JP7150112B2 - フルデジタルのモノリシックなフレーム平均化レシーバに関する非結像spadアーキテクチャの集約 - Google Patents
フルデジタルのモノリシックなフレーム平均化レシーバに関する非結像spadアーキテクチャの集約 Download PDFInfo
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Description
本出願は、その内容が、本明細書に参照によって援用される、2017年8月7日出願された米国特許出願第15/670,082号に対する優先権を主張する。
I.概要
II.例示的なシステム
III.例示的な方法
Claims (20)
- システムであって、
複数のマクロピクセルであって、前記複数のマクロピクセルの各マクロピクセルが単一光子アバランシェダイオード(SPAD)のアレイを備え、各SPADが、前記システムの外部環境から光を検出すると、それぞれの光信号を提供するように構成されている、複数のマクロピクセルと、
メモリおよび少なくとも1つのプロセッサを備えた制御装置であって、前記少なくとも1つのプロセッサが、動作を行うように前記メモリに格納された命令を実行し、前記動作が、
聴取期間の間に、前記複数のマクロピクセルのそれぞれの部分からそれぞれの光信号を受信することと、
前記複数のマクロピクセルの前記それぞれの部分からの前記それぞれの光信号に基づいて出力を提供することであって、前記出力が一連のフレームを備え、前記一連のフレームの各フレームが、所与の聴取期間の間にそれぞれの光信号を提供した、前記複数のマクロピクセルの前記それぞれの部分のSPADの平均数を含むことと、を含む、制御装置と、を備える、システム。 - 前記複数のマクロピクセルおよび前記制御装置が、モノリシックな単一チップレシーバを提供するように、基板上に配置されている、請求項1に記載のシステム。
- 前記複数のマクロピクセルが、2N個のマクロピクセルを含み、Nが少なくとも10である、請求項1に記載のシステム。
- フレーム集約ブロックをさらに備え、前記動作が、前記フレーム集約ブロックに前記一連のフレームを集約させることをさらに含み、前記フレーム集約ブロックが、加算器回路およびデジタルバッファ回路を備え、集約されたフレームの最大数が少なくとも2Fであり、Fが少なくとも6である、請求項3に記載のシステム。
- 前記メモリが、少なくとも5キロバイト*(N+F)を含む静的ランダムアクセスメモリブロックを備え、Fが少なくとも6である、請求項4に記載のシステム。
- 前記フレーム集約ブロックに通信可能に結合されたパルス処理ブロックをさらに備え、前記動作が、前記一連のフレームに基づいて、前記パルス処理ブロックに、パルス到着時刻またはパルス強度のうちの少なくとも1つを判定させること、をさらに含む、請求項4に記載のシステム。
- 前記パルス処理ブロックが、少なくとも200,000個の抵抗トランジスタ論理(RTL)ゲートを備える、請求項6に記載のシステム。
- 出力ブロックをさらに備え、前記出力ブロックが前記パルス処理ブロックに通信可能に結合されており、前記出力ブロックが高速シリアルインターフェースを備え、前記動作が、前記処理された一連のフレームに基づいて、前記出力ブロックに、シリアル出力を提供させること、をさらに含む、請求項6に記載のシステム。
- 前記高速シリアルインターフェースが、車両制御装置または無線通信インターフェースのうちの少なくとも1つに通信可能に結合された、周辺構成要素相互接続エクスプレス(PCIe)バスを備える、請求項8に記載のシステム。
- クロック信号を提供するように構成されたクロックをさらに備え、前記複数のマクロピクセル、前記フレーム集約ブロック、前記パルス処理ブロック、および前記出力ブロックのうちの少なくともいくつかの動作が、前記クロック信号に基づく、請求項8に記載のシステム。
- 各SPADが、1550nmまたは780nmのうちの少なくとも1つの波長を備えた光を検出するように構成されている、請求項1に記載のシステム。
- 各マクロピクセルの光子検出効率が、所与のマクロピクセルにおけるSPADフィルファクタを乗じた所与のSPADの光子検出確率(PDP)を含み、各マクロピクセルの前記光子検出効率が少なくとも8%である、請求項1に記載のシステム。
- 前記聴取期間が、300ピコ秒以上、500ピコ秒以下の範囲内にある、請求項1に記載のシステム。
- 各マクロピクセルに結合された、マイクロレンズアレイをさらに備える、請求項1に記載のシステム。
- 各マクロピクセルが、1024個または2048個のうちの少なくとも1つの個数のSPADを備える、請求項1に記載のシステム。
- 前記複数のマクロピクセルが、16個、32個、または64個のうちの少なくとも1つの個数のマクロピクセルを備える、請求項1に記載のシステム。
- 聴取期間の間に、複数のマクロピクセルのそれぞれの部分からそれぞれの光信号を受信することであって、前記複数のマクロピクセルの各マクロピクセルが単一光子アバランシェダイオード(SPAD)のアレイを備え、各SPADが、外部環境から光を検出すると、それぞれの光信号を提供するように構成されていることと、
