Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus interface architecture
Reexamination Certificate
2006-10-03
2006-10-03
Perveen, Rehana (Department: 2112)
Electrical computers and digital data processing systems: input/
Intrasystem connection
Bus interface architecture
C710S104000
Reexamination Certificate
active
07117288
ABSTRACT:
USB bus enumeration and configuration switching in a dual-processor architected device can result in loss of the inter-processor communication link. In order to solve this problem, an apparatus, architecture and method for simplifying the Universal Serial Bus (USB) service enumeration between two processors in a dual-processor architecture device are provided. A USB host (102) is connected to a first processor (201) of the dual-processor device (100) via a USB cable (104). The first processor (201) begins to enumerate services to the connected host (102). When the host sends a set_configuration request (405) to the device (100), the device determines whether the first processor (201) and the second processor (203) have the same configuration sets. The first processor (201) sends a set_configuration request to the second processor (203) to setup the requested services in the second processor. If the configuration sets are different then the first processor (201) sends one or more set_interface requests to the second processor (203) in which each request turns on a specific service in response.
REFERENCES:
patent: 6131125 (2000-10-01), Rostoker et al.
patent: 6389495 (2002-05-01), Larky et al.
patent: 6560665 (2003-05-01), Resler et al.
patent: 6654841 (2003-11-01), Lin
patent: 6742055 (2004-05-01), Matsunaga
patent: 6832273 (2004-12-01), Ray et al.
patent: 6862643 (2005-03-01), Wu et al.
patent: 2003/0027562 (2003-02-01), Nishimura
patent: 2004/0157638 (2004-08-01), Moran et al.
patent: 2004/0193744 (2004-09-01), Paley et al.
patent: 2005/0006483 (2005-01-01), Fruhauf
patent: 2005/0249143 (2005-11-01), Tee et al.
Universal Serial Bus Specification, Revision 2.0, Apr. 27, 2000, pp. 1-2 and 27-28.
Motorola Inc.
Perveen Rehana
Vu Trisha
Watanabe Hisashi D.
LandOfFree
USB dynamic service switch for dual processor architecture does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with USB dynamic service switch for dual processor architecture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and USB dynamic service switch for dual processor architecture will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3616784