CN201122286Y - Interface card and adapter thereof - Google Patents

Abstract

The utility model provides an interface card and switching element thereof, wherein switching element is used for linking the multimedia processing device who is equipped with the interface card, switching element's first port is used for receiving an audio signal from multimedia processing device's outside, switching element's second port can supply the output terminal of electric connection interface card, and, the switching circuit who is coupled between first port and second port provides the switching function, make audio signal can be in order to input to the interface card through second port and output terminal, it and then outputs the multimedia data that is formed by audio signal and image data conversion.

Description

Interface card and its transition components

This case is a divisional application of 200620121198.X titled "Interface Card and Its Transition Components". The filing date of the original application is: July 25, 2006.

technical field

The utility model provides an interface card and an adapter element thereof, in particular to an adapter element for inputting a sound source signal to the interface card from outside the multimedia processing device and the interface card.

Background technique

With the advancement of science and technology, the performance and playback quality of various multimedia playback devices have improved, and the audio-visual methods of digital home theater audio and high-resolution video and video are the main development trends. With the improvement of the functions of multimedia playback equipment, the display interface card of the playback processing device used in conjunction with it is usually equipped with several connection interfaces to electrically connect the playback equipment with corresponding connection interfaces. The connection interfaces configured by the above interface cards usually include RS-232 interface , Digital Video Interface (DVI) and S-Vide terminals, so that it can be used with traditional screens (such as CRT screens), LCD screens, digital high-definition TVs or other playback devices.

In addition, in order to implement high-speed, high-quality digital data transmission, and to meet the needs of simultaneously transmitting audio-visual data and reducing the interface volume, a high-definition multimedia interface (High-Definition Multimedia Interface, HDMI) has been developed in recent years. The video interface is developed. Compared with the digital video interface, the high-definition multimedia interface connector is more miniaturized, and only one cable is needed to add the function of supporting multi-channel audio. Therefore, for multimedia with audio and video playback functions The number of playback devices and display interface cards equipped with high-quality multimedia interfaces and corresponding processing chips has gradually increased. At present, the display interface card is usually equipped with SPDIF pins, so that the audio signal can be received from the inside of the processing device provided with the display interface card, so that the processing chip can convert the audio signal and the image data provided by the processing device into multimedia data, and then pass through the high-level A high-quality multimedia interface is used to provide multimedia data to a multimedia playback device.

However, the above-mentioned display interface card is usually connected to the motherboard of the processing device through the PCI-E or AGP interface to obtain image data. Connected to the motherboard, it is easy to forget that the display interface card has SPDIF pins and is not connected to it. This omission is not easy to detect when the assembly is completed and tested, so that before using the high-quality multimedia interface to enjoy audio-visual effects, it needs to be disassembled first. The shell of the processing device is connected to the SPDIF pin, which is extremely inconvenient to use.

Therefore, in view of the above problems, the creator proposes an interface card and its adapter components in the present utility model as a solution and basis for the above problems based on many practical experiences and topic discussions.

Utility model content

The main purpose of this utility model is to provide an interface card and its adapter components, especially about inputting the audio source signal from the outside of the multimedia processing device and its interface card to the interface card, so as to solve the problem that the internal audio signal line is not connected. Inconvenience caused by re-installation and disassembly of the housing of the multimedia processing device.

The reason is that, in order to achieve the above-mentioned purpose, according to the adapter element of the present invention, it is used to be plugged into a multimedia processing device, and includes a first connection port, a second connection port and a transfer circuit, wherein the first connection port can be Receive an audio source signal from the outside of the multimedia processing device, the second connection port can be connected to the input and output terminals of the interface card configured by the multimedia processing device, and the first end and the second end of the switching circuit are respectively coupled to the first connection port And the second connection port, through the corresponding relationship between the pins of the first end and the second end to provide a transfer function, so that the audio signal can be input to the interface card through the second connection port and the input and output terminals, so that it can be automatically The multimedia processing device externally inputs the audio source signal to the interface card to achieve the effect of convenient use. Furthermore, the I/O terminal is usually a permanent terminal of the interface card, such as an S-Video terminal, so there is no need to add components of the interface card.

