Telephone switching mechanism

Details Telephone switching mechanism Telephone switching mechanism

1997-07-11

1999-09-21

Chin, Wellington

Telephonic communications

Terminal

Housing or housing component

379428, 379440, 455575, 455 90, H04Q 732

Patent

active

059563982

ABSTRACT:
An electromechanical circuit uses a plunger to open and close a circuit as an indication of the position of a flip portion of a mobile communication device. The plunger includes an electrically conductive portion which slidingly contacts a contact pad. Upon contacting the contact pad, a change in logic states occurs which triggers circuitry to activate or de-activate the internal electronics within the communication device. This allows a user, for example, to activate a phone to receive a call without having to depress a specified switch. A common cam-follower mechanical configuration is used to cause the plunger to translate axially as the flip portion is moved.

REFERENCES:
patent: 4066857 (1978-01-01), Suska
patent: 4845772 (1989-07-01), Metroka et al.
patent: 4897873 (1990-01-01), Beutler et al.
patent: 5117073 (1992-05-01), Mischenko
patent: 5175759 (1992-12-01), Metroka et al.
patent: 5274882 (1994-01-01), Persson
patent: 5615259 (1997-03-01), Gilbert
patent: 5832080 (1998-11-01), Beutler et al.
patent: 5848152 (1998-12-01), Slipy et al.

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