Apparatus for preventing transferring noise of digital signal

Details Apparatus for preventing transferring noise of digital signal Apparatus for preventing transferring noise of digital signal

1994-01-14

1996-05-07

Nelms, David C.

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Signal transmission integrity or spurious noise override

327384, 327391, 327165, 327166, 326 21, 326 27, H03K 1716, H03K 501

Patent

active

055149936

ABSTRACT:
An apparatus for preventing transferring noise of a digital signal comprises, a noise-transfer preventing circuit 11 which transfers a signal D whose potential represents data to be transferred originally in binary data and a signal DB whose potential represents the other data at the same time, inputs the signals D and DB at an input block 10 side, outputs one signal D as an input signal as a normal state when the signals D and DB are the potentials representing different data "1" and "0", and when the signals D and DB are the potentials representing same data, continues to output the signal previously outputted as the input signal as an abnormal state, whereby, at the time of transferring the digital signal, it can be avoided to transfer the level change according to fluctuations of the signal potential or the signal change on the other signal lines as the dat signal.

REFERENCES:
patent: 3493785 (1970-02-01), Rapp
patent: 3624518 (1971-11-01), Dildy, Jr.
patent: 4461964 (1984-07-01), Shiotari
patent: 4583007 (1986-04-01), Paski
patent: 4695743 (1987-09-01), Des Brisay, Jr.

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