Invention Grant
- Patent Title: Ad converter, signal processing method, solid-state imaging device, and electronic apparatus
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Application No.: US14798111Application Date: 2015-07-13
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Publication No.: US09894299B2Publication Date: 2018-02-13
- Inventor: Kyoichi Kanagawa
- Applicant: Sony Corporation
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Michael Best & Friedrich LLP
- Priority: JP2013-119933 20130606
- Main IPC: H04N3/14
- IPC: H04N3/14 ; H04N5/359 ; H04N5/378 ; H04N5/3745 ; H04N5/357 ; H04N5/335 ; H03M1/66

Abstract:
Provided is an AD converter including a first AD converting unit in which pixel columns of a pixel array are divided into at least two groups, and that compares a first ramp signal and a first pixel signal output from a first group of the pixel columns and performs AD conversion on the first pixel signal; and a second AD converting unit that compares a second ramp signal and a second pixel signal output from a second group of the pixel columns and performs AD conversion on the second pixel signal, in which the first ramp signal is a signal of which a level is decreased with a constant slope over time in a D-phase period for detecting a signal level of a pixel signal, and the second ramp signal is a signal of which a level is increased with a constant slope over time in the D-phase period.
Public/Granted literature
- US20150326803A1 AD CONVERTER, SIGNAL PROCESSING METHOD, SOLID-STATE IMAGING DEVICE, AND ELECTRONIC APPARATUS Public/Granted day:2015-11-12
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