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:
Oct. 19, 1993
Filed:
Oct. 03, 1990
Tu-Chuong Huynh, Manalapan, NJ (US);
Byung H Lee, Holmdel, NJ (US);
AT&T Bell Laboratories, Murray Hill, NJ (US);
Abstract
A facility is provided which determines the optimum phase of a sample clock signal that is used to acquire a copy of an image containing text. In particular, the phase of the sample signal is set to an initial value and is thereafter incremented by a predetermined amount of time following the acquistion of each of a predetermined number of copies of the image, in which each such copy is defined by respective pixel values. Upon acquiring a current copy of the image, a histogram is formed from ones of the pixel values and is stored in memory in place of a priorly stored histogram if the latest histogram contains more pixel values indicative of text than the priorly stored histogram. The phase of the sample clock signal is then adjusted to the phase associated with the histogram that is stored in memory following the last of such acquisitions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile