The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2020
Filed:
Apr. 03, 2018
Sz Dji Technology Co., Ltd., Shenzhen, CN;
Xiang Liu, Shenzhen, CN;
Mingming Gao, Shenzhen, CN;
Xiaoping Hong, Shenzhen, CN;
Di Wu, Shenzhen, CN;
SZ DJI TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
Representative embodiments of the present technology include a device for measuring distance to an object. The device comprises a light emitter configured to emit an outbound light pulse and a light sensor configured to receive a returning light pulse and output a pulse signal representing the returning light pulse. The device further comprises a field-programmable gate array (FPGA) coupled to the light sensor and including a time-to-digital converter (TDC) having a series of sequentially coupled delay units. Individual sequentially coupled delay units are associated with corresponding individual delay times. At least some of the sequentially coupled delay units have different individual delay times. The TDC is configured to measure timing information of the pulse signal based at least in part on the individual delay times of the sequentially coupled delay units. The device further includes a controller configured to calculate the distance to the object based on the timing information.