公开(公告)号：US08219043B2

公开(公告)日：2012-07-10

申请号：US12644546

申请日：2009-12-22

申请人： Takatoshi Kawai ,  Kaoru Ishida

发明人： Takatoshi Kawai ,  Kaoru Ishida

IPC分类号： H04B1/00

CPC分类号： H04B1/0475 ,  H03F1/34 ,  H03F3/24 ,  H04B2001/0433

摘要： A radio transmission apparatus according to the present invention detects an output current of a power supply section that varies in response to a variation of the output impedance of an amplification section, and corrects a distortion of the input/output characteristic of the amplification section by using an LUT corresponding to the detected output current. In addition, a threshold used for switching an LUT is caused to be different depending on a switching direction between LUTs, thereby suppressing frequent occurrence of switching of the LUT.

摘要翻译： 根据本发明的无线电发送装置检测响应于放大部分的输出阻抗的变化而变化的电源部分的输出电流，并且通过使用来校正放大部分的输入/输出特性的失真 对应于检测到的输出电流的LUT。 此外，根据LUT之间的切换方向，使用于切换LUT的阈值不同，从而抑制LUT的切换的频繁发生。

公开(公告)号：US08219050B1

公开(公告)日：2012-07-10

申请号：US13433705

申请日：2012-03-29

申请人： Takatoshi Kawai ,  Kaoru Ishida

发明人： Takatoshi Kawai ,  Kaoru Ishida

IPC分类号： H04B1/04

CPC分类号： H04B1/0475 ,  H03F1/34 ,  H03F3/24 ,  H04B2001/0433

摘要： A radio transmission apparatus according to the present invention detects an output current of a power supply section that varies in response to a variation of the output impedance of an amplification section, and corrects a distortion of the input/output characteristic of the amplification section by using an LUT corresponding to the detected output current. In addition, a threshold used for switching an LUT is caused to be different depending on a switching direction between LUTs, thereby suppressing frequent occurrence of switching of the LUT.

公开(公告)号：US20100167798A1

公开(公告)日：2010-07-01

申请号：US12644546

申请日：2009-12-22

申请人： Takatoshi KAWAI ,  Kaoru Ishida

发明人： Takatoshi KAWAI ,  Kaoru Ishida

IPC分类号： H04M1/00 ,  H04B1/04

CPC分类号： H04B1/0475 ,  H03F1/34 ,  H03F3/24 ,  H04B2001/0433

摘要： A radio transmission apparatus according to the present invention detects an output current of a power supply section that varies in response to a variation of the output impedance of an amplification section, and corrects a distortion of the input/output characteristic of the amplification section by using an LUT corresponding to the detected output current. In addition, a threshold used for switching an LUT is caused to be different depending on a switching direction between LUTs, thereby suppressing frequent occurrence of switching of the LUT.

摘要翻译： 根据本发明的无线电发送装置检测响应于放大部分的输出阻抗的变化而变化的电源部分的输出电流，并且通过使用来校正放大部分的输入/输出特性的失真 对应于检测到的输出电流的LUT。 此外，根据LUT之间的切换方向，使用于切换LUT的阈值不同，从而抑制LUT的切换的频繁发生。

公开(公告)号：US07979038B2

公开(公告)日：2011-07-12

申请号：US12160874

申请日：2007-01-16

申请人： Yosuke Mitani ,  Shunsuke Hirano ,  Kaoru Ishida

发明人： Yosuke Mitani ,  Shunsuke Hirano ,  Kaoru Ishida

IPC分类号： H04B1/04

CPC分类号： H03L7/1976 ,  H03C3/0908 ,  H03C3/0925 ,  H03C3/0933 ,  H03C3/0941 ,  H03C3/095 ,  H03C3/0966

摘要： Provided are a PLL modulation circuit, a radio transmission device, and a radio communication device capable of maintaining a modulation accuracy for modulation of a wide band. The PLL modulation circuit (100) includes: a PLL unit (110), first modulation signal input means for inputting a first modulation signal to a divider (112) or a phase comparator (113) of the PLL unit (110); second modulation signal input means for DA converting the digital modulation signal in a DA converter (116) to generate an analog second modulation signal and inputting it to a voltage control oscillator (111) of the PLL unit (110); a second divider for dividing the output signal of the voltage control oscillator (111); and control means for generating a center frequency control signal, a gain control signal, and a second division ration control signal according to the channel selection signal and the control voltage inputted to the voltage control oscillator (111) and supplying them to the divider (112), the DA converter (116), and the second divider (114), respectively.

