Wireless moving image and audio transmitting system
First Claim
1. A moving image and audio transmitter for transmitting at least one of moving image and an audio signal to a communication terminal, comprising:
- a) a moving image compression coder for compression coding the moving image signal output from a moving image input unit, b) an audio compression coder for compressing and coding the audio signal, e) a radio transmitting unit for transmitting the moving image data compressed and coded in the moving image compression coder, and the audio data compression-coded in the audio compression coder, f) an audio output unit for outputting the audio signal, and g) an audio output instructing unit for determining a selection on whether to transmit the audio signal by said radio transmitting unit or to output in said audio output unit, depending on a distance between the moving image and audio transmitter and said communication terminal.
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Accused Products
Abstract
A wireless moving image and audio transmitting system capable of enhancing the display quality of moving image and output quality of audio without expanding the bandwidth of radio communication is disclosed. The wireless moving image and audio transmitting system comprises a moving image and audio transmitter and a portable display terminal. When the portable display terminal is near the moving image and audio transmitter, the sound input from the audio input unit of the moving image and audio transmitter is directly output from the speaker of the audio output unit. At this time, the moving image and audio transmitter transmits the input moving image at a low compression rate to the portable display terminal. Thus, the display quality of moving image and output quality of audio can be enhanced without expanding the bandwidth of radio communication.
14 Citations
20 Claims
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1. A moving image and audio transmitter for transmitting at least one of moving image and an audio signal to a communication terminal, comprising:
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a) a moving image compression coder for compression coding the moving image signal output from a moving image input unit, b) an audio compression coder for compressing and coding the audio signal, e) a radio transmitting unit for transmitting the moving image data compressed and coded in the moving image compression coder, and the audio data compression-coded in the audio compression coder, f) an audio output unit for outputting the audio signal, and g) an audio output instructing unit for determining a selection on whether to transmit the audio signal by said radio transmitting unit or to output in said audio output unit, depending on a distance between the moving image and audio transmitter and said communication terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A portable display terminal for communicating with a communication terminal, and receiving at least one of moving image data and audio data, comprising:
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a) a radio receiving unit for receiving compression-coded moving image data and compression-coded audio data, b) a moving image decoder for decoding the moving image data received in said radio receiving unit, c) a display unit for displaying the image according to the moving image data decoded by said moving image decoder, d) an audio decoder for decoding the audio data received in said radio receiving unit, e) an audio output unit for issuing the audio signal decoded by said audio decoder, and f) an audio output determining unit for determining whether or not to output the audio signal from the audio output unit, depending on a distance between said moving image and audio transmitter and communication terminal. - View Dependent Claims (10, 11, 12, 14, 15, 16, 17, 18, 19, 20)
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13. A wireless moving image and audio transmitting system for communicating information including at least one of moving image data and audio data, comprising:
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1) a moving image and audio transmitter, and 2) a portable display terminal for communicating with said moving image and audio transmitter and receiving at least one of the moving image data and the audio data, wherein said moving image and audio transmitter comprises;
a) a moving image compressing coder for compressing and coding a moving image signal ouput from a moving image input unit, b) an audio compressing coder for compressing and coding an audio signal, c) a radio transmitting unit for transmitting the moving image data compressed and coded in the moving image compressing coder, and the audio data compressed and coded in the audio compressing coder, d) an audio output unit for issuing the audio, and e) an audio output instructing unit for determining a selection on whether to transmit the audio by the radio transmitting unit or to output in the audio output unit, depending on a distance between the moving image and audio transmitter and the portable display terminal, and said portable display terminal comprises;
a′
) a radio receiving unit for receiving compression-coded moving image data and compression-coded audio data,b′
) a moving image decoder for decoding the moving image data received in said radio receiving unit,c′
) a display unit for displaying the image according to the moving image data decoded by said moving image decoder,d′
) an audio decoder for decoding the audio data received in said radio receiving unit,e′
) an audio output unit for issuing the audio signal decoded by said audio decoder, andf′
) an audio output determining unit for determining whether or not to output the audio signal from the audio output unit, depending on the distance between said moving image and audio transmitter and the portable display terminal.
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Specification