公开(公告)号：US07092683B2

公开(公告)日：2006-08-15

申请号：US10811827

申请日：2004-03-30

申请人： Koichiro Tanaka ,  Mitsuru Tanabe ,  Noriaki Saito

发明人： Koichiro Tanaka ,  Mitsuru Tanabe ,  Noriaki Saito

IPC分类号： H04B1/02 ,  H04B1/04

CPC分类号： H04B1/0475

摘要： A transmission circuit includes: a modulated signal generator for outputting a modulated signal; an envelope detector for outputting an amplitude modulated voltage; an amplitude roll-off LPF for attenuating the amplitude modulated voltage by using a damping property represented by an exponential function in which an argument is exponentially proportional to a frequency; a power-supply-voltage generator for generating a power supply voltage in accordance with an amplitude value of the amplitude modulated voltage; a phase detector for outputting a phase modulated signal; a phase roll-off LPF for attenuating the phase modulated signal by using a damping property represented by an exponential function in which an argument is exponentially proportional to an offset frequency with respect to a center frequency; and an RF power amplifier.

摘要翻译： 发送电路包括：调制信号发生器，用于输出调制信号; 用于输出幅度调制电压的包络检测器; 用于通过使用其中参数与频率成指数成比例的指数函数表示的阻尼特性来衰减幅度调制电压的幅度滚降LPF; 电源电压发生器，用于根据幅度调制电压的振幅值产生电源电压; 相位检测器，用于输出相位调制信号; 相位滚降LPF，用于通过使用由参数与偏移频率相对于中心频率指数成比例的指数函数表示的衰减特性来衰减相位调制信号; 和RF功率放大器。

公开(公告)号：US07043314B2

公开(公告)日：2006-05-09

申请号：US11081655

申请日：2005-03-17

申请人： Mitsuyuki Hatanaka ,  Mitsuru Tanabe

发明人： Mitsuyuki Hatanaka ,  Mitsuru Tanabe

IPC分类号： G06F17/00

CPC分类号： G10L19/0212 ,  G10L19/00 ,  G10L19/0019 ,  G11B20/10527 ,  G11B2020/00043 ,  G11B2020/10546 ,  H03M7/30

摘要： In order to obtain coded data which does not strike viewers and listeners as being incongruous, when plural audio data are to be coded, a coding program groups the respective audio data into one audio data, codes the grouped audio data in sequence with a predetermined number of samples being treated as units, and sets delimitations corresponding to the delimitations of the plural audio data in the coded data at coding units of the coded data.

公开(公告)号：US20060068697A1

公开(公告)日：2006-03-30

申请号：US10522741

申请日：2003-10-23

申请人： Mitsuru Tanabe ,  Takaharu Saeki ,  Yoshihisa Minami ,  Koichiro Tanaka ,  Noriaki Saito

发明人： Mitsuru Tanabe ,  Takaharu Saeki ,  Yoshihisa Minami ,  Koichiro Tanaka ,  Noriaki Saito

IPC分类号： H04K3/00

CPC分类号： H03F1/025 ,  H03F1/02 ,  H03F1/0244 ,  H03F3/24 ,  H03F2200/507 ,  H03F2200/511 ,  H04B2001/045

摘要： The present invention provides a transmitter conforming to the EER method in a wide frequency band at high efficiency. For this purpose, the amplitude component of a modulated signal is input to the power supply terminal of a high-frequency power amplifier 130, the I and Q quadrature signals thereof are input to the high-frequency input terminal of the high-frequency power amplifier 130, and the original modulated signal is obtained from the output of the high-frequency power amplifier 130. A collector voltage is supplied from DC-DC converter group 615 having output voltages being different sequentially to an emitter follower 729 via a switch group 621. One of the outputs of the DC-DC converters 616 to 620 is selected depending on the level of the amplitude component as the collector voltage and supplied to the emitter follower, whereby the difference between the emitter voltage of he emitter follower 729 and the collector voltage of the emitter follower 729 is made smaller and the efficiency of the emitter follower 729 is raised; furthermore, the power supply voltage of the high-frequency power amplifier 130 is voltage-converted by the emitter follower 729, whereby operation in a wide frequency band is made possible.

摘要翻译： 本发明提供了一种符合EER方法的发射机，在宽频带内具有高效率。 为此，调制信号的幅度分量被输入到高频功率放大器130的电源端子，其I和Q正交信号被输入到高频功率放大器的高频输入端 130，并且从高频功率放大器130的输出获得原始调制信号。 从具有输出电压的DC-DC转换器组615经由开关组621向发射极跟随器729提供集电极电压。 DC-DC转换器616至620的输出之一根据作为集电极电压的振幅分量的电平来选择，并提供给射极跟随器，由此发射极跟随器729的发射极电压与集电极电压 使发射极跟随器729的功率越小，发射极跟随器729的效率越高; 此外，高频功率放大器130的电源电压由射极跟随器729进行电压转换，从而可以在宽频带中进行操作。

公开(公告)号：US07019340B2

公开(公告)日：2006-03-28

申请号：US10184999

申请日：2002-07-01

申请人： Daisuke Watanabe ,  Mitsuru Tanabe

发明人： Daisuke Watanabe ,  Mitsuru Tanabe

IPC分类号： H01L21/00

CPC分类号： H01L29/66242 ,  H01L29/2003 ,  H01L29/267 ,  H01L29/7371

摘要： A bipolar transistor device having first and second semiconductor layers each formed on a substrate and composed of a Group III–V compound semiconductor of a first conductivity type and a third semiconductor layer formed between the first and second semiconductor layers and composed of a group IV semiconductor of a second conductivity type.

