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:
Nov. 18, 2014
Filed:
Apr. 05, 2013
Sumihiro Inokuchi, Kanagawa, JP;
Sumihiro Inokuchi, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
An electronic apparatus includes a connection-state detection circuit. The circuit includes a first circuit board; a plurality of second circuit boards that each exchange a signal with the first circuit board; a plurality of connectors that connect the first circuit board and each of the second circuit boards, respectively; a transmitting unit that transmits a connection-state detection signal from the first circuit board to each of the second circuit boards via the connectors; a control unit that causes the second circuit boards to return response signals to the first circuit board in response to the received connection-state detection signal via the connectors at different times that are shifted from each other and are respectively allocated to the second circuit boards; and a detecting unit that detects whether the response signal returned from each of the second circuit boards is received to detect a connection state of each of the connectors.