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1. 发明申请

US20130034250A1 AMPLIFIER 审中-公开
标题翻译：放大器
公开(公告)号：US20130034250A1
公开(公告)日：2013-02-07
申请号：US13641303
申请日：2011-05-13
申请人： Seigo Ozaki , Rintaro Sukegawa
发明人： Seigo Ozaki , Rintaro Sukegawa
IPC分类号： H03F99/00
CPC分类号： H03F3/183 , H03F1/0227 , H03F1/3205 , H03F3/2173 , H03F2200/504
摘要： Disclosed is an amplifier with which output signal distortion can be reduced, and deterioration in power efficiency can be reduced. The amplifier is provided with a power supply voltage control unit (11) that generates a voltage control signal from a simple envelope of an input signal in order to control a variable voltage power supply (12). The power supply voltage control unit (11) is composed of: a slope comparison processing unit (112) that calculates the slope required to generate a voltage control signal; a total delay time calculation unit (113) that calculates the sum of the delay times between the dots produced by the slope comparison process; and a voltage control signal generation unit (114) that generates a voltage control signal in such a manner that the waveform formed by the voltage control signal, which controls the variable voltage power supply (12), constitutes a waveform that reflects the selected slope or the sum of the slew rate and delay time. The voltage control signal is output to the variable voltage power supply (12) after being adjusted to match the timing at which the input signal is amplified by an amplifier unit (14).
摘要翻译：公开了可以减少输出信号失真的放大器，能够降低功率效率的劣化。放大器设置有电源电压控制单元（11），其从输入信号的简单包络生成电压控制信号，以便控制可变电压电源（12）。电源电压控制单元（11）包括：斜率比较处理单元（112），其计算产生电压控制信号所需的斜率; 总延迟时间计算单元（113），其计算由斜率比较处理产生的点之间的延迟时间之和; 以及电压控制信号生成单元（114），其生成电压控制信号，使得由控制可变电压电源（12）的电压控制信号形成的波形构成反映所选择的斜率的波形或转换速率和延迟时间的总和。电压控制信号在被调整为与放大器单元（14）放大输入信号的定时相匹配后输出到可变电压电源（12）。

2. 发明申请

US20130077806A1 AMPLIFIER APPARATUS 有权
公开(公告)号：US20130077806A1
公开(公告)日：2013-03-28
申请号：US13701554
申请日：2011-06-16
申请人： Mingxue Zhang , Seigo Ozaki , Tsuyoshi Haga
发明人： Mingxue Zhang , Seigo Ozaki , Tsuyoshi Haga
IPC分类号： H03F3/20
CPC分类号： H03F3/183 , H03F1/0233 , H03F1/26 , H03F3/20 , H03F3/217 , H03F3/2173 , H03F2200/03 , H03F2200/351
摘要： Disclosed is a technique for reducing noise superimposed on an output signal while keeping loop gain constant without increasing the circuit scale and without changing the transfer function of the amplifier apparatus (frequency characteristics of gain and phase). According to the technique, there are included a power-supply voltage control unit 7 for detecting the amplitude level S9 of an input audio signal S1 and outputting power with a voltage value indicated by target set voltage value information Vs corresponding to this amplitude level S9, and a PWM modulation unit 2 including a PWM converter 23 for converting the pulse width of the input audio signal S1 and a correction unit for correcting the signal modulated by the PWM converter 23. The PWM modulation unit 2 corrects the pulse width of a PWM signal S5 modulated by the PWM converter 23 so that the correction unit will cancel out a change in amplification gain of a power amplification unit 4 according to the target set voltage value information Vs.

3. 发明授权

US09136799B2 Amplifier using voltage variable power supply 有权
标题翻译：放大器使用电压可变电源
公开(公告)号：US09136799B2
公开(公告)日：2015-09-15
申请号：US13808420
申请日：2011-05-13
申请人： Seigo Ozaki , Hirotsugu Kawata
发明人： Seigo Ozaki , Hirotsugu Kawata
IPC分类号： H03G3/20 , H03F3/185 , H03F1/02 , H03F3/217 , H03F1/32
CPC分类号： H03F3/185 , H03F1/0211 , H03F1/0222 , H03F1/3205 , H03F3/1855 , H03F3/2173 , H03F2200/171 , H03F2200/504
摘要： An amplifier is capable of reducing the quantization error caused by conversion accuracy in an A/D converter circuit and, particularly, capable of improving the S/N ratio and distortion rate when an input audio signal is small. In an amplifier (1) using a voltage variable power supply (73) as a power supply to follow an input audio signal level (S1) to the amplifier (1) in order to increase or decrease the level of supply voltage supplied to a power amplifier stage (4), when the level of source power of the power amplifier stage (4) is changed, the voltage level of a reference voltage supplied to an A/D converter (62) of a negative feedback circuit is controlled.
摘要翻译：放大器能够降低由A / D转换器电路中的转换精度引起的量化误差，特别是能够在输入音频信号较小时提高S / N比和失真率。在使用电压可变电源（73）作为电源的放大器（1）中，以将输入音频信号电平（S1）跟随到放大器（1），以便增加或减小提供给功率的电源电平放大器级（4），当功率放大器级（4）的电源电平改变时，控制提供给负反馈电路的A / D转换器（62）的参考电压的电压电平。

