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111. 发明申请

US20100112971A1 FREQUENCY CONVERTING CIRCUIT AND RECEIVER 审中-公开
标题翻译：频率转换电路和接收器
公开(公告)号：US20100112971A1
公开(公告)日：2010-05-06
申请号：US12503199
申请日：2009-07-15
申请人： Junya Matsuno , Takafumi Yamaji , Tetsuro Itakura
发明人： Junya Matsuno , Takafumi Yamaji , Tetsuro Itakura
IPC分类号： H04B1/16 , H04B15/00
CPC分类号： H04B1/30
摘要： A receiver includes a multiphase mixer that multiplies a received radio signal by multiphase local signals the number of which is the same as an integer having a first prime factor and a second prime factor different from the first prime factor, and generates first multiphase baseband signals the number of which is the same as the integer, a first processing circuit that suppresses common modes for first multiphase signal groups formed by dividing the first multiphase baseband signals into groups of signals the number of which is the same as the first prime factor, and generates second multiphase baseband signals, and a second processing circuit that suppresses common modes for second multiphase signal groups formed by dividing the second multiphase baseband signals into groups of signals the number of which is the same as the second prime factor, and generates third multiphase baseband signals.
摘要翻译：接收机包括：多相混合器，其通过多个本地信号乘以接收的无线电信号，多相本地信号的数量与具有不同于第一素因子的第一素因子和第二素因子的整数相同，并且生成第一多相基带信号其数量与整数相同，第一处理电路抑制通过将第一多相基带信号划分成与第一素数相同数量的信号组而形成的第一多相信号组的共模，并产生第二多相基带信号，以及第二处理电路，其抑制通过将第二多相基带信号划分成与第二素因数相同的信号组而形成的第二多相信号组的共模，并且产生第三多相基带信号。

112. 发明授权

US07583948B2 Time constant automatic adjusting circuit, filter circuit system, and method of automatically adjusting time constant 失效
标题翻译：时间常数自动调节电路，滤波电路系统及自动调整时间常数的方法
公开(公告)号：US07583948B2
公开(公告)日：2009-09-01
申请号：US11411939
申请日：2006-04-27
申请人： Osamu Watanabe , Rui Ito , Shigehito Saigusa , Tetsuro Itakura
发明人： Osamu Watanabe , Rui Ito , Shigehito Saigusa , Tetsuro Itakura
IPC分类号： H04B1/00
CPC分类号： H03H11/1291
摘要： A time constant automatic adjusting circuit comprises: a filter circuit varying a phase of an clock signal to be input so as to output the clock signal; a phase comparison circuit comparing a phase of an output signal of the filter circuit with the phase of the clock signal, and outputting a predetermined voltage when the phase of the output signal and the phase of the clock signal are the same; at least three comparators comparing the output voltage with a plurality of different voltages; an up-down counter counting a number of output bits of either one of the at least three different voltages in accordance with an output result of the comparators; and a control circuit varying the time constant of the filter circuit in accordance with the number of output bits counted by the up-down counter.
摘要翻译：时间常数自动调整电路包括：滤波器电路，改变输入时钟信号的相位以输出时钟信号; 相位比较电路，将滤波器电路的输出信号的相位与时钟信号的相位进行比较，并且当输出信号的相位和时钟信号的相位相同时输出预定电压; 至少三个比较器将输出电压与多个不同电压进行比较; 根据比较器的输出结果，计数至少三个不同电压中的任何一个的输出位的数量的递减计数器; 以及控制电路根据由升降计数器计数的输出位数来改变滤波电路的时间常数。

113. 发明申请

US20080284634A1 DIFFERENTIAL AMPLIFYING CIRCUIT 失效
标题翻译：差分放大电路
公开(公告)号：US20080284634A1
公开(公告)日：2008-11-20
申请号：US12173431
申请日：2008-07-15
申请人： Tomohiko Ito , Tetsuro Itakura
发明人： Tomohiko Ito , Tetsuro Itakura
IPC分类号： H03M1/60
CPC分类号： H03F3/45179
摘要： Disclosed is a differential amplifying circuit including an amplifying circuit, wherein 1) a drain of a sixth transistor is connected to a drain of an eighth transistor, and a drain of a tenth transistor is connected to a drain of a fourth transistor, and 2) a ratio between a total of gate widths of the fourth (or eighth) and tenth (or sixth) transistors (converted per unit gate length, and gate widths that follow are the same) and a gate width of a fifth (or ninth) transistor is nearly proportional to a current ratio between a first (or third) and second (or fourth) current source circuits, the gate width of the fourth (or eighth) transistor being equal to or more than that of the tenth (or sixth) transistor.
摘要翻译：公开了一种包括放大电路的差分放大电路，其中1）第六晶体管的漏极连接到第八晶体管的漏极，第十晶体管的漏极连接到第四晶体管的漏极，以及2）第四（或第八）和第十（或第六）晶体管（每单位栅极长度转换，并且随后的栅极宽度相同）的栅极宽度的总和与第五（或第九）晶体管与第一（或第三）和第二（或第四）电流源电路之间的电流比几乎成比例，第四（或第八）晶体管的栅极宽度等于或大于第十（或第六）晶体管的栅极宽度。

