Wireless switch detection system

Details Wireless switch detection system Wireless switch detection system

1998-04-30

2000-02-15

Lee, Benjamin C.

Communications: electrical

Condition responsive indicating system

Specific condition

3405721, 3405725, 3405728, 34082554, 340679, 340687, 3406864, 200 6158B, 280735, 180262, 180268, G08B 2100

Patent

active

060257830

ABSTRACT:
A wireless switch detection system (10, 100) includes central transmitter (22, 109) for transmitting a transmitter signal. The system (10, 110) also includes a remote switch (28, 128) spaced apart from the central transmitter (22, 109) and having at least two states. A tag circuit (32, 136) is responsive to and powered by the transmitter signal. The tag circuit (32, 136) detects the state of the remote switch (28, 128) and, in response to the transmitter signal, provides a tag signal indicative of the state of the switch (28, 128). A central receiver (26, 111) receives the tag signal.

REFERENCES:
patent: 3338100 (1967-08-01), Takami
patent: 3833781 (1974-09-01), Rumpf
patent: 4071875 (1978-01-01), Kochem
patent: 4984651 (1991-01-01), Grosch et al.
patent: 5023408 (1991-06-01), Murakami et al.
patent: 5338063 (1994-08-01), Takeuchi et al.
patent: 5347262 (1994-09-01), Thurmond et al.
patent: 5541574 (1996-07-01), Lowe et al.
patent: 5571253 (1996-11-01), Blackburn et al.
patent: 5605348 (1997-02-01), Blackburn et al.
patent: 5829782 (1998-11-01), Breed et al.

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