Method and apparatus for allocating use of an access device...

Details Method and apparatus for allocating use of an access device... Method and apparatus for allocating use of an access device...

2005-11-15

2005-11-15

Courtenay, III, St. John (Department: 2126)

Electrical computers and digital processing systems: virtual mac

Task management or control

Process scheduling

C719S319000

Reexamination Certificate

active

06966062

ABSTRACT:
A method, apparatus and article of manufacture for allocating use of an access device between a host operating system and a guest operating system. In one embodiment, a source of the received request to use the access device is determined as either the host operating system or the guest operating system. A determination of whether the host or guest operating system has a key for the access device is performed. The key enables either the host operating system or the guest operating system to use the access device. A determination of whether the received request is an altering request to change a state of the access device or a passive request to read the access device is also performed. The processing of the request from the host and guest operating systems is similar except when the request is an altering request and neither the host operating system nor the guest operating system has the key. In this case, the request from the host operating system is passed and the request from the guest operating system is rejected.

REFERENCES:
patent: 4354227 (1982-10-01), Hays et al.
patent: 5138713 (1992-08-01), Loten
patent: 5471609 (1995-11-01), Yudenfriend et al.
patent: 6131113 (2000-10-01), Ellsworth et al.
patent: 6253225 (2001-06-01), Nakahara et al.
patent: 6401110 (2002-06-01), Freitas et al.
patent: 6453392 (2002-09-01), Flynn, Jr.
patent: 6711605 (2004-03-01), Sekiguchi et al.

Affiliated with

Also associated with

Rating

Method and apparatus for allocating use of an access device... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for allocating use of an access device..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for allocating use of an access device... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3500893