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21. 发明申请

US20060128334A1 Wireless communication receiver 审中-公开
标题翻译：无线通信接收机
公开(公告)号：US20060128334A1
公开(公告)日：2006-06-15
申请号：US11170086
申请日：2005-06-30
申请人： Isao Ikuta , Akio Yamamoto , Yutaka Igarashi , Stephen Goodwin
发明人： Isao Ikuta , Akio Yamamoto , Yutaka Igarashi , Stephen Goodwin
IPC分类号： H04B1/06 , H04B7/00
CPC分类号： H03G3/3052 , H03G1/0088
摘要： To reduce circuit area and power consumption and suppress transient response occurring at switching in PGA of a programmable gain amplifier is provided a wireless communication receiver comprising PGAs for adjusting the gain of a received signal down-converted by mixers and sending it to base-band block. Within PGAs are provided HPFATT circuits formed of capacitors arranged in series, and ladder resistors arranged in parallel, with signal lines, and a plurality of switches. HPFATT is a circuit serving as a high-pass filter and an attenuator for gain switching, wherein switches are controlled by control signal sg from a controller. Amplifiers connected to the rear stage of the HPFATT circuit are formed of MOS transistors.
摘要翻译：为了减少电路面积和功率消耗并抑制在可编程增益放大器的PGA中切换时发生的瞬态响应，提供了一种包括用于调节被混频器下变频的接收信号的增益的PGA的无线通信接收机，并将其发送到基带块。在PGA中提供由串联布置的电容器构成的HPFATT电路和与信号线并联布置的梯形电阻器以及多个开关。 HPFATT是用作高通滤波器和用于增益切换的衰减器的电路，其中开关由来自控制器的控制信号sg控制。连接到HPFATT电路的后级的放大器由MOS晶体管形成。

22. 发明申请

US20050118976A1 Receiving system and semiconductor integrated circuit device for processing wireless communication signal 有权
标题翻译：接收系统和半导体集成电路设备，用于处理无线通信信号
公开(公告)号：US20050118976A1
公开(公告)日：2005-06-02
申请号：US10842445
申请日：2004-05-11
申请人： Motoki Murakami , Yutaka Igarashi , Akio Yamamoto , Isao Ikuta , Yoshiaki Harasawa
发明人： Motoki Murakami , Yutaka Igarashi , Akio Yamamoto , Isao Ikuta , Yoshiaki Harasawa
IPC分类号： H04B1/30 , H04B1/16 , H03H11/16 , H03K3/00 , H03K5/13
CPC分类号： H04B1/30
摘要： The invention provides a receiving system and a transmitting system capable of decreasing an offset between differential signals and between quadrature signals and improving a manufacturing yield and a semiconductor integrated circuit device for processing a wireless communication signal having therein the systems. A receiving system includes: a local oscillator for generating an oscillation signal in a desired frequency; a 90-degree phase-shifting circuit for generating a signal by shifting a phase of the oscillation signal output from the local oscillator by 90 degrees; a first mixer for mixing one of differential reception signals with an output signal of the first 90-degree phase-shifting circuit and outputting frequency-converted differential signals; and a second mixer for mixing another one of the differential reception signals with an output signal of the local oscillator and outputting frequency-converted differential signals.
摘要翻译：本发明提供一种能够减少差分信号与正交信号之间的偏移并提高制造成品率的接收系统和发送系统，以及用于处理其中具有系统的无线通信信号的半导体集成电路装置。接收系统包括：本地振荡器，用于产生期望频率的振荡信号; 用于通过将从本地振荡器输出的振荡信号的相位相移90度来产生信号的90度相移电路; 第一混频器，用于将差分接收信号中的一个与第一90度移相电路的输出信号混频并输出经频率转换的差分信号; 以及第二混频器，用于将另一个差分接收信号与本地振荡器的输出信号混频并输出经变频的差分信号。

