Patent · US Expired

Vehicle navigation system

US5343399A · kind A · utility

65Cited by
5References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 23, 1993
Grant dateAug 30, 1994
Priority date
Expiry dateJul 23, 2013

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG08G1/096872
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

In a vehicle navigation system, when a voice control part, which is displayed on a screen, is switched off, a voice control part inhibits voice guidance from being output to a speaker. Now, if a current-location/guide selection key is operated, the voice control part creates voice guidance according to the operation of the selection key and outputs the voice guidance from the speaker. With this navigation system, aural route guiding is possible only at the driver's request.

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