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51. 发明授权

US07696830B2 Digital controlled oscillator, frequency synthesizer, radio communication apparatus using the same, and control method for the same 有权
标题翻译：数字控制振荡器，频率合成器，使用其的无线电通信装置及其控制方法
公开(公告)号：US07696830B2
公开(公告)日：2010-04-13
申请号：US11968909
申请日：2008-01-03
申请人： Atsushi Ohara , Hisashi Adachi
发明人： Atsushi Ohara , Hisashi Adachi
IPC分类号： H03B5/12 , H03L7/085 , H03L7/099
CPC分类号： H03L7/0991 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B5/1265 , H03C3/20
摘要： The digital controlled oscillator includes a variable capacitance section having a first capacitor array of a plurality of first variable capacitors and a second capacitor array of a plurality of second variable capacitors, and generates a signal having an oscillation frequency corresponding to the capacitance value of the variable capacitance section. The first capacitance change amount in the individual first variable capacitors is a value obtained by multiplying the second capacitance change amount in the individual second variable capacitors by an integer equal to or more than 2, and the number of second variable capacitors is equal to or more than a value obtained by subtracting 1 from the integer equal to or more than 2.
摘要翻译：数字控制振荡器包括具有多个第一可变电容器的第一电容器阵列和多个第二可变电容器的第二电容器阵列的可变电容部分，并且产生具有与变量的电容值对应的振荡频率的信号电容部分。各个第一可变电容器中的第一电容变化量是通过将各个第二可变电容器中的第二电容变化量乘以等于或大于2的整数而获得的值，并且第二可变电容器的数量等于或等于比从等于或大于2的整数减去1得到的值。

52. 发明授权

US07573949B2 Transmitter circuit, transmission method, and communications device using the transmitter circuit 有权
标题翻译：发射机电路，传输方式和使用发射机电路的通信设备
公开(公告)号：US07573949B2
公开(公告)日：2009-08-11
申请号：US11520836
申请日：2006-09-14
申请人： Toru Matsuura , Hisashi Adachi
发明人： Toru Matsuura , Hisashi Adachi
IPC分类号： H04L27/00
CPC分类号： H04L27/361 , H04B1/0475
摘要： Provided is a transmitter circuit capable of outputting a transmission signal having high accuracy irrespective of bandwidth and operating with high efficiency. In the transmitter circuit 1, a delay detection section 18 selects two observation points at which angle change amounts of the complex envelope are larger than a predetermined angle threshold value and selects, as a singular point, an observation point at which a magnitude of the complex envelope is larger than that at one of the two observation points. Based on a positional relationship among the singular point, a preceding symbol, and a succeeding symbol, a relationship between delay times of the amplitude signal and the phase signal is detected. Based on the relationship between delay times of the amplitude signal and the phase signal, a delay setting section 19 sets a delay time in a delay adjuster 12. Based on the set delay time, the delay adjuster 12 adjusts the delay times of the amplitude signal and the phase signal.
摘要翻译：提供一种发射机电路，其能够输出具有高精度的传输信号，而不管带宽和高效率地操作。在发送电路1中，延迟检测部18选择复数包络的角度变化量大于规定的角度阈值的2个观察点，作为奇异点，选择复数的大小的观察点信封大于两个观测点之一。基于奇数点，前一符号和后续符号之间的位置关系，检测振幅信号的延迟时间与相位信号之间的关系。基于振幅信号的延迟时间与相位信号之间的关系，延迟设定部分19设置延迟调节器12中的延迟时间。延迟调整器12根据设定的延迟时间调整振幅信号的延迟时间和相位信号。

53. 发明申请

US20090115523A1 DISCRETE TIME AMPLIFIER CIRCUIT AND ANALOG-DIGITAL CONVERTER 有权
标题翻译：离散时间放大器电路和模拟数字转换器
公开(公告)号：US20090115523A1
公开(公告)日：2009-05-07
申请号：US12261704
申请日：2008-10-30
申请人： Taiji AKIZUKI , Tomoaki Maeda , Hisashi Adachi
发明人： Taiji AKIZUKI , Tomoaki Maeda , Hisashi Adachi
IPC分类号： H03F3/45 , H03M1/12
CPC分类号： H03F3/45475 , H03F3/45183 , H03F3/45946 , H03F2200/411 , H03F2203/45136 , H03F2203/45166 , H03F2203/45421 , H03F2203/45424 , H03F2203/45512 , H03F2203/45551 , H03F2203/45634 , H03M1/1245
摘要： The present invention is intended to attain simplified circuit configuration and low current consumption in a discrete time amplifier circuit and an AD converter, to improve the convergence from the transient response state to the steady state of the amplifier circuit and to reduce noise and distortion owing to the variation in the output common-mode voltage. The discrete time amplifier circuit and the AD converter are provided with a switched-capacitor common-mode feedback (CMFB) circuit capable of detecting and feeding back the output common-mode voltage at every sampling timing in the case that the circuit operates at double sampling timing (every ½ cycle).
摘要翻译：本发明旨在在离散时间放大器电路和AD转换器中实现简化的电路配置和低电流消耗，以改善从瞬态响应状态到放大器电路的稳定状态的收敛，并且由于输出共模电压的变化。离散时间放大器电路和AD转换器配备有开关电容共模反馈（CMFB）电路，其能够在电路以双倍采样的情况下在每个采样定时检测和反馈输出共模电压时间（每½周期）。

