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:
Sep. 08, 1998
Filed:
Aug. 30, 1995
Scott Jeffrey Hadderman, Pleasant Valley, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus for detecting a supply voltage loss from a PCMCIA power source across a PCMCIA interface. The voltage loss may correspond for example, to the removal of a PCMCIA card from a PCMCIA host computer system. The invention provides for detection and reporting of said supply voltage loss to another apparatus capable of operating at lower voltage levels than that supplied by the PCMCIA power source. The rate of supply voltage loss is controlled, and an indication of the loss is provided to the other apparatus so as to allow sufficient time for the apparatus to take appropriate actions in response to the loss of supply voltage.