Patent ID: 11894853
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 11:
12. The differential signal skew calibration circuit of claim 5, wherein the second detection circuit comprises:
a first voltage comparison circuit, a positive input end of the first voltage comparison circuit being connected with the third end of the first controllable storage circuit, a negative input end of the first voltage comparison circuit being connected with the third end of the second controllable storage circuit, wherein the first voltage comparison circuit is configured to compare the first phase difference pulse signal and the second phase difference pulse signal to generate a first comparison result; and
a second voltage comparison circuit, a positive input end of the second voltage comparison circuit being connected with the third end of the second controllable storage circuit, a negative input end of the second voltage comparison circuit being connected with the third end of the first controllable storage circuit, wherein the second voltage comparison circuit is configured to compare the second phase difference pulse signal and the first phase difference pulse signal to generate a second comparison result,
wherein the first comparison result and the second comparison result form the phase relationship.