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

Claim 6:
7. The differential signal skew calibration circuit of claim 6, wherein the first storage sub-circuit comprises:
a first voltage-controlled switch, a first end of the first voltage-controlled switch being connected with the third end of the second logical circuit, a second end of the first voltage-controlled switch being connected with the second end of the first frequency division sub-circuit, wherein the first voltage-controlled switch is configured to receive the first storage control signal, and is turned on or off according to the first storage control signal;
a second voltage-controlled switch, a first end of the second voltage-controlled switch being connected with a third end of the first voltage-controlled switch, a second end of the second voltage-controlled switch being connected with the second end of the first frequency division sub-circuit, wherein the second voltage-controlled switch is configured to receive an inverted signal of the first storage control signal, and is turned on or off according to the inverted signal of the first storage control signal; and
a first capacitor, a first end of the first capacitor being connected with the third end of the first voltage-controlled switch and the first end of the second detection circuit respectively, a second end of the first capacitor being connected with a third end of the second voltage-controlled switch and a ground respectively, wherein the first capacitor is configured to store the first phase difference pulse signal or release the stored first phase difference pulse signal.