Apparatus for use with a computing device for generating a subst

Details Apparatus for use with a computing device for generating a subst Apparatus for use with a computing device for generating a subst

1990-08-31

1991-10-22

MacDonald, Allen R.

Boots, shoes, and leggings

3642409, 3642689, G06F 1516, G06F 1116

Patent

active

050601385

ABSTRACT:
The invention is an apparatus for use with a computing device for generating a substitute acknowledgement to a first input signal when the computing device is in an operational hiatus. The apparatus comprises a logical processing circuit for indicating presence of the first input signal depending upon the state of a second input signal, and a logical circuit for producing an output signal which is representative of a selection of one of the plurality of logical inputs. The selection of logical inputs is determined by the state of the second input signal. The first input signal is a hold request signal and comprises a first logical input to the logical processing circuit. A second logical input is a hold acknowledgement signal which is generated by the computing device in response to the presence of the first input signal when the computing device is not in an operational hiatus.

REFERENCES:
patent: 4575826 (1986-03-01), Dean
patent: 4590554 (1986-05-01), Glazer et al.
patent: 4698748 (1987-10-01), Juzswik et al.
patent: 4965714 (1990-10-01), Knecht

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