114. 发明申请

US20080274714A1 AMPLIFIER, FILTER USING THE SAME, AND RADIO COMMUNICATION DEVICE 审中-公开
公开(公告)号：US20080274714A1
公开(公告)日：2008-11-06
申请号：US12170989
申请日：2008-07-10
申请人： Takafumi Yamaji , Rui Ito , Tetsuro Itakura
发明人： Takafumi Yamaji , Rui Ito , Tetsuro Itakura
IPC分类号： H04B1/16 , H03F3/45 , H03B1/00
CPC分类号： H03F3/193 , H03F3/45085 , H03F3/45183 , H03F2203/45352
摘要： An amplifier includes an amplification unit which amplify a first difference between first and second input signals, a second difference between second and third input signals and a third difference between third and first input signals by a differential mode gain, and amplify an average of the first, second and third input signal by a common mode gain, for outputting a first output signal corresponding to a sum of the amplified first difference and the amplified average, a second output signal corresponding to a sum of the amplified second difference and the amplified average, and a third output signal corresponding to a sum of the amplified third difference and amplified average; first, second; and a reduction circuit which reduces the common mode gain less than the differential mode gain.

115. 发明申请

US20080143434A1 TRANSCONDUCTOR 失效
公开(公告)号：US20080143434A1
公开(公告)日：2008-06-19
申请号：US11847503
申请日：2007-08-30
申请人： Rui Ito , Tetsuro Itakura
发明人： Rui Ito , Tetsuro Itakura
IPC分类号： G06G7/12
CPC分类号： H03G1/0029 , H03F1/3211 , H03F3/45179 , H03F3/45475 , H03F2203/45318 , H03F2203/45342 , H03F2203/45352 , H03F2203/45398 , H03H11/04
摘要： Disclosed is a transconductor including: first and second transistors each having first and second gates, the first and second gates being independently controlled, differential voltage input being supplied between the one first gate and the other first gate, the one source and the other source being connected, a first control voltage being commonly given to both of the second gates, and the drains being differential current output terminals; third and fourth transistors each having the same connection as the first and second transistors, each of the one drain and the other drain being connected with either of the one drain and the other drain of the first and the second transistors so that polarities are opposite to each other; and a current source connected with both of the sources of the first and the second transistors and both of the sources of the third and the fourth transistors.
摘要翻译：公开了一种跨导体，包括：第一和第二晶体管，每个具有第一和第二栅极，第一和第二栅极被独立地控制，差分电压输入被提供在一个第一栅极和另一个第一栅极之间，一个源极和另一个源极所述第一控制电压通常被提供给所述第二栅极，并且所述漏极是差动电流输出端子; 第三和第四晶体管各自具有与第一和第二晶体管相同的连接，一个漏极和另一个漏极中的每一个与第一和第二晶体管的一个漏极和另一个漏极中的任一个连接，使得极性与彼此; 以及与第一和第二晶体管的源极以及第三和第四晶体管的源极两者连接的电流源。

116. 发明申请

US20080117237A1 LIQUID CRYSTAL DRIVING CIRCUIT AND LOAD DRIVING CIRCUIT 审中-公开
标题翻译：液晶驱动电路和负载驱动电路
公开(公告)号：US20080117237A1
公开(公告)日：2008-05-22
申请号：US12016511
申请日：2008-01-18
申请人： Tetsuya SAITO , Hironori Minamizaki , Tetsuro Itakura
发明人： Tetsuya SAITO , Hironori Minamizaki , Tetsuro Itakura
IPC分类号： G09G5/10 , H03B1/00
CPC分类号： G09G3/3696 , G09G3/2011 , G09G3/3688 , G09G2310/027 , G09G2330/021 , G09G2360/16
摘要： There is disclosed a liquid crystal driving circuit configured to supply an analog voltage in accordance with digital grayscale data to each of a plurality of signal lines, said circuit comprising: a reference voltage generation circuit configured to output analog reference voltages corresponding to each of said digital grayscale data; a plurality of buffer amplifiers configured to individually perform buffering of said respective analog reference voltages; a grayscale mode circuit configured to determine a grayscale number of said digital grayscale data based on a grayscale mode signal supplied from the outside; and an amplifier enable circuit configured to set each of said plurality of buffer amplifiers to an enable state or a disable state based on an output signal of said grayscale mode circuit.
摘要翻译：公开了一种液晶驱动电路，其被配置为将数字灰度数据的模拟电压提供给多条信号线中的每条信号线，所述电路包括：参考电压产生电路，被配置为输出对应于每个所述数字灰度数据; 多个缓冲放大器，被配置为单独地执行所述各个模拟参考电压的缓冲; 灰度模式电路，被配置为基于从外部提供的灰度模式信号来确定所述数字灰度数据的灰度数; 以及放大器使能电路，被配置为基于所述灰度级模式电路的输出信号将所述多个缓冲放大器中的每一个设置为使能状态或禁用状态。

