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11. 发明申请

WO2002093866A3 TRANSCODING MULTIMEDIA INFORMATION WITHIN A NETWORK COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2002093866A3
公开(公告)日：2002-11-21
申请号：PCT/US2002/015081
申请日：2002-05-10
申请人： BYTEMOBILE , CHOU, Jim , RAMCHANDRAN, Kannan
发明人： CHOU, Jim , RAMCHANDRAN, Kannan
IPC分类号： H04L29/06
摘要： Multimedia information communicated between a transmitter and a receiver may be transcoded by intercepting the multimedia information within a network communication system. The available transmission rate of the downlink channel may be estimated by, for example, calculating a ratio of the smoothed round trip time of packets communicated to the receiver and a smoothed congestion window associated with the downlink channel. If the transmission rate at which the multimedia information is encoded is greater than the available transmission rate, the multimedia information may be transcoded to conform the multimedia information to the available transmission rate. The transcoded multimedia information may then be transmitted to the receiver over the downlink channel using a transmission timer.

12. 发明申请

WO2002093866A2 TRANSCODING MULTIMEDIA INFORMATION WITHIN A NETWORK COMMUNICATION SYSTEM 审中-公开
标题翻译：网络通信系统中的多播多媒体信息
公开(公告)号：WO2002093866A2
公开(公告)日：2002-11-21
申请号：PCT/US2002/015081
申请日：2002-05-10
申请人： BYTEMOBILE , CHOU, Jim , RAMCHANDRAN, Kannan
发明人： CHOU, Jim , RAMCHANDRAN, Kannan
IPC分类号： H04L29/00
CPC分类号： H04W4/18 , H04L29/06 , H04L29/06027 , H04L65/4084 , H04L65/605 , H04L69/08
摘要： Multimedia information communicated between a transmitter and a receiver may be transcoded by intercepting the multimedia information within a network communication system. The available transmission rate of the downlink channel may be estimated by, for example, calculating a ratio of the smoothed round trip time of packets communicated to the receiver and a smoothed congestion window associated with the downlink channel. If the transmission rate at which the multimedia information is encoded is greater than the available transmission rate, the multimedia information may be transcoded to conform the multimedia information to the available transmission rate. The transcoded multimedia information may then be transmitted to the receiver over the downlink channel using a transmission timer.
摘要翻译：通过在网络通信系统内拦截多媒体信息，可以在发射机和接收机之间传送的多媒体信息进行转码。可以通过例如计算传送到接收机的分组的平滑的往返时间和与下行链路信道相关联的平滑拥塞窗口的比率来估计下行链路信道的可用传输速率。如果多媒体信息被编码的传输速率大于可用的传输速率，则可以对多媒体信息进行转码以使多媒体信息符合可用的传输速率。然后可以使用传输定时器通过下行链路信道将经代码转换的多媒体信息发送到接收机。

13. 发明申请

WO2004086631A2 METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING SIDE INFORMATION FOR MULTIMEDIA TRANSMISSION 审中-公开
标题翻译：用于编码和解码多媒体传输侧信息的方法，装置和系统
公开(公告)号：WO2004086631A2
公开(公告)日：2004-10-07
申请号：PCT/US2004/008950
申请日：2004-03-23
申请人： QUALCOMM INCORPORATED , GARUDADRI, Harinath , RAMCHANDRAN, Kannan
发明人： GARUDADRI, Harinath , RAMCHANDRAN, Kannan
IPC分类号： H03M13/00
CPC分类号： H03M13/6513 , H03M13/29 , H04N19/37
摘要： According to one aspect of the present invention, a method and apparatus is provided in which input data (e.g., input video data) is encoded in accordance with a first coding standard (e.g., MPEG-4) to generate encoded data. The input data is also encoded based on a reconstruction of the input data to generate encoded side information associated with the input data. The encoded data are transmitted to a destination (e.g., a decoding subsystem) over a first channel and the encoded side information are transmitted to the destination over a second channel. The encoded data and the encoded side information are decoded and combined at the destination to generate output data.
摘要翻译：根据本发明的一个方面，提供了一种方法和装置，其中根据第一编码标准（例如，MPEG-4）对输入数据（例如，输入视频数据）进行编码以产生编码数据。输入数据也是基于输入数据的重构来编码的，以产生与输入数据相关联的编码侧信息。经编码的数据通过第一信道发送到目的地（例如，解码子系统），经编码的侧信息通过第二信道发送到目的地。编码数据和编码侧信息在目的地被解码和组合以产生输出数据。

14. 发明申请

WO2004023703A2 ENCODING AND DECODING OF DIGITAL DATA USING CUES DERIVABLE AT A DECODER 审中-公开
标题翻译：使用解码器解码数字数据的编码和解码
公开(公告)号：WO2004023703A2
公开(公告)日：2004-03-18
申请号：PCT/US2003/027750
申请日：2003-09-05
申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA , PURI, Rohit , RAMCHANDRAN, Kannan
发明人： PURI, Rohit , RAMCHANDRAN, Kannan
IPC分类号： H04L
CPC分类号： H04N19/94 , H04N19/12 , H04N19/124 , H04N19/127 , H04N19/134 , H04N19/154 , H04N19/166 , H04N19/18 , H04N19/46 , H04N19/523 , H04N19/61 , H04N19/63
摘要： Encoding digital data by using cues at a decoder. An encoder selects an index to indicate a target codeword from the complete space of all codewords to a decoder. The index identifies a group or a set of codewords that contain the target codeword. The sets are represented by a bit-length thus achieving compression. Two or more codewords in such a set are separated by a predetermined distance and all such sets of codewords considered together form the complete space of all codewords. The encoder sends syntax information, including the index, to specify the decoding. The decoder then uses a set of candidate cues in a comparison operation to determine the target codeword from the indexed set. Processing complexity can be allocated among the encoder, decoder and other possible devices as, for example, in a digital network.
摘要翻译：在解码器上使用提示对数字数据进行编码。编码器从所有码字的完整空间中选择索引以指示目标码字到解码器。索引标识包含目标码字的组或一组码字。这些集合由位长度表示，从而实现压缩。这样的集合中的两个或更多个码字被隔开预定的距离，并且所有这些一起考虑的码字集合形成所有码字的完整空间。编码器发送语法信息，包括索引，以指定解码。然后，解码器在比较操作中使用一组候选提示来确定来自索引集合的目标码字。处理复杂度可以在编码器，解码器和其他可能的设备中分配，例如在数字网络中。

