Wireless audio receiving device, wireless audio transmitting device, and wireless audio system including the same
A wireless audio receiving device, a wireless audio transmitting device, and a wireless audio output system including the same are disclosed. The wireless audio receiving device according to an embodiment of the present disclosure includes a transceiver to receive an audio signal from a wireless audio transmitting device through ultra-wideband communication; and a sound output device to output sound corresponding to the audio signal, wherein the transceiver receives an audio signal of a first channel, and, based on a relay mode, receives an audio signal of a second channel, and transmits the audio signal of the second channel or an audio signal processed based on the audio signal to a second wireless audio receiving device. Accordingly, it is possible to relay audio signals through ultra-wideband communication.
1 . A wireless audio receiving device comprising:
a transceiver configured to receive an audio signal from a wireless audio transmitting device through ultra-wideband communication; and
a sound output device configured to output sound corresponding to the audio signal from the transceiver,
wherein the transceiver receives an audio signal of a first channel from the wireless audio transmitting device, and, based on a relay mode, receives an audio signal of a second channel from the wireless audio transmitting device, and transmits the audio signal of the second channel or an audio signal processed based on the audio signal of the second channel to a second wireless audio receiving device, and
wherein, in a case of a first relay mode, the transceiver transmits the audio signal of the second channel intactly to the second wireless audio receiving device, based on data in a media access control layer, and in a case of a second relay mode, transmits an audio signal processed based on the audio signal of the second channel to the second wireless audio receiving device, based on data in an application layer.
2 . The wireless audio receiving device of claim 1 , wherein the transceiver transmits a first confirmation message to the wireless audio transmitting device, after receiving the audio signal of the first channel.
3 . The wireless audio receiving device of claim 1 , wherein, in a case of a first relay mode among the relay mode, the transceiver transmits the audio signal of the second channel intactly to the second wireless audio receiving device.
4 . The wireless audio receiving device of claim 1 , wherein, in a case of a second relay mode among the relay mode, the transceiver transmits an audio signal processed based on the audio signal of the second channel to the second wireless audio receiving device.
5 . The wireless audio receiving device of claim 1 , wherein, in a case of a second relay mode among the relay mode, the transceiver transmits a second confirmation message to the wireless audio transmitting device, after receiving the audio signal of the second channel, and transmits an audio signal processed based on the audio signal of the second channel to the second wireless audio receiving device, after transmitting the second confirmation message.
6 . The wireless audio receiving device of claim 1 , wherein, based on added relay mode information while receiving the audio signal of the second channel, the transceiver transmits the audio signal of the second channel intactly to the second wireless audio receiving device, or transmits an audio signal processed based on the audio signal of the second channel to the second wireless audio receiving device.
7 . The wireless audio receiving device of claim 1 , wherein, in a case of transmitting the audio signal of the second channel intactly to the second wireless audio receiving device, the transceiver transmits together with a reference signal including offset information spaced apart by a predetermined interval from a beacon signal.
8 . The wireless audio receiving device of claim 1 , wherein, in a case of transmitting an audio signal processed based on the audio signal of the second channel to the second wireless audio receiving device, the transceiver transmits together with a reference signal including offset information spaced apart by a predetermined interval from a beacon signal.
9 . A wireless audio transmitting device comprising a transceiver configured to transmit an audio signal to at least one wireless audio receiving device through ultra-wideband communication,
wherein the transceiver transmits an audio signal of a first channel to a first wireless audio receiving device, and transmits an audio signal of a second channel to a second wireless audio receiving device, and in case in which a confirmation message is not received from the second wireless audio receiving device within a predetermined time, enters a relay mode and transmits the audio signal of the second channel to the first wireless audio receiving device,
wherein the transceiver is configured to:
determine whether transmission of the audio signal of the second channel is necessary, after entering the relay mode,
in response to transmission of the audio signal of the second channel being necessary, based on a first relay mode among the relay mode, add first relay mode information to a media access control layer, and,
in response to transmission of the audio signal of the second channel not being necessary, based on a second relay mode among the relay mode, add second relay mode information in an application layer.
10 . The wireless audio transmitting device of claim 9 , wherein, in the relay mode, the transceiver sets a target address of the audio signal of the second channel to the first wireless audio receiving device or the first wireless audio receiving device.
11 . The wireless audio transmitting device of claim 9 , wherein, in a case of the first relay mode among the relay mode, the transceiver sets a target address of the audio signal of the second channel to the second wireless audio receiving device, and, in a case of the second relay mode among the relay mode, sets a target address of the audio signal of the second channel to the first wireless audio receiving device.
12 . The wireless audio transmitting device of claim 9 , wherein the transceiver receives a first confirmation message from the first wireless audio receiving device, after transmitting the audio signal of the first channel.
13 . The wireless audio transmitting device of claim 9 , wherein, in a case of a first relay mode among the relay mode, the transceiver does not receive a confirmation message within a predetermined time, after transmitting the audio signal of the second channel to the first wireless audio receiving device, and, in a case of a second relay mode among the relay mode, receives a second confirmation message, after transmitting the audio signal of the second channel to the first wireless audio receiving device.
14 . The wireless audio transmitting device of claim 9 , wherein the transceiver further transmits relay mode information, in a case of transmitting the audio signal of the second channel.
15 . A wireless audio output system comprising:
a wireless audio receiving device; and
a wireless audio transmitting device,
wherein the wireless audio receiving device comprises:
a transceiver configured to receive an audio signal from a wireless audio transmitting device through ultra-wideband communication; and
a sound output device configured to output sound corresponding to the audio signal from the transceiver,
wherein the transceiver receives an audio signal of a first channel from the wireless audio transmitting device, and, based on a relay mode, receives an audio signal of a second channel from the wireless audio transmitting device, and transmits the audio signal of the second channel or an audio signal processed based on the audio signal of the second channel to a second wireless audio receiving device, and
wherein, in a case of a first relay mode, the transceiver transmits the audio signal of the second channel intactly to the second wireless audio receiving device, based on data in a media access control layer, and in a case of a second relay mode, transmits an audio signal processed based on the audio signal of the second channel to the second wireless audio receiving device, based on data in an application layer.
16 . The wireless audio output system of claim 15 , wherein the wireless audio transmitting device comprises a second transceiver configured to transmit an audio signal to at least one wireless audio receiving device through ultra-wideband communication,
wherein the second transceiver transmits an audio signal of a first channel to a first wireless audio receiving device, and transmits an audio signal of a second channel to a second wireless audio receiving device, and in case in which a confirmation message is not received from the second wireless audio receiving device within a predetermined time, enters a relay mode and transmits the audio signal of the second channel to the first wireless audio receiving device.
17 . The wireless audio output system of claim 16 , wherein, in the relay mode, the second transceiver sets a target address of the audio signal of the second channel to the first wireless audio receiving device or the first wireless audio receiving device.
18 . The wireless audio output system of claim 16 , wherein, in a case of a first relay mode among the relay mode, the second transceiver sets a target address of the audio signal of the second channel to the second wireless audio receiving device, and, in a case of a second relay mode among the relay mode, sets a target address of the audio signal of the second channel to the first wireless audio receiving device.