The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 1993
Filed:
Jan. 30, 1992
Keiko Karasudani, Hyogo, JP;
Tatsuji Irie, Hyogo, JP;
Mitsubishi Denki K.K., Tokyo, JP;
Abstract
An inter-car distance detecting device of the invention includes an: image sensor for picking up the image of a car ahead through a pair of optical systems arranged substantially vertically; a display for displaying the image of the car ahead; a first window surrounding the image of the car ahead; an image tracker for tracking the image of the car ahead with the first window; a second window set in the first window; first and second distance detectors for calculating the distances from the objects held in the first and second windows, respectively; and a window position corrector for correcting the position of the first window according to the distances calculated by those distance detectors. The driver can thus readily detect the distance between his car and the car ahead. Even if the window is shifted from the image of the car ahead for instance when his car bounds, the image of the car ahead can be stably tracked. In addition, the position of the window can be corrected with high accuracy. That is, the image of the car ahead can be tracked with high stability.