公开(公告)号：US20050186934A1

公开(公告)日：2005-08-25

申请号：US11055085

申请日：2005-02-11

Applicant: Hiroshi Yajima ,  Kaoru Ishida

Inventor： Hiroshi Yajima ,  Kaoru Ishida

IPC: H01L27/04 ,  G11C7/00 ,  G11C29/00 ,  H01L21/822 ,  H04B1/06 ,  H04B15/00

CPC classification number: H04B15/00

Abstract: An object of the present invention is to provide a semiconductor integrated circuit that reduces the influence of noise from a digital circuit block on an analog circuit block, both the circuit blocks being integrated on the same semiconductor substrate. In the wiring that passes through near the analog circuit block and the digital circuit block, having a grounding unit that performs alternate grounding makes it possible to reduce the influence of noise from the digital circuit block on the analog circuit block.

Abstract translation: 本发明的目的是提供一种减少来自数字电路块的噪声对模拟电路块的影响的半导体集成电路，两个电路块都集成在同一半导体衬底上。 在通过模拟电路块附近的布线和数字电路块中，具有执行交替接地的接地单元可以减少模拟电路块上数字电路块的噪声的影响。

公开(公告)号：US20050090218A1

公开(公告)日：2005-04-28

申请号：US10969927

申请日：2004-10-22

Applicant: Kaoru Ishida ,  Toshiakira Ando

Inventor： Kaoru Ishida ,  Toshiakira Ando

IPC: H03B5/12 ,  H03L7/08 ,  H03L7/089 ,  H03L7/099 ,  H03L7/18 ,  H04B1/06 ,  H04B1/26 ,  H04B7/00

CPC classification number: H03L7/18 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1293 ,  H03L7/0891 ,  H03L7/099

Abstract: A differential type voltage control oscillator is formed of a differential tank circuit, an oscillation transistor, and a differential variable capacitance circuit. The differential variable capacitance circuit has a configuration wherein at least one pair of varactor diodes are connected in an anti-parallel manner, and are separated by means of a plurality of capacitors in a direct current manner. In addition, a differential control voltage is generated by a charge pump circuit which is controlled by the output of a phase comparator, and the differential control voltage is directly applied across the anodes and the cathodes of the varactor diodes.

Abstract translation: 差分式电压控制振荡器由差分谐振电路，振荡晶体管和差分可变电容电路构成。 差分可变电容电路具有这样的结构，其中至少一对变容二极管以反并联方式连接，并且通过多个电容器以直流方式分离。 此外，通过由相位比较器的输出控制的电荷泵电路产生差分控制电压，并且差动控制电压直接施加在变容二极管的阳极和阴极之间。

公开(公告)号：US20050035818A1

公开(公告)日：2005-02-17

申请号：US10946301

申请日：2004-09-22

Applicant: Toru Matsuura ,  Kaoru Ishida ,  Makoto Sakakura ,  Seiji Fujiwara

Inventor： Toru Matsuura ,  Kaoru Ishida ,  Makoto Sakakura ,  Seiji Fujiwara

IPC: H03F1/26 ,  H03F1/32

CPC classification number: H03F1/3241 ,  H03F1/3229 ,  H03F1/3247 ,  H03F1/3276 ,  H03F1/3282

Abstract: An amplitude frequency characteristic adjustment circuit 106 is provided downstream of and connected to a distortion generation circuit 105. An amplitude difference between low-frequency-side and high-frequency-side distortion voltages is adjusted by the amplitude frequency characteristic adjustment circuit 106, and then their amplitudes and phases are adjusted by a vector adjustment circuit 107. This configuration makes it possible to suppress simultaneously both of low-frequency-side and high-frequency-side distortion voltages of a distortion generated by a wide-band class-AB power amplifier even if they are different in amplitude and phase.

Abstract translation: 振幅频率特性调整电路106设置在失真发生电路105的下游并连接到失真发生电路105.通过振幅频率特性调整电路106调整低频侧和高频侧失真电压之间的振幅差，然后 它们的幅度和相位由矢量调整电路107调整。这种配置使得可以同时抑制由宽带AB类功率放大器产生的失真的低频侧和高频侧失真电压两者 即使它们的幅度和相位不同。

