Pulse or digital communications – Repeaters – Testing
Patent
1988-03-28
1989-01-03
Safourek, Benedict V.
Pulse or digital communications
Repeaters
Testing
375108, H04B 715
Patent
active
047962780
ABSTRACT:
A repeater includes a receiver, a synchronizing signal generator, a step out detector, a first selector for selecting either a receiver output or a synchronizing signal generator output in accordance with a first control signal, a second selector for selecting one of the receiver output or the synchronizing signal generator output and supplying it to the step out detector, and a controller for outputting first and second control signals for controlling the first selector to select the synchronizing signal generator output when step out is detected in the receiver output and controlling the first and second selectors to select the receiver output when step out is detected in the synchronizing signal generator.
REFERENCES:
patent: 3987395 (1976-10-01), Desombre et al.
patent: 4466110 (1984-08-01), Kizaki et al.
patent: 4561101 (1985-12-01), Pinsard et al.
patent: 4660201 (1987-04-01), Nakamura
NEC Corporation
Safourek Benedict V.
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