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.
Patent No.:
Date of Patent:
May. 15, 1990
Filed:
Jul. 01, 1987
James R Robb, Marion, IA (US);
Abstract
A timing circuit is disclosed for use with microprocessors which perform bit slicing within their arithmetic logic units. This timing circuit combines the synchronization of digital data inputs with the generation of the clocking signal, by dividing an oscillator frequency signal into the clocking signal, using a number of cycles of the oscillator frequency signal to synchronize the digital data inputs with the clocking signal, and outputting a synchronized clocking signal as soon as the digital data input signals are synchronized with the clocking signals. In a situation where the clock is derived by dividing the oscillator frequency by four, two of the four oscillator cycles are used to resynchronize the test input. The waste of overhead wait states and individual input resynchronization circuits are eliminated.