Videoconference system for wireless network machines and its implementation method
First Claim
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1. A videoconference system for a wireless network machine, which comprises:
- a first AV (Audio/Video) processing unit, which receives AV signals/encoded data, separates the AV signals into an audio signal and a video signal/separates the encoded data into an audio encoded signal and a video encoded signal, and compresses the video signal/decompresses the video encoded signal;
an audio encoding/decoding unit, which receives the audio signal/the audio encoded signal and compresses the audio signal/decompresses the audio encoded signal; and
a second AV processing unit, which receives the compressed video signal from the first AV processing unit and the compressed audio signal from the audio encoding/decoding unit/the decompressed video encoded signal from the first AV processing unit and the decompressed audio encoded signal from the audio encoding/decoding unit, and outputs the compressed video and audio signals to a WLAN (Wireless Local Area Network)/outputs the decompressed encoded video and audio signals to an output device;
wherein videoconferencing is performed by inputting signals at a playing terminal and outputting signals at a transmission terminal using the wireless network machine.
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Abstract
The specification discloses a videoconference system for wireless network machines and its implementation method. Any user can use a wireless network machine to couple to a video capture device, a audio capture device, an image output device and an audio output device. The wireless network machine contains a first AV processing unit, a second AV processing unit, and an audio encoding/decoding unit. Through a WLAN (Wireless Local Area Network), the user can connect to another user using the wireless network machine to perform videoconferencing.
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Citations
20 Claims
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1. A videoconference system for a wireless network machine, which comprises:
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a first AV (Audio/Video) processing unit, which receives AV signals/encoded data, separates the AV signals into an audio signal and a video signal/separates the encoded data into an audio encoded signal and a video encoded signal, and compresses the video signal/decompresses the video encoded signal;
an audio encoding/decoding unit, which receives the audio signal/the audio encoded signal and compresses the audio signal/decompresses the audio encoded signal; and
a second AV processing unit, which receives the compressed video signal from the first AV processing unit and the compressed audio signal from the audio encoding/decoding unit/the decompressed video encoded signal from the first AV processing unit and the decompressed audio encoded signal from the audio encoding/decoding unit, and outputs the compressed video and audio signals to a WLAN (Wireless Local Area Network)/outputs the decompressed encoded video and audio signals to an output device;
wherein videoconferencing is performed by inputting signals at a playing terminal and outputting signals at a transmission terminal using the wireless network machine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for inputting signals at the playing terminal of a wireless network machine in videoconferencing, which comprises the steps of:
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receiving compressed signals from the other end of a WLAN using the wireless network machine;
inputting the compressed signals from the other end to the PCI bus of the wireless network machine;
separating the compressed signals into a video compressed signal and an audio compressed signal using a first AV processing unit;
decompressing the compressed video signal using the first AV processing unit and sending the decompressed video signal to a video input terminal of a second AV processing unit via a video output terminal;
decoding the extracted audio compressed signal using an audio encoding/decoding unit, converting the signal into an analog signal using a D/A (Digital/Analog) converter, and outputting the resulting signal to the second AV processing unit; and
outputting the video signal and the audio signal via a video output device and an audio output device. - View Dependent Claims (12, 13, 14, 15)
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16. A method for outputting signals at a transmission terminal of a wireless network machine in videoconferencing, which comprises the steps of:
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inputting local AV signals to a first AV processing unit of the wireless network machine via a video capture device and an audio capture device;
separating the AV signals into a video signal and an audio signal;
compressing the video signal using the first AV processing unit and sending the compressed video signal to a video input terminal of a second AV processing unit via a video output terminal;
converting the audio signal into a digital audio signal using an A/D (Audio/Video) converter, encoding the digital audio signal using an audio encoding/decoding unit, and outputting the encoded audio signal to the second AV processing unit; and
transmitting the encoded video and audio signals to the other end of the WLAN via a PCI bus of the wireless network machine. - View Dependent Claims (17, 18, 19, 20)
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Specification