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1. 发明申请

US20100195580A1 WIRELESS LOCAL AREA NETWORK USING TV WHITE SPACE SPECTRUM AND LONG TERM EVOLUTION SYSTEM ARCHITECTURE 失效
标题翻译：使用电视白天空间频谱和长时间演进系统架构的无线局域网
公开(公告)号：US20100195580A1
公开(公告)日：2010-08-05
申请号：US12363319
申请日：2009-01-30
申请人： Vajira Samarasooriya , Shiquan Wu
发明人： Vajira Samarasooriya , Shiquan Wu
IPC分类号： H04W74/00
CPC分类号： H04W16/14 , H04W4/18 , H04W28/06 , H04W84/12 , H04W88/10
摘要： A wireless local area network (WLAN) gateway may use a modified LTE radio frame and TV white space spectrum for data communications in a wireless local area network. In the modified LTE downlink frame a predefined subset of the pilot (reference) symbol subcarriers are used to carry information to data sinks in the WLAN.
摘要翻译：无线局域网（WLAN）网关可以使用经修改的LTE无线电帧和TV空白频谱用于无线局域网中的数据通信。在经修改的LTE下行链路帧中，导频（参考）符号子载波的预定义子集用于将信息携带到WLAN中的数据宿。

2. 发明授权

US08976302B2 Radio frequency front end for television band receiver and spectrum sensor 有权
标题翻译：射频前端用于电视频段接收机和频谱传感器
公开(公告)号：US08976302B2
公开(公告)日：2015-03-10
申请号：US13429205
申请日：2012-03-23
申请人： Neil Birkett , Vajira Samarasooriya , Jung Yee
发明人： Neil Birkett , Vajira Samarasooriya , Jung Yee
IPC分类号： H04N5/50
CPC分类号： H04N5/4401 , H04N5/46 , H04N5/50 , H04N21/4263 , H04N21/4383
摘要： A radio frequency front end for a television band receiver and spectrum sensor includes a low noise amplifier that amplifies a received signal output of a radio frequency antenna connected to the radio frequency front end, a pin diode attenuator circuit that selectively attenuates an output of the low noise amplifier, and a buffer amplifier that amplifies an output of the pin diode attenuator.
摘要翻译：用于电视频带接收机和频谱传感器的射频前端包括放大连接到射频前端的射频天线的接收信号输出的低噪声放大器，选择性地衰减低频输出的引脚二极管衰减器电路噪声放大器和放大pin二极管衰减器的输出的缓冲放大器。

3. 发明授权

US08848644B2 Wireless local area network using TV white space spectrum and long term evolution system architecture 有权
标题翻译：无线局域网使用电视空白频谱和长期演进系统架构
公开(公告)号：US08848644B2
公开(公告)日：2014-09-30
申请号：US13597607
申请日：2012-08-29
申请人： Vajira Samarasooriya , Shiquan Wu
发明人： Vajira Samarasooriya , Shiquan Wu
IPC分类号： H04W4/00 , H04J11/00 , H04L27/28 , H04W16/14 , H04W4/18 , H04W28/06 , H04W88/10
CPC分类号： H04W16/14 , H04W4/18 , H04W28/06 , H04W84/12 , H04W88/10
摘要： A wireless local area network (WLAN) gateway uses a LTE radio frame and TV white space spectrum for data communications in a wireless local area network. In the LTE downlink frame, a predefined subset of the pilot (reference) symbol positions are used to carry information to data sinks in the WLAN.
摘要翻译：无线局域网（WLAN）网关使用LTE无线电帧和TV空白频谱用于无线局域网中的数据通信。在LTE下行链路帧中，使用导频（参考）符号位置的预定义子集来携带信息到WLAN中的数据宿。

4. 发明授权

US08823806B2 Method and apparatus for television band pilot sensing 有权
标题翻译：电视频带导频感测的方法和装置
公开(公告)号：US08823806B2
公开(公告)日：2014-09-02
申请号：US13030749
申请日：2011-02-18
申请人： Vajira Samarasooriya , Daniel Payer , Jung Yee
发明人： Vajira Samarasooriya , Daniel Payer , Jung Yee
IPC分类号： H04N17/02
CPC分类号： H04N17/004 , H04L25/03828 , H04N5/50 , H04N5/52 , H04N21/4383 , H04N21/6131
摘要： A DTV pilot sensor generates DTV pilot tone detection decisions associated with monitored television band channels without knowledge or estimation of a noise level of the monitored channel.
摘要翻译： DTV导频传感器产生与监视的电视频带信道相关联的DTV导频音检测决策，而不知道或估计所监视的频道的噪声电平。

