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:
Nov. 17, 1998
Filed:
Jan. 21, 1997
Farzad Khosrowpour, Longmont, CO (US);
Erik Schuchmann, Austin, TX (US);
Dell USA, L.P., Round Rock, TX (US);
Abstract
A power supply line of a communications interface provides communication between two devices when one device is unable to utilize the communications interface in a standard manner. The power supply line is specified to operate within a first voltage range and normally operates at a first voltage within a second voltage range, the second voltage range being within the first voltage range. A voltage circuit changes the power supply line to a second voltage outside of the second voltage range but within the first voltage range. A voltage detecting circuit coupled to the power supply line asserts a signal indicating when the second voltage is present on the power supply line, thereby providing communication between the first device and the other device.