Data transmitting and receiving system using pulse width modulation
First Claim
1. A SELECTING SYSTEM USING DISCRETE BIT REPRESENTING SIGNALS OF A FIRST DURATION AND A SECOND DURATION, COMPRISING A SIGNALING CHANNEL TO WHICH SAID DISCRETE SIGNALS OF SAID FIRST AND SECOND DURATIONS CAN BE APPLIED, COUNTING MEANS SUCCESSIVELY OPERATED TO DIFFERENT SETTINGS IN RESPONSE TO THE DISCRETE SIGNALS APPLIED TO SAID CHANNEL, A DETECTING CIRCUIT, CONTROL MEANS CONTROLLED BY SAID COUNTING MEANS AND COUPLED TO THE DETECTING CIRCUIT FOR CONDITIONING SAID DETECTING CIRCUIT TO RECEIVE THE NEXT BIT OF A KNOWN PATTERN OF BIT REPRESENTING SIGNALS OF SAID FIRST AND SECOND DURATIONS, MEANS CONTROLLED BY EACH SIGNAL RECEIVED FROM SAID CHANNEL FOR SUPPLYING A CORRESPONDING SIGNAL TO SAID DETECTING CIRCUIT, AND MEANS CONTROLLED BY SAID DETECTING MEANS FOR PROVIDING AN INDICATION WHEN ANY SIGNAL RECEIVED FROM SAID CHANNEL HAS A DURATION OTHER THAN THE DURATION FOR WHICH THE DETECTING CIRCUIT HAS BEEN CONDITIONED.
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1 Claim
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1. A SELECTING SYSTEM USING DISCRETE BIT REPRESENTING SIGNALS OF A FIRST DURATION AND A SECOND DURATION, COMPRISING A SIGNALING CHANNEL TO WHICH SAID DISCRETE SIGNALS OF SAID FIRST AND SECOND DURATIONS CAN BE APPLIED, COUNTING MEANS SUCCESSIVELY OPERATED TO DIFFERENT SETTINGS IN RESPONSE TO THE DISCRETE SIGNALS APPLIED TO SAID CHANNEL, A DETECTING CIRCUIT, CONTROL MEANS CONTROLLED BY SAID COUNTING MEANS AND COUPLED TO THE DETECTING CIRCUIT FOR CONDITIONING SAID DETECTING CIRCUIT TO RECEIVE THE NEXT BIT OF A KNOWN PATTERN OF BIT REPRESENTING SIGNALS OF SAID FIRST AND SECOND DURATIONS, MEANS CONTROLLED BY EACH SIGNAL RECEIVED FROM SAID CHANNEL FOR SUPPLYING A CORRESPONDING SIGNAL TO SAID DETECTING CIRCUIT, AND MEANS CONTROLLED BY SAID DETECTING MEANS FOR PROVIDING AN INDICATION WHEN ANY SIGNAL RECEIVED FROM SAID CHANNEL HAS A DURATION OTHER THAN THE DURATION FOR WHICH THE DETECTING CIRCUIT HAS BEEN CONDITIONED.
Specification
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Current AssigneeCharles H. Currey, Curtis B. Bendell, Donald E. Haselwood, Lewis Brown Arthur Charles
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Original AssigneeCharles H. Currey, Curtis B. Bendell, Donald E. Haselwood, Lewis Brown Arthur Charles
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InventorsCurrey, Charles H., Bendell, Curtis B., LEWIS BROWN ARTHUR CHARLES, Haselwood, Donald E.
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Application NumberUS04/232,684Time in Patent Office1,497 DaysField of SearchUS Class Current340/12.16CPC Class CodesH04H 60/66 for using the result on dis...H04H 60/94 Telephonic networks for acc...
