Patent ID: 9332524
Filing Date: 2016-05-03
CPC Classification: G01S,H04W

Claim Text:
1. A halt continuation determination method, comprising: intermittently measuring a location of a mobile unit based on a satellite signal; determining whether the mobile unit is halted based on the location of the mobile unit intermittently measured via the satellite signal; setting a first halt determination region, in response to a determination that the mobile unit is halted, wherein the first halt determination region is based on the location of the mobile unit when it was determined the mobile unit is halted and the first halt determination region is set as a first area around a first center and defined by a first radius extending from the center; setting a second halt determination region after a predetermined time has lapsed since the mobile unit is determined as halted and remains halted, wherein the second halt determination region is set as a second area around a second center and defined by a second radius extending from the second center, and the second halt determination region is different from the first halt determination region and overlaps with the first halt determination region; updating the second halt determination region by statistically processing results of the measuring of the location of the mobile unit taken since the determination that the mobile unit is halted and remains halted; and determining that the mobile unit is no longer halted when a newly measured location of the mobile unit is outside of the first halt determination region and the second halt determination region; and determining that the mobile unit continues to be halted when the newly measured location of the mobile unit is in any one of the first halt determination region and the second halt determination region.