公开(公告)号：US06720829B2

公开(公告)日：2004-04-13

申请号：US10323836

申请日：2002-12-20

Applicant: Toshimitsu Matsuyoshi ,  Kaoru Ishida ,  Seiji Fujiwara

Inventor： Toshimitsu Matsuyoshi ,  Kaoru Ishida ,  Seiji Fujiwara

IPC: H03F126

CPC classification number: H03F1/3247 ,  H03F1/3229 ,  H03F1/3282

Abstract: Provided is a distortion-compensated amplifying circuit capable of suppressing distortion without attenuating a level of carrier components, and further obtaining a larger amount of suppression of distortion, which has not been achievable by conventional distortion-compensated amplifying circuit using a pre-distortion technique. A balanced type amplifying circuit is structured such that amplifiers 115 and 116 placed in parallel are sandwiched by 90-degree hybrid circuits 114 and 117. The 90-degree hybrid circuit 114 is supplied with an original signal including carrier components and a distortion signal including distortion equal in amplitude and opposite in phase (having a phase difference of 180 degrees) to distortion that occurs when the original signal is amplified by the amplifiers 115 and 116. The 90-degree hybrid circuit 114 performs a process of differential amplification with a phase difference of 180 degrees between the original signal and the distortion signal. Then, the amplified original signal and distortion signal outputted from the 90-degree hybrid circuit 117 are combined by a directional coupler 118, thereby canceling distortion components included in both signals with each other.

Abstract translation: 提供了一种失真补偿放大电路，其能够抑制失真而不衰减载波分量的电平，并且进一步获得更大量的失真抑制，这是使用预失真技术的常规失真补偿放大电路尚未实现的。 平衡型放大电路被构造成使得并联放置的放大器115和116被90度混合电路114和117夹持。向90度混合电路114提供包括载波分量的原始信号和包括失真的失真信号 在相位差（相位差为180度）上与放大器115和116放大原始信号时发生的失真相反.90度混合电路114进行差分放大处理，具有相位差 在原始信号和失真信号之间为180度。 然后，由90度混合电路117输出的放大的原始信号和失真信号由定向耦合器118组合，从而消除两个信号中包含的失真分量。

公开(公告)号：US06563395B2

公开(公告)日：2003-05-13

申请号：US09758427

申请日：2001-01-12

Applicant: Kaoru Ishida ,  Masayuki Miyaji ,  Hiroaki Kosugi ,  Shin'ichi Kugou

Inventor： Kaoru Ishida ,  Masayuki Miyaji ,  Hiroaki Kosugi ,  Shin'ichi Kugou

IPC: H01P510

CPC classification number: H01P5/10 ,  H01P5/12 ,  H03F3/602

Abstract: A balun design incorporating the functions of a splitter (combiner) which can be employed in a high power amplifier circuit configuration. The balun is formed of a dielectric multilayer board with conductor patterns on each conductor pattern layer. The balun includes the propagation of a half of an input signal to an in-phase output terminal, and also propagating a fourth of the input signal to first and second opposite-phase output terminals, the signal propagated to the first and second opposite-phase output terminals lagging 180 degrees behind the signal propagated to the in-phase output terminal. The balun provides the output signals at the first and second opposite-phase output terminals 180° out of phase employing through holes in the main line and coupling lines for promoting electromagnetic coupling therebetween.

Abstract translation: 平衡 - 不平衡变压器设计结合了可用于高功率放大器电路配置的分路器（组合器）的功能。 平衡 - 不平衡变换器由在每个导体图案层上具有导体图案的电介质多层板形成。 平衡 - 不平衡变换器包括将输入信号的一半传播到同相输出端子，并且还将第四输入信号传播到第一和第二反相输出端子，该信号传播到第一和第二相位相位 输出端子滞后于传播到同相输出端子的信号后方180度。 平衡 - 不平衡变压器在第一和第二反相输出端子处提供输出信号，180°异相采用主线中的通孔和用于促进电磁耦合的连接线。

公开(公告)号：US6130897A

公开(公告)日：2000-10-10

申请号：US925574

申请日：1997-09-08

Applicant: Kaoru Ishida ,  Hiroaki Kosugi ,  Takashi Enoki ,  Yoichi Morinaga ,  Makoto Aisaka

Inventor： Kaoru Ishida ,  Hiroaki Kosugi ,  Takashi Enoki ,  Yoichi Morinaga ,  Makoto Aisaka

IPC: H04B1/40 ,  H04B1/50 ,  H04B1/54 ,  H04B1/56 ,  H04J3/00 ,  H04J4/00 ,  H04L5/16

CPC classification number: H04B1/006 ,  H04B1/005 ,  H04B1/0057 ,  H04B1/406 ,  H04B1/408 ,  H04B1/54 ,  H04B1/50 ,  H04B1/56

Abstract: A Time Division Multiple Access FDD/TDD dual mode system includes a switch having first and second common terminals and first and second terminals. Also included are a TDD demodulation circuit for demodulating a TDD received signal from the first common terminal; a FDD demodulation circuit for demodulating a FDD received signal; and a FDD/TDD modulation circuit for modulating and impressing the modulated signal onto the second common terminal. A FDD transmission band selection circuit is connected to the first terminal, and a TDD transmission-reception band selection circuit is connected to the second terminal. The first common terminal of the switch is connected to the second terminal during TDD reception, whereas the second common terminal is connected to the first terminal during FDD transmission and to the second terminal during TDD transmission.

