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. 19, 2010
Filed:
Jan. 18, 2007
Rolf Sundblad, Ljungsbro, SE;
Rolf Sundblad, Ljungsbro, SE;
Zoran Corporation, Sunnyvale, CA (US);
Abstract
A latch circuit () comprising a first input device () in a first branch () and a second input device () in a second branch (). The latch circuit comprises a first estimator unit () adapted to generate a first estimate of a current generated by the first input device () and a second estimator unit () adapted to generate a second estimate of a current generated by the second input device (). The latch circuit further comprises a control-voltage unit () operatively connected to the first and the second estimator unit (). The control-voltage unit is adapted to generate a control voltage based on a sum of the first estimate and the second estimate. Further, the latch circuit () comprises a first and a second voltage-controlled current unit () adapted to generate currents at least based on the control voltage. The first voltage-controlled current unit () is operatively connected to the first branch (). The second voltage-controlled current unit () is operatively connected to the second branch (). A method for compensation for common-mode variations in the latch circuit () is also disclosed.