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公开(公告)号：US09793931B2
公开(公告)日：2017-10-17
申请号：US13520382
申请日：2010-01-15
Applicant: Paul Gothard Knutson , Wen Gao , Benyuan Zhang , Hou-Shin Chen
Inventor： Paul Gothard Knutson , Wen Gao , Benyuan Zhang , Hou-Shin Chen
IPC: H04W16/14 , H04B1/04 , H04L12/66 , H04N21/436 , H04N21/4363 , H04W28/04
CPC classification number: H04B1/0475 , H04L12/66 , H04N21/43615 , H04N21/43637 , H04W28/04
Abstract: The invention relates to a wireless home gateway apparatus and methods of wirelessly delivering audio and/or video programs between a home gateway and a client and mitigating interference thereon. Specifically, the present invention relates to transmitting an audio/video program on two white space channels and alternately stopping transmission on one of said channels to search for external transmissions on the white space channel. The present invention permits the wireless home gateway to continuously transmit an audio/video program to a client while periodically searching for transmitters on each of the white space channels.
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公开(公告)号：US20100067564A1
公开(公告)日：2010-03-18
申请号：US11989978
申请日：2005-08-05
Applicant: Benyuan Zhang
Inventor： Benyuan Zhang
IPC: H04B1/707
CPC classification number: H04B1/7113 , H04B1/7095 , H04B1/7117 , H04B2201/70711
Abstract: An apparatus for performing a multipath search including a plurality of time-multiplexed chip correlators, wherein each of the plurality of time-multiplexed chip correlators has a pipeline, and further wherein each of the plurality of time-multiplexed chip correlators has a accumulation time is described. A method is described for performing a multipath search including performing multipath search slot processing, determining if a current multipath searching slot is a last multipath searching slot, if the current multipath searching slot is not the last multipath searching slot, then repeating the performing step, if the current multipath searching slot is the last multipath searching slot, then initializing a multipath searching slot index, determining if an non-coherent accumulation has been completed if the accumulation has not been completed then repeating all steps and if the accumulation has been completed, then search results are sorted to locate energy peaks corresponding to multipath locations.
Abstract translation: 一种用于执行包括多个时分多路复用芯片相关器的多路径搜索的装置，其中所述多个时分多路复用芯片相关器中的每一个具有流水线，并且其中所述多个时分多路复用芯片相关器中的每一个具有累加时间 描述。 描述了一种用于执行多路径搜索的方法，包括执行多路径搜索时隙处理，确定当前多径搜索时隙是否是最后的多路径搜索时隙，如果当前多路径搜索时隙不是最后的多路径搜索时隙，则重复执行步骤， 如果当前的多路径搜索时隙是最后的多路径搜索时隙，则初始化多路径搜索时隙索引，如果积累尚未完成则确定是否已经完成了非相干累积，然后重复所有步骤，并且如果累积已经完成， 然后搜索结果被排序以定位与多路径位置相对应的能量峰值。
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公开(公告)号：US20080317182A1
公开(公告)日：2008-12-25
申请号：US12087941
申请日：2006-01-27
Applicant: Benyuan Zhang , Paul Gothard Knutson
Inventor： Benyuan Zhang , Paul Gothard Knutson
IPC: H04B1/707
CPC classification number: H04B1/70775 , H04B1/70757 , H04B1/7095
Abstract: A multipath searcher and method includes a programmable decimation filter configured to adjust a sample rate of a received pilot signal. A plurality of correlators is configured to compare the received pilot signal to a reference code in a first mode and in a second mode. The first mode includes a low resolution search of a search window performed such that the plurality of correlators encompass an entire search window concurrently and the plurality of correlators receives a delayed reference code delayed to correspond with a portion of the search window in which a corresponding correlator performs correlation to identify peaks in the received pilot signal. The second mode includes a high resolution search of a refined search window only at or near identified peaks discovered in the first mode. The high resolution search is focused at the peak location by adjusting delays in the plurality of correlators.