4. 发明授权

US08686792B2 Amplifying device 有权
标题翻译：放大装置
公开(公告)号：US08686792B2
公开(公告)日：2014-04-01
申请号：US13381213
申请日：2011-01-05
申请人： Rintaro Sukegawa , Seigo Ozaki
发明人： Rintaro Sukegawa , Seigo Ozaki
IPC分类号： H03G3/20
CPC分类号： H03F1/0222 , H03F1/3205 , H03F3/185 , H03F3/2173 , H03F2200/03 , H03F2200/102 , H03F2200/351 , H03F2200/504
摘要： A supply voltage controller 11 includes a simplified envelope creating unit 111 that calculates an envelope of an input audio signal according to an input audio signal from an external device, creates a supply voltage control signal so that a waveform of the supply voltage control signal follows a waveform of the envelope, and outputs the supply voltage control signal to a voltage variable power supply 12 a constant time before the input audio signal is amplified by the amplifier 14. Accordingly, an amplifying device can be provided which can reduce the distortion of the output signal not depending on a change in the slew rate of the voltage variable power supply 12 and suppress the deterioration of power efficiency.
摘要翻译：电源电压控制器11包括简化的包络线生成单元111，其根据来自外部设备的输入音频信号计算输入音频信号的包络，产生电源电压控制信号，使得电源电压控制信号的波形遵循波形，并且在输入音频信号被放大器14放大之前的恒定时间内将电源电压控制信号输出到电压可变电源12.因此，可以提供可以减小输出的失真的放大装置信号不依赖于电压可变电源12的转换速率的变化，并且抑制功率效率的劣化。

5. 发明授权

US06687680B1 Electronic cash register system 失效
标题翻译：电子收款机系统
公开(公告)号：US06687680B1
公开(公告)日：2004-02-03
申请号：US09620905
申请日：2000-07-20
申请人： Kesayoshi Iguchi , Hiroyuki Tanaka , Masanobu Shigeno , Takashi Kondoh , Kazuya Murakami , Toshiaki Aoki , Hidenori Endoh , Seigo Ozaki , Tetsuya Kojima , Yoshio Ishibashi
发明人： Kesayoshi Iguchi , Hiroyuki Tanaka , Masanobu Shigeno , Takashi Kondoh , Kazuya Murakami , Toshiaki Aoki , Hidenori Endoh , Seigo Ozaki , Tetsuya Kojima , Yoshio Ishibashi
IPC分类号： G06F1760
CPC分类号： G07G1/0054 , G01G19/4144 , G06Q20/20 , G06Q20/202 , G06Q20/209
摘要： Weight data of articles for sale is stored and a total weight is calculated every order. Measured weight of the prepared articles in a package is compared with the calculated total weight. If the measured weight substantially disagrees with the calculated total weight, error information is provided to the operator to correctly package the articles. Comparison may be effected every order number. An addition flag may be further stored with weight data every article to indicate that the article is a target of weight measuring. A non-addition key indicating that the corresponding article is not packaged may be further provided. When the non-addition key is depressed, the weight of the corresponding article is not included in the total weight. The total weight may be printed on the receipt, so that the operator can compare the printed total weight with the measured weight. The total weight may be printed with bar codes. A balance has a bar code reader for comparison. The bar code reader may be provided to the electronic cash register. A controller communicating with the electronic cash register may be further provided at a kitchen for comparison. The order number may be printed on a receipt read by a bar code reader. The controller has a monitor display for informing the error. The difference in weight may be further displayed.
摘要翻译：存储待售物品的重量数据，并按每个订单计算总重量。将包装中制备的物品的测量重量与计算的总重量进行比较。如果测量的重量与计算出的总重量基本上不一致，则向操作者提供错误信息以正确地包装物品。每个订单号都可以进行比较。附加标志可以进一步与每个物品的重量数据一起存储以指示物品是重量测量的目标。可以进一步提供指示相应物品未被包装的非附加密钥。当按下非附加键时，相应物品的重量不包括在总重量中。总重量可以打印在收据上，以便操作者可以将打印的总重量与测得的重量进行比较。总重量可以用条形码打印。余额有一个条形码阅读器进行比较。条形码阅读器可以提供给电子收款机。可以在厨房进一步提供与电子收款机通信的控制器进行比较。订单号可以打印在由条形码阅读器读取的收据上。控制器具有用于通知错误的监视器显示。可以进一步显示重量差异。

