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1.发明授权Methods and arrangements for error correction in decoding data from an electromagnetic radiator 有权解码来自电磁辐射器的数据的纠错方法和装置公开(公告)号：US09148250B2
公开(公告)日：2015-09-29
申请号：US13539354
申请日：2012-06-30
CPC分类号： H04L1/0045 , H03M13/09
摘要： Embodiments may communicate via an electromagnetic radiator, or light source, that can be amplitude modulated such as light emitting diode lighting via receivers that can determine data from light received from the radiator. Some embodiments decode data of a packet transmitted from modulated lighting by means of a device with a low sampling frequency such as a relatively inexpensive camera. Many embodiments determine locations of start frame delimiters in packets. Several embodiments implement repeat decoding on packets of the same data to reduce packet error rates. Some embodiments are intended for indoor navigation via photogrammetry using self-identifying light anchors. In many embodiments, the data signal may be communicated via the light source at frequencies causing flicker that is not perceivable to the human eye.
摘要翻译： 实施例可以经由可以通过接收器进行幅度调制的电磁辐射器（例如发光二极管照明）进行通信，所述接收器可以从从散热器接收的光确定数据。 一些实施例通过具有低采样频率的设备（例如相对便宜的照相机）解码从调制照明发射的分组的数据。 许多实施例确定分组中起始帧分隔符的位置。 几个实施例对相同数据的分组实施重复解码以减少分组错误率。 一些实施例旨在通过使用自识别光锚的摄影测量来进行室内导航。 在许多实施例中，数据信号可以以导致人眼不可感知的闪烁的频率经由光源传送。
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2.发明授权Methods and arrangements for generating a waveform for frequency shift keying communications 有权用于生成用于频移键控通信的波形的方法和装置公开(公告)号：US09461752B2
公开(公告)日：2016-10-04
申请号：US13539351
申请日：2012-06-30
IPC分类号： H04L27/10 , H04B10/556 , H04B10/116
CPC分类号： H04B10/5563 , H04B10/116 , H04B10/502 , H04L27/04 , H04L27/12
摘要： Embodiments may provide a way of communicating via an electromagnetic radiator, or light source, that can be amplitude modulated such as light emitting diode (LED) lighting and receivers or detectors that can determine data from light received from the amplitude modulated electromagnetic radiator. Some embodiments may provide a waveform in the form of chips at a chipping clock frequency that switch a light source between on and off states to communicate via light sources that can be amplitude modulated such as LED lighting. Some embodiments may provide a method of transmitting the waveform via modulated LED lighting. Some embodiments are intended for indoor navigation via photogrammetry (i.e., image processing) using self-identifying LED light anchors. In many embodiments, the data signal may be communicated via the light source at amplitude modulating frequencies such that the resulting flicker is not perceivable to the human eye.
摘要翻译： 实施例可以提供通过可以被调幅的电磁辐射器或光源（例如发光二极管（LED）照明）和可以从从调幅电磁辐射器接收的光确定数据的接收器或检测器进行通信的方式。 一些实施例可以以切片时钟频率提供以切片时钟频率的芯片形式的波形，该光纤切换状态之间的光源通过可被调幅的光源（例如LED照明）进行通信。 一些实施例可以提供通过经调制的LED照明来发送波形的方法。 一些实施例旨在通过使用自识别LED光锚的摄影测量（即，图像处理）进行室内导航。 在许多实施例中，可以以幅度调制频率通过光源传送数据信号，使得所得到的闪烁对人眼不能察觉。
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公开(公告)号：US20140093234A1
公开(公告)日：2014-04-03
申请号：US13630066
申请日：2012-09-28
CPC分类号： H04B10/564 , H04B10/116 , H04B10/60 , H04B10/616 , H04J14/00
摘要： A light transmitter transmits multiple light packets, each formatted to include a same message comprising a series of bits, each bit represented as light that is intensity modulated over a bit period at a frequency indicative of the bit. The light packets are transmitted at different start-times to establish different phases, one for each of the light packets, to permit a light receiver to sample each message at a different phase of a fixed sample timeline that is asynchronous to the bit period and the frequency. The light receiver samples the multiple light packets based on the sample timeline, to sample each received message at one of the different sample phases, then constructs a best series of bits based on the multiple demodulated messages.
摘要翻译： 光发射器发送多个光分组，每个光分组被格式化以包括包括一系列比特的相同消息，每个比特被表示为在指示比特的频率的比特周期上进行强度调制的光。 光分组在不同的启动时间被发送以建立不同的相位，每个光分组一个，以允许光接收机在与比特周期异步的固定采样时间线的不同阶段采样每个消息，并且 频率。 光接收机基于采样时间线对多个光分组进行采样，以在不同采样阶段之一对每个接收到的消息进行采样，然后基于多个解调消息构建最佳的一系列位。
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4.发明申请METHODS AND ARRANGEMENTS FOR ERROR CORRECTION IN DECODING DATA FROM AN ELECTROMAGNETIC RADIATOR 有权用于从电磁辐射器解码数据中的错误校正的方法和装置公开(公告)号：US20140006907A1
公开(公告)日：2014-01-02
申请号：US13539354
申请日：2012-06-30
CPC分类号： H04L1/0045 , H03M13/09
摘要： Embodiments may communicate via an electromagnetic radiator, or light source, that can be amplitude modulated such as light emitting diode lighting via receivers that can determine data from light received from the radiator. Some embodiments decode data of a packet transmitted from modulated lighting by means of a device with a low sampling frequency such as a relatively inexpensive camera. Many embodiments determine locations of start frame delimiters in packets. Several embodiments implement repeat decoding on packets of the same data to reduce packet error rates. Some embodiments are intended for indoor navigation via photogrammetry using self-identifying light anchors. In many embodiments, the data signal may be communicated via the light source at frequencies causing flicker that is not perceivable to the human eye.
