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:
Mar. 19, 2013
Filed:
Feb. 08, 2010
Jose Tejada, Valencia, ES;
Rafael Dominguez-castro, Seville, ES;
Fernando Medeiro-hidalgo, Seville, ES;
Francisco J. Jimenez-garrido, Seville, ES;
Jose Tejada, Valencia, ES;
Rafael Dominguez-Castro, Seville, ES;
Fernando Medeiro-Hidalgo, Seville, ES;
Francisco J. Jimenez-Garrido, Seville, ES;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
This invention is an amplification circuit which limits increased power consumption and circuit surface area use and an imaging device including this amplification circuit. After initially discharging a capacitor, a signal charge corresponding to the difference between pixel signals is transferred repeatedly to the capacitor during an integration phase storing a signal charge proportional to the number of repetitions. The output of amplification is the signal charge accumulated in the capacitor. The gain is independent of the capacitor capacitance ratio. Thus the capacitor size can be smaller than conventional amplification circuits.