CN101316331A - Expansion device with television video input and output function - Google Patents

Abstract

The invention relates to an expansion device with video and audio input and output functions of a television, which is used for a portable electronic device to expand the functions and comprises a television signal receiving unit for receiving television signals, a high-speed serial interface (Express) connector unit electrically connected with the portable electronic device, a switching unit for transmitting the television signals output by the television signal receiving unit to the portable electronic device through the high-speed serial interface connector unit, a sound coding and decoding unit for coding and decoding sound signals transmitted by the portable electronic device through the high-speed serial interface connector unit and the switching unit and outputting the sound signals to an external loudspeaker, and a graphic processing unit for receiving video information output by the portable electronic device through the high-speed serial interface connector unit, processing the video information and outputting the processed video information to an external display. The invention can be used for unspecified portable electronic devices, and can also output independent video and audio signals, so that the notebook computer can perform other functional operations and can also receive and play television programs.

Description

Expansion device with TV audio and video input and output functions

technical field

The invention relates to an expansion device, in particular to an expansion device with TV video and audio input and output functions for portable electronic devices to expand functions.

Background technique

At present, many notebook computers are equipped with an expansion device, which is generally called a docking station for the expansion of the functions of the notebook computer. , local area network (LAN) and keyboard, etc. to connect external peripheral devices. Therefore, as long as the notebook computer is connected to the corresponding expansion device, the external peripheral devices connected to the expansion device can be directly used, and the need to face a bunch of connections every time in order to connect each peripheral device to the notebook computer is eliminated. line trouble.

Please refer to Fig. 1, which is a circuit block diagram of an existing expansion device with TV audio-visual input in the past, which is a circuit block of an expansion (dock) device with TV audio-visual input disclosed in the application No. 93127026 of Taiwan, China Schematic diagram, one end of the expansion device 20 can be connected to various external devices 21, such as a keyboard, mouse, liquid crystal display, hard disk or USB device, etc., and the other end of the expansion device 20 can be connected to a notebook computer 22 in a wired or wireless manner.

The expansion device 20 has a connection port expansion circuit 25 connected with a first wireless transmission module 24, an external device 21 and a connector 26, and one is connected with a USB interface 28 and a second wireless transmission module 29 The TV receiver 27, wherein the connector 26 is connected to the notebook computer 22, and the USB interface 28 is connected to the connector 26. The connection port expansion circuit 25 is used to pass the signal input by the external device 21 through the first wireless transmission module 24 (when the notebook computer 22 is not electrically connected to the connector 26) or the connector 26 (when the notebook computer 22 is not electrically connected to the connector 26 ). 26 when electrically connected) to the notebook computer 22, or transmit the signal of the notebook computer 22 to the external device 21 through the first wireless transmission module 24 or the connector 26.

TV receiver 27 receives TV signal, and through USB interface 28 and connector 26 (when notebook computer 22 is electrically connected with connector 26) or second wireless transmission module 29 (when notebook computer 22 is not connected with connector 26 when electrically connected) transmit the received TV signal to the notebook computer 22, or receive the control signal transmitted by the notebook computer 22.

However, the above-mentioned expansion device 20 has the following disadvantages:

1. The connection port expansion circuit 25 of the expansion device 20 is actually a so-called port repeater (portduplicator), which mainly extends (repeats) the existing connection port of the notebook computer 22 itself on the expansion device 20, It is convenient for the notebook computer 22 to be directly connected to the external device 21 through the expansion device 20 . Since manufacturers of notebook computers have different circuit designs for the connection ports, this expansion device 20 can only be used by the corresponding specific notebook computer 22 and cannot be applied to general notebook computers.

2. The expansion device 20 adopts a port duplicator structure, so if the expansion device 20 has a screen output terminal, such as an analog signal interface (D-sub) or a digital video interface (DVI), it is only an original note. The extension of the screen output line of the notebook computer 22; similarly, the audio output terminal on the expansion device is also an extension of the original notebook computer 22 audio output line. Therefore, the picture of the display connected externally to the expansion device 20 is the same as the picture on the notebook computer 22 , and the sound output by the speaker externally connected to the expansion device 20 is also the same as the sound on the notebook computer 22 . Therefore, the user cannot watch full-screen multimedia video and audio on the expansion device 20 while playing 3D games on the notebook computer 22 at the same time.

It can be seen that the above-mentioned existing expansion device with TV video and audio input obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently. In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general products do not have a suitable structure to solve the above-mentioned problems. This is obviously the relevant industry. urgent problem to be solved. Therefore, how to create a new type of expansion device with TV video and audio input and output functions is one of the current important research and development issues, and has also become a goal that the industry needs to improve.

In view of the defects of the above-mentioned existing expansion devices with TV video and audio input, the inventor actively researches and innovates based on years of rich practical experience and professional knowledge engaged in the design and manufacture of such products, and cooperates with the application of academic theories, in order to create a The expansion device with TV video and audio input and output functions of a new structure can improve the general existing expansion device with TV video and audio input to make it more practical. Through continuous research, design, and after repeated trial samples and improvements, the present invention with practical value is finally created.

Contents of the invention

The purpose of the present invention is to overcome the defects of existing expansion devices with TV video and audio input, and provide a new structure of expansion devices with TV video and audio input and output functions that can be used by unspecified portable electronic devices. Very practical.

Another object of the present invention is to provide a novel structure of an expansion device capable of outputting independent audio and video signals and having functions of TV audio and video input and output, which is more suitable for practical use.

