Telecommunications – Transmitter and receiver at separate stations
Patent
1991-07-30
1993-03-09
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at separate stations
455 383, 455343, 323222, 323284, H04Q 302, H04Q 714
Patent
active
051932113
ABSTRACT:
In a radio pager, the front end of the pager is powered by a battery. A decoder processes an incoming signal received by the front end and generates a first or a second signal when it is in an active state or an inactive state, respectively. A high duty-ratio pulse signal or a low duty-ratio pulse signal is generated in response to the first and second signals from the decoder, respectively. A voltage inducing circuit is connected across the terminals of the battery to respond to the high duty-ratio and low duty-ratio pulse signals by allowing a current to periodically pass through an inductor for a varying duration proportional to the duty ratio of either of the pulse signals to cause a voltage higher than the battery voltage to be induced in the inductor. A capacitor coupled to the inductor stores DC energy proportional to the duration of the current and supplies power to the decoder. A power savings circuit is provided for comparing the voltage developed in the capacitor with a reference voltage for ceasing the voltage in the capacitor to increase when it is higher than the reference voltage.
REFERENCES:
patent: 4634956 (1987-01-01), Davis et al.
patent: 4755816 (1988-07-01), DeLuca
patent: 4814684 (1989-03-01), McCurdy
patent: 4955075 (1990-09-01), Anderson
patent: 5028861 (1991-07-01), Pace et al.
Eisenzopf Reinhard J.
Keough Timothy H.
NEC Corporation
LandOfFree
Power saving DC-DC converter for radio pagers 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 saving DC-DC converter for radio pagers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power saving DC-DC converter for radio pagers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-216736