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Combined transceiver and radio broadcast receiver

  • US 3,277,374 A
  • Filed: 08/02/1963
  • Issued: 10/04/1966
  • Est. Priority Date: 09/24/1962
  • Status: Expired due to Term
First Claim
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1. IN COMBINATION, A TRANSCEIVER HAVING A RECEIVER PORTION PROVIDING AN OUTPUT TERMINAL AND TUNABLE TO A SIGNAL FROM ANOTHER TRANSCEIVER, A RADIO BROADCAST RECEIVER HAVING AN OUTPUT TERMINAL, A SIGNAL SELECTING DEVICE CONNECTED TO SAID TRANSCEIVER OUTPUT TERMINAL AND SELECTIVELY RESPONSIVE TO A PRESCRIBED CALLING SIGNAL SAID SELECTING DEVICE HAVING A SELECTIVE A.C. OUTPUT AND A SELECTIVE D.C. OUTPUT, CIRCUIT MEANS INCLUDING SOUND REPRODUCER MEANS, MEANS FOR APPLYING SAID A.C. OUTPUT TO SAID CIRCUIT MEANS AS A SELECTIVE CALLING SIGNAL, A GAIN CONTROL CIRCUIT FOR SAID BROADCAST RECEIVER, MEANS FOR APPLYING SAID D.C. OUTPUT TO SAID GAIN CONTROL CIRCUIT FOR CONTROLLING THE GAIN OF SAID BROADCAST RECEIVER, THE MEANS FOR CONNECTING THE OUTPUT TERMINAL OF SAID BROADCAST RECEIVER WITH SAID CIRCUIT MEANS WHILE SAID A.C. OUTPUT IS CONNECTED WITH SAID CIRCUIT MEANS.

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