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. 25, 2003
Filed:
Jul. 25, 2000
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A fault-detecting device used in a communication system and capable of judging correctly that a fault exerting an adverse effect with certainty on the transmission/reception operation has occurred in two-wire transmission lines. The fault-detecting device compares magnitudes between levels of information signals inputted through each of the two-wire transmission lines to obtain a resulting value as a main reception signal; compares magnitudes between a level of information signals inputted through each of the two-wire transmission lines and a first or second threshold value to obtain a resulting value as a first or second individual reception signal; determines a mismatch between the main reception signal and the first individual reception signal at a predetermined timing and generating a first mismatch detection signal when the mismatch has occurred; generates a first fault detection signal indicating a fault in the one of the two-wire transmission lines in accordance with a frequency of occurrence of the first mismatch detection signal; determines a mismatch between the main reception signal and the second individual reception signal at the predetermined timing and generating a second mismatch detection signal when the mismatch has occurred; and generates a second fault detection signal indicating a fault in the other one of the two-wire transmission lines in accordance with a frequency of occurrence of the second mismatch detection signal.