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:
Apr. 23, 2002
Filed:
Jun. 01, 1995
Mark J. Foster, Lincoln Township, Berrien County, MI (US);
Saifuddin T. Fakhruddin, St. Joseph, MI (US);
James L. Walker, Benton Harbor, MI (US);
Matthew B. Mendelow, St. Joseph, MI (US);
Jiming Sun, St. Joseph, MI (US);
Rodman S. Brahman, St. Joseph Township, Berrien County, MI (US);
Michael P. Krau, Hagar Township, Berrien County, MI (US);
Brian D. Willoughby, Lincoln Township, Berrien County, MI (US);
Michael D. Maddix, Lincoln Township, Berrien County, MI (US);
Steven L. Belt, Stevensville, MI (US);
Scott A. Hovey, St. Joseph, MI (US);
Mark A. Ruthenbeck, Lincoln Township, Berrien County, MI (US);
NEC Corporation, Tokyo, JP;
Abstract
A laptop computer system includes a protected mode microprocessor capable of operating in restricted and unrestricted modes, and an arrangement which in response to a predetermined condition saves information from the processor and then forcibly switches the processor to its unrestricted mode of operation. When running a multi-tasking operating system where an application program is being executed in a restricted mode, a suspend/resume operation can be carried out in which the system is substantially powered down and then powered back up, and will resume the interrupted application with the restricted mode back in effect. Further, set-up changes such as adjustment of the processor speed can be made without exiting the application program running in the restricted mode.