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. 29, 1999
Filed:
Dec. 15, 1995
Hitoshi Saito, Yokohama, JP;
Toru Maeda, Mitaka, JP;
Takaaki Hashimoto, Hiratsuka, JP;
Masanori Momose, Tokyo, JP;
Naoki Sugawara, Yokohama, JP;
Shinichiro Kohri, Kawasaki, JP;
Makoto Kobayashi, Kawasaki, JP;
Masashi Kimura, Kawasaki, JP;
Koichiro Ohtsuka, Kawasaki, JP;
Seiji Ohmori, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A communication device includes a storage medium for storing a program and information used to detect any error in the program, to prevent the communication device from further abnormal operation when an error occurs in the stored program. The occurrence of an error in the program is detected by performing a calculation based on the stored program, and comparing the result of the calculation with the above-described information stored in the storage medium. A predetermined operation is further performed depending on the result of the comparison.