| CPC H04N 25/42 (2023.01) [H04N 25/745 (2023.01); H04N 25/75 (2023.01)] | 19 Claims |
|
1. An apparatus comprising:
a pixel unit including a plurality of pixels arranged in a plurality of rows, the plurality of pixels each including a quench element and a photodiode connected to the quench element, wherein a signal defining a start and an end of an exposure period is input to a control node of the quench element;
a scan unit configured to scan the pixel unit by performing reading processing of reading signals of the pixels, start processing of starting the exposure period, and end processing of ending the exposure period on the plurality of rows sequentially row by row in units of one row or two or more rows; and
a control unit configured to output a synchronization signal to the scan unit, the synchronization signal controlling a timing of the reading processing,
wherein at least one of a timing of the start processing and a timing of the end processing is controlled by another control signal different from the synchronization signal,
wherein the scan unit includes a plurality of row driving units arranged corresponding to the plurality of rows of the pixels, the plurality of row driving units each controlling the pixels of the corresponding row, and
wherein each of the plurality of row driving units includes:
a count unit configured to generate a count value by counting a pulse signal; and
an end control unit configured to generate the control signal based on the count value, the control signal controlling the end processing.
|