The purpose of the present invention and the solution to its technical problems are achieved by adopting the following technical solutions. According to the present invention, an expansion device with TV video and audio input and output functions is provided for a portable electronic device to expand its functions. The expansion device includes: a TV signal receiving unit for receiving a TV signal; a high-speed a serial interface (Express card) connector unit, used for electrical connection with the portable electronic device; an adapter unit, connected with the television signal receiving unit and the high-speed serial interface (Express card) connector unit, The TV signal processed by the TV signal receiving unit is transmitted to the portable electronic device through the high-speed serial interface (Express card) connector unit; a sound codec unit is connected with the adapter unit, To receive an audio signal transmitted from the portable electronic device through the high-speed serial interface (Express card) connector unit and the adapter unit; and a graphics processing unit, through the high-speed serial interface (Expresscard) connector The unit is used for receiving a video data output by the portable electronic device and outputting after processing.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

The aforementioned expansion device with TV video and audio input and output functions, wherein the adapter unit is a universal serial bus (USB) hub, and the TV signal receiving unit and the sound codec unit all have a USB interface and are connected with The USB hub is connected so as to be connected with the high-speed serial interface (Express card) connector unit via the USB hub, and carry out signal transmission with the portable electronic device; the graphics processing unit has a peripheral element expansion fast interface ( PCIExpress) interface to connect the high-speed serial interface (Express card) connector unit, and carry out signal transmission with the portable electronic device.

The aforementioned expansion device with TV video and audio input and output functions, wherein the adapter unit includes a USB hub and a Peripheral Component Expansion Express Interface (PCIE) to Peripheral Component Expansion Interface (PCI) bridge (bridge), the TV Both the signal receiving unit and the sound codec unit have a USB interface and are connected to the USB hub, so as to be connected to the high-speed serial interface (Express card) connector unit through the USB hub, and to carry out signals with the portable electronic device Transmission; the graphics processing unit has a peripheral component expansion interface (PCI) interface and connects the peripheral component expansion express interface (PCIE) to the peripheral component expansion interface (PCI) bridge (bridge), so as to expand the fast interface ( A PCIE) to peripheral component expansion interface (PCI) bridge (bridge) is connected to the high-speed serial interface (Express card) connector unit, and performs signal transmission with the portable electronic device.

The aforementioned expansion device with TV video and audio input and output functions, wherein the adapter unit includes a USB hub and a peripheral component expansion interface (PCI) interface and connects the peripheral component expansion express interface (PCIE) to the peripheral component expansion interface (PCI) bridge (bridge), the TV signal receiving unit has a USB interface and is connected to the USB hub, so as to be connected to the high-speed serial interface (Express card) connector unit through the USB hub, and to the portable The electronic device performs signal transmission; the graphic processing unit and the sound codec unit all have a peripheral component expansion interface (PCI) interface, and connect the peripheral component expansion express interface (PCIE) to peripheral component expansion interface (PCI) bridge ( bridge), to connect the high-speed serial interface (Express card) connector unit via the peripheral component expansion express interface (PCIE) to peripheral component expansion interface (PCI) bridge (bridge), and carry out with the portable electronic device signal transmission.

The aforementioned expansion device with TV video and audio input and output functions, wherein the adapter unit includes a USB hub and a peripheral component expansion express interface (PCIE) to peripheral component expansion interface (PCI) bridge (bridge), the sound The codec unit has a USB interface and is connected to the USB hub so as to be connected to the high-speed serial interface (Express card) connector unit via the USB hub to perform signal transmission with the portable electronic device; the graphic processing unit and The TV signal receiving unit all has a peripheral component expansion interface (PCI) interface and connects the peripheral component expansion express interface (PCIE) to the peripheral component expansion interface (PCI) bridge (bridge), so as to expand the fast interface ( A PCIE) to peripheral component expansion interface (PCI) bridge (bridge) is connected to the high-speed serial interface (Express card) connector unit, and performs signal transmission with the portable electronic device.

The aforementioned expansion device with TV video and audio input and output functions, wherein the switching unit is a peripheral component expansion express interface (PCIE) to peripheral component expansion interface (PCI) bridge (bridge), the TV signal receiving unit, Both the sound codec unit and the graphics processing unit have a peripheral component expansion interface (PCI) interface and connect the peripheral component expansion express interface (PCIE) to the peripheral component expansion interface (PCI) bridge (bridge), so as to pass through the peripheral A Component Expansion Express (PCIE) to Peripheral Component Expansion Interface (PCI) bridge (bridge) is connected to the high-speed serial interface (Express card) connector unit to perform signal transmission with the portable electronic device.

The aforementioned expansion device with TV video and audio input and output functions, wherein the adapter unit includes a peripheral component expansion express interface (PCIE) switch and a USB hub, and the TV signal receiving unit and the sound codec unit have A USB interface is connected to the USB hub, so as to be connected to the high-speed serial interface (Express card) connector unit via the USB hub, and carry out signal transmission with the portable electronic device; the graphics processing unit has a peripheral element expansion Express interface (PCI Express) interface and connect this peripheral component to expand express interface (PCIE) switch (Switch), to connect this high-speed serial interface (Express card) connector unit through this peripheral component expands express interface (PCIE) switch , and carry out signal transmission with the portable electronic device.

The aforementioned expansion device with TV video and audio input and output functions, wherein the adapter unit includes a high-speed serial interface (Express card) switch and a USB hub, the TV signal receiving unit has a USB interface and is connected to the USB Hub, to connect with the high-speed serial interface (Express card) connector unit through the USB hub, and carry out signal transmission with the portable electronic device; the graphics processing unit and the sound codec unit all have a peripheral component expansion Express interface (PCI Express) interface and connect this peripheral component expansion express interface (PCIE) switch, to connect this high-speed serial interface (Express card) connector unit through this peripheral component expansion express interface (PCIE) switch, and with The portable electronic device performs signal transmission.

The aforesaid expansion device with TV video and audio input and output functions, wherein the adapter unit includes a peripheral component expansion express interface (PCIE) switch and a USB hub, the sound codec unit has a USB interface and is connected to the USB Hub, to connect with the high-speed serial interface (Express card) connector unit through the USB hub, and carry out signal transmission with the portable electronic device; the graphics processing unit and the TV signal receiving unit all have a peripheral element expansion Express interface (PCI Express) interface and connect this peripheral component expansion express interface (PCIE) switch, to connect this high-speed serial interface (Express card) connector unit through this peripheral component expansion express interface (PCIE) switch, and with The portable electronic device performs signal transmission.

