CN100440947C - a multifunctional television - Google Patents

Abstract

The invention discloses a multifunctional TV set, which includes a video channel, an audio channel and a signal processor, wherein the signal processor is used to receive and process signals input by a radio frequency interface, and is connected to the video channel and the audio channel respectively; and, It also includes a streaming media controller that is respectively connected to the video channel and the audio channel and is used to process multifunctional digital data streams; it also includes an internal bus, and a controller, a USB interface, and a video decoder connected to each other through the internal bus and an audio decoder; through the internal bus, the controller reads the audio and video digital signals from the USB interface, and after being decoded by the video decoder and audio decoder, passes through the video channel and/or audio channel output. The multi-functional TV can be connected to devices with USB interfaces such as USB flash drive, mobile hard disk, digital camera, card reader, etc. through the USB interface, and realizes the decoding and playing of various compressed files such as MPEG1/MPEG2/MPEG4/JPEG/MP3.

Description

a multifunctional television

technical field

The invention relates to a multifunctional television set.

Background technique

With the development of technology, TVs have been endowed with many new functions through various technical means, so that TVs get rid of a single form of video image playback and become a comprehensive multi-function collection of multiple technologies. electrical appliances. However, the development of television technology has not stopped. For example, the development of digital technology has promoted the popularization of MP3 and digital cameras, resulting in a lot of MP3, JPEG, MPEG4 and other files that contain audio and video information. However, in many cases, we have to bake these files into the computer, and use the digital processing technology of the computer to read, decompress, decode, etc. the above-mentioned files before we can enjoy their rich content through playback, but such playback is restricted. The impact of the size of the computer monitor and the restriction of the sound quality have seriously affected people's aesthetics. However, for televisions, such as large-screen digital televisions, because they have high-definition picture quality and better sound quality, they can fully meet people's aesthetic needs. Especially there are more and more free audio and video resources on the computer network at present, such as MPEG4 files with its higher compression ratio and high-quality image quality, which makes people improve the functional requirements of TV sets. Hope to be able to Use the TV set to process the above-mentioned audio-visual files, for example, listen to MP3 through TV, see pictures in the digital camera and enjoy various movie files downloaded on the Internet.

Existing multi-function television generally comprises radio frequency interface 10, signal processor 11, the video channel 12 that is connected with described signal processor 11 and is used for outputting TV video and audio signal, audio channel 13 and special-purpose card reader 15, A card reader controller 16 and an audio-video signal converter 17 (referring to FIG. 1 ) connected between the card reader controller 16 and the video channel 12 and the audio channel 13. In the multifunctional TV shown in Fig. 1, the card reader controller 16 reads the audio and video digital signal from the corresponding digital card through the special card reader 15, and converts the signal into a corresponding audio and video signal through the audio and video signal converter 17. The audio and video signals are output through the video channel 12 and the audio channel 13. Apparently, the multi-function of this multifunctional television is to rely on special-purpose card reader 15, card-reader controller 16 and audio-video signal converter 17 to realize, for example the DVD optical drive (corresponding special-purpose card reader 15) that adopts in practice, CD-ROM drive Controller (corresponding to card reader controller 16) and video card (corresponding to audio-video signal converter 17) are just like this. The defect of such multifunctional television is that function is single, if want to read the information of other digital card, just must change or increase corresponding special-purpose card reader 15, card reader controller 16 and audio-video signal converter 17, for example want To read the audio and video digital signals stored in the HDD hard disk, the corresponding equipment must be replaced or added. It can be seen that the current multifunctional TV has poor function expansion capability and single function.

