bit in the bit-rate stream control pulse modulation method and image sensor circuit for providing a signal (2 ) as the image sensor circuit (2) has a two-dimensional array of pixel signal pulse frequency modulator (22) , said arrays each photodiode for converting the incident light into a variable voltage signal 32 and the variable voltage signal from the frequency for generating a pulse frequency modulated signal - to-digital converter having a (FDC); The circuit 2 is also pulse modulated signal to a bit stream having a sampling unit 24 for sampling the pulse frequency modulated signal to generate a bit rate in the control , the arithmetic unit 26 is pulse -modulated bit stream is coupled to the output of the sampling unit 24 to perform processing on the signal probability .
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