The aforementioned expansion device with TV video and audio input and output functions, wherein the adapter unit is a Peripheral Component Expansion Express Interface (PCIE) switch, the TV signal receiving unit, the sound codec unit and the graphics processing unit are all It has a peripheral component expansion express interface (PCIExpress) interface and is connected to the peripheral component expansion express interface (PCIE) switch, so as to connect the high-speed serial interface (Express card) connector through the peripheral component expansion express interface (PCIE) switch unit, and carry out signal transmission with the portable electronic device.

In the above-mentioned expansion device with TV video and audio input and output functions, the graphics processing unit can be connected to an external display, so as to output the processed video signal to the external display.

In the above-mentioned expansion device with TV video and audio input and output functions, the audio codec unit can be connected to an external speaker, so as to output the processed audio signal to the external speaker.

The aforementioned expansion device with TV video and audio input and output functions, wherein the graphics processing unit includes a graphics processor (GPU), a random access memory (Dram) and a TV signal output module, the random access The memory is a data buffer (Buffer) corresponding to the graphics processor. The graphics processor converts the video data output by the portable electronic device into image frame data, and then sends it to the TV signal output module. The TV signal The output module converts the image signal into a signal specification suitable for the external display and outputs it.

In the aforementioned expansion device with TV video and audio input and output functions, the TV signal output module is a composite terminal TV encoder.

In the aforementioned expansion device with TV video and audio input and output functions, the TV signal output module is an S-terminal TV encoder.

In the aforementioned expansion device with TV video and audio input and output functions, the TV signal output module is a component TV encoder.

In the above-mentioned expansion device with TV video and audio input and output functions, the TV signal output module is a digital video interface (DVI)/high-definition multimedia interface (HDMI) transmitter.

The above-mentioned expansion device with TV video and audio input and output functions, wherein the TV signal receiving unit is an analog TV signal receiver, used to receive the analog TV signal and digitize the analog TV signal through the adapter unit and the The high-speed serial interface (Express card) connector unit is transmitted to the portable electronic device.

The aforementioned expansion device with TV video and audio input and output functions, wherein the TV signal receiving unit is a digital TV signal receiver, used to receive digital TV signals and pass through the adapter unit and the high-speed serial interface (Express card) ) The connector unit is sent to the portable electronic device.

The aforementioned expansion device with TV video and audio input and output functions, wherein the high-speed serial interface (Express card) connector unit is a connection interface that meets the high-speed serial interface (Express card) specification, and can be connected to the portable A high-speed serial interface (Expresscard) slot of the type electronic device.

Compared with the prior art, the present invention has obvious advantages and beneficial effects. As can be seen from the above, in order to achieve the above object, the present invention has an expansion device with TV video and audio input and output functions, which is used for a portable electronic device to expand its functions. The device includes a TV signal receiving unit, a sound codec unit, a A high-speed serial interface (Express card) connector unit, a switching unit and a graphics processing unit. The TV signal receiving unit receives a TV signal. The sound codec unit encodes, decodes and outputs sound signals. The high-speed serial interface (Express card) connector unit is used for electrical connection with the portable electronic device. The adapter unit is connected with the TV signal receiving unit, the sound codec unit and the high-speed serial interface (Express card) connector unit, and is used to pass the TV signal processed by the TV signal receiving unit through the high-speed serial interface The (Express card) connector unit is transmitted to the portable electronic device, and the audio signal is also transmitted from the portable electronic device to the audio codec unit through the high-speed serial interface (Express card) connector unit. The graphics processing unit receives the video data output by the portable electronic device through the high-speed serial interface (Express card) connector unit, and outputs it after processing.

Preferably, the conversion unit is a USB hub (USB HUB). Both the TV signal receiving unit and the audio codec unit have a USB interface and are connected to the USB hub, so as to be connected to the high-speed serial interface (Express card) connector unit through the USB hub, and to be connected to the portable electronic device for signal transmission. The graphics processing unit has a peripheral component expansion express interface (PCI Express) interface to connect the high-speed serial interface (Express card) connector unit, and carry out signal transmission with the portable electronic device.

Preferably, the conversion unit includes a USB hub and a peripheral component expansion express (PCIE) to peripheral component expansion interface (PCI) bridge. Both the TV signal receiving unit and the sound codec unit have a USB interface and are connected to the USB hub, so as to be connected to the high-speed serial interface (Express card) connector unit through the USB hub, and to be connected to the portable electronic The device performs signal transmission; the graphics processing unit has a peripheral component expansion interface (PCI) interface and is connected to the peripheral component expansion express interface (PCIE) to the peripheral component expansion interface (PCI) bridge (bridge), so as to expand through the peripheral component A PCIE-to-PCI bridge (bridge) is connected to the high-speed serial interface (Express card) connector unit to perform signal transmission with the portable electronic device.

Preferably, the conversion unit includes a USB hub and a peripheral component expansion express (PCIE) to peripheral component expansion interface (PCI) bridge. The television signal receiving unit has a USB interface and is connected to the USB hub, so as to be connected to the high-speed serial interface (Express card) connector unit via the USB hub, and perform signal transmission with the portable electronic device; the graphics processing Both the unit and the sound codec unit have a PCI interface and connect the peripheral component expansion express interface (PCIE) to the peripheral component expansion interface (PCI) bridge (bridge), so as to pass through the peripheral component expansion express interface (PCIE) to the peripheral A component expansion interface (PCI) bridge (bridge) is connected with the high-speed serial interface (Express card) connector unit, and performs signal transmission with the portable electronic device.

Preferably, the conversion unit includes a USB hub and a peripheral component expansion express (PCIE) to peripheral component expansion interface (PCI) bridge. The sound codec unit has a USB interface and is connected to the USB hub, so as to be connected to the high-speed serial interface (Express card) connector unit via the USB hub, and to perform signal transmission with the portable electronic device; the graphics processing Both the unit and the TV signal receiving unit have a peripheral component expansion interface (PCI) interface and connect the peripheral component expansion express interface (PCIE) to the peripheral component expansion interface (PCI) bridge (bridge), so as to expand the fast The interface (PCIE) to peripheral component expansion interface (PCI) bridge (bridge) is connected with the high-speed serial interface (Express card) connector unit, and carries out signal transmission with the portable electronic device.

