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公开(公告)号：US10176815B1
公开(公告)日：2019-01-08
申请号：US14541955
申请日：2014-11-14
IPC分类号： G06F17/00 , G10L19/012 , H04R1/08 , G10L19/16
摘要： Described are techniques for determining whether a received audio signal is corrupted or a product of noise, prior to decoding the entire signal. A received audio signal may include both initialization data and encoded payload data. Correspondence between the initialization data and confirmation data may be determined. If the correspondence indicates a match, the audio receiver may continue decoding the audio signal to access the payload data. If the correspondence does not indicate a match, the audio receiver may cease decoding, which may conserve power, computing resources, and time, ensuring that subsequent audio signals are not missed while the audio receiver decodes a false or corrupted signal.
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公开(公告)号：US20170366956A1
公开(公告)日：2017-12-21
申请号：US15188831
申请日：2016-06-21
CPC分类号： H04W8/005 , H04B7/04 , H04L5/006 , H04L67/104 , H04W40/244 , H04W72/005 , H04W84/18 , H04W88/06
摘要： Network hardware devices organized in a wireless mesh network (WMN) in which one network hardware devices includes multiple radios. A processing device of a first network hardware device scans a channel of the first radio for access point (AP) beacon frames that each contains information identifying a mesh network device in a WMN. The processing device creates a list of a plurality of mesh network device from the AP beacon frames and transmits a location probe transmission by each of the plurality of radios one sector at a time in a neighbor discovery process. The processing device receives metrics of the location probe transmissions received by the plurality of mesh network devices in the neighbor discovery process and configures each of the plurality of radios to communicate with one of a set of neighbor mesh network devices using the metrics in a neighbor selection process.
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公开(公告)号：US10523247B2
公开(公告)日：2019-12-31
申请号：US15154327
申请日：2016-05-13
发明人： Varadarajan Gopalakrishnan , Andrew David Price , In Chul Hyun , Jin Dong Kim , Subram Narasimhan
IPC分类号： H04L29/08 , H04B1/00 , H04M1/02 , H01Q5/30 , H01Q1/24 , H01Q1/50 , H01Q21/29 , H04W40/02 , H04W84/22 , H01Q19/10 , H01Q19/185 , H01Q21/20 , H01Q21/24 , H01Q21/28 , H04W84/12 , H04W84/18
摘要： Wireless mesh network (WMN) architectures of network hardware devices organized in a mesh topology in which the network hardware devices cooperate in distribution of content files to client consumption devices in an environment of limited connectivity to broadband Internet infrastructure is described. A self-contained, fully connected WMN can be used for localized delivery of content files. One WMN includes a single ingress node for ingress of content files into the wireless mesh network. The WMN also includes multiple network hardware devices wirelessly connected through a network backbone formed by multiple P2P wireless connections. A first network hardware device is wirelessly connected to a client consumption device by a first node-to-client (N2C) wireless connection and a second network hardware device is wirelessly connected to the single ingress node.
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公开(公告)号：US10332388B1
公开(公告)日：2019-06-25
申请号：US14542068
申请日：2014-11-14
IPC分类号： G08C23/02
摘要： Described are techniques for determining whether a received audio signal is corrupted or a product of noise, prior to decoding the entire signal. An emitted audio signal may include initialization data, which includes a predetermined sequence of symbols, and which precedes encoded payload data. Correspondence between the predetermined sequence of symbols and expected symbols stored as confirmation data may be determined. If the correspondence indicates a match, an audio receiver may continue decoding the audio signal to access the payload data. If the correspondence does not indicate a match, the audio receiver may cease decoding, which may conserve power, computing resources, and time, ensuring that subsequent audio signals are not missed while the audio receiver decodes a false or corrupted signal.
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公开(公告)号：US10129731B2
公开(公告)日：2018-11-13
申请号：US15188831
申请日：2016-06-21
摘要： Network hardware devices organized in a wireless mesh network (WMN) in which one network hardware devices includes multiple radios. A processing device of a first network hardware device scans a channel of the first radio for access point (AP) beacon frames that each contains information identifying a mesh network device in a WMN. The processing device creates a list of a plurality of mesh network device from the AP beacon frames and transmits a location probe transmission by each of the plurality of radios one sector at a time in a neighbor discovery process. The processing device receives metrics of the location probe transmissions received by the plurality of mesh network devices in the neighbor discovery process and configures each of the plurality of radios to communicate with one of a set of neighbor mesh network devices using the metrics in a neighbor selection process.
