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. 30, 2025
Filed:
Aug. 11, 2023
Changxin Memory Technologies, Inc., Hefei, CN;
Kai Tian, Hefei, CN;
CHANGXIN MEMORY TECHNOLOGIES, INC., Hefei, CN;
Abstract
A circuit for calibration control includes an off-chip calibration circuit and a mode switching circuit, and the off-chip calibration circuit includes a preprocessing circuit and a mapping circuit. The preprocessing circuit is configured to receive a current set of environmental parameters, decode the current set of environmental parameters and output parameter decoding signals. The mapping circuit is configured to receive the parameter decoding signals and output a first calibration code according to the parameter decoding signals. The mode switching circuit is configured to receive a calibration mode signal and the first calibration code, and determine the first calibration code as a ZQ calibration code in a case where the calibration mode signal indicates an off-chip calibration mode.