摘要翻译： 实施例可以经由可以通过接收器进行幅度调制的电磁辐射器（例如发光二极管照明）进行通信，所述接收器可以从从散热器接收的光确定数据。 一些实施例通过具有低采样频率的设备（例如相对便宜的照相机）解码从调制照明发射的分组的数据。 许多实施例确定分组中起始帧分隔符的位置。 几个实施例对相同数据的分组实施重复解码以减少分组错误率。 一些实施例旨在通过使用自识别光锚的摄影测量来进行室内导航。 在许多实施例中，数据信号可以以导致人眼不可感知的闪烁的频率经由光源传送。
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5.发明申请METHODS AND ARRANGEMENTS FOR GENERATING A WAVEFORM FOR FREQUENCY SHIFT KEYING COMMUNICATIONS 有权用于产生频移键控通信的波形的方法和装置公开(公告)号：US20140003823A1
公开(公告)日：2014-01-02
申请号：US13539351
申请日：2012-06-30
IPC分类号： H04B10/04
CPC分类号： H04B10/5563 , H04B10/116 , H04B10/502 , H04L27/04 , H04L27/12
摘要： Embodiments may provide a way of communicating via an electromagnetic radiator, or light source, that can be amplitude modulated such as light emitting diode (LED) lighting and receivers or detectors that can determine data from light received from the amplitude modulated electromagnetic radiator. Some embodiments may provide a waveform in the form of chips at a chipping clock frequency that switch a light source between on and off states to communicate via light sources that can be amplitude modulated such as LED lighting. Some embodiments may provide a method of transmitting the waveform via modulated LED lighting. Some embodiments are intended for indoor navigation via photogrammetry (i.e., image processing) using self-identifying LED light anchors. In many embodiments, the data signal may be communicated via the light source at amplitude modulating frequencies such that the resulting flicker is not perceivable to the human eye.
摘要翻译： 实施例可以提供通过可以被调幅的电磁辐射器或光源（例如发光二极管（LED）照明）和可以从从调幅电磁辐射器接收的光确定数据的接收器或检测器进行通信的方式。 一些实施例可以以切片时钟频率提供以切片时钟频率的芯片形式的波形，该光纤切换状态之间的光源通过可被调幅的光源（例如LED照明）进行通信。 一些实施例可以提供通过经调制的LED照明来发送波形的方法。 一些实施例旨在通过使用自识别LED光锚的摄影测量（即，图像处理）进行室内导航。 在许多实施例中，可以以幅度调制频率通过光源传送数据信号，使得所得到的闪烁对人眼不能察觉。
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公开(公告)号：US08861976B2
公开(公告)日：2014-10-14
申请号：US13538888
申请日：2012-06-29
申请人： Richard D. Roberts , Jing Zhu , Mathys C. Walma
发明人： Richard D. Roberts , Jing Zhu , Mathys C. Walma
IPC分类号： H04B10/116
CPC分类号： H04B10/11 , H04L1/0625
摘要： A Multiple-Input-Multiple-Output (MIMO) data transmit-receive protocol that can be used with an arbitrary light array, including one or more lights, that transmits light to a light receiver having an image sensor, including a large number of light sensing pixels. The protocol supports two primary protocol or coding modes in which the light array may transmit: spatial coding and space-time coding. The protocol is constructed upon the use of efficient start-frame-delimiters (SFDs) and data-delimiters (DDs). The lights may be implemented to transmit the SFDs, the data delimiters, and data bits as modulated light. The light may be modulated in accordance with a modulation technique referred to as frequency shift on-off keying (FSOOK).
摘要翻译： 一种多输入多输出（MIMO）数据发送 - 接收协议，其可以与包括一个或多个光的任意光阵列一起使用，所述光阵列将光传输到具有图像传感器的光接收器，所述光接收器包括大量的光 感测像素。 该协议支持光阵列可以传输的两种主要协议或编码模式：空间编码和时空编码。 该协议是使用高效的起始帧分隔符（SFD）和数据分隔符（DD）构建的。 灯可以被实现为将SFD，数据定界符和数据位作为调制光传输。 可以根据称为频移开关键控（FSOOK）的调制技术来调制光。
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公开(公告)号：US20140003817A1
公开(公告)日：2014-01-02
申请号：US13538888
申请日：2012-06-29
申请人： Richard D. Roberts , Jing Zhu , Mathys C. Walma
发明人： Richard D. Roberts , Jing Zhu , Mathys C. Walma
CPC分类号： H04B10/11 , H04L1/0625
摘要： A Multiple-Input-Multiple-Output (MIMO) data transmit-receive protocol that can be used with an arbitrary light array, including one or more lights, that transmits light to a light receiver having an image sensor, including a large number of light sensing pixels. The protocol supports two primary protocol or coding modes in which the light array may transmit: spatial coding and space-time coding. The protocol is constructed upon the use of efficient start-frame-delimiters (SFDs) and data-delimiters (DDs). The lights may be implemented to transmit the SFDs, the data delimiters, and data bits as modulated light. The light may be modulated in accordance with a modulation technique referred to as frequency shift on-off keying (FSOOK).
