Movable body detecting/notifying system

• US 6,246,339 B1
• Filed: 06/04/1999
• Issued: 06/12/2001
• Est. Priority Date: 06/05/1998
• Status: Expired due to Fees

• Current Assignee: Honda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
• Original Assignee: Honda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
• Inventors: Yamazaki, Takeshi
• Primary Examiner(s): Hofsass, Jeffrey
• Assistant Examiner(s): NGUYEN, HUNG T
• Application Number:
  US09/325,543
• Time in Patent Office: 739 Days
• Field of Search: 340/933, 340/901, 340/903, 340/904, 340/435, 340/436, 340/902, 340/916
• US Class Current: 340/933
• CPC Class Codes: G08G 1/163 involving continuous checking

Abstract

To provide a movable body detecting/notifying system that is capable of determining and reporting whether another movable body exists behind an obstruction or at a position that can be verified by the sense of sight. A movable body detecting/notifying system allows a detecting movable body to detect and report a detected movable body by using electromagnetic wave communication. The detected movable body transmits a large-wavelength electromagnetic wave easily diffractable by an obstruction as well as a small-wavelength electromagnetic wave not easily diffractable by an obstruction at the same time. The detecting movable body generates a notice for reception of only the large-wavelength electromagnetic wave without the small-wavelength electromagnetic wave or a notice for reception of both the large-wavelength and small-wavelength electromagnetic waves different from the notice for reception of only the large-wavelength electromagnetic wave.

Claims

1. A movable body detecting/notifying system for allowing a detecting movable body to detect and report a detected movable body by using electromagnetic wave communication, comprising:

means mountable to the detected movable body for transmitting a large wavelength electromagnetic wave easily diffractable by an obstruction and a small-wavelength electromagnetic wave not easily diffractable by an obstruction at the same time; and

means mountable to the detecting movable body for generating a first notice for reception of only said large-wavelength electromagnetic wave without said small-wavelength electromagnetic wave or a second notice for reception of both said large-wavelength and said small-wavelength electromagnetic waves.

2. The movable body detecting/notifying system according to claim 1, wherein said first notice is different from said second notice.

3. The movable body detecting/notifying system according to claim 1, wherein an ID code for identifying the detected movable body is added to said small-wavelength electromagnetic wave generated by the detected movable body.