Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via code word channels
Patent
1997-12-22
2000-10-03
Olms, Douglas W.
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via code word channels
370466, 370490, 370522, H04J 1300
Patent
active
061283177
ABSTRACT:
A synchronous serial protocol is used to transfer data from a host processor (102) to multiple CODECs (112) operating at differing speeds and from such CODECs (112) back to the host processor (102) across a bidirectional pair of serial links (134, 136). A link speed fast enough to accommodate all operating CODECs (112) is utilized. Frames are transmitted across the bidirectional pair of serial links (134, 136) controlled by frame sync (132) and bit clock (130) signals. Each frame has a control word of validity bits followed by one data word for each active CODEC (112). The validity bits determine whether the corresponding data word contains valid data for or from the corresponding CODEC (112).
REFERENCES:
patent: 4813040 (1989-03-01), Futato
patent: 5122875 (1992-06-01), Raychaudhuri et al.
Hom Shick
Motorola Inc.
Olms Douglas W.
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