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:
Sep. 19, 2017
Filed:
Apr. 10, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Masanori Kikuchi, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A first reception circuit and a second reception circuit are mounted on a printed circuit board, and receive signals via wiring thereof from a transmission circuit. The printed wiring board includes a trunk wiring, a first branched line branching from a first branch connection point, and a second branched line branching from a second branch connection point in order. A wiring area between the start end and the first branch connection point is divided into a first wiring portion and a second wiring portion, in order from the start end, and a wiring area between the first branch connection point and the second branch connection point is a third wiring portion. The characteristic impedance of the first wiring portion is set to equal or lower than the characteristic impedance of the third wiring portion, and the characteristic impedance of the second wiring portion is set higher than the characteristic impedance of the first wiring portion.