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MILLIWAVE TRANSMITTING DEVICE, MILLIWAVE RECEIVING DEVICE AND MILLIWAVE TRANSMISSION AND RECEPTION SYSTEM CAPABLE OF SIMPLIFYING WIRING OF A RECEIVING SYSTEM OF TERRESTRIAL BROADCASTING SERVICE AND SATELLITE BROADCASTING SERVICE

  • US 6,915,529 B1
  • Filed: 02/26/1999
  • Issued: 07/05/2005
  • Est. Priority Date: 02/27/1998
  • Status: Expired due to Fees
First Claim
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1. A milliwave transmission device for wirelessly transmitting a milliwave, comprising:

  • a broadcaster-wave receiving circuit receiving a plurality of broadcast waves and converting said plurality of broadcast waves into broadcast signals respectively corresponding to said broadcast waves; and

    a modulation circuit up-converting said broadcast signal into a milliwave for transmission and reception;

    a milliwave transmitting circuit transmitting said milliwave such that broadcast signals corresponding to said plurality of broadcast waves are collectively transmitted at one time; and

    at least one of a first amplifier provided between said broadcast-wave receiving circuit and said modulation circuit for providing a uniform output level of said broadcast signals, a second amplifier provided between said broadcast-wave receiving circuit and said modulation circuit for providing a higher output level of said broadcast signals on a high-frequency side than on a low-frequency side, and a third amplifier provided between said broadcast-wave receiving circuit and said modulation circuit for selectively enhancing among said broadcast waves an output level of a broadcast wave having a required C/N, as compared to another of said broadcast waves.

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