Preferably, the conversion unit is a peripheral component expansion express (PCIE) to peripheral component expansion interface (PCI) bridge. The TV signal receiving unit, the sound codec unit and the graphics processing unit all have a peripheral component expansion interface (PCI) interface and are connected to the peripheral component expansion express interface (PCIE) to peripheral component expansion interface (PCI) bridge ( bridge), to connect the high-speed serial interface (Express card) connector unit via the peripheral component expansion express interface (PCIE) to peripheral component expansion interface (PCI) bridge (bridge), and carry out with the portable electronic device signal transmission.

Preferably, the transition unit includes a USB hub and a Peripheral Component Expansion Express (PCIE) switch. The TV signal receiving unit and the sound codec unit all have a USB interface and are connected to the USB hub, so as to be connected to the high-speed serial interface (Express card) connector unit through the USB hub, and to be connected to the portable The electronic device performs signal transmission; the graphics processing unit has a peripheral component expansion express interface (PCI Express) interface and is connected to the peripheral component expansion express interface (PCIE) switch, so as to be connected via the peripheral component expansion express interface (PCIE) switch The high-speed serial interface (Express card) connector unit is used for signal transmission with the portable electronic device.

Preferably, the transition unit includes a USB hub and a Peripheral Component Expansion Express (PCIE) switch. The television signal receiving unit has a USB interface and is connected to the USB hub, so as to be connected to the high-speed serial interface (Express card) connector unit via the USB hub, and perform signal transmission with the portable electronic device; the graphics processing The unit and the sound codec unit all have a peripheral component expansion express interface (PCI Express) interface and are connected to the peripheral component expansion express interface (PCIE) switch, so as to connect the high speed through the peripheral component expansion express interface (PCIE) switch. A serial interface (Express card) connector unit for signal transmission with the portable electronic device.

Preferably, the transition unit includes a USB hub and a Peripheral Component Expansion Express (PCIE) switch. The sound codec unit has a USB interface and is connected to the USB hub, so as to be connected to the high-speed serial interface (Express card) connector unit via the USB hub, and to perform signal transmission with the portable electronic device; the graphics processing Both the unit and the TV signal receiving unit have a peripheral component expansion express interface (PCI Express) interface and are connected to the peripheral component expansion express interface (PCIE) switch, so as to connect the high-speed A serial interface (Express card) connector unit for signal transmission with the portable electronic device.

Preferably, the switching unit is a PCIE switch. The TV signal receiving unit, the sound codec unit and the graphics processing unit all have a peripheral component expansion express interface (PCI Express) interface and are connected to the peripheral component expansion express interface (PCIE) switch, so as to expand the fast interface through the peripheral component The interface (PCIE) switch is connected with the high-speed serial interface (Express card) connector unit, and performs signal transmission with the portable electronic device.

Preferably, the graphics processing unit can be connected to an external display, so as to output the processed video signal to the external display.

Preferably, the audio codec unit can be connected to an external speaker, so as to output the processed audio signal to the external speaker.

Preferably, the graphics processing unit includes a graphics processing unit (GPU), a random access memory (Dram) and a TV signal output module. The random access memory is a data buffer corresponding to the graphics computing unit. The graphics processor converts the video data output by the portable electronic device into image frame data, and then sends it to the TV signal output module. The TV signal output module converts the image signal into a signal suitable for the external display and outputs it.

Preferably, the TV signal output module is a composite terminal (Composite out) TV encoder (TV Encoder).

Preferably, the TV signal output module is an S-video TV encoder (TVEncoder).

Preferably, the TV signal output module is a component out TV encoder (TV Encoder).

Preferably, the TV signal output module is a digital video interface/high definition multimedia interface DVI/HDMI transmitter (Transmitter).

Preferably, the TV signal receiving unit is an analog TV signal receiver, which is used to receive the analog TV signal and digitize the analog TV signal and transmit it through the adapter unit and the high-speed serial interface (Express card) connector unit to the portable electronic device.

Preferably, the TV signal receiving unit is a digital TV signal receiver for receiving digital TV signals and transmitting them to the portable electronic device through the adapter unit and the high-speed serial interface (Express card) connector unit .

Preferably, the high-speed serial interface (Express card) connector unit is a connection interface conforming to the high-speed serial interface (Express card) specification.

By means of the above-mentioned technical scheme, the expansion device with TV video and audio input and output functions of the present invention has at least the following advantages and beneficial effects: the present invention is provided with a high-speed serial interface (Express card) A portable electronic device with a serial interface (Express card), such as a notebook computer, can be connected to an expansion device, so that the expansion device can be applied to notebook computers of different brands and models. At the same time, the present invention integrates the TV signal receiving unit, the sound codec unit and the graphics processing unit in the expansion device, so that the expansion device can not only transmit the received TV signal to the notebook computer, but also output the TV signal to an external display And the external speaker, so that the notebook computer can operate other functions, and the user can also use the expansion device to play TV programs, which is very suitable for practical use.

In summary, the present invention relates to an expansion device with TV video and audio input and output functions, which is used for portable electronic devices to expand functions, including a TV signal receiving unit for receiving TV signals, and a portable electronic device A high-speed serial interface (Express card) connector unit electrically connected, the TV signal output TV signal of the TV signal receiving unit is transmitted to a portable electronic device through the high-speed serial interface (Express card) connector unit, an adapter unit, which can The audio signal from the portable electronic device is coded and decoded through the high-speed serial interface (Express card) connector unit and the adapter unit, and output to the sound codec unit of the external speaker, and a graphics processing unit, which passes through the high-speed serial The interface (Express card) connector unit receives the video data output by the portable electronic device and outputs it to an external display after processing. The invention can be used by unspecified portable electronic devices, and can also output independent video and audio signals, so that the notebook computer can receive and play TV programs while performing other functional operations, which is very suitable for practical use. The present invention has the advantages and practical value mentioned above. It has great improvements in both product structure and function, and has made remarkable progress in technology, and has produced easy-to-use and practical effects. Compared with the existing The input expansion device has enhanced outstanding functions, so it is more suitable for practical use, and it is a novel, progressive and practical new design.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

FIG. 1 is a circuit block diagram of a conventional expansion device with TV video and audio input.

