Multiplex communications – Wide area network – Packet switching
Patent
1988-01-06
1989-08-08
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
36518902, 36518912, H04J 100
Patent
active
048559946
ABSTRACT:
The bidirectional transmission for reading and writing data is performed between a write/read unit and a memory module using the contactless induction coupling of induction coils. The write/read unit frequency multiplexes a power source signal, a sync clock, and an enable clock and transmits the frequency multiplexed signals to the memory module. The memory module rectifies the received frequency multiplexed signals to produce an operating power source and to reproduce the sync clock and enable clock and to form an enable signal from the OR of both clocks. The write and read access information transmitted through another route is read in response to the reproduced sync clock and enable signal, thereby executing the writing and reading operations of a non-volatile memory.
REFERENCES:
patent: 3735266 (1973-05-01), Amitay
patent: 4731761 (1988-03-01), Kobayashi
patent: 4758995 (1988-07-01), Sato
Horinouchi Shinichi
Oba Masao
Takeuchi Kunihiko
Jung Min
Olms Douglas W.
Tokyo Keiki Company Ltd.
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