Communication device including a power reduction mechanism

Details Communication device including a power reduction mechanism Communication device including a power reduction mechanism

2008-09-09

2010-11-16

Williams, Howard (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

Reexamination Certificate

active

07834790

ABSTRACT:
A communication device includes a communication port that includes a digital to analog converter (DAC) that may be configured to output for transmission an analog signal that corresponds to a digital input such as link data that is to be transmitted on a physical link. The communication port further includes a control unit coupled to the DAC and may be configured to provide a bias current to the DAC during operation. In addition, the control unit may further be configured to reduce the bias current to the DAC dependent upon a mode of operation of the communication port and whether there is data to transmit.

REFERENCES:
patent: 6154092 (2000-11-01), Lee et al.
patent: 7068200 (2006-06-01), Hodapp et al.
patent: 2005/0258991 (2005-11-01), Efland et al.
patent: 2008/0253356 (2008-10-01), Berman et al.
patent: 2009/0190513 (2009-07-01), Islam et al.

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