Calibration device, method and program for achieving synchronization between audio and video data when using short range wireless audio devices

An electronic apparatus for achieving synchronization between video data displayed on a video sink device and audio data executed on one or more short range wireless devices, the electronic apparatus comprising:

• an input circuit that receives audio/video (A/V) content from an A/V content provider;
• an A/V decoder that decodes the A/V content to obtain video data and audio data;
• an output circuit that outputs the video and audio data to the video sink device;
• a wireless transceiver that wirelessly communicates information with the one or more short range wireless devices according to a wireless protocol, the information including the audio data;
• and
• a controller configured to:
• obtain calibration information for the one or more short range wireless devices, the calibration information being associated with delays relating to the wireless transceiver transmitting the audio data to the one or more short range wireless devices using the wireless protocol and the one or more short range wireless devices processing the audio data,
• determine a first delay for outputting the video and audio data to the video sink device using the calibration information, the first delay representing a time difference between the video sink device displaying video data and the one or more short range wireless devices outputting audio data corresponding to the video data,
• control the wireless transceiver to output the audio data to the one or more short range wireless devices, and
• control the output circuit to apply the first delay so as to output the video and audio data to the video sink device after the first delay, such that the video data displayed by the video sink device is synchronized with the audio data output by the one or more short range wireless devices.

A method implemented on an electronic apparatus for achieving

• synchronization between video data displayed on a video sink device and audio data executed on one or more short range wireless devices, the method comprising:
• receiving, using an input circuit, audio/video (A/V) content from an A/V content provider;
• decoding, using an A/V decoder, the A/V content to obtain video data and audio data;
• outputting, using an output circuit, the video and audio data to the video sink device;
• wirelessly communicating, using a wireless transceiver, information with the one or more
• short range wireless devices according to a wireless protocol, the information including the audio data;
• and
• using a controller to perform operations including:
• obtaining calibration information for the one or more short range wireless devices, the calibration information being associated with delays relating to the wireless transceiver transmitting the audio data to the one or more short range wireless devices using the wireless protocol and the one or more short range wireless devices processing the audio data,
• determining a first delay for outputting the video and audio data to the video sink device using the calibration information, the first delay representing a time difference between the video sink device displaying video data and the one or more short range wireless devices outputting audio data corresponding to the video data,
• controlling the wireless transceiver to output the audio data to the one or more short range wireless devices, and
• controlling the output circuit to apply the first delay so as to output the video and audio data to the video sink device after the first delay, such that the video data displayed by the video sink device is synchronized with the audio data output by the one or more short range wireless devices.

A non-transitory computer readable storage medium having stored thereon a program implemented on an electronic apparatus for achieving synchronization between video data displayed on a video sink device and audio data executed on one or more short range wireless devices, the program when executed by a processor causing the electronic apparatus to perform steps comprising:

• receiving, using an input circuit, audio/video (A/V) content from an A/V content provider;
• decoding, using an A/V decoder, the A/V content to obtain video data and audio data;
• outputting, using an output circuit, the video and audio data to the video sink device;
• wirelessly communicating, using a wireless transceiver, information with the one or more short range wireless devices according to a wireless protocol, the information including the audio data;
• and
• using a controller to perform operations including:
• obtaining calibration information for the one or more short range wireless devices, the calibration information being associated with delays relating to the wireless transceiver transmitting the audio data to the one or more short range wireless devices using the wireless protocol and the one or more short range wireless devices processing the audio data,
• determining a first delay for outputting the video and audio data to the video sink device using the calibration information, the first delay representing a time difference between the video sink device displaying video data and the one or more short range wireless devices outputting audio data corresponding to the video data,
• controlling the wireless transceiver to output the audio data to the one or more short range wireless devices, and
• controlling the output circuit to apply the first delay so as to output the video and audio data to the video sink device after the first delay, such that the video data displayed by the video sink device is synchronized with the audio data output by the one or more short range wireless devices.