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:
Jun. 29, 2010
Filed:
May. 11, 2006
Brent Keeth, Boise, ID (US);
Joo S. Choi, Boise, ID (US);
George E. Pax, Boise, ID (US);
Ronnie M. Harrison, Boise, ID (US);
David Ovard, Meridian, ID (US);
Dragos Dimitriu, Boise, ID (US);
Troy A. Manning, Meridian, ID (US);
Roy E. Greeff, Boise, ID (US);
Greg King, Lakeville, MN (US);
Brian Johnson, Boise, ID (US);
Brent Keeth, Boise, ID (US);
Joo S. Choi, Boise, ID (US);
George E. Pax, Boise, ID (US);
Ronnie M. Harrison, Boise, ID (US);
David Ovard, Meridian, ID (US);
Dragos Dimitriu, Boise, ID (US);
Troy A. Manning, Meridian, ID (US);
Roy E. Greeff, Boise, ID (US);
Greg King, Lakeville, MN (US);
Brian Johnson, Boise, ID (US);
Micron Technology, Inc., Boise, ID (US);
Abstract
A method and system for generating a reference voltage for memory device signal receivers operates in either a calibration mode or a normal operating mode. In the calibration mode, the magnitude of the reference voltage is incrementally varied, and a digital signal pattern is coupled to the receiver at each reference voltage. An output of the receiver is analyzed to determine if the receiver can accurately pass the signal pattern at each reference voltage level. A range of reference voltages that allow the receiver to accurately pass the signal pattern is recorded, and a final reference voltage is calculated at the approximate midpoint of the range. This final reference voltage is applied to the receiver during normal operation.