TIME DOMAIN A/D CONVERTER GROUP AND SENSOR DEVICE USING THE SAME

    公开(公告)号:US20190109599A1

    公开(公告)日:2019-04-11

    申请号:US16194844

    申请日:2018-11-19

    IPC分类号: H03M1/12 H03M1/34 H03L7/081

    摘要: A time domain A/D converter group includes a plurality of individual A/D converters, each of the individual A/D converters is connected to a reference signal generation circuit to generate a first reference signal for sweeping in a full scale range and a second reference signal for repeating plurality of times to sweep in a limited voltage range, and each of the individual A/D converters includes a reference voltage selection circuit for switching the first reference signal or the second reference signal, a comparator for comparing an input signal with the first reference signal or the second reference signal, for generating a comparison output signal, an internal A/D converter for performing an A/D conversion using the comparison output signal from the comparator, and an accumulation adder-subtractor for outputting an average signal of A/D conversion values obtained from the A/D conversion when the second reference signal is selected.

    SOLID-STATE IMAGE PICKUP APPARATUS AND DRIVING METHOD FOR SOLID-STATE IMAGE PICKUP APPARATUS

    公开(公告)号:US20190082129A1

    公开(公告)日:2019-03-14

    申请号:US15743100

    申请日:2016-06-03

    申请人: SONY CORPORATION

    摘要: The number of correction pixels necessary for removal of noise is reduced. A solid-state image pickup apparatus includes a pixel array unit in which image signal generation pixels for generating analog image signals in response to light irradiated thereupon and correction signal generation pixels for generating analog correction signals for correcting the image signals are arranged in a matrix pattern. A conversion unit performs first conversion that is conversion from the analog image signals generated by the image signal generation pixels arranged in a row in the matrix pattern into digital image signals. The conversion unit further performs second conversion, which is conversion performed at substantially the same time with the first conversion, from the analog correction signals generated by the correction signal generation pixels arranged in a plurality of rows in the matrix pattern into digital correction signals. A correction unit performs correction of the digital image signals with the digital correction signals generated in the plurality of rows.

    SOLID-STATE IMAGING DEVICE, DRIVING METHOD, AND ELECTRONIC DEVICE

    公开(公告)号:US20180352200A1

    公开(公告)日:2018-12-06

    申请号:US16041128

    申请日:2018-07-20

    申请人: SONY CORPORATION

    摘要: Provided is a solid-state imaging device including: a pixel section configured to include a plurality of pixels arranged in a matrix form, the plurality of pixels performing photoelectric conversion; column signal lines configured to transmit pixel signals output from the pixels in units of columns; an AD converting section configured to include a comparator that compares a reference signal serving as a ramp wave with the pixel signals transmitted via the column signal line and convert a reference level and a signal level of the pixel signals into digital signals independently based on a comparison result of the comparator; a switch configured to be connected with the column signal lines; and a control section configured to turn on the switch only during a certain period of time in a period of time in which the comparator is reset and cause the column signal lines to be short-circuited.

    SOLID-STATE IMAGING DEVICE AND IMAGING APPARATUS

    公开(公告)号:US20180343411A1

    公开(公告)日:2018-11-29

    申请号:US16055509

    申请日:2018-08-06

    申请人: SONY CORPORATION

    发明人: Keiji MABUCHI

    摘要: An imaging device includes a pixel region in which light sensing pixels are grouped into pixel-units that each include multiple pixels, each column including pixels from at least two of the pixel-units. Each of the pixel-units is connected, via a corresponding readout line, to a corresponding readout unit configured to perform analog-to-digital conversion on pixel signals output thereto. A scanning unit that extends in a column direction is configured to select pixels for readout by applying row scanning pulses to scan lines connected to rows. A scanning unit that extends in a row direction for applying readout-enabling scan pulses to lines connected to columns is omitted. Those pixels that are selected for readout by one of the row scanning pulses are read out independently of any enabling pulses applied to lines connected to columns.