Digitally coded electrical supply system
First Claim
1. In a digitally coded electrical supply system, the combination comprising a code transmission cable having a plurality of code transmission conductors therein, code generator means being connected to said plurality of code transmission conductors for sequentially and cyclically producing digitally coded electrical pulses simultaneously in said code transmission conductors corresponding to respective ones of a plurality of numbers, load decoder means being connected to said code transmission conductors for decoding one of said numbers and for producing a digital output signal when both said load decoder means is activated and said one number is digitally encoded into said code transmission conductors and activating means being connected to said load decoder means for selectively activating said load decoder means.
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Abstract
A digitally coded electrical supply system is provided for the selective control, through a plurality of code transmission conductors, of electrical power through a single power bus to a large plurality of electrical loads. The system includes a number generator for sequentially and cyclically producing digitally coded numbers into a plurality of code transmission conductors, a plurality of load decoders, a plurality of power switches, a power bus and a plurality of electrical loads. The system also includes a plurality of switch decoders, and a plurality of electrical switches, each switch connecting one of the switch decoders to one of the load decoders through a common activator conductor. In operation, the closing of any of the electrical switches is effective, in cooperation with the connected one of the switch decoders and the common activator cable, to activate an associated one of the load decoders and to supply electrical power to the associated one of the electrical loads.
76 Citations
19 Claims
- 1. In a digitally coded electrical supply system, the combination comprising a code transmission cable having a plurality of code transmission conductors therein, code generator means being connected to said plurality of code transmission conductors for sequentially and cyclically producing digitally coded electrical pulses simultaneously in said code transmission conductors corresponding to respective ones of a plurality of numbers, load decoder means being connected to said code transmission conductors for decoding one of said numbers and for producing a digital output signal when both said load decoder means is activated and said one number is digitally encoded into said code transmission conductors and activating means being connected to said load decoder means for selectively activating said load decoder means.
- 17. A digitally coded electrical system for an automobile which comprises a digital clock producing spaced electrical pulses, digitally coded number generator means having an input pulse conductor connected to said digital clock to receive said spaced electrical pulses therefrom and having a plurality of code output conductors and sequentially and cyclically producing digitally coded electrical pulses simultaneously in said code output conductors corresponding to respective ones of a plurality of numbers, a code transmission cable having a plurality of code transmission conductors each connected to one of said code output conductors, switch decoder means having a plurality of code input conductors, each connected to respective ones of said code transmission conductors having an output activating conductor and being coded to one of said numbers for producing a cyclic and digital activating signal in said output activating conductor as said digitally coded number generator means cyclically generates said one number, an electrical switching device having an input pole connected to said output activating conductor having an output pole and being operable between conducting and nonconducting states, load decoder means having a plurality of code input conductors, each connected to respective ones of said code transmission conductors having an input activating conductor connected to said output pole and having a power switch activating conductor for delivering a digital output signal to said power switch activating conductor when said switch decoder means and said electrical switching device cooperate to supply said cyclic and digital activating signal to said input activating conductor of said load decoder simultaneously with the supply to said load decoder means of electrical pulses that correspond to said one number, a power bus conductor, and power switching means having a switching conductor connected to said power switch activating conductor having a power input conductor connected to said power bus conductor and having a power output conductor for electrically communicating said power input conductor with said power output conductor when said digital output signal is supplied to said switching conductor and for maintaining electrical communication between said power conductors for a period of time in excess of that in which said digitally coded number generator means cyclically repeats the encoding of said one number into said transmission conductors.
Specification