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. 08, 2012
Filed:
Jun. 06, 2011
Hajime Matsuda, Osaka, JP;
Shigeo Nakamura, Osaka, JP;
Hajime Matsuda, Osaka, JP;
Shigeo Nakamura, Osaka, JP;
Keyence Corporation, Osaka, JP;
Abstract
Provided is a code reading device capable of reducing a time from start of reading of a symbol code until a decoded result is transmitted to an external device. The code reading device includes first and second CPUs that access a shared memory, an imaging element that optically reads the symbol code to generate a read image, and a DMAC that transfers the read image from the imaging element to the shared memory. The first CPU decodes the read image in the shared memory based on a command of the second CPU. The second CPU selectively executes any one of an imaging control task, a decode control task, and a decoded result transmission task, in which the imaging control task is given priority over the decode control task, and the decode control task is given priority over the decoded result transmission task.