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1. 发明授权

US5410729A Signal transmission device having an automatic transmission level control circuit used in a multi-carrier transmission terminal equipment and multi-carrier transmission terminal equipment employing the transmission device 失效
标题翻译：具有在多载波传输终端设备中使用的自动传输电平控制电路的信号传输设备和采用传输设备的多载波传输终端设备
公开(公告)号：US5410729A
公开(公告)日：1995-04-25
申请号：US112557
申请日：1993-08-26
申请人： Yoshiaki Kumagai , Yoichi Endo
发明人： Yoshiaki Kumagai , Yoichi Endo
IPC分类号： H03G3/30 , H03G3/20 , H03G5/16 , H04B1/04
CPC分类号： H03G3/3052
摘要： A signal transmission device having ALC function includes a detection circuit for output level detection when used in a multi-carrier :system where the number of carriers changes. The signal transmission device further has a variable attenuator for controlling a level of a transmission signal. A transmission circuit is coupled to the output of the variable attenuator for modulating a local oscillation signal with the output of the variable attenuator and for generating a modulated output signal. The detection circuit is provided with the modulated output signal for generating a detection voltage. The detection circuit includes a diode having a square-law characteristic region. A reference voltage generating circuit receives an information signal indicative of the number of carriers for generating a reference voltage corresponding to the number of carriers. A first control circuit is provided, receiving the detecting voltage and the reference voltage, for generating and supplying, to the variable attenuator, a first control signal of a difference between the detection voltage and the reference voltage. A second control circuit is supplied with the information signal indicative of the number of carriers, for generating and supplying, to the detection circuit, a second control signal corresponding to the number of carriers, whereby the square-law characteristic region of the diode in the detection circuit is shifted responding to the second control signal.
摘要翻译：具有ALC功能的信号传输装置包括用于在载波数量变化的多载波系统中使用的用于输出电平检测的检测电路。信号传输装置还具有用于控制传输信号电平的可变衰减器。传输电路耦合到可变衰减器的输出，用于利用可变衰减器的输出调制本地振荡信号并产生调制的输出信号。检测电路具有用于产生检测电压的调制输出信号。检测电路包括具有平方律特征区域的二极管。参考电压发生电路接收指示用于产生与载波数相对应的参考电压的载波数的信息信号。提供第一控制电路，接收检测电压和参考电压，用于生成并向可变衰减器提供检测电压和参考电压之间的差的第一控制信号。第二控制电路被提供有指示载波数量的信息信号，用于产生和提供对应于载波数目的第二控制信号，由此二极管的平方律特性区域检测电路响应于第二控制信号而移位。

2. 发明授权

US5257415A Automatic transmission level control device 失效
标题翻译：自动变速箱液位控制装置
公开(公告)号：US5257415A
公开(公告)日：1993-10-26
申请号：US851614
申请日：1992-03-16
申请人： Yoshiaki Kumagai , Eiji Itaya , Yoichi Endo
发明人： Yoshiaki Kumagai , Eiji Itaya , Yoichi Endo
IPC分类号： H03G3/20 , H04B1/04 , H04B7/005 , H04L27/26
CPC分类号： H04W52/52 , H03G3/3047 , H04L27/2608 , H04B2001/0416
摘要： An automatic transmission level control device used in a multi-carrier communication system includes a gain controller for controlling a level of a transmission signal, a transmitter for amplifying the transmission signal, and a hybrid circuit for extracting a part of power of the transmission signal from the transmitter. A level control circuit adjusts a gain of the gain controller on the basis of a magnitude of the transmission signal and data indicating a number of carriers included in the transmission signal. A carrier detection unit filters the transmission signal and generates the data indicating the number of carriers included therein.
摘要翻译：在多载波通信系统中使用的自动发送电平控制装置包括用于控制发送信号的电平的增益控制器，用于放大发送信号的发送器，以及用于从发送信号的一部分提取发送信号的一部分电力的混合电路发射机。电平控制电路根据发送信号的大小和指示包含在发送信号中的载波数的数据来调整增益控制器的增益。载波检测单元对发送信号进行滤波，并生成表示其中包含的载波数的数据。

3. 发明授权

US5235292A Signal generator having backup oscillator switching circuit 失效
标题翻译：具有备用振荡器切换电路的信号发生器
公开(公告)号：US5235292A
公开(公告)日：1993-08-10
申请号：US892923
申请日：1992-06-03
申请人： Yoichi Endo , Eiji Itaya , Yoshiaki Kumagai
发明人： Yoichi Endo , Eiji Itaya , Yoshiaki Kumagai
IPC分类号： H03K17/00 , G06F7/68 , H03L7/00 , H03L7/08
CPC分类号： G06F7/68 , H03L7/0807
摘要： A signal generator having a switching function includes a first oscillation circuit, a second oscillation circuit, a frequency-division circuit and a combination circuit. The first oscillation circuit outputs a first frequency signal having a first frequency and a reset signal synchronized with the first frequency signal. The second oscillation circuit outputs a second frequency signal having a second frequency which is N times higher than the first frequency. The frequency-division circuit frequency-divides the second frequency signal by N, resets a value for frequency-division based on the reset signal and generates a divided second frequency signal. The combination circuit combines the first frequency signal and the divided second frequency signal and outputs a combined signal.

