TW504932B - Video conference system of wireless network browsing device and its implementation method - Google Patents

Abstract

There are provided a video conference system of wireless network browsing device and its implementation method. A wireless network browsing device is provided at one side of each user for coupling to an image capturing device, a voice capturing device, an image output device and a voice output device, wherein the wireless network browsing device includes a first video processing unit, a second video processing unit and a voice encoding/decoding unit. The other sides of the users to be connected perform a video conference with one another by the wireless network browsing devices through a wireless local area network (WLAN).

Description

504932

V. Description of the Invention (1) [Field of the Invention] The present invention relates to a video conference system and a method for implementing the same, and particularly to a video conference system for a wireless internet machine and a method for implementing the same.背景 [Background of the invention] Modern communication and communication technology are changing rapidly, which greatly shortens the distance in space. The birth of the video conference system allows us to bid farewell to the era of catching the wind and catching the shadows, and to reach a new world with sound and shadows. The advantages of the video conference system not only can improve the efficiency of the office, shorten the decision-making time, but also improve the timeliness, avoid the waste of lengthy traffic time, greatly shorten the distance, and enter into opportunities for communication with each other; whether it is a comprehensive decree or global Sex education training and technical seminars, etc., video conferences have greatly improved the efficiency of enterprises. Simply put, the video conference system is a video conference system 10 that uses the same protocol standard as itself and the other party. It uses compression and decompression technology to bi-directionally transmit data, video images and sound, and this transmission method is through the data line 20 Such as Integrated Services Digital Network (ISDN), Asynchronous Transfer Mode (ATM), Public Switched Telephone Network (PSTN), Ti line or satellite, etc. Transmission media transmission (as shown in Figure 丨), so that the video and sound at this end will appear on the other end of the TV 30, which is called a video conference system. However, ‘some video conferencing systems are too expensive to build and must be implemented with a computer or TV. On the other hand, the location of the video conference is fixed because it ’s connected to the Internet through a cable’.

504932 Description of the invention (2) The need to make it available anywhere Therefore, a low-cost and wireless Internet access can be an issue of concern. 8. Overview and purpose of the invention of conducting video conference] A video conference system for wireless / wireless internet machines, a sound processing unit, for receiving a video and audio signal. /-First-the audio signal is separated into a voice signal and-video ^ [, Encode the data, separate the material into a voice-encoded signal and an image, and decompute the encoded signal or encode the image :: code signal, and use the video encoding / decoding unit to receive The voice signal ^ is decompressed;-the voice is compressed or the section / speech encoded signal is a second video processing unit, the compressed image signal is decompressed with α = ± code signal and The speech encoding / decoding means processing the speech signal after the compression, or receiving the image encoding signal after decompression from the edge of the first video clip, and from the speech encoding / decoding. Wu Yizhi decompresses the voice coded signal, and outputs the compressed today ,, early, and the voice signal to a wireless local area network, and outputs the subsequent image coded signal and the voice coded signal Output to—output two =:

△ Use the wireless Internet machine to perform input at the playback end and turn out at the transmission end ^^. I. With regard to the detailed content and technology of the present invention, the drawings are described in conjunction with the drawings, such as the detailed description of the invention.] The present invention proposes a video conference system for wireless Internet access and its implementation.

Page 5 504932 V. Description of the invention (3) Method 'Among them, Fig. 2 is a structural diagram of the video conference system of the present invention. One end of any user has a wireless Internet access device 1 Q 0 for coupling an image capture. Device 10 2, a sound capture device i 0 4 ·, an image output device 丨 〇6 and a loud sound output device 108, wherein the wireless Internet access device 100 includes a first audio and video processing unit 110 A second audio and video processing unit 120 and a voice encoding / decoding unit 130; through a wireless local area network (WLAN) 14o, the other end of the user to be connected is performed by the wireless Internet machine 丨 〇〇 Video conference with each other. The video conference of the wireless Internet machine 100 mentioned in the present invention is mainly to output signals (including video and voice signals) from the user at the other end of the wireless local area network (WLAN) 140, and capture the user's own video The video and voice signals input by the device 丄 ^ and the sound capture device 1 〇 4 are processed separately through the video processing unit 1 1 0, because in order to meet the real-time video Playback effects, especially output ^ image signal to the second audio and video processing unit 1 2 0, to further process the compression / decompression operation of scene / signal; and turn out the voice signal to the speech editor / ^ image stone unit 1 3 0 And then input it to the second audio and video processing unit 丨 2 〇, in order to achieve scene I = synchronous and timely playback and delivery effect. ~ Sound Please continue to refer to FIG. 3, which is a system architecture diagram of the wireless Internet machine of the present invention. The above-mentioned first audio and video processing unit 1 1 Q can receive, input, and output data in CCIR 6 0 1/6 5 6 standard 8-bit (blt) data ^ 5 (D ata) format. A digital camera outputs a CC I r ^ formula, eight bits (blt), 4: 2: 2 YUV data (Data) as an example, when 6j each-the audio and video processing unit 1 1 0 receives a complete audio and video signal or a Coding ^ 5