5. 发明授权

US08792589B2 System and method for protecting transmissions of wireless microphones operating in television band white space 有权
标题翻译：用于保护在电视频带空白中操作的无线麦克风的传输的系统和方法
公开(公告)号：US08792589B2
公开(公告)日：2014-07-29
申请号：US12779782
申请日：2010-05-13
申请人： Shiquan Wu , Vajira Samarasooriya
发明人： Shiquan Wu , Vajira Samarasooriya
IPC分类号： H04N5/455
CPC分类号： H04N17/004 , H03J1/0091 , H04B1/76 , H04H60/41 , H04H60/43 , H04N5/50
摘要： A wireless microphone system broadcasts a pilot tone at the designated ATSC pilot position in the TV Band channel being used by the wireless microphone system. The pilot tone is a readily detectable waveform transmitted in the ATSC pilot position. The pilot tone can be generated by any one of: a standalone pilot tone generator; a pilot tone generator incorporated into a wireless microphone receiver; or, a pilot tone generator incorporated into a wireless microphone.
摘要翻译：无线麦克风系统在由无线麦克风系统使用的TV频道信道中的指定ATSC导频位置广播导频音。导频音是在ATSC导频位置发送的易于检测的波形。导频音可以由以下任何一种产生：独立导频音发生器; 并入无线麦克风接收机的导频音发生器; 或者组合到无线麦克风中的导频音发生器。

6. 发明申请

US20110280413A1 System and Method For Protecting Transmissions of Wireless Microphones Operating in Television Band White Space 有权
标题翻译：用于保护在电视频带空白中操作的无线麦克风的传输的系统和方法
公开(公告)号：US20110280413A1
公开(公告)日：2011-11-17
申请号：US12779782
申请日：2010-05-13
申请人： Shiquan Wu , Vajira Samarasooriya
发明人： Shiquan Wu , Vajira Samarasooriya
IPC分类号： H04B3/00 , H04N5/50 , H04N7/01
CPC分类号： H04N17/004 , H03J1/0091 , H04B1/76 , H04H60/41 , H04H60/43 , H04N5/50
摘要： A wireless microphone system broadcasts a pilot tone at the designated ATSC pilot position in the TV Band channel being used by the wireless microphone system. The pilot tone is a readily detectable waveform transmitted in the ATSC pilot position. The pilot tone can be generated by any one of: a standalone pilot tone generator; a pilot tone generator incorporated into a wireless microphone receiver; or, a pilot tone generator incorporated into a wireless microphone.
摘要翻译：无线麦克风系统在由无线麦克风系统使用的TV频道信道中的指定ATSC导频位置广播导频音。导频音是在ATSC导频位置发送的易于检测的波形。导频音可以由以下任何一种产生：独立导频音发生器; 并入无线麦克风接收机的导频音发生器; 或者组合到无线麦克风中的导频音发生器。

7. 发明申请

US20110043710A1 WHITE SPACE SPECTRUM SENSOR FOR TELEVISION BAND DEVICES 失效
标题翻译：用于电视带设备的白色空间光谱传感器
公开(公告)号：US20110043710A1
公开(公告)日：2011-02-24
申请号：US12543259
申请日：2009-08-18
申请人： Vajira Samarasooriya , Shiquan Wu
发明人： Vajira Samarasooriya , Shiquan Wu
IPC分类号： H04N5/50
CPC分类号： H04N5/50 , H03J1/0091 , H04L27/0006 , H04N21/42203 , H04N21/4345 , H04N21/4383 , H04W16/14
摘要： A television band device has DTV pilot signal detection logic that generates DTV pilot signal detection decisions associated with a monitored television channel. A wireless microphone detection logic generates wireless microphone detection decisions associated with the monitored television channel. A sensing manager receives DTV pilot signal detection decisions and the wireless microphone detection decisions and analyzes at least one the respective decisions to determine whether the monitored television channel is available white space.
摘要翻译：电视频带设备具有DTV导频信号检测逻辑，其产生与被监视的电视频道相关联的DTV导频信号检测决策。无线麦克风检测逻辑产生与所监视的电视频道相关联的无线麦克风检测决定。感测管理器接收DTV导频信号检测决策和无线麦克风检测决定并分析至少一个相应的决定以确定被监视的电视频道是否是可用的空白空间。

