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1. 发明授权

US08374201B2 Preamble design for supporting multiple topologies with visible light communication 有权
标题翻译：序言设计支持可见光通信的多个拓扑
公开(公告)号：US08374201B2
公开(公告)日：2013-02-12
申请号：US12871770
申请日：2010-08-30
申请人： Sridhar Rajagopal , Eun Tae Won , Ying Li
发明人： Sridhar Rajagopal , Eun Tae Won , Ying Li
IPC分类号： H04J3/00
CPC分类号： H04B10/116 , H04B10/1125 , H04B10/1149 , H04L7/041 , H04L7/046
摘要： For use in visible light communication (VLC), methods for synchronization with multiple topology support and for transmitting an extended preamble. The method for synchronization includes transmitting a two-part preamble sequence. The preamble sequence includes one or more repetitions of a fast locking pattern (FLP) configured to be used for clock synchronization, and one or more repetitions of a topology dependent pattern (TDP) configured to be used to distinguish a plurality of VLC topologies. The method for transmitting an extended preamble includes generating an extended preamble and transmitting the extended preamble during a receive or idle mode for maintaining visibility support and for better synchronization performance.
摘要翻译：用于可见光通信（VLC），用于与多个拓扑支持同步并用于发送扩展前同步码的方法。同步的方法包括发送两部分的前导码序列。前导序列包括被配置为用于时钟同步的快速锁定模式（FLP）的一个或多个重复，以及被配置为用于区分多个VLC拓扑的拓扑依赖模式（TDP）的一个或多个重复。用于发送扩展前同步码的方法包括在接收或空闲模式期间生成扩展前导码并发送扩展前同步码，以便维持可视性支持和更好的同步性能。

2. 发明申请

US20110064420A1 PREAMBLE DESIGN FOR SUPPORTING MULTIPLE TOPOLOGIES WITH VISIBLE LIGHT COMMUNICATION 有权
标题翻译：用于支持具有可见光通信的多个拓扑的前置设计
公开(公告)号：US20110064420A1
公开(公告)日：2011-03-17
申请号：US12871770
申请日：2010-08-30
申请人： Sridhar Rajagopal , Eun Tae Won , Ying Li
发明人： Sridhar Rajagopal , Eun Tae Won , Ying Li
IPC分类号： H04B10/00
CPC分类号： H04B10/116 , H04B10/1125 , H04B10/1149 , H04L7/041 , H04L7/046
摘要： For use in visible light communication (VLC), methods for synchronization with multiple topology support and for transmitting an extended preamble. The method for synchronization includes transmitting a two-part preamble sequence. The preamble sequence includes one or more repetitions of a fast locking pattern (FLP) configured to be used for clock synchronization, and one or more repetitions of a topology dependent pattern (TDP) configured to be used to distinguish a plurality of VLC topologies. The method for transmitting an extended preamble includes generating an extended preamble and transmitting the extended preamble during a receive or idle mode for maintaining visibility support and for better synchronization performance.
摘要翻译：用于可见光通信（VLC），用于与多个拓扑支持同步并用于发送扩展前同步码的方法。同步的方法包括发送两部分的前导码序列。前导序列包括被配置为用于时钟同步的快速锁定模式（FLP）的一个或多个重复，以及被配置为用于区分多个VLC拓扑的拓扑依赖模式（TDP）的一个或多个重复。用于发送扩展前同步码的方法包括在接收或空闲模式期间生成扩展前导码并发送扩展前同步码，以便维持可视性支持和更好的同步性能。

