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Wireless extension for cable television signals

  • US 7,151,575 B1
  • Filed: 07/17/2003
  • Issued: 12/19/2006
  • Est. Priority Date: 07/18/2002
  • Status: Expired due to Fees
First Claim
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1. A wireless extension for transmitting analog and digital television signals from one location to another comprising:

  • a sending unit comprising;

    a remote control interface for receiving a channel selection command;

    at least one tuner for receiving both analog and digital television signals responsive to the remote control interface with an RF input and a tuner output;

    a digital demodulator for receiving the tuner output and producing a digital stream containing MPEG encoded program information;

    an MPEG demultiplexer for receiving the MPEG information from the digital demodulator and selecting at least one MPEG program to produce a first MPEG stream;

    an MPEG encoder receiving the tuner output and producing a second MPEG stream;

    a selector for selecting between the first MPEG stream and the second MPEG stream, wherein an active MPEG stream is selected;

    a digital lock detector in the digital demodulator for detecting a digital signal lock condition;

    an analog lock detector in the MPEG encoder for detecting an analog signal lock condition;

    control logic circuitry responsive to the digital lock detector and the analog lock detector with an output to the selector to select an active MPEG stream from the stream indicating a lock condition; and

    a modulator and transmitter for producing an RF signal to transmit the selected MPEG stream;

    a receiving unit comprising;

    a receiver for receiving the RF signal; and

    an MPEG demultiplexer/decoder for demultiplexing the desired program and converting the MPEG program to a signal suitable for driving a television receiver.

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