Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 21, 2014
Patent Application Number
13627476
Date Filed
September 26, 2012
Patent Citations Received
0
Patent Primary Examiner
Patent abstract
A rolling code transmitter is useful in a security system for providing secure encrypted RF transmission comprising an interleaved trinary bit fixed code and rolling code. A receiver demodulates the encrypted RF transmission and recovers the fixed code and rolling code. Upon comparison of the fixed and rolling codes with stored codes and determining that the signal has emanated from an authorized transmitter, a signal is generated to actuate an electric motor to open or close a movable barrier.
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