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    • 1. 发明授权
    • Radio interrogator system and radio communication method therefor
    • 无线电询问器系统及其无线电通信方法
    • US08354916B2
    • 2013-01-15
    • US11599097
    • 2006-11-14
    • Yoshinori TanakaTeruhisa NinomiyaNobuhisa Aoki
    • Yoshinori TanakaTeruhisa NinomiyaNobuhisa Aoki
    • H04Q5/22
    • G06K7/10356G06K7/0008
    • 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.
    • 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。
    • 2. 发明申请
    • Radio interrogator system and radio communication method therefor
    • 无线电询问器系统及其无线电通信方法
    • US20070057770A1
    • 2007-03-15
    • US11599097
    • 2006-11-14
    • Yoshinori TanakaTeruhisa NinomiyaNobuhisa Aoki
    • Yoshinori TanakaTeruhisa NinomiyaNobuhisa Aoki
    • H04Q5/22
    • G06K7/10356G06K7/0008
    • 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.
    • 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。
    • 5. 发明申请
    • Carrier sensing method and RFID transceiver device using the same
    • 载波感测方法和使用其的RFID收发器设备
    • US20060229041A1
    • 2006-10-12
    • US11204582
    • 2005-08-16
    • Teruhisa NinomiyaYoshinori Tanaka
    • Teruhisa NinomiyaYoshinori Tanaka
    • H04B1/26
    • G06K7/10069G06K19/07
    • 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.
    • 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。
    • 6. 发明授权
    • Carrier sensing method and RFID transceiver device using the same
    • 载波感测方法和使用其的RFID收发器设备
    • US07953370B2
    • 2011-05-31
    • US11204582
    • 2005-08-16
    • Teruhisa NinomiyaYoshinori Tanaka
    • Teruhisa NinomiyaYoshinori Tanaka
    • H04B7/14H04Q5/22
    • G06K7/10069G06K19/07
    • 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.
    • 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。