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公开(公告)号：US20240056754A1
公开(公告)日：2024-02-15
申请号：US18187853
申请日：2023-03-22
申请人： LISNR, Inc
发明人： Rebekah Farrar , Oz Mendel , William Knauer
IPC分类号： H04S3/00
CPC分类号： H04S3/008 , H04S2400/01
摘要： Methods and systems for controlling the receipt and transmission of audio transmissions are provided. In one embodiment, a method is provided that includes selecting a first audio channel and transmitting a first audio transmission using the first audio channel. A second audio transmission may then be received that contains an acknowledgment of the first audio transmission. In certain instances, the second audio transmission may be received on a second audio channel. If no acknowledgment is received for the predetermined period of time, the first audio transmission may be transmitted again using a third audio channel.
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公开(公告)号：US11452153B2
公开(公告)日：2022-09-20
申请号：US15864797
申请日：2018-01-08
申请人： LISNR, Inc.
发明人： William Knauer , Ian Andrew Birnam , Austin Andrew Teames , Joshua Matthew Glick , Rodney B. Williams
摘要： A networkable device is coupled to a wireless IP gateway or paired to a personal area network (PAN) via the use of a sonic tone, which may be a human audible tone, which encodes a symbol sequence representing a binary message useful for implementing connection to a wireless IP gateway or pairing with a PAN. In one embodiment the sonic tone conveys a media access controller (MAC) address, to facilitate connection and/or pairing. Alternatively, or in addition, the sonic tone may encode a Service Set Identifier (SSID) and password for connection to a wireless network (Wi-Fi), or a BLUETOOTH (IEEE 802.15.1) identifier and/or PIN for connection to a BLUETOOTH (IEEE 802.15.1) PAN. In particular implementation of this embodiment the tone is produced by the IP gateway and used to initiate Wi-Fi connection, and/or the tone is produced by the master device of a PAN to initiate BLUETOOTH (IEEE 802.15.1) connection.
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公开(公告)号：US20170279542A1
公开(公告)日：2017-09-28
申请号：US15081158
申请日：2016-03-25
申请人： LISNR, Inc.
CPC分类号： H04B11/00 , H04L65/1059 , H04L65/4084 , H04R1/225 , H04R2499/11
摘要： A mobile device that generates and transmits a human-inaudible acoustic signal, which encodes a symbol sequence representing a binary message, for delivery as audio content, is disclosed. The mobile device encodes the binary message into a sequence of symbols that are each associated with frequency characteristics and generates and transmits the human-inaudible acoustic signal, based on the frequency characteristics of the symbols. A further mobile device that receives and decodes a human-inaudible acoustic signal, which encodes a symbol sequence representing a binary message, embedded within audio content, is disclosed. The mobile device repeatedly performs a frequency domain transformation of samples of the signal to generate a symbol sequence, and performs error correction decoding upon the symbol sequence to determine the validity of the symbol sequence. The mobile device then transmits the symbol sequence as the decoded equivalent of the human-inaudible acoustic signal, once a valid symbol sequence has been identified.
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公开(公告)号：US20240071399A1
公开(公告)日：2024-02-29
申请号：US18239382
申请日：2023-08-29
申请人： LISNR, INC
发明人： Oz MENDEL
IPC分类号： G10L19/16 , G10L19/005 , G10L19/018
CPC分类号： G10L19/167 , G10L19/005 , G10L19/018
摘要： Methods and systems for improved data communication using audio transmissions are provided. In one embodiment, a method is provided that includes receiving data for transmission and a corresponding identifier. The data may be encoded to form a payload and the identifier may be encoded to form a training sequence. The training sequence may be combined with the payload to form an audio transmission, which may be transmitted as an audio signal within an audio environment.
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公开(公告)号：US11605110B2
公开(公告)日：2023-03-14
申请号：US17175955
申请日：2021-02-15
申请人： LISNR, Inc
IPC分类号： G06Q30/00 , G06Q30/0251 , G06Q30/0241
摘要： The present disclosure relate to equalization of audio transmissions that are used to transmit content, such as advertisements, promotions, redemptions, and/or other types of content (e.g., images, multimedia, audio, web-based, applications, and/or the like) between a first computing device. In some instances, the transmission may occur when the first computing device is located within proximity to a physical location, such as an entity or drive through location.
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公开(公告)号：US10826623B2
公开(公告)日：2020-11-03
申请号：US15847205
申请日：2017-12-19
申请人： LISNR, Inc.
