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. 23, 2002
Filed:
Mar. 16, 1999
Tetsuro Uchida, Kanagawa, JP;
Mitsumi Electric Co., Ltd., Tokyo, JP;
Abstract
A transmission circuit comprises a fixed-frequency oscillator for oscillating a frequency for the transmission, a voltage controlled oscillator for outputting a signal containing a modulation signal component, a frequency mixer for mixing an output signal of the fixed-frequency oscillator and an output signal of the voltage controlled oscillator, a high-frequency amplifier for amplifying output of the frequency mixer and supplying the amplified signal to a transmission antenna, and a power control circuit for first turning on power of the voltage controlled oscillator and the high-frequency amplifier at the beginning of the transmission and after expiration of a predetermined time, turning on power of the fixed-frequency oscillator.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile