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:
Jun. 29, 2004
Filed:
Dec. 13, 1999
Shinichiro Fukushima, Yokohama, JP;
Takahiko Nozoe, Yokohama, JP;
Tsukasa Hasegawa, Hiratsuka, JP;
Hidefumi Gotou, Yokosuka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An IRD supplies broadcasting data on a bus a desired time period. When the IRD performs a reservation of the bus usage, the IRD request current bus usage information and information of the bus reservation from all devices connected by the bus, such as a DVD , a D-VTR , a D-VTR , a CAM , a TV , and a isochronous manager of the D-VTR . The isochronous manager and each device answer by sending the bus usage information to the IRD and reservation information. The IRD judges a possibility of the reservation from the answer information. If the reservation is possible, it performs the reservation operation. IF the reservation is impossible, then the reason is displayed on a TV . Therefore, it is possible to prevent a usage of a device that excesses the bus transferring capacity.