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Method of avoiding signal interference among a plurality of remote control signals

  • US 5,663,716 A
  • Filed: 02/08/1995
  • Issued: 09/02/1997
  • Est. Priority Date: 04/08/1994
  • Status: Expired due to Term
First Claim
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1. A method of transmitting and receiving signals between a plurality of remote controls and a single receiver comprising the steps of:

  • repeatedly sending a transmission signal for a period ST;

    composing each period of a transmission permitting data frame STa and a transmission preventing data frame STb, wherein the transmission permitting data frame STa having a time period which is equal to or shorter than a time period for the transmission preventing data frame STb (STa≦

    STb);

    composing each transmission permitting data frame STa of a transmission unit of time TT times 2i-1, where "i" is a positive integer which is different for each remote control or channel; and

    composing each transmission unit of time TT of a data-present sub-section DTa and data-absent sub-section DTb, and wherein the data-present sub-section DTa having a time period which is equal to or shorter than a time period for the data-absent sub-section DTb (DTa≦

    DTb).

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