Power conservation for pots and modulated data transmission

Details Power conservation for pots and modulated data transmission Power conservation for pots and modulated data transmission

1997-07-30

1999-09-21

Pham, Chi H.

Multiplex communications

Diagnostic testing

Using oam cells

379413, H04M 1100, H04Q 100

Patent

active

059563230

ABSTRACT:
Methods and apparatus for conserving power in terminal units that transmit and receive modulated data over a communications loop that is shared with voiceband telephone equipment are disclosed. The methods include monitoring the loop to detect a shut-down condition and reducing power consumption of certain of the electronic circuits in the terminal unit upon detection of a shut-down condition. The methods also include monitoring the loop with a monitoring circuit to detect a resume signal outside the voiceband frequency range on the loop and restoring power to the electronic circuits when the resume signal is detected. The apparatuses include a modulated data transmitting and receiving unit having a connector for coupling the unit to a communications loop, circuitry to transmit and receive a modulated data signal in a frequency range above voiceband, and circuitry to detect a resume signal in the frequency range above voiceband and then to initiate a power up sequence for the transmit and receive circuitry.

REFERENCES:
patent: 4484028 (1984-11-01), Kelley et al.
patent: 4979208 (1990-12-01), Pruden et al.
patent: 5483574 (1996-01-01), Yuyama
patent: 5590396 (1996-12-01), Henry
patent: 5742527 (1998-04-01), Rybicki et al.
patent: 5799064 (1998-08-01), Sridhar et al.

Affiliated with

Also associated with

Rating

Power conservation for pots and modulated data transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power conservation for pots and modulated data transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power conservation for pots and modulated data transmission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-86933