Communication device
    1.
    发明专利
    Communication device 审中-公开
    通信设备

    公开(公告)号:JP2007034716A

    公开(公告)日:2007-02-08

    申请号:JP2005217625

    申请日:2005-07-27

    Abstract: PROBLEM TO BE SOLVED: To provide a noncontact IC card which causes malfunction even if modulation degree of a modulation circuit is increased by preventing interference of a circuit including the modulation circuit on a circuit including a decoding circuit and a clock generation circuit. SOLUTION: The communication device comprises an antenna circuit 2 including a coil, the circuit 3 including the decoding circuit and the clock generation circuit, connected to the antenna circuit 2, and the circuit including the modulation circuit connected to the antenna circuit 2 through a wire of a system different from that of the circuit 3 including the decoding circuit and the clock generation circuit. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:即使通过防止包括调制电路在内的电路对包括解码电路和时钟发生电路的电路的干扰而增加调制电路的调制度,也提供了引起故障的非接触式IC卡。 解决方案:通信设备包括一个包括线圈的天线电路2,连接到天线电路2的包括解码电路和时钟产生电路的电路3,以及包括连接到天线电路2的调制电路的电路 通过与包括解码电路和时钟发生电路的电路3不同的系统的线。 版权所有(C)2007,JPO&INPIT

    Demodulation circuit
    2.
    发明专利
    Demodulation circuit 审中-公开
    解调电路

    公开(公告)号:JP2007028257A

    公开(公告)日:2007-02-01

    申请号:JP2005208231

    申请日:2005-07-19

    Abstract: PROBLEM TO BE SOLVED: To provide a demodulation circuit capable of stably demodulating an ASK signal having a small modulation rate with a circuit of comparatively simple configuration.
    SOLUTION: One part of the ASK signal including any one of an upper envelope and a lower envelope is amplified in an amplifier 101. Then, the signal component of the envelope of the ASK signal included in the amplified signal is extracted in a signal extractor 110. Since the envelope of the ASK signal is equivalent to a baseband signal, the component of the baseband signal is amplified in the amplifier 101, and the component of the amplified baseband signal is extracted in the signal extractor 110. Accordingly, since the baseband signal having a large amplitude can be extracted by amplifying the minute baseband signal included in the ASK signal, the ASK signal having a small modulation rate can be stably demodulated.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种能够以比较简单的配置的电路来稳定地解调具有小调制率的ASK信号的解调电路。 解决方案:包括上包络和下包络中的任何一个的ASK信号的一部分在放大器101中被放大。然后,包括在放大信号中的ASK信号的包络的信号分量被提取在 信号提取器110.由于ASK信号的包络等同于基带信号,因此基带信号的分量在放大器101中被放大,并且在信号提取器110中提取放大的基带信号的分量。因此,由于 可以通过放大ASK信号中包含的微小基带信号来提取具有大幅度的基带信号,可以稳定地解调具有小调制率的ASK信号。 版权所有(C)2007,JPO&INPIT

    Communication apparatus
    3.
    发明专利
    Communication apparatus 有权
    通讯设备

    公开(公告)号:JP2007027829A

    公开(公告)日:2007-02-01

    申请号:JP2005202819

    申请日:2005-07-12

    Abstract: PROBLEM TO BE SOLVED: To provide a communication apparatus including a circuit for receiving a radio wave and a circuit for transmitting a radio wave, wherein the circuit for transmitting the radio wave can transmit the radio wave with sufficient strength and the circuit for receiving the radio wave can obtain sufficient sensitivity even if both the circuits share an antenna circuit. SOLUTION: The communication apparatus includes: the antenna circuit 2 including a first coil; a first circuit 3 using the first coil of the antenna circuit 2; and a second circuit 4 using a second coil being part of the first coil which is shared with the circuit 2 so that the impedance of the second coil is smaller than that of the first coil. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 解决的问题:为了提供一种包括用于接收无线电波的电路和用于发送无线电波的电路的通信装置,其中用于发送无线电波的电路可以以足够的强度发送无线电波,并且用于电路 即使两个电路共享天线电路,接收无线电波也可以获得足够的灵敏度。 解决方案:通信装置包括:天线电路2,包括第一线圈; 使用天线电路2的第一线圈的第一电路3; 以及第二电路4,其使用与电路2共享的第一线圈的一部分的第二线圈,使得第二线圈的阻抗小于第一线圈的阻抗。 版权所有(C)2007,JPO&INPIT

