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:
Jul. 20, 1999
Filed:
Aug. 09, 1996
Ulrich Hafele, Oberderdingen, DE;
Michael Vogele, Kampfelbach, DE;
Jean-Pierre Heinrichs, Bretten, DE;
Richard Wolf GmbH, Knittlingen, DE;
Abstract
The invention relates to a device for correcting the tone of color pictures recorded by a video camera, in particular an endoscope camera. A control device, which may also be part of a digital video camera, comprises a memory for storing a table which indicates a characteristic adjusting curve for tone correction values. The control device may further comprise an interface for inputting one or more characteristic adjusting curves according to the field of application of the device according to the invention. A simple rotary transducer which is connected via a lead to a control device serves as the input medium for the tone correction. After activating an automatic white balancing by way of a key connected to the control device, the correction values lies at the white point. The white point is always located on the adjusting curve and serves as a starting point. On operation of the rotary transducer, the tone correction is activated, and the control device reads out the value of the characteristic adjusting curve corresponding to the position of the rotary transducer from the look-up table stored in the memory. The point located on the adjusting curve after carrying out the correction remains also after switching off the control device an is only set to zero on renewed white balancing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile