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.

Date of Patent:
Jun. 08, 1982

Filed:

Jul. 11, 1980
Applicant:
Inventors:

Heiner Herbst, Munich, DE;

Hans-Joerg Pfleiderer, Zorneding, DE;

Hans-Peter Grassl, Munich, DE;

Assignee:

Siemens Aktiengesellschaft, Berlin & Munich, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C / ;
U.S. Cl.
CPC ...
250201 ; 2502 / ; 3072 / ; 354 25 ; 356-4 ; 357 24 ;
Abstract

A circuit for sensor-controlled distance measurement with two linear image sensors is disclosed. These sensors are exposed to lines corresponding to two images derived from one object. The sensor signals are subjected to correlation measurements, from which the range of the object is determined. An exposure-measuring circuit determines the optimum integration time of the sensor elements. In the case of such circuits, one sets as exact a distance measurement as possible. For this purpose, comparing sensor elements of the exposure-measuring circuit, which are provided with a mean value of the exposure of many sensor locations, are designed such that they extend only over a part of the sensor lines. They are arranged in a sequence which runs along the entire sensor line. A separate controlling of the optimum integration time proceeds over individual line portions. A range of application for the invention encompasses photographic and electronic cameras.


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