(19)
(11)EP 2 076 052 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
29.07.2009 Bulletin 2009/31

(43)Date of publication A2:
01.07.2009 Bulletin 2009/27

(21)Application number: 08254028.7

(22)Date of filing:  17.12.2008
(51)Int. Cl.: 
H04N 7/52  (2006.01)
(84)Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30)Priority: 28.12.2007 US 6083

(71)Applicant: Intel Corporation
Santa Clara, CA 95052 (US)

(72)Inventors:
  • Thornburg, Christopher A.
    Chandler, AZ 85225 (US)
  • Peddie, Pranahitha
    Gilbert, AZ 85296 (US)

(74)Representative: Want, Clifford James 
Harrison Goddard Foote 40- 43 Chancery Lane
London WC2A 1JA
London WC2A 1JA (GB)

  


(54)Synchronizing audio and video frames


(57) Synchronization problems between audio and video information may be reduced by determining whether a certain predetermined time has elapsed since the previous frame of video has been displayed. Thus, for example, where the audio presentation time stamp and video presentation time stamp are offset so that audio information may be presented before video information, the next video frame in the queue may be displayed immediately after the passage of a predetermined time. Then, audio/video synchronization may be achieved after passage of an amount of time determined by the setting of the predetermined elapsed time between frames. The longer the predetermined time between frames, the more slowly the video frames are displayed, but the faster audio and video synchronization is achieved.