# US 9,438,963 B2 · Wireless audio transmission method and device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,438,963 B2 - Document ID: US9438963B2 - Status: Granted - Kind: B2 - Application number: 11/581,425 - Filed: 2006-10-17 - Published: 2007-06-14 - Granted: 2016-09-06 - Earliest claimed: 2005-12-12 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Zhun-woo Kim; Seong-cheol Jang - Inventors: Zhun-woo Kim; Seong-cheol Jang - Web page: https://patentgrep.com/patent/US9438963B2 ## CPC - H04N 21/8106: {involving special audio data, e.g. different tracks for different languages} - H04N 21/2368: Multiplexing of audio and video streams - H04N 21/4131: {home appliance, e.g. lighting, air conditioning system, metering devices (home automation data switching networks exchanging configuration information on appliance services H04L12/2807)} - H04N 21/4341: {Demultiplexing of audio and video streams} - H04N 21/43637: {involving a wireless protocol, e.g. Bluetooth®, RF or wireless LAN [IEEE 802.11] (arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114)} - H04N 21/6162: {involving terrestrial transmission, e.g. DVB-T} - H04R 5/04: Circuit arrangements, {e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments (combinations of amplifiers H03F3/68; stereophonic systems H04S)} - H04R 3/12: for distributing signals to two or more loudspeakers {(specially adapted for hearing aids H04R25/407)} - H04R 2420/07: Applications of wireless loudspeakers or wireless microphones - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) ## Abstract A wireless audio transmission method and a device. The wireless audio transmission device includes: an audio processor that receives a digital audio signal from an external multimedia apparatus when the wireless audio transmission device is docked at the external multimedia apparatus, performing a predetermined signal processing operation of adding a sound effect to the received digital audio signal, and generating a composite signal; a wireless transmission processor to receive the composite signal generated by the audio processor and to convert the received composite signal into a wireless packet; and a wireless transmitter to modulate the wireless packet into an RF signal and to transmit the RF signal. ## Claims ### Claim 1 A wireless audio transmission device comprising: a processor to receive a digital audio signal from an external multimedia apparatus when the wireless audio transmission device is connected to the external multimedia apparatus, to perform a predetermined signal processing operation of adding a sound effect to the received digital audio signal, and to generate a composite signal, wherein the processor comprises a channel selector to select one of a plurality of channels when the external multimedia apparatus outputs digital audio signals of a plurality of broadcasting services through the plurality of channels and to receive the digital audio signal output through the selected channel, and wherein the plurality of channels correspond to different broadcasting services. ### Claim 2 (depends on 1) The device of claim 1, wherein the processor comprises: a connector including a connection element to be docked into the external multimedia apparatus and to receive the digital audio signal from the external multimedia apparatus when the connection element is docked; and a composite signal generator to perform the predetermined signal processing operation on the digital audio signal received by the connector and to generate the composite signal. ### Claim 3 (depends on 2) The device of claim 2, wherein the connector comprises an SPDIF terminal and receives the digital audio signal through the SPDIF terminal. ### Claim 4 (depends on 1) The device of claim 1, wherein the processor comprises a wired transmitter to have a structure connectable to an external output device and to transmit the composite signal generated by the processor when the processor is connected to the external output device through a wire. ### Claim 5 (depends on 1) The device of claim 1, wherein the predetermined signal processing operation is a signal processing operation for headphone virtualization. ### Claim 6 (depends on 1) The device of claim 1, wherein the predetermined signal processing operation is a signal processing operation for a 3D sound. ### Claim 7 (depends on 1) The device of claim 1, wherein the wireless audio transmission device further comprises: a wireless transmission processor to receive the composite signal generated by the processor and to convert the received composite signal into a wireless packet, wherein the wireless transmission processor receives the composite signal generated by the processor and converts the received composite signal into a Bluetooth packet by use of a Bluetooth protocol. ### Claim 8 (depends on 7) The device of claim 7, wherein the wireless transmission processor receives the composite signal generated by the processor and converts the received composite signal into a WiFi packet by use of a WiFi protocol. ### Claim 9 (depends on 7) The device of claim 7, wherein the wireless transmission processor comprises: an RF signal generator to convert the wireless packet generated by the wireless transmission processor into an analogue signal and to modulate the converted analogue signal into an RF signal; and an antenna to output the RF signal wirelessly. ### Claim 10 A wireless audio transmission method comprising: receiving a digital audio signal from an external multimedia apparatus connected in a docking manner; and performing a predetermined signal processing operation of adding a sound effect to the received digital audio signal and generating a composite signal; wherein the receiving of the digital audio signal comprises selecting one of a plurality of channels when the external multimedia apparatus outputs digital audio signals of a plurality of broadcasting services through the plurality of channels and receiving the digital audio signal output through the selected channel, and wherein the plurality of channels correspond to different broadcasting services from each other. ### Claim 11 (depends on 10) The method of claim 10, wherein the receiving of a digital audio signal comprises receiving the digital audio signal by use of an SPDIF terminal. ### Claim 12 (depends on 10) The method of claim 10, wherein the receiving of a digital audio signal comprises selecting one of a plurality of channels when the external multimedia apparatus outputs