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:
Jan. 03, 2017
Filed:
Feb. 24, 2015
Qualcomm Incorporated, San Diego, CA (US);
Joshua Lance Puckett, Cary, NC (US);
Anthony Dale Klein, Raleigh, NC (US);
Kaushik Viswanathan, Raleigh, NC (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Aspects disclosed herein describe a keeper circuit that adapts to variations in the fabrication process used to manufacture a dynamic circuit. The different characteristics of the circuit elements may cause a keeper circuit to behave in an unintended manner. In one example, a logical state of the dynamic circuit may be erroneously changed because of a strong (i.e., leaky) NMOS transistor in a pull down or discharge path. An adaptive keeper circuit, however, is designed to prevent such unintended behavior regardless of any change in the characteristics of the circuit elements in the dynamic circuit. The adaptive keeper circuit matches the behavior of the pull down path and prevents the pull down path from erroneously changing the logical state stored by the dynamic circuit.