公开(公告)号：US06721543B1

公开(公告)日：2004-04-13

申请号：US09694671

申请日：2000-10-24

申请人： Takatoshi Katsura ,  Kenji Itoh ,  Shinjirou Fukuyama ,  Mitsuru Mochizuki ,  Hiroaki Nagano ,  Yoshinori Matsunami

发明人： Takatoshi Katsura ,  Kenji Itoh ,  Shinjirou Fukuyama ,  Mitsuru Mochizuki ,  Hiroaki Nagano ,  Yoshinori Matsunami

IPC分类号： H04Q700

CPC分类号： H04B1/52 ,  H04B1/48

摘要： A wireless terminal device includes a transmitting circuit, an isolator, a band pass filter, a switch, a transmitting antenna, a receiving circuit, a band pass filter, a switch, a receiving antenna, a high-pass filter, a low-pass filter and an input/output port. A transmission wave of a frequency is conveyed from the transmitting circuit to the input/output port via the isolator, the band pass filter and the low pass filter, and further to a vehicle antenna. Here, the transmission wave in the direction towards the receiving circuit is blocked by the high-pass filter. On the other hand, a reception wave of a frequency is conveyed from the vehicle antenna to the input/output port, and to the receiving circuit via the high-pass filter and the band pass filter. Here, the reception wave in the direction towards the transmitting circuit is blocked by the low-pass filter. Thus, transmission and reception can simultaneously be performed via a single input/output port, so that the wireless terminal device of the invention is compatible with a general wireless terminal device which performs simultaneous transmission/reception by one transmitting/receiving share antenna.

摘要翻译： 无线终端装置包括发送电路，隔离器，带通滤波器，开关，发送天线，接收电路，带通滤波器，开关，接收天线，高通滤波器，低通滤波器 滤波器和输入/输出端口。 频率的传输波通过隔离器，带通滤波器和低通滤波器从发射电路传送到输入/输出端口，并且进一步传输到车辆天线。 这里，朝向接收电路的方向的发送波被高通滤波器阻挡。 另一方面，频率的接收波从车载天线传送到输入/输出端口，并经由高通滤波器和带通滤波器传送到接收电路。 这里，朝向发送电路的方向的接收波被低通滤波器阻挡。 因此，可以通过单个输入/输出端口同时进行发送和接收，使得本发明的无线终端设备与通过一个发送/接收共享天线同时发送/接收的一般无线终端设备兼容。

公开(公告)号：US06449471B1

公开(公告)日：2002-09-10

申请号：US09707942

申请日：2000-11-08

申请人： Takatoshi Katsura ,  Kenji Itoh ,  Shinjirou Fukuyama ,  Mitsuru Mochizuki ,  Hiroaki Nagano ,  Yoshinori Matsunami ,  Mitsuhiro Shimozawa ,  Fumio Ishizu ,  Ryoji Hayashi

发明人： Takatoshi Katsura ,  Kenji Itoh ,  Shinjirou Fukuyama ,  Mitsuru Mochizuki ,  Hiroaki Nagano ,  Yoshinori Matsunami ,  Mitsuhiro Shimozawa ,  Fumio Ishizu ,  Ryoji Hayashi

IPC分类号： H03D300

CPC分类号： H04B1/0014 ,  H03D3/008 ,  H03D7/02 ,  H04B1/0032 ,  H04B1/0039 ,  H04B1/30 ,  H04L25/061

摘要： In a cellular telephone having a receiving circuit of a direct conversion type using an even harmonic orthogonal mixer, high-pass filters for removing a DC offset component are arranged before and after a variable gain amplifier in a base band circuit. The DC offset component occurred in the even harmonic orthogonal mixer is always constant, and the DC offset component occurred in the variable gain amplifier frequently varies so that a cutoff frequency of the front high-pass filter is set to be lower than a cutoff frequency of the rear high-pass filter, and the frequencies are set to achieve a fast transition response.