Abstract translation: 多路径搜索器和方法包括可编程抽取滤波器，其被配置为调整接收到的导频信号的采样率。 多个相关器被配置为将接收到的导频信号与第一模式和第二模式中的参考码进行比较。 第一模式包括执行的搜索窗口的低分辨率搜索，使得多个相关器同时包含整个搜索窗口，并且多个相关器接收被延迟以与搜索窗口的一部分相对应的延迟参考码，其中相应的相关器 执行相关性以识别接收到的导频信号中的峰值。 第二模式包括仅在第一模式中发现的识别峰处或附近的精确搜索窗口的高分辨率搜索。 高分辨率搜索通过调整多个相关器中的延迟来聚焦在峰值位置。
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公开(公告)号：US08315314B2
公开(公告)日：2012-11-20
申请号：US12227112
申请日：2006-12-19
Applicant: Paul Gothard Knutson , Kumar Ramaswamy , Joshua Lawrence Koslov , Manoj Viswambharan , Benyuan Zhang , Wen Gao , Yik Chung Wu
Inventor： Paul Gothard Knutson , Kumar Ramaswamy , Joshua Lawrence Koslov , Manoj Viswambharan , Benyuan Zhang , Wen Gao , Yik Chung Wu
CPC classification number: H04N5/60 , H04L65/607 , H04N5/04 , H04N19/40 , H04N19/61 , H04N21/234309 , H04N21/2365 , H04N21/23805 , H04N21/2381 , H04N21/26275 , H04N21/2662 , H04N21/41407 , H04N21/4347 , H04N21/4363 , H04N21/4381 , H04N21/4436 , H04N21/6112
Abstract: An implementation provides a transmitter that separates sequential portions of data in a first set of data by time intervals allowing a power saving mode (1005). The transmitter transmits the sequential portions of data separated by respective time intervals having lengths configured to allow a receiver to enter and exit a power saving mode between receiving sequentially transmitted portions of data from the first set of data (1010). The transmitter separates sequential portions of data in a second set by time intervals that are not of sufficient length to allow a receiver to enter and exit a power saving mode during the time intervals (1015). The second set of data is then transmitted (1020).
Abstract translation: 实现提供了一种发射机，其通过允许省电模式（1005）的时间间隔来分离第一组数据中的数据的顺序部分。 发射机发送由具有被配置为允许接收机在从第一组数据（1010）接收顺序发送的数据部分之间进入和退出功率节省模式的具有长度的相应时间间隔分开的数据的顺序部分。 发射机以不足够长度的时间间隔分离第二组中的数据的顺序部分，以允许接收机在时间间隔（1015）期间进入和退出省电模式。 然后传送第二组数据（1020）。
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公开(公告)号：US20100283918A1
公开(公告)日：2010-11-11
申请号：US12735250
申请日：2007-12-27
Applicant: Benyuan Zhang
Inventor： Benyuan Zhang
CPC classification number: H04L27/0014 , H04L27/06 , H04L2027/0038 , H04L2027/0053 , H04L2027/0093 , H04N5/04 , H04N5/4401 , H04N19/44 , H04N19/89
Abstract: A receiver is an ATSC receiver having at least two modes of operation. In a first mode of operation the ATSC receiver determines an initial carrier frequency offset with respect to a carrier frequency in the received signal as a function of a field sync signal in the received signal. In a second mode of operation, the ATSC receiver tracks a carrier frequency in a received signal using a carrier tracking loop.
Abstract translation: 接收机是具有至少两种操作模式的ATSC接收机。 在第一操作模式中，ATSC接收机根据接收信号中的场同步信号确定相对于接收信号中的载波频率的初始载波频率偏移。 在第二种操作模式中，ATSC接收机使用载波跟踪环来跟踪接收信号中的载波频率。
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Patent Agency Ranking
公开(公告)号：US20100220603A1
公开(公告)日：2010-09-02
申请号：US11922644
申请日：2005-06-24
Applicant: Benyuan Zhang , Paul Gothard Knutson
Inventor： Benyuan Zhang , Paul Gothard Knutson
IPC: H04L12/26
CPC classification number: H04B1/7113 , H04B1/7117
Abstract: A method and apparatus for identifying valid multipath energy peaks are described including locating an energy peak in a profile of energy peaks, categorizing the located energy peak based on a plurality of thresholds and processing energy peaks in at least one of the categories of located energy peaks. The method and apparatus further includes removing a direct current value component from each value in the profile of energy peaks, calculating a noise floor for a multipath searching window and determining a first threshold and a second threshold. The step and means for categorizing further includes determining if the located energy peak exceeds the first threshold, labeling the located energy peak as a false alarm, if the located energy peak does not exceed the first threshold, determining if the located energy peak exceeds the second threshold and labeling the located energy peak as confident, if the located energy peak exceeds the second threshold.