3. 发明授权

US08855496B2 Optical clock rate negotiation for supporting asymmetric clock rates for visible light communication 有权
标题翻译：用于支持可见光通信的非对称时钟速率的光时钟速率协商
公开(公告)号：US08855496B2
公开(公告)日：2014-10-07
申请号：US12975225
申请日：2010-12-21
申请人： Sridhar Rajagopal , Eran Pisek , Farooq Khan , Ying Li
发明人： Sridhar Rajagopal , Eran Pisek , Farooq Khan , Ying Li
IPC分类号： H04B10/00 , H04B10/114 , H04B10/116
CPC分类号： H04B10/116 , H04B10/1149
摘要： A method and apparatus conduct an optical clock rate negotiation to support asymmetric clock rates for visible light communication (VLC) in a VLC device. A first frame that includes a receiver clock rate supported by a first VLC device is transmitted at a predetermined clock rate. A response frame that includes a receiver clock rate supported by a second VLC device is received from the second VLC device. A transmission clock rate of the first VLC device is selected based on the response frame from the second VLC device. Subsequent frames for data communication are transmitted to the second VLC device at the selected transmission clock rate of the first device. Alternatively, when conducting optical clock negotiation in the PHY layer, multiple clock rates are supported within a single frame.
摘要翻译：一种方法和装置进行光时钟速率协商以支持VLC设备中可见光通信（VLC）的非对称时钟速率。以预定的时钟速率发送包括由第一VLC设备支持的接收机时钟速率的第一帧。从第二VLC设备接收包括由第二VLC设备支持的接收机时钟速率的响应帧。基于来自第二VLC设备的响应帧来选择第一VLC设备的传输时钟速率。用于数据通信的后续帧以所选择的第一设备的传输时钟速率发送到第二VLC设备。或者，当在PHY层中进行光时钟协商时，在单个帧内支持多个时钟速率。

4. 发明申请

US20100284690A1 APPARATUS AND METHOD FOR SUPPORT OF DIMMING IN VISIBLE LIGHT COMMUNICATION 有权
标题翻译：支持在可见光通信中进行调光的装置和方法
公开(公告)号：US20100284690A1
公开(公告)日：2010-11-11
申请号：US12577548
申请日：2009-10-12
申请人： Sridhar Rajagopal , Ying Li
发明人： Sridhar Rajagopal , Ying Li
IPC分类号： H04J14/00 , H04B10/02
CPC分类号： H04B10/116 , H04B10/1149
摘要： A method and system for visible light communication (VLC) for use in a dimmable lighting environment is provided. The method includes transmitting data using light from at least one light source, a brightness of the light reduced below a maximum level. The method also includes compensating or accommodating for the reduced brightness of the light at a VLC circuitry to maintain communication. The method further includes transmitting data to at least one VLC receiver using the light from the at least one light source.
摘要翻译：提供了一种用于可调光照明环境中的可见光通信（VLC）的方法和系统。该方法包括使用来自至少一个光源的光发射数据，光的亮度降低到最大水平以下。该方法还包括补偿或适应在VLC电路处的光的降低的亮度以保持通信。该方法还包括使用来自至少一个光源的光将数据发送到至少一个VLC接收机。

5. 发明授权

US08107825B2 Apparatus and method for support of dimming in visible light communication 有权
标题翻译：用于支持可见光通信中的调光的装置和方法
公开(公告)号：US08107825B2
公开(公告)日：2012-01-31
申请号：US12577548
申请日：2009-10-12
申请人： Sridhar Rajagopal , Ying Li
发明人： Sridhar Rajagopal , Ying Li
IPC分类号： H04B10/00
CPC分类号： H04B10/116 , H04B10/1149
摘要： A method and system for visible light communication (VLC) for use in a dimmable lighting environment is provided. The method includes transmitting data using light from at least one light source, a brightness of the light reduced below a maximum level. The method also includes compensating or accommodating for the reduced brightness of the light at a VLC circuitry to maintain communication. The method further includes transmitting data to at least one VLC receiver using the light from the at least one light source.
摘要翻译：提供了一种用于可调光照明环境中的可见光通信（VLC）的方法和系统。该方法包括使用来自至少一个光源的光发射数据，光的亮度降低到最大水平以下。该方法还包括补偿或适应在VLC电路处的光的降低的亮度以保持通信。该方法还包括使用来自至少一个光源的光将数据发送到至少一个VLC接收机。

