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. 01, 2016
Filed:
Apr. 04, 2013
Qualcomm Incorporated, San Diego, CA (US);
Ahmed Abdel Monem Youssef, San Diego, CA (US);
Li-Chung Chang, Irvine, CA (US);
Ehab Ahmed Sobhy Abdel Ghany, San Diego, CA (US);
Rui Xu, San Diego, CA (US);
Wingching Vincent Leung, San Diego, CA (US);
Allen He, San Diego, CA (US);
Qualcomm Incorporated, San Diego, CA (US);
Abstract
Techniques for routing and shielding signal lines to improve isolation between the signal lines are disclosed. In an exemplary design, an apparatus includes first, second, and third signal lines and a switch. The first, second, and third signal lines are configurable to carry first, second, and third signals, respectively. The switch is coupled between the second signal line and AC ground and is closed when the second signal line is not carrying the second signal. The second signal line isolates the first and third signal lines when the switch is closed. Adjacent signal lines are not active at the same time. A signal line may include positive and negative signal lines, which may have at least one cross over in order to cancel coupling between the positive and negative signal lines.