发明公开
EP3591437A1 DISTANCE MEASUREMENT DEVICE, DISTANCE MEASUREMENT METHOD, AND DISTANCE MEASUREMENT SYSTEM
审中-公开
基本信息:
- 专利标题： DISTANCE MEASUREMENT DEVICE, DISTANCE MEASUREMENT METHOD, AND DISTANCE MEASUREMENT SYSTEM
- 申请号：EP18760328.7 申请日：2018-02-14
- 公开(公告)号：EP3591437A1 公开(公告)日：2020-01-08
- 发明人： NAMBA, Kazuhide
- 申请人： Sony Semiconductor Solutions Corporation
- 申请人地址： 4-14-1, Asahi-cho Atsugi-shi, Kanagawa 243-0014 JP
- 专利权人： Sony Semiconductor Solutions Corporation
- 当前专利权人： Sony Semiconductor Solutions Corporation
- 当前专利权人地址： 4-14-1, Asahi-cho Atsugi-shi, Kanagawa 243-0014 JP
- 代理机构： MFG Patentanwälte Meyer-Wildhagen Meggle-Freund Gerhard PartG mbB
- 优先权： JP2017037701 20170228; JP2017115827 20170613
- 国际公布： WO2018159289 20180907
- 主分类号： G01S17/89
- IPC分类号： G01S17/89 ; G01S7/486
摘要：
The present disclosure relates to a distance measurement apparatus, a distance measurement method, and a distance measurement system that permits speedup of operation of a TOF sensor as a whole by speeding up operation of ADCs.
In a distance measurement apparatus according to an aspect of the present disclosure, a light reception section includes a plurality of AD conversion sections for AD conversion of pixel signals read out from the pixels. The AD conversion sections switch between first AD conversion performed with an accuracy of a first bit count and second AD conversion performed with an accuracy of a second bit count that is larger than the first bit count. The calculation section measures a distance to the target by using a result of the first or second AD conversion by the AD conversion sections. The present disclosure is applicable to a vehicle-mounted TOF sensor, for example.
In a distance measurement apparatus according to an aspect of the present disclosure, a light reception section includes a plurality of AD conversion sections for AD conversion of pixel signals read out from the pixels. The AD conversion sections switch between first AD conversion performed with an accuracy of a first bit count and second AD conversion performed with an accuracy of a second bit count that is larger than the first bit count. The calculation section measures a distance to the target by using a result of the first or second AD conversion by the AD conversion sections. The present disclosure is applicable to a vehicle-mounted TOF sensor, for example.
IPC结构图谱:
| G | 物理 |
| --G01 | 测量；测试 |
| ----G01S | 无线电定向；无线电导航；采用无线电波测距或测速；采用无线电波的反射或再辐射的定位或存在检测；采用其他波的类似装置 |
| ------G01S17/00 | 应用除无线电波外的电磁波的反射或再辐射系统，例如，激光雷达系统 |
| --------G01S17/88 | .专门适用于特定应用的激光雷达系统 |
| ----------G01S17/89 | ..用于绘地图或成像的激光雷达系统 |