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:
Nov. 09, 2004
Filed:
May. 15, 2001
Hiroshi Mano, Hohya, JP;
AOR, Ltd., Tokyo, JP;
Abstract
A wideband receiver ( ) comprises a frequency converter ( ) for converting the frequency of a signal inputted through an antenna ( ) by using a local oscillation signal from a local oscillator ( ); a wideband filter ( ) for receiving the output of the frequency converter ( ) and passing a signal component corresponding to the scanning band including the bands of channels; an A/D converter ( ) for converting the output of the wideband filter ( ) into a digital signal; an FFT operational circuit ( ) for receiving the digital signal and subjecting it to high-speed Fourier transformation; and a control circuit ( ) for detecting the channel in communication in a predetermined scanning band on the basis of the results of operation of the FFT operational circuit. The control circuit ( ) repeats the change of the scanning band by changing the frequency of the local oscillation signal, to detect the channel in communication with an assigned frequency range, i.e., a search frequency range.