H - Electricity – 04 – B
Patent
H - Electricity
04
B
325/29
H04B 7/02 (2006.01)
Patent
CA 1076210
45-MR-65 ABSTRACT OF THE DISCLOSURE In a radio communication system having a command or base station and one or more controlled stations, the base station transmits outbound binary function messages to the controlled stations in order to make an inquiry or give a command to one or all of the controlled stations. The controlled station responds with an inbound binary message. The outbound messages comprise a sequence of binary bits at a first rate and having a first synchronizing word of nine bits, a first address word having eight message bits and four parity bits and produced three times, a second synchronizing word that is the binary inversion of the first synchronizing word, a second address word having eight message bits and four parity bits and produced three times, a third synchronizing word that is the binary in- version of the first synchronizing word, and a command word having eight message bits and four parity bits and produced three times. If a controlled station receives and recognizes its address, it transmits a response in the form of an inbound message having a sequence of binary bits at a rate that is 11/2 times the rate of the outbound message, The inbound message comprises a sequence of a plurality of binary preamble bits of different values, the first synchronizing word, the first address word produced three times, the second synchronizing word, the second address word produced three times, the third synchronizing word, and a response word having eight message bits and four parity bits and produced three times.
256702
Stackhouse Bill L.
Taylor Theodore E.
LandOfFree
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