CN101989247B - Data transmission system - Google Patents

Abstract

The invention discloses a data transmission system, which comprises an electronic device and an expander. The electronic device is provided with a first controller, a second controller, a plurality of first data transmission ports and a plurality of second data transmission ports. The first data transmission port and the second data transmission port are the same data transmission port. The expander is provided with a first connecting terminal, a second connecting terminal, a first device expansion interface electrically connected with the first connecting terminal and a second device expansion interface electrically connected with the second connecting terminal. The first connecting terminal and the second connecting terminal are the same type of connecting terminal. By arranging the data transmission system, the devices arranged on the expansion interfaces of the devices can transmit data to the electronic device through the corresponding independent data transmission channels respectively so as to obtain enough data transmission frequency bands.

Description

data transmission system

technical field

The present invention relates to a data transmission system, in particular to a data transmission system which can provide sufficient frequency band to transmit data stably.

Background technique

In recent years, the advancement of semiconductor technology and the substantial reduction in cost have led to portable information hosts, such as notebook computers, ultra-portable computers (Ultra Mobile PCs), personal digital assistants (PDAs), portable digital TVs (Mobile TV), multimedia player (Media Player) and global satellite positioning system (GPS) and other products are increasingly common. However, due to the limitation that the product must have a certain degree of portability, the weight, volume and other restrictions of the current design make it impossible to use the functions of the desktop product. In order to overcome the above-mentioned problems, it is necessary to use a function expansion base to provide external connections to existing standard screens, data storage devices, wired and wireless communication devices, input operation interfaces or audio interfaces, etc., so as to fully exert its functions. However, the general expansion base must be used with a dedicated portable host, which is inconvenient. To overcome this problem, relevant practitioners have developed an expansion base that utilizes a universal serial bus (USB) to transmit data to solve the compatibility problem.

However, the expansion base of this known technology has the following problems: when the display information is transmitted from the portable information device to the expansion base, the display screen electrically connected to the expansion base can be converted through the signal conversion of the display conversion interface. When displaying the data of the portable information device, or setting the wireless network module on the expansion base, through the signal conversion of the network conversion interface to provide the wireless transmission function of the portable information device, most of the transmission frequency band will be occupied . If it is necessary to simultaneously transmit audio data, input operation data, or store data in an external storage device connected to the docking station, the lack of frequency band may easily cause data transmission delay, resulting in poor performance of the conventional docking station.

Contents of the invention

In view of the above-mentioned problems of the known technology, the purpose of the present invention is to provide a data transmission system to solve the problem of insufficient frequency band when the docking station of the known technology is connected to multiple peripheral devices and needs to transmit data at the same time.

According to the object of the present invention, a data transmission system is provided, including an electronic device and an expander. The electronic device has a first controller, a second controller and multiple data transmission port groups. Each data transmission port group has a first data transmission port and a second data transmission port, and the first data transmission port and the second data transmission port are the same data transmission port. The expander has a first connection terminal, a second connection terminal, a first device expansion interface and a second device expansion interface, and the first connection terminal and the second connection terminal are the same connection terminal. The first device expansion interface is electrically connected to the first connection terminal. The second device expansion interface is electrically connected to the second connection terminal. Wherein, when the first connection terminal and the second connection terminal are respectively electrically connected to the first data transmission port and the second data transmission port, the expansion interface of the first device establishes a first data transmission channel with the first controller, and the second device The expansion interface establishes a second data transmission channel with the second controller, and the first data transmission channel and the second data transmission channel respectively have independent transmission frequency bands.

Among them, the first controller is enhanced host controller interface (Enhanced Host Controller Interface, EHCI) 2.0 or IEEE1394 controller interface, the second controller is enhanced host controller interface (Enhanced Host Controller Interface, EHCI) 2.0 or IEEE1394 control interface.

Wherein, the first data transmission port is a universal serial bus connection port (USB) or an IEEE1394 connection port, and the second data transmission port is correspondingly the same universal serial bus connection port (USB) or IEEE1394 connection port.

Wherein, the first connection terminal is a Universal Serial Bus (USB) connection terminal or an IEEE1394 connection terminal, and the second connection terminal is correspondingly the same Universal Serial Bus (USB) connection terminal or an IEEE1394 connection terminal.

Wherein, the first device expansion interface is an audio effect input/output conversion interface, a network conversion interface, a wireless network conversion interface, a universal serial bus expansion interface or an IEEE1394 expansion interface for connecting corresponding devices.

Wherein, the second device expansion interface is a display conversion interface or a network conversion interface.

Wherein, the first connecting terminal and the second connecting terminal can be arranged in an adjoining manner or in a stacking manner.

