Invention Grant
US4695890A Line transfer reading device with feedback regulating the drive charge
失效
线路传输读取装置,具有反馈调节驱动电荷
- Patent Title: Line transfer reading device with feedback regulating the drive charge
- Patent Title (中): 线路传输读取装置,具有反馈调节驱动电荷
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Application No.: US849197Application Date: 1986-04-07
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Publication No.: US4695890APublication Date: 1987-09-22
- Inventor: Gilles Boucharlat , Louis Brissot
- Applicant: Gilles Boucharlat , Louis Brissot
- Applicant Address: FRX Paris
- Assignee: Thomson-CSF
- Current Assignee: Thomson-CSF
- Current Assignee Address: FRX Paris
- Priority: FRX8506009 19850419
- Main IPC: H04N5/3725
- IPC: H04N5/3725 ; H04N3/14
Abstract:
The present invention provides a device for reading a matrix of photosensitive detectors by line transfer with feedback, wherein means provide feedback of a part of the video signal from a line of the matrix which is read to a stage for series injection of a drive charge at the input of a register providing reading successively of each line of detectors of the matrix. Thus the value of the drive charge is modulated which is intended to be added to the video signal of the line of the matrix which will then be read, such modulation being directly proportional to the video signal of the line which is read and dependent on the transfer inefficiency of the device.
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