Invention Grant
US09459352B2 Multi-sensor proximity sensing using a near zone light sensor and a far zone light sensor
有权
使用近区光传感器和远区光传感器的多传感器接近感应
- Patent Title: Multi-sensor proximity sensing using a near zone light sensor and a far zone light sensor
- Patent Title (中): 使用近区光传感器和远区光传感器的多传感器接近感应
-
Application No.: US14549000Application Date: 2014-11-20
-
Publication No.: US09459352B2Publication Date: 2016-10-04
- Inventor: James H. Becker , Tony R. Larson , Dimitar T. Trifonov , Zhongyan Sheng
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent John R. Pessetto; Charles A. Brill; Frank D. Cimino
- Main IPC: G01S17/32
- IPC: G01S17/32 ; G01S17/02 ; G01S7/481
Abstract:
An apparatus includes a light source to generate source light through an optically transmissive medium to an object. A receiver includes a near zone light sensor and a far zone light sensor positioned on a substrate with the light source. The near zone light sensor is positioned on the substrate to, in response to the generated source light, receive reflected source light from the object and the optically transmissive medium. The far zone light sensor is positioned on the substrate to, in response to the source light, receive the reflected source light from the object and to receive a reduced quantity of the reflected source light from the optically transmissive medium compared to the near zone light sensor.
Public/Granted literature
- US20160146938A1 MULTI-SENSOR PROXIMITY SENSING Public/Granted day:2016-05-26
Information query
