Telecommunications – Transmitter – Power control – power supply – or bias voltage supply
Patent
1986-05-22
1988-08-02
Griffin, Robert L.
Telecommunications
Transmitter
Power control, power supply, or bias voltage supply
455117, 340663, H01Q 1112, H04B 1104
Patent
active
047618248
ABSTRACT:
A battery-powered mobile communications unit for reception and transmission of signals in which the continued transmitter operation, following activation, is controlled in response to accurate detection of battery deterioration. The battery voltage is monitored by a reset circuit to detect any voltage drop that exceeds a predetermined threshold and a command unit responds to the reset circuit to turn the transmitter off as long as the battery voltage is below threshold and to turn the transmitter on when the battery voltage rises above threshold. The duration of the voltage drop is also measured to determine if the drop is instantaneous, due to interferences or extended due to a battery deterioration. If extended, the command unit will not turn the transmitter on, even though the reset circuit indicates a rise in battery voltage above threshold.
REFERENCES:
patent: 3670246 (1972-06-01), Gately
patent: 3911360 (1975-10-01), Kimzey
patent: 3969635 (1976-07-01), Wilke
patent: 4356481 (1982-10-01), Kuki
patent: 4367423 (1983-01-01), Hornung
patent: 4521912 (1985-06-01), Franke et al.
patent: 4709404 (1987-11-01), Tamura
Griffin Robert L.
Kuntz Curtis
NEC Corporation
LandOfFree
Battery-powered mobile communications apparatus having transmitt does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Battery-powered mobile communications apparatus having transmitt, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Battery-powered mobile communications apparatus having transmitt will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-715414