Emergency telephone communications device

Details Emergency telephone communications device Emergency telephone communications device

1990-04-05

1994-07-26

Dwyer, James L.

Telephonic communications

Emergency or alarm communications

Personal monitoring

379 51, 379 45, 379387, 379355, H04M 100

Patent

active

053331729

ABSTRACT:
An apparatus for emergency dialing and oneway communication by telephone includes an autodialing circuit for dialing a preselected emergency telephone number. The circuit is activated by a switch and provides communication of audio information from the vicinity of the device to an emergency services operator during an emergency situation such as a criminal assault of a convenience store. The apparatus is characterized by the presence of a microphone, and the absence of a speaker connection for transmitting the voice of the emergency services operator. In this manner, the criminal assailant is not made aware that police have been contacted.

REFERENCES:
patent: 3156909 (1964-11-01), Werk
patent: 3505476 (1970-04-01), Kelly, Jr. et al.
patent: 3567864 (1971-03-01), Palmer et al.
patent: 4371751 (1983-02-01), Hilligass, Jr. et al.
patent: 4513177 (1985-04-01), Nishino et al.
patent: 4608462 (1986-08-01), Blomley et al.
patent: 4866764 (1989-12-01), Barker, III
patent: 5086463 (1992-02-01), Vesely et al.

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