Invention Grant
- Patent Title: Double compression avoidance
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Application No.: US15807634Application Date: 2017-11-09
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Publication No.: US10804889B2Publication Date: 2020-10-13
- Inventor: Michael V. Koch , Andreas H. A. Arp , Matthias Ringe , Fatih Cilek
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Monchai Chuaychoo; Gilbert Harmon, Jr.
- Main IPC: H03K5/151
- IPC: H03K5/151 ; H03K3/038 ; G06F1/10 ; H03K5/135 ; H03K3/037 ; H03K5/00

Abstract:
The disclosure relates to a skew control circuit for controlling the skew between at least three clock signals, the clock signals being forwarded to different clock domains associated with the respective clock signals. The skew control circuit comprises multiple programmable delay elements arranged within a signal flow before the respective clock domain, a skew detector arrangement operable for detecting skews between at least two pairs of the clock signals, and a control circuit operable for adjusting delays caused by the programmable delay elements. The control circuit is operable for carrying out a de-skewing operation. The de-skewing operation comprises determining an order of occurrence of edges of the signals, selecting one of the programmable delay elements based on the determined order, and adjusting the delay caused by the selected programmable delay element.
Public/Granted literature
- US20190020334A1 DOUBLE COMPRESSION AVOIDANCE Public/Granted day:2019-01-17
Information query
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