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. 27, 2001
Filed:
Mar. 24, 1998
Mitsuo Watanabe, Kawasaki, JP;
Isao Iwaguchi, Kawasaki, JP;
Shinichi Sato, Kawasaki, JP;
Hiroaki Kawai, Kawasaki, JP;
Motohiko Itoh, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A double-reading preventive control processing unit, when demodulated data corresponding to a whole bar code is obtained in an M10-OK buffer, notifies a reading-OK processing unit of this demodulated data on condition that a double-reading preventive timer is not actuated, stores a single-reading multi-stage buffer with this demodulated data, and actuates the double-reading preventive timer. The single-reading multi-stage buffer is capable of storing plural demodulated data in sequence from the latest one, of which the reading-OK processing unit has been notified. When demodulated data is newly obtained before the double-reading preventive timer makes a time-up, the double-reading preventive control unit checks whether or not the new demodulated data is identical with the demodulated data stored in the single-reading multi-stage buffer. When identical, this new piece of demodulated data is discarded. Whereas when not identical, the reading-OK processing unit is notified of this new demodulated data, and the single-reading multi-stage buffer is stored with the same data. The double-reading preventive timer is then re-started.