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:
Jun. 13, 2000
Filed:
Feb. 20, 1998
Bozidar Janko, Portland, OR (US);
Tektronix, Inc., Beaverton, OR (US);
Abstract
In a system for measuring the quality of a received video sequence with respect to an original video sequence a low duty-cycle transport of video reference images from the original video sequence is used to transmit full quality images. Such a reference frame from the original video sequence is selected and transmitted as a full quality video image, either separately or as part of the transmission of the original video sequence after processing. The processed original video sequence becomes a received video sequence at a receiver, and the frame corresponding to the reference frame is extracted and compared with the full quality received reference frame to obtain a measure of the quality of the received video sequence.