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公开(公告)号：US20060038659A1
公开(公告)日：2006-02-23
申请号：US11130244
申请日：2005-05-17
申请人： Takeshi Takano , Tomohiko Taniguchi , Yasuyuki Oishi , Yoshinori Tanaka , Teruhisa Ninomiya , Nobuhisa Aoki , Yuichi Nakanishi
发明人： Takeshi Takano , Tomohiko Taniguchi , Yasuyuki Oishi , Yoshinori Tanaka , Teruhisa Ninomiya , Nobuhisa Aoki , Yuichi Nakanishi
IPC分类号： H04Q5/22
CPC分类号： G06K7/10356 , G06K7/0008
摘要： A system establishes synchronicity of transmission and receiving for each reader/writer of an RF tag independently without obtaining synchronization of the reader/writers by means of an unspecified number of control terminals is desired as a reader/writer system. A reader/writer comprises a transmitter operable to transmit an interrogation signal to an RF tag, and a receiver operable to receive a response signal from an RF tag, wherein the transmitter is operable to transmit an interrogation signal based on a synchronization signal received from another reader/writer.
摘要翻译： 作为读/写系统，系统需要独立地建立RF标签的每个读/写器的发送和接收的同步性，而无需通过未指定数量的控制终端获得读/写器的同步。 读写器包括可操作以将讯号信号发射到RF标签的发射器和可操作以从RF标签接收响应信号的接收器，其中发射器可操作以基于从另一个接收的同步信号发送询问信号 读者/作家
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公开(公告)号：US08354916B2
公开(公告)日：2013-01-15
申请号：US11599097
申请日：2006-11-14
IPC分类号： H04Q5/22
CPC分类号： G06K7/10356 , G06K7/0008
摘要： There is provided a radio interrogator system which reduces the interference with a radio transponder and avoids the decrease in throughput of the entire system in a case in which a plurality of radio interrogators are disposed at positions brought relatively close to each other and are simultaneously placed into operation.The plurality of radio interrogators are classified into two groups and each of the radio interrogators has an operation mode setting unit capable of exclusively setting, for each of the classified groups, a transmission mode for transmitting a radio transmission signal to a radio transponder or a reception mode for receiving a radio response signal transmitted from the radio transponder as a response to a radio transmission signal from the radio interrogator.
摘要翻译： 提供了一种无线电询问器系统，其减少了与无线电转发器的干扰，并且在多个无线电询问器被布置在彼此相对靠近的位置的情况下避免了整个系统的吞吐量的降低，同时被放置在 操作。 多个无线电询问器被分为两组，每个无线电询问器具有操作模式设置单元，其能够针对每个分类的组专门设置用于将无线电发送信号发送到无线电转发器或接收的发送模式 用于接收从无线电应答器发送的无线电应答信号作为对来自无线电询问器的无线电发送信号的响应的模式。
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公开(公告)号：US20070057770A1
公开(公告)日：2007-03-15
申请号：US11599097
申请日：2006-11-14
IPC分类号： H04Q5/22
CPC分类号： G06K7/10356 , G06K7/0008
摘要： There is provided a radio interrogator system which reduces the interference with a radio transponder and avoids the decrease in throughput of the entire system in a case in which a plurality of radio interrogators are disposed at positions brought relatively close to each other and are simultaneously placed into operation. The plurality of radio interrogators are classified into two groups and each of the radio interrogators has an operation mode setting unit capable of exclusively setting, for each of the classified groups, a transmission mode for transmitting a radio transmission signal to a radio transponder or a reception mode for receiving a radio response signal transmitted from the radio transponder as a response to a radio transmission signal from the radio interrogator.
