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. 02, 2007
Filed:
Mar. 10, 2000
Yasunari Ikeda, Kanagawa, JP;
Tamotsu Ikeda, Tokyo, JP;
Takahiro Okada, Saitama, JP;
Sony Corporation, Tokyo, JP;
Abstract
Influence from an adjacent signal is prevented even if a guard band is not provided. A phase comparison unitcompares a reference window signal input to a PLL circuitand a window signal supplied from a frequency division circuitand outputs the comparison result to an LPF. The LPFextracts a low frequency component from the input signal and outputs the same to a voltage controlled oscillator. The signal output from the voltage controlled oscillatoris supplied as a clock to units of an OFDM modulation circuitand, at the same time, supplied to the frequency division circuit. The frequency division circuitdivides the frequency of the supplied signal to thereby generate a new window signal and supplies the same to an IFFT unit. Further, the generated window signal is supplied to a PLL circuit. The PLL circuitgenerates a clock for controlling a frequency modulation circuitbased on the supplied window signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile