Navigation apparatus for a vehicle

Patent 5935191 Issued on August 10, 1999. Estimated Expiration Date:

November 7, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Accelerometer method of indicating rolling resistance of a vehicle
Patent #: 4003241
Issued on: 01/18/1977
Inventor: Thomas

Self-aligning pitch and azimuth reference unit
Patent #: 4166406
Issued on: 09/04/1979
Inventor: Maughmer

Vehicle navigation system provided with an adaptive inertial navigation system based on the measurement of the speed and lateral acceleration of the vehicle and provided with a correction unit for correcting the measured values
Patent #: 4758959
Issued on: 07/19/1988
Inventor: Thoone , et al.

Vehicle position determining apparatus Patent #: 5058023
Issued on: 10/15/1991
Inventor: Kozikaro

Inventors

Assignee

Matsushita Electric Industrial Co., Ltd.

Application

No. 553153 filed on 11/07/1995

US Classes:

701/207, Employing position determining equipment73/504.03, Multisensor for both angular rate and linear acceleration701/217, Using dead-reckoning apparatus702/87, Zeroing (e.g., null)702/94Position measurement

Examiners

Primary: Cuchlinski, William A. Jr.
Assistant: Pipala, Edward

Attorney, Agent or Firm

Ratner & Prestia

International Class

G06F 017/00

Foreign Application Priority Data

1994-11-08 JP

Abstract

The present invention relates to a navigation sppratus for finding a vehicle location by calculating on the basis of an output data of an acceleration detecting means for detecting a vehicle acceleration.The navigation apparatus provides at least one acceleration detecting means for detecting a vehicle acceleration and stop judge means for judging a vehicle stopping state from the output variation of the acceleration detecting means.