Application No. 03217725.9, the Chinese invention application titled "A Playback Device for Digital Photos and Media Streaming Files Based on TV" discloses a device for playing digital photos and streaming media files. Referring to Figure 11, the device includes A PCMCIA interface card slot device compatible with the flash memory card, a PCMCIA interface device capable of reading the stored information of the flash memory card, and auxiliary units such as a main CPU capable of decoding data files of the flash memory card. In actual use, a digital camera memory card or other flash memory card can be inserted directly or through a PCMCIA adapter card into the PCMCIA interface slot device, so that the media data stored on the digital camera or flash memory card can be played after being processed by the main CPU and other units. The biggest disadvantage of the above-mentioned device is that the realized functions are limited, inconvenient to use and poor in expandability. First of all, the device only supports PCMCIA interface equipment, and does not support the currently widely used USB standard equipment, making the USB equipment unusable; secondly, the PCMCIA interface slot is usually arranged inside the device, which is not convenient for the insertion and use of data cards ; Third, it is difficult for other standard plug-in standard devices to convert their signals into PCMCIA interface signals, thus affecting the scalability of the entire device.

Contents of the invention

The technical problem to be solved by the present invention is to provide a multifunctional TV set, which can generate streaming media files without external decoding and playing equipment, and the multifunctional TV set has good scalability .

Specifically, the multifunctional TV set provided by the invention includes:

A video channel, an audio channel and a signal processor, and a streaming media controller respectively connected to the video channel and the audio channel for processing multifunctional digital data streams;

The signal processor is used to receive and process the signal input by the radio frequency interface, and is connected to the video channel and the audio channel respectively;

The streaming media controller further includes:

an internal bus, and a controller, a USB interface, a video decoder and an audio decoder interconnected via the internal bus;

Through the internal bus, the controller outputs the audio and video digital signals read by the USB interface through the video channel and/or audio channel after being decoded by the video decoder and the audio decoder.

For the multifunctional television set, the media controller also includes a USBhost module that supports dual-way input, and the USB interface is connected to the USB host module through an internal bus, and then establishes communication with the video decoder and the USB host module through this module. Connection of audio codec.

On the basis of the above-mentioned multifunctional television structure, the media controller also includes a USB host module and a card reader supporting dual input, and the card reader and the USB interface are respectively connected to the USB host module, and through the module establishes connections with the video decoder and audio decoder.

On the basis of the above-mentioned multifunctional TV structure, the streaming media controller also includes a USB signal converter connected to the card reader through an internal bus, and the audio and video signals read in by the card reader are converted by the USB signal converter It is a USB signal, which is decoded by the video decoder and audio decoder under the control of the controller, and then output through the video channel and/or audio channel.

In the specific implementation of the multi-function television set, the streaming media controller further includes a memory connected to the internal bus for storing the control program provided to the controller and/or storing the controller processing The data.

The above-mentioned memory includes a random access memory and a FLASH memory, wherein the FLASH memory is used to store a control program, and the random access memory is used to store data processed by the controller.

In order to realize energy-saving control, the multifunctional TV set also includes a power controller connected between the power supply of the multifunctional TV set and the streaming media controller, and the control terminal of the power controller is connected to the signal processing The device is controlled by the signal processor to control the on-off of the power supply circuit of the streaming media controller through the power controller.

In addition, for any of the above-mentioned multifunctional televisions, the streaming media controller further includes a remote control receiver connected to the internal bus, for receiving remote control signals for controlling the multifunctional television.

In practice, the internal bus, as well as the controller, video decoder and audio decoder are integrated into one chip. More specifically, the chip adopts a model of AML3298; the USB interface adopts a chip of model TD0TG242LP.

Any of the above-mentioned multifunctional televisions can be one of digital televisions or analog televisions, therefore, the video channel, audio channel and signal processor are respectively the video channel, audio channel and audio channel for processing analog signals or digital signals. channels and signal processors.

Compared with the prior art, because the streaming media controller adopted in the present invention includes a USB interface, a video decoder and an audio decoder, the audio and video signals with a wide range of content can be input through the USB device, so that the multi-functional TV set has a relatively high performance. Multiple functions; further, the media stream controller of the present invention also includes a USB host that supports dual-way input, because the dual-way USB interface is used, in addition to providing a USB interface, another interface can be used as an expansion interface , the function of the card reader can be expanded, and the multi-functional expansion can be realized under the condition that the media streaming platform remains unchanged. Simultaneously, in the streaming media controller of the present invention, also can comprise USB signal converter, and then when the card reader does not possess USB signal conversion function, can convert the digital card into USB signal, has strengthened the function of multifunctional TV set. Functions, such as adding a hard disk card reader and a DVD card reader, only need to adjust the USB signal converter connected to the internal bus, this adjustment can be completed by adding a USB signal converter, because the USB signal The converter is directly connected to the internal bus, making this easy; it is easier to add only the data format or protocol that the USB signal converter can understand; further, if there are more widely used digital equipment, the capability expansion of the multi-functional television can be realized more easily through the increase of the data identification types of the USB signal converter. It can be seen that the present invention has better scalability.

