Random access, multiple station communication system

Claim 1

A random access, multiple station communication system comprising: a plurality of stations interconnected by transmit and receive conductors, each of said stations having transmitter means to transmit on various selected bands of transmission frequencies over the said interconnecting transmit and receive conductors a signal consisting of carrier and data components and receiver means adapted to receive transmissions from other stations only in said selected frequency band assigned to and identified with said receiver means; a signal generator connected by control conductors to the said stations to generate intervaled pulse trains which are impressed on said control conductors evenly spaced over time as radio frequency signals in a frequency band different from the said various selected bands of transmission frequencies; control means connected to said control conductors to operate and control the said transmitter and receiver means, said control means comprising means to generate coded control pulses and means to impress the said coded control pulses on the said intervaled pulse trains; each of the said stations including means to achieve synchronization in phase and frequency with the said intervaled pulse train radio frequency signals; and means to interrupt the transmission of at least one of the said carrier and data components when the said control means receive and send said coded control pulses which consists of electromagnetic pulses or the absence thereof within the said intervaled pulse trains and convey control information between said stations to effect system control functions; and wherein a first said station including memory means and means to transfer an identity signal of at least one other station transmitted to the said first station to the said memory means.