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. 17, 1994
Filed:
Apr. 17, 1992
Applicant:
Inventors:
Robert H Lee, Palo Alto, CA (US);
John D Kenny, Sunnyvale, CA (US);
Assignee:
Picopower Technology, Inc., San Jose, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307267 ; 307269 ; 328 58 ;
Abstract
The time a microprocessor CPU must wait for memory access is controlled to be one of two values by stretching the CPU clock signal either a first time duration or a second time duration, depending on the expected delay caused by the memory access. The clock stretching is in increments of one quarter of the CPU clock period and is done with both the leading and trailing edges of the clock pulse.