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:
Sep. 07, 1999
Filed:
Dec. 15, 1997
Applicant:
Inventors:
Shawn A Fahrenbruch, Dallas, TX (US);
Steven L Dondershine, Dallas, TX (US);
Lundy Taylor, Dallas, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H03B / ;
U.S. Cl.
CPC ...
331 57 ; 327278 ; 327281 ; 3311 / ;
Abstract
A ring oscillator includes a plurality of inverting delay elements connected in a ring. Each inverting delay element includes an inverter having an output node. The oscillator also includes a programmable current circuit operable to rob a variable amount of current from the output node of the inverter to control the duration of a delay period associated with the delay element.