Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Patent
1996-03-28
1998-05-12
Olms, Douglas W.
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
370516, 39520019, 375357, H04J 306
Patent
active
057517215
ABSTRACT:
A system associates a time-stamp with data inputted at its input, specifying an instant with a predetermined delay after receiving the data. The system outputs said data at an output according to the time-stamp. Inputting and outputting is timed by different clocks, which are periodically synchronized. At certain times the source of synchronization may change, potentially causing a discontinuity in synchronized time. The system contains potential discontinuity signalling means, for signalling a potential discontinuity in a progression of the clocked time. The predetermined relation is corrected when such a potential discontinuity is signalled for an instant between inputting and outputting the data.
REFERENCES:
patent: 5052029 (1991-09-01), James
patent: 5408506 (1995-04-01), Mincher
patent: 5566174 (1996-10-01), Sato
patent: 5633871 (1997-05-01), Bloks
IEEE P1394 Standard, Draft 8.0v2, Jul. 7, 1995.
Barschall Anne E.
Olms Douglas W.
Phillips Matthew C.
U.S. Philips Corporation
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