Method and apparatus for controlling selectable functions of an

Details Method and apparatus for controlling selectable functions of an Method and apparatus for controlling selectable functions of an

1997-01-07

1999-09-28

Wells, Kenneth B.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

326 30, H03L 500

Patent

active

059594896

ABSTRACT:
An apparatus and method for providing both switch control and processor control over selectable functions of an external circuit. The present invention provides a control circuit having a single input/output port through which the control circuit reads a present function of the external circuit as controlled by the switch circuit, and generates a control signal to override the switch circuit control when the present function is not the same as a desired function.

REFERENCES:
patent: 4748426 (1988-05-01), Stewart
patent: 5581201 (1996-12-01), Sonner et al.
patent: 5731711 (1998-03-01), Gabara

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