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公开(公告)号：US20170366458A1
公开(公告)日：2017-12-21
申请号：US15188841
申请日：2016-06-21
IPC分类号： H04L12/741 , H04L29/12
CPC分类号： H04L45/745 , H04L45/021 , H04L61/6022 , H04W40/02 , Y02D70/1224 , Y02D70/1242 , Y02D70/1244 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/164 , Y02D70/166 , Y02D70/20 , Y02D70/22 , Y02D70/30
摘要： Network hardware devices organized in a wireless mesh network (WMN) in which one network hardware devices includes a first radio and a second radio coupled to a processing device. The processing device receives a request from a client consumption device via the first radio and determines a destination for the request as a second mesh network device. The processing device access a master routing table to determine that the second radio is to forward the request and forwards the request to the second radio. The second radio accesses a local routing table at the second radio to determine that a radio of a third mesh network device is a next-hop mesh network device in a first path to the second mesh network device. The second radio sends the request to the radio of the third mesh network device.
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公开(公告)号：US10292015B1
公开(公告)日：2019-05-14
申请号：US15637108
申请日：2017-06-29
摘要： Described is an improved active-beacon/passive-listener time difference of arrival navigation system that relies on the multiple beacons to transmit uncoded acoustic pulses of a same frequency that propagate in the system at a same time for high-speed device tracking. Listening devices may receive multiple encoded radio frequency pulses (RF) prior to a single acoustic pulse, and then resolve which RF pulse corresponds to the acoustic pulse using triangulation techniques.
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公开(公告)号：US10230636B2
公开(公告)日：2019-03-12
申请号：US15188841
申请日：2016-06-21
IPC分类号： H04W40/24 , H04L12/741 , H04L29/12 , H04W40/02 , H04L12/755
摘要： Network hardware devices organized in a wireless mesh network (WMN) in which one network hardware devices includes a first radio and a second radio coupled to a processing device. The processing device receives a request from a client consumption device via the first radio and determines a destination for the request as a second mesh network device. The processing device access a master routing table to determine that the second radio is to forward the request and forwards the request to the second radio. The second radio accesses a local routing table at the second radio to determine that a radio of a third mesh network device is a next-hop mesh network device in a first path to the second mesh network device. The second radio sends the request to the radio of the third mesh network device.
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公开(公告)号：US09887708B2
公开(公告)日：2018-02-06
申请号：US15154314
申请日：2016-05-13
发明人： In Chul Hyun , Andrew David Price , Tzung-I Lee , Kwok Lee , Cheol Su Kim , Omar Fawazhashim Zakaria , Varadarajan Gopalakrishnan
IPC分类号： H04W88/10 , H04B1/00 , H04M1/02 , H01Q5/30 , H01Q1/24 , H01Q1/50 , H01Q21/29 , H04L29/08 , H04W40/02 , H04W84/22 , H01Q19/10 , H01Q19/185 , H01Q21/20 , H01Q21/24 , H01Q21/28 , H04W84/12 , H04W84/18
CPC分类号： H04B1/0057 , H01Q1/243 , H01Q1/50 , H01Q5/30 , H01Q19/106 , H01Q19/185 , H01Q21/205 , H01Q21/24 , H01Q21/28 , H01Q21/29 , H04L67/06 , H04L67/104 , H04L67/1091 , H04L67/1097 , H04M1/026 , H04W40/02 , H04W84/12 , H04W84/18 , H04W84/22
摘要： Network hardware devices organized in a Wireless mesh network (WMN) in which the network hardware devices cooperate in distribution of content files to client consumption devices in an environment of limited connectivity to broadband Internet infrastructure are described. One mesh network device includes a micro controller, RF radios, and antenna switching circuitry. The antenna switching circuitry, in response to the control signals from a micro controller, selectively couples individual ones of a first set of antennas to individual channels of the set of RF radios to communicate content data with client consumption devices and selectively couples individual ones of a second set of antennas to other individual channels of the set of RF radios to communicate content data with other mesh network devices in a WMN.
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公开(公告)号：US20170223090A1
公开(公告)日：2017-08-03
申请号：US15154327
申请日：2016-05-13
发明人： Varadarajan Gopalakrishnan , Andrew David Price , In Chul Hyun , Jin Dong Kim , Subram Narasimhan
摘要： Wireless mesh network (WMN) architectures of network hardware devices organized in a mesh topology in which the network hardware devices cooperate in distribution of content files to client consumption devices in an environment of limited connectivity to broadband Internet infrastructure is described. A self-contained, fully connected WMN can be used for localized delivery of content files. One WMN includes a single ingress node for ingress of content files into the wireless mesh network. The WMN also includes multiple network hardware devices wirelessly connected through a network backbone formed by multiple P2P wireless connections. A first network hardware device is wirelessly connected to a client consumption device by a first node-to-client (N2C) wireless connection and a second network hardware device is wirelessly connected to the single ingress node.
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