Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Patent
1997-02-28
1999-01-05
Wells, Kenneth B.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
327 75, 327 76, 327206, 327333, H03K 5153
Patent
active
058567500
ABSTRACT:
In an interface circuit having a transmitting side circuit, a receiving side circuit and a transmission path connecting the transmitting side circuit and the receiving side circuit in a transmission system for transmitting a predetermined signal between the transmitting and receiving sides, the receiving side circuit has a receiver circuit having threshold control section for independently controlling a logical threshold value corresponding to rise of a received transmitting signal from low level to high level and a logical threshold value corresponding to fall of the received transmitting signal from high level to low level, and a control circuit for controlling the logical threshold values of the receiver circuit through the threshold control section in response to a voltage change in the transmitting signal.
REFERENCES:
patent: 4717839 (1988-01-01), Miller
patent: 4743779 (1988-05-01), Valley
patent: 5497112 (1996-03-01), Hoang
patent: 5614857 (1997-03-01), Lim et al
NEC Corporation
Wells Kenneth B.
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