6. 发明申请

US20110091220A1 APPARATUS AND METHOD FOR CHANNEL AGGREGATION AND GUARD CHANNEL INDICATION FOR VISIBLE LIGHT COMMUNICATION 有权
标题翻译：用于可见光通信的信道聚合和保护信道指示的装置和方法
公开(公告)号：US20110091220A1
公开(公告)日：2011-04-21
申请号：US12895225
申请日：2010-09-30
申请人： Sridhar Rajagopal , Farooq Khan , Ying Li , Jaeseung Son
发明人： Sridhar Rajagopal , Farooq Khan , Ying Li , Jaeseung Son
IPC分类号： H04B10/00
CPC分类号： H04B10/116 , H04B10/1149
摘要： A method, apparatus, and a non-transitory computer readable storage medium for supporting visible light communication (VLC) exchanges bitmaps for capabilities field exchange in a media access control (MAC) layer during link establishment and association with other VLC-enabled devices. An aggregation bitmap is generated to indicate whether a visible light communication (VLC) transmitter of a first device uses at least one aggregated band that comprises multiple active frequency bands. The aggregation bitmap is transmitted in a capabilities information exchange (CIE) signal to a second device. A guard bitmap that identifies a set of guard frequency bands is also generated and transmitted in the CIE signal. Each guard frequency band indicates leakage transmission from the VLC transmitter.
摘要翻译：用于支持可见光通信（VLC）的方法，装置和非暂时计算机可读存储介质在与其他支持VLC的设备建立链接期间在媒体访问控制（MAC）层中交换位图以进行能力场交换。生成聚合位图以指示第一设备的可见光通信（VLC）发射机是否使用包括多个活动频带的至少一个聚合频带。聚合位图在能力信息交换（CIE）信号中被发送到第二设备。识别一组保护频带的保护位图也被生成并在CIE信号中发送。每个保护频带表示来自VLC发射机的泄漏传输。

7. 发明申请

US20110026917A1 METHODS AND APPARATUS FOR FAST AND ENERGY-EFFICIENT LINK RECOVERY IN A VISIBLE LIGHT COMMUNICATION (VLC) SYSTEM 有权
标题翻译：可视光通信（VLC）系统中快速和有效链路恢复的方法和设备
公开(公告)号：US20110026917A1
公开(公告)日：2011-02-03
申请号：US12838240
申请日：2010-07-16
申请人： Ying Li , Sridhar Rajagopal
发明人： Ying Li , Sridhar Rajagopal
IPC分类号： H04J14/00
CPC分类号： H04W76/19 , H04W84/10 , Y02D70/00
摘要： A visible light communication (VLC) device is provided for use in a VLC system. The VLC device detect a trigger condition indicating a failure of a VLC link associated with first allocated resources used to communicate with a second VLC device. In response to the detection, the VLC device terminates on the first allocated resources transmission of data to the second VLC device and transmits a fast link recovery (FLR) signal using the first allocated resources. The VLC device receives a fast link recovery response (FLR RSP) signal indicating the second VLC device received the FLR signal and, in response, the VLC device resumes transmission of data to the second VLC device.
摘要翻译：提供可见光通信（VLC）设备用于VLC系统。 VLC设备检测指示与用于与第二VLC设备通信的第一分配资源相关联的VLC链路的故障的触发条件。响应于检测，VLC设备在第一分配的资源数据到第二VLC设备上终止并且使用第一分配的资源发送快速链路恢复（FLR）信号。 VLC设备接收指示第二VLC设备接收到FLR信号的快速链路恢复响应（FLR RSP）信号，并且作为响应，VLC设备恢复向第二VLC设备的数据传输。

