Method of transmitting/playing multimedia data over wireless network and wireless device using the method

A wireless device comprising:

• a device information storage unit which provides information regarding an available capability of the wireless device, the information regarding available capability of the wireless device includes information indicating whether the wireless device can process a video stream or an audio stream;
• a wireless transmission and reception unit which receives one of a video stream and an audio stream from a source device among the devices based on the information indicating whether a video stream or an audio stream can be processed;
• a time information reading unit which reads time information included in the video stream or the audio stream;
• and
• a media play unit which plays video or audio included in the video stream or the audio stream at a time indicated by the time information,
• wherein the information regarding the available capability of the wireless device is transmitted, when the wireless device associates with the wireless network.

A wireless device comprising:

• a device information collection unit which collects information regarding available capabilities of devices included in a wireless network, the information regarding available capabilities of devices includes information indicating whether the devices can process a video stream or an audio stream;
• a wireless transmission and reception unit which receives an audio and video (AV) stream, into which a video stream and an audio stream are multiplexed, from a source device among the devices based on the information indicating whether the device can process a video stream or an audio stream;
• a media play unit which demultiplexes the AV stream into the video stream and the audio stream, and plays each of the video and audio streams;
• a video output unit which outputs the video stream which is played to a user;
• and
• an audio retransmission unit which retransmits the audio stream which is played through a cable,
• wherein the information regarding the available capabilities of the devices is transmitted, when each of the devices associates with the wireless network.

A method of transmitting multimedia data, the method comprising:

• receiving and reading information regarding available capabilities of devices included in a wireless, the information regarding available capabilities of devices includes information indicating whether the devices can process a video stream or an audio stream;
• selecting a first device and a second device from the devices based on the information indicating whether the devices can process a video stream or an audio stream;
• generating a video stream and an audio stream which form the same content;
• and
• transmitting the video stream to the first device and transmitting the audio stream to the second device,
• wherein the information regarding the available capabilities of the devices is transmitted, when each of the devices associates with the wireless network.

A method of playing multimedia data, the method comprising:

• providing information regarding an available capability of a wireless device, the information regarding available capabilities of the wireless device includes information indicating whether the wireless device can process a video stream or an audio stream;
• receiving one of a video stream and an audio stream from a source device among the devices based on the information indicating whether a video stream or an audio stream can be processed;
• reading time information included in the video stream or the audio stream;
• and
• playing video or audio included in the video stream or the audio stream at a time indicated by the time information
• wherein the information regarding the available capabilities of the wireless device is transmitted, when the wireless device associates with the wireless network.

A method of playing multimedia data, the method comprising:

• collecting information regarding available capabilities of devices included in a wireless network, the information regarding available capabilities of devices includes information indicating whether the devices can process a video stream or an audio stream;
• receiving an audio and video (AV) stream, into which a video stream and an audio stream are multiplexed, from a source device among the devices based on the information indicating whether a video stream or an audio stream can be processed;
• demultiplexing the AV stream into the video stream and the audio stream, and playing each of the video and audio streams;
• outputting the video stream which is played to a user;
• and
• retransmitting the audio stream which is played through a cable,
• wherein the information regarding the available capabilities of the devices is transmitted, when each of the devices associates with the wireless network.

A wireless device comprising:

• a device information reading unit which receives and reads information regarding available capabilities of devices connected to a network, the information regarding available capabilities of devices includes information indicating whether the devices can process a video stream or an audio stream;
• a control unit which selects at least one sink device from the devices based on the information indicating whether the devices can process a video stream or an audio stream;
• and
• a transmission and reception unit which transmits a video stream or an audio stream to the at least one sink device,
• wherein the information regarding the available capabilities of the devices is transmitted, when each of the devices associates with the wireless network.

A method of transmitting multimedia data, the method comprising:

• receiving and reading information regarding available capabilities of devices connected to a network, the information regarding available capabilities of devices includes information indicating whether the devices can process a video stream or an audio stream;
• selecting at least one sink devices from the devices based on the information indicating whether the devices can process a video stream or an audio stream;
• and
• transmitting a video stream or an audio stream to the at least one sink devices,
• wherein the information regarding the available capabilities of the devices is transmitted, when each of the devices associates with the wireless network.

A computer readable recording medium storing a computer program for performing a method of transmitting multimedia data, the method comprising:

• receiving and reading information regarding available capabilities of devices included in a wireless network, the information regarding available capabilities of devices includes information indicating whether the devices can process a video stream or an audio stream;
• selecting a first device and a second device from the devices based on the information indicating whether the devices can process a video stream or an audio stream;
• generating a video stream and an audio stream which form the same content;
• and
• transmitting the video stream to the first device and transmitting the audio stream to the second device,
• wherein the information regarding the available capabilities of the devices is transmitted, when each of the devices associates with the wireless network.

A computer readable recording medium storing a computer program for performing a method of playing multimedia data, the method comprising:

• providing information regarding an available capability of a wireless device, the information regarding available capability of the wireless device includes information indicating whether the wireless device can process a video stream or an audio stream;
• receiving one of a video stream and an audio stream from a source device among the devices based on the information indicating whether a video stream or an audio stream can be processed;
• reading time information included in the video stream or the audio stream;
• and
• playing video or audio included in the video stream or the audio stream at a time indicated by the time information,
• wherein the information regarding the available capability of the wireless device is transmitted, when the wireless device associates with the wireless network.

A computer readable recording medium storing a computer program for performing a method of playing multimedia data, the method comprising:

• collecting information regarding available capabilities of devices included in a wireless network, the information regarding available capability of the wireless device includes information indicating whether the wireless device can process a video stream or an audio stream;
• receiving an audio and video (AV) stream, into which a video stream and an audio stream are multiplexed, from a source device among the devices based on the information indicating whether a video stream or an audio stream can be processed;
• demultiplexing the AV stream into the video stream and the audio stream, and playing each of the video and audio streams;
• outputting the video stream which is played to a user;
• and
• retransmitting the audio stream which is played through a cable,
• wherein the information regarding the available capability of the wireless device is transmitted when the wireless device associates with the wireless network.

A computer readable recording medium storing a computer program for performing a method of transmitting multimedia data, the method comprising:

• receiving and reading information regarding available capabilities of devices connected to a network, the information regarding available capabilities of devices includes information indicating whether the devices can process a video stream or an audio stream;
• selecting at least one sink devices from the devices based on the information indicating whether a video stream or an audio stream can be processed;
• and
• transmitting a video stream or an audio stream to the at least one sink devices,
• wherein the information regarding the available capabilities of the devices is transmitted, when each of the devices associates with the wireless network.