Communications: electrical – Continuously variable indicating – With meter reading
Patent
1996-07-24
1999-08-24
Holloway, III, Edwin C.
Communications: electrical
Continuously variable indicating
With meter reading
34082554, 34082569, G06F 704
Patent
active
059429852
ABSTRACT:
An automatic locking/unlocking device has a wireless lock device which includes a lock, a first memory for storing a lock controlling code, a first transmitter for transmitting a wireless transmission signal, a first receiver for receiving a wireless reception signal, a lock control circuit for generating a pilot signal by controlling the first transmitter, for comparing a lock access code included in the wireless reception signal with the lock controlling code when the wireless reception signal is received, releasing the locking function of the lock if the lock access code is identical to the lock controlling code, and locking the lock after a predetermined time has elapsed; and a wireless key device which includes a second memory for storing the lock access code, a second transmitter for transmitting the wireless reception signal, a second receiver for receiving the pilot signal, and a key control circuit for transmitting the lock access code when the pilot signal is received. The wireless lock device substantially continuously outputs the pilot signal in an idle state, and the lock controlling code is automatically transmitted when the wireless key device gets within a predetermined distance to receive the pilot signal.
REFERENCES:
patent: 4189712 (1980-02-01), Lemelson
patent: 4670746 (1987-06-01), Taniguchi et al.
patent: 4677284 (1987-06-01), Genest
patent: 4763121 (1988-08-01), Tomoda et al.
patent: 4794268 (1988-12-01), Nakano et al.
patent: 4809199 (1989-02-01), Burgess et al.
patent: 4897644 (1990-01-01), Hirano
patent: 5109221 (1992-04-01), Lambropoulos et al.
patent: 5134392 (1992-07-01), Takeuchi et al.
patent: 5204663 (1993-04-01), Lee
patent: 5319364 (1994-06-01), Waraksa et al.
patent: 5379033 (1995-01-01), Fujii et al.
patent: 5451934 (1995-09-01), Dawson et al.
patent: 5677672 (1997-10-01), Vogt et al.
patent: 5712626 (1998-01-01), Andreou et al.
Holloway III Edwin C.
Merz Edward
Samsung Electronics Co,. Ltd.
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