Description of drawings

Fig. 1 is a block diagram of the first existing multifunctional television;

Fig. 2 is a block diagram of an embodiment of the multifunctional television of the present invention;

Fig. 3 is a block diagram of the streaming media controller used by the multi-function television shown in Fig. 2;

Fig. 4 is a kind of specific logic circuit diagram of embodiment of streaming media controller shown in Fig. 3;

Fig. 5 is a logical reference diagram of the AML3298 chip used in Fig. 3;

Fig. 6 is the connection diagram of 3AML3298 chip and TD0TG242LP chip in Fig. 3;

Figures 7 and 8 are the connection diagrams between AM3298 and RAM SDRAM and FLASH memory in Figure 3;

Figure 9 is a connection diagram between AML3298 and CS4334 in Figure 3;

Fig. 10 is a flow chart of a streaming media control playback process;

Fig. 11 is a block diagram of a second conventional multifunctional television.

Detailed ways

The technical solution provided by the present invention can enable the current multi-function television set in the family to realize decoding and playing of various video files stored in USB mobile devices, which is convenient for consumers to use digital cameras, USB flash drives and mobile hard drives more effectively. Make effective use of various free resources brought by the online world.

First refer to FIG. 2 , which is one of the block diagrams of multiple embodiments of the multi-function television provided by the present invention. The multi-functional TV described in Fig. 2 includes a video channel 12, an audio channel 13, a signal processor 11 and a radio frequency interface 10 for inputting ordinary TV signals, and these units are the characteristics that all existing TV sets have. However, the multi-function television set described in Fig. 2 also includes a streaming media controller 20 connected to the video channel 12 and the audio channel 13 respectively for processing multi-function digital data streams, the key of the controller 20 is to provide The data of audio and video media streams encapsulated in various formats or protocols is read in by the widely used USB device at present, so that the multifunctional television has more functions.

The streaming media controller 20 in this example can be understood with reference to FIG. 3 . It further comprises an internal bus 29, and a controller 21, a USB interface 23, a video decoder 26 and an audio decoder 27, a FLASH memory 24, a random access memory 25, a digital-to-analog converter 28, a USB A data converter 40 and a card reader 50 connected to the USB data converter 40 .

The card reader 50 can read the audio and video signals stored in the digital card matched with the card reader, that is, the media signal. The most common card readers are HDD hard disk reader, DVD reader, etc. In this example, the card reader can only recognize the digital signal card reader. The USB signal converter is used to convert the digital signal from the card reader into a signal in USB format. For different card readers, the only difference is that the output data format is different. Therefore, as long as the USB signal converter can recognize different data The format can increase the function of the multi-function TV, which is easily realized by software.

For this embodiment, if a USB device is connected to the USB interface, for example, a USB flash drive or an MP3 player, the controller 21 can read in the audio from the USB interface 23 through the internal bus. The video digital signal, after being decoded by the video decoder 26 and the audio decoder 27, is output through the video channel 12 and the audio channel 13. Of course, the corresponding video or audio signal can be output through only one of the channels in practice.

If a digital card is connected to the card reader 50, the digital signal in the non-USB format output by the card reader 50 will be converted into a USB signal through a USB signal converter, and will be converted into a USB signal under the control of the controller 21. After being decoded by the video decoder 26 and the audio decoder 27, it is output through the video channel 12 and (or) the audio channel 13.

