Patent · US Expired

Systems, functional data, and methods to bias map matching

US6845320B2 · kind B2 · utility

6Cited by
15References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 11, 2003
Grant dateJan 18, 2005
Priority date—
Expiry dateMar 9, 2023

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01C21/30
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Devices, systems, functional data and methods are provided for biasing an active location to an acceptable location within a planned route of a map. The navigational device with map biasing capabilities includes a processor communicating with a memory. In biasing a map, an active position and a planned position are received, and an active score and a planned score are associated with each position, respectively. The active position is checked to ensure it falls within a second range, and if it does the active score is made to fall within a first range associated with the planned score, such that the active position is biased to appear as if it were the planned position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.