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.

Date of Patent:
Oct. 07, 2003

Filed:

Dec. 27, 1999
Applicant:
Inventors:

Ming-Chou Wu, Taipei, TW;

Hsu-Hsiang Tseng, Taoyuan, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03C 3/00 ; H03D 3/24 ;
U.S. Cl.
CPC ...
H03C 3/00 ; H03D 3/24 ;
Abstract

The present invention is an apparatus and method for performing a Gaussian Minimum Shift Keying baseband modulation based on a reference phase to be simplified. The invention mainly comprises: a memory unit storing a plurality of parameters and their corresponding tabular data of a low pass Gaussian filter, the parameters and their corresponding tabular data being simplified in advance; the low pass filter being used for reducing the bandwidth of the apparatus and increasing the utilization of the bandwidth; and a processing unit based on the input digital data and the tabular data in the memory unit to generate the digital in-phase signal I and the digital quadrature-phase signal Q .


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