摘要翻译： 一种多输入多输出（MIMO）数据发送 - 接收协议，其可以与包括一个或多个光的任意光阵列一起使用，所述光阵列将光传输到具有图像传感器的光接收器，所述光接收器包括大量的光 感测像素。 该协议支持光阵列可以传输的两种主要协议或编码模式：空间编码和时空编码。 该协议是使用高效的起始帧分隔符（SFD）和数据分隔符（DD）构建的。 灯可以被实现为将SFD，数据定界符和数据位作为调制光传输。 可以根据称为频移开关键控（FSOOK）的调制技术来调制光。
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公开(公告)号：US09900858B2
公开(公告)日：2018-02-20
申请号：US14129301
申请日：2013-05-30
CPC分类号： H04W64/00 , G01S5/12 , G01S13/765 , H04J3/0667
摘要： Some demonstrative embodiments include devices, systems and/or methods of estimating a location of a mobile device. For example, an apparatus may include a controller to control a first wireless communication device to communicate a probe request with a second wireless communication device and to communicate a probe response with the second wireless communication device, wherein the probe response includes a delay value representing a delay period between a reception of the probe request and a transmission of a frame in response to the probe request.
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公开(公告)号：US20140086587A1
公开(公告)日：2014-03-27
申请号：US13625361
申请日：2012-09-24
申请人： Richard D. Roberts , Jing Zhu , Mathys C. Walma
发明人： Richard D. Roberts , Jing Zhu , Mathys C. Walma
IPC分类号： H04B10/10
CPC分类号： H04B10/116
摘要： A light array includes lights that transmit modulated light to indicate their unique light identifiers (IDs) and lights that transmit unmodulated light. A light receiver records images of the light array and recovers the light IDs from the modulated light. The light receiver uses the IDs to retrieve a light map representative of the light array. The receiver aligns the retrieved light map with the recorded images of the light array, and accesses real-world positions of all of the light in the light array, as deployed, based on the aligned light map. The light receiver determines a 3-dimensional position of the light receiver relative to the light array
摘要翻译： 光阵列包括发射调制光以指示其唯一的光标识符（ID）的灯和发射未调制光的灯。 光接收器记录光阵列的图像并从调制光恢复光ID。 光接收器使用ID来检索代表光阵列的光地图。 接收器将所检索的光图与所述光阵列的记录图像对准，并且基于对准的光图，访问所述光阵列中的所有光的实际位置。 光接收器确定光接收器相对于光阵列的三维位置
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10.发明申请公开(公告)号：US20140308048A1
公开(公告)日：2014-10-16
申请号：US13977696
申请日：2011-11-14
IPC分类号： H04B10/556 , H04B10/524 , H04B10/50
CPC分类号： H04B10/116 , H04B10/502 , H04B10/524 , H04B10/5563 , H04B10/60 , H04L25/4902 , H04L27/02 , H04L27/10 , H04L27/12 , H04L27/144 , H04L27/2096 , H04L27/223
摘要： Embodiments may provide a way of communicating via an electromagnetic radiator, or light source, that can be amplitude modulated such as light emitting diode (LED) lighting and receivers or detectors that can determine data from light received from the amplitude modulated electromagnetic radiator. Some embodiments may provide a method of transmitting/encoding data via modulated LED lighting and other embodiments may provide receiving/decoding data from the modulated LED lighting by means of a device with a low sampling frequency such as a relatively inexpensive camera (as might be found in a smart phone). Some embodiments are intended for indoor navigation via photogrammetry (i.e., image processing) using self-identifying LED light anchors. In many embodiments, the data signal may be communicated via the light source at amplitude modulating frequencies such that the resulting flicker is not perceivable to the human eye.
摘要翻译： 实施例可以提供通过可以被调幅的电磁辐射器或光源（例如发光二极管（LED）照明）和可以从从调幅电磁辐射器接收的光确定数据的接收器或检测器进行通信的方式。 一些实施例可以提供通过经调制的LED照明来发送/编码数据的方法，并且其他实施例可以通过具有低采样频率的设备（例如相对便宜的照相机）提供来自经调制的LED照明的数据的接收/解码 在智能手机中）。 一些实施例旨在通过使用自识别LED光锚的摄影测量（即，图像处理）进行室内导航。 在许多实施例中，可以以幅度调制频率通过光源传送数据信号，使得所得到的闪烁对人眼不能察觉。
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