Multidirectional control switch and multidirectional input...

Details Multidirectional control switch and multidirectional input... Multidirectional control switch and multidirectional input...

2005-01-11

2005-01-11

Donovan, Lincoln (Department: 2832)

Electricity: circuit makers and breakers

Multiple circuit control

Pivoted contact

C200S0050EA, C338S099000

Reexamination Certificate

active

06841743

ABSTRACT:
A multidirectional control switch of the present invention is used in a variety of electronic apparatuses including a portable telephone and a personal digital assistant. A first switch contact of this switch outputs a first signal continuously varying as a top surface of a substantially disc-shaped operating member undergoes a sliding press along a locus substantially in arc form. With a stronger press, a second switch contact outputs a second signal. The multidirectional control switch has a simple structure and can be reduced in size because these two switch contacts are integrally formed, thereby eliminating a need to combine discrete elements.

REFERENCES:
patent: 4246452 (1981-01-01), Chandler
patent: 5313027 (1994-05-01), Inoue et al.
patent: 5689285 (1997-11-01), Asher
patent: 6087925 (2000-07-01), DeVolpi
patent: 6313731 (2001-11-01), Vance
patent: 6399904 (2002-06-01), Mimata
patent: 2002-117751 (2002-04-01), None
patent: 0213219 (2002-02-01), None

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