Invention Grant
- Patent Title: Printed circuit board and differential signaling structure
- Patent Title (中): 印刷电路板和差分信号结构
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Application No.: US11486089Application Date: 2006-07-14
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Publication No.: US07545652B2Publication Date: 2009-06-09
- Inventor: Hiroyuki Yamaguchi
- Applicant: Hiroyuki Yamaguchi
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2005-209881 20050720; JP2006-186912 20060706
- Main IPC: H05K1/18
- IPC: H05K1/18

Abstract:
Provided is a system adopting a differential signaling system including a low frequency signaling line arranged to be adjacent to a pair of differential signaling lines in parallel to each other, for transmitting a signal having a frequency which is smaller than a frequency of a signal to be transmitted through the pair of differential signaling lines, in which a transmission end of the low frequency signaling line is connected to a ground pattern through a first capacitive element, and a reception end of the low frequency signaling line is connected to the ground pattern through a second capacitive element. Thus, it is possible to provide, easily and at a low cost, a differential signaling system in which a common mode noise is eliminated without increasing the number of pins.
Public/Granted literature
- US20070018749A1 Printed circuit board and differential signaling structure Public/Granted day:2007-01-25
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