Communications: electrical – Continuously variable indicating – With meter reading
Patent
1981-01-05
1982-12-28
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
370 82, 371 70, 375117, 34082503, 34082521, G08C 2500, H04L 700, H04O 900
Patent
active
043664784
ABSTRACT:
Disclosed is a signal transmitting and receiving apparatus for transmitting and receiving parallel-by-word data signals, converting the parallel-by-word data signal to serial-by-word data signal, and transmitting the serial-by-word data signal to control units connected in a multi-drop connection configuration or receiving the signals transmitted from the control units.
An external control mode and an internal control mode in receiving the parallel-by-word data signal, a simulation mode, and the prevention of competing status between a write timing of the parallel-by-word data to a buffer memory and a read timing of the data for converting it to serial-by-word data are described.
REFERENCES:
patent: 3660606 (1972-05-01), De Witt
patent: 3700820 (1972-10-01), Blasbalg et al.
patent: 3855422 (1974-12-01), Cadiou et al.
patent: 3975712 (1976-08-01), Hepworth et al.
patent: 4017683 (1977-04-01), Pederson et al.
patent: 4070648 (1978-01-01), Mergenthaler et al.
patent: 4166272 (1979-08-01), Deck
patent: 4263673 (1981-04-01), Bingham et al.
Masuda Ikuro
Ogawa Seiichiro
Sakurai Jinichi
Shiono Shigeo
Shiraishi Hisayoshi
Hitachi , Ltd.
Yusko Donald J.
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