Abstract translation: 描述了用于识别有效的多径能量峰值的方法和装置，包括将能量峰值定位在能量峰值分布中，基于多个阈值对定位的能量峰值进行分类，并且在至少一个定位的能量峰值类别中处理能量峰值 。 所述方法和装置还包括从能量峰值分布图中的每个值中去除直流电流值分量，计算多路径搜索窗口的本底噪声并确定第一阈值和第二阈值。 用于进一步分类的步骤和手段还包括确定所定位的能量峰值是否超过第一阈值，如果定位的能量峰值不超过第一阈值，则将定位的能量峰值标记为假警报，确定所定位的能量峰值是否超过第二阈值 如果定位的能量峰值超过第二阈值，则将所定位的能量峰值置于可信度上。
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7.发明申请公开(公告)号：US20150065185A1
公开(公告)日：2015-03-05
申请号：US13520382
申请日：2010-01-15
Applicant: Paul Gothard Knutson , Wen Gao , Benyuan Zhang , Hou-Shin Chen
Inventor： Paul Gothard Knutson , Wen Gao , Benyuan Zhang , Hou-Shin Chen
CPC classification number: H04B1/0475 , H04L12/66 , H04N21/43615 , H04N21/43637 , H04W28/04
Abstract: The invention relates to a wireless home gateway apparatus and methods of wirelessly delivering audio and/or video programs between a home gateway and a client and mitigating interference thereon. Specifically, the present invention relates to transmitting an audio/video program on two white space channels and alternately stopping transmission on one of said channels to search for external transmissions on the white space channel. The present invention permits the wireless home gateway to continuously transmit an audio/video program to a client while periodically searching for transmitters on each of the white space channels.
Abstract translation: 本发明涉及无线家庭网关设备和在家庭网关和客户端之间无线地传送音频和/或视频节目的方法，并减轻其上的干扰。 具体而言，本发明涉及在两个白色空间信道上发送音频/视频节目，并且交替地停止在所述信道之一上的传输以搜索空白信道上的外部传输。 本发明允许无线家庭网关在每个白色空间信道周期性地搜索发射机的同时，将音频/视频节目连续发送到客户端。
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公开(公告)号：US08081576B2
公开(公告)日：2011-12-20
申请号：US11922644
申请日：2005-06-24
Applicant: Benyuan Zhang , Paul Gothard Knutson
Inventor： Benyuan Zhang , Paul Gothard Knutson
CPC classification number: H04B1/7113 , H04B1/7117
Abstract: A method and apparatus for identifying valid multipath energy peaks are described including locating an energy peak in a profile of energy peaks, categorizing the located energy peak based on a plurality of thresholds and processing energy peaks in at least one of the categories of located energy peaks. The method and apparatus further includes removing a direct current value component from each value in the profile of energy peaks, calculating a noise floor for a multipath searching window and determining a first threshold and a second threshold. The step and means for categorizing further includes determining if the located energy peak exceeds the first threshold, labeling the located energy peak as a false alarm, if the located energy peak does not exceed the first threshold, determining if the located energy peak exceeds the second threshold and labeling the located energy peak as confident, if the located energy peak exceeds the second threshold.