54. 发明授权

US07493091B2 Transmission circuit and communication device 有权
标题翻译：传输电路和通信设备
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。

55. 发明申请

US20080139138A1 Transmission circuit 有权
公开(公告)号：US20080139138A1
公开(公告)日：2008-06-12
申请号：US12000082
申请日：2007-12-07
申请人： Toru Matsuura , Hisashi Adachi
发明人： Toru Matsuura , Hisashi Adachi
IPC分类号： H03C1/52 , H03C3/09
CPC分类号： H04L27/361
摘要： A transmission circuit capable of transmitting a modulated wave signal using polar modulation in a broad band and with low power consumption is provided. The transmission circuit generates an amplitude signal and a phase signal based on data to be transmitted, and separates the amplitude signal into a low-frequency amplitude signal and a high-frequency amplitude signal. The transmission circuit amplitude-modulates the phase signal in a broad band using the high-frequency amplitude signal in a high-frequency voltage control section 104 and an amplitude modulation section 105 and amplitude-modulates the phase signal into low power consumption using the low-frequency amplitude signal in a low-frequency voltage control section 106 and amplitude modulation section 107.

56. 发明授权

US07199652B2 Amplifier; and transmitter and communication device incorporating the same 有权
标题翻译：放大器; 以及包括其的发射机和通信设备
公开(公告)号：US07199652B2
公开(公告)日：2007-04-03
申请号：US10988499
申请日：2004-11-16
申请人： Shigeru Morimoto , Hisashi Adachi
发明人： Shigeru Morimoto , Hisashi Adachi
IPC分类号： G06G7/12 , H03F1/34
CPC分类号： H03F3/19 , H03F2200/138
摘要： The present invention provides an amplifier for amplifying a high-frequency signal and outputting an amplified signal. The amplifier includes: an amplification element which is a bipolar transistor or a field-effect transistor; and an inductor connected between a base and a collector or between a gate and a drain of the amplification element. The inductance of the inductor is chosen so that, within a predetermined frequency range, a parallel resonance occurs with a parasitic capacitor of the amplification element and an intrinsic capacitor of the amplification element, the intrinsic capacitor being a base-collector capacitance or a gate-drain capacitance.
摘要翻译：本发明提供一种用于放大高频信号并输出放大信号的放大器。放大器包括：放大元件，其是双极晶体管或场效应晶体管; 以及连接在基极和集电极之间或放大元件的栅极和漏极之间的电感器。选择电感器的电感，使得在预定频率范围内，放大元件的寄生电容器和放大元件的本征电容器发生并联谐振，本征电容器是基极集电极电容或栅极 - 漏电容。

57. 发明申请

US20050202790A1 Data converter device and data conversion method, and transmitter circuit, communications device and electronic device using the same 有权
标题翻译：数据转换装置和数据转换方法，以及发射机电路，通信装置和使用该装置的电子装置
公开(公告)号：US20050202790A1
公开(公告)日：2005-09-15
申请号：US11074677
申请日：2005-03-09
申请人： Toru Matsuura , Hisashi Adachi
发明人： Toru Matsuura , Hisashi Adachi
IPC分类号： H03M3/00 , H04L27/36 , G11C11/34 , H01Q11/12 , H04B1/04
CPC分类号： H03M3/368 , H03M3/458
摘要： The present invention aims to provide a transmitter circuit that is capable of suppressing quantization noise and operating with a high efficiency, a data converter section 13 and a data conversion method for use therein, and a communications device using the same. The data converter section 13 of the present invention performs a predetermined data conversion operation on an input signal. The data converter section 13 includes: a signal processing section 133 for discretizing the input signal to produce a signal having a lower resolution magnitude-wise than that of the input signal; a subtractor section 134 for subtracting the input signal from the signal having a lower resolution to extract quantization noise; a filter 135 for extracting quantization noise near an intended wave frequency; and a subtractor section 136 for removing the quantization noise near the intended wave frequency from the signal having a lower resolution.
摘要翻译：本发明旨在提供一种能够抑制量化噪声和高效率操作的发射机电路，数据转换器部分13及其中使用的数据转换方法，以及使用该发射机电路的通信装置。本发明的数据转换器部分13对输入信号执行预定的数据转换操作。数据转换器部分13包括：信号处理部分133，用于离散输入信号以产生具有比输入信号幅度更小的分辨率的信号; 减法器部分134，用于从具有较低分辨率的信号中减去输入信号以提取量化噪声; 用于提取预期波频附近的量化噪声的滤波器135; 以及用于从具有较低分辨率的信号中去除预期波频率附近的量化噪声的减法器部分136。

