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:
Jun. 24, 2008
Filed:
Nov. 18, 2003
Kenji Kimura, Sapporo, JP;
Eiji Satake, Sapporo, JP;
Kenji Kimura, Sapporo, JP;
Eiji Satake, Sapporo, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An image sensor controller and methods achieve faster image reading speeds by controlling the frequency of image sensor transfer clocks φin accordance with the particular output period. Such an image sensor controller includes a drive controller that supplies to a transfer section of the image sensor transfer clocks φwhose clock frequency during dummy pixel output periods is faster than it is during an effective pixel output period, or whose clock frequency during non-reading pixel output periods is faster than it is during a reading pixel output period. A pattern selector selects among clock patterns in a table for setting φaccording to the output periods of the image sensor. Even when the clock frequency ofchanges, a transfer clock ADCK signal can be supplied at a constant clock frequency to an A/D converter.