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:
Oct. 02, 2007
Filed:
Aug. 14, 2003
Kenichi Mori, Ibaraki, JP;
Yoshio Urabe, Ikoma, JP;
Koichiro Tanaka, Takaraduka, JP;
Hideki Nakahara, Takaraduka, JP;
Hitoshi Takai, Toyono-gun, JP;
Kenichi Mori, Ibaraki, JP;
Yoshio Urabe, Ikoma, JP;
Koichiro Tanaka, Takaraduka, JP;
Hideki Nakahara, Takaraduka, JP;
Hitoshi Takai, Toyono-gun, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A data receiving device is provided enabling a reduction in the time required for extracting a partial band signal, and capable of being easily made in a simple structure as an LSI device without requiring a plurality of analog circuits having the same characteristics. The data receiving device includes: a first sampler for sampling an in-phase signal I(t) at every predetermined sampling period and outputting the sampled in-phase signal; a second sampler for sampling a quadrature signal at every predetermined sampling period and outputting the sampled quadrature signal; a partial band extracting section structured by a complex filter for extracting partial band signals IB, QBfrom frequency components included in the sampled in-phase signal and the sampled quadrature signal; and first and second delay detection operating sections for performing a delay detecting process based on the partial band signals and outputting detection signals.