FIG. 2 is a main circuit block diagram of the first preferred embodiment of the expansion device with TV video and audio input and output functions according to the present invention.

FIG. 3 is a main circuit block diagram of a second preferred embodiment of an expansion device with TV video and audio input and output functions according to the present invention.

FIG. 4 is a main circuit block diagram of a third preferred embodiment of an expansion device with TV video and audio input and output functions according to the present invention.

Detailed ways

In order to further explain the technical means and effects that the present invention adopts to achieve the intended purpose of the invention, the specific implementation methods, Structure, characteristic and effect thereof are as follows in detail.

The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of three preferred embodiments with reference to the drawings. Three preferred embodiments of the expansion device with TV video and audio input and output functions of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

Please refer to FIG. 2 , which is a main circuit block diagram of the first preferred embodiment of the expansion device with TV video and audio input and output functions of the present invention. In the first preferred embodiment of the present invention, an expansion device with TV video and audio input and output functions, the expansion device 3 is used by a portable electronic device (such as a notebook computer) to expand its functions. And like the above-mentioned conventional expansion device, the expansion device 3 of this embodiment is mainly used for the notebook computer 4 . The extension device 3 mainly includes an express card connector unit 300 , an adapter unit 30 , a TV signal receiving unit 32 , an audio codec unit (audio codec) 33 and a graphics processing unit 34 .

The existing circuit design (not shown) in the expansion device 3, for example, can be connected with various functional IC chips through the adapter unit 30, which can be used for such as mouse, printer (ie printer), USB device, area Network (LAN), keyboard and other external peripheral devices (not shown in the figure) are connected. Therefore, as long as the notebook computer 4 is connected to the expansion device 3 , the external peripheral devices connected to the expansion device 3 can be used directly.

Above-mentioned high-speed serial interface (Express card) connector unit 300, in order to be connected with notebook computer 4, in the present embodiment, high-speed serial interface (Express card) connector unit 300 is a compliant high-speed serial interface (Express card) standard connection interface.

The above-mentioned adapter unit 30 is a USB hub (USB HUB) (hereinafter referred to as the USB hub 31) in this embodiment, which is connected with the high-speed serial interface (Express card) connector unit 300, and can provide multiple connection ports (not shown in the figure) for connecting multiple electronic devices.

The above-mentioned TV signal receiving unit 32 is electrically connected to the USB hub 31, which receives the TV signal and transmits the TV signal to the notebook computer 4 through the USB hub 31 and the high-speed serial interface (Express card) connector unit 300. The TV signal receiving unit 32 can be an analog TV (Analog TV) signal receiver connected to an antenna or connected to a cable TV cable, or a digital TV (Digital TV) signal receiver connected to an antenna or connected to a cable TV cable, or both integration of those. The TV signal receiving unit 32 is mainly to digitize and decode the analog TV signal through a tuner (Tuner), and output TV video and audio data to the notebook computer 4; or output the digital TV signal to the TV after the tuner Audio-visual data to the notebook computer 4.

Therefore, when the user uses the notebook computer 4 to watch TV programs, the notebook computer 4 controls the expansion device 3 to pass the TV signal received by the TV signal receiving unit 32 through the USB hub 31 and the high-speed serial interface (Express card) connector unit 300 Send to laptop4.

The audio codec unit 33 is electrically connected to the USB hub 31 to receive an audio signal from the notebook computer 4 via the Express card connector unit 300 and the USB hub 31 .

In addition, the audio codec unit 33 can be connected with an external speaker 5 , which can be controlled by the notebook computer 4 , and output the audio signal from the notebook computer to the external speaker 5 after encoding and decoding in due course.

The graphics processing unit 34 mentioned above includes a graphics processing unit (GPU) 35 , a TV signal output module 36 and a random access memory (display memory, DRAM) 37 . In the present embodiment, the graphic arithmetic unit 35 has a peripheral component expansion express interface (PCI Express, PCIE) interface (not shown in the figure), in order to be electrically connected with the high-speed serial interface (Express card) connector unit 300, with Receive the video signal from the notebook computer 4 through the high-speed serial interface (Express card) connector unit 300 and temporarily store it in the random access memory 37 as the data buffer (Buffer), and the graphics operation unit 35 is then randomly The access memory 37 takes out the video data and processes it into an image frame data, and then sends it to the TV signal output module 36 connected to an external display 6 . The TV signal output module 36 is a TV encoder (TV Encoder) with a composite terminal (Composite out) or/and S terminal (S-video) or/and component out (Component out), which converts the image signal to Then output to the external monitor 6 after forming the corresponding video specification.

In this way, the notebook computer 4 can output the video signal through the high-speed serial interface (Express card) connector unit 300 of the expansion device 3 to the graphics processing unit 34 for processing, and then play it on the external display 6 connected to the expansion device 3 .

Therefore, when the user chooses to output the TV signal to the external display 6 by operating the notebook computer 4, the notebook computer 4 transmits the video signal to the graphics processing unit 34 through the high-speed serial interface (Express card) connector unit 300 After processing by the graphics processor 35 , it is output to the external display 6 through the TV signal output module 36 . At the same time, the notebook computer 4 transmits the sound signal to the sound codec unit 33 through the high-speed serial interface (Express card) connector unit 300 and the USB hub 31 for processing and then outputs it to the external speaker 5.