As mentioned above, according to the data transmission system of the present invention, the first data transmission channel can be established with the first controller through the first device expansion interface, and the second data transmission channel can be established between the second device expansion interface and the second controller, thereby Increase the transmission frequency band of the extender to improve the performance of the extender.

Description of drawings

The above and other objects and features of the present invention will become clearer through the following description in conjunction with the accompanying drawings, wherein:

Fig. 1 is the schematic diagram of the embodiment of data transmission system of the present invention;

Fig. 2 is the first schematic diagram of the data transmission system expander of the present invention; and

FIG. 3 is a second schematic diagram of the data transmission system expander of the present invention.

Description of main symbols: 11 is an electronic device; 110 is a data transmission port group; 111a is a first controller; 111b is a second controller; 111c is a first data transmission port; 111d is a second data transmission port; 12 is an expander ; 121 is the first connection terminal; 122 is the second connection terminal; 123 is the first device expansion interface; and 124 is the second device expansion interface.

Detailed ways

FIG. 2 is a block diagram of an embodiment of the data transmission system of the present invention. The data transmission system 1 includes an electronic device 11 and an expander 12 .

The electronic device 11 may be a notebook computer, an ultra-mobile computer (Ultra Mobile PC), a personal digital assistant (PDA), a portable digital television (Mobile TV), or a multimedia player (Mediaplayer). Wherein, the electronic device 11 has a first controller 111 a, a second controller 111 b, and a plurality of data transmission port groups 110 . Each data transmission port group 110 has a first data transmission port 111c and a second data transmission port 111d. The first controller 111a and the second controller 111b can be Enhanced Host Controller Interface (Enhanced Host Controller Interface, EHCI) 2.0 or IEEE 1394 controller interface, and the first data output port 111c can be a universal serial bus connection port or The IEEE1394 connection port and the second data transmission port 111d may correspond to the same universal serial bus connection port or IEEE1394 connection port. Wherein, each of the first data transmission port 111c and the second data transmission port 111d is electrically connected to the first controller 111a and the second controller 111b respectively. In addition, the first controller 111a and the second controller 111b are the same controller interface.

The expander 12 has a first connection terminal 121 , a second connection terminal 122 , a first device expansion interface 123 and a second device expansion interface 124 . The first device expansion interface 123 is electrically connected to the first connecting terminal 121 . The second device expansion interface 124 is electrically connected to the second connection terminal 122 . Wherein, the first connection terminal 121 may be a Universal Serial Bus (USB) connection terminal or an IEEE1394 connection terminal, and the second connection terminal 122 may be correspondingly the same Universal Serial Bus (USB) connection terminal or an IEEE1394 connection terminal. The first device expansion interface 123 can be used for connection of devices with lower transmission bandwidth requirements. For example, the first device expansion interface 123 may be an audio input conversion interface, an audio output conversion interface, a network conversion interface, a universal serial bus expansion interface or an IEEE1394 expansion interface. The audio input connection conversion interface can be connected to a microphone; the audio output conversion interface can be connected to a speaker or earphone; the network conversion interface can be plugged and connected with a network cable; There are multiple IEEE1394 connection ports, which can be used for storage devices, such as external hard drives or card readers, or electronic devices such as network cameras. The second device expansion interface 124 can be used for connecting devices with higher transmission bandwidth requirements. For example, the second device expansion interface 124 may be a display interface connection port conversion interface for connection to a display screen. The second device expansion interface 124 can also be a network conversion interface, especially a network conversion interface using high transmission rate standards such as 802.11n and 802.11b.

When the expander 12 is to be used, and the first connection terminal 121 and the second connection terminal 122 are respectively inserted into the first data transmission port 111c and the second data transmission port 111d, the first device expansion interface 123 is connected to the first controller. 111a is electrically connected to establish a first data transmission channel, and the second device expansion interface 124 is electrically connected to the second controller 111b to establish a second data transmission channel. By electrically connecting the connecting terminals individually to the corresponding data transmission ports, an independent data transmission channel can be established between the corresponding device expansion interface and the controller.

When both the first device expansion interface 123 and the second device expansion interface 124 are electrically connected to corresponding electronic devices, for example, the first device expansion interface 123 is inserted into an external hard disk, and the second device expansion interface 124 is inserted into a display screen. For example, when a user wants to play video information stored on an external hard disk, the video information is transmitted to the first controller 111a through the first data transmission channel, and then the video information is transmitted to the first controller 111a through the peripheral device controller 111. The processing unit (not shown) of the electronic device 11 performs decoding processing, and then transmits the data to the display screen for playback through the second data transmission channel. Since the first data transmission channel and the second data transmission channel can operate independently, the transmission frequency band of the overall system can be increased, so when the user watches the video, he will not feel the picture or sound effect delay, and the feeling of unsmooth playback.