    Semiconductor rectifying element and its manufacturing method, and rectifying circuit for power source of contactless type ic card
    4.
    发明专利
    Semiconductor rectifying element and its manufacturing method, and rectifying circuit for power source of contactless type ic card 审中-公开
    半导体整流元件及其制造方法,以及针对不连续型IC卡电源的修复电路

    公开(公告)号:JP2003008030A

    公开(公告)日:2003-01-10

    申请号:JP2001183727

    申请日:2001-06-18

    Inventor: MIYASHITA MASARU

    Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor rectifying element, which can prevent a reverse withstand voltage from dropping accompanying higher impurity density of a well, and its manufacturing method, and a rectifying circuit for the power source of a contactless IC card. SOLUTION: An area Anw2 into which n type impurities are introduced and an area Apw2 into which p type impurities are introduced are formed across a border area Ad having a specified interval, so the impurity density of the junction part of a diode is less than when those areas are formed adjacently. Consequently, the reverse withstand voltage of the diode can be increased. Further, even when introduction conditions of the n type or p type impurities and heating conditions of a semiconductor substrate 1 in well formation are predetermined, the reverse withstand voltage of the diode can optionally be set by adjusting the interval of the border area Ad, so the diode can be formed by using the well forming stage in an ordinary CMOS process.

    Abstract translation: 要解决的问题:提供一种半导体整流元件及其制造方法以及用于非接触式IC卡的电源的整流电路,能够防止逆向耐受电压下降,伴随着阱的杂质浓度的增加。 解决方案:在具有指定间隔的边界区域Ad上形成引入n型杂质的区域Anw2和引入p型杂质的区域Apw2,因此二极管的接合部分的杂质浓度小于 这些地区是相邻形成的。 因此,可以提高二极管的反向耐受电压。 此外,即使预先确定了n型或p型杂质的导入条件和半导体衬底1的加热条件,二极管的反向耐受电压也可以通过调节边界区域Ad的间隔来设定,因此 可以通过在普通CMOS工艺中使用阱形成阶段形成二极管。

    Information processing device
    5.
    发明专利
    Information processing device 审中-公开
    信息处理设备

    公开(公告)号:JP2007068073A

    公开(公告)日:2007-03-15

    申请号:JP2005254399

    申请日:2005-09-02

    Abstract: PROBLEM TO BE SOLVED: To stably carry out wireless communication. SOLUTION: A loop antenna 61 of a reader/writer transmits or receives a signal to/from a loop antenna 81 of an IC card by electromagnetic coupling. Stable wireless communications can be attained by connecting a chip inductor 62 with the loop antenna 61 in series so that in the range of larger coupling coefficient K34, the received voltage V4 which the loop antenna 81 receives is made higher than the voltage which is needed for the operation of an IC card. This invention is applicable to an information processor. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:稳定地进行无线通信。 解决方案:读写器的环形天线61通过电磁耦合向IC卡的环形天线81发送或接收信号。 可以通过将芯片电感器62与环形天线61串联连接来实现稳定的无线通信,使得在耦合系数K34较大的范围内,环形天线81接收的接收电压V4高于对于 IC卡的操作。 本发明可应用于信息处理器。 版权所有(C)2007,JPO&INPIT

    Signal processing device
    6.
    发明专利
    Signal processing device 有权
    信号处理装置

