TECHNIQUES FOR SYNCHRONIZING AUDIO AND VIDEO DATA IN AN IMAGE SIGNAL PROCESSING SYSTEM

  • US 20120081567A1
  • Filed: 09/30/2010
  • Published: 04/05/2012
  • Est. Priority Date: 09/30/2010
  • Status: Active Grant
First Claim
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1. A method for synchronizing audio and video data on an electronic device comprising:

  • using an image signal processor to receive an image frame of the video data, the image frame being acquired using a digital image sensor of an electronic device;

    detecting the start of the image frame;

    upon detecting the start of the image frame, reading a current timestamp value from a time code register configured to provide timestamp values corresponding to a current time;

    associating the timestamp value with a set of metadata associated with the image frame; and

    using the timestamp value associated with the set of metadata to synchronize the playback of the image frame with a corresponding audio sample from a set audio data acquired concurrently with the video data on the electronic device.

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