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:
Feb. 04, 2014
Filed:
Feb. 12, 2010
Takashi Yoshimoto, Osaka, JP;
Minoru Kubota, Osaka, JP;
Naoki Okamoto, Osaka, JP;
Hiroshi Suzuki, Tokyo, JP;
Kazuhiko Fukawa, Tokyo, JP;
Satoshi Suyama, Fujisawa, JP;
Takashi Yoshimoto, Osaka, JP;
Minoru Kubota, Osaka, JP;
Naoki Okamoto, Osaka, JP;
Hiroshi Suzuki, Tokyo, JP;
Kazuhiko Fukawa, Tokyo, JP;
Satoshi Suyama, Fujisawa, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Other;
Abstract
A receiver apparatus receiving a quadrature-modulated, modulated wave, includes: a real-zero signal generator for adding a sinusoidal wave to the modulated wave to generate a real-zero signal; an in-phase and quadrature component detector for extracting an in-phase component signal and a quadrature component signal from the real-zero signal; a real-zero sequence generator for generating a real-zero sequence as a sequence of time points at which the in-phase component and quadrature component signals become zero; and a signal reconstruction unit for reproducing the in-phase component and quadrature component from the real-zero sequence. It is possible to provide a receiving apparatus that enables decoding of a received signal with high precision even when sufficient linearity cannot be secured in the analog circuit of the receiver apparatus.