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:
Mar. 13, 2012

Filed:

Apr. 02, 2007
Applicants:

Yuki Fujiwara, Osaka, JP;

Go Kuroda, Osaka, JP;

Koji Ikeda, Fukuoka, JP;

Akio Kurobe, Osaka, JP;

Inventors:

Yuki Fujiwara, Osaka, JP;

Go Kuroda, Osaka, JP;

Koji Ikeda, Fukuoka, JP;

Akio Kurobe, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 7/212 (2006.01);
U.S. Cl.
CPC ...
Abstract

A communication apparatus, which is capable of allowing a plurality of communication systems respectively having different types of communication modes to coexist with one another on a single communication medium, satisfying Qos requirements with the use of only a simple configuration thereof, and minutely setting an exclusive use rate of a medium, is provided. A coexistence signal cycle Tis divided into M time periods by a communication slot unitwhich is constituted of N communication slots. At least one communication slot in the communication slot unitis defined as a 'D-Slot' which can obtain a communication right M/X times during the coexistence signal cycle T, and remaining communication slots other than the D-Slot in the communication slot unitis defined as 'S-Slots' which can obtain the communication right M times during the coexistence signal cycle T. A communication band to be used exclusively in one communication system is allocated in a unit of 1/X of the communication slot D-Slot, and also in a unit of one of the communication slots S-Slots.


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