23. 发明申请

US20070189361A1 RF Transceiver Using Hopping Frequency Synthesizer 失效
标题翻译：射频收发器使用跳频合成器
公开(公告)号：US20070189361A1
公开(公告)日：2007-08-16
申请号：US11737802
申请日：2007-04-20
申请人： YOSHIKAZU SUGIYAMA , Isao Ikuta , Yusaku Katsube
发明人： YOSHIKAZU SUGIYAMA , Isao Ikuta , Yusaku Katsube
IPC分类号： H04B1/00
CPC分类号： H04L27/2067 , H03C1/52 , H03C3/00 , H04B1/7136 , H04B1/71635
摘要： A technique of frequency hopping communication capable of high-speed switching of a plurality of signals having ultra-wide band 528 MHz bandwidth at high-speed and setting and switching a band center frequency and the number of bands arbitrary is provided. A radio transceiver has a frequency hopping communication function of UWB system for switching the ultra wide band signal. In the device, high-speed frequency hopping is realized by controlling an SSB mixer in a local oscillator circuit and switching the frequency of a DDS. The device sets NCO data to the DDS and switches a quadrature phase signal of an output, and switches a signal input of an input terminal of the SSB mixer by a control of a phase switching switch. One of a sum component and a difference component of a mixture of first and second quadrature phase signals is outputted from the output terminal of the SSB mixer.
摘要翻译：提供一种跳频通信技术，其能够高速切换具有超宽带528MHz带宽的多个信号，并且设置和切换频带中心频率和频带数量的跳频通信。无线电收发器具有用于切换超宽带信号的UWB系统的跳频通信功能。在设备中，通过在本地振荡器电路中控制SSB混频器并切换DDS的频率来实现高速跳频。该装置将NCO数据设置为DDS并切换输出的正交相位信号，并通过相位切换开关的控制切换SSB混频器的输入端的信号输入。从SSB混频器的输出端子输出第一和第二正交相位信号的混合的和分量和差分分量之一。

24. 发明申请

US20060220757A1 Semiconductor integrated circuit for communication 审中-公开
标题翻译：半导体集成电路通讯
公开(公告)号：US20060220757A1
公开(公告)日：2006-10-05
申请号：US11390452
申请日：2006-03-28
申请人： Kunito Satake , Hirotaka Oosawa , Isao Ikuta , Satoru Yamamoto
发明人： Kunito Satake , Hirotaka Oosawa , Isao Ikuta , Satoru Yamamoto
IPC分类号： H03B5/12
CPC分类号： H03L7/107 , H03B5/1215 , H03B5/1228 , H03B5/124 , H03B5/1265 , H03B2201/025 , H03J2200/10 , H03L7/07 , H03L7/099 , H03L7/183
摘要： A radio frequency IC includes a PLL circuit and prevents a PLL loop from being easily unlocked upon fluctuation of VCO oscillation frequencies due to a change in temperature. The PLL loop includes a VCO capable of switching oscillation frequency bands, a variable frequency divider, a phase comparison circuit, and a loop filter. A switching switch can apply one of plural predetermined set voltages to the VCO in place of a voltage of the loop filter in an open state in which the loop filter is disconnected from the VCO. The radio frequency IC als has a decision circuit that decides whether the phase of output of the variable frequency divider is ahead of or lags behind that of a reference signal of a predetermined frequency, and an automatic band switching circuit that generates a signal for switching VCO frequency bands, based on output of the decision circuit.
摘要翻译：无线电频率IC包括PLL电路，并且防止由于温度变化导致VCO振荡频率波动时PLL环路容易解锁。 PLL环路包括能够切换振荡频带的VCO，可变分频器，相位比较电路和环路滤波器。切换开关可以在环路滤波器与VCO断开的打开状态中将代替多个预定设定电压中的一个代替环路滤波器的电压。射频IC als具有决定电路，判断可变分频器的输出的相位是否在预定频率的参考信号的前面，或者落后于预定频率的参考信号的输出相位，以及产生用于开关VCO的信号的自动频带切换电路频段，基于判决电路的输出。

