Radio pager having optional annunciating means

Details Radio pager having optional annunciating means Radio pager having optional annunciating means

1980-01-03

1982-09-28

Yusko, Donald J.

Communications: electrical

Systems

Nonselective paging

455233, G08B 700, H04B 504, H04M 1102

Patent

active

043520910

ABSTRACT:
A radio paging receiver uses a receiver section for receiving and demodulating paging signals. A decoder section decodes the paging signals and a tone is generated in response thereto. When the center of slide switch is in normal position, the tone signals are rectified by a diode and applied to a speaker in order to generate subscriber alert tones. When the center of slide switch is in vibration position, the speaker does not generate any audible tones while a rectifier-integrator section is turned on to rectify and integrate the tone signals. The rectified and integrated tone signals activate a mechanical vibrator to tactilely inform the subscriber that he is being paged. The decoder section has a common output terminal for both the audible alert and the tactile vibration alert.

REFERENCES:
patent: 3716848 (1973-02-01), Schonholtz et al.
patent: 4072903 (1978-02-01), Harris

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