Telegraphy – Systems – Line-clearing and circuit maintenance
Patent
1976-05-20
1978-05-09
Safourek, Benedict V.
Telegraphy
Systems
Line-clearing and circuit maintenance
179 15BS, 325 38R, 325320, 178 68, H04L 700
Patent
active
040888312
ABSTRACT:
At the transmitter the synchronization information is provided by position modulation of the line transitions of at least one bit of a PCM word. The receiver is synchronized to the received coded signal by detecting the position modulation of the bit of the PCM word. This arrangement avoids the need for extra bits to convey synchronization information.
REFERENCES:
patent: 3020483 (1962-02-01), Losee
patent: 3238299 (1966-03-01), Lender
patent: 3500247 (1970-03-01), Sekimoto
patent: 3629728 (1971-12-01), Whitlow
patent: 3646451 (1972-02-01), Shoap
patent: 3729678 (1973-04-01), Glasbergen
patent: 3755748 (1973-08-01), Carlow
Butcher John A. W.
Lambourn Edward H.
Hill Alfred C.
International Standard Electric Corporation
Masinick Michael A.
O'Halloran John T.
Safourek Benedict V.
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