25. 发明申请

US20060181362A1 Voltage-controlled oscillator and RF-IC 审中-公开
标题翻译：压控振荡器和RF-IC
公开(公告)号：US20060181362A1
公开(公告)日：2006-08-17
申请号：US11280819
申请日：2005-11-17
申请人： Isao Ikuta , Akio Yamamoto , Yusaku Katsube , Toshiya Uozumi , Yasuyuki Kimura
发明人： Isao Ikuta , Akio Yamamoto , Yusaku Katsube , Toshiya Uozumi , Yasuyuki Kimura
IPC分类号： H03B5/08
CPC分类号： H03B5/1841 , H03B5/1212 , H03B5/1228 , H03B5/1243 , H03B5/1253
摘要： There are provided a voltage-controlled oscillator and an RF-IC for W-CDMA, which are capable of ensuring a wide frequency range and improving oscillation stability. The voltage-controlled oscillator (RF-IC) includes: switching A and B inductors generating a magnetic interaction between resonant A and B inductors of a resonant circuit; and an A_NMOS, a B_NMOS, a C_NMOS, and D_NMOS as switch/load means having together a function of changing an inductance value by the magnetic interaction between the resonant A and B inductors and the switching A and B inductors and a function of serving as loads of the switching A and B inductors. The A_NMOS, the B_NMOS, the C_NMOS, and the D_NMOS are turned ON/OFF by a control signal so as to control the mutual induction, whereby the oscillation frequency is switched by changing the inductance value of the resonant circuit. Also, oscillation stability is improved by increasing the inductance value.
摘要翻译：提供了一种用于W-CDMA的压控振荡器和RF-IC，其能够确保较宽的频率范围并提高振荡稳定性。压控振荡器（RF-IC）包括：开关A和B电感器，其在谐振电路的谐振A和B电感器之间产生磁相互作用; 以及作为开关/负载的A_NMOS，B_NMOS，C_NMOS和D_NMOS一起具有通过谐振A和B电感器与开关A和B电感器之间的磁相互作用改变电感值的功能，以及用作开关A和B电感的负载。通过控制信号使A_NMOS，B_NMOS，C_NMOS和D_NMOS变为ON / OFF，从而控制互感，从而通过改变谐振电路的电感值来切换振荡频率。此外，通过增加电感值来提高振荡稳定性。

26. 发明申请

US20050147192A1 High frequency signal receiver and semiconductor integrated circuit 审中-公开
标题翻译：高频信号接收机和半导体集成电路
公开(公告)号：US20050147192A1
公开(公告)日：2005-07-07
申请号：US10985948
申请日：2004-11-12
申请人： Akio Yamamoto , Yutaka Igarashi , Isao Ikuta
发明人： Akio Yamamoto , Yutaka Igarashi , Isao Ikuta
IPC分类号： H04L27/38 , H03G3/30 , H04B1/10 , H04B1/16 , H04L27/08 , H04L27/22
CPC分类号： H04B1/1036 , H03G3/3052
摘要： A high frequency signal receiver comprising a variable gain amplifier, a first filter for restricting a bandwidth of an analog baseband signal, an AD converter connected to the first filter, a second filter for restricting the bandwidth of an output of the AD converter, an interference wave detection circuit for detecting the level of an interference wave in the received signal, and a controller for controlling the first filter to have a wide bandwidth when the level of the interference wave is lower than a threshold level, and switching the first filter to have a narrow bandwidth while changing the characteristics of the second filter so as to compensate deterioration of the pass-band of the first filter when the level of the interference wave is equal to or greater than the threshold level.
摘要翻译：一种高频信号接收机，包括可变增益放大器，用于限制模拟基带信号的带宽的第一滤波器，连接到第一滤波器的AD转换器，用于限制AD转换器的输出的带宽的第二滤波器，波检测电路，用于检测接收信号中的干扰波的电平;以及控制器，用于当干扰波的电平低于阈值电平时控制第一滤波器具有宽带宽，并且将第一滤波器切换成具有窄带宽，同时改变第二滤波器的特性，以便当干扰波的电平等于或大于阈值电平时补偿第一滤波器的通带的劣化。

