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. 20, 2009
Filed:
Jan. 11, 2006
Applicants:
Steve Xuefeng Jiang, Fremont, CA (US);
Simon Xu, San Jose, CA (US);
Inventors:
Steve Xuefeng Jiang, Fremont, CA (US);
Simon Xu, San Jose, CA (US);
Assignee:
Marvell World Trade Ltd., St. Michael, BB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A digital up-sampling converter (DUSC) employs a signal input provided by a digital signal process (DSP) at a first rate feeding a Square Root Raised Cosine (SRRC) filter which provides for table look up of filter coefficients for a multiple symbol span and provides a sampling output at a second rate which is a multiple M of the first rate. A digital to analog converter (DAC) receives the sampling output at the second rate for conversion to an analog signal and a low pass analog filter processes the analog signal for delivery to an RF transmitter.