Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus access regulation
Reexamination Certificate
2006-02-21
2006-02-21
Vo, Tim (Department: 2111)
Electrical computers and digital data processing systems: input/
Intrasystem connection
Bus access regulation
C710S110000, C710S072000, C710S240000, C370S395430
Reexamination Certificate
active
07003606
ABSTRACT:
An IRD103supplies broadcasting data on a bus in a desired time period. When the IRD103performs a reservation of the bus usage, the IRD103requests current bus usage information and information of the bus reservation from all devices connected by the bus, such as a DVD104, a D-VTR101, a D-VTR102, a CAM105, a TV100, and a isochronous manager107of the D-VTR101. The isochronous manager107and each device answer by sending the bus usage information and reservation information to the IRD103. The IRD103judges 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 TV100. Therefore, it is possible to prevent a usage of a device that excesses the bus transferring capacity.
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“The IEEE 1394 High Speed Serial Bus” by R. Bloks, Phillips Journal of Research, vol. 50, No. ½, pp. 209-216, Jul. 1996.
Fukushima Shinichiro
Gotou Hidefumi
Hasegawa Tsukasa
Nozoe Takahiko
Hitachi , Ltd.
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Phan Raymond N
Vo Tim
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