In the present invention, in order to realize the expansion of multiple functions, a USB host capable of supporting dual input is set in the streaming media controller. The USB technical specification divides the two parties using USB for data transmission into two roles - Host and Slave, and data transmission can only occur between Host and Slave. At present, various basic USB mobile devices, such as U disk, digital camera with USB interface, etc., have integrated the USB Slave function role; it can be seen that if you want to obtain the data in the digital device with the USB interface of the USB Slave, The USB Host function module should be integrated in the system that needs to use the USB device, so that it has the ability to transmit data with the USB Slave device.

The USB host that supports two-way input, wherein one way input is provided to the USB interface of the multi-function TV, and the other way is used as an expansion port to expand the function of the card reader, and the card reader provides multiple digital card holders; The information in the digital card is converted into a signal in USB format through the transfer of the dedicated chip of the card reader (or through a USB signal converter), and then through the USB host, the decoding chip in the streaming media controller obtains the signal in the USB format , to decode and then realize streaming media playback. A card reader is arranged inside the multi-function TV set of the present invention to realize reading of digital cards; The USB signal converter. Fig. 4 is a logic circuit diagram of an embodiment of a streaming media controller.

The following is an example of the streaming media control playback process of an embodiment without the USB data converter 40 and the card reader 50 provided by the present invention. Refer to Figure 10 for this process. First, the streaming media controller 20 is initialized, and the background and operation function interface are displayed on the screen. At this time, the user can use the function keys on the TV to select the streaming media playback operation. Then the controller 21 detects and judges whether there is a USB device connected to the USB interface by the terminal of the USB interface. When there is a connected USB device, it continues to judge whether it supports the device. The protocol or format adopted by the stored data is realized. When the device is supported, digital audio and video signals are read from the USB device, otherwise the device is prompted not to be recognized and the device is released. After the digital audio and video signal is read in, it can be decoded and played according to its format. But this moment also can give the user the chance of choosing to play, for example, control can recognize and play the file of MP3, JPEG and WMA format, just can provide the player format selection for the user, the format player that the user selects to play is played.

It should be noted that the start of playback can be triggered by the USB interface, that is, when the USB interface is connected to a USB device, the USB interface sends a notification signal to the controller, and the signal can be transmitted through the interrupt signal line of the controller 21 Or pass through a certain data line, at this time the controller 21 will inquire whether a certain data line is received by a signal. After receiving the notification signal, the controller judges whether the device is supported, and if the device is supported, reads digital audio and video signals from the USB device, and then decodes and plays them.

The following is an example of the streaming media control playback process of an embodiment provided by the present invention with the USB data converter 40 and the card reader 50 . The difference between the process of this example and the above process is that the controller 21 detects the USB interface and the USB signal converter at the same time, and simultaneously judges whether there is a USB device connected to the USB interface or whether the card reader is connected to a digital device. Card, when there is a connected USB device and/or digital card, judge whether to support the device and/or digital card, when supporting the device and/or digital card, read from the USB device and/or digital card Digital audio and video signals. The above-mentioned read-in signal can be selected to play, or can be played at the same time. Of course, if there is a memory, it can also be stored and played.

Similarly, it can also be started by sending a signal to the controller 21 through a USB signal converter through a card reader connected to a USB device or a digital card. In this state, the USB interface and/or the USB signal converter send a signal to the The controllers send respective notification signals, and after receiving the notification signals, the controller judges whether the device and/or the digital card are supported, and when the device and/or the digital card are supported, the USB device and/or The digital card reads in digital audio and video signals. Of course, the above-mentioned read-in signal can also be selected to be played, or can be played at the same time, and of course, if there is a memory, it can also be stored and played.

In other embodiments of the present invention, the streaming media controller 21 does not have the FLASH memory 24, the random access memory 25 and the digital-to-analog converter 28, but in the embodiment shown in FIG. 3, these units are added. Among them, the FLASH memory is used to store the control program, which is convenient for the upgrade of the control program. For example, when adding media streams of other formats or protocols that can be played, the control program audit is required to be able to identify and play the media stream of this format; in this example Among them, the FLASH memory 24 is also used to store important and/or fixed parameters, such as protocol parameters, although these parameters can be stored together with the control program, or can be stored separately to facilitate upgrades; the random access memory 25 is used for The data processed by the controller is stored, that is, used like a memory in an ordinary computer.

