EP0453726A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Vehicle navigation apparatus

Assignee: Pioneer Corp

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Filing: 1991-02-21

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Granted: —

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Expires: 2011-02-21

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Abstract

Abstract A vehicle navigation apparatus comprises a self-contained positioning system, GPS positioning system, and a controller for performing arithmetic operation on the basis of the output of any one of the self-contained positioning system and the GPS positioning system so as to display various navigation information on a displayer. The controller corrects the bearing data based on the self-contained positioning system with respect to that based on the GPS positioning system if the bearing data of self-contained positioning system differs from that of the GPS positioning system by more than a predetermined value when a vehicle velocity determined on the basis of the position data from any one of the positioning systems exceeds a predetermined value.

Inventors

👤 Shinichi C/O Pioneer Electronic Corp. Takemura
👤 Tsutomu C/O Pioneer Electronic Corp. Honda
👤 Kenichiro C/O Pioneer Electronic Corp. Kawasaki
👤 Isao C/O Pioneer Electronic Corp. Endo
👤 Shozaburo C/O Pioneer Electronic Corp. Sakaguchi

Bibliographic Details

Application Number —

Jurisdiction EP

Data Source google_patents

Last Synchronized 2026-10-29 12:53

CPC Classifications

G; G01; G01S; G01S19/00; G01S19/38; G01S19/39; G01S19/42; G01S19/48; G01S19/49; G01C; G01C21/00; G01C21/26; G01C21/28

Claims Analysis

Total Claims: 1

Claim 1

Independent Claim 136 words

A vehicle navigation apparatus comprising a self-contained positioning system based on a bearing sensor, a vehicle velocity sensor and the like, a GPS positioning system based on a GPS receiver, and a controller for performing arithmetic operation on the basis of outputs from any one of the self-contained positioning system and the GPS positioning system so as to display various navigation information on a displayer; wherein said controller corrects bearing data from the self-contained positioning system with respect to bearing data of the GPS positioning system if the bearing data of self-contained positioning system differs from the bearing data from the GPS positioning system by more than a predetermined value when a vehicle velocity determined based on the outputs of any one of said self-contained positioning system and GPS positioning system is above a predetermined value.

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