27. 发明授权

US4950173A Service temperature connector and packaging structure of semiconductor device employing the same 失效
标题翻译：使用其的半导体器件的使用温度连接器和封装结构
公开(公告)号：US4950173A
公开(公告)日：1990-08-21
申请号：US843004
申请日：1986-03-24
申请人： Tetsuro Minemura , Hisashi Ando , Yoshiaki Kita , Isao Ikuta
发明人： Tetsuro Minemura , Hisashi Ando , Yoshiaki Kita , Isao Ikuta
IPC分类号： B32B15/01 , H01R4/58 , H01R12/34 , H05K3/30 , H05K3/32 , H05K3/40
CPC分类号： H05K3/326 , H01R12/82 , H01R12/52 , H01R4/58 , H05K2201/0308 , H05K2201/0397 , H05K2201/1059 , H05K3/306 , H05K3/4092
摘要： The present invention discloses a connector comprising: an insulating substrate having a plurality of through-holes and having a desired first circuit pattern formed on the substrate; female contactors each being formed and fixed around the edge of the through-hole and having an opening, an edge of which extends inwardly of the through-hole, said female contactors being electrically connected to said first pattern; and a male contactor comprising an insulating substrate having a desired second circuit pattern thereon and a plurality of male contactor pins fixed to the substrate and electrically connected to said second pattern, said pins each being located in a position corresponding to each of the openings of said female contactors, wherein said female contactors are made of a thin film of a shape memory alloy and the edge of each of the female contactors is given, before inserting each of the male contactor pins, such a shape memory that the contactor is returned to a position to close the opening when said contactor is subjected to a temperature above the martensitic transition temperature.
摘要翻译：本发明公开了一种连接器，包括：绝缘基板，具有多个通孔，并且具有形成在所述基板上的期望的第一电路图案; 每个都形成并固定在通孔的边缘周围的阴接触器，并且具有开口，其开口向内延伸通孔，所述阴接触器电连接到所述第一图案; 以及阳接触器，其包括其上具有期望的第二电路图案的绝缘基板和固定到所述基板并且电连接到所述第二图案的多个阳接触器销，所述引脚各自位于对应于所述第二图案的每个开口的位置阴接触器，其中所述阴接触器由形状记忆合金的薄膜制成，并且在插入每个阳接触器销之前，给出每个阴接触器的边缘，接触器返回到形状记忆合金的形状记忆体当所述接触器经受高于马氏体转变温度的温度时关闭开口的位置。

28. 发明授权

US4743526A Alloy having variable spectral reflectance and information recording material making use of the same 失效
标题翻译：具有可变光谱反射率的合金和使用其的信息记录材料
公开(公告)号：US4743526A
公开(公告)日：1988-05-10
申请号：US803640
申请日：1985-12-02
申请人： Hisashi Ando , Tetsuro Minemura , Isao Ikuta , Yosimi Katou , Mituo Nakamura
发明人： Hisashi Ando , Tetsuro Minemura , Isao Ikuta , Yosimi Katou , Mituo Nakamura
IPC分类号： B41M5/26 , C22C5/06 , C22C30/06 , G11B7/24 , G11B7/243 , G03C1/72
CPC分类号： C22C30/06 , C22C5/06 , G11B7/243 , G11B2007/24304 , G11B2007/24308 , G11B7/00454 , Y10S430/146 , Y10S430/165
摘要： An alloy having variable spectral reflectance having a composition which essentially consists of Ag, 30 to 46 wt % of Zn and 0.1 to 15 wt % in total of at least one element selected from elements of groups Ia, IIa, Iva, Va, VIa, VIIa, VIII, Ib to Vb and rare earth elements, the alloy being able to have different crystal structures, one of which is obtained when it is held in solid state at a first temperature above the room temperature, another of which is obtained when the same is held in the solid state at a second temperture lower than said first temperature. Disclosed also is an information recording medium made of the alloy. The alloy exhibits a reversible change in color or spectral reflectance as a result of change between two crystal phases, so that the information recording medium produced from this alloy can be used effectively as the medium for recording, regeneration and erasion of the informations.
摘要翻译：具有可变光谱反射率的合金，其组成基本上由Ag组成，30至46重量％的Zn和0.1至15重量％的总共至少一种选自组Ia，IIa，Iva，Va，VIa， VIIa，VIII，Ib至Vb和稀土元素，该合金能够具有不同的晶体结构，其中之一是当其在高于室温的第一温度下保持固态时获得，其中另一个是当在比所述第一温度低的第二温度下也保持固态。还公开了一种由该合金制成的信息记录介质。合金由于两个晶相之间的变化而呈现出颜色或光谱反射率的可逆变化，从而可以有效地利用由该合金制成的信息记录介质作为信息记录，再生和擦除的介质。

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