摘要： A disclosed device is configured to generate and transmit a sonic signal that encodes a symbol sequence, representing a data message, for delivery as audio content. The device includes an audio transmitter and a processor circuit. The processor circuit is configured to encode the data message as a sequence of symbols, with each symbol encoding a data value that is associated with respective phase characteristics of a transmitted audio carrier. The processor is further configured to generate audio samples of a digitized version of the sequence of symbols using the phase characteristics of the audio carrier associated with the symbols, and to control the audio transmitter to generate and transmit the sonic signal, based on the audio samples. A further disclosed device is configured to receive the sonic signal and to decode a symbol sequence by identifying symbols corresponding to determined phases of the sonic signal.
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公开(公告)号：US20240072910A1
公开(公告)日：2024-02-29
申请号：US18239440
申请日：2023-08-29
申请人： LISNR,INC.
发明人： Oz MENDEL
CPC分类号： H04B11/00 , H04L1/0071
摘要： Methods and systems for improved transmission of data using audio signals are provided. In one embodiment, a method is provided that includes receiving data for transmission within an audio environment and interleaving the data. The interleaved data may be modulated into multiple audio symbols to form an audio transmission. An audio signal may be generated based on, and the audio signal may be transmitted within the audio environment. In another embodiment, a method is provided that includes detecting an audio transmission within an audio signal from an audio environment. The audio transmission may be extracted, and a data payload of the audio transmission may be identified. The data payload may be deinterleaved (e.g., according to a predetermined interleaving protocol). The deinterleaved data may be decoded, allowing data to be extracted.
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公开(公告)号：US11330319B2
公开(公告)日：2022-05-10
申请号：US15519990
申请日：2015-10-15
申请人： LISNR, Inc.
发明人： William Knauer
IPC分类号： H04B1/02 , H04N21/422 , H04N21/41 , H04N21/439 , H04N21/462 , H04N21/658 , H04B11/00
摘要： A method of encoding, and decoding, a human-inaudible acoustic signal 240 embedded within audio content, suitable for use within the processor of an encoding and broadcasting system or a decoding and receiving system 200, 202. A binary message is encoded into a sequence 1000, 2000 of symbols selected from a group of four or eight symbols, each symbol encoding two or three binary bits with an associated frequency. The human-inaudible acoustic signal may have a variable length, with the length of the signal encoded in a header 1002-1008, 2002-2009. The encoding uses both forward error correction and cyclic redundancy coding to increase the robustness of the transmission. Furthermore, the binary bits encoded by the symbols are selected such that a Hamming distance of a single bit transformation exists between symbols associated with adjacent frequencies, so that a frequency error creates only a single bit error.
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公开(公告)号：US20190190621A1
公开(公告)日：2019-06-20
申请号：US15847205
申请日：2017-12-19
申请人： LISNR, Inc.
摘要： A disclosed device is configured to generate and transmit a sonic signal that encodes a symbol sequence, representing a data message, for delivery as audio content. The device includes an audio transmitter and a processor circuit. The processor circuit is configured to encode the data message as a sequence of symbols, with each symbol encoding a data value that is associated with respective phase characteristics of a transmitted audio carrier. The processor is further configured to generate audio samples of a digitized version of the sequence of symbols using the phase characteristics of the audio carrier associated with the symbols, and to control the audio transmitter to generate and transmit the sonic signal, based on the audio samples. A further disclosed device is configured to receive the sonic signal and to decode a symbol sequence by identifying symbols corresponding to determined phases of the sonic signal.
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公开(公告)号：US20190096412A1
公开(公告)日：2019-03-28
申请号：US15719164
申请日：2017-09-28
申请人： LISNR, Inc.
发明人： William Knauer , Rebekah L. Farrar
IPC分类号： G10L19/018 , G10L19/02
摘要： A sonic signal encodes a symbol sequence representing a binary message, for delivery as audio content. The binary message into a sequence of symbols that are each associated with frequency characteristics transmitted over a time period. Two carriers are transmitted at two selected frequencies during each time period, delivering the binary data at a high rate. The symbol sequence is preceded by a prefix which takes the form of a sweeping frequency tone which sweeps over the frequency ranges of the carriers. Further, the amplitudes of the carriers are adjusted so that higher frequency transmissions are transmitted at higher sound pressure levels. Methods for synchronizing to the symbol sequence and decoding the symbol sequence are also described.
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