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:
May. 24, 2011
Filed:
May. 19, 2006
Isao Takahashi, Yokohama, JP;
Isao Takahashi, Yokohama, JP;
Jai Corporation, Yokohama-Shi, Kanagawa, JP;
Abstract
A solid-state image-pickup device signal processing apparatus includes a solid-state image-pickup device, an amplifier for amplifying an output signal of the solid-state image-pickup device, an A/D conversion circuit for converting an analog output signal of the amplifier to a digital signal, a digital correlated double sampling circuit for removing noises, and a device for supplying an optional-value direct current signal to a video signal portion of a digital output signal of the A/D conversion circuit. The digital correlated double sampling circuit subtracts a field-through portion of the digital output signal from the video signal portion including the optional-value direct current signal added thereto so that the optional-value direct current signal remains after subtracting the field-through portion from the video signal portion including the optional-value direct current signal when the solid-state image-pickup device image-picks up a dark space.