# US 2019/0356993 A1 · Audio streaming system comprising an audio streamer and at least one ear worn device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0356993 A1 - Document ID: US20190356993A1 - Status: Published application - Kind: A1 - Application number: 16/410,019 - Filed: 2019-05-13 - Published: 2019-11-21 - Earliest claimed: 2018-05-16 - Assignees: Widex A/S - Applicants: Widex A/S - Inventors: Morten SCHMIDT; Claus Svane BJERREGAARD; Thomas Lindhardt IVERSEN - Web page: https://patentgrep.com/patent/US20190356993A1 ## CPC - H04R 25/554: {using a wireless connection, e.g. between microphone and amplifier or using Tcoils} - H04B 1/713: using frequency hopping - H04B 7/10: Polarisation diversity; Directional diversity - H04R 25/43: {Electronic input selection or mixing based on input signal analysis, e.g. mixing or selection between microphone and telecoil or between microphones with different directivity characteristics (H04R25/407 takes precedence)} - H04B 7/0667: {of delayed versions of same signal (using space-time coding H04L1/0618)} - H04B 2201/71346: Bluetooth® - H04N 5/64: Constructional details of receivers, e.g. cabinets or dust covers (furniture aspects {of television cabinets} A47B81/06) - H04R 25/552: {Binaural} - H04R 2225/51: Aspects of antennas or their circuitry in or for hearing aids - H04R 2225/55: Communication between hearing aids and external devices via a network for data exchange - 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) - H04B: TRANSMISSION - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract An audio streaming system including an audio streamer connected to an audio source, and at least one ear worn device. The audio streamer includes a first antenna with a first polarization, a second antenna with a second polarization, and a radio configured for transmitting a first audio stream signal (30) from the first antenna and a second audio stream signal (31) from the second antenna. The first audio stream signal (30) and the second audio stream signal (31) carry the same audio information and are shifted in time. At least one ear worn device is configured to receive the first audio stream signal (30) and the second audio stream signal (31), compare the signal strength of the first audio stream signal (30) and the second audio stream signal (31), and select either the first audio stream signal (30) and the second audio stream signal (31) as input for audio reception. ## Claims ### Claim 1 A streamer for streaming audio from an audio source and comprising a first antenna (26) with a first polarization, a second antenna (27) with a second polarization, and a transmitter (25), wherein the transmitter (25) is adapted for transmitting a first audio stream signal (30) as an isochronous signal on the first antenna (26) and a second audio stream signal (31) as an isochronous signal on the second antenna (27), wherein the first audio stream signal (30) and the second audio stream signal (31) carry the same audio information and are shifted in time. ### Claim 2 An audio streaming system comprising an audio streamer connected to an audio source, and at least one ear worn device (50), wherein the audio streamer comprises a first antenna (26) with a first polarization, a second antenna (27) with a second polarization, and a radio configured for transmitting a first audio stream signal (30) from the first antenna (26) and a second audio stream signal (31) from the second antenna (27), wherein the first audio stream signal (30) and the second audio stream signal (31) carry the same audio information in first and second time windows, respectively, wherein the at least one ear worn device (50) comprising: a radio (63) adapted for receiving the first audio stream signal and the second audio stream signal, a processor (61) being configured for: comparing the first audio stream signal (30) to a predefined criterion, and when the predefined criterion is fulfilled, choosing the first audio stream signal (30) as input for audio reception with the radio disabled in the second time window; or when the predefined criterion is not fulfilled, choosing the second audio stream signal (31) as input for audio reception. ### Claim 3 (depends on 2) The audio streaming system according to claim 2 wherein the at least one ear worn device (50) comprises a hearing aid. ### Claim 4 (depends on 2) The audio streaming system according to claim 2 wherein the first audio stream signal (30) and the second audio stream signal (31) are isochronous signals. ### Claim 5 (depends on 4) The audio streaming system according to claim 4, wherein the isochronous signals are associated with a time unit interval, and wherein any significant instants by the isochronous signals are separated in time by the time unit interval a multiple thereof. ### Claim 6 (depends on 2) The audio streaming system according to claim 2, wherein the audio streamer is configured to advertise a signaling scheme comprising timing and frequency hopping plans for the first audio stream signal (30) and the second audio stream signal (31). ### Claim 7 (depends on 6) The audio streaming system according to claim 6, wherein the audio streamer is configured to periodically update the advertised signaling scheme. ### Claim 8 (depends on 2) The audio streaming system according to claim 2, wherein the at least one ear worn device (50) is configured to measure signal strength indicators for the first audio stream signal (30) and the second audio stream signal (31), and to select either the first audio stream signal (30) and the second audio stream signal (31) providing the best signal strength indicator result. ### Claim 9 (depends on 8) The audio streaming system according to claim 8, wherein the at least one ear worn device (50) is configured to periodically measure the signal strength indicators. ### Claim 10 (depends on 9) The audio streaming system according to claim 9, wherein the selection of either the first audio stream signal (30) and the second audio stream signal (31) providing the best signal strength indicator result is valid for a plurality of audio packets. ### Claim 11 A method of receiving, in an ear worn device, an audio stream from an audio streamer transmitting a first audio stream signal from first antenna with a first polarization, a second audio stream signal from a second antenna with a second polarization, wherein the method comprises: receiving the first audio stream signal and the second audio stream signal, comparing the signal strength of the first audio stream signal to a predefined criterion, and choosing the first audio stream signal (30) as input for audio reception with the radio disabled in the second time window when the predefined criterion is fulfilled; or choosing the second audio stream signal (31) as input for audio reception when the predefined criterion is not fulfilled. ### Claim 12 An ear worn device for receiving an audio stream from an audio streamer transmitting a first audio stream signal (30) having a first polarization and a second audio stream signal (31) having a second polarization, and comprising: a radio (63) for receiving the first audio stream signal and the second audio stream signal, a processor (61) being configured for: comparing the signal strength of the first audio stream signal (30) and the second audio stream signal (31), and choosing the first audio stream signal (30) as input for audio reception with the radio disabled in the second time window when the predefined criterion is fulfilled; or choosing the second audio stream signal (31) as input for audio reception when the predefined criterion is not fulfilled. ### Claim 13 A streamer for streaming audio from an audio source and comprising a housing (10) and a mounting bracket (13) for mounting on a TV, the housing (10) having a first side with a first antenna (26) with a first polarization, and a second side with second antenna (27) with a second polarization, the housing (10) is provided a set of pins (12) along the first side and the second side, wherein the set of pins (12) are adapted to be slidably received along a pair of parallel rails (15) on the mounting bracket (13), and wherein the set of pins (12) are adapted to be releasably maintained by snap locking in an end position along the parallel rails (15) on the mounting bracket (13). ### Claim 14 (depends on 13) The streamer according to claim 13, wherein the housing (10) having a third side carrying an array of sockets (21) for audio cables (11) from the TV. ### Claim 15 (depends on 14) The streamer according to claim 14, wherein the mounting bracket (13) comprising a cable strap (16) with adjustable strap clip for holding the audio cables (11).