8. 发明申请

US20130103684A1 TV WHITE SPACE DEVICES USING STRUCTURED DATABASES 有权
标题翻译：电视使用结构化数据库的空白设备
公开(公告)号：US20130103684A1
公开(公告)日：2013-04-25
申请号：US13498106
申请日：2010-07-09
申请人： Jung Yee , Vajira Samarasooriya , Lingjie Li
发明人： Jung Yee , Vajira Samarasooriya , Lingjie Li
IPC分类号： G06F17/30
CPC分类号： G06F17/30289 , G06F17/30091 , G06F17/30345 , G06F17/30557 , H04W16/14 , H04W28/18 , H04W48/14
摘要： A two-level database structure for use by unlicensed TVBD devices operating in TV white space comprises a central database and local databases. The central database comprises two sub-database: the central licensed database which maintains information about all licensed TV devices and the central unlicensed database which maintains information about unlicensed wireless devices operating in TV spectrum. The local database is created by each TVBD device or TVBD network when it initiates and it stores information related to all transmitters in the local area including location, power transmission levels, operating schedule, sensing results, backup channel information. The local databases communicate with central database to query it about licensed usage of TV spectrum and register with central database. The local databases communicate with each other to exchange information about channel usage, sensing results, transmission patterns and other information that will allow the local databases to negotiate coexistence without central coordinator. The locally implemented negotiation prevents the overloading of the central database.
摘要翻译：用于在TV空白中工作的未经许可的TVBD设备使用的两级数据库结构包括中央数据库和本地数据库。中央数据库包括两个子数据库：中央许可数据库，其维护关于所有许可的电视设备的信息和中央非许可数据库，其维护关于在TV频谱中操作的未许可的无线设备的信息。每个TVBD设备或TVBD网络创建本地数据库，并且存储与本地区域中的所有发射机有关的信息，包括位置，功率传输级别，操作时间表，感测结果，备份信道信息。本地数据库与中央数据库进行通信，查询有关电视频谱的许可使用情况，并向中央数据库注册。本地数据库相互通信以交换关于信道使用，感测结果，传输模式和其他信息的信息，这些信息将允许本地数据库在没有中央协调器的情况下协商共存。本地实施的协商可以防止中央数据库的超载。

9. 发明授权

US08373759B2 White space spectrum sensor for television band devices 失效
标题翻译：用于电视频带设备的白色空间频谱传感器
公开(公告)号：US08373759B2
公开(公告)日：2013-02-12
申请号：US12543259
申请日：2009-08-18
申请人： Vajira Samarasooriya , Shiquan Wu
发明人： Vajira Samarasooriya , Shiquan Wu
IPC分类号： H04N17/00
CPC分类号： H04N5/50 , H03J1/0091 , H04L27/0006 , H04N21/42203 , H04N21/4345 , H04N21/4383 , H04W16/14
摘要： A television band device has DTV pilot signal detection logic that generates DTV pilot signal detection decisions associated with a monitored television channel. A wireless microphone detection logic generates wireless microphone detection decisions associated with the monitored television channel. A sensing manager receives DTV pilot signal detection decisions and the wireless microphone detection decisions and analyzes at least one the respective decisions to determine whether the monitored television channel is available white space.
摘要翻译：电视频带设备具有DTV导频信号检测逻辑，其产生与被监视的电视频道相关联的DTV导频信号检测决策。无线麦克风检测逻辑产生与所监视的电视频道相关联的无线麦克风检测决定。感测管理器接收DTV导频信号检测决策和无线麦克风检测决定并分析至少一个相应的决定以确定被监视的电视频道是否是可用的空白空间。

10. 发明申请

US20130018622A1 METHOD AND APPARATUS FOR DETECTING THE PRESENCE OF A DTV PILOT TONE IN A HIGH NOISE ENVIRONMENT 有权
标题翻译：用于检测高噪声环境中数字电视引导音的存在的方法和装置
公开(公告)号：US20130018622A1
公开(公告)日：2013-01-17
申请号：US13182172
申请日：2011-07-13
申请人： Vajira Samarasooriya , Daniel Payer , James S. Wight
发明人： Vajira Samarasooriya , Daniel Payer , James S. Wight
IPC分类号： G06F19/00 , G01R29/26
CPC分类号： H04B1/76 , H04N5/50
摘要： A DTV pilot tone is detected in a noisy environment by computing a power average of Fast Fourier Transform (FFT) output spectra of a received signal, finding a power peak in the averaged outputs, computing an adjustment parameter to center the power peak in a Discrete Fourier Transform bin of the averaged output spectra, applying the adjustment parameter to adjust the received signal, computing a coherent average of FFT output spectra of the adjusted signal, and, testing a power spectrum of the coherent average for the presence of the DTV pilot tone.
摘要翻译：在噪声环境中通过计算接收信号的快速傅里叶变换（FFT）输出频谱的功率平均值，找到平均输出中的功率峰值，计算调整参数以使功率峰值居中在离散值中，从而在噪声环境中检测DTV导频音平均输出光谱的傅立叶变换仓，应用调整参数调整接收信号，计算调整信号的FFT输出光谱的相干平均值，以及测试DTV导频音的存在的相干平均的功率谱。

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