digital audio signals of a plurality of broadcasting services through the plurality of channels and receiving only the digital audio signal output through the selected channel. ### Claim 13 (depends on 10) The method of claim 10, wherein the performing of the predetermined signal processing operation is a signal processing operation for headphone virtualization. ### Claim 14 (depends on 10) The method of claim 10, wherein the performing of the predetermined signal processing operation is a signal processing operation of generating a 3D sound. ### Claim 15 (depends on 10) The method of claim 10, the method further comprising: converting the composite signal into a wireless packet, wherein the converting of the composite signal into a wireless packet comprises receiving the composite signal and converting the received composite signal into a Bluetooth packet by use of a Bluetooth protocol. ### Claim 16 (depends on 15) The method of claim 15, wherein the converting of the composite signal into a wireless packet comprises receiving the composite signal and converting the received composite signal into a WiFi packet by use of a WiFi protocol. ### Claim 17 (depends on 10) The method of claim 10, the method further comprising: modulating the wireless packet into an RF signal and transmitting the RF signal; wherein the modulating of the wireless packet into an RF signal and transmitting the RF signal comprises: converting the wireless packet into an analogue signal; modulating the converted analogue signal into an RF signal; and outputting the RF signal through an antenna wirelessly. ### Claim 18 A wireless audio transmission device comprising: a processor to receive a digital audio signal from an external multimedia apparatus when connected thereto, to add a predetermined sound effect to the received digital audio signal based on a predetermined type of sound to be realized by performing signal processing of the received digital audio signal, and to generate a composite signal; and wherein the processor comprises a channel selector to select one of a plurality of channels and to receive the audio signal through the selected channel when the external multimedia apparatus outputs a plurality of audio signals of a plurality of broadcasting services through the plurality of channels, and wherein the plurality of channels correspond to different broadcasting services from each other. ### Claim 19 (depends on 18) The device of claim 18, wherein the processor is connectable to the external multimedia apparatus by a docking operation. ### Claim 20 (depends on 18) The device of claim 18, wherein the predetermined sound effect added to the digital audio signal is one which realizes a headphone virtualization. ### Claim 21 (depends on 18) The device of claim 18, wherein the predetermined sound effect added to the digital audio signal is one which realizes a 3D sound. ### Claim 22 (depends on 18) The device of claim 18, wherein the predetermined sound effect added to the digital audio signal is one which realizes an effect predefined by a user. ### Claim 23 (depends on 18) The device of claim 18, wherein the processor further comprises: a wireless transmission processor to convert the composite signal into a wireless packet to be wirelessly transmitted; and a connector to receive the digital audio signal and channel information of the external multimedia apparatus together with audio control information. ### Claim 24 A wireless audio transmission method comprising: receiving a digital audio signal from an external multimedia apparatus docked thereto; and adding a sound effect to the received digital audio signal by performing signal processing of the received digital audio signal and generating a composite signal; and wherein the receiving of the digital audio signal comprises selecting one of a plurality of channels when the external multimedia apparatus outputs digital audio signals of a plurality of broadcasting services through the plurality of channels and receiving the digital audio signal output through the selected channel, and wherein the plurality of channels correspond to different broadcasting services from each other. ### Claim 25 (depends on 24) The method of claim 24, wherein the composite signal is generated for a headphone virtualization. ### Claim 26 (depends on 24) The method of claim 24, wherein the composite signal is generated for a 3D sound. ### Claim 27 (depends on 24) The method of claim 24, wherein the converting of the composite signal comprises converting the composite signal into a Bluetooth packet by using a Bluetooth protocol. ### Claim 28 (depends on 24) The method of claim 24, further comprising wirelessly transmitting the wireless packet. ### Claim 29 A non-transitory readable/recordable medium containing computer-readable instructions that, when executed by the computer, perform a method of wireless audio transmission, the method comprising: receiving a digital audio signal at a personal audio system from an external multimedia apparatus connected in a docking manner; performing a predetermined signal processing operation of adding a sound effect to the received digital audio signal and generating a composite signal; wherein the receiving of the digital audio signal comprises selecting one of a plurality of channels when the external multimedia apparatus outputs digital audio signals of a plurality of broadcasting services through the plurality of channels and receiving the digital audio signal output through the selected channel, and wherein the plurality of channels correspond to different broadcasting services from each other. ### Claim 30 A non-transitory readable/recordable medium containing computer-readable instructions that, when executed by the computer, perform a method of wireless audio transmission, the method comprising: receiving a digital audio signal from an external multimedia apparatus docked thereto; adding a sound effect to the received digital audio signal by performing signal processing of the received digital audio signal and generating a composite signal; and wherein the receiving of the digital audio signal comprises selecting one of a plurality of channels when the external multimedia apparatus outputs digital audio signals of a plurality of broadcasting services through the plurality of channels and receiving the digital audio signal output through the selected channel, and wherein the plurality of channels correspond to different broadcasting services from each other.