Method and apparatus for generating a metering pulse

Details Method and apparatus for generating a metering pulse Method and apparatus for generating a metering pulse

2011-08-02

2011-08-02

Tran, Quoc D (Department: 2614)

Telephonic communications

With usage measurement

Call charge metering or monitoring

C379S359000, C379S387020

Reexamination Certificate

active

07991133

ABSTRACT:
In one embodiment, a subscriber line interface circuit includes circuitry to generate metering pulses for insertion onto a subscriber line. The circuitry includes an audio path and a pulse metering path, where the pulse metering path includes a metering generator to generate a digital sine wave from a plurality of stored values, a first interpolator to interpolate the digital sine wave, a filter to filter the interpolated digital sine wave, and a second interpolator to interpolate the filtered interpolated digital sine wave.

REFERENCES:
patent: 5452345 (1995-09-01), Zhou et al.
patent: 5798724 (1998-08-01), Myers
patent: 6587544 (2003-07-01), Nossing et al.
patent: 6829353 (2004-12-01), Enriquez
patent: 6895040 (2005-05-01), Zhou
patent: 6934384 (2005-08-01), Hein et al.
patent: 6968049 (2005-11-01), Paoli et al.
patent: 7280062 (2007-10-01), Mills et al.
patent: 2005/0002517 (2005-01-01), Hein et al.
patent: 2005/0220293 (2005-10-01), Hein et al.
U.S. Appl. No. 11/240,206, filed Sep. 29, 2005, entitled “Pulse Metering Architecture” by Michael Mills, Marius Goldenberg, Yan Zhou, Jeffrey Whaley.
Silicon Laboratories, “Si3220/Si3225, Dual ProSLIC Programmable CMOS SLIC/Codec”; Jun. 2004; pp. 1-108.

Affiliated with

Also associated with

Rating

Method and apparatus for generating a metering pulse 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 and apparatus for generating a metering pulse, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for generating a metering pulse will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2663323