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:
Jan. 19, 2010
Filed:
Aug. 30, 2006
Akishige Nakajima, Tokyo, JP;
Yasushi Shigeno, Tokyo, JP;
Takashi Ogawa, Tokyo, JP;
Shinya Osakabe, Tokyo, JP;
Tomoyuki Ishikawa, Hitachinaka, JP;
Akishige Nakajima, Tokyo, JP;
Yasushi Shigeno, Tokyo, JP;
Takashi Ogawa, Tokyo, JP;
Shinya Osakabe, Tokyo, JP;
Tomoyuki Ishikawa, Hitachinaka, JP;
Renesas Technology Corp., Tokyo, JP;
Abstract
In a SPDT switch, a resistor for leak path is connected between a terminal for antenna and a reference potential. The resistor for leak path allows charge capacitances accumulated in electrostatic capacitor elements provided as DC cut capacitors connected to transmission signal terminals and reception signal terminals to be discharged and allows rapid lowering of a potential at the terminal for antenna. In the SPDT switch, a switching characteristic is improved and a delay in the rising edge of a low-power slot which comes after a high-power slot is reduced.