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公开(公告)号：US20180003756A1
公开(公告)日：2018-01-04
申请号：US15638934
申请日：2017-06-30
发明人： Yongming ZHANG
摘要： A system and method use electric potential measurements to locate and characterize passing projectiles, including advanced data processing methods to reject background noise and determine projectile speed, preferentially incorporating acoustic-based measurements to provide additional benefits.
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公开(公告)号：US08868223B1
公开(公告)日：2014-10-21
申请号：US13553735
申请日：2012-07-19
申请人： Matthew Sharifi
发明人： Matthew Sharifi
IPC分类号： G06F17/00
CPC分类号： G01S5/24 , G06F17/30743 , G10L25/48
摘要： Systems and methods for determining location based on audio fingerprinting are disclosed. An extraction component extracts a set of interest points from an audio signal associated with an audio announcement. Then a matching component determines if the extracted set of interest points matches a set of interest points representative of an audio fingerprint in a data store comprising audio fingerprints. In an aspect, the audio fingerprints in the audio fingerprint data store represent announcements for underground transportation systems. A location component further determines location information associated with the audio fingerprint based in part on the set of extracted interest points matching the set of audio interest points representative of the audio fingerprint in the data store.
摘要翻译： 公开了基于音频指纹识别位置的系统和方法。 提取组件从与音频通知相关联的音频信号中提取一组感兴趣点。 然后，匹配组件确定所提取的感兴趣组是否与包括音频指纹的数据存储器中的表示音频指纹的一组感兴趣点匹配。 在一方面，音频指纹数据存储器中的音频指纹代表地下运输系统的公告。 位置组件还部分地基于与代表数据存储器中的音频指纹的音频兴趣点集合匹配的提取的兴趣点集合来确定与音频指纹相关联的位置信息。
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公开(公告)号：US20140269212A1
公开(公告)日：2014-09-18
申请号：US13842295
申请日：2013-03-15
发明人： Pei Xiang , Kwokleung Chan
IPC分类号： G08C23/02
摘要： In general, techniques are described for locating a user using an ultrasound mesh. The techniques may be performed by an interactive system comprising one or more processors. The processors may be configured to determine an amplitude of a first ultrasound signal emitted by one or more transducers and received by a microphone. This first ultrasound signal may be of a first frequency. The processors may then determine an amplitude of a second ultrasound signal emitted by the one or more transducers and received by the microphone. The second ultrasound signal may be of a second frequency different from the first frequency. The processors may be further configured to determine a location of the microphone relative to the one or more transducers based at least on the determined amplitude of the first ultrasound signal and the determined amplitude of the second ultrasound signal.
摘要翻译： 通常，描述了使用超声波网格定位用户的技术。 这些技术可以由包括一个或多个处理器的交互式系统来执行。 处理器可以被配置为确定由一个或多个换能器发射并由麦克风接收的第一超声信号的幅度。 该第一超声信号可以是第一频率。 处理器然后可以确定由一个或多个换能器发射并由麦克风接收的第二超声信号的幅度。 第二超声信号可以是与第一频率不同的第二频率。 处理器还可以被配置为至少基于所确定的第一超声信号的幅度和确定的第二超声信号的幅度来确定麦克风相对于一个或多个换能器的位置。
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公开(公告)号：US20240329186A1
公开(公告)日：2024-10-03
申请号：US18740270
申请日：2024-06-11
申请人： Gracenote, Inc.
发明人： Zafar Rafii
摘要： Methods, apparatus, systems and articles of manufacture are disclosed to improve detection of audio signatures. An example apparatus includes at least one memory, instructions in the apparatus, and processor circuitry to execute the instructions to: determine a first time difference of arrival for a first audio sensor of a meter and a second audio sensor of the meter based on a first audio recording from the first audio sensor and a second audio recording from the second audio sensor; determine a second time difference of arrival for the first audio sensor and a third audio sensor of the meter based on the first audio recording and a third audio recording from the third audio sensor; determine a match by comparing the first time difference of arrival to i) a first virtual source time difference of arrival and ii) a second virtual source time difference of arrival; in response to determining that the first time difference of arrival matches the first virtual source time difference of arrival, identify a first virtual source location as the location of a media presentation device presenting media; and remove the second audio recording to reduce a computational burden on the processor.
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公开(公告)号：US20240319311A1
公开(公告)日：2024-09-26
申请号：US18670068
申请日：2024-05-21
发明人： Yuan Tian , Qi Wang , Zhenguo Du
CPC分类号： G01S5/0072 , G01S5/24
摘要： A first electronic device indicates at least two second electronic devices to enable respective sound recording functions, and indicates a third electronic device to send an ultrasonic signal. After enabling the sound recording functions, the at least two second electronic devices determine a relative location relationship between each of the at least two second electronic devices and the third electronic device based on respectively detected ultrasonic signals, and then send the relative location relationship between each of the at least two second electronic devices and the third electronic device to the first electronic device. Finally, the first electronic device sends the relative location relationship between each of the at least two second electronic devices and the third electronic device to the at least two second electronic devices and the third electronic device.