Abstract translation: 时分多址FDD / TDD双模式系统包括具有第一和第二公共终端以及第一和第二终端的交换机。 还包括用于解调来自第一公共终端的TDD接收信号的TDD解调电路; 用于解调FDD接收信号的FDD解调电路; 以及FDD / TDD调制电路，用于将调制信号调制和压入第二公共终端。 FDD传输频带选择电路连接到第一终端，并且TDD发送接收频带选择电路连接到第二终端。 在TDD接收期间，交换机的第一公共终端连接到第二终端，而在FDD传输期间第二公共终端连接到第一终端，在TDD传输期间连接到第二终端。

公开(公告)号：US06114911A

公开(公告)日：2000-09-05

申请号：US275385

申请日：1999-03-24

Applicant: Hiroshi Iwai ,  Kaoru Ishida ,  Hiroaki Kosugi ,  Takashi Enoki ,  Youichi Morinaga

Inventor： Hiroshi Iwai ,  Kaoru Ishida ,  Hiroaki Kosugi ,  Takashi Enoki ,  Youichi Morinaga

IPC: H01P5/10 ,  H03F3/195 ,  H03F3/21 ,  H03F3/26 ,  H03F3/60 ,  H03F3/68

CPC classification number: H03F3/602 ,  H03F3/211

Abstract: A power amplifier has an input signal splitting part for splitting the input signal into two output signals each having equal power and phase difference of 180 degrees with respect to each other. A first signal on-off selection part for switching conduction of one of the output signals. A first amplifying part for amplifying the signal from the first signal on-off selection part. A second signal on-off selection part for switching conduction of the signal outputted from the first amplifying part. A second amplifying part for amplifying the other of the output signals from the input signal splitting part. An output signal combining part for providing a phase difference of 180 degrees between the output of the second signal on-off selection part and the output of the second amplifying part and combining them. A bias on-off part for switching on and off at least the first amplifying part, wherein, when the output level is high, the first and second signal on-off selection parts are turned on and, at the same time, the first and second amplifying parts are turned on by the bias on-off part, so that push-pull operation is performed, and when the output level is low, the first and second signal on-off selection parts are turned off and the first amplifying part is turned off by the bias on-off part and the second amplifying part performs single-ended operation.

Abstract translation: 功率放大器具有用于将输入信号分离成两个输出信号的输入信号分离部件，每个输出信号具有彼此相等的功率和相位差为180度的相位差。 第一信号开关选择部分，用于切换输出信号之一的导通。 用于放大来自第一信号开 - 关选择部分的信号的第一放大部分。 第二信号开关选择部分，用于切换从第一放大部分输出的信号的导通。 第二放大部分，用于放大来自输入信号分离部分的另一个输出信号。 输出信号组合部分，用于在第二信号开关选择部分的输出和第二放大部分的输出之间提供180度的相位差，并将它们组合。 用于至少对第一放大部分进行导通和截止的偏压开关部分，其中，当输出电平较高时，第一和第二信号开 - 关选择部分被接通，同时第一和第 第二放大部分由偏置开 - 关部分导通，从而执行推挽操作，并且当输出电平低时，第一和第二信号开 - 关选择部分被关断，第一放大部分是 由偏置开 - 关部分关断，第二放大部分执行单端操作。

公开(公告)号：US6081694A

公开(公告)日：2000-06-27

申请号：US174537

申请日：1998-10-19

Applicant: Toru Matsuura ,  Kaoru Ishida ,  Hiroaki Kosugi ,  Youichi Morinaga

Inventor： Toru Matsuura ,  Kaoru Ishida ,  Hiroaki Kosugi ,  Youichi Morinaga

IPC: H03F3/60 ,  F42B12/36 ,  H03F3/189 ,  H03F3/24 ,  H04B1/04 ,  H04B1/40 ,  H04B1/44

CPC classification number: H04B1/0458 ,  H03F1/56 ,  H03F3/193 ,  H03F3/245 ,  H04B1/006 ,  H03F2200/111 ,  H03F2200/387

Abstract: Disclosed is a transmitter for switching and transmitting signals of plural frequency bands. For example, the signals of two frequency bands are switched and transmitted. For the transmission in a first frequency band, of transistors 104, 105 are turned off, whereby a power amplifying transistor 102 is matched by an input wide band matching circuit 101 and an output main matching circuit 103, so that the high efficiency linear amplification is accomplished. For the transmission in a second frequency band, the transistor 104 is turned on while the transistor 105 is turned off, whereby the power amplifying transistor 102 is matched by a capacitance 108 as well as the input wide band matching circuit 101 and the output main matching circuit 103, so that the high efficiency linear amplification is accomplished. An external switch for switching the matching circuits is thus unnecessary.

