Mobile telephone having a power-conserving subroutine

Details Mobile telephone having a power-conserving subroutine Mobile telephone having a power-conserving subroutine

1992-02-10

1994-03-01

Kuntz, Curtis

Telephonic communications

Having light wave or ultrasonic link for speech or paging...

Including fiber optic link within telephone network

364707, H04M 1100, G06F 100

Patent

active

052915425

ABSTRACT:
A circuit arrangement for a mobile telephone comprises a microprocessor responsive to a clock signal for controlling its functions, and a signalling circuit, e.g. a modem which is coupled to the microprocessor to provide an output clock signal thereto. In the idle states of the processor, the output clock signal is stopped, using a stop signal from the microprocessor. This gives use to reduce power consumption and a consequential increase in battery life.

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Review of the Electrical Communication Laboratories, vol. 35, No. 2, Mar. 1987, Tokyo Japan, pp. 109-114, Yuki et al., "Design Considerations for Mobile Radio Units Used in High-Capacity Land Mobile Communications System".
Hewlett Packard Jounal, vol. 3, No. 6, Jun. 1983, Palo Alto, Calif., pp. 10-15, E. Brooks et al., "High Capacity Electronics System for a Compact, Battery Operated Computer".
Electronics International, vol. 53, No. 21, Sep. 1980, New York, pp. 123-126, Smith et al. "C-MOS Microprocessor Wakes Itself Up".
Patent Abstracts of Japan, vol. 9, No. 061 (E-303) Mar. 19, 1985, JP59200537 (Nippon Denshin Denwa Kosha).

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