Patent ID: 11860226
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A time offset method for a test signal, wherein the time offset method comprises:
acquiring time parameters of each of devices under test (DUTs) when a signal source sends a test signal to the DUTs at a plurality of test locations on a test platform, wherein impedance on a transmission path between the signal source and each of the test locations differs from one another, and the time parameters are used for indicating whether the impedance on each transmission path has an impact on receiving the test signal by the DUT;
determining, based on target time parameters and the time parameters of each of the DUTs, offset parameters corresponding to the plurality of test locations where the DUTs are located; and
sending the signal source the plurality of offset parameters corresponding to the plurality of test locations such that the signal source performs, according to the plurality of offset parameters, time offset for test clock (TCK) signals sent to the plurality of test locations.