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. 16, 1976
Filed:
May. 27, 1975
Applicant:
Inventors:
Seiichi Yasumoto, Hitachi, JA;
Kazuhiko Kobayashi, Hitachi, JA;
Isao Yasuda, Hitachi, JA;
Ken Itoh, Kokubunji, JA;
Assignees:
Hitachi, Ltd., BOTH OF, JA;
Japanese National Railways, BOTH OF, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L / ; H03K / ; G06F / ; G05B / ;
U.S. Cl.
CPC ...
3401 / ; 3401462 ;
Abstract
A signal checking system for use in a hardware system having a converter for converting coded input signals consisting of a plurality of bits into corresponding individual signals, wherein undesirable selection of an erroneous output and multiple outputs by the converter is detected by means adapted for checking the relation between the input to the converter and the output of a first coder connected to the converter and checking the complementary relation between the output of the first coder and the output of a second coder connected to the converter.