TODAY’S PATENT – REMOTE CONTROL SYSTEM, COMPONENTS AND METHODS
This invention was invented jointly by Raymond W. Simpson, Donald G. Chandler, John Bowers and was assigned to Hillier Tech LP on 25th April 1990 which was later granted patent on the date 19th February 1991 by the USPTO bearing grant number.US4995053A. The current invention is about remote-control systems. The traditional “three way” switch arrangement used to control a ceiling light from either end of a stairwell necessitates a switching branch extending from the power supply wiring to one switch, from that switch to the other switch, and from the other switch to the light. This arrangement is complex and costly. The invention is especially used for controlling electrical devices in a building and appliances.
The principle behind this Remote-control mechanism, works by Controlling the electric power flow which is provided by a system for remote control of electrical components in a building or an electrical appliance in response to a spectrum of radio signals which are spread across the landscape, are the propagated through free space within the building. The spread spectrum signal receiver can be installed entirely within a building wiring junction box or entirely within an appliance housing. The transmitter does not need to be wired into the building or appliance. This process is cost effective.