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:
Apr. 13, 2010
Filed:
Aug. 22, 2005
Kui Y. Lim, Singapore, SG;
Siew K. Ong, Singapore, SG;
Kui Y. Lim, Singapore, SG;
Siew K. Ong, Singapore, SG;
NXP B.V., Eindhoven, NL;
Abstract
RF switches are known from the art for selecting an RF signal from a multiple of inputs. For instance a TV-tuner and TV-Front-end can have two or more antenna inputs but are implemented with a relative bad cost performance. The present invention relates to an RF selection switch circuit (). The switch comprises a first switch (), a second switch () with both an RF input port and a common RF output port a control signal circuitry (). In a preferred embodiment the switches comprise pin-diodes. The RF output port comprises two transistors (TT), one of which at a time can put the non-selected switch to a low-impedance level in order to minimize signal leakage the common output port.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile