Pulse or digital communications – Synchronizers – Phase displacement – slip or jitter correction
Patent
1995-04-11
1996-09-10
Chin, Stephen
Pulse or digital communications
Synchronizers
Phase displacement, slip or jitter correction
331DIG2, 327156, 375373, H03D 324
Patent
active
055552781
ABSTRACT:
Jitter provided from a phase locked loop circuit is extracted by pulse extracting circuits. Determination is made by a counter whether a pulse signal representing the jitter reaches a predetermined number within a predetermined time period. An evaluation signal representing the level of the jitter is provided from a thermometer decoder according to the determination result.
REFERENCES:
patent: 5008635 (1991-04-01), Hanke et al.
patent: 5075640 (1991-12-01), Miyazawa
patent: 5109285 (1992-04-01), Koga
patent: 5126690 (1992-06-01), Bui et al.
patent: 5327103 (1994-07-01), Baron et al.
patent: 5375148 (1994-12-01), Parker et al.
Chin Stephen
Mitsubishi Denki & Kabushiki Kaisha
Vo Don
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