公开(公告)号：US07007012B2

公开(公告)日：2006-02-28

申请号：US09974383

申请日：2001-10-10

申请人： Toshihiro Morita ,  Mitsuru Tanabe

发明人： Toshihiro Morita ,  Mitsuru Tanabe

IPC分类号： G06F17/30

CPC分类号： G06F17/30017 ,  G06F17/30067 ,  Y10S707/99933 ,  Y10S707/99943 ,  Y10S707/99945

摘要： A music piece managing unit judges whether or not a music piece file name corresponding to a music piece ID received from a playing processing unit exists in a corresponding music piece file storing unit, and in the event that judgment is made that the file name does not exist, a drive letter in the obtained file name is changed to the drive letter of a currently-connected drive, thereby generating a new file name. The music piece managing unit then judges whether or not the newly-generated file name exists in the corresponding music piece file storing unit, and in the event that judgment is made that the file name exists, the file name of the music piece is updated to the newly-generated file name. Thus, music piece files can be readily searched for, even in the event that the configuration of the drives has been changed.

摘要翻译： 乐曲管理单元判断与播放处理单元接收到的乐曲ID相对应的乐曲文件名是否存在于相应乐曲文件存储单元中，并且在判断文件名不是 存在，获取的文件名中的驱动器号被更改为当前连接的驱动器的驱动器盘符，从而生成新的文件名。 然后，乐曲管理单元判断新生成的文件名是否存在于相应的乐曲文件存储单元中，并且在判断出文件名存在的情况下，音乐片段的文件名被更新为 新生成的文件名。 因此，即使在驱动器的配置已经改变的情况下，也可以容易地搜索音乐片文件。

公开(公告)号：US06965805B2

公开(公告)日：2005-11-15

申请号：US09734390

申请日：2000-12-11

申请人： Mitsuyuki Hatanaka ,  Mitsuru Tanabe

发明人： Mitsuyuki Hatanaka ,  Mitsuru Tanabe

IPC分类号： H03M7/30 ,  G06F17/00

CPC分类号： G10L19/0212 ,  G10L19/00 ,  G10L19/0019 ,  G11B20/10527 ,  G11B2020/00043 ,  G11B2020/10546 ,  H03M7/30

摘要： In order to obtain coded data which does not strike viewers and listeners as being incongruous, when plural audio data are to be coded, a coding program groups the respective audio data into one audio data, codes the grouped audio data in sequence with a predetermined number of samples being treated as units, and sets delimitations corresponding to the delimitations of the plural audio data in the coded data at coding units of the coded data.

公开(公告)号：US20050202789A1

公开(公告)日：2005-09-15

申请号：US11073860

申请日：2005-03-08

申请人： Mitsuru Tanabe ,  Koichiro Tanaka ,  Noriaki Saito

发明人： Mitsuru Tanabe ,  Koichiro Tanaka ,  Noriaki Saito

IPC分类号： H03F1/32 ,  H03F3/38 ,  H04B1/04 ,  H04B1/40

CPC分类号： H03F1/3247 ,  H03F1/0227 ,  H03F1/025 ,  H03F1/3241 ,  H03F2200/102 ,  H03F2200/336 ,  H04B1/0475 ,  H04B2001/0425

摘要： g(x) Storing means stores a correction function y=g(x) corresponding to the distortion of a high frequency power amplifier as a function of a voltage x provided to a power supply terminal of the high frequency power amplifier. Operating means receives the correction function g(x) and a complex vector modulation signal z provided from modulation signal generating means, then causes an inverse function g−1 to operate on the absolute value and the phase of the complex vector modulation signal z having undergone polar coordinate conversion, and thereby outputs z′=g−1(z). This data is provided to the high frequency power amplifier. Further, triangular wave storing means is provided for storing a triangular wave having the same amplitude as that of the modulation signal. Either the triangular wave signal outputted from the triangular wave storing means or the modulation signal z′ is selectively provided to the high frequency power amplifier.

