发明授权
- 专利标题: IR Remote control detector/decoder
- 专利标题(中): 红外遥控探测器/解码器
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申请号: US340555申请日: 1982-01-18
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公开(公告)号: US4426662A公开(公告)日: 1984-01-17
- 发明人: Peter C. Skerlos , Thomas J. Zato
- 申请人: Peter C. Skerlos , Thomas J. Zato
- 申请人地址: IL Glenview
- 专利权人: Zenith Radio Corporation
- 当前专利权人: Zenith Radio Corporation
- 当前专利权人地址: IL Glenview
- 主分类号: G08C23/04
- IPC分类号: G08C23/04 ; H03J1/00 ; H04B9/00
摘要:
A pulse code modulated (PCM) infrared (IR) remote control detector/decoder with improved noise immunity particularly adapted for use with a television receiver is disclosed. The IR pulses are modulated by means of a high frequency clock signal in translating the transmitted signal to a higher frequency, more noise immune portion of the IR spectrum. After receipt of the transmitted signal by a signal detector, the high frequency modulation is removed from the pulses which are then decoded. Under the control of a microcomputer, the decoder looks for the start data bit and, if received, the subsequent control instructions. When the data transmission has been decoded, the microcomputer activates the appropriate control outputs to the television receiver's tuner system to achieve the desired control function.
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