Map drawing apparatus

• US 20030063083A1
• Filed: 09/26/2002
• Published: 04/03/2003
• Est. Priority Date: 09/28/2001
• Status: Active Grant

• Current Assignee: Pioneer Corporation, Pioneer Design Corporation (Pioneer Corporation)
• Original Assignee: Pioneer Corporation
• Inventors: Ibe, Yoshihito, Nishida, Sosuke, Myochin, Kiyonori
• Granted Patent: US 7,098,906 B2
• Time in Patent Office: Days
• US Class Current: 345/418
• CPC Class Codes: G01C 21/36 Input/output arrangements for on-board computers

Abstract

A map drawing apparatus has a map information reading section, a level extracting section, and a map information processing section. The map information reading section reads map information. The level extracting section extracts a level of a spectrum over a predetermined frequency range from a signal of input sound. The map information processing section processes the form (height, color, shape) of an object (a building, a cloud in the background, or the like) contained in the map information read by the map information reading section, into map information dynamically changed in cooperation with the spectrum extracted by the level extracting section. The map information processing section converts the processed map information into an image signal that can be displayed on a display device.

Claims

1. A map drawing apparatus comprising:

a map information reading section which reads map information;

a level extracting section which extracts a level of a spectrum over a predetermined frequency range from a signal of input sound;

a map information processing section which processes a form of an object contained in the map information read by the map information reading section into map information dynamically changed in cooperation with the spectrum level extracted by the level extracting section and the map information processing section which converts the processed map information into an image signal, which can be displayed on a display device.

2. The map drawing apparatus according to claim 1, wherein the map information processing section allocates divisions of the map information to spectra of left and right channels of the input sound.

3. The map drawing apparatus according to claim 2,

wherein the divisions of the map information are two display regions, which are separated across a road on which an own vehicle is travelling;

wherein the left channel of the input sound is allocated to one of the display regions; and

wherein the right channel of the input sound is allocated to the other of the display regions.

4. The map drawing apparatus according to claim 2,

wherein the divisions of the map information are display regions obtained by dividing a display screen of the display device;

wherein the display regions display a plurality of map information;

wherein the left channel of the input sound is allocated to one-of the display regions; and

wherein the right channel of the input sound is allocated to the other of the display regions.

5. The map drawing apparatus according to claim 1, wherein the map information processing section allocates divisions of the map information to spectra of high-frequency range and low-frequency range of the input sound.

6. The map drawing apparatus according to claim 5,

wherein the divisions of the map information are a region displaying a side close to a road on which an own vehicle is travelling and a region displaying a side remote from the road;

wherein the high-frequency range of the input sound is allocated to one of the display regions; and

wherein the low-frequency range of the input sound is allocated to the other of the display regions.

7. The map drawing apparatus according to claim 5,

wherein the divisions of the map information are a region displaying a distant view of a displayed map and a region displaying a close view of the map;

wherein the high-frequency range of the input sound is allocated to one of the display regions; and

wherein the low-frequency range of the input sound is allocated to the-other of the display regions.

8. The map drawing apparatus according to claim 1, wherein the object is displayed in a form of a wire frame image.

9. The map drawing apparatus according to claim 1, wherein a graphic equalizer is superimposedly displayed in a vacant display region of a background.