Electrostatic discharge protection device

Details Electrostatic discharge protection device Electrostatic discharge protection device

1987-05-20

1989-09-19

Ng, Jin F.

Telephonic communications

Terminal

Housing or housing component

361 91, 361117, 361118, 361119, 379433, 379440, 379451, H04R 103, H02H 104, H02H 322, H05F 300

Patent

active

048688762

ABSTRACT:
An electrically conductive network which, at one end, has a low-resistance connection with a user's hand and, at the other end, has a high-resistance connection with ground. This protects electrical equipment such as a telephone keyset from electrostatic discharge and also protects the user from unpleasantly high discharge currents.

REFERENCES:
patent: 3665570 (1972-05-01), Brooks
patent: 4040120 (1977-08-01), Geadah et al.
patent: 4271333 (1981-06-01), Adams et al.
patent: 4303960 (1981-12-01), Sherwood et al.
patent: 4440980 (1984-03-01), Bakker
patent: 4440990 (1984-03-01), Nozaki
patent: 4456800 (1984-06-01), Holland
patent: 4586106 (1986-04-01), Frazier
patent: 4667266 (1987-05-01), Masuoka et al.
patent: 4821320 (1989-04-01), Andert et al.

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