Information processing system connected by radio communication

Details Information processing system connected by radio communication Information processing system connected by radio communication

1994-08-16

1997-12-09

Zimmerman, Brian

Communications: electrical

Continuously variable indicating

With meter reading

455343, 364518, H04Q 100

Patent

active

056964994

ABSTRACT:
To control an information processing system in which a host unit is connected by radio communication to a slave unit, the host unit transmits data and a selected one of plural carrier waves both containing ID information to select a specific information process. The slave unit recognizes the ID information which corresponds to the frequency of the selected carrier wave and performs its operation accordingly. A difference in frequencies of the carrier waves may be used as a type of ID information.

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patent: 4539437 (1985-09-01), Giacopelli
patent: 4722064 (1988-01-01), Suzuki
patent: 5003578 (1991-03-01), Lin
patent: 5027428 (1991-06-01), Ishiguro et al.

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