Wireless vehicle reversal monitoring device

• US 6,515,581 B1
• Filed: 08/10/2001
• Issued: 02/04/2003
• Est. Priority Date: 08/10/2001
• Status: Expired due to Fees

• Current Assignee: Photic Electronics Company Limited
• Original Assignee: Photic Electronics Company Limited
• Inventors: Ho, Chao-Ting
• Primary Examiner(s): POPE, DARYL C
• Application Number:
  US09/925,378
• Publication Number:
  US 20030030551A1
• Time in Patent Office: 543 Days
• Field of Search: 340/425.5, 340/426, 340/937, 340/932.2, 340/438, 340/461, 348/148, 348/36, 348/118, 348/113, 348/149, 348/151, 348/419, 348/207, 359/366
• US Class Current: 340/425.5
• CPC Class Codes: B60R 1/00 Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
• CPC Class Codes: B60R 1/26 to the rear of the vehicle
• CPC Class Codes: B60R 2300/30 characterised by the type of image processing
• CPC Class Codes: B60R 2300/406 using wireless transmission
• CPC Class Codes: B60R 2300/8066 for monitoring rearward traffic
• CPC Class Codes: H04N 7/183 for receiving images from a single remote source

Abstract

A wireless vehicle reversal monitoring device comprised of an image acquisition unit and an image control display processing system that eliminates the inconveniences and perplexities of wired installations. In addition, the present invention is theft-proof in that it is easily uninstalled, ensures increased safety during vehicle reversal, and is of greater product value.

Claims

1. A wireless vehicle reversal monitoring device comprised of an image acquisition unit and an image control display processing system installed in a vehicle, of which:

said image acquisition unit consists of an observation camera, a high frequency transmitter, and a controller;

said controller having control over switching on of said observation camera, control over switching on of said high frequency transmitter, and control over a channel selector of said high frequency transmitter;

said image control display processing system consists of a high frequency receiver for receiving radio frequency signals from said high frequency transmitter, a multi-scanning video frequency amplifier controller, and a display;

said multi-scanning video frequency amplifier controller having control over switching on of the said high frequency receiver and a channel selector of the said high frequency receiver, the said multi-scanning video frequency amplifier controller automatically adapting to different video transmission outputs of various video signal sources, enhancing input images, and eliminating interference artifacts to provide an optimal signal source for said display;

responsive to said vehicle being in a reverse gear and backing up, a vehicle power supply signal is input to said controller and said multi-scanning video frequency amplifier controller, following which power is switched on to said observation camera and said high frequency transmitter, said observation camera next providing video signals representing images that show a rear view of said vehicle and sends said video signals to said high frequency transmitter, and then said high frequency transmitter propagates said video signals wirelessly via said radio frequency signals;

said high frequency receiver detects said propagated video signals representing images of a rear of said vehicle and transfer said video signals to said multi-scanning video frequency amplifier controller for filtering out interference artifacts and amplifying said video signals, said amplified video signals being sent to said display.