Pulse or digital communications – Synchronizers – Phase displacement – slip or jitter correction
Patent
1996-11-15
1999-02-16
Bocure, Tesfaldet
Pulse or digital communications
Synchronizers
Phase displacement, slip or jitter correction
375372, 375373, H04L 700, H04L 2536
Patent
active
058728210
ABSTRACT:
Recurring digital control signals are provided in a predeterminable time frame, with a high time-dependent resolution and flexibility. Data for the control signals are stored in a write/read memory addressed by an address counter. A comparator is clocked with a multiple of the digital signals bit clock, for comparison with the content of a time Table stored in the write/read memory. For convenience in synchronizing to the time frames of adjacent cells in a cellular network, an offset adder may add the complement of a measured offset (delay) to the comparator clock signal, so that it is not necessary to adjust the values stored in the time Table.
REFERENCES:
patent: 3883853 (1975-05-01), O'Brien et al.
patent: 4135059 (1979-01-01), Schmidt
patent: 4641269 (1987-02-01), Japenga et al.
patent: 5109393 (1992-04-01), Saegusa
Bocure Tesfaldet
Schaier Arthur G.
U.S. Philips Corporation
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