Since the expansion device 3 has an independent graphics processing unit 34 and a sound codec unit 33, when connected to the notebook computer 4, the expansion device 3 can process an additional audio-visual data, and the audio-visual data can be compatible with the notebook computer. The video and audio data played on the computer 4 are different. Therefore, when the user wants to watch TV while using the notebook computer 4, such as surfing the Internet, processing files or playing 3D games, the TV signal can be output to the external display 6 and the external speaker 5 through the expansion device 4, so that there is no need The screen and speakers of the notebook computer will be occupied for watching TV, so that the notebook computer can provide users with other purposes, which is very suitable for practical use.

In addition, when the external display 6 or the external speaker 5 is a device that supports HDMI (High-Definition Multimedia Interface, high-definition multimedia interface), the TV signal output module 36 can also be a digital video interface/high-definition multimedia interface (hereinafter referred to as DVI/HDMI) transmitter. At this time, the sound codec unit 33 can connect the output to a DVI/HDMI transmitter. The DVI/HDMI transmitter then integrates the received video signal and sound signal (currently standardized as a Sony Philips digital audio interface (SPDIF) signal) into an HDMI signal and then outputs it to the external display 6 or the external speaker 5 .

Of course, the sound codec unit 33 can also not be connected to the DVI/HDMI transmitter (i.e. the TV signal output module 36); in this case, the DVI/HDMI transmitter only outputs the HDMI signal containing the video signal (its signal is the same as DVI) .

In addition, with the evolution of the semiconductor manufacturing process, the TV signal output module 36 or the random access memory 37 of the graphics processing unit 34 can be integrated into a graphics processing unit (GPU) 35 .

Please refer to FIG. 3 , which is a main circuit block diagram of a second preferred embodiment of an expansion device with TV video and audio input and output functions according to the present invention. The second preferred embodiment of the expansion device with TV video and audio input and output functions of the present invention differs from the first embodiment in that the adapter unit 30 of the expansion device 3 of this embodiment includes a USB hub 31 and a peripheral Component Expansion Express (PCIE) to Peripheral Component Expansion Interface (PCI) bridge (bridge) 38 , both of which are connected to a high-speed serial interface (Express card) connector unit 300 .

And the graphics processing unit (GPU) 35 of the graphics processing unit 34 of the present embodiment is a peripheral component expansion interface (hereinafter referred to as PCI) interface, and it turns peripheral component expansion interface (PCI) bridge (PCI) with peripheral component expansion express interface (PCIE) ( bridge) 38 connection, to carry out signal transmission with notebook computer 4 through peripheral component expansion express interface (PCIE) to peripheral component expansion interface (PCI) bridge (bridge) 38 and high-speed serial interface (Express card) connector unit 300 .

Like the first embodiment, the USB hub 31 is connected with a TV signal receiving unit 32 and a sound codec unit 33 with a USB interface, so that the TV video and audio data processed by the TV signal receiving unit 32 can be passed through the USB hub 31 and the high-speed serial interface ( Express card) connector unit 300 is transmitted to the notebook computer 4. And the audio signal output by the notebook computer 4 is transmitted to the audio codec unit 33 through the high-speed serial interface (Express card) connector unit 300 and the USB hub 31.

Therefore, when the external monitor 6 connected to the expansion device 3 displays a picture, the notebook computer 4 outputs the video signal to the high-speed serial interface (Express card) connector unit 300 of the expansion device 3, and expands the express interface through peripheral components. (PCIE) to Peripheral Component Expansion Interface (PCI) bridge (bridge) 38, the video and television signal is sent to graphics processor 35 for calculation processing by Peripheral Component Expansion Interface (PCI) bus (not shown in the figure), and finally Output to the TV signal output module 36.

Furthermore, in addition to the above-mentioned embodiment, the present embodiment can also be changed into that the TV signal receiving unit 32 has a USB interface and is connected to the USB hub 31, so as to be connected to the high-speed serial interface (Express card) connector unit 300 via the USB hub 31, And carry out signal transmission with notebook computer 4; And graphics processing unit 34 and sound codec unit 33 all have peripheral component expansion interface (PCI) interface, and connect peripheral component expansion express interface (PCIE) to turn peripheral component expansion interface (PCI) Bridge (bridge) 38, to turn peripheral component expansion interface (PCI) bridge (bridge) 38 to connect high-speed serial interface (Express card) connector unit 300 via peripheral component expansion express interface (PCIE), and with notebook computer 4 for signal transmission.

Or, the sound codec unit 33 has a USB interface and is connected to the USB hub 31, so as to be connected to the high-speed serial interface (Express card) connector unit 300 via the USB hub 31, and carry out signal transmission with the notebook computer 4; and the graphics processing unit 34 and the TV signal receiving unit 32 have a peripheral component expansion interface (PCI) interface and connect a peripheral component expansion express interface (PCIE) to a peripheral component expansion interface (PCI) bridge (bridge) 38, to expand the fast interface ( PCIE) to Peripheral Component Expansion Interface (PCI) bridge (bridge) 38 is connected to high-speed serial interface (Express card) connector unit 300, and carries out signal transmission with notebook computer 4.

In addition, in this embodiment, the USB hub 31 can be omitted directly, and the graphics processing unit 34, the TV signal receiving unit 32, and the audio codec unit 33, which are peripheral component expansion interface (PCI) interfaces, are all connected to the peripheral component expansion fast interface. (PCIE) turn Peripheral Component Expansion Interface (PCI) bridge (bridge) 38 (shown in dotted line among Fig. 3), to turn Peripheral Component Expansion Interface (PCI) bridge (bridge) via Peripheral Component Expansion Express Interface (PCIE) 38 is connected with a high-speed serial interface (Expresscard) connector unit 300 for signal transmission with the notebook computer 4 .