6. 发明授权

US09203359B2 Amplifier and audio device provided with amplifier 有权
标题翻译：放大器和音频设备配有放大器
公开(公告)号：US09203359B2
公开(公告)日：2015-12-01
申请号：US14000644
申请日：2012-03-23
申请人： Tsuyoshi Haga , Seigo Ozaki
发明人： Tsuyoshi Haga , Seigo Ozaki
IPC分类号： H03F3/38 , H03F3/185 , H03F3/187 , H03F3/217
CPC分类号： H03F3/185 , H03F3/187 , H03F3/217 , H03F3/2171 , H03F3/2173
摘要： Because of input of a digital signal, PWM-input, separately excited, class-D amplifier systems are less prone to be affected by noise than in the conventional case that an analog signal is input. Since a ramp wave that is synchronized with a PWM signal is used as a comparison clock, no beats occur between a PWM clock and a reference clock, making is possible to provide a class-D amplifier system which exhibits a large S/N ratio. Furthermore, the fact that an external clock can be varied provides another advantage that no beat noise occurs even in a set that is disposed close to a radio receiver.
摘要翻译：由于数字信号的输入，单独激励的PWM输入，与输入模拟信号的传统情况相比，D类放大器系统不太容易受到噪声的影响。由于与PWM信号同步的斜坡波用作比较时钟，所以在PWM时钟和参考时钟之间不会发生抖动，使得可以提供表现出大的S / N比的D类放大器系统。此外，可以改变外部时钟的事实提供了另外的优点，即使在靠近无线电接收机设置的集合中也不会产生拍频噪声。

7. 发明授权

US09036836B2 Amplifier apparatus 有权
标题翻译：放大器装置
公开(公告)号：US09036836B2
公开(公告)日：2015-05-19
申请号：US13701554
申请日：2011-06-16
申请人： Mingxue Zhang , Seigo Ozaki , Tsuyoshi Haga
发明人： Mingxue Zhang , Seigo Ozaki , Tsuyoshi Haga
IPC分类号： H03F99/00 , H03F3/38 , H03F3/20 , H03F3/217
CPC分类号： H03F3/183 , H03F1/0233 , H03F1/26 , H03F3/20 , H03F3/217 , H03F3/2173 , H03F2200/03 , H03F2200/351
摘要： Disclosed is a technique for reducing noise superimposed on an output signal while keeping loop gain constant without increasing the circuit scale and without changing the transfer function of the amplifier apparatus (frequency characteristics of gain and phase). According to the technique, there are included a power-supply voltage control unit 7 for detecting the amplitude level S9 of an input audio signal S1 and outputting power with a voltage value indicated by target set voltage value information Vs corresponding to this amplitude level S9, and a PWM modulation unit 2 including a PWM converter 23 for converting the pulse width of the input audio signal S1 and a correction unit for correcting the signal modulated by the PWM converter 23. The PWM modulation unit 2 corrects the pulse width of a PWM signal S5 modulated by the PWM converter 23 so that the correction unit will cancel out a change in amplification gain of a power amplification unit 4 according to the target set voltage value information Vs.
摘要翻译：公开了一种降低叠加在输出信号上的噪声的技术，同时保持环路增益恒定，而不增加电路规模，并且不改变放大器装置的传递函数（增益和相位的频率特性）。根据该技术，包括电源电压控制单元7，用于检测输入音频信号S1的振幅电平S9，并输出具有与该振幅电平S9对应的目标设定电压值信息Vs表示的电压值的电力，以及PWM调制单元2，其包括用于转换输入音频信号S1的脉冲宽度的PWM转换器23和用于校正由PWM转换器23调制的信号的校正单元。PWM调制单元2校正PWM信号的脉冲宽度 S5调制，使得校正单元将根据目标设定电压值信息Vs抵消功率放大单元4的放大增益的变化。