摘要翻译： 提供了能够维持宽带调制的调制精度的PLL调制电路，无线发送装置以及无线通信装置。 PLL调制电路（100）包括：PLL单元（110），用于将第一调制信号输入到PLL单元（110）的分频器（112）或相位比较器（113）的第一调制信号输入装置; 第二调制信号输入装置，用于在DA转换器（116）中转换数字调制信号，以产生模拟第二调制信号并将其输入到PLL单元（110）的电压控制振荡器（111）; 用于分压电压控制振荡器（111）的输出信号的第二分频器; 以及控制装置，用于根据输入到电压控制振荡器（111）的通道选择信号和控制电压产生中心频率控制信号，增益控制信号和第二分频控制信号，并将其提供给分频器（112） ），DA转换器（116）和第二分频器（114）。

公开(公告)号：US07747230B2

公开(公告)日：2010-06-29

申请号：US11750640

申请日：2007-05-18

申请人： Taichi Ikedo ,  Kaoru Ishida

发明人： Taichi Ikedo ,  Kaoru Ishida

IPC分类号： H04B1/04 ,  H04K3/00

CPC分类号： H04B1/04 ,  H03F1/34 ,  H03F3/24 ,  H04B2001/0433

摘要： A transmission modulation apparatus capable of dealing with characteristic variations of a high-frequency power amplifier without always forming an amplitude loop. Transmission modulation apparatus 100 is configured with level detector 140 that receives input of a level detection control signal and detects the output signal of high-frequency power amplifier 130, and offset voltage correcting section 150 that corrects an offset voltage using collinear approximation including a first point where the relationship between the power supply voltage value and the output voltage starts to shift from linear to non-linear based on an output signal of level detector 140 and a second point where output voltage is a minimum. Offset voltage correction is adaptively executed, and linearity between the voltage value of the baseband amplitude signal and the output voltage of high-frequency power amplifier 130 when the voltage value of the baseband amplitude signal is low is compensated.

摘要翻译： 一种传输调制装置，能够处理高频功率放大器的特性变化，而不必总是形成振幅环路。 传输调制装置100配置有电平检测器140，其接收电平检测控制信号的输入并检测高频功率放大器130的输出信号，以及偏移电压校正部150，其使用包括第一点的共线近似来校正偏移电压 其中电源电压值和输出电压之间的关系基于电平检测器140的输出信号和输出电压最小的第二点开始从线性转变为非线性。 自适应地执行偏移电压校正，并且补偿基带振幅信号的电压值低时基带幅度信号的电压值与高频功率放大器130的输出电压之间的线性度。

公开(公告)号：US07723137B2

公开(公告)日：2010-05-25

申请号：US11497157

申请日：2006-07-31

申请人： Kaoru Ishida ,  Tsuguhiro Korenaga

发明人： Kaoru Ishida ,  Tsuguhiro Korenaga

IPC分类号： H01L21/00

CPC分类号： H01S5/02252 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01S5/0226 ,  H01S5/02276 ,  H01S5/0228 ,  H01S5/024 ,  H01S5/02438 ,  H01S5/4087 ,  H01L2924/00014

摘要： In a conventional optical device which mounts a semiconductor light emitting element, the processing is difficult and a manufacturing process cost is expensive because of the necessity of forming via holes in a substrate.An optical device comprises a laser diode which needs heat radiation, a glass substrate which is integrally molded into a mold glass for arranging the laser diode, a metallic heat sink arranged at an edge of the glass substrate for radiating heat generated from the laser diode, wherein an active layer proximity surface of the laser diode is arranged to oppose the heat sink, both of them are connected with a conductive paste through a lateral groove formed in the glass substrate.

摘要翻译： 在安装半导体发光元件的常规光学器件中，由于需要在衬底中形成通孔，所以处理困难并且制造工艺成本昂贵。 光学装置包括需要散热的激光二极管，将整体模制成用于配置激光二极管的模具玻璃的玻璃基板，布置在玻璃基板的边缘处的用于辐射由激光二极管产生的热量的金属散热器， 其中激光二极管的有源层接近表面被布置成与散热器相对，它们都通过形成在玻璃基板中的横向沟槽与导电浆料相连。

公开(公告)号：US07616702B2

公开(公告)日：2009-11-10

申请号：US11653284

申请日：2007-01-16

申请人： Kaoru Ishida

发明人： Kaoru Ishida

IPC分类号： H04L27/36

CPC分类号： H04W52/52 ,  H03G3/3042 ,  H03G3/3047

摘要： A transmission circuit is provided which can quickly and accurately control an output power of a transmission signal even when the transmission signal is output at a high modulation rate and in a wide dynamic range. A switching control section controls a modulation method changing section to change a modulation method of a modulated signal generating section to a modulation method having a narrow dynamic range before controlling a switching section to switch amplification sections. An output adjustment control section controls output adjusting sections so that a difference in level between a transmission signal which is smoothed by a smoothing circuit and is before the amplification sections are switched, and a transmission signal which is after the amplification sections are switched, is caused to be smaller than a predetermined difference threshold value, when the modulated signal generating section operates in the modulation method having the narrow dynamic range.