摘要翻译： 在具有使用偶次谐波正交混频器的直接变换型接收电路的蜂窝电话机中，在基带电路中的可变增益放大器之前和之后配置用于去除DC偏移分量的高通滤波器。 在偶次谐波正交混频器中发生的DC偏移分量总是恒定的，并且在可变增益放大器中发生的DC偏移分量经常变化，使得前部高通滤波器的截止频率设置为低于截止频率 后置高通滤波器，并设置频率以实现快速的转换响应。

公开(公告)号：US07054610B1

公开(公告)日：2006-05-30

申请号：US09694675

申请日：2000-10-24

申请人： Kenji Itoh ,  Hiroaki Nagano ,  Takatoshi Katsura ,  Shinjirou Fukuyama ,  Mitsuru Mochizuki ,  Yoshinori Matsunami ,  Mitsuhiro Shimozawa ,  Fumio Ishizu ,  Ryoji Hayashi

发明人： Kenji Itoh ,  Hiroaki Nagano ,  Takatoshi Katsura ,  Shinjirou Fukuyama ,  Mitsuru Mochizuki ,  Yoshinori Matsunami ,  Mitsuhiro Shimozawa ,  Fumio Ishizu ,  Ryoji Hayashi

IPC分类号： H04B1/30

CPC分类号： H03D7/1408 ,  H04B1/30

摘要： In a cellular telephone provided with a receiving circuit of a direct conversion type, a passive low-pass filter is arranged between a mixer for an I-channel and a base band circuit for removing interference waves of or above a channel next to a channel neighboring to the I-channel, and another passive low-pass filter is arranged between a mixer for a Q-channel and the base band circuit for removing interference waves of or above a channel next to a channel neighboring to the Q-channel. Since the low-pass filters for removing the interference waves of or above the channel next to the neighboring channel are of a differential type, the circuit scale can be small, and the power consumption is small. Since the interference waves are removed by the passive low-pass filters and the active low-pass filters, only the desired channel can be reliably received.

摘要翻译： 在设置有直接转换型接收电路的蜂窝电话中，无源低通滤波器被布置在用于I信道的混频器和用于去除邻近信道旁边的信道上的干扰波的基带电路之间 并且另一个无源低通滤波器被布置在用于Q信道的混频器和用于去除邻近于Q信道的信道旁边的信道上的干扰波的基带电路之间。 由于用于除去邻近通道旁边的通道或其上方的干扰波的低通滤波器是差分型，所以电路规模可以小，功耗小。 由于无源低通滤波器和有源低通滤波器去除了干扰波，所以只能可靠地接收期望的信道。

公开(公告)号：US06373907B1

公开(公告)日：2002-04-16

申请号：US09695405

申请日：2000-10-25

申请人： Takatoshi Katsura ,  Kenji Itoh ,  Shinjirou Fukuyama ,  Mitsuru Mochizuki ,  Hiroaki Nagano ,  Yoshinori Matsunami ,  Fumio Ishizu ,  Ryoji Hayashi

发明人： Takatoshi Katsura ,  Kenji Itoh ,  Shinjirou Fukuyama ,  Mitsuru Mochizuki ,  Hiroaki Nagano ,  Yoshinori Matsunami ,  Fumio Ishizu ,  Ryoji Hayashi

IPC分类号： H04L2708

CPC分类号： H03G3/3068 ,  H03G3/001

摘要： At the onset of an operation, a level of a base band signal at an input side of a variable gain amplifying circuit is detected by a logarithmic amplifier having a wide dynamic range, and, a control unit controls a gain of a low-noise amplifier in a previous step of a low-pass filter based on the detected level and also controls a gain of variable gain amplifier, whereby saturation at an analog base band portion is prevented even when the level of the input signal is high.

摘要翻译： 在操作开始时，可​​变增益放大电路的输入侧的基带信号的电平由具有宽动态范围的对数放大器检测，并且控制单元控制低噪声放大器的增益 在基于检测电平的低通滤波器的前一步骤中，并且还控制可变增益放大器的增益，由此即使当输入信号的电平较高时，也可以防止模拟基带部分处的饱和。

公开(公告)号：US06980610B2

公开(公告)日：2005-12-27

申请号：US10463324

申请日：2003-06-18

申请人： Takatoshi Katsura ,  Kenji Itoh ,  Shinjirou Fukuyama ,  Mitsuru Mochizuki ,  Hiroaki Nagano ,  Yoshinori Matsunami ,  Fumio Ishizu ,  Ryoji Hayashi

发明人： Takatoshi Katsura ,  Kenji Itoh ,  Shinjirou Fukuyama ,  Mitsuru Mochizuki ,  Hiroaki Nagano ,  Yoshinori Matsunami ,  Fumio Ishizu ,  Ryoji Hayashi

IPC分类号： H03G3/00 ,  H04L27/08

CPC分类号： H03G3/001

摘要： A level of a base band signal at an input side of a variable gain amplification circuit is detected by a logarithmic amplifier having a wide input voltage range at a start of an operation, a control unit then performs a coarse feedforward control on a gain of the variable gain amplifier based on the detected level and finds a level of an output of an A/D converter by a mean square deriving circuit and inputs the resulting signal to the control unit. Then the control unit performs a fine feedback control on the variable gain amplifier based on the detected level.

