Title:
撮像装置
Document Type and Number:
Japanese Patent JP7219357
Kind Code:
B2
Abstract:
An imaging device with low power consumption is provided. A pixel circuit has a configuration of detecting difference data between data of a reference frame and data of a target frame in a pixel, and a peripheral circuit has a configuration of efficiently converting the difference data by A/D conversion so as to obtain high compressibility. Difference data which is encoded by compression is written into a memory element and read sequentially. At this time, the frequency of a clock signal can be lowered in accordance with the amount of data. The read data is expanded and the expanded data is added to the reference frame to constitute an image.
Inventors:
Takayuki Ikeda
Application Number:
JP2022005832A
Publication Date:
February 07, 2023
Filing Date:
January 18, 2022
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
H04N25/70; H01L21/8234; H01L27/06; H01L27/088; H01L27/146; H01L29/786; H04N25/79
Domestic Patent References:
| JP7012796B2 | ||||
| JP2011049901A | ||||
| JP2014197862A | ||||
| JP2002064751A | ||||
| JP2013127829A |