Road map

• US 8,050,861 B2
• Filed: 12/20/2004
• Issued: 11/01/2011
• Est. Priority Date: 12/26/2003
• Status: Expired due to Fees

• Current Assignee: Kazuharu Seki
• Original Assignee: Kazuharu Seki
• Inventors: Seki, Kazuharu
• Primary Examiner(s): Tran; Khoi
• Assistant Examiner(s): PECHE, JORGE O
• Application Number:
  US11/017,293
• Publication Number:
  US 20050143910A1
• Time in Patent Office: 2,507 Days
• Field of Search: 701/208, 701/65, 701/201, 701/202, 701/209, 340/995.1, 340/990, 340/995.27, 283/34, 283/35, 434/150
• US Class Current: 701/208
• CPC Class Codes: G01C 21/3676 Overview of the route on the road map
• CPC Class Codes: G09B 29/00 Maps; Plans; Charts; Diagrams, e.g. route diagram star maps G09B27/04; devices for holding or supporting maps A47B97/02; for computing purposes G06G1/14, G09B1/16; display boards G09F

Abstract

A road map is provided which allows a determination to be intuitively rendered whether a course contains an increased number of upward slopes or downward slopes as viewed in the direction of the course. The direction of the course is set up across roads indicated on the map, and the upward slopes and the downward slopes located along the course are indicated in different colors. For example, the direction of the course is set up on the map by a starting point and destinations. A gentle upward slope is indicated by a red color of a low thickness, a medium upward slope is indicated by a red color of a medium thickness and a sharp upward slope is indicated by a red color of a high thickness. On the other hand, a gentle downward slope is indicated by a blue color of a low thickness, a medium downward slope is indicated by a blue color of a medium thickness and a sharp downward slope is indicated by a blue color of a high thickness. Accordingly, a determination as to whether the course contains an increased number of upward slopes or downward slopes can be intuitively made.

Claims

1. A road map in which a direction of travel along a predetermined course from one or more starting points to one or more destinations is specifically indicated and upward slopes along the direction of travel are indicated by a different color than downward slopes along the direction of travel,

wherein two or more colors are used for the each of the upward slopes and the downward slopes,

wherein a first color is used for a slope having a difference in elevation between two and six meters, a second color is used for a slope having a difference in elevation between six and ten meters and a third color is used for a slope having a difference in elevation exceeding ten meters, the elevation differences being per 100 meters.