504932 V. Description of the invention (4) :, ί = Γ will? System image coding standard (H.26i «· 263), which is compressed (encoded) and decompressed (decoded) by two, and then stored in -system memory ^ 1 Γ 6 through one R two video processing unit WO; ;: ^ B ^ ^ ^ ^ ^ 〇 〇8 material; for timely playback; or the compressed information number to another host. ) 〖40 to convey a compressed video and audio, "two = unit 12 ° from the compressed / decompressed video signal R = fixed]-when receiving data, it is transmitted through a pci: Λ Erpu shop signal stream After decompression, the compressed data of the compressed image is obtained. It is stored in the system memory (sdram) i22. The compression / decompression program uses-variable length encoding (vambie = h Dec,; Public processing unit 'and Huffman coding method codlng) to complete coding; In addition, the system also provides an input device 124 (such as a keyboard or mouse) and-storage device 126 (such as a floppy disk drive or optical disc Machine) 'is used for file rotation and data access required for video conferences. The method for implementing video conferences of wireless Internet access device 100 disclosed in the present invention can be divided into wireless LAN (WUN) ) The signals at both ends (including video and voice signals) of 14 ° are played and transmitted in real time for explanation: Figure 4 is a flowchart of the method for implementing a video rotation conference at the playback end of the present invention. Wireless LAN (WLAN) 1 4 0 The signal (step 400) is connected through the communication protocol control unit 150 of the wireless Internet access device 100, and is processed by a micro processor.

504932 V. Description of the invention (5) is 1 6 0 for processing the control mode of §fl number at both ends, and it also provides ^^ user interface 1 6 2 (such as hot key) to perform functions on the microprocessor 1 6 0 After the communication is completed, the signals (including video and audio signals) at the other end are input into the PCI bus of the wireless Internet access machine (step 410), and the video and audio are transmitted through the first audio and video processing unit 11 /). The signals are processed separately (step 42). After the decompression operation of the first video processing unit 1 10, the video signals are transmitted through the video output terminal 111 to the video input terminal 1 2 1 of the second video processing unit 120 (step 4 3 0); At this time, the voice signal separated through the first audio and video processing unit 1 10 is passed through a digital / analog converter 315, and then decoded by a voice encoding / decoding unit 1300. Input the decoded voice signal into the first, the audio processing unit 12 (step 4 4 0), and then output through the video output device 1 06 and the sound output device 108, to achieve the effect of real-time 'playback (step 45) Fig. 5 is a video output conference of the transmitting end of the present invention A flowchart of the method for implementing the method. When the wireless Internet machine 100 transmits a signal from the local terminal (Local), the video signal from the local terminal (al = al) is transmitted by the image capturing device 102 and the sound capturing device 104. Input to the first video and audio processing unit 1 丨 〇 (step Li, separate the video and audio signals (step 5 1 〇), after the first video i ί = ί 11〇 compression operation, the compressed video information入 Input end ί The output end 1U sends the video to the second audio and video processing unit 120. At this time, through the first audio and video processing unit no discrete audio signal, after passing through an analog / digital converter 36, Second- ': After the encoding operation of the dagger element 130, the encoded voice signal is inputted.-The shirt 3 processing unit 120 (step 5 3 0), and finally a pci 504932 V. Invention description (6)

The Bus transmits the signal to the other end of the wireless local area network (WL AN) 1 40 (step 5 40). Although the present invention is disclosed above with the foregoing preferred embodiment, it is not intended to limit the present invention. The artist may make some modifications and retouching without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope of the appended patent application.

