https://www.patsnap.com/resources/blog/rd-blog/cmos-image-sensor-ai-and-machine-learning-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Sensors & MEMS · Patent Landscape
CMOS Image Sensor AI and Machine Learning Patents
  • Filing activity peaked in 2023 at 10 records then eased back toward the 2022 midpoint of 6, suggesting the field is past its first filing wave rather than still accelerating.
  • H04N pictorial-communication claims dominate appearing in 47 of 59 records, while G06N AI-model claims appear in only 10 — most inventions still frame the sensor, not the model, as the point of novelty.
  • The United States receives the largest share of filings with 25 records, ahead of PCT filings at 14 and EPO at 10, pointing to a US-centred first-filing strategy for this niche.
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59
Published Records
58%
Top-5 Share of All Records
+150%
3-Yr Growth (lag-adjusted)
US
Leading Jurisdiction
Published byPatsnap Research··7 min readSourced from Patsnap Eureka
Overview

What this landscape covers

This review tracks patent families at the intersection of CMOS image sensors and machine learning: pixel-level or near-sensor computation, computational imaging pipelines, and on-chip neural network inference applied to imaging. The underlying search combines title/abstract terms for image sensor and in-sensor computing with IPC classifications spanning H04N25 (image sensor circuitry), G06N3 (neural network computing) and H01L27/146 (photosensitive semiconductor devices), so it captures both the hardware substrate and the algorithmic layer sitting on top of it.

Coverage runs from 2015 through the 2026 data cut-off, though the most recent one to two years are understated because publication typically lags filing by around 18 months. With 59 total patent families, this is a compact, still-forming niche rather than a mature, high-volume field — read the rankings below as a map of who has staked early claims, not a settled hierarchy.

Filing activity by year, 2017–2026
  1. 1THE GOVERNING COUNCIL OF THE UNIV OF TORONTO11
  2. 2HUAWEI TECH CO LTD9
  3. 3GOOGLE LLC5
  4. 4DREAM CHIP TECH5
  5. 5SONY SEMICON SOLUTIONS CORP4
  6. 6AMS OSRAM ASIA PACIFIC PTE LTD4
  7. 7FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV3
  8. 8SONY EUROPE BV3
  9. 9RGT UNIV OF CALIFORNIA3
  10. 10SCHOBERL MICHAEL2
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on CMOS Image Sensor AI and Machine Learning covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP

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The data

Filing trend and technology composition

Two views of the same 59 families: how filing volume has moved year over year, and which IPC subclasses carry the claim weight.

A filing curve that has already crested

Annual filings rose from 3 in 2017 to a peak of 10 in 2023, then pulled back toward the 2022 level of 6. Combined with the publication lag on 2025-2026 filings, the honest reading is a field whose first wave of patenting has already happened, with the second wave yet to show up in the public record.

A filing curve that has already crested03581032017201820192020202120221020232024202502026Most recent year is partial — publication lag means later filings are not yet visible.

Sensor circuitry outweighs AI-model claims

H04N (pictorial communication) appears in 47 of 59 records and H01L (semiconductor devices) in 19, against just 10 for G06N (AI-model computing) and 9 for G06T (image data processing). Most applicants are still patenting the sensor architecture and readout path, with the learned model treated as an attached feature rather than the primary inventive concept.

Sensor circuitry outweighs AI-model claimsH04N · Pictorial communication (video…4779.7%H01L · Semiconductor devices1932.2%G06N · Computing based on AI models1016.9%G06T · Image data processing & genera…915.3%G02B · Optical elements & systems610.2%G06K · Data recognition & presentation58.5%G01J · Radiation & light measurement46.8%G03B · Photographic apparatus35.1%Other1525.4%

Shares are the percentage of the 59 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.

Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on CMOS Image Sensor AI and Machine Learning covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.

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Key patents

Representative filing and most-cited prior art

Representative record
WO2022225962A12022-10-27

WO2022225962A1 — Photon-counting CMOS image sensor for time-of-flight ranging

TRUSTEES OF DARTMOUTH COLLEGE

A photon-counting CMOS quanta image sensor can include a photon-counting pixel and a binary readout circuitry. The photon-counting pixel can be configured to generate an output voltage change when impinged by a photon. The binary readout circuitry can be coupled to the photon-counting pixel, and can be configured to output a first binary signal when receiving the output voltage change and a second binary signal when not receiving the output voltage change.Filed by Trustees of Dartmouth College, published 2022-10-27, this claims a binary-readout photon-counting pixel architecture aimed at time-of-flight ranging rather than conventional intensity imaging.

WO2022225962A1 — patent drawing 1WO2022225962A1 — patent drawing 2
View full record
Most-cited records in this corpus
#Publication no.Patent titleCitations
1US20160309065A1Light guided image plane tiled arrays with dense fiber optic bundles for light-field and high resolution imag…112
2US20170139131A1Coherent fiber array with dense fiber optic bundles for light-field and high resolution image acquisition41
3US20160006913A1Optical imaging apparatus, in particular for computational imaging, having further functionality27
4US20220206434A1System and method for deep learning-based color holographic microscopy18
5US20130063622A1Image sensor and method of capturing an image13
6US20220341782A1Image sensor and preparation method thereof, and electronic device11
7WO2018201219A1CMOS image sensors with pixel-wise programmable exposure encoding and methods for use of same11
8US10229943B2Method and system for pixel-wise imaging10
9WO2018195669A1Method and system for pixel-wise imaging9
10US20200351466A1Low Power Framework for Controlling Image Sensor Mode in a Mobile Image Capture Device8

Citation counts accumulate over time, so older filings such as the light-field and fiber-bundle imaging patents lead the table by influence rather than by current commercial relevance.