8. 发明申请

US20120099743A1 CLASS D AMPLIFICATION DEVICE 有权
标题翻译： D类放大器件
公开(公告)号：US20120099743A1
公开(公告)日：2012-04-26
申请号：US13381223
申请日：2010-05-19
申请人： Seigo Ozaki
发明人： Seigo Ozaki
IPC分类号： H03F99/00
CPC分类号： H03F3/2173 , H03F1/0205 , H03F1/3205 , H03F3/245
摘要： A controller 103 that conducts various controls corresponding to input information selects target voltage information and target dead time information corresponding to input audio signal level information from data table information, outputs the target voltage information to a variable power supply unit 104, and outputs the target dead time information associated with the target voltage information to a dead time generator 105, to thereby set an output supply voltage and a dead time corresponding to an input audio signal level in a half bridge circuit 107. Accordingly, there can be provided a class D amplification device that can minimize the dead time and reduce distortion while suppressing the amount of heat generation caused by a through-current.
摘要翻译：进行与输入信息对应的各种控制的控制器103从数据表信息中选择对应于输入音频信号电平信息的目标电压信息和目标死区时间信息，将目标电压信息输出到可变电源单元104，并输出目标死区将与目标电压信息相关联的时间信息提供给死区时间发生器105，从而在半桥电路107中设置与输入音频信号电平相对应的输出电源电压和死区时间。因此，可以提供D类放大装置，其可以最小化死区时间并减少失真，同时抑制由通流引起的发热量。

9. 发明授权

US09077295B2 Class D amplification device 有权
标题翻译： D类放大装置
公开(公告)号：US09077295B2
公开(公告)日：2015-07-07
申请号：US13381223
申请日：2010-05-19
申请人： Seigo Ozaki
发明人： Seigo Ozaki
IPC分类号： H03F99/00 , H03F3/217 , H03F1/02 , H03F1/32 , H03F3/24
CPC分类号： H03F3/2173 , H03F1/0205 , H03F1/3205 , H03F3/245
摘要： A controller 103 that conducts various controls corresponding to input information selects target voltage information and target dead time information corresponding to input audio signal level information from data table information, outputs the target voltage information to a variable power supply unit 104, and outputs the target dead time information associated with the target voltage information to a dead time generator 105, to thereby set an output supply voltage and a dead time corresponding to an input audio signal level in a half bridge circuit 107. Accordingly, there can be provided a class D amplification device that can minimize the dead time and reduce distortion while suppressing the amount of heat generation caused by a through-current.
摘要翻译：进行与输入信息对应的各种控制的控制器103从数据表信息中选择对应于输入音频信号电平信息的目标电压信息和目标死区时间信息，将目标电压信息输出到可变电源单元104，并输出目标死区将与目标电压信息相关联的时间信息提供给死区时间发生器105，从而在半桥电路107中设置与输入音频信号电平相对应的输出电源电压和死区时间。因此，可以提供D类放大装置，其可以最小化死区时间并减少失真，同时抑制由通流引起的发热量。

10. 发明申请

US20130328625A1 AMPLIFIER AND AUDIO DEVICE PROVIDED WITH AMPLIFIER 有权
标题翻译：放大器和音频设备提供放大器
公开(公告)号：US20130328625A1
公开(公告)日：2013-12-12
申请号：US14000644
申请日：2012-03-23
申请人： Tsuyoshi Haga , Seigo Ozaki
发明人： Tsuyoshi Haga , Seigo Ozaki
IPC分类号： H03F3/185 , H03F3/217
CPC分类号： H03F3/185 , H03F3/187 , H03F3/217 , H03F3/2171 , H03F3/2173
摘要： Because of input of a digital signal, PWM-input, separately excited, class-D amplifier systems are less prone to be affected by noise than in the conventional case that an analog signal is input. Since a ramp wave that is synchronized with a PWM signal is used as a comparison clock, no beats occur between a PWM clock and a reference clock, making is possible to provide a class-D amplifier system which exhibits a large S/N ratio. Furthermore, the fact that an external clock can be varied provides another advantage that no beat noise occurs even in a set that is disposed close to a radio receiver.
摘要翻译：由于数字信号的输入，单独激励的PWM输入，与输入模拟信号的传统情况相比，D类放大器系统不太容易受到噪声的影响。由于与PWM信号同步的斜坡波用作比较时钟，所以在PWM时钟和参考时钟之间不会发生抖动，使得可以提供表现出大的S / N比的D类放大器系统。此外，可以改变外部时钟的事实提供了另外的优点，即使在靠近无线电接收机设置的集合中也不会产生拍频噪声。

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