In addition, the expander 12 can also be equipped with a wireless network transceiver module (not shown), which can be electrically connected to the first connection terminal 121 and transmit data to the electronic device 11 through the first data transmission channel, so that the electronic device 11 can expand The device 12 can send and receive data through the wireless network.

In addition, the first connection terminal 121 and the second connection terminal 122 of the expander 12 can be arranged adjacently (adjacent) or stacked (stack), as shown in FIG. 2 and FIG. 3, and the first transmission of the electronic device 11 The data port 111c and the second transmission data port 111d are also arranged in a contiguous manner or in a stacked manner corresponding to the arrangement manner of the first connection terminal 121 and the second connection terminal 122 . When the electronic device has a plurality of first transmission data ports 111c and second transmission data ports 111d, the above arrangement can be used to prevent the user from inserting them incorrectly, and avoid causing the first connection terminal 121 and the second connection terminal 122 to be connected to the same port. A controller can not play its due effect. In addition, each group of data transmission ports 110 can also be distinguished by different colors or different printing methods, so that it is convenient for users to judge the relative positions of each connection terminal of the expander 12 and the data transmission port group 110 so as to correctly connect the expander 12 and the electronic device. 11.

To sum up, the data transmission system of the present invention can increase the transmission frequency band by establishing independent data transmission channels with two frequency bands between the expander and the electronic device, thereby improving the data transmission efficiency of the expander.

The above description is only illustrative, not restrictive. Any equivalent modifications or changes made without departing from the spirit and scope of the present invention shall be included in the scope of the appended claims.

Claims (11)

1. A data transmission system comprising: Electronic device, having: first controller; second controller; a plurality of first data transmission ports electrically connected to the first controller; and a plurality of second data transmission ports electrically connected to the second controller, and the second data transmission ports are the same type of data transmission ports as the first data transmission ports; and Expander, with: a first connection terminal; a second connection terminal, the second connection terminal is the same type of connection terminal as the first connection terminal; the first device expansion interface is electrically connected to the first connection terminal; and The second device expansion interface is electrically connected to the second connection terminal; Wherein, when the first connection terminal and the second connection terminal are respectively electrically connected to the first data transmission port and the second data transmission port, the first device expansion interface is connected to the first The controller establishes a first data transmission channel, the second device expansion interface establishes a second data transmission channel with the second controller, and the first data transmission channel and the second data transmission channel have independent Transmission band. 2. The data transmission system as claimed in claim 1, wherein the second device expansion interface is a display conversion interface or a network conversion interface. 3. The data transmission system according to claim 1 or 2, wherein the first controller is an Enhanced Host Controller Interface (Enhanced Host Controller Interface, EHCI) 2.0 or IEEE1394 controller interface, and the second controller It is Enhanced Host Controller Interface (EHCI) 2.0 or IEEE 1394 controller interface. 4. The data transmission system as claimed in claim 1, wherein said first device expansion interface is an audio conversion interface, a network conversion interface, a universal serial bus (USB) expansion interface or an IEEE 1394 expansion interface, to connect the corresponding device. 5. The data transmission system as claimed in claim 1, wherein said first data transmission port is a universal serial bus connection port (USB) or an IEEE 1394 connection port, and said second data transmission port is correspondingly the same The Universal Serial Bus connection port (USB) or the IEEE 1394 connection port. 6. The data transmission system as claimed in claim 1, wherein said first connection terminal is a Universal Serial Bus (USB) connection terminal or an IEEE 1394 connection terminal, and said second connection terminal is correspondingly the same said universal Serial bus (USB) connection terminal or the IEEE 1394 connection terminal. 7. The data transmission system as claimed in claim 1, wherein the first connection terminal and the second connection terminal are arranged adjacently. 8. The data transmission system according to claim 7, wherein the first data transmission port and the second data transmission port correspond to the first connection terminal and the second connection terminal in an adjacent (adjacent) manner set up. 9. The data transmission system as claimed in claim 1, wherein the first connection terminal and the second connection terminal are arranged in a stack. 10. The data transmission system according to claim 9, wherein the first data transmission port and the second data transmission port correspond to the first connection terminal and the second connection terminal in a stacked manner (stack) set. 11. The data transmission system as claimed in claim 1, wherein each group of the plurality of first data transmission ports and each group of the plurality of second data transmission ports form a data transmission port group. the

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