Page 9 504932 Brief description of the diagram. Figure 1 is a diagram of a conventional video conference system architecture. Figure 2 is a diagram of a video conference system architecture of the present invention. Figure 3 is a diagram of a video conference system architecture of a wireless Internet access machine of the present invention. Figure 4 is a flowchart of the method for implementing the input video conference at the playback end of the present invention: and Figure 5 is a flowchart of the method of implementing the output video conference at the transmitting end of the present invention rL ο ο 1i OA- 30 TV ΙΟΟ 4-wire Internet access device 102 Video capture device 104 Voice capture device 106 Video output device 108 Sound output device 110 First video processing unit 111 Video output 120 Second video processing unit I2l Video input Port 122 System Memory (SDRAM) 124 Input device 126 Storage device

Page 504 504932 Schematic description 130 Voice encoding / decoding unit 135 Digital / analog converter 136 Analog / digital converter 140 Wireless local area network (WLAN) 150 Communication, protocol control early 160 microprocessor 162 user interface steps 4 0 0 Receive the signal from the other end of the wireless local area network (WLAN) through the wireless Internet access machine Step 4 10 Input the signal from the other end to the PCI Bus of the wireless Internet access machine Step 42 0 Use the first audio and video processing unit to transfer the image and voice Separate signal processing 'Step 4 3 0 After the decompression operation of the first video processing unit, the video signal is transmitted through the video output to the video input of the second video processing unit. Step 4 4 0 The voice signal is input to the second audio and video processing unit after decoding operation of a voice encoding / decoding unit through a digital / analog converter. Step 4 50 0 through the video output device and sound output Device output to achieve the effect of real-time playback. Step 5 0 0 This image is captured by the image capture device and the sound capture device. Input (Loca 1) video ‘audio signal into the first audio and video processing unit of the wireless internet machine Step 5 1 0 Separate video and audio signals

Page 11 504932 The diagram briefly explains step 5 2 0 After the compression operation of the first video processing unit, the compressed video signal is transmitted through the video output terminal to the video input terminal of the second video processing unit. Step 5 3 0 The audio signal separated by an audio-visual processing unit is input to the second audio-visual processing unit by the encoded audio signal after the encoding operation of an audio encoding / decoding unit through an analog / digital converter. Step 5 4 0 PCI Bus passes signals to the other end of the wireless local area network (WLAN)

Page 12

Claims (1)

