摘要:
There is provided a solid-state imaging device, which includes: a comparator for sequentially comparing a predetermined level of an analog pixel signal obtained from a plurality of pixels with a reference signal which is gradually changed and used for converting the predetermined level into digital data; a counter for performing a count processing in parallel with a comparison processing for the predetermined level in the comparator, and holding a count value at a time of completing the comparison processing to obtain digital data indicative of a value obtained by adding the plurality of pixel signals; and an addition spatial position adjusting unit for controlling a selection operation for selecting spatial positions of the plurality of pixels to be processed in the comparator and a ratio of a weight value during the addition to adjust spatial positions of pixels after addition.
摘要:
There is provided a solid-state imaging device, which includes: a comparator for sequentially comparing a predetermined level of an analog pixel signal obtained from a plurality of pixels with a reference signal which is gradually changed and used for converting the predetermined level into digital data; a counter for performing a count processing in parallel with a comparison processing for the predetermined level in the comparator, and holding a count value at a time of completing the comparison processing to obtain digital data indicative of a value obtained by adding the plurality of pixel signals; and an addition spatial position adjusting unit for controlling a selection operation for selecting spatial positions of the plurality of pixels to be processed in the comparator and a ratio of a weight value during the addition to adjust spatial positions of pixels after addition.
摘要:
Disclosed herein is an imaging element including a pixel array section, a first current source, a first ground line, a first switch, a first capacitive element, a second switch, and a current control circuit.
摘要:
A power supply device that switches one of a first power supply, a second power supply, and a third power supply, all of which supply power to an auxiliary device, to a transfer gate in a CMOS image sensor having a photodiode and outputs the corresponding power to the transfer gate is disclosed. The device includes: a first transistor driven by the second power supply and outputting power of the second power supply to the transfer gate; a second transistor driven by the second power supply and outputting power of the first power supply to the transfer gate; a third transistor driven by the third power supply and outputting power of the third power supply to the transfer gate; and a fourth transistor located before the second transistor, driven by the first power supply, and outputting power of the first power supply to a source of the second transistor.
摘要:
Disclosed herein is an imaging element including a pixel array section, a first current source, a first ground line, a first switch, a first capacitive element, a second switch, and a current control circuit.
摘要:
A solid-state imaging device includes a layout in which one sharing unit includes an array of photodiodes of 2 pixels by 4×n pixels (where, n is a positive integer), respectively, in horizontal and vertical directions.
摘要:
A solid-state imaging device with a layout in which one sharing unit includes an array of photodiodes of 2 pixels by 4×n pixels (where, n is a positive integer), respectively, in horizontal and vertical directions.
摘要:
A clock multiplying circuit includes: first and second inverters being ON/OFF-controlled by a positive- or negative-phase signal, respectively, of a first clock signal and including current source and current sync terminals; a capacitive element provided between output ends of the inverters; a current supplying unit increasing, if a frequency of the first clock signal increases, the control current and supplying the control current to the current source terminals of the inverters and outputting, from the current sync terminals of the inverters, a control current the same current amount as that of a control current to the current source terminal; a differential detecting unit receiving input of a potential difference signal between both electrodes of the capacitive element and generating a second clock signal having a phase difference of 90 degrees; and a multiplied-signal generating unit generating a double signal of the first clock signal on the basis of the clock signals.
摘要:
A solid-state image pickup device includes a pixel array including a plurality of pixels arranged in a matrix, and a pixel signal read-out circuit for reading out a pixel signal from the pixel array in units of a plurality of pixels. The pixel signal read-out circuit includes a plurality of comparators and a plurality of counters. The comparators are disposed to correspond to a column of the pixels, and compare a read-out signal potential and a reference voltage to generate a determination signal and output the determination signal. The counters are controlled by outputs of the comparators. Each of the counters is configured to count a comparison time of a corresponding comparator of the comparators. The counters have a different operation period for each one or a plurality of columns.
摘要:
A power supply device that switches one of a first power supply, a second power supply, and a third power supply, all of which supply power to an auxiliary device, to a transfer gate in a CMOS image sensor having a photodiode and outputs the corresponding power to the transfer gate is disclosed. The device includes: a first transistor driven by the second power supply and outputting power of the second power supply to the transfer gate; a second transistor driven by the second power supply and outputting power of the first power supply to the transfer gate; a third transistor driven by the third power supply and outputting power of the third power supply to the transfer gate; and a fourth transistor located before the second transistor, driven by the first power supply, and outputting power of the first power supply to a source of the second transistor.