Navigation device that evaluates points of interest based on user utterance

Patent metadata

Field	Value
Publication number	US-9644985-B2
Application number	US-201214422602-A
Country	US
Kind code	B2
Filing date	Oct 10, 2012
Priority date	Oct 10, 2012
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

Because a navigation device that provides guidance on a moving route and displays map data on a display screen on the basis of the map data and the position of a moving object automatically acquires evaluation information for a point or a region from a recognition result and position information, and registers the evaluation information, the navigation device can leave an impression (evaluation) of the point or the region automatically and safely without requiring the user's special operation. Further, by adding the evaluation information to map data and displaying this map data at the time of use, the navigation device enables the user to revisit a point through which the user desires to pass once again, bypass a point through which the user desires to never pass again, and so on without requiring the user's work of consciously memorizing the impression of each point.

First claim

The invention claimed is:

1. A navigation device that provides guidance on a moving route and displays map data on a display screen on a basis of map data and a position of a moving object, said navigation device comprising:
a sound acquiring device that acquires a sound signal;
an utterance section detector that detects an utterance section of a user's uttered voice from the sound signal acquired by said sound acquiring device to extract voice data;
a voice recognizer that regularly recognizes the voice data extracted by said utterance section detector to extract a predetermined key word after said navigation device has been started;
an evaluation information acquiring device that refers to an evaluation information correspondence table in which a plurality of key words are brought into correspondence with an evaluation for each of said key words in advance to acquire evaluation information corresponding to the predetermined key word extracted by said voice recognizer;
a current position acquiring device that acquires a current position of said moving object;
an evaluation information with position generator that combines the evaluation information acquired by said evaluation information acquiring device and the current position acquired by said current position acquiring device to generate evaluation information with position;
an evaluation information with position storage that stores the evaluation information with position generated by said evaluation information with position generator; and
a map display unit that adds predetermined evaluation information with position stored in said evaluation information with position storage to said map data, and that also displays the map data to which said evaluation information with position is added on said display screen.

2. The navigation device according to claim 1 , wherein said navigation device further includes a moving path acquiring unit that acquires the current position which corresponds to the utterance section detected by said utterance section detector and which is acquired by said current position acquiring device as a moving path along which said moving object has moved during said user's utterance, and wherein said evaluation information with position generator combines the evaluation information acquired by said evaluation information acquiring device and the moving path acquired by said moving path acquiring unit to generate said evaluation information with position.

3. The navigation device according to claim 1 , wherein said navigation device further includes a date and time information acquiring unit that acquires current date and time information, and wherein said evaluation information with position generator adds the current date and time information acquired by said date and time information acquiring unit to generate said evaluation information with position, and said map display unit displays map data to which only evaluation information with position in which the current date and time acquired by said date and time information acquiring unit matches the date and time information added to said evaluation information with position is added on said display screen.

4. The navigation device according to claim 1 , wherein said navigation device further includes a weather information acquiring unit that acquires current weather information, and wherein said evaluation information with position generator adds the current weather information acquired by said weather information acquiring unit to generate said evaluation information with position, and said map display unit displays map data to which only evaluation information with position in which the current weather acquired by said weather information acquiring unit matches the weather information added to said evaluation information with position is added on said display screen.

5. The navigation device according to claim 1 , wherein said navigation device further includes a usage pattern acquiring unit that acquires a usage pattern of said moving object, and wherein said evaluation information with position generator adds the usage pattern of said moving object acquired by said usage pattern acquiring unit to generate said evaluation information with position, and said map display unit displays map data to which only evaluation information with position in which the usage pattern of said moving object acquired by said usage pattern acquiring unit matches the usage pattern added to said evaluation information with position is added on said display screen.

6. The navigation device according to claim 1 , wherein on a basis of both the current position acquired by said current position acquiring unit and the evaluation information with position stored in said evaluation information with position storage, said map display unit displays map data to which said evaluation information with position is added on said display screen when passing through a point, a region, or its neighborhood for which said evaluation information with position is registered, or only when it is scheduled to pass through the point, the region, or its neighborhood.

7. The navigation device according to claim 1 , wherein said navigation device further includes an evaluation information with position analyzer that analyzes a number of pieces of evaluation information with position stored in said evaluation information with position storage, and wherein said map display unit displays map data to which said evaluation information with position is added on said display screen on a basis of an analysis result acquired by said evaluation information with position analyzer.

8. The navigation device according to claim 1 , wherein said navigation device further includes a condition information acquiring unit that acquires at least one condition from among current date and time information, weather information, a usage pattern of said moving object, and a user attribute, and a condition specifier that allows said user to specify at least one condition from among the date and time information, the weather information, the usage pattern of the moving object, the user attribute, and a type of said evaluation information, and wherein said evaluation information with position generator adds said condition acquired by said condition information acquiring unit to generate said evaluation information with position, and said map display unit displays map data to which only evaluation information with position in which the condition specified by said condition specifier matches the condition added to said evaluation information with position is added on said display screen.

9. The navigation device according to claim 1 , wherein said navigation device further includes a moving speed acquiring unit that acquires a speed of said moving object, and wherein said map display unit displays map data to which said evaluation information with position is not added when the speed of the moving object acquired by said moving speed acquiring unit is higher than a predetermined value.

10. The navigation device according to claim 1 , wherein said navigation device further includes a moving speed acquiring unit that acquires a speed of said moving object, and wherein said map display unit adds said evaluation information with position by using a presenting method of making said evaluation information with position inconspicuous and displays map data when the speed of the moving object acquired by said moving speed acquiring unit is higher than a predetermined value.

11. The navigation device according to claim 1 , wherein said moving object is a vehicle and said navigation device further includes a vehicle travelling state determinator that determines a travel

Assignees

• Takei Takumi
• Furumoto Yuki
• Mitsubishi Electric Corp

Inventors

• Takei Takumi
• Furumoto Yuki

Classifications

• G09B29/007

  using computer methods · CPC title

• G10L2015/088

  Word spotting · CPC title

• G01C21/3641

  Personalized guidance, e.g. limited guidance on previously travelled routes · CPC title

• G01C21/3697

  Output of additional, non-guidance related information, e.g. low fuel level (G01C21/3679 takes precedence) · CPC title

• G10L15/05

  Word boundary detection · CPC title