Communication timing coordination techniques

Details Communication timing coordination techniques Communication timing coordination techniques

2006-04-25

2006-04-25

Qureshi, Afsar (Department: 2667)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S516000, C375S358000, C375S371000, C375S376000

Reexamination Certificate

active

07035253

ABSTRACT:
A communication unit (30) arranged to send transmit data includes a receiver (32) arranged to recover input data transmitted at a downstream transfer rate in response to a symbol clock (20) signal. A transmitter (40) is arranged to transmit the transmit data at an upstream transfer rate in response to an upstream transmit clock signal (TX_CLKA) that is coordinated with the symbol clock signal. The frequency or repetition rate of the upstream transmit clock signal is defined at least in part by a predetermined relationship between the downstream transfer rate and the upstream transfer rate, such as a ratio of the downstream transfer rate and the upstream transfer rate.

REFERENCES:
patent: 5172396 (1992-12-01), Rose, Jr. et al.
patent: 5479457 (1995-12-01), Waters

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