Digital signal input device and method of controlling the...

Details Digital signal input device and method of controlling the... Digital signal input device and method of controlling the...

2008-10-07

2010-11-09

Le, Que T (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S2140LS

Reexamination Certificate

active

07829836

ABSTRACT:
A digital signal input device has a first input terminal and a second input terminal, a charging circuit connected between the first input terminal and the second input terminal, and a digital signal detection unit that outputs a digital signal of a logical value corresponding to a level of a charging voltage to an internal circuit. A pulse control unit generates a pulse signal having a fixed period using designated pulse width and pulse period. A switching element is provided between the charging circuit and the first input terminal or the second input terminal, which controls a period of applying a DC voltage to the charging circuit using a pulse width of the pulse signal.

REFERENCES:
patent: 6525542 (2003-02-01), Price
patent: 7045990 (2006-05-01), Takimoto et al.
patent: 58-004403 (1983-01-01), None
patent: 58-019031 (1983-02-01), None
patent: 59-146305 (1984-08-01), None
patent: 64-049978 (1989-02-01), None
patent: 1-237702 (1989-09-01), None
patent: 3-271818 (1991-12-01), None
patent: 2002-084169 (2002-03-01), None

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