TRANSMITTING APPARATUS AND METHOD, RECEIVING APPARATUS AND METHOD, DISTRIBUTION MEDIUM AND TRANSMITTING SYSTEM

• US 20030091348A1
• Filed: 04/20/1999
• Published: 05/15/2003
• Est. Priority Date: 04/22/1998
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: SATO, YOSHIYUKI, OKADA, TOSHIO, IWASA, TAKASHI, HIRAMATSU, TAMIHEI
• Granted Patent: US 6,594,052 B2
• Time in Patent Office: Days
• US Class Current: 398/43
• CPC Class Codes: H04B 10/1149 Arrangements for indoor wireless networking of information

Abstract

The OD servers, encoders, NOD servers and CPUs supply voice data, character data and remote control data together with the control information. A transmitter modulates the control information and voice data, etc. by the QPSK modulation method. An infrared ray emitter outputs the modulated infrared ray depending on the modulated signal. A receiving apparatus reproduces acoustic signal from the modulated infrared ray and displays characters and also transmits the signal corresponding to the remote control data to the transmitting apparatus with the infrared ray. An infrared ray detector receives the modulated infrared ray output from the receiving apparatus. Thereby, with this system, the signal, required by the receiving side or suitable for the condition of the receiving side, supplied through many channels can be transmitted without any restriction on the wiring.

Claims

1. A transmitting apparatus for transmitting signals of a plurality of channels to a receiving apparatus, comprising:

supplying means for supplying said signals;

outputting means for outputting infrared ray based on said signals supplied from said supplying means; and

light receiving means for receiving the infrared ray output from said receiving apparatus.

2. A transmitting apparatus as claimed in claim 1, wherein said signals of a plurality of channels are near on-demand signals.

3. A transmitting apparatus as claimed in claim 1, further comprising character data supplying means for supplying character data.

4. A transmitting apparatus as claimed in claim 1, wherein said supplying means also supplies a control signal to control said receiving apparatus.

5. A transmitting method for transmitting signals of a plurality of channels to the receiving apparatus, comprising:

supplying step for supplying said signals;

outputting step for outputting infrared ray based on said signals supplied by said supplying step;

light receiving step for receiving the infrared ray output from said receiving apparatus; and

demodulating step for demodulating the signals output from said light receiving step.

6. A distribution medium having recorded a computer-readable program for executing the processes including:

supplying step for supplying said signals to the transmitting apparatus for transmitting signals of a plurality of channels to the receiving apparatus;

outputting step for outputting the infrared ray based on said signals supplied by said supplying step;

light receiving step for receiving infrared ray output from said receiving apparatus; and

demodulating step for demodulating the signal output by said light receiving step.

7. A receiving apparatus for receiving signals of a plurality of channels transmitted by infrared ray from the transmitting apparatus, comprising:

light receiving means for receiving the infrared ray;

demodulating means for demodulating signals output from said light receiving means;

selecting means for selecting signals output from said demodulating means; and

infrared ray outputting means for outputting signals with the infrared ray to said transmitting apparatus depending on the signals output from said demodulating means.

8. A receiving apparatus as claimed in claim 7, wherein said signals of a plurality of channels output from said transmitting apparatus are near on-demand signals.

9. A receiving apparatus as claimed in claim 7, further comprising a displaying means for displaying character data.

10. A receiving apparatus as claimed in claim 7, wherein said infrared ray outputting means outputs the infrared ray signal when the signal output from said demodulating means includes an instruction to instruct operations of said receiving apparatus.

11. A receiving method for receiving signals of a plurality of channels transmitted with infrared ray by the transmitting apparatus, comprising:

light receiving step for receiving the infrared ray;

demodulating step for demodulating the signals output by said light receiving step;

selecting step for selecting signals output by said demodulating step; and

infrared ray outputting step for outputting signals with the infrared ray to said transmitting apparatus depending on the signals output by said demodulating step.

12. A distribution medium having recorded a computer-readable program for instructing the receiving apparatus to receive the signals of a plurality of channels transmitted with infrared ray by the transmitting apparatus to execute the processes including:

light receiving step for receiving infrared ray;

demodulating step for demodulating signals output by said light receiving step;

selecting step for selecting signals output by said demodulating step; and

infrared ray outputting step for outputting signals with infrared ray to said transmitting apparatus depending on the signals output by said demodulating step.

13. A transmitting system for transmitting signals of a plurality of channels to a receiving apparatus from a transmitting apparatus, wherein said transmitting apparatus is comprising supplying means for supplying said signals of a plurality of channels, first outputting means for outputting infrared ray based on said signal supplied from said supplying means and first light receiving means for receiving infrared ray output from said receiving apparatus;

and said receiving apparatus is comprising second light receiving means for receiving infrared ray output from said first output means, demodulating means for demodulating signal output from said second light receiving means, selecting means for selecting said signal output from said demodulating means and second outputting means for outputting infrared ray to said transmitting apparatus depending on the signal output from said demodulating means.