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:
Nov. 17, 2009
Filed:
Jan. 27, 2006
Masahiko Mizutani, Kokubunji, JP;
Yoshihiro Ashi, Yokohama, JP;
Masayuki Takase, Kokubunji, JP;
Kenichi Sakamoto, Kokubunji, JP;
Atsushi Iwamura, Yokohama, JP;
Tohru Kazawa, Kokubunji, JP;
Norihiro Sakamoto, Yokohama, JP;
Masahiko Mizutani, Kokubunji, JP;
Yoshihiro Ashi, Yokohama, JP;
Masayuki Takase, Kokubunji, JP;
Kenichi Sakamoto, Kokubunji, JP;
Atsushi Iwamura, Yokohama, JP;
Tohru Kazawa, Kokubunji, JP;
Norihiro Sakamoto, Yokohama, JP;
Hitachi Communication Technologies, Ltd., Tokyo, JP;
Abstract
A transmission apparatus for use in fixed bandwidth communications and variable bandwidth communications. The transmission apparatus has a memory unit, which stores information contained in a frame and indicating the amount of data to be transmitted from a terminal device, a computing unit, which calculates a bandwidth amount to be assigned to the terminal device based on the data amount, and a transmission unit, which sends the calculated assigned bandwidth amount to the terminal device. The transmission apparatus is characterized in that the computing unit calculates bandwidth amounts to be assigned to different types of flow of which different transmission qualities are requested according to a priority level that is set to each flow type. The transmission apparatus is also characterized in that bandwidth is controlled by designating, instead of a necessary bandwidth amount, transmission starting timing and transmission ending timing, particularly for fixed bandwidth communication data.