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. 18, 2014
Filed:
Oct. 26, 2012
Mstar Semiconductor, Inc., Hsinchu Hsien, TW;
Dennis Mahoney, Greensboro, NC (US);
Bernard Ginetti, Antibes, FR;
Zhongxuan Zhang, Fremont, CA (US);
Khurram Muhammad, Garland, TX (US);
Chih-Ming Hung, Mckinney, TX (US);
Ming-Yu Hsieh, Hsinchu Hsien, TW;
MStar Semiconductor, Inc., Hsinchu Hsien, TW;
Abstract
A modulator generates a baseband digital signal from an information-bearing digital signal. The baseband signal has time-varying phase and amplitude defined by a sequence of complex data words, each having an in-phase (I) component and a quadrature (Q) component. A noise-shaping modulator generates a noise-shaped digital signal from the baseband digital signal such that quantization noise in the noise-shaping modulator is attenuated by a spectral null of its noise transfer function. The spectral null is selected by a noise-shaping parameter corresponding to a selected one of a plurality of output frequencies. A signal converter generates an analog signal conveying the information of the information-bearing digital signal on an analog carrier signal having the selected output frequency.