摘要翻译： 在可变增益放大电路的输入侧的基带信号的电平由操作开始时具有宽的输入电压范围的对数放大器检测，然后控制单元对该增益进行粗略的前馈控制 基于检测电平的可变增益放大器，并通过均方推导电路找到A / D转换器的输出电平，并将所得到的信号输入到控制单元。 然后，控制单元基于检测到的电平对可变增益放大器执行精细反馈控制。

公开(公告)号：US06683925B1

公开(公告)日：2004-01-27

申请号：US09694678

申请日：2000-10-24

申请人： Takatoshi Katsura ,  Kenji Itoh ,  Shinjirou Fukuyama ,  Mitsuru Mochizuki ,  Hiroaki Nagano ,  Yoshinori Matsunami ,  Fumio Ishizu ,  Ryoji Hayashi

发明人： Takatoshi Katsura ,  Kenji Itoh ,  Shinjirou Fukuyama ,  Mitsuru Mochizuki ,  Hiroaki Nagano ,  Yoshinori Matsunami ,  Fumio Ishizu ,  Ryoji Hayashi

IPC分类号： H04L2708

CPC分类号： H03G3/001

摘要： A level of a base band signal at an input side of a variable gain amplification circuit is detected by a logarithmic amplifier having a wide input voltage range at a start of an operation, a control unit then performs a coarse feedforward control on a gain of the variable gain amplifier based on the detected level and finds a level of an output of an A/D converter by a mean square deriving circuit and inputs the resulting signal to the control unit. Then the control unit performs a fine feedback control on the variable gain amplifier based on the detected level.

摘要翻译： 在可变增益放大电路的输入侧的基带信号的电平由操作开始时具有宽的输入电压范围的对数放大器检测，然后控制单元对该增益进行粗略的前馈控制 基于检测电平的可变增益放大器，并通过均方推导电路找到A / D转换器的输出电平，并将所得到的信号输入到控制单元。 然后，控制单元基于检测到的电平对可变增益放大器执行精细反馈控制。

公开(公告)号：US20050179136A1

公开(公告)日：2005-08-18

申请号：US11108638

申请日：2005-04-19

申请人： Takatoshi Katsura ,  Kenji Itoh ,  Hiroaki Nagano ,  Youji Isota ,  Mitsuhiro Shimozawa ,  Tadashi Takagi ,  Noriharu Suematsu ,  Masayoshi Ono ,  Kenichi Maeda

发明人： Takatoshi Katsura ,  Kenji Itoh ,  Hiroaki Nagano ,  Youji Isota ,  Mitsuhiro Shimozawa ,  Tadashi Takagi ,  Noriharu Suematsu ,  Masayoshi Ono ,  Kenichi Maeda

IPC分类号： H01L23/48 ,  H01L23/50 ,  H01L23/538 ,  H01L23/552 ,  H01L23/64 ,  H01L23/66 ,  H03H3/00 ,  H03H7/01 ,  H05K1/00 ,  H05K1/02 ,  H05K1/14 ,  H05K1/18 ,  H05K9/00

CPC分类号： H05K1/0216 ,  H01L23/50 ,  H01L23/5383 ,  H01L23/552 ,  H01L23/645 ,  H01L2924/0002 ,  H01L2924/15312 ,  H01L2924/3011 ,  H03H3/00 ,  H03H7/01 ,  H05K1/0237 ,  H05K1/0298 ,  H05K1/141 ,  H05K9/0039 ,  H05K2201/0715 ,  H05K2201/09254 ,  H05K2201/09972 ,  H01L2924/00