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公开(公告)号：US11828876B2
公开(公告)日：2023-11-28
申请号：US16857166
申请日：2020-04-23
发明人： Luxin Fu , Zhicheng Xing
IPC分类号： G01S7/481 , G01S17/86 , G01S17/08 , G01S5/10 , G01S5/24 , G01S7/48 , G01S7/487 , G02B26/00 , G02B6/12
CPC分类号： G01S7/4813 , G01S5/10 , G01S5/24 , G01S7/4808 , G01S7/4876 , G01S17/08 , G01S17/86 , G02B26/00 , G02B2006/12121 , G05B2219/37281 , G05B2219/37425
摘要： The present invention relates to a laser rangefinder having common optical path comprising a housing assembly, a control and display assembly mounted in the housing assembly, a mounting device mounted in the housing assembly, an imaging module mounted on the mounting device and a laser module movably mounted on the mounting device longitudinally next to the imaging module, the laser module being electrically connected with the control and display assembly, the laser module comprising a laser emitting apparatus, a laser receiving apparatus and a reference point indicating apparatus, wherein a light path of the laser emitting apparatus and a light path of the laser receiving apparatus are configured to be independent to a light path of the reference point indicating apparatus, an optical axis of light path of the laser emitting apparatus shooting at the target object and an optical axis of the reference point indicating apparatus are collinear.
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公开(公告)号：US20180143290A1
公开(公告)日：2018-05-24
申请号：US15281849
申请日：2016-09-30
发明人： Wayne W. Altrichter
CPC分类号： G01S5/14 , G01C21/005 , G01S5/0018 , G01S5/02 , G01S5/0263 , G01S5/0278 , G01S5/0294 , G01S5/16 , G01S5/20 , G01S5/22 , G01S5/24 , G01S5/26 , G01S11/02 , G01S2205/003
摘要： A system and method is provided for registering outputs from a plurality of remote positional data sources, the system having: a plurality of positional data sources disposed on a plurality of units providing a plurality of types of positional data relative to at least one commonly tracked object held as a local positional data source; a processor disposed on a unit configured to process the positional data from each positional data source and apply a filter to the positional data; and the processor configured to weigh the positional data based on a probability of that a positional datum in the positional data is accurate and using weighted positional data to identify an absolute location of the commonly tracked object.
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公开(公告)号：US09129515B2
公开(公告)日：2015-09-08
申请号：US13842295
申请日：2013-03-15
发明人： Pei Xiang , Kwokleung Chan
摘要： In general, techniques are described for locating a user using an ultrasound mesh. The techniques may be performed by an interactive system comprising one or more processors. The processors may be configured to determine an amplitude of a first ultrasound signal emitted by one or more transducers and received by a microphone. This first ultrasound signal may be of a first frequency. The processors may then determine an amplitude of a second ultrasound signal emitted by the one or more transducers and received by the microphone. The second ultrasound signal may be of a second frequency different from the first frequency. The processors may be further configured to determine a location of the microphone relative to the one or more transducers based at least on the determined amplitude of the first ultrasound signal and the determined amplitude of the second ultrasound signal.
摘要翻译： 通常，描述了使用超声波网格定位用户的技术。 这些技术可以由包括一个或多个处理器的交互式系统来执行。 处理器可以被配置为确定由一个或多个换能器发射并由麦克风接收的第一超声信号的幅度。 该第一超声信号可以是第一频率。 处理器然后可以确定由一个或多个换能器发射并由麦克风接收的第二超声信号的幅度。 第二超声信号可以是与第一频率不同的第二频率。 处理器还可以被配置为至少基于所确定的第一超声信号的幅度和确定的第二超声信号的幅度来确定麦克风相对于一个或多个换能器的位置。
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公开(公告)号：US09357353B2
公开(公告)日：2016-05-31
申请号：US14819982
申请日：2015-08-06
摘要： An exemplary method includes: obtaining I and Q complex signal parameters of signals received from a mobile tag at each of at least three antenna elements forming part of a positioning device; extracting an identifier modulated onto the signals received from the mobile tag; and transmitting the I and Q complex signal parameters and the identifier to allow a position calculating device to calculate a bearing of the mobile tag from the positioning device, wherein transmitting the I and Q complex signal parameters and the identifier comprises the positioning device wirelessly broadcasting the I and Q complex signal parameters and the identifier. An exemplary apparatus and computer readable medium configured to perform the method are also disclosed.
摘要翻译： 一种示例性方法包括：获得在形成定位设备的一部分的至少三个天线元件中的每一个处从移动标签接收的信号的I和Q复信号参数; 提取调制到从移动标签接收的信号的标识符; 以及发送所述I和Q复信号参数和所述标识符，以允许位置计算装置从所述定位装置计算所述移动标签的方位，其中发送所述I和Q复信号参数以及所述标识符包括所述定位装置无线地广播 I和Q复合信号参数和标识符。 还公开了被配置为执行该方法的示例性装置和计算机可读介质。
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公开(公告)号：US20140051461A1
公开(公告)日：2014-02-20
申请号：US13876985
申请日：2010-10-29
IPC分类号： H04W4/02
摘要： An exemplary method includes: obtaining I and Q complex signal parameters of signals received from a mobile tag at each of at least three antenna elements forming part of a positioning device; extracting an identifier modulated onto the signals received from the mobile tag; and transmitting the I and Q complex signal parameters and the identifier-to allow a position calculating device to calculate a bearing of the mobile tag from the positioning device, wherein transmitting the I and Q complex signal parameters and the identifier comprises the positioning device wirelessly broadcasting the I and Q complex signal parameters and the identifier. An exemplary apparatus and computer readable medium configured to perform the method are also disclosed.
摘要翻译： 一种示例性方法包括：获得在形成定位设备的一部分的至少三个天线元件中的每一个处从移动标签接收的信号的I和Q复信号参数; 提取调制到从移动标签接收的信号的标识符; 以及发送I和Q复信号参数和标识符，以允许位置计算装置从定位装置计算移动标签的方位，其中发送I和Q复信号参数和标识符包括定位装置无线广播 I和Q复信号参数和标识符。 还公开了被配置为执行该方法的示例性装置和计算机可读介质。
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