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Patent Searching and Data


Title:
METHOD AND APPARATUS FOR UPDATING TIME, AND MOVABLE PLATFORM
Document Type and Number:
WIPO Patent Application WO/2019/119228
Kind Code:
A1
Abstract:
Embodiments of the present invention provide a method and apparatus for updating time, and a movable platform. The method comprises: obtaining at least two change amounts of a counter within a first preset period; averaging the at least two change amounts; determining the crystal oscillator frequency of the counter on the basis of the averaging result and the first preset period; and updating local time on the basis of the crystal oscillator frequency. The embodiments of the present invention can reduce the complexity of time update and reduce costs while ensuring time update accuracy, without requiring a dedicated hardware circuit.

Inventors:
ZHANG, Yansong (6F HKUST SZ IER BLdg, No. 9 Yuexing 1st Rd.,Hi-Tech Park , Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
PENG, Xiapeng (6F HKUST SZ IER BLdg, No. 9 Yuexing 1st Rd.,Hi-Tech Park , Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
FANG, Lingjiang (6F HKUST SZ IER BLdg, No. 9 Yuexing 1st Rd.,Hi-Tech Park , Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
Application Number:
CN2017/117010
Publication Date:
June 27, 2019
Filing Date:
December 18, 2017
Export Citation:
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Assignee:
SZ DJI TECHNOLOGY CO., LTD. (6F HKUST SZ IER BLdg, No. 9 Yuexing 1st Rd.,Hi-Tech Park , Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
International Classes:
H03K3/011
Foreign References:
CN103427793A2013-12-04
CN102932084A2013-02-13
US20140016543A12014-01-16
US7579919B12009-08-25
US20030222708A12003-12-04
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (8F-6, Bldg. A Winland International Center,No. 32 Xizhimen North Street. Haidian District, Beijing 2, 100082, CN)
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