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:
Jul. 20, 2010
Filed:
Oct. 27, 2005
Haruya Ishizaki, Tokyo, JP;
Masayuki Mizuno, Tokyo, JP;
Haruya Ishizaki, Tokyo, JP;
Masayuki Mizuno, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In a wireless receiver that receives an electric signal that has undergone digital modulation, a sample-hold circuit converts a wireless modulated signal, which is a continuous time signal, to a discrete time signal, and the frequency band is converted and selected by means of a band-pass filter. A demodulation circuit carries out demodulation based on the instantaneous value of the voltage amplitude of the modulated signal. A shut-down circuit further effects adaptive control of the circuit shut-down time to minimize the circuit activation time while ensuring that the demodulation error rate of the demodulated baseband signal satisfies a value stipulated by the communication standard.