    公开(公告)号:JP2007018381A

    公开(公告)日:2007-01-25

    申请号:JP2005200705

    申请日:2005-07-08

    Abstract: PROBLEM TO BE SOLVED: To provide a signal processing device, capable of effectively preventing erroneous recognition from occurring in a host device by the occurrence of unwanted fluctuations in a signal, when turning on/off a power supply in a circuit for outputting a signal, such as interrupts to the host device. SOLUTION: When a first circuit 2 has not been started, the signal S1 is maintained at a prescribed value. For the start of the first circuit 2, determination is made, according to whether a plurality of pulses are outputted from the circuit 2, after the power has been turned on, thus preventing the propagation of an unnecessary changes in the signal S1 occurring in an unstable state, when the power of the first circuit 2 rises to a second circuit 3 (host device), and hence effectively preventing misoperations and decrease in processing capability in the host device. By preventing the unwanted processings in the host device, wasteful power consumption can be restrained. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种信号处理装置,其能够通过在信号的不期望的波动的发生中有效地防止在主机装置中发生错误的识别,当在用于输出的电路中打开/关闭电源时 一个信号,如中断主机设备。 解决方案:当第一电路2未启动时,信号S1保持在规定值。 对于第一电路2的开始,在电源接通之后,根据是否从电路2输出多个脉冲进行判定,从而防止信号S1中不必要的变化发生在 当第一电路2的功率上升到第二电路3(主机设备)时,因此有效地防止主机设备中的误操作和处理能力的降低。 通过防止主机设备中的不需要的处理,可以抑制浪费的功率消耗。 版权所有(C)2007,JPO&INPIT

    Communication apparatus and mobile terminal
    7.
    发明专利
    Communication apparatus and mobile terminal 有权
    通信设备和移动终端

    公开(公告)号:JP2006287844A

    公开(公告)日:2006-10-19

    申请号:JP2005108400

    申请日:2005-04-05

    CPC classification number: Y02D70/00 Y02D70/40 Y02D70/42

    Abstract: PROBLEM TO BE SOLVED: To provide a communication apparatus which is capable of preventing an excessive voltage of an antenna circuit in transmission without deteriorating communication performance, and a mobile terminal comprising the same.
    SOLUTION: If an abnormally high voltage is generated in an antenna circuit 113 while transmission is performed as a reader/writer, a signal output from a transmission circuit 112 to the antenna circuit 113 is stopped so that transmission power supplied to the antenna circuit 113 is reduced, thereby returning the voltage of the antenna circuit 113 into a normal range. Since operation in the case of the abnormal voltage is estimated not to excessively enlarge a current capacity of a clamp circuit 119, an increase in the area of circuit can be suppressed. Furthermore, it is not necessary to form a circuit by a special manufacturing process of high voltage resistance, so that a design time or costs can be suppressed. Moreover, the abnormal voltage can be suppressed without deteriorating the performance of the antenna circuit 113.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 解决的问题:提供一种能够在不恶化通信性能的情况下防止天线电路的过电压的通信装置,以及包括该通信装置的移动终端。 解决方案:如果在作为读取器/写入器进行传输的同时在天线电路113中产生异常高的电压,则从发送电路112输出到天线电路113的信号停止,从而提供给天线的发送功率 电路113被减小,从而将天线电路113的电压恢复到正常范围。 由于估计在异常电压的情况下的操作不会过大地增加钳位电路119的电流容量,所以可以抑制电路面积的增加。 此外,不需要通过高电压电阻的特殊制造工艺形成电路,从而可以抑制设计时间或成本。 此外,可以抑制异常电压而不降低天线电路113的性能。版权所有:(C)2007,JPO&INPIT

    NONVOLATILE SEMICONDUCTOR MEMORY
    10.
    发明专利

    公开(公告)号:JP2001093287A

    公开(公告)日:2001-04-06

    申请号:JP27087399

    申请日:1999-09-24

    Applicant: SONY CORP

    Inventor: MIYASHITA MASARU

    Abstract: PROBLEM TO BE SOLVED: To realize a nonvolatile semiconductor memory in which threshold voltage after erasion can be controlled highly accurately by predicting an erasion characteristic based on a write-in characteristic, and performing memory erasion conforming to erasion conditions set in accordance with the above. SOLUTION: An erasion characteristic predicting means predicts an erasion characteristic in accordance with correlation between a write-in characteristic previously obtained and an erasion characteristic based on a write-in characteristic of a memory cell, and stores obtained erasion characteristic information in a storage means. At the time of erasion operation, erasion conditions, for example, the number of times of applying erasing pulse until reaching the prescribed threshold voltage is set by an erasion means in accordance with stored erasion characteristic information, as erasion operation is performed conforming the above, threshold voltage of a memory cell after erasion can be controlled to near the previously set erasion target value, threshold voltage of a memory cell after erasion can be controlled highly accurately without performing erasion verifying.

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