摘要翻译： 提供了一种无线电询问器系统，其减少了与无线电转发器的干扰，并且在多个无线电询问器被布置在彼此相对靠近的位置的情况下避免了整个系统的吞吐量的降低，同时被放置在 操作。 多个无线电询问器被分为两组，每个无线电询问器具有操作模式设置单元，其能够针对每个分类的组专门设置用于将无线电发送信号发送到无线电转发器或接收的发送模式 用于接收从无线电应答器发送的无线电应答信号作为对来自无线电询问器的无线电发送信号的响应的模式。
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公开(公告)号：US07953370B2
公开(公告)日：2011-05-31
申请号：US11204582
申请日：2005-08-16
CPC分类号： G06K7/10069 , G06K19/07
摘要： An RFID transceiver device is proposed capable of carrier sensing even when the difference with respect to the carrier frequency employed by the other system is close to “0”. The device includes a control and signal processing circuit; a local oscillation circuit that generates a local oscillation signal of frequency that is specified by said control and signal processing circuit; and a reception circuit that demodulates the reception signal using the local oscillation signal frequency that is output from said local oscillation circuit; wherein the control and signal processing circuit performs control so as to output, to the local oscillation circuit, a local oscillation signal of a reference frequency in the case of ordinary communication, and output, to the local oscillation circuit, a local oscillation signal shifted by a prescribed frequency with respect to said reference frequency in the case of carrier sensing, as a local oscillation signal for demodulating the reception signal in the reception circuit.
摘要翻译： 即使当相对于另一个系统使用的载波频率的差异接近于“0”时，提出能够进行载波检测的RFID收发器装置。 该装置包括控制和信号处理电路; 本地振荡电路，其产生由所述控制信号处理电路指定的频率的本地振荡信号; 以及接收电路，使用从所述本地振荡电路输出的本地振荡信号频率对接收信号进行解调; 其中，所述控制信号处理电路进行控制，以便在通常的通信的情况下向所述本地振荡电路输出参考频率的本地振荡信号，并且向所述本地振荡电路输出由所述本地振荡信号偏移的本地振荡信号 作为用于解调接收电路中的接收信号的本地振荡信号，在载波检测的情况下相对于所述参考频率的规定频率。
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公开(公告)号：US07492812B2
公开(公告)日：2009-02-17
申请号：US11209627
申请日：2005-08-24
IPC分类号： H04L5/16
CPC分类号： H04B1/525 , G06K7/0008
摘要： An RFID transceiver device is capable of high sensitivity reception, by the reduction of noise, irrespective of the distance to the tag. The RFID transceiver device includes a delay circuit between a local oscillation circuit and a demodulation circuit, wherein the amount of delay of the delay circuit is set to a magnitude corresponding to the path difference between the path of leakage, via a duplexer into the demodulation circuit, of transmission signal output from the local oscillation circuit for transmission, and the path of direct input of the local oscillation signal from the local oscillation circuit to the demodulation circuit.
摘要翻译： RFID收发器设备能够通过降低噪声来实现高灵敏度接收，而与标签的距离无关。 RFID收发器装置包括在本地振荡电路和解调电路之间的延迟电路，其中延迟电路的延迟量被设置为对应于泄漏路径之间的路径差的大小，经由双工器到解调电路 的从本地振荡电路输出的发送信号进行发送，以及将本地振荡信号从本地振荡电路直接输入到解调电路的路径。
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公开(公告)号：US20060229032A1
公开(公告)日：2006-10-12
申请号：US11209627
申请日：2005-08-24
IPC分类号： H04B1/46
CPC分类号： H04B1/525 , G06K7/0008
摘要： An RFID transceiver device is capable of high sensitivity reception, by the reduction of noise, irrespective of the distance to the tag. The RFID transceiver device includes a delay circuit between a local oscillation circuit and a demodulation circuit, wherein the amount of delay of the delay circuit is set to a magnitude corresponding to the path difference between the path of leakage, via a duplexer into the demodulation circuit, of transmission signal output from the local oscillation circuit for transmission, and the path of direct input of the local oscillation signal from the local oscillation circuit to the demodulation circuit.
