CAR NAVIGATION SYSTEM

• US 20090281727A1
• Filed: 05/06/2008
• Published: 11/12/2009
• Est. Priority Date: 05/06/2008
• Status: Abandoned Application

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: MIDO, Shigeaki, SHIGENAGA, Satoshi, NAGATANI, Yoshinori
• Application Number:
  US12/115,679
• Publication Number:
  US 20090281727A1
• Time in Patent Office: Days
• US Class Current: 701/210
• CPC Class Codes: G01C 21/3688 Systems comprising multiple parts or multiple output devices (not client-server), e.g. detachable faceplates, key fobs or multiple output screens

Abstract

A car navigation system capable of performing both real-time route guidance for a driver, and non-route-guidance display and operation of car navigation functions such as destination setting and vicinity searching for a non-driver, without necessitating a high-speed CPU or a high-performance drawing processing section. A display apparatus 200 is equipped with a CPU 210, an operating section 220, and drawing processing sections 230 and 240 corresponding to two display screens 250A and 250B, navigation-related processing is performed in a navigation apparatus 100, and drawing processing for the driver and drawing processing for a non-driver are executed independently by drawing processing sections 230 and 240 respectively of display apparatus 200. Functions are shared between navigation apparatus 100 and display apparatus 200.

Claims

1. A car navigation system comprising:

a display apparatus; and

a navigation apparatus having a control section that executes a processing program for implementing a navigation function, wherein;

said navigation apparatus has;

a route guidance information creation section that creates route guidance information using sensor information and a route information database; and

a first drawing processing section that performs drawing processing for navigation including a map based on created route guidance information, and

said display apparatus has;

an operating section that operates destination setting or searching;

a related information creation section that creates related information relating to route guidance based on an operation by means of said operating section and information from said navigation apparatus; and

a second drawing processing section that performs drawing processing that converts to graphic form related information including a menu screen based on created related information.

2. The car navigation system according to claim 1, wherein said route guidance information includes vehicle location information and vicinity map information.

3. The car navigation system according to claim 1, wherein said related information is at least one of intersection information necessary for route guidance, congestion information, road information, accident black-spot information, store/restaurant information, or parking lot information.

4. The car navigation system according to claim 1, wherein said display apparatus is composed of a plurality of display apparatuses for driver and non-driver use.

5. The car navigation system according to claim 4, wherein:

said display apparatus for driver use displays information created by said first drawing processing section; and

said display apparatus for non-driver use displays said related information created by said second drawing processing section.

6. The car navigation system according to claim 5, wherein said display apparatus comprises a display panel capable of display by switching between display that can be seen from one or other of a first or second direction and display that can be seen from both a first and second direction.

7. The car navigation system according to claim 6, wherein:

information created by said first drawing processing section is displayed as display information of said first direction; and

said related information created by said second drawing processing section is displayed as display information of said second direction.

8. The car navigation system according to claim 1, wherein said display apparatus further comprises a determining section that determines whether an operation by means of said operating section is performed by a driver or a non-driver.

9. The car navigation system according to claim 8, wherein retrieval or setting of said related information is permitted when said operation by means of said operating section is determined to be by a non-driver.