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:
Nov. 23, 1993

Filed:

Jul. 29, 1992
Applicant:
Inventor:

Lauren A Christopher, Indianapolis, IN (US);

Assignee:

Thomson Consumer Electronics, Inc., Indianapolis, IN (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358188 ; 358141 ; 358142 ; 375 39 ;
Abstract

Apparatus for processing harmonically related plural quadrature amplitude modulated carriers includes sampling apparatus for converting the plural modulated carriers to sampled data format. The sampling apparatus is arranged to sample the signals at a frequency equal to four times the symbol rate of the highest frequency carrier such that alternate samples correspond to in-phase and quadrature-phase components of the signal. The sampled data signals are resampled to separate respective in-phase and quadrature-phase components of the respective signals. The in-phase samples of the respective signals are time division multiplexed and coupled to a Nyquist or symbol shaping filter arranged to operate in a time division multiplexed manner.


Find Patent Forward Citations

Christopher, Lauren. (1993). Apparatus for time division multiplexed processing of frequency division (U.S. Patent No. 5264937). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5264937

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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