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:
Mar. 21, 2006
Filed:
Jun. 15, 1999
Applicant:
Michael P. Hollier, Ipswich, GB;
Inventor:
Michael P. Hollier, Ipswich, GB;
Assignee:
British Telecommunications public limited company, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The subjective quality of an audio-visual stimulus is measured by measuring the actual synchronisation errors between the audio and visual elements of the stimulus, identifying characteristics of audio and visual cues in the stimulus, and generating a measure of subjective quality from said errors and characteristics. The nature of the cue has an effect on the perceptual significance of a given value of synchronisation error, and this can be used to relax tolerances to such errors when appropriate, or to provide an accurate measure of the quality of the signal as it would be perceived by a human subject.