Optical communications – Multiplex – Time division
Reexamination Certificate
2006-01-27
2009-11-17
Vanderpuye, Ken N (Department: 2613)
Optical communications
Multiplex
Time division
C398S066000, C398S067000, C398S098000, C398S076000, C370S395400, C370S468000
Reexamination Certificate
active
07620325
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.
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Ashi Yoshihiro
Iwamura Atsushi
Kazawa Tohru
Mizutani Masahiko
Sakamoto Ken'ichi
A. Marquez, Esq. Juan Carlos
Hitachi Communication Technologies Ltd.
Liu Li
Stites & Harbison PLLC
Vanderpuye Ken N
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