Invention Application
- Patent Title: Calibration device for a video input stage
- Patent Title (中): 视频输入级的校准装置
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Application No.: US10356350Application Date: 2003-01-30
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Publication No.: US20030174249A1Publication Date: 2003-09-18
- Inventor: Lionel Grillo
- Applicant: STMicroelectronics S.A.
- Applicant Address: FR Montrouge
- Assignee: STMicroelectronics S.A.
- Current Assignee: STMicroelectronics S.A.
- Current Assignee Address: FR Montrouge
- Priority: FR0201172 20020131
- Main IPC: H03M001/12
- IPC: H03M001/12

Abstract:
A calibration device for a video circuit input stage comprises an analog-to-digital converter and an input capacitor constantly discharged by a power source and recharged by a charging circuit by means of a first and a second charging current. The charging circuit is controlled by a central processing unit receiving an estimate of the variation between the converter's output code and a clamp value.
Public/Granted literature
- US07092039B2 Calibration device for a video input stage Public/Granted day:2006-08-15
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