Abstract translation: 描述了用于识别有效的多径能量峰值的方法和装置，包括将能量峰值定位在能量峰值分布中，基于多个阈值对定位的能量峰值进行分类，并且在至少一个定位的能量峰值类别中处理能量峰值 。 所述方法和装置还包括从能量峰值分布图中的每个值中去除直流电流值分量，计算多路径搜索窗口的本底噪声并确定第一阈值和第二阈值。 用于进一步分类的步骤和手段还包括确定所定位的能量峰值是否超过第一阈值，如果定位的能量峰值不超过第一阈值，则将定位的能量峰值标记为假警报，确定所定位的能量峰值是否超过第二阈值 如果定位的能量峰值超过第二阈值，则将所定位的能量峰值置于可信度上。
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9.发明申请公开(公告)号：US20100242078A1
公开(公告)日：2010-09-23
申请号：US12452160
申请日：2008-06-20
Applicant: Wen Gao , Benyuan Zhang , Paul Knutson
Inventor： Wen Gao , Benyuan Zhang , Paul Knutson
IPC: H04N7/173
CPC classification number: H04L27/02 , H03M13/1102 , H03M13/6356 , H03M13/6362 , H04H20/22 , H04H20/426 , H04H20/57 , H04H20/95 , H04H60/43 , H04L1/0041 , H04L1/0059 , H04L1/0065 , H04L1/0067 , H04L1/0071 , H04L1/0072 , H04L25/03343 , H04N21/242 , H04N21/4302
Abstract: An Advanced Television Systems Committee Digital Television (ATSC DTV) transmitter transmits a digital multiplex that includes a legacy DTV channel and a mobile DTV channel. The mobile DTV channel is conveyed in mobile packets that comprise mobile data and additional mobile training information. A mobile packet comprises 207 bytes wherein 2 bytes are header information, 20 bytes are Reed-Solomon (RS) parity information and 185 bytes convey mobile data and mobile training information. The mobile training information is inserted into mobile packets such that the additional training information appears in contiguous positions after convolutional interleaving.
Abstract translation: 高级电视系统委员会数字电视（ATSC DTV）发射机发送包括传统DTV信道和移动DTV信道的数字多路复用。 在包括移动数据和附加的移动训练信息的移动分组中传送移动DTV信道。 移动分组包括207字节，其中2个字节是报头信息，20个字节是里德 - 所罗门（RS）奇偶校验信息，185个字节传送移动数据和移动训练信息。 将移动训练信息插入到移动分组中，使得附加训练信息在卷积交织之后出现在相邻位置。
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公开(公告)号：US08340159B2
公开(公告)日：2012-12-25
申请号：US12087941
申请日：2006-01-27
Applicant: Benyuan Zhang , Paul Gothard Knutson
Inventor： Benyuan Zhang , Paul Gothard Knutson
IPC: H04B1/00
CPC classification number: H04B1/70775 , H04B1/70757 , H04B1/7095
Abstract: A multipath searcher and method includes a programmable decimation filter configured to adjust a sample rate of a received pilot signal. A plurality of correlators is configured to compare the received pilot signal to a reference code in a first mode and in a second mode. The first mode includes a low resolution search of a search window performed such that the plurality of correlators encompass an entire search window concurrently and the plurality of correlators receives a delayed reference code delayed to correspond with a portion of the search window in which a corresponding correlator performs correlation to identify peaks in the received pilot signal. The second mode includes a high resolution search of a refined search window only at or near identified peaks discovered in the first mode. The high resolution search is focused at the peak location by adjusting delays in the plurality of correlators.
Abstract translation: 多路径搜索器和方法包括可编程抽取滤波器，其被配置为调整接收到的导频信号的采样率。 多个相关器被配置为将接收的导频信号与第一模式和第二模式中的参考码进行比较。 第一模式包括执行的搜索窗口的低分辨率搜索，使得多个相关器同时包含整个搜索窗口，并且多个相关器接收被延迟以与搜索窗口的一部分相对应的延迟参考码，其中相应的相关器 执行相关性以识别接收到的导频信号中的峰值。 第二模式包括仅在第一模式中发现的识别峰处或附近的精确搜索窗口的高分辨率搜索。 高分辨率搜索通过调整多个相关器中的延迟来聚焦在峰值位置。
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