4. 发明授权

US5548811A Automatic frequency control circuit selectively using frequency-divided local oscillator signal or pilot signal 失效
标题翻译：自动频率控制电路选择使用分频本机振荡信号或导频信号
公开(公告)号：US5548811A
公开(公告)日：1996-08-20
申请号：US336205
申请日：1994-11-03
申请人： Yoshiaki Kumagai , Eiji Itaya , Yoichi Endo
发明人： Yoshiaki Kumagai , Eiji Itaya , Yoichi Endo
IPC分类号： H03J7/04 , H03J7/06 , H04B1/18
CPC分类号： H03J7/047 , H03J7/065
摘要： An automatic frequency control (AFC) circuit receives input signals and generates converted signals by mixing the input signals with a local oscillation signal. An extraction circuit extracts a pilot signal, if present, from the input signals and provides the pilot signal to a switch. A frequency divider divides a frequency of the local oscillation signal output from a voltage control oscillator, and provides the frequency-divided local oscillation signal to the switch. The output of the switch is compared with a reference frequency in a phase comparator which generates a comparison result which controls the voltage controlled oscillator. If the pilot signal is not present, the switch selects the frequency-divided oscillation signal, to construct a phase-locked loop to stabilize the frequency of the local oscillation signal. Alternatively, an AFC circuit includes a frequency divider for selectively dividing a frequency of a pilot signal included in the converted signal. Various frequencies of the pilot signal can be received by altering a division number in the frequency divider.
摘要翻译：自动频率控制（AFC）电路接收输入信号并通过将输入信号与本地振荡信号混合来产生转换的信号。提取电路从输入信号中提取导频信号（如果有的话），并向导频提供导频信号。分频器分压从压控振荡器输出的本地振荡信号的频率，并向开关提供分频本机振荡信号。将开关的输出与相位比较器中的参考频率进行比较，该相位比较器产生控制压控振荡器的比较结果。如果导频信号不存在，则开关选择分频振荡信号，构成锁相环，以稳定本振信号的频率。或者，AFC电路包括用于选择性地分频转换信号中包括的导频信号的频率的分频器。可以通过改变分频器中的分频数来接收导频信号的各种频率。

5. 发明申请

US20140361734A1 POWER SUPPLY METHOD, CHARGING CONTROL DEVICE, AND POWER SUPPLY SYSTEM 审中-公开
标题翻译：电源方法，充电控制装置和电源系统
公开(公告)号：US20140361734A1
公开(公告)日：2014-12-11
申请号：US13824102
申请日：2011-09-06
申请人： Daisuke Yamazaki , Masahiro Suzuki , Tetsu Natsume , Yoshihito Ishibashi , Shigeru Tajima , Yoshiaki Kumagai
发明人： Daisuke Yamazaki , Masahiro Suzuki , Tetsu Natsume , Yoshihito Ishibashi , Shigeru Tajima , Yoshiaki Kumagai
IPC分类号： H02J7/02 , H02J7/00
CPC分类号： H02J50/12 , H01M10/425 , H01M10/44 , H01M10/46 , H02J5/005 , H02J7/0042 , H02J7/0052 , H02J7/007 , H02J7/025 , H02J17/00 , H02J50/10 , H02J50/40 , H02J50/80
摘要： There is provided a power supply method including an initial setting step of performing, by a charging control device, initial setting on a plurality of battery devices each including a secondary cell therein and a charging device performing contactless power transmission to transmit power to the battery devices that are provided in a stacked manner, a power transmission instruction step of providing, by the charging control device, an instruction to start the contactless power transmission from the charging device subjected to the initial setting in the initial setting step to the battery devices, a contactless power transmission step of performing the contactless power transmission from the charging device to the battery devices and a charging completion step of notifying, when charging of the battery devices is completed, the charging control device of completion of the charging by the battery devices.
摘要翻译：提供了一种电源方法，包括初始设定步骤，其由充电控制装置执行在其中包括二次电池的多个电池装置上的初始设定，以及执行非接触电力传输的充电装置，以向电池装置发送电力电力传输指令步骤，由充电控制装置提供从初始设定步骤中经受初始设定的充电装置开始到电池装置的无接触电力传输的指令，a，非接触式电力传输步骤，用于执行从充电装置到电池装置的非接触式电力传输;以及充电完成步骤，当电池装置的充电完成时通知电池装置完成充电的充电控制装置。