Each row carries its publication number; clicking a row searches Eureka by that number.

Source: Patsnap Eureka. Citation counts and representative records. Derived from a Patsnap search on CMOS Image Sensor AI and Machine Learning covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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Insights

What the numbers mean for a filing decision

Three read-throughs from the trend, classification and citation data above.

Filing momentum
10 in 2023
peak year

The wave has crested, not started

Filings climbed from 3 in 2017 to a peak of 10 in 2023 before easing back to the 2022 midpoint of 6. Given the 18-month publication lag, 2025-2026 numbers will fill in somewhat, but the shape of the curve already looks post-peak rather than early-stage.

Based on 59 patent families, 2017-2026
Claim distribution
47 vs 10
H04N vs G06N records

Sensor hardware still carries the novelty

H04N pictorial-communication claims appear in 47 of 59 records; G06N AI-model claims appear in only 10. Novelty is overwhelmingly anchored in sensor circuitry and readout design, with the neural network typically claimed as an application rather than the invention itself.

IPC subclass counts, this corpus
Filing geography
25 US filings
largest receiving office

A US-first filing pattern with thin multi-jurisdiction cover

The United States receives 25 filings, ahead of PCT applications at 14 and the EPO at 10, with Canada and China at 3 each. That gap between US filings and PCT/EPO cover suggests many applicants are not yet pursuing broad international protection for this specific claim combination.

Receiving office counts, this corpus
Citation concentration
112 citations
top-cited record

Influence sits with older imaging-hardware patents

The most-cited record in the corpus, on light-guided tiled image-plane arrays, carries 112 citations — far ahead of the newest deep-learning-based entries. That gap reflects age and corpus search terms more than present-day relevance; recent AI-processing filings simply have not had time to accumulate citations.

Citation counts, most-cited records
Eureka AI Agent
Looking for what nobody has claimed yet?

Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to cmos image sensor ai and machine learning, with the prior art for and against each one.

Find the white space →
Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on CMOS Image Sensor AI and Machine Learning covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Players

Who is filing, and where the field is still open

Assignee activity in this corpus is thin rather than concentrated: several named organisations show zero filings in the latest tracked year, consistent with a niche that has passed its first filing peak. Co-assignee pairs are rare — only 6 across the whole set — meaning most work here is being filed by single organisations rather than through joint ventures.

Academic filers
0 latest-year filings
University of Toronto, Dartmouth

Universities anchor the early record but have gone quiet recently

University of Toronto and the Trustees of Dartmouth College both appear in this dataset, including the representative photon-counting sensor record, but neither shows activity in the most recent tracked year.

Recent-year momentum table
Established imaging suppliers
0 latest-year, -100% YoY
Sony Semiconductor Solutions

A named sensor leader has pulled back sharply

Sony Semiconductor Solutions shows a -100% year-on-year change with zero filings in the latest tracked year, despite Sony-affiliated entities appearing among the corpus's co-assignee pairs. That is a pause worth watching rather than an exit signal, given publication lag.

Recent-year momentum table
Platform and optics entrants
0 latest-year filings
Huawei, Google, ams Osram (Heptagon)

Large platform players are present but not currently active

Huawei, Google and ams-affiliated Heptagon Micro Optics all appear in the assignee set with zero filings in the latest tracked year. Their presence at all signals this claim space is on the radar of large players, even where current filing volume is low.

Recent-year momentum table
🔍
Under-claimed sub-areas worth checking before filing
These branches show thin representation in the IPC composition and citation table relative to the core sensor-circuitry claims.
binary/quanta pixel readout for ToFon-chip neural network inference at pixel levelevent-driven computational imagingphoton-counting sensor architecturesAI-assisted color holographic microscopy
Rank all filers by momentum →
Recent-year filing momentum by assignee
AssigneeRecent yearYoY
University of Toronto0
Huawei Technologies Co., Ltd.0
Dream Chip Technologies GmbH0
Sony Semiconductor Solutions Corporation0-100%
Heptagon Micro Optics Pte Ltd (ams Osram)0
Google LLC0
Lytro, Inc.0
Sony Europe B.V.0-100%
Source: Patsnap Eureka. Assignee-level momentum. Derived from a Patsnap search on CMOS Image Sensor AI and Machine Learning covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
What's next

Where to take this analysis

The dataset points to open ground rather than a settled ranking. Two directions make sense next.

Map the readout-architecture sub-claims in detail

With H04N claims at 47 of 59 records and G06N claims at only 10, the sensor readout layer is where most freedom-to-operate risk actually sits, not the AI model layer most teams assume is contested.

Explore in Eureka

Track dormant assignees for re-entry signals

Several named organisations, including Sony Semiconductor Solutions, Huawei and Google, show zero filings in the latest tracked year. A renewed filing from any of them would be a meaningful signal given how thin current activity is.

Set up monitoring in Eureka
Source: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on CMOS Image Sensor AI and Machine Learning covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
FAQ

Common questions about this landscape

Answers are grounded in the same dataset. Derived from a Patsnap search on CMOS Image Sensor AI and Machine Learning covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP

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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.

Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.

Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.

Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company's registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.