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. 06, 2009
Filed:
Sep. 15, 2003
Applicants:
Sung Uk Moon, Yokosuka, JP;
Takahiro Hayashi, Yokosuka, JP;
Toshiyuki Futakata, Yokosuka, JP;
Inventors:
Assignee:
NTT DoCoMo, Inc., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 27/00 (2006.01); H04L 27/36 (2006.01); H04L 27/20 (2006.01); H04L 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A modulation device comprises a modulation unit () that modulates data in a hierarchical manner using multiple types of modulation techniques, and a transmission unit () that transmits the hierarchically modulated data. A demodulation device comprises a receiving unit () that receives the hierarchical modulation data having been subjected to hierarchical modulation using multiple types of modulation techniques, and a demodulation unit () that demodulates the hierarchical modulation data using a demodulation technique corresponding to a specific hierarchy of the hierarchical modulation data.