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AssigneeDV2JS Innovation LLP.
InventorsMukul Sarkar, Neha Priyadarshini
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A method and a system are disclosed for pixel-embedded signal amplification of a CMOS image sensor using multi-step voltage-gain enhancement. It involves activating a row of the CMOS image sensor by resetting switches SRST 202, SH1 201 and SH2 209 to charge nodes PD1, PD2, SD1, and SD2 to a pre-set voltage potential and VRST 203. The CMOS sensor switches OFF SRST 202, SH1 201 and SH2 209 for integration of the charges at PD1 for producing a corresponding photo-generated signal. This signal is sampled by transferring to a gate of source follower SF1, to produce an amplified signal. It further involves double-sampling the amplified signal for removing any pixel-offset variation to produce a resultant signal. The said method is repeated for second row of CMOS image sensor for implementing additional gain on the resultant voltage signal, and the same is finally converted to digital bits to obtain an output signal of with enhanced gain.
A method for pixel-embedded signal amplification of a CMOS image sensor using multi-step voltage gain enhancement, the method comprising:
A CMOS image sensor system using multi-step voltage gain enhancement for pixel-embedded signal amplification, comprises:
A CMOS image sensor system for pixel-embedded signal amplification of a CMOS image sensor using multi-step voltage gain enhancement, comprises:
Dependencies are inferred from the claim text.