O2micro International Limited

Maishi Electronic (shanghai) Ltd.

02micro Inc.

Shenghong Lu

James Wang

Jun Chen

Xiaoguang Yu

Zhongbao Feng

Yiliang Liu

A database for a set of orientation-matched road (OMR) sections is searched according to a calculated orientation of an object and orientations of road sections stored in the database. The OMR sections are searched for a position-matched road (PMR) set according to a calculated position of the object and positions of the OMR sections. The PMR set includes one or more PMR sections. The object is located using the PMR set.

Electronic systems for locating objects

A global positioning system and dead reckoning (GPS&DR) integrated navigation system includes a GPS receiver coupled to a moving object for periodically generating GPS navigation information of said moving object, a DR system coupled to said moving object for periodically calculating DR navigation information of said moving object, and a filter coupled to said GPS receiver and said DR system for periodically calculating navigation information of said moving object, wherein said filter gets observation information by integrating said GPS navigation information and said DR navigation information according to a weight value of said GPS navigation information and a weight value of said DR navigation information, and calculates a current navigation information by integrating said observation information with previous navigation information from a plurality of previous cycles.

Global positioning system and dead reckoning (GPSandDR) integrated navigation system

Growing community of inventors

Chengdu, China

Shenghong Lu