It should be pointed out that the multifunctional TV set can be a current TV set for processing analog signals, or a TV set for processing digital signals, so that the video channel 12, the audio channel 13 and the signal processor 11 can be processed A video channel, an audio channel, and a signal processor for analog signal signals, or a video channel, audio channel, and signal processor for processing digital signal signals. In the embodiment shown in FIG. 3 , it belongs to the former case, therefore, the signal processor 11 is correspondingly a radio frequency signal processor 11 . But the audio decoder 27 in this example is a digital audio decoder, therefore, in this example, the streaming media controller 20 also includes a digital-to-analog converter 28 connected to the audio decoder 27 for converting the The digital audio signal output by the audio decoder is converted into an analog audio signal and output to the audio channel 13. The signal output by the video decoder in this example is an analog signal, so it can be directly connected to the video channel 12 . In another embodiment of the present invention, the signal output by the video decoder 26 is a digital signal, at this time, another digital-to-analog converter connected to the video decoder 26 is also set in the streaming media controller 20 (not shown in FIG. 3 ), for converting the digital video signal output by the video decoder into an analog video signal.

Considering the convenience of actual use, a traditional remote control receiving device is also provided in the embodiment shown in Fig. 3, and this device is directly set in the signal processing device 11 according to the traditional method, but in this example, for To facilitate the operation of the USB device connected to the USB interface 23, another remote control receiving device is also arranged in the streaming media controller, that is, the remote control receiver 22 connected to the internal bus 29 shown in Figure 3 , used to receive the media stream remote control signal from the remote controller 30 other than the TV to control the multi-function TV, the realization of the remote control function is parallel to the basic remote control part of the TV, and works at the same time. If it is specific to the chip in Figure 4, the remote control signal adopts the remote control signal from the TV, without additional remote control receiving device, the remote control signal is processed in the AML3298 to directly control the various functions of the AML3298. Since the remote control technology adopted by the TV set is a traditional technology, it will not be described in detail here.

The embodiment described in Fig. 3 has a feature, that is, the multifunctional television set shown in this example can be used as a common television set, and can also be used as a multifunctional television set. The streaming media controller and the equipment connected thereto work to save power, for this reason, in this example, a power controller 19 is also set between the multifunctional TV power supply 18 and the streaming media controller 20, Considering that the signal processor 11 belongs to the basic part, the control terminal of the power controller 19 is connected to the signal processor 11, and the signal processor 11 controls the power controller to control the streaming media. The controller 19 turns on and off the power supply circuit to determine whether the streaming media controller 20 works. The power controller 19 in this example adopts a relay, and a logic drive circuit may also be used. Since these technologies are extremely simple, they will not be described in detail here.

In the specific application of the present invention, it can be realized by using a chip with a higher degree of integration. For example, the internal bus 29, the controller 21, the video decoder 26 and the audio decoder 27 can be integrated into one chip. In practice, The higher the degree of integration, that is, the more integrated functional chips and the more complete the functions of the auxiliary circuit, the more beneficial it is to improve the performance of the multi-function TV and reduce the cost. For example, in this example, the integrated chip adopts a chip of model AML3298 from AMLOGIC; the USB interface adopts a chip of model 0TG242LP from TDI.

For specific implementation, refer to FIG. 4 , which is a logic circuit diagram of an embodiment of the streaming media controller 20 shown in FIG. 3 . Many specific examples can be derived from Fig. 4, and Fig. 3 only describes an example of specific implementation. The core function of the scheme shown in Fig. 4 is MPEG1/MPEG2/MPEG4 decoding, JPEG/MP3/WMA decoding, USB2.0 interface (in other embodiments of the present invention is not limited to above-mentioned mode), the reading of multiple digital cards. The AML3298 chip in this solution implements data decoding and audio and video encoding, and the 0TG242LP chip is a USB2.0 version interface chip.

