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. 20, 2012
Filed:
Sep. 08, 2009
Applicant:
Yuuichi Aoki, Tokyo, JP;
Inventor:
Yuuichi Aoki, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A signal receiving device is provided which can prevent the imbalance occurring between in-phase and quadrature signals. A polarity of a local oscillator output signal to be outputted from a local oscillatoris switched by a polarity switching unitin a time division way. Each of signals outputted from the polarity switching unitis frequency divided by a frequency divider. The frequency-divided local oscillation signal is supplied to a mixer. Frequency conversion of a receiving signal is performed by the mixerwhich receives the signal and local oscillation signal to demodulate received data.