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公开(公告)号：US20060229041A1
公开(公告)日：2006-10-12
申请号：US11204582
申请日：2005-08-16
IPC分类号： H04B1/26
CPC分类号： G06K7/10069 , G06K19/07
摘要： An RFID transceiver device is proposed capable of carrier sensing even when the difference with respect to the carrier frequency employed by the other system is close to “0”. The device includes a control and signal processing circuit; a local oscillation circuit that generates a local oscillation signal of frequency that is specified by said control and signal processing circuit; and a reception circuit that demodulates the reception signal using the local oscillation signal frequency that is output from said local oscillation circuit; wherein the control and signal processing circuit performs control so as to output, to the local oscillation circuit, a local oscillation signal of a reference frequency in the case of ordinary communication, and output, to the local oscillation circuit, a local oscillation signal shifted by a prescribed frequency with respect to said reference frequency in the case of carrier sensing, as a local oscillation signal for demodulating the reception signal in the reception circuit.
摘要翻译： 即使当相对于另一个系统使用的载波频率的差异接近于“0”时，提出能够进行载波检测的RFID收发器装置。 该装置包括控制和信号处理电路; 本地振荡电路，其产生由所述控制信号处理电路指定的频率的本地振荡信号; 以及接收电路，使用从所述本地振荡电路输出的本地振荡信号频率对接收信号进行解调; 其中，所述控制信号处理电路进行控制，以便在通常的通信的情况下向所述本地振荡电路输出参考频率的本地振荡信号，并且向所述本地振荡电路输出由所述本地振荡信号偏移的本地振荡信号 作为用于解调接收电路中的接收信号的本地振荡信号，在载波检测的情况下相对于所述参考频率的规定频率。
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公开(公告)号：US5138662A
公开(公告)日：1992-08-11
申请号：US508553
申请日：1990-04-13
CPC分类号： G10L19/12
摘要： A speech coding apparatus which selects an optimum code from a code book, the optimum code giving the minimum magnitude of error signal between the input signal and the reproduced signal obtained by a filter calculation using a linear prediction parameter from a linear predictive analysis unit with respect to the codes of the code book, wherein the code book is formed by thinning to 1/M (M being an integer of two or more) the plurality of sampling values constituting the codes. To compensate for the deterioration of the quality of the reproduced signal caused by thinning the sampling values in this way, an additional linear predictive analysis unit is further introduced and use made of an amended linear prediction parameter instead of the linear prediction parameter from the originally provided linear predictive analysis unit.
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公开(公告)号：US5086471A
公开(公告)日：1992-02-04
申请号：US545609
申请日：1990-06-29
CPC分类号： G10L19/083 , G06T9/008 , H03M7/3082
摘要： A gain-shape vector quantization apparatus for compressing the data of voice signal. A code book portion is constituted by a plurality of shape vectors which produce a plurality of selected shape vectors. A plurality of variable gain circuits impart gains to each shape vector produced from the code book portion. A plurality of synthesis filters regenerate signals from the outputs of the variable gain circuits. An adder adds the signals regenerated by the synthesis filters. An evaluation unit produces an index to select a plurality of shape vectors in the code book portion in order to minimize an error between the output of the adder and an input speech signal and further produces gain adjusting signal for the variable gain circuits.
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公开(公告)号：US08509136B2
公开(公告)日：2013-08-13
申请号：US12767913
申请日：2010-04-27
CPC分类号： H04L25/20 , H04B7/15521 , H04B7/2606 , H04L1/0001 , H04L1/0025 , H04L1/0077 , H04L27/0008 , H04L27/34
摘要： A base station BS transmits downlink data to a relay station RS. A mobile station MS transmits uplink data to the relay station RS. The relay station RS determines a first modulation scheme for transmitting the uplink data to the base station BS, and determines a second modulation scheme for transmitting the downlink data to the mobile station MS. The relay station RS multiplies a symbol sequence obtained by the first modulation scheme by a symbol sequence obtained by the second modulation scheme for each symbol, and multicasts the multiplication result to the base station BS and the mobile station MS.
摘要翻译： 基站BS向中继站RS发送下行链路数据。 移动台MS向中继站RS发送上行数据。 中继站RS确定用于向基站BS发送上行链路数据的第一调制方式，并且确定用于向移动台MS发送下行链路数据的第二调制方式。 中继站RS将通过第一调制方式获得的符号序列乘以由每个符号通过第二调制方案获得的符号序列，并将乘法结果多播到基站BS和移动站MS。
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