Please refer to FIG. 4 again, which is a main circuit block diagram of the third preferred embodiment of the expansion device with TV video and audio input and output functions of the present invention. The present invention has the third preferred embodiment of the expansion device of TV audio-visual input and output function, and its difference with the first embodiment is that the switching unit 30 includes a peripheral component expansion express interface (PCIE) switch (Switch) 31' and a USB hub 31, the TV signal receiving unit 32, and the audio codec unit 33 all have a USB interface and are connected to the USB hub 31, so as to be connected to the high-speed serial interface (Express card) connector unit 300 through the USB hub 31, And carry out signal transmission with notebook computer 4; Graphics processing unit 34 has a PCI Express interface and connects Peripheral Component Expansion Express Interface (PCIE) switch 31 ', to connect high speed through Peripheral Component Expansion Express Interface (PCIE) switch 31 ' A serial interface (Expresscard) connector unit 300 for signal transmission with the notebook computer 4 .

In addition, in addition to the above-mentioned embodiment, the present embodiment can also be changed into that the TV signal receiving unit 32 has a USB interface and is connected to the USB hub 31, so as to be connected to the high-speed serial interface (Express card) connector unit 300 through the USB hub 31. , and carry out signal transmission with notebook computer 4; Graphics processing unit 34, sound codec unit 33 all have a PCI Express interface and connect peripheral component expansion express interface (PCIE) switch 31 ', to expand the fast interface ( The PCIE switch 31' is connected to the high-speed serial interface (Express card) connector unit 300, and performs signal transmission with the notebook computer 4.

Or, the sound codec unit 33 has a USB interface and is connected to the USB hub 31, so as to be connected with the high-speed serial interface (Express card) connector unit 300 via the USB hub 31, and carry out signal transmission with the notebook computer 4; graphics processing Unit 34, TV signal receiving unit 32 all have a peripheral component expansion express interface (PCI Express) interface and connect this peripheral component expansion express interface (PCIE) switch 31 ', to expand the express interface (PCIE) switch 31 through peripheral component 'connect the high-speed serial interface (Express card) connector unit 300, and carry out signal transmission with the notebook computer 4.

Furthermore, the connection unit 30 of the present embodiment can also omit the USB hub 31, and the TV signal receiving unit 32, the sound codec unit 33 and the graphics processing unit 34 all have a peripheral component expansion express interface (PCI Express) interface, which can simultaneously Connect the peripheral component expansion express interface (PCIE) switch 31', so as to connect the high-speed serial interface (Express card) connector unit 300 through the peripheral component expansion express interface (PCIE) switch 31', and carry out signals with the notebook computer 4 transmission.

In the above embodiment, the TV signal receiving unit 32 can transmit the processed TV video and audio signals to Notebook 4, and can play on the panel and built-in speakers of the Notebook 4. And when selecting to be broadcasted by the external monitor 6 and the external speaker 5, the notebook computer 4 passes the video signal and the sound signal through the high-speed serial interface (Expresscard) connector unit 300 and the peripheral component expansion express interface (PCIE) switch 31 'respectively transmitted to the graphics processing unit 34 and the audio codec unit 33, so that the image signal processed by the graphics processing unit 34 and the audio signal processed by the audio codec unit 33 are output to the external display 6 and the external speaker 5 respectively.

In summary, the present invention sets a high-speed serial interface (Express card) connector unit 300 on the expansion device 3, so as long as a notebook computer with a high-speed serial interface (Express card) interface can be connected to the expansion device 3, so that The expansion device 3 is applicable to notebook computers of different brands and models. Simultaneously, the present invention integrates the TV signal receiving unit 32, the sound codec unit 33 and the graphics processing unit 34 in the expansion device 3, so that the expansion device 3 can transmit the received TV signal to the notebook computer 4, and also transmit the received TV signal to the notebook computer 4. The TV signal is output to an external monitor and external speakers. Therefore, while the notebook computer can perform other functional operations, the user can also use the expansion device to play TV programs, which is very practical.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, can use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all the content that does not depart from the technical solution of the present invention, according to the present invention Any simple modifications, equivalent changes and modifications made to the above embodiments by the technical essence still belong to the scope of the technical solutions of the present invention.

Claims (20)

