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.:

US 7778350 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 17, 2010

Filed:

Aug. 31, 2006
Applicants:

Sadaki Futagi, Sendai, JP;

Takashi Kitahara, Sendai, JP;

Inventors:

Sadaki Futagi, Sendai, JP;

Takashi Kitahara, Sendai, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/00 (2006.01); H04L 23/00 (2006.01); H04J 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a multi-carrier communication device capable of reducing the deterioration of a reception quality while suppressing the peak power of a multi-carrier signal. In this device, a clipping strain measurement unit () calculates the individual average powers (or the clipping strain powers) of peak suppression signals contained in a center area and in end areas. Moreover, the clipping strain measurement unit () uses the calculated clipping strain, to calculates the ratios of the signal powers to the clipping strain powers (or the ratios of the signals to the clipping strains) individually for the center area and the end areas, and outputs the calculated ratios of the signals to the clipping strains to a puncture-modulation mode selection unit (). On the basis of the ratios of the signals to the clipping strains for the individual areas, the puncture-modulation mode selection unit () selects the encoding percentage, the modulation mode or the power of the transmission data to be superposed on the individual areas.


Find Patent Forward Citations

Futagi, Sadaki. (2010). Multi-carrier communication device, and multi-carrier communication method (U.S. Patent No. 7778350). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7778350

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