Cellular telephone security adapter and method

Details Cellular telephone security adapter and method Cellular telephone security adapter and method

1997-04-25

1998-04-28

Gregory, Bernarr E.

Cryptography

Electric signal modification

Including particular structure or housing

380 53, 380 59, 379441, 379447, 379450, 455550, 455575, 455 90, 455347, 455349, H04L 910

Patent

active

057455791

ABSTRACT:
An adapter (10) for a cellular telephone includes a first coupling apparatus (21) disposed on a first surface (30) of the adapter (10). The first coupling apparatus (21) is for engaging coupling apparatus disposed on a rear surface of the cellular telephone. The adapter (10) also includes an earpiece (40) coupled to a side (33) of the adapter (10) and a second coupling apparatus (23, 24) disposed on a second surface (32) of the adapter (10). The second coupling apparatus (23, 24) engages coupling apparatus disposed on a power source. The earpiece (40) comprises a speaker electrically coupled to connections on a connector for tapping an external audio output of a cellular telephone. The speaker (40) is constrained to maintain a position within one-half centimeter of the side (33) of the adapter (10). An outer shell of the earpiece (40) is connected to the side (33) of the adapter (10) and protrudes therefrom by a distance of less than a centimeter.

REFERENCES:
patent: 3114800 (1963-12-01), Simpkins
patent: 4593155 (1986-06-01), Hawkins
patent: 4904549 (1990-02-01), Goodwin et al.
patent: 5242767 (1993-09-01), Roback et al.
patent: 5308716 (1994-05-01), Shababy et al.
patent: 5366826 (1994-11-01), McCormick
patent: 5517683 (1996-05-01), Collett et al.

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