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:
Mar. 07, 1995
Filed:
Jun. 29, 1993
Richard L Galbraith, Rochester, MN (US);
Christian J Goetschel, Rochester, MN (US);
Robert A Kertis, Rochester, MN (US);
Rick A Philpott, Rochester, MN (US);
Raymond A Richetta, Rochester, MN (US);
Timothy J Schmerbeck, Kasson, MN (US);
Donald J Schulte, Rochester, MN (US);
David P Swart, Pine Island, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus are provided for adaptive chip trim adjustment for an integrated circuit. A plurality of switching devices have an unswitched state and a switched state. The unswitched state corresponds to one binary value, and the switched state corresponds to another binary value. A first trim word is provided by sensing the switching devices. The switching devices are temporarily bypassed, and an override bit pattern is supplied to simulate any desired pattern of the switching device states. The override bit pattern is used for simulating a switched or unswitched state for each of the plurality of switching devices.