Telephonic communications – Subscriber line or transmission line interface
Reissue Patent
2011-03-22
2011-03-22
Briney, III, Walter F (Department: 2614)
Telephonic communications
Subscriber line or transmission line interface
C379S413000, C379S322000
Reissue Patent
active
RE042237
ABSTRACT:
A voltage regulator circuit arrangement limits the DC voltage applied to a tip and ring amplifiers of a subscriber line interface circuit (SLIC), each of which has a first polarity input coupled to a first current flow path to which a DC input (battery) voltage is coupled. A first current source supplies a first current derived via a low pass filter path from that flowing through the first current flow path to a second polarity input node of the tip amplifier, while a second current source supplies a similarly low pass filter path-derived second current to a second polarity input node of the ring amplifier. A voltage regulator is coupled with the first current flow path and is operative to regulate the voltage at the first polarity inputs of the tip and ring amplifiers to a regulated voltage value Vreg, so that the magnitudes of the first and second currents are based upon the regulated voltage value Vreg.
REFERENCES:
patent: 4315207 (1982-02-01), Apfel
patent: 4631366 (1986-12-01), Takato et al.
patent: 4935960 (1990-06-01), Takato et al.
patent: 5160851 (1992-11-01), McAndrews
patent: 7130414 (2006-10-01), Enriquez et al.
Enriquez Leonel Ernesto
Youngblood Douglas Lawton
Briney III Walter F
Fogg & Powers LLC
Intersil America's Inc.
LandOfFree
Active mode line voltage regulator for ringing subscriber... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Active mode line voltage regulator for ringing subscriber..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Active mode line voltage regulator for ringing subscriber... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2697885