8. 发明授权

US08774142B2 Flexible and integrated frame structure design for supporting multiple topologies with visible light communication 有权
标题翻译：灵活和集成的框架结构设计，支持可见光通信的多种拓扑结构
公开(公告)号：US08774142B2
公开(公告)日：2014-07-08
申请号：US12875518
申请日：2010-09-03
申请人： Sridhar Rajagopal , Doyoung Kim , Ying Li , Farooq Khan
发明人： Sridhar Rajagopal , Doyoung Kim , Ying Li , Farooq Khan
IPC分类号： H04W4/00 , H04B7/00 , H04J3/26 , H04L12/413 , H04L12/403
CPC分类号： H04B10/116 , H04B10/114 , H04L69/324
摘要： For use in a visible light communication (VLC) network, a system and method for communicating a plurality of medium access control (MAC) frames. The method includes providing a single frame structure to support a plurality of topologies, the plurality of topologies including peer-to-peer, broadcast, star and visibility topologies. The method also includes transmitting a plurality of frames comprising a plurality of frame types, the plurality of frame types comprising data, beacon, command, acknowledgement, and color-visibility-dimming (CVD) frames.
摘要翻译：用于可见光通信（VLC）网络中的用于传送多个介质访问控制（MAC）帧的系统和方法。该方法包括提供单个帧结构以支持多个拓扑，所述多个拓扑包括点对点，广播，星形和可视性拓扑。该方法还包括发送包括多个帧类型的多个帧，所述多个帧类型包括数据，信标，命令，确认和颜色可见度调光（CVD）帧。

9. 发明申请

US20110064405A1 FLEXIBLE AND INTEGRATED FRAME STRUCTURE DESIGN FOR SUPPORTING MULTIPLE TOPOLOGIES WITH VISIBLE LIGHT COMMUNICATION 有权
标题翻译：灵活和集成的框架结构设计，支持具有可见光通信的多个拓扑
公开(公告)号：US20110064405A1
公开(公告)日：2011-03-17
申请号：US12875518
申请日：2010-09-03
申请人： Sridhar Rajagopal , Doyoung Kim , Ying Li , Farooq Khan
发明人： Sridhar Rajagopal , Doyoung Kim , Ying Li , Farooq Khan
IPC分类号： H04J14/00 , H04B10/00
CPC分类号： H04B10/116 , H04B10/114 , H04L69/324
摘要： For use in a visible light communication (VLC) network, a system and method for communicating a plurality of medium access control (MAC) frames. The method includes providing a single frame structure to support a plurality of topologies, the plurality of topologies including peer-to-peer, broadcast, star and visibility topologies. The method also includes transmitting a plurality of frames comprising a plurality of frame types, the plurality of frame types comprising data, beacon, command, acknowledgement, and color-visibility-dimming (CVD) frames.
摘要翻译：用于可见光通信（VLC）网络中的用于传送多个介质访问控制（MAC）帧的系统和方法。该方法包括提供单个帧结构以支持多个拓扑，所述多个拓扑包括点对点，广播，星形和可视性拓扑。该方法还包括发送包括多个帧类型的多个帧，所述多个帧类型包括数据，信标，命令，确认和颜色可见度调光（CVD）帧。

10. 发明申请

US20100272193A1 DATA COMMUNICATION USING 2D BAR CODES 有权
标题翻译：使用2D BAR代码的数据通信
公开(公告)号：US20100272193A1
公开(公告)日：2010-10-28
申请号：US12561015
申请日：2009-09-16
申请人： Farooq Khan , Jiann-An Tsai , Sridhar Rajagopal , Bill Semper , Zhouyue Pi , Ying Li
发明人： Farooq Khan , Jiann-An Tsai , Sridhar Rajagopal , Bill Semper , Zhouyue Pi , Ying Li
IPC分类号： H04L27/00
CPC分类号： H04L1/0075 , H04L1/0041 , H04L1/1812
摘要： A Two-Dimensional (2D) code receiver and transmitter, and methods for their operation in a 2D code communication system, are provided. The method for operating the 2D code receiver includes receiving a sequence of 2D codes from a 2D code transmitter having data encoded therein, wherein the 2D codes of the sequence are received in succession, and decoding the received a sequence of 2D codes into the data.
摘要翻译：提供二维（2D）码接收机和发射机及其在二维码通信系统中的操作方法。用于操作2D代码接收器的方法包括从具有其中编码的数据的2D代码发送器接收2D代码序列，其中序列的2D代码被连续地接收，并且将接收的2D代码序列解码为数据。

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