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公开(公告)号：US12063042B2
公开(公告)日：2024-08-13
申请号：US17945249
申请日：2022-09-15
Applicant: SK hynix Inc.
Inventor： Dae Ho Yang , Kwan Su Shon , Jong Hun Lim , Jun Seo Jang , Yo Han Jeong , Jaehyeong Hong , Byung Joo Hwang
CPC classification number: H03K5/1565 , H03K5/135
Abstract: A duty cycle correction device includes a duty cycle correction circuit and a duty cycle control circuit. The duty cycle correction circuit corrects a duty cycle of an input dock signal based on a duty cycle control signal and a duty cycle resolution control signal to generate an output dock signal. The duty cycle control circuit generates the duty cycle control signal by detecting a duty cycle of the output clock signal, generates a duty cycle correction completion signal when duty cycle correction is completed, and recorrects the duty cycle of the input clock signal by activating the duty cycle resolution control signal when the duty cycle correction completion signal is activated at an earlier timing than a reference time.
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公开(公告)号：US20230115436A1
公开(公告)日：2023-04-13
申请号：US17945249
申请日：2022-09-15
Applicant: SK hynix Inc.
Inventor： Dae Ho Yang , Kwan Su Shon , Jong Hun Lim , Jun Seo Jang , Yo Han Jeong , Jae Hyeong Hong , Byung Joo Hwang
Abstract: A duty cycle correction device includes a duty cycle correction circuit and a duty cycle control circuit. The duty cycle correction circuit corrects a duty cycle of an input clock signal based on a duty cycle control signal and a duty cycle resolution control signal to generate an output clock signal. The duty cycle control circuit generates the duty cycle control signal by detecting a duty cycle of the output clock signal, generates a duty cycle correction completion signal when duty cycle correction is completed, and recorrects the duty cycle of the input clock signal by activating the duty cycle resolution control signal when the duty cycle correction completion signal is activated at an earlier timing than a reference time.
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