15. 发明授权

EP2252982B1 LOCALIZING TAGGED ASSETS USING MODULATED BACKSCATTER 有权
标题翻译：标记值对象使用调制BACK吊具的国产化
公开(公告)号：EP2252982B1
公开(公告)日：2016-07-13
申请号：EP08726860.3
申请日：2008-03-14
申请人： Checkpoint Systems, Inc.
发明人： WILD, Ben , TKACHENKO, Artem , RAMCHANDRAN, Kannan , MADHOW, Upamanyu
IPC分类号： G08B13/14 , G01S13/75 , G01S13/87 , G08C21/00
CPC分类号： G08C21/00 , G01S5/02 , G01S5/0252 , G01S11/02 , G01S13/756 , G01S13/876

16. 发明授权

EP2332093B1 RFID REPEATER FOR RANGE EXTENSION IN MODULATED BACKSCATTER SYSTEMS 有权
标题翻译： RFID转发器，用于在调制背散射系统的范围扩展
公开(公告)号：EP2332093B1
公开(公告)日：2012-04-04
申请号：EP09792138.1
申请日：2009-09-01
申请人： Checkpoint Systems, Inc.
发明人： WILD, Ben J. , MADHOW, Upamanyu , RAMCHANDRAN, Kannan
IPC分类号： G06K7/00
CPC分类号： G06K7/0008
摘要： A backscatter tag system including a tag having tag circuitry and a reader for transmitting a command signal to the tag includes an energizer node for transmitting an energy signal to the tag to energize the tag and provide energy for operating the tag circuitry and for emitting a backscatter signal by the tag. The energizer node includes an energizer receiver for receiving the command signal from the reader to provide a received command signal and an energizer transmitter for transmitting the received command signal from the reader to the tag. The energizer node transmits both the energy signal and the received command signal to the tag. The energizer transmitter can transmit a sinusoidal signal, a frequency hopping signal, a spread spectrum signal, or a frequency shifted signal to the tag. The backscatter tag circuitry can include a processor.

17. 发明公开

EP2332093A1 RFID REPEATER FOR RANGE EXTENSION IN MODULATED BACKSCATTER SYSTEMS 有权
标题翻译： RFID转发器，用于在调制背散射系统的范围扩展
公开(公告)号：EP2332093A1
公开(公告)日：2011-06-15
申请号：EP09792138.1
申请日：2009-09-01
申请人： Checkpoint Systems, Inc.
发明人： WILD, Ben J. , MADHOW, Upamanyu , RAMCHANDRAN, Kannan
IPC分类号： G06K7/00
CPC分类号： G06K7/0008
摘要： A backscatter tag system including a tag having tag circuitry and a reader for transmitting a command signal to the tag includes an energizer node for transmitting an energy signal to the tag to energize the tag and provide energy for operating the tag circuitry and for emitting a backscatter signal by the tag. The energizer node includes an energizer receiver for receiving the command signal from the reader to provide a received command signal and an energizer transmitter for transmitting the received command signal from the reader to the tag. The energizer node transmits both the energy signal and the received command signal to the tag. The energizer transmitter can transmit a sinusoidal signal, a frequency hopping signal, a spread spectrum signal, or a frequency shifted signal to the tag. The backscatter tag circuitry can include a processor.

18. 发明公开

EP2252982A1 LOCALIZING TAGGED ASSETS USING MODULATED BACKSCATTER 有权
标题翻译：标记值对象使用调制BACK吊具的国产化
公开(公告)号：EP2252982A1
公开(公告)日：2010-11-24
申请号：EP08726860.3
申请日：2008-03-14
申请人： Checkpoint Systems, Inc.
发明人： WILD, Ben , TKACHENKO, Artem , RAMCHANDRAN, Kannan , MADHOW, Upamanyu
IPC分类号： G08B13/14
CPC分类号： G08C21/00 , G01S5/02 , G01S5/0252 , G01S11/02 , G01S13/756 , G01S13/876
摘要： Methods and systems for localizing an asset using the modulated backscatter from an asset tag and one or more marker tags are described. The system includes the reader, a location module and one or more marker tags. The location estimates for the asset tag are based partially on a prior knowledge of the location of each of the one or more marker tags. The location for each marker tag may be stored in a database. The location module determines a location estimate for the asset tag using the estimated parameters of the modulated backscatter signals received from one or more marker tags and from the asset tag. Using the known locations of the marker tags, a location estimate of the asset tag can be determined. The location estimate may be a relative location, an absolute location, and/or may be a zone including the marker tags. A mobile reader using the marker tags can localize asset tags throughout a large area and may, for example, take an inventory of assets throughout the large area.

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