The AML3298 is a fully integrated media processing chip, its logic refers to Figure 5, it can support many types of audio and video decoding applications, such as providing support for hard drives, digital cameras, MP3 players and other external digital consumer products . AML3298 integrates full-featured MPEG-1, MPEG-2 and MPEG-4 decoding functions. The controller is a built-in 32-bit CPU and two built-in AMASIC RISC processors with special equipment to process audio and video digital signals. At the same time, it provides a high-speed interface to support USB2.0 chip to connect popular USB devices, such as hard disk, USB flash drive, digital camera and MP3 player. A large number of GPI/O ports can be used to control the front channel display and other various tasks. The flash interface allows flash memory blocks to be shared by successive devices to reduce design cost. At the same time, the built-in main CPU and dedicated interface ease the design cost in various media applications.

AML3298 also integrates an NTSC/PAL TV encoder that supports S-Video, mixed video, YUV component and RGB. Video encoding supports high-quality progressive scan (480P/576P). Contrast enhancement, tone adjustment, video conversion and video interpolation, small picture and enlargement functions are also supported. In addition, 4 built-in DACS complete the video encoding, further reducing the cost of the system.

The built-in AMRIC RISC processor of AML3298 is designed to support advanced digital audio processing. The microcode engine supports all existing audio formats and is also powerful enough to meet new audio standards. Popular audio formats like Dolby AC-35.1, HDCD, MP-3 and WMA are also supported.

In Figure 4, the connection between AML3298 and OTG242LP refers to Figure 6. When an external USB device or data card is connected to the system, TD0TG242LP sends an interrupt signal to AML3298, AML3298 starts to work, reads data, and judges the type of peripheral device connected, such as a mobile hard disk or a digital camera, etc., and then passes TD0TG242LP reads the data in the external device.

In Figure 4, the connection between AM3298 and RAM SDRAM and FLASH memory refers to Figure 7 and Figure 8. Figure 7 uses a single 4M*16-bit memory SDRAM, and Figure 8 uses a 1M*16Bit flash memory. The decoder and the main CPU (built-in in AML3298) can be connected to the M1_SDRAM interface or the M2_SDRAM interface through the external synchronous random access memory SDRAM to realize decoding and processing MPEG video and audio data.

In Figure 4, the audio output adopts the CS4334 digital-to-analog conversion chip of CIRRUS LOGIC company to realize the digital-to-analog conversion of the audio, and the AML3298 controls the CS4334 through the internal bus to realize left and right channels, stereo and mute control. Refer to Figure 9 for the connection between AML3298 and CS4334.

In Fig. 4, UTC4558 is used as an audio frequency power amplifier.

The power supply method of the present invention will be described below. A special power supply board takes out the 18V AC voltage from the switching transformer of the TV power supply 18, rectifies and provides a stable 5V voltage output through the voltage stabilizing circuit whose signal is 278R05, and the 5V voltage is the input voltage of the power supply controller 19, so it is possible control voltage, when the streaming media module is not needed, the TV sends a control signal, and the 5V is disconnected; when it needs to work, the TV sends a control signal, and the 5V voltage is provided to the streaming media controller 20, allowing the streaming media controller 20 to work At the same time, reset the streaming media module. The advantages of doing this are: 1. Save the power consumption of the whole machine; 2. Extend the normal working time of the streaming media controller; 3. Prevent the streaming media controller from working uninterruptedly for a long time, resulting in a crash. The more specific power supply implementation is: 5V voltage is divided into two channels in the streaming media module, one channel supplies power to USB mobile devices, and the other channel, after voltage stabilization, outputs 1.8V and 3.3V voltages respectively for Flash memory, random Memory SDRAM and AML3298 and TG242LP work.

The following is an operation and use process of the multi-function television shown in the embodiment of the present invention. Press the remote control to switch the state of the TV to the state of streaming media through the software control of the TV, that is, turn on the power of the streaming media module and the audio and video channels. After inserting the USB device into the USB interface, the partition status of the USB device will be displayed. If there is no partition, it will directly display 5 options including picture, music, movie, audio and video integration and settings. Press "OK" in each level of menu to enter the next level of files or folders, the file name will be displayed in Chinese characters or English, then press "OK" to realize the playback of the above various files.

