Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus interface architecture
Reexamination Certificate
2006-09-19
2006-09-19
Ray, Gopal C. (Department: 2111)
Electrical computers and digital data processing systems: input/
Intrasystem connection
Bus interface architecture
C710S305000, C370S421000, C370S434000
Reexamination Certificate
active
07111106
ABSTRACT:
A USB system is capable of connecting, based on the function of constructing and connecting a virtual port by a virtual port constructing functional unit, a number of devices exceeding a prescribed number of tiers having a hub device in a connection topology of a host device—hub devices—a device of the USB system. When the host device addresses a device on its downstream side, the hub device acts as if it is a specified device by a proxy response functional unit including the hub device, and instantaneously performs a proxy response depending upon the situation that, for example, the device on its downstream side is not ready. This causes no problem associated with the turn-around time of the USB bus even if the prescribed number of tiers is exceeded.
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“A multiprocessor architecture for high-rate communication processing” by E.E Johnson (abstract only) Publication date: Nov. 4-7, 1991.
Oki Electric Industry Co. Ltd.
Ray Gopal C.
VolentineFrancos&Whitt,PLLC
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