Coded signaling and control system

DETAILED DESCRIPTION The present invention may be summarized in that a selective signaling and control system includes a first network for generating a start and reset signal, a second network for alternately transmitting a shift and code bit signal, and a third network for transmitting a latch control signal; and furthr including a receiving assembly having a first circuit responsive to the first signal for assuming a data receive mode, a second circuit responsive to the alternate shift and data bit signals to store a transmitted code word, means comparing said code with a preselected code word and generating an output signal when the two code words are equal, and a network enabled by the output of the comparator to respond to said latch control signal for activating an output device.
It is an object of the present invention to transmit a coded signal for reception be only that receiver programmed for the transmitted code.
Another object of this invention is to construct an integrated circuit signaling system for remote control of selected functions or devices and having high noise and spurious signal immunity.
It is a further object of this invention to construct a coded signaling system in which the code word is an eight bit binary signal, each "true" bit being constructed of one of five discrete tone bursts.
The present invention is advantageous over prior art systems of this general type in the provision of high immunity from undesired signals and random noises, adaptability for integrated circuit construction, simplicity of design with resultant cost savings, flexibility and adaptability to any desired installation, and low maintenance and operating costs.
Other objects and advantages of the present invention will become apparent from the following description of a preferred embodiment when taken in conjunction with the accompanying drawings.