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:
Nov. 10, 1998
Filed:
Nov. 18, 1996
Applicant:
Inventors:
Boaz Eitan, Ra'anana, IL;
Chang Hee Hong, Fremont, CA (US);
Assignee:
Waferscale Integration, Inc., Fremont, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307 66 ; 307 64 ; 395750 ; 365229 ; 326 58 ; 326 85 ; 326 87 ; 326 91 ;
Abstract
The present invention is a battery backed output buffer which provides a well-defined signal, even during battery power. The buffer includes a regular output buffer for providing output data during operation with a main power supply and for switching to a tri-state during battery power. The buffer also includes a configurable battery backed output buffer which provides a predetermined output signal during battery operation and produces a signal in the tri-stated during main power operation.