As mentioned above, because the interface card according to the present utility model includes a high-definition multimedia interface and a processing unit in addition to the input and output terminals, therefore, when the interface card receives the audio source signal and receives an image data from the inside of the multimedia processing device The processing unit can process the audio signal and image data to generate multimedia data, and then electrically connect the multimedia playback device through the high-quality multimedia interface, so that the multimedia playback device can provide high-quality audio-visual effects.

According to the utility model, the audio source signal outside the multimedia processing device and its interface card can be input to the interface card. When the internal audio source signal line is not connected, there is no need to reassemble and disassemble the shell of the multimedia processing device.

Description of drawings

FIG. 1 is a schematic diagram of the appearance of the adapter element disclosed in the present invention;

2 is a schematic block diagram of the adapter element disclosed in the present invention and the multimedia processing device provided with the interface card;

FIG. 3 is a schematic diagram of the pins of the first connection port disclosed in the present invention;

FIG. 4 is a schematic diagram of the pins of the second connection port disclosed in the present invention;

FIG. 5 is the corresponding relationship between the pins disclosed in the present invention;

FIG. 6 is a schematic block diagram of the interface card disclosed in the present invention.

Description of figure number:

1: transfer element; 11: transfer circuit;

111: first end; 112: second end;

113: shell; 12: first connection port;

13: second connection port; 2: multimedia processing device;

21: Processor; 211: Image data;

212: audio signal; 22: interface card;

221: input/output terminal; 23: audio output terminal;

31: conductive core; 32 and 42: conductive shell;

41: conductive pin group;

411, 412, 413, 414, 415, 416 and 417: conductive pins;

61: processing unit; 611: multimedia data;

62: high-definition multimedia interface; 63: electrical pin.

Detailed ways

In order to make the above-mentioned purposes, features, and advantages of the present utility model more obvious and easy to understand, a preferred embodiment of the present utility model will be cited below in detail in conjunction with the accompanying drawings, in which the same elements Description will be made with the same reference numerals.

Please refer to FIG. 1 and FIG. 2 together. FIG. 1 is a schematic diagram of the appearance of the adapter element disclosed in the present invention, and FIG. 2 is a schematic block diagram of the adapter element disclosed in the present invention and a multimedia processing device with an interface card. . As shown in Figure 1, the switching element 1 includes a switching circuit 11, a first connecting port 12 and a second connecting port 13, the switching circuit 11 has a first end 111 and a second end 112, which are respectively coupled to the first The connection port 12 and the second connection port 13 , the switching circuit 11 are covered by a casing 113 , and the first connection port 12 and the second connection port 13 are exposed on opposite sides of the casing 113 . As shown in Figure 2, the multimedia processing device 2 includes a processor 21, an interface card 22 and an audio source output terminal 23, the processor 21 can generate image data 211 and audio source signal 212, and provide the image data 211 to the interface card 22, and The audio signal 212 is provided to the audio output terminal 23 .

As mentioned above, the first connection port 12 can be used to electrically connect the audio output terminal 23 of the multimedia processing device 2 to receive the audio signal 212 . The second connection port 13 can be connected to the I/O terminal 221 of the interface card 22 for power supply. The switch circuit 11 provides a switch function through the corresponding relationship between the pins of the first end 111 and the second end 112, so that the audio signal 212 can be input to the interface card 22 through the second connection port 13 and the input/output terminal 221 middle. Through the above, the purpose of providing the audio source signal 212 to the interface card 22 from outside the multimedia processing device 2 is achieved.

The above-mentioned interface card 22 preferably has a high-quality multimedia interface. Therefore, the interface card 22 can transmit the audio source signal 212 and the image data 211 to the multimedia playback device, and the interface card 22 is usually a display card. The audio source signal 212 is generally a signal conforming to SPDIF format such as PCM, AC3 or DTS.

Continue, please refer to Figure 3 to Figure 5, Figure 3 is a schematic diagram of the pins of the first connecting port disclosed in the present invention, Figure 4 is a schematic diagram of the pins of the second connecting port disclosed in the present invention, Figure 5 is the schematic diagram of the pins of the first connecting port disclosed in the present invention Corresponding relationship of the pins disclosed in the utility model.

