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:
Sep. 11, 1990
Filed:
Aug. 30, 1989
Susumu Uemura, Kyoto, JP;
Hiroshi Tsujioka, Nara, JP;
Yasuhumi Yatsuzuka, Yamatokoriyama, JP;
Tadashi Tomino, Yamatokoriyama, JP;
Shigeo Yoneda, Yamatokoriyama, JP;
Shigeru Shindoh, Yamatokoriyama, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A display data processing device for processing bar code data displayed on a display screen such as a television monitor by an interlaced scanning process includes a photosensor for reading bar code data displayed on the screen, a counter circuit for counting the coded data bits read by the photosensor means to determine whether the data is displayed by an odd-number field or an even-number field and which produces a signal corresponding to the result of the determination. This signal is used in conjunction with a plurality of timer circuits which provide signals corresponding to the duration of odd and even number field scanning periods to ensure accurate storing of data in a shift register which is provided with the output signals of the photosensor.