58. 发明申请

US20050195918A1 Transmitting circuit, communication equipment, audio equipment, video equipment, and transmitting method 有权
标题翻译：传输电路，通讯设备，音响设备，视频设备及传送方式
公开(公告)号：US20050195918A1
公开(公告)日：2005-09-08
申请号：US11072216
申请日：2005-03-04
申请人： Toru Matsuura , Hisashi Adachi
发明人： Toru Matsuura , Hisashi Adachi
IPC分类号： H03F1/02 , H03F1/26 , H03F1/32 , H03F3/217 , H03H17/00 , H04L27/04
CPC分类号： H03F1/32 , H03F1/0211 , H03F1/26 , H03F3/217 , H03F2200/324 , H03F2200/331
摘要： The data from the orthogonal data generator is quantized by the vector data converter so as to become, for example, a binary value of 0 and a real number in magnitude. The output of the vector converter is modulated by the modulator, and is inputted to the amplifier. In the amplifier, the envelope of the signal to be inputted is quantized. That is, the signal of a constant envelope becomes a signal which is turned ON and OFF, so that a highly efficient nonlinear amplifier can be used. The quantization noise generated in the vector data converter is removed by the filter, and after that, the signal of a low distortion and a low noise is outputted from the output terminal. The isolation unit is connected between the amplifier and the filter, avoiding effects on the output impedance of the amplifier from the filter, so that a signal of a low distortion can be outputted.
摘要翻译：来自正交数据发生器的数据由矢量数据转换器量化，以便成为例如二进制值0和实数数值。矢量转换器的输出由调制器调制，并被输入到放大器。在放大器中，对要输入的信号的包络进行量化。也就是说，恒定包络的信号变成ON和OFF的信号，从而可以使用高效的非线性放大器。通过滤波器去除矢量数据转换器中产生的量化噪声，之后从输出端子输出低失真和低噪声的信号。隔离单元连接在放大器和滤波器之间，避免了滤波器对放大器的输出阻抗的影响，从而可以输出低失真的信号。

59. 发明授权

US06940346B2 Feedforward amplifier, communication apparatus, feedforward amplification method, program and medium 失效
标题翻译：前馈放大器，通信装置，前馈放大方法，程序和介质
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。

60. 发明申请

US20050190002A1 Voltage-controlled oscillator, radio communication apparatus and voltage-controlled oscillation method 有权
标题翻译：压控振荡器，无线通信装置和压控振荡方法
公开(公告)号：US20050190002A1
公开(公告)日：2005-09-01
申请号：US10676654
申请日：2003-10-01
申请人： Koji Takinami , Hisashi Adachi , Tokio Endoh
发明人： Koji Takinami , Hisashi Adachi , Tokio Endoh
IPC分类号： H03B1/00 , H03B5/00 , H03B5/12 , H03B7/06 , H03C3/22 , H04B1/16
CPC分类号： H03B5/1215 , H03B5/1228 , H03B5/1253 , H03B5/1265 , H03B5/1293 , H03B2201/025 , H03L7/099
摘要： A voltage-controlled oscillator having an inductor circuit, n pieces (n is two or more) of variable capacitance circuit having variable capacitance elements, negative resistance circuits, and reference voltage generation means of generating a reference voltage from a power supply voltage, and wherein a predetermined reference voltage is inputted to some terminals of the variable capacitance elements of the n pieces of variable capacitance circuit, a control voltage is inputted to the other terminals thereof, and of the variable capacitance elements of the n pieces of variable capacitance circuits, the predetermined reference voltage inputted to some terminals of the variable capacitance elements of at least two pieces of the variable capacitance circuit is different.
摘要翻译：一种具有电感电路的压控振荡器，具有可变电容元件的可变电容电路的n个（n为2个以上），负电阻电路和从电源电压生成基准电压的基准电压生成单元，其中，将预定的参考电压输入到n个可变电容电路的可变电容元件的一些端子，将一个控制电压输入到其它端子，以及n个可变电容电路的可变电容元件，输入至少两个可变电容电路的可变电容元件的一些端子的预定参考电压是不同的。

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