6. 外观设计

USD496036S1 Portable information terminal 失效
公开(公告)号：USD496036S1
公开(公告)日：2004-09-14
申请号：US29189608
申请日：2003-09-09
申请人： Yoshiaki Kumagai , Ryuta Kanno
设计人： Yoshiaki Kumagai , Ryuta Kanno

7. 外观设计

USD494167S1 Portable information terminal 失效
公开(公告)号：USD494167S1
公开(公告)日：2004-08-10
申请号：US29189620
申请日：2003-09-09
申请人： Maki Hirakawa , Yoshiaki Kumagai , Ryuta Kanno
设计人： Maki Hirakawa , Yoshiaki Kumagai , Ryuta Kanno

8. 外观设计

USD431270S Toy 失效
公开(公告)号：USD431270S
公开(公告)日：2000-09-26
申请号：US106077
申请日：1999-06-10
申请人： Kozo Kawakita , Takeshi Yamagishi , Hiroshi Osawa , Kazuhiro Kato , Yoshiaki Kumagai , Shuichi Kobayashi , Masaki Nagatsuka , Hajime Sorayama
设计人： Kozo Kawakita , Takeshi Yamagishi , Hiroshi Osawa , Kazuhiro Kato , Yoshiaki Kumagai , Shuichi Kobayashi , Masaki Nagatsuka , Hajime Sorayama

9. 发明授权

US5926230A Electrical program guide system and method 失效
标题翻译：电气程序指导系统和方法
公开(公告)号：US5926230A
公开(公告)日：1999-07-20
申请号：US591349
申请日：1996-01-25
申请人： Makoto Niijima , Hiroaki Nakano , Yumie Sonoda , Yoshiaki Kumagai , Junichi Nagahara , Tatsushi Nashida , Hirofumi Tamori , Hiroyuki Hanaya
发明人： Makoto Niijima , Hiroaki Nakano , Yumie Sonoda , Yoshiaki Kumagai , Junichi Nagahara , Tatsushi Nashida , Hirofumi Tamori , Hiroyuki Hanaya
IPC分类号： H04N5/262 , H04N5/44 , H04N5/445 , H04N7/08 , H04N7/081 , H04N7/173
CPC分类号： H04N21/44222 , H04N21/482 , H04N5/44543 , H04N7/165 , H04N21/42204 , H04N21/4316 , H04N21/47
摘要： An electrical program guide system and method by which a desired program can be selected rapidly with certainty, intuitively and directly from among a large number of programs, in which nine reduced screens reduced from nine screens of different programs are arranged in a 3.times.3 matrix to construct one multi-screen as a screen for program selection. Six such screens for program selection are individually produced by multi-screen production circuits and encoded by MPEG video encoders, and then multiplexed by a multiplexer so that they may be transmitted via a single transmission channel. The multiplexed signal is subjected to error correction coding and QPSK modulation by a transmission line coding apparatus and then it is further subjected to frequency conversion by an up converter. The resultant signal is transmitted to an artificial satellite through a mixer and a parabola antenna. Each multi-screen received on the reception side from the satellite is displayed as 3.times.3 pieces of reduced screens of full motion, and a viewer will find out and directly select a desired program from a preview screen formed from the reduced screens.
摘要翻译：一种电子节目指南系统和方法，通过该电子节目指南系统和方法，可以从大量节目中确切地，直观地和直接地快速地选择期望的节目，其中从3个不同节目的9个画面中减少9个缩小的画面被排列在3×3矩阵中以构造一个多屏幕作为程序选择的屏幕。用于节目选择的六个这样的屏幕由多屏生产电路分别产生并由MPEG视频编码器编码，然后由多路复用器复用，使得它们可以经由单个传输通道传输。复用信号由传输线编码装置进行纠错编码和QPSK调制，然后进一步由上变频器进行频率转换。所得到的信号通过混频器和抛物线天线发送到人造卫星。从卫星接收侧接收到的每个多画面被显示为3×3个全动态缩小的屏幕，并且观看者将从从缩小的屏幕形成的预览屏幕中找到并直接选择所需的节目。

10. 外观设计

USD385562S Media unit 失效
公开(公告)号：USD385562S
公开(公告)日：1997-10-28
申请号：US38404
申请日：1995-05-05
申请人： Makoto Niijima , Yoshiaki Kumagai
设计人： Makoto Niijima , Yoshiaki Kumagai

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