摘要翻译： 即使传输信号以高调制率和宽的动态范围输出，也能够快速准确地控制发送信号的输出功率的发送电路。 切换控制部分控制调制方法改变部分，以在控制切换部分以切换放大部分之前将调制信号产生部分的调制方法改变为具有窄动态范围的调制方法。 输出调整控制部分控制输出调节部分，使得平滑电路平滑并且在放大部分之前被切换的发送信号之间的电平差和放大部分之后的发送信号被切换 当调制信号生成部分以具有窄动态范围的调制方法操作时，小于预定差值阈值。

公开(公告)号：US07493091B2

公开(公告)日：2009-02-17

申请号：US11477855

申请日：2006-06-30

申请人： Toru Matsuura ,  Hisashi Adachi ,  Kaoru Ishida

发明人： Toru Matsuura ,  Hisashi Adachi ,  Kaoru Ishida

IPC分类号： H04B1/02 ,  H04B1/04

CPC分类号： H04L27/362 ,  H03F1/02 ,  H03F3/24 ,  H03F3/245 ,  H03G3/001 ,  H03G3/004 ,  H03G3/3047 ,  H04B2001/045 ,  H04L27/206 ,  H04W52/22 ,  H04W52/225 ,  H04W52/228 ,  H04W52/36

摘要： A transmission circuit operating at a high efficiency and a low distortion is provided. A signal generation section 11 generates a vector signal and an amplitude signal. A vector modulation section 13 performs vector modulation on the vector signal. An amplification section 15 amplifies the signal processed with the vector modulation. A signal processing section 12 performs predetermined signal processing on the amplitude signal and outputs the resultant signal. A regulator 14 controls a voltage to be supplied to the amplification section 15 based on the magnitude of the signal which is output from the signal processing section 12. The signal processing section 12 determines whether or not the amplitude signal exceeds a threshold value at an interval of a predetermined time period, selects a discrete value to be output based on the determination result, and outputs a signal having the selected discrete value.

摘要翻译： 提供以高效率和低失真运行的传输电路。 信号生成部11生成矢量信号和振幅信号。 矢量调制部13对矢量信号进行矢量调制。 放大部分15放大用矢量调制处理的信号。 信号处理部12对振幅信号进行规定的信号处理，并输出合成信号。 调节器14基于从信号处理部分12输出的信号的大小来控制要提供给放大部分15的电压。信号处理部分12确定幅度信号是否以一定间隔超过阈值 根据确定结果选择要输出的离散值，并输出具有所选离散值的信号。

公开(公告)号：US20050197084A1

公开(公告)日：2005-09-08

申请号：US11072266

申请日：2005-03-07

申请人： Toshinori Hamasaki ,  Kaoru Ishida

发明人： Toshinori Hamasaki ,  Kaoru Ishida

IPC分类号： H03D7/14 ,  H04B7/00

CPC分类号： H03D7/1425 ,  H03D7/1433 ,  H03D7/1458 ,  H03D7/165 ,  H03D2200/0043 ,  H03D2200/0047

摘要： A mixer circuit is provided with a quadrature demodulator including a Gilbert cell in which a first differential amplifier and a switching circuit are vertically stacked for connection and a bypass circuit including a second differential amplifier having a pair of differential input terminals short-circuited with each other, and provided in parallel with the first differential amplifier. Correction of a DC offset is performed by inactivating the first differential amplifier and activating the second differential amplifier, and detecting the DC offset under such state.

摘要翻译： 混频器电路设置有包括吉尔伯特单元的正交解调器，其中第一差分放大器和开关电路被垂直堆叠用于连接，并且旁路电路包括具有彼此短路的一对差分输入端子的第二差分放大器 并且与第一差分放大器并联提供。 通过停用第一差分放大器并激活第二差分放大器以及在这种状态下检测DC偏移来执行DC偏移的校正。

公开(公告)号：US06940346B2

公开(公告)日：2005-09-06

申请号：US10433582

申请日：2001-11-30

申请人： Masayuki Miyaji ,  Kaoru Ishida ,  Toshimitsu Matsuyoshi ,  Hisashi Adachi ,  Seiji Fujiwara

发明人： Masayuki Miyaji ,  Kaoru Ishida ,  Toshimitsu Matsuyoshi ,  Hisashi Adachi ,  Seiji Fujiwara

IPC分类号： H03F1/32 ,  H03F3/66 ,  H03F1/26

CPC分类号： H03F1/3229

摘要： The conventional feedforward amplifier is unable to suppress distortion components efficiently. The present invention provides a feedforward amplifier wherein the vector adjustor is adjusted so that (1) suppression is performed on only the distortion component generated within a predetermined frequency range out of the range of frequencies to be suppressed in which distortion components to be suppressed occur or (2) the suppression of the distortion component generated within the predetermined frequency range is greater than the suppression of the distortion component generated within the frequency range other than the predetermined frequency range out of the range of frequencies to be suppressed, and the pre-distortion circuit is adjusted so that at least the distortion component generated within the frequency range other than the predetermined frequency range is suppressed.

摘要翻译： 传统的前馈放大器不能有效地抑制失真分量。 本发明提供一种前馈放大器，其中矢量调节器被调整为使得（1）仅对在要抑制的失真分量发生的待抑制的频率范围内的预定频率范围内产生的失真分量进行抑制，或者 （2）在预定频率范围内产生的失真分量的抑制大于在要抑制的频率范围之外的预定频率范围之外的频率范围内产生的失真分量的抑制，并且预失真 电路被调整为至少抑制了在预定频率范围之外的频率范围内产生的失真分量。