Portable information processing system utilizing a wireless sele

Details Portable information processing system utilizing a wireless sele Portable information processing system utilizing a wireless sele

1995-06-07

1997-10-14

Harvey, Jack B.

G06F 130

Patent

active

056780508

ABSTRACT:
When a primary battery voltage detector of a the wireless selective call receiver detects the voltage drop of a primary batter, it transmits a voltage drop signal to a CPU. The CPU receives the voltage drop signal to transmit an alarm data to a control section of an information processing apparatus through an I/F circuit. The control section control a display section to display an alarm message and an speaker drive circuit such that an alarm sound is outputted from a speaker. Further, the CPU controls a power supply control circuit to connect a power supply of the information processing apparatus to the wireless selective call receiver without any instantaneous power down so that the selective call receiver can continuously receive an information and/or a program.

REFERENCES:
patent: 4868832 (1989-09-01), Marrington et al.
patent: 5163124 (1992-11-01), Yabe et al.
patent: 5430883 (1995-07-01), Horiuchi
patent: 5438678 (1995-08-01), Smith
patent: 5475271 (1995-12-01), Shibasaki et al.
patent: 5557738 (1996-09-01), Townsley et al.

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