1. An expansion device with TV video and audio input and output functions, suitable for a portable electronic device to expand functions, characterized in that the expansion device includes: A TV signal receiving unit, used to receive a TV signal; A high-speed serial interface connector unit for electrically connecting with the portable electronic device; An adapter unit is connected with the TV signal receiving unit and the high-speed serial interface connector unit, and is used to transmit the TV signal processed by the TV signal receiving unit to the computer via the high-speed serial interface connector unit portable electronic devices; an audio codec unit connected to the adapter unit to receive an audio signal from the portable electronic device through the high-speed serial interface connector unit and the adapter unit; and A graphics processing unit is used to receive a video data output from the portable electronic device through the high-speed serial interface connector unit and output it after processing. 2. The expansion device with TV video and audio input and output functions as claimed in claim 1, wherein the adapter unit is a Universal Serial Bus hub, and the TV signal receiving unit and the audio codec unit All have a USB interface and are connected to the USB hub, so as to be connected to the high-speed serial interface connector unit via the USB hub, and perform signal transmission with the portable electronic device; the graphics processing unit has a peripheral element expansion The fast interface interface is used to connect the high-speed serial interface connector unit to perform signal transmission with the portable electronic device. 3. The expansion device with TV video and audio input and output functions as claimed in claim 1, wherein the adapter unit includes a USB hub and a peripheral component expansion fast interface to peripheral component expansion interface bridge, the Both the TV signal receiving unit and the sound codec unit have a USB interface and are connected to the USB hub, so as to be connected to the high-speed serial interface connector unit through the USB hub, and to perform signal transmission with the portable electronic device; The graphics processing unit has a peripheral element expansion interface interface and is connected to the peripheral element expansion fast interface to peripheral element expansion interface bridge, so as to connect the high-speed serial interface connector unit through the peripheral element expansion fast interface to peripheral element expansion interface bridge , and carry out signal transmission with the portable electronic device. 4. The expansion device with TV video and audio input and output functions as claimed in claim 1, wherein the adapter unit includes a USB hub and a peripheral component expansion interface interface and is connected to the peripheral component expansion fast interface switch. Peripheral component expansion interface bridge, the TV signal receiving unit has a USB interface and is connected to the USB hub, so as to connect with the high-speed serial interface connector unit through the USB hub, and perform signal transmission with the portable electronic device; Both the graphics processing unit and the sound codec unit have a peripheral component expansion interface interface, and are connected to the peripheral component expansion fast interface to the peripheral component expansion interface bridge, so as to transfer the peripheral component expansion fast interface to the peripheral component expansion interface bridge through the peripheral component expansion fast interface The high-speed serial interface connector unit is connected to carry out signal transmission with the portable electronic device. 5. The expansion device with TV video and audio input and output functions as claimed in claim 1, wherein the adapter unit includes a USB hub and a peripheral component expansion fast interface to peripheral component expansion interface bridge, the The audio codec unit has a USB interface and is connected to the USB hub, so as to be connected to the high-speed serial interface connector unit via the USB hub, and to perform signal transmission with the portable electronic device; the graphic processing unit and the TV signal The receiving units all have a peripheral component expansion interface interface and are connected to the peripheral component expansion fast interface to peripheral component expansion interface bridge, so as to connect the high-speed serial interface connector unit through the peripheral component expansion fast interface to peripheral component expansion interface bridge , and carry out signal transmission with the portable electronic device. 6. The expansion device with TV video and audio input and output functions as claimed in claim 1, wherein said switching unit is a peripheral component expansion fast interface to peripheral component expansion interface bridge, and the TV signal receiving unit , the sound codec unit and the graphics processing unit all have a peripheral component expansion interface interface and connect the peripheral component expansion fast interface to the peripheral component expansion interface bridge, so as to transfer the peripheral component expansion fast interface to the peripheral component expansion interface bridge through the peripheral component expansion fast interface The high-speed serial interface connector unit is connected to carry out signal transmission with the portable electronic device. 7. The expansion device with TV video and audio input and output functions as claimed in claim 1, wherein the adapter unit includes a peripheral component expansion fast interface switch and a USB hub, the TV signal receiving unit, The sound codec units all have a USB interface and are connected to the USB hub, so as to be connected to the high-speed serial interface connector unit via the USB hub, and carry out signal transmission with the portable electronic device; the graphics processing unit has a The peripheral component expansion fast interface interface is connected to the peripheral component expansion fast interface switch, so as to connect the high-speed serial interface connector unit through the peripheral component expansion fast interface switch, and carry out signal transmission with the portable electronic device. 8. The expansion device with TV video and audio input and output functions as claimed in claim 1, wherein the adapter unit includes a high-speed serial interface switch and a USB hub, and the TV signal receiving unit has a The USB interface is connected to the USB hub, so as to be connected to the high-speed serial interface connector unit through the USB hub, and to perform signal transmission with the portable electronic device; the graphics processing unit and the sound codec unit both have a peripheral The component expansion fast interface interface is connected to the peripheral component expansion fast interface switch, so as to connect the high-speed serial interface connector unit through the peripheral component expansion fast interface switch, and carry out signal transmission with the portable electronic device. 9. The expansion device with TV video and audio input and output functions as claimed in claim 1, wherein the adapter unit includes a peripheral component expansion fast interface switch and a USB hub, and the sound codec unit has A USB interface and connected to the USB hub, so as to connect with the high-speed serial interface connector unit through the USB hub, and carry out signal transmission with the portable electronic device; the graphics processing unit and the TV signal receiving unit both have a The peripheral component expansion fast interface interface is connected to the peripheral component expansion fast interface switch, so as to connect the high-speed serial interface connector unit through the peripheral component expansion fast interface switch, and carry out signal transmission with the portable electronic device. 10. The expansion device with TV video and audio input and output functions as claimed in claim 1, wherein the switching unit is a peripheral component expansion fast interface switch, the TV signal receiving unit, the audio codec Both the unit and the graphics processing unit have a peripheral element expansion fast interface interface and are connected to the peripheral element expansion fast interface switch, so as to connect the high-speed serial interface connector unit through the peripheral element expansion fast interface switch, and to communicate with the peripheral element expansion fast interface switch. Portable electronic devices for signal transmission. 11. The expansion device with TV video and audio input and output functions as claimed in claim 1, wherein said graphics processing unit can be connected to an external display, so as to output the processed video signal to the external display. 12. The expansion device with TV video and audio input and output functions according to claim 1, wherein the audio codec unit can be connected to an external speaker, so as to output the processed audio signal to the external speaker . 13. The expansion device with TV video and audio input and output functions as claimed in claim 12, wherein the graphics processing unit includes a graphics processor, a random access memory and a TV signal output module, The random access memory is a data buffer corresponding to the graphics computing unit; the graphics computing unit converts the video data output by the portable electronic device into image frame data, and then sends it to the TV signal output module, the TV The signal output module converts the image signal into a signal specification suitable for the external display and outputs it. 14. The expansion device with TV video and audio input and output functions as claimed in claim 13, wherein said TV signal output module is a composite terminal TV encoder. 15. The expansion device with TV video and audio input and output functions as claimed in claim 13, wherein said TV signal output module is an S-terminal TV encoder. 16. The expansion device with TV video and audio input and output functions as claimed in claim 13, wherein said TV signal output module is a component TV encoder. 17. The expansion device with TV video and audio input and output functions as claimed in claim 13, wherein said TV signal output module is a digital video interface/high-definition multimedia interface transmitter. 18. The expansion device with TV video and audio input and output functions as claimed in claim 1, wherein said TV signal receiving unit is an analog TV signal receiver for receiving analog TV signals and converting the analog TV signals After digitization, it is sent to the portable electronic device through the adapter unit and the high-speed serial interface connector unit. 19. The expansion device with TV video and audio input and output functions as claimed in claim 1, wherein said TV signal receiving unit is a digital TV signal receiver for receiving digital TV signals and passing through the adapter The unit and the high-speed serial interface connector unit are transmitted to the portable electronic device. 20. The expansion device with TV video and audio input and output functions according to claim 1, characterized in that the high-speed serial interface connector unit is a connection interface conforming to the high-speed serial interface specification, and can be connected to the A high-speed serial interface slot of a portable electronic device.

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