Communications: electrical – Continuously variable indicating – With meter reading
Patent
1982-07-15
1985-03-19
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
375114, H04Q 900, H04B 116
Patent
active
045062625
ABSTRACT:
A method of synchronizing a digital radio pager receiver with incoming digital data signals. At switch-on the receiver first attains a "course" bit synch during the first quarter-word period and then a "fine" bit synch during the next half-word period. The receiver then examines incoming data bits to determine simultaneously (a) whether valid data is being received and (b) whether the incoming data contains a preamble sequence. If either determination is successful the incoming data is then examined to determine whether it contains a synchronizing word or an address word. The synchronization and address word determination is also carried out while bit synch is obtained and the valid data/preamble determination is effected.
REFERENCES:
patent: 4001693 (1977-01-01), Stackhouse et al.
patent: 4229822 (1980-10-01), Bench
patent: 4353065 (1982-10-01), Mori
Bidwell Brian A.
Jeffrey Colin
Leevers David F. A.
Vance Ian A. W.
Woodley Michael J. A.
International Standard Electric Corporation
O'Halloran John T.
Ruzek Peter R.
Yusko Donald J.
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