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:
Feb. 26, 2013
Filed:
Nov. 17, 2009
Po-chuan Hsieh, Taipei Hsien, TW;
Hsiao-yun Su, Taipei Hsien, TW;
Yu-chang Pai, Taipei Hsien, TW;
Shou-kuo Hsu, Taipei Hsien, TW;
Po-Chuan Hsieh, Taipei Hsien, TW;
Hsiao-Yun Su, Taipei Hsien, TW;
Yu-Chang Pai, Taipei Hsien, TW;
Shou-Kuo Hsu, Taipei Hsien, TW;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Abstract
A signal transmission apparatus includes two circuit layers. First and second ground sheets are arranged in the two circuit layers respectively. A third ground sheet is arranged between the two circuit layers. A differential pair includes a transmission line arranged between the first and third ground sheets and a transmission line arranged between the second and third ground sheets. The first to third ground sheets have same electric potential. Projections of the first and second ground sheets on the third ground sheet superpose a border of the third ground sheet. The third ground sheet is formed by extending the border along a signal transmission direction. A vertical distance between the first and second transmission lines is twice as each of a vertical distance from the first ground sheet to the first transmission line and a vertical distance from the second ground sheet to the second transmission line.