As shown in Figure 3, the first connection port 12 has a conductive core 31 and a conductive shell 32 surrounding the conductive core 31, both of which are isolated by a non-conductive medium, thereby complying with the structure of transmitting SPDIF format signals for outputting with a sound source The terminal 23 transmits the audio source signal 212.

As shown in Figure 4, the inside of the second connecting port 13 is provided with at least seven conductive pin groups 41, and its conductive pins 411, 412, 413, 414, 415, 416 and 417 are arranged according to the order from top to bottom, from left to right. right order. The inside of the second connection port 13 is further provided with a conductive shell 42 which surrounds the conductive pin set 41 but does not contact it. In this way, the second connection port 13 can be used as a plug to be plugged into the I/O terminal 221, which is usually an image output slot, such as an S-Video slot, and the I/O terminal 221 is plugged with an adapter element. After 1, it can be used as a slot for inputting SPDIF format signals.

The conductive core 31 and the conductive shell 32 of the first connection port 12 and the conductive pin group 41 and the conductive shell 42 of the second connection port 13 are respectively coupled with the first end 111 and the second end 112 of the switching circuit 11, as shown in FIG. 5, the conductive core 31 of the first connection port 12 and the conductive pin 412 of the second connection port 13 are conducted through the pin correspondence between the first end 111 and the second end 112, and the first connection port 12 The conductive shell 32 of the second connection port 13 is connected to the conductive pin 414 and the conductive shell 42 . Through the above, the audio signal 212 can be input to the interface card 22 through the adapter component 1 .

Furthermore, please refer to FIG. 6, and please refer to FIG. 2 together, which is a schematic block diagram of the interface card disclosed by the present utility model. A data transmission medium between playback devices. In the figure, the interface card 22 includes an I/O terminal 221, an electrical pin 63, a processing unit 61 and a high-quality multimedia interface 62, wherein the I/O terminal 221 and the electrical pin 63 are used to receive the multimedia processing device 2 audio source signal 212, but the input/output terminal 221 receives the audio source signal 212 from the outside of the multimedia processing device 2, and the electrical pin 63 receives the audio source signal 212 from the interior of the multimedia processing device 2. Therefore, the input/output terminal 221 and the electrical The pin 63 can choose one to use. The processing unit 61 usually has a plurality of processing chips, which can receive and process the image data 211 and the audio signal 212 for generating a multimedia data 611 . The high-definition multimedia interface 62 is used to output multimedia data 611 to a multimedia playback device with a corresponding interface, and the transmission format of the high-definition multimedia interface 62 is a known technology, which is not the focus of the present invention, so it will not be described again. Furthermore, the I/O terminal 221 is usually an S-Video terminal or other image output terminals permanently installed on the interface card 22, and by utilizing the electrical structure of such an S-Video terminal or other image output terminals permanently installed on the interface card 22, It usually has an unused pin, which is used as a pin for inputting the audio signal 212 to save components required by the interface card 22 .

The above descriptions are illustrative only, not restrictive. Any equivalent modification or change made without departing from the spirit and scope of the present utility model shall be included in the scope of rights of the present utility model.

Claims (4)

1. an interface card is located in the multimedia processing apparatus, transmits the signal between this multimedia processing apparatus and a multimedia play equipment, it is characterized in that, this interface card comprises:

One output/input terminal, a processing unit and a high picture quantity multimedia interface, second Port of wherein said output/input terminal one end and switching element electrically connects, and the other end is connected with processing unit; Described multimedia interface one end is connected with processing unit, and the other end and multimedia play equipment electrically connect.

2. interface card as claimed in claim 1 is characterized in that, this interface card is a display card.

3. interface card as claimed in claim 1 is characterized in that, this output/input terminal is the slot that image output and one meets the signal input of SPDIF form, and the corresponding plug of can pegging graft is exported this image data or imported this sound source signal.

4. interface card as claimed in claim 1 is characterized in that, this interface card more comprises at least one electrical pin, receives the sound source signal of this multimedia processing apparatus inside.

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