Abstract translation: 公开了一种用于切换和发送多个频带的信号的发射机。 例如，切换并发送两个频带的信号。 对于第一频带中的传输，晶体管104,105截止，功率放大晶体管102由输入宽带匹配电路101和输出主匹配电路103匹配，使得高效线性放大为 完成了 为了在第二频带中的传输，晶体管104导通，而晶体管105截止，由此功率放大晶体管102与电容108以及输入宽带匹配电路101和输出主匹配 电路103，从而实现高效线性放大。 因此，不需要用于切换匹配电路的外部开关。

公开(公告)号：US6006080A

公开(公告)日：1999-12-21

申请号：US910940

申请日：1997-08-08

Applicant: Hidenobu Kato ,  Keiichi Nakayama ,  Seiichi Yamaguchi ,  Takashi Enoki ,  Manabu Yamaguchi ,  Kaoru Ishida ,  Hiroaki Kosugi

Inventor： Hidenobu Kato ,  Keiichi Nakayama ,  Seiichi Yamaguchi ,  Takashi Enoki ,  Manabu Yamaguchi ,  Kaoru Ishida ,  Hiroaki Kosugi

IPC: H03H7/38 ,  H03D7/12 ,  H04B1/26 ,  H04B1/40 ,  H04B1/08 ,  H04B1/110

CPC classification number: H04B1/0057 ,  H04B1/005 ,  H04B1/26 ,  H04B1/406

Abstract: A receiving mixer device for a mobile radio transceiver which operates with multiple modulation modes and within multiple frequency bands. The receiving mixer includes a plurality of mixers each for converting a received radio frequency signal to an intermediate frequency, a common connection part to which output terminals of the mixers are connected in common, a plurality of impedance conversion circuits connected to the common connection part, and output terminals for the impedance conversion circuits. The number of mixers is equal to the number of frequency bands of the received radio frequency signal. The number of the intermediate frequencies is equal to the number of modulation modes of the received radio frequency signal. The number of the impedance conversion circuits is equal to the number of intermediate frequencies, and each of the impedance conversion circuits passes only a single predetermined frequency of the intermediate frequencies used by the device.

Abstract translation: 一种用于移动无线电收发机的接收混频器装置，其以多种调制模式并在多个频带内工作。 接收混频器包括多个混频器，每个混频器用于将接收的射频信号转换成中频;共同连接部分，混频器的输出端共同连接;多个阻抗转换电路，连接到公共连接部分， 和用于阻抗转换电路的输出端子。 混频器的数量等于所接收的射频信号的频带数。 中间频率的数量等于所接收的射频信号的调制模式的数量。 阻抗转换电路的数量等于中频数，并且每个阻抗转换电路仅通过器件使用的中频的单个预定频率。

公开(公告)号：US5852384A

公开(公告)日：1998-12-22

申请号：US844039

申请日：1997-04-18

Applicant: Makoto Sakakura ,  Hisanaga Miyoshi ,  Kouji Hashimoto ,  Nobuo Fuse ,  Hiroaki Kosugi ,  Kaoru Ishida

Inventor： Makoto Sakakura ,  Hisanaga Miyoshi ,  Kouji Hashimoto ,  Nobuo Fuse ,  Hiroaki Kosugi ,  Kaoru Ishida

IPC: H03B5/18 ,  H03B5/12

CPC classification number: H03B5/1847

Abstract: A dual band oscillator circuit according to the present invention comprises an oscillator circuit portion that oscillates at a first frequency, an oscillator circuit portion that oscillates at a second frequency, a buffer amplifier circuit portion to which an output of the first oscillator circuit portion is input through a first stage-to-stage coupling element and an output of the second oscillator circuit portion is input through a second stage-to-stage coupling element. Operation is switched between the first and second oscillator circuits by an externally applied control voltage signal.

Abstract translation: 根据本发明的双频带振荡器电路包括以第一频率振荡的振荡器电路部分，以第二频率振荡的振荡器电路部分，输入第一振荡器电路部分的输出的缓冲放大器电路部分 通过第一级到级耦合元件，并且第二振荡器电路部分的输出通过第二级到级耦合元件输入。 通过外部施加的控制电压信号在第一和第二振荡器电路之间切换操作。