Communications headset

Details Communications headset Communications headset

1986-10-31

1988-04-26

Ng, Jin F.

Telephonic communications

Supervisory or control line signaling

Substation originated

379430, H04M 105, H04M 130

Patent

active

047410302

ABSTRACT:
A cordless headset includes a headband, a tubular support having one end mounted on the headband, a housing mounted on the other end of the tubular support and having spaced apart opposed walls on the outer surface of which a plurality of telephone operating digits are arranged in a circular pattern for controlling output signals, aligned central apertures formed in the opposed walls of the housing, and a microphone positioned in the housing and aligned with the apertures.

REFERENCES:
patent: D226273 (1973-02-01), Tyson
patent: 299288 (1884-05-01), Stewart
patent: 1568721 (1926-01-01), Butcher et al.
patent: 2485405 (1949-10-01), Olney et al.
patent: 3781492 (1973-12-01), Cragg et al.
patent: 3786519 (1974-01-01), Aileo
patent: 3971900 (1976-07-01), Foley
patent: 4020297 (1977-04-01), Brodie
patent: 4042793 (1977-08-01), Bellenger

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