Remote control equipment and a control method thereof

Details Remote control equipment and a control method thereof Remote control equipment and a control method thereof

2003-02-21

2008-10-14

Zimmerman, Brian (Department: 2612)

Communications: electrical

Systems

Selsyn type

Reexamination Certificate

active

07436288

ABSTRACT:
Remote control equipment and a control method thereof, whereby load devices can be remotely controlled selectively through transmission and reception of a specific frequency signal using power and dedicated lines. The remote control equipment includes transmitting and receiving ends. The transmitting end includes a line filter, a power supply section, an oscillator/amplifier, a frequency, a remote control keyboard, a remote control signal controller, a telephone signal controller, a synchronous frequency-transmitter, and a light emitting section including an LED. The receiving end includes a synchronous frequency-detector, a signal latch section, a reverse signal converter, an optical transmitter, a relay driver, a detector, and a light emitting section including an LED. Information on the state of a load obtained by detecting a current in the load is reverse-transmitted to the transmitter to be displayed by the LED.

REFERENCES:
patent: 5777545 (1998-07-01), Patel et al.
patent: 5815086 (1998-09-01), Ivie et al.
patent: 6229432 (2001-05-01), Fridley et al.
patent: 6750781 (2004-06-01), Kim
patent: 5-115088 (1993-05-01), None
patent: 9-233568 (1997-09-01), None
patent: 2000-324569 (2000-11-01), None
Abstract of KR9513166, Appl. No. 1992-15277, published Oct. 25, 1995, entitled “Remote Switching Device Using Frequency Signal”.

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