Oscillators – Combined with particular output coupling network
Reexamination Certificate
2005-03-29
2005-03-29
Kinkead, Arnold (Department: 2817)
Oscillators
Combined with particular output coupling network
C331S143000, C361S203000, C327S385000, C327S379000
Reexamination Certificate
active
06873216
ABSTRACT:
In a chattering eliminating apparatus, a coincidence circuit receives an input signal of the apparatus and an output signal of the apparatus to determine whether or not a level of the input signal of the apparatus is the same as a level of the output signal of the apparatus. An oscillation circuit carries out an oscillation operation only when the level of the input signal of the apparatus is not the same as the level of the output signal of the apparatus. A counter counts an output signal of the oscillation circuit, and is reset when the level of the input signal of the apparatus is the same as the level of the output signal of the apparatus. An output signal generating circuit inverts the level of the output signal of the apparatus when a counter value of the counter reaches a predetermined value.
REFERENCES:
patent: A-2-162821 (1990-06-01), None
patent: A-4-274613 (1992-09-01), None
patent: A-5-83093 (1993-04-01), None
Kinkead Arnold
NEC Corporation
Scully Scott Murphy & Presser
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