摘要翻译： g（x）存储装置存储与高频功率放大器的失真相对应的校正函数y = g（x）作为提供给高频功率放大器的电源端子的电压x的函数。 操作装置接收从调制信号发生装置提供的校正函数g（x）和复矢量调制信号z，然后使反函数g -1至...对绝对值和 经过极坐标转换的复矢量调制信号z，从而输出z'= g -1（z）。 该数据被提供给高频功率放大器。 此外，三角波存储装置用于存储具有与调制信号相同幅度的三角波。 从三角波存储装置输出的三角波信号或调制信号z'被选择性地提供给高频功率放大器。

公开(公告)号：US20050152471A1

公开(公告)日：2005-07-14

申请号：US11029875

申请日：2005-01-05

申请人： Koichiro Tanaka ,  Mitsuru Tanabe

发明人： Koichiro Tanaka ,  Mitsuru Tanabe

IPC分类号： H03F1/32 ,  H03F1/02 ,  H03F1/06 ,  H03F3/24 ,  H04B1/04 ,  H04J11/00 ,  H04L27/04 ,  H04L27/36

CPC分类号： H04L27/367 ,  H03F1/0205 ,  H03F1/0211 ,  H03F1/32 ,  H03F3/24 ,  H03F2200/102

摘要： A transmitting device is provided, which is capable of outputting a modulated wave which suffers little deterioration in modulation accuracy, spectrum and the like, even in the case of using a high-frequency power amplifier in which the fluctuation in phase difference between input and output is large when a bias voltage is changed. A complex number table (6) outputs a complex number that compensates for a phase shift of a high-frequency power amplifier (5) in accordance with the value of the amplitude component of a modulated signal output from an envelope detecting section (2). A complex number multiplier (7) outputs a phase-compensated modulated signal to a quadrature modulator (4). An amplitude conversion table (8) converts the amplitude component output from the envelope detecting section into a value in a predetermined range that excludes zero. Based on this value, a voltage source (3) generates a bias voltage and provides the bias voltage to a power supply terminal of the high-frequency power amplifier. The high-frequency power amplifier is driven by the bias voltage, amplifies a high-frequency band phase-compensated modulated signal output from the quadrature modulator, and outputs a modulated wave whose amplitude and phase vary.

摘要翻译： 提供一种发送装置，其能够输出调制精度，频谱等几乎没有劣化的调制波，即使在使用其中输入和输出之间的相位差的波动的高频功率放大器的情况下 当偏置电压发生变化时，电流变大。 复数表（6）根据从包络检测部（2）输出的调制信号的振幅分量的值，输出补偿高频功率放大器（5）的相移的复数。 复数乘法器（7）将相位补偿调制信号输出到正交调制器（4）。 振幅转换表（8）将从包络检测部输出的幅度分量转换成不包括零的预定范围内的值。 基于该值，电压源（3）产生偏置电压并将偏置电压提供给高频功率放大器的电源端子。 高频功率放大器由偏置电压驱动，放大从正交调制器输出的高频带相位补偿调制信号，并输出振幅和相位变化的调制波。

公开(公告)号：US06724259B2

公开(公告)日：2004-04-20

申请号：US10144728

申请日：2002-05-15

申请人： Mitsuru Tanabe

发明人： Mitsuru Tanabe

IPC分类号： H03G330

CPC分类号： H03F1/22 ,  H03F3/72 ,  H03G1/04

摘要： It is an object of the present invention to provide a variable gain amplifier of which impedance does not change when gains are switched. A transistor is turned on in a high-gain state and transistors are turned on in a low-gain state to switch between the gains, the area of the transistor is made equal to the area of the transistor to keep the same output load conditions and the same output impedance both in the high-gain state and the low-gain state. While the input impedance of a transistor becomes high because the transistor in a high-gain path is turned off in the low-gain mode, current passes through a transistor to lower the impedance of the collector of a transistor and, as a result, the input impedance is kept the same both in the high-gain state and the low-gain state.

摘要翻译： 本发明的目的是提供一种可变增益放大器，当增益被切换时阻抗不变。 晶体管以高增益状态导通，晶体管以低增益状态导通，以在增益之间切换，使晶体管的面积等于晶体管的面积以保持相同的输出负载条件，并且 在高增益状态和低增益状态下均具有相同的输出阻抗。 虽然由于高增益路径中的晶体管在低增益模式下被切断，晶体管的输入阻抗变高，但是电流通过晶体管以降低晶体管的集电极的阻抗，结果是 在高增益状态和低增益状态下，输入阻抗保持相同。

公开(公告)号：US06710380B2

公开(公告)日：2004-03-23

申请号：US10147806

申请日：2002-05-20

申请人： Junko Iwanaga ,  Yorito Ota ,  Mitsuru Tanabe

发明人： Junko Iwanaga ,  Yorito Ota ,  Mitsuru Tanabe

IPC分类号： H01L31109

CPC分类号： H01L29/868

摘要： The diode of the present invention includes: a cathode electrode and an anode electrode that are disposed on a semiconductor substrate and are spaced apart from each other; and a shielding metal member placed between the cathode and anode electrodes.

摘要翻译： 本发明的二极管包括：阴极电极和阳极电极，其设置在半导体衬底上并彼此间隔开; 以及放置在阴极和阳极之间的屏蔽金属构件。