Invention Grant
- Patent Title: TOf distance sensor and method for operation thereof
- Patent Title (中): TOf距离传感器及其操作方法
-
Application No.: US14100319Application Date: 2013-12-09
-
Publication No.: US09377532B2Publication Date: 2016-06-28
- Inventor: Dieter Huber , Markus Ledergerber
- Applicant: ESPROS Photonics AG
- Applicant Address: CH Sargans
- Assignee: ESPROS Photonics AG
- Current Assignee: ESPROS Photonics AG
- Current Assignee Address: CH Sargans
- Agency: Burr & Brown, PLLC
- Priority: EP12008305 20121212
- Main IPC: G01C3/08
- IPC: G01C3/08 ; G01S17/08 ; G01S7/486

Abstract:
A TOF distance sensor is proposed, for measuring a distance from an object, comprising an electronics apparatus for generating a modulation signal and for generating four correlation signals, which are phase shifted with respect to one another and which have the same period as the modulation signal; a radiation source for emitting radiation, which is modulated by the modulation signal; a reception apparatus, which has a predetermined spatial relationship with respect to the radiation source, for receiving radiation reflected by the object; a correlation apparatus for correlating the received radiation or a corresponding variable with respectively one of the four correlation signals in order to form four corresponding correlation values; a difference-forming apparatus for forming two difference correlation values from the difference between respectively two of the correlation values; a calculation apparatus embodied to calculate the distance with a predetermined linear dependence on the two difference correlation values.
Public/Granted literature
- US20140160459A1 TOF DISTANCE SENSOR AND METHOD FOR OPERATION THEREOF Public/Granted day:2014-06-12
Information query