| 摘要 |
PROBLEM TO BE SOLVED: To provide a CCD signal processing channel with an input and an output offset correction function. SOLUTION: Integrators are positioned to provide correction at the input of a correlated double sampling circuit and at the output of a programmable gain amplifier. A gain control function is provided for the programmable gain amplifier. The second integrator may be all digital or may combine analog and digital signals. The channel may also be constructed using a digital programmable gain amplifier. The digital programmable gain amplifier can be combined with an analog programmable gain amplifier in the signal processing channel. COPYRIGHT: (C)2011,JPO&INPIT
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