504932 t. Scope of patent application 1. A video conference system for a wireless Internet access machine, including at least: the number and the number, and I to be decompressed; a voice encoding signal to decompress the second image element The video signal of the compression unit and the decoding unit will decompress and output an output to the non-meeting. 2. If applying for unified system, including voice capture 3. If applying for unified system, one of the first audio and video processing units is used to receive an audio / video signal or a coded audio / video signal and separate it into a voice signal and an image signal. The video signal is compressed into a voice coded signal and an image coded signal. The video signal is compressed or the video coded signal is processed / decoded by the unit and the voice is compressed. The video signal compressed by the audio processing unit is decompressed. And the voice-condensed image is centered; and the internet access computer is used to receive the voice signal or the voice coded signal and compress or encode the voice-coded signal to receive the signal from the first video processing single and From the voice encoding / decoding unit number, or receiving the first video processing single image encoding signal and the voice encoding / decoding speech encoding signal 'and outputting the compressed number to a wireless local area network, and The encoded signal and the speech encoded signal are output to the input of the line player and the transmitter to output the wireless signal as described in item 1 of the video range. The video conference unit of video signal lines provided by the end system (the Local) of the image capturing apparatus dare apparatus. The video conferencing system of the wireless Internet access device as described in item 1 of the scope of interest is provided by the other end of the wireless LAN ^ Page 13 504932 6. Scope of patent application 4. The video conference system of the wireless Internet access device as described in item 1 of the scope of patent application, wherein the voice signal is converted into a digital voice signal through an analog / digital converter. 5. The video conference system of the wireless Internet access device as described in item 1 of the scope of patent application, wherein the voice coded signal is converted into an analog voice signal through a digital / analog converter. 6. The video conference system of the wireless Internet access device as described in item 1 of the scope of patent application, wherein the output device includes an image output device and a sound output device. 7. The videoconferencing system of the wireless Internet access device as described in item 1 of the scope of patent application, which further includes a protocol control unit for connecting to the wireless local area network. 8. The videoconferencing system of the wireless Internet access device as described in item 1 of the scope of patent application, which further includes a microprocessor for processing a control mode of signals at both ends of the wireless LAN. 9. The videoconferencing system of the wireless Internet access device as described in item 8 of the scope of the patent application, wherein the microprocessor is more consumable and a user is required to issue a functional instruction to the microprocessor. 10. The video conference system of the wireless Internet access device as described in item 1 of the patent application scope, wherein the second video processing unit is further coupled with an input device and a storage device for inputting documents required for the video conference And access to data. 11. A method for implementing a video conference on the player side of a wireless Internet machine, which includes at least the following steps: Page 14 504932 VI. Patent application scope Receive the compressed signal from the other end of a wireless LAN through a wireless Internet access device; input the compressed signal at the other end into the PCIB us of the wireless Internet access device; through a first audio and video processing The unit separates the compressed signal into an image compression signal and a speech compression signal; after the decompression operation of the first audio and video processing unit, the decompressed image signal is transmitted through an image output terminal to one of a second audio and video processing unit Video input The voice compression signal separated through the first audio and video processing unit is input to the second audio and video processing unit after a digital audio / analog converter is converted to a voice encoding / decoding unit through decoding operations. Medium; and outputting the image signal and the voice signal through an image output device and a sound output device. 1 2. The method for implementing a video conference on the player side of a wireless Internet access device as described in item 11 of the patent application scope, further comprising a protocol control unit for connecting to the wireless local area network. 1 3. The method for implementing a video conference at the player end of a wireless Internet access device as described in item 11 of the scope of the patent application, further comprising a microprocessor for processing a control mode of signals at both ends of the wireless LAN. 1 4. The method for implementing a video conference on the player side of a wireless Internet access device as described in the application claim 13, wherein the microprocessor is further coupled with a user interface to perform functional instructions to the microprocessor. Release. Page 15 504932 VI. Application for patent scope 1 5. The method for implementing the input video conference of the player of the wireless Internet access device as described in item 11 of the patent application scope, wherein the second audio and video processing unit is further coupled with an input device and a Storage device, used to input and access data for the documents required for the video conference. 16. A method for implementing a video conference output at the transmitting end of a wireless internet machine, which includes at least the following steps: Inputting the local video signal to one of the wireless internet machines through an image capturing device and a sound capturing device In the first video processing unit; separating the video signal into an video signal and a voice signal, and after the compression operation of the first video processing unit, transmitting a compressed video compression signal through a video output terminal to a first One of the video input units of the two video processing units; 'The voice signal separated by the first video processing unit is subjected to an analog / digital converter, and then encoded by a voice encoding / decoding unit after the nose is shipped.' The voice encoding signal is input to the second audio and video processing unit; and, one of the wireless Internet access devices ^ CIB us' transmits the image compression signal and the voice encoding signal to the other end of a wireless local area network. 1 7. The method for implementing an output video conference at the transmitting end of a wireless Internet machine as described in item 16 of the scope of patent application, further comprising a protocol control unit for connecting to the wireless local area network. 1 8. The method for implementing a video conference output from a transmitting end of a wireless Internet access device as described in the application No. 16 of the exclusive scope, which further includes a microprocessor for processing control of signals at both ends of the wireless LAN. mode. Page 16 504932 6. Scope of patent application 1 9. The method for implementing a video conference output at the transmitting end of the wireless internet machine as described in item 18 of the scope of patent application, wherein the microprocessor is further coupled to a user interface to face the microcomputer The processor issues functional instructions. 20. The method for implementing a video conference output at the transmitting end of a wireless Internet access device as described in item 16 of the scope of the patent application, wherein the second video processing unit is further coupled to an input device and a storage device for the video conference Required document input and data access. Page 17