摘要： In a multi-layer substrate module receiving from an external earth node (20) supply of a reference potential (Vss) for grounding, a plurality of ground lines (170-1, 170-2, 170-3) are provided respectively corresponding to a plurality of internal circuits (210, 220, 230). Moreover, a common node (Ncmn) for coupling the ground lines (170-1, 170-2, 170-3) is provided in an insulating layer (105C) of the multi-layer substrate module. The common node (Ncmn) is electrically coupled to the earth node 20 through a ground pin terminal 204 shared by the plurality of internal circuits (210, 220, 230). Preferably, the common node (Ncmn) is provided in the lowest insulating layer of the multi-layer substrate module. Thus, parasitic inductance of the portion through which an earth current flows, that is, the portion common to the plurality of internal circuits (210, 220, 230), can be suppressed with a small number of ground pin terminals. Accordingly, the inflow phenomenon of the earth current between the plurality of internal circuits (210, 220, 230) is prevented, enabling stable operation.

摘要翻译： 在从外部接地节点（20）接收用于接地的参考电位（Vss）的多层衬底模块中，分别提供多个接地线（170-1,170-2,170-3），其对应于 多个内部电路（210,220,230）。 此外，用于耦合接地线（170-1,170-2,170-3）的公共节点（Ncmn）设置在多层衬底模块的绝缘层（105C）中。 公共节点（Ncmn）通过由多个内部电路（210,220,230）共享的接地引脚端子204电耦合到接地节点20。 优选地，公共节点（Ncmn）设置在多层基板模块的最低绝缘层中。 因此，可以用少量的接地引脚端子来抑制接地电流流过的部分的寄生电感，即多个内部电路（210,220,230）共同的部分的寄生电感。 因此，防止了多个内部电路（210,220,230）之间的接地电流的流入现象，从而能够稳定地工作。

公开(公告)号：US06906411B1

公开(公告)日：2005-06-14

申请号：US10048500

申请日：2000-06-29

申请人： Takatoshi Katsura ,  Kenji Itoh ,  Hiroaki Nagano ,  Youji Isota ,  Mitsuhiro Shimozawa ,  Tadashi Takagi ,  Noriharu Suematsu ,  Masayoshi Ono ,  Kenichi Maeda

发明人： Takatoshi Katsura ,  Kenji Itoh ,  Hiroaki Nagano ,  Youji Isota ,  Mitsuhiro Shimozawa ,  Tadashi Takagi ,  Noriharu Suematsu ,  Masayoshi Ono ,  Kenichi Maeda

IPC分类号： H01L23/48 ,  H01L23/50 ,  H01L23/538 ,  H01L23/552 ,  H01L23/64 ,  H01L23/66 ,  H03H3/00 ,  H03H7/01 ,  H05K1/00 ,  H05K1/02 ,  H05K1/14 ,  H05K1/18 ,  H05K9/00 ,  H01L23/485

CPC分类号： H05K1/0216 ,  H01L23/50 ,  H01L23/5383 ,  H01L23/552 ,  H01L23/645 ,  H01L2924/0002 ,  H01L2924/15312 ,  H01L2924/3011 ,  H03H3/00 ,  H03H7/01 ,  H05K1/0237 ,  H05K1/0298 ,  H05K1/141 ,  H05K9/0039 ,  H05K2201/0715 ,  H05K2201/09254 ,  H05K2201/09972 ,  H01L2924/00

摘要： In a multi-layer substrate module receiving from an external earth node supply of a reference potential for grounding, a plurality of ground lines are provided respectively corresponding to a plurality of internal circuits. Moreover, a common node for coupling the ground lines is provided in an insulating layer of the multi-layer substrate module. The common node is electrically coupled to the earth node through a ground pin terminal shared by the plurality of internal circuits. Preferably, the common node is provided in the lowest insulating layer of the multi-layer substrate module. Thus, parasitic inductance of the portion through which an earth current flows, that is, the portion common to the plurality of internal circuits, can be suppressed with a small number of ground pin terminals. Accordingly, the inflow phenomenon of the earth current between the plurality of internal circuits is prevented, enabling stable operation.

