Focal plane reading circuit in optional line-by-line or interlacing reading mode

Abstract

The invention provides a focal plane reading circuit in a line-by-line or interlacing optional reading mode. The problems that an existing focal plane reading circuit is in a line-by-line reading mode and cannot meet the requirements of PAL, NTSC and other television systems are solved. The focal plane reading circuit in the line-by-line or interlacing optional reading mode comprises a line reading enable signal generating module, a line address generating module and a line decoding module. The line reading enable signal generating module can collect other signals in the circuit, processes the signals and outputs the line reading enable signals. The line address generating module is in a line-by-line or interlacing reading mode under the control of line-by-line or interlacing optional control signals. The line decoding module can be in a line-by-line or interlacing reading mode under the control of odd or even line enable control signals. In addition, the field-synchronizing signals and line-by-line or interlacing optional control signals are arranged. The focal plane reading circuit has the advantages that line-by-line reading or interlacing optional reading can be switched for the focal plane reading circuit conveniently, and different requirements of the television systems are met.

Description

[0001] field of invention [0002] The invention relates to a complementary metal oxide semiconductor CMOS focal plane readout circuit design technology, in particular to a focal plane readout circuit with optional progressive / interlaced readout. Background technique [0003] Focal plane imaging is widely used in military imaging, industrial control, medical diagnosis, process detection, astronomical observation and other fields, including ultraviolet and infrared imaging. The focal plane imaging system needs to include a focal plane detector and a focal plane readout circuit. At present, the focal plane readout circuit mainly has two types: charge-coupled device CCD and complementary metal oxide semiconductor CMOS, and CMOS focal plane readout circuit has gradually become the focal plane readout circuit due to its advantages of low power consumption and high integration. main types of . As the interface between the detector and the back-end signal processing circuit in th...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the progressive readout mode of the prior art focal plane readout circuit cannot meet the requirements of PAL, NTSC and other television standards, the present invention proposes an optional progressive / interlaced readout focal plane readout method. planar readout circuit

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