US 10,455,174 B2Granted

Imaging device and electronic appliance

AssigneeSemiconductor Energy Laboratory Co., Ltd.

InventorTakayuki Ikeda

Life of this patent

Estimating the term…

Loading patent…

Abstract

An imaging device that operates at high speed is provided. The imaging device includes an imaging circuit, two or more image processing blocks, and two or more selectors. The image processing blocks each include an image processing unit and a retention circuit, and the selectors each include a switch unit and a retention circuit. The imaging circuit has a function of generating image data by performing imaging operation. The image processing unit has a function of processing the image data generated by the imaging circuit. The retention circuit included in the image processing block has a function of receiving and retaining a parameter that is necessary for the image processing unit to perform processing. The switch unit has a function of outputting the image data generated by the imaging circuit or the image data processed by the image processing unit. The retention circuit included in the selector has a function of receiving and retaining a parameter that is output from the switch unit. The first retention circuit and the second retention circuit each include a transistor including a metal oxide in a channel formation region.

Claims20

Dependent claims

An imaging device comprising:

an imaging circuit;
a first controller;
a plurality of circuits including a first circuit and a second circuit;
and
a plurality of selectors including a first selector and a second selector, wherein each of the plurality of circuits includes an image processing unit and a first retention circuit,
wherein each of the plurality of selectors includes a switch unit and a second retention circuit,
wherein the first retention circuit includes a first transistor,
wherein the second retention circuit includes a second transistor,
wherein the imaging circuit is configured to generate image data by performing imaging operation,
wherein the first controller is configured to control power supply to the plurality of circuits,
wherein the image processing unit of the first circuit is configured to process image data that has been generated by the imaging circuit,
wherein the image processing unit of the first circuit is configured to process image data that has been processed by the image processing unit of the second circuit,
wherein the first retention circuit of the first circuit is configured to receive a first parameter,
wherein the first retention circuit of the first circuit is configured to retain the first parameter while power supply to the first circuit is interrupted,
wherein the switch unit of the first selector is configured to output the image data selected from the image data that has been generated by the imaging circuit and the image data that has been processed by the image processing unit of the first circuit or the second circuit,
wherein the second retention circuit of the first selector is configured to receive a second parameter,
wherein the second retention circuit of the first selector is configured to retain the second parameter while power supply to the first selector is interrupted, and
wherein the first transistor and the second transistor each include a metal oxide in a channel formation region.

15 more elements

An imaging device comprising:

an imaging circuit;
a first controller;
a plurality of circuits including a first circuit and a second circuit;
and
a plurality of selectors including a first selector and a second selector,
wherein each of the plurality of circuits includes an image processing unit and a first retention circuit,
wherein each of the plurality of selectors includes a switch unit and a second retention circuit,
wherein the first retention circuit includes a first transistor,
wherein the second retention circuit includes a second transistor,
wherein the imaging circuit is configured to generate image data by performing imaging operation,
wherein the first controller is configured to control power supply to the plurality of circuits,
wherein the image processing unit of the first circuit is configured to process image data that has been generated by the imaging circuit,
wherein the image processing unit of the first circuit is configured to process image data that has been processed by the image processing unit of the second circuit,
wherein the first retention circuit of the first circuit is configured to receive a first parameter,
wherein the first retention circuit of the first circuit is configured to retain the first parameter while power supply to the first circuit is interrupted,
wherein the switch unit of the first selector is configured to output the image data selected from the image data that has been generated by the imaging circuit and the image data that has been processed by the image processing unit of the first circuit or the second circuit,
wherein the second retention circuit of the first selector is configured to receive a second parameter, and
wherein the second retention circuit of the first selector is configured to retain the second parameter while power supply to the first selector is interrupted.

15 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/842,938Filed 15 Dec 2017
Published: US 2018/0184030 A128 Jun 2018
Granted: 22 Oct 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

H04N 25/709
SSIS architectures; Circuits associated therewith: circuitry for control of the power supply
H10F 39/80
Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors…:…
H04N 25/532
Control of the integration time: by controlling global shutters in CMOS SSIS
H04N 25/77
Addressed sensors, e.g. MOS or CMOS sensors: pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components

Family

US 2018/0184030 A1Pre-grant publication · published 28 Jun 2018
US 10,455,174 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key