摘要翻译： 在从外部接地节点电源接收用于接地的参考电位的多层基板模块中，分别对应于多个内部电路设置多个接地线。 此外，用于耦合接地线的公共节点设置在多层基板模块的绝缘层中。 公共节点通过由多个内部电路共享的接地引脚端子电耦合到接地节点。 优选地，公共节点设置在多层衬底模块的最低绝缘层中。 因此，可以用少量的接地引脚端子来抑制接地电流流过的部分的寄生电感，即多个内部电路公用的部分。 因此，防止了多个内部电路之间的接地电流的流入现象，从而能够稳定地工作。

公开(公告)号：US06721551B2

公开(公告)日：2004-04-13

申请号：US09968773

申请日：2001-10-03

申请人： Hiroaki Nagano ,  Kazuhiro Mori ,  Kenji Itoh

发明人： Hiroaki Nagano ,  Kazuhiro Mori ,  Kenji Itoh

IPC分类号： H04B126

CPC分类号： H03D7/163 ,  H03L7/23 ,  H04B1/00 ,  H04B1/403 ,  H04B1/406

摘要： A reception carrier wave, a first transmission carrier wave, and a second transmission carrier wave are generated. The reception carrier wave is mixed with the reception wave to produce a reception signal. The frequency of the first transmission carrier wave is halved, and the first transmission carrier wave is mixed with a transmission signal to produce a modulated wave. The second transmission carrier wave is mixed with the modulated wave to produce a transmission wave. Since neither the frequency of the first transmission carrier wave nor the frequency of the second transmission carrier wave agrees with each of the frequency of the modulated wave and the frequency fTX, the degradation of the modulation precision on a transmission side can be prevented. Also, because the frequency of the first transmission carrier wave is halved, the interference of the first transmission carrier wave with the transmission signal band can be reduced.

摘要翻译： 产生接收载波，第一传输载波和第二传输载波。 接收载波与接收波混合以产生接收信号。 第一传输载波的频率减半，并且第一传输载波与传输信号混合以产生调制波。 第二传输载波与调制波混合以产生传输波。 由于第一发送载波的频率和第二发送载波的频率都不与调制波的频率和频率fTX一致，所以可以防止发送侧的调制精度的劣化。 此外，由于第一传输载波的频率减半，所以可以减少第一传输载波与传输信号频带的干扰。

公开(公告)号：US06324385B1

公开(公告)日：2001-11-27

申请号：US09679449

申请日：2000-10-04

申请人： Hiroaki Nagano ,  Kazuhiro Mori ,  Kenji Itoh

发明人： Hiroaki Nagano ,  Kazuhiro Mori ,  Kenji Itoh

IPC分类号： H04B140

CPC分类号： H03D7/163 ,  H03L7/23 ,  H04B1/00 ,  H04B1/403 ,  H04B1/406

摘要： A reception carrier wave, of which a frequency fL0 agrees with a frequency fRX of a reception wave, is generated, a first transmission carrier wave, of which a frequency fL1 is equivalent to twice of a difference value between the reception frequency and a frequency fTX of a transmission wave, is generated, and a second transmission carrier wave of which a frequency fL2 is equivalent to a difference value between the frequency fL0 and the frequency fL1, is generated. The reception carrier wave is mixed with the reception wave to produce a reception signal. The frequency of the first transmission carrier wave is halved, and the first transmission carrier wave is mixed with a transmission signal to produce a modulated wave. The second transmission carrier wave is mixed with the modulated wave to produce a transmission wave. Therefore, because either the frequency of the first transmission carrier wave or the frequency of the second transmission carrier wave does not agree with each of the frequency of the modulated wave and the frequency fTX, the degradation of the modulation precision on a transmission side can be prevented. Also, because the frequency of the first transmission carrier wave is halved, the interference of the first transmission carrier wave with the transmission signal band can be reduced.

摘要翻译： 产生频率fL0与接收波的频率fRX一致的接收载波，其频率fL1等于接收频率和频率fTX之间的差值的两倍的第一传输载波 并且产生频率fL2等于频率fL0和频率fL1之间的差值的第二传输载波。 接收载波与接收波混合以产生接收信号。 第一传输载波的频率减半，并且第一传输载波与传输信号混合以产生调制波。 第二传输载波与调制波混合以产生传输波。 因此，由于第一发送载波的频率或第二发送载波的频率与调制波的频率和频率fTX不一致，所以发送侧的调制精度的劣化可以是 防止了 此外，由于第一传输载波的频率减半，所以可以减少第一传输载波与传输信号频带的干扰。