As can be seen from the above, utilize the scheme that the present invention provides, in conjunction with known technology, make the multi-function TV set that the present invention provides can realize multiple functions, for example watch JPEG picture, play and listen to MP3 and WMA music, and play and see MPEG1\MPEG2\MPEG4 etc. Movie files in protocol formats, such as *.MP3\.*WMA\*.JPG\*.JPEG\*.AVI\*.DIVX\*.MPG\*.DAT\*.VOB, etc.; support multiple USB protocols , such as Mass Storage and PTP protocols, can be connected to a variety of USB mobile devices, including: USB flash drives, mobile hard drives, digital cameras, card readers, and MP3 players. For the reading of various digital cards, the reading and playing of various digital cards (including SD\MMC\CF\XD\MS\MS pro\MS Pro Duo\RS MMC\Ms Duo\Mini SD\MD\SM)

The above descriptions are only preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be regarded as Be the protection scope of the present invention.

For the chip shown in Figure 4, the detailed functions and usage information of AML3298 refer to the "Aml3298 A/V Connectivity Processor User's Guide" (Aml3298 A/V Connectivity Processor User's Guide) published on August 5, 2004 by American Amlogic Corporation. ); For details of chips such as OTG242LP, please refer to the corresponding instructions.

Claims (10)

1, a kind of multi-function TV set comprises video channel, voice-grade channel and signal processor, it is characterized in that, described signal processor is used to receive and handle the signal of radio frequency interface input, and links to each other with voice-grade channel with video channel respectively; And

Also comprise the Streaming Media controller that is used to handle the multifunctional digital data flow that is connected respectively with described video channel, voice-grade channel;

Described Streaming Media controller comprises:

Internal bus, and by the interconnective controller of described internal bus, USB interface, Video Decoder and audio decoder;

By described internal bus, the audio frequency and video digital signal that described controller reads in described USB interface is behind described Video Decoder and audio decoder decode, by described video channel and/or voice-grade channel output.

2, multi-function TV set as claimed in claim 1, it is characterized in that: described media controller also comprises the USB host module of supporting dual input, described USB interface is connected to USB host module, and then sets up and being connected of described Video Decoder and audio decoder by this module.

3, multi-function TV set as claimed in claim 1, it is characterized in that: further comprise card reader in the described media controller, described card reader is connected with described USB host module with the USB interface form, and sets up and being connected of described Video Decoder and audio decoder by this module.

4, multi-function TV set as claimed in claim 3, it is characterized in that, described Streaming Media controller also comprises the usb signal transducer that is connected with card reader by internal bus, the audio-video signal that reads in by described card reader is converted to usb signal through the usb signal transducer, is sent to described Video Decoder and audio decoder decode under the control of described controller.

5, multi-function TV set as claimed in claim 4 is characterized in that, described Streaming Media controller also comprises the memory that is connected to described internal bus, is used to store the control program that offers described controller and/or stores the data that described controller is handled.

6, multi-function TV set as claimed in claim 5, it is characterized in that described memory comprises random asccess memory and FLASH memory, wherein, described FLASH memory is used for storage control program, and described random asccess memory is used to store the data that described controller is handled.

7, one of them multi-function TV set of stating as claim 2 to 6, it is characterized in that, also comprise the power-supply controller of electric that is connected between described multi-function TV set power supply and the described Streaming Media controller, the control end of described power-supply controller of electric connects described signal processor, by the break-make of described signal processor control by the described Streaming Media controller of described power controller controls power supply circuits.

8, multi-function TV set as claimed in claim 7 is characterized in that, described Streaming Media controller also comprises the receiver of remote-control sytem that is connected to described internal bus, is used to receive the remote signal of the described multi-function TV set of control.

9, multi-function TV set as claimed in claim 8 is characterized in that, described internal bus, and controller, Video Decoder and audio decoder are integrated into a chip.

10, multi-function TV set as claimed in claim 9 is characterized in that, it is the chip of AML3298 that described chip adopts model.

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