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:
Jul. 05, 2005
Filed:
Aug. 28, 2002
Jason Tsai, Hsinchu, TW;
Ian Hsieh, Hsinchu, TW;
Jason Tsai, Hsinchu, TW;
Ian Hsieh, Hsinchu, TW;
Holteck Semiconductor Inc., Hsinchu, TW;
Abstract
A signal transceiver for transmitting a carrier signal to a transponder and receiving a modulated data signal returned by the transponder is provided. The signal transceiver includes a transistor with a base, a collector and an emitter, a controller being electrically connected to the base and providing a controlling signal for turning on the transistor, an oscillation source being electrically connected to the collector for providing the carrier signal, a capacitor being electrically connected to the base and the oscillation source for forming an oscillation circuit, and a resonator being electrically connected to the collector for transmitting the carrier signal to the transponder and receiving the modulated data signal returned by the transponder, and outputting a demodulated data signal through the emitter.