前記複数のマクロピクセルの前記それぞれの部分からの前記それぞれの光信号に基づいて出力を提供することであって、前記出力が一連のフレームを備え、前記一連のフレームの各フレームが、所与の聴取期間の間にそれぞれの光信号を提供した、前記複数のマクロピクセルの前記それぞれの部分のSPADの平均数を含むことと、を含む、方法。 - フレーム集約ブロックに、前記一連のフレームを集約させること、をさらに含み、前記フレーム集約ブロックが、加算器回路およびデジタルバッファ回路を備え、集約されたフレームの最大数が少なくとも2Fであり、Fが少なくとも6である、請求項17に記載の方法。
- 前記一連のフレームに基づいて、パルス処理ブロックに、パルス到着時刻またはパルス強度のうちの少なくとも1つを判定させること、をさらに含む、請求項18に記載の方法。
- 前記処理された一連のフレームに基づいて、出力ブロックに、シリアル出力を提供させること、をさらに含む、請求項19に記載の方法。
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US15/670,082 | 2017-08-07 | ||
US15/670,082 US10677899B2 (en) | 2017-08-07 | 2017-08-07 | Aggregating non-imaging SPAD architecture for full digital monolithic, frame averaging receivers |
JP2020506149A JP6931120B2 (ja) | 2017-08-07 | 2018-08-02 | フルデジタルのモノリシックなフレーム平均化レシーバに関する非結像spadアーキテクチャの集約 |
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KR102609223B1 (ko) | 2017-03-01 | 2023-12-06 | 아우스터, 인크. | 라이더를 위한 정확한 광검출기 측정 |
US10677899B2 (en) * | 2017-08-07 | 2020-06-09 | Waymo Llc | Aggregating non-imaging SPAD architecture for full digital monolithic, frame averaging receivers |
EP3977176A1 (en) * | 2018-05-28 | 2022-04-06 | Universitat de Barcelona | Reducing optical crosstalk effects in sipms |
US11733384B2 (en) | 2019-02-20 | 2023-08-22 | Samsung Electronics Co., Ltd. | Single pass peak detection in LIDAR sensor data stream |
DE102019207463A1 (de) * | 2019-05-22 | 2020-11-26 | Robert Bosch Gmbh | Betriebsverfahren und Steuereinheit für eine SPAD-basierte Detektoranordnung, LiDAR-System und Arbeitsvorrichtung |
CN111121964A (zh) * | 2019-12-13 | 2020-05-08 | 南京理工大学 | 远场激光光斑测量装置 |
KR20230010620A (ko) * | 2020-01-27 | 2023-01-19 | 센스 포토닉스, 인크. | Dram 기반 lidar 픽셀 |
KR20220145845A (ko) * | 2020-03-05 | 2022-10-31 | 옵시스 테크 엘티디 | 솔리드 스테이트 LiDAR용 잡음 필터링 시스템 및 방법 |
US11644553B2 (en) | 2020-04-17 | 2023-05-09 | Samsung Electronics Co., Ltd. | Detection of reflected light pulses in the presence of ambient light |
US11721031B2 (en) * | 2020-10-28 | 2023-08-08 | Stmicroelectronics (Research & Development) Limited | Scalable depth sensor |
WO2023278547A1 (en) * | 2021-06-30 | 2023-01-05 | Sense Photonics, Inc. | Highly parallel large memory histogramming pixel for direct time of flight lidar |
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