The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 13, 1990

Filed:

Sep. 26, 1989
Applicant:
Inventor:

Anthony D Masterson, Cupertino, CA (US);

Assignee:

Apple Computer, Inc., Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307480 ; 307265 ; 307269 ; 328 58 ; 364200 ; 365233 ; 3652385 ;
Abstract

A circuit for providing control signals of selectable lengths capable of being driven off of either the rising or falling edge of a clock pulse, the circuit comprising apparatus for providing signals indicating a mode of operation for access to a matrix of memory elements, apparatus responsive to the signals provided by the apparatus for providing signals indicating a mode of operation for providing signals indicating a clock period during which a control signal is to commence and the edge of the clock signal at which such signal is to commence, and apparatus responsive to the signals provided by the apparatus for providing signals indicating a mode of operation for providing signals indicating a clock period during which a control signal is to terminate and the edge of the clock signal at which such signal is to terminate.


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