Method for eliminating multiple modulating and demodulating...

Details Method for eliminating multiple modulating and demodulating... Method for eliminating multiple modulating and demodulating...

2005-08-09

2005-08-09

Williams, Kimberly (Department: 2626)

Facsimile and static presentation processing

Facsimile

Electronic mailbox

C358S403000, C358S426010, C379S100150, C379S100170

Reexamination Certificate

active

06927878

ABSTRACT:
A technique for detection and bypass of unnecessary modulation/demodulation and compression/decompression of Group 3 fax, in a telecommunication network having more than one pair, or “tandem,” Group 3 fax relay gateways. Detection and the effective removal of a Group 3 fax tandem reduces end-to-end processing delays of the facsimile signal, and improves performance of the Group 3 fax communication. The invention uses frequencies normally used for voice information (such as V.21 channel1frequencies) to detect tandem fax relay gateways and effectively remove unnecessary relay gateways.

REFERENCES:
patent: 5491565 (1996-02-01), Naper
patent: 6463135 (2002-10-01), Abrishami et al.
patent: 6466330 (2002-10-01), Mori
patent: 6549587 (2003-04-01), Li
patent: 6650440 (2003-11-01), Wing
patent: 6674541 (2004-01-01), Kamiyama et al.
patent: 2001/0046259 (2001-11-01), Abrishami
patent: 2003/0099338 (2003-05-01), Bei et al.

Affiliated with

Also associated with

Rating

Method for eliminating multiple modulating and demodulating... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for eliminating multiple modulating and demodulating..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for eliminating multiple modulating and demodulating... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3500420