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:
May. 06, 2008
Filed:
Jan. 12, 2005
Hisashi Suganuma, Saitama-ken, JP;
Hisashi Suganuma, Saitama-ken, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
An adjacent interference removal device capable of providing an improved reception quality. An IF signal Sin having passed through an IF filter having a pass frequency band width of 200 kHz is supplied to a first narrow band filter having a pass frequency band width extending from a center frequency (carrier frequency) of the IF filter to +50 kHz, as well as to a second narrow band filter having a pass frequency band width extending from a center frequency (carrier frequency) of the IF filter to −50 kHz. When an interference signal is contained in a first signal Soutputted from the first narrow band filter but not in a second signal Soutputted from the second narrow band filter, and when an interference signal is contained in a detection signal Sdgenerated by detecting the second signal Sin a detector and contained in the second signal Sitself but not contained in the first signal Sthe detection signal Sdgenerated by detecting the first signal Sin another detector is outputted by performing a switchover in a signal selecting unit.