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

Claim 9:
10. The differential signal skew calibration circuit of claim 9, wherein the second storage sub-circuit comprises:
a third voltage-controlled switch, a first end of the third voltage-controlled switch being connected with the third end of the third logical circuit, a second end of the third voltage-controlled switch being connected with the second end of the second frequency division sub-circuit, wherein the third voltage-controlled switch is configured to receive the second storage control signal, and is turned on or off according to the second storage control signal;
a fourth voltage-controlled switch, a first end of the fourth voltage-controlled switch being connected with a third end of the third voltage-controlled switch, a second end of the fourth voltage-controlled switch being connected with the second end of the second frequency division sub-circuit, wherein the fourth voltage-controlled switch is configured to receive an inverted signal of the second storage control signal, and is turned on or off according to the inverted signal of the second storage control signal; and
a second capacitor, a first end of the second capacitor being connected with the third end of the third voltage-controlled switch and the first end of the second detection circuit respectively, a second end of the second capacitor being connected with a third end of the fourth voltage-controlled switch and a ground respectively, wherein the second capacitor is configured to store the second phase difference pulse signal or release the stored second phase difference pulse signal.