117. 发明申请

US20060221099A1 Image data processing apparatus and image data processing method 失效
标题翻译：图像数据处理装置和图像数据处理方法
公开(公告)号：US20060221099A1
公开(公告)日：2006-10-05
申请号：US11231762
申请日：2005-09-22
申请人： Haruhiko Okumura , Tetsuro Itakura , Hironori Minamizaki
发明人： Haruhiko Okumura , Tetsuro Itakura , Hironori Minamizaki
IPC分类号： G09G5/00
CPC分类号： G06F3/1415 , G09G3/2096 , G09G3/3688 , G09G5/006 , G09G5/008 , G09G2310/027 , G09G2330/06 , G09G2340/16 , G09G2370/045 , G09G2370/047
摘要： An image data processing apparatus includes: a data dividing unit dividing arithmetic image data into arithmetic pixel data corresponding to a signal line of a display device; an adder adding first data and second data; and a data delaying unit delaying the added data, wherein the first data is the divided arithmetic pixel data from the data dividing unit, and the second data is the delayed added arithmetic pixel data from the data delaying unit.
摘要翻译：图像数据处理装置包括：数据划分单元，将运算图像数据分割成与显示装置的信号线对应的算术像素数据; 加法器，其添加第一数据和第二数据; 以及数据延迟单元延迟所添加的数据，其中所述第一数据是来自所述数据分割单元的分割的运算像素数据，并且所述第二数据是来自所述数据延迟单元的延迟加法运算像素数据。

118. 发明授权

US07098737B2 Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this amplifier 有权
公开(公告)号：US07098737B2
公开(公告)日：2006-08-29
申请号：US10448367
申请日：2003-05-30
申请人： Ryuichi Fujimoto , Tetsuro Itakura
发明人： Ryuichi Fujimoto , Tetsuro Itakura
IPC分类号： H03G3/12
CPC分类号： H03B5/1841 , H03B5/1209 , H03B5/1215 , H03B5/1225 , H03B5/1228 , H03B5/1231 , H03B5/1243 , H03B5/1256 , H03B5/1271 , H03B5/1278 , H03B5/1296 , H03F3/45089 , H03F3/45183 , H03F3/45188 , H03F3/72 , H03F2200/294 , H03F2200/372 , H03F2203/45318 , H03F2203/45362 , H03F2203/45386 , H03F2203/45591 , H03F2203/45638 , H03G1/0029 , H03H11/48 , H03H11/485 , H03J2200/10
摘要： An amplifier comprises an amplifier circuit which comprises a first inductor as an impedance element for degeneration, and a control circuit which has a second inductor electro-magnetically connected to the first inductor, and changes a control current flowing through the second inductor to change an inductance value of the first inductor, thereby changing amplification characteristics of the amplifier circuit.

119. 发明申请

US20060170500A1 Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this amplifier 有权
公开(公告)号：US20060170500A1
公开(公告)日：2006-08-03
申请号：US11393676
申请日：2006-03-31
申请人： Ryuichi Fujimoto , Tetsuro Itakura
发明人： Ryuichi Fujimoto , Tetsuro Itakura
IPC分类号： H03G3/12
CPC分类号： H03B5/1841 , H03B5/1209 , H03B5/1215 , H03B5/1225 , H03B5/1228 , H03B5/1231 , H03B5/1243 , H03B5/1256 , H03B5/1271 , H03B5/1278 , H03B5/1296 , H03F3/45089 , H03F3/45183 , H03F3/45188 , H03F3/72 , H03F2200/294 , H03F2200/372 , H03F2203/45318 , H03F2203/45362 , H03F2203/45386 , H03F2203/45591 , H03F2203/45638 , H03G1/0029 , H03H11/48 , H03H11/485 , H03J2200/10
摘要： An amplifier comprises an amplifier circuit which comprises a first inductor as an impedance element for degeneration, and a control circuit which has a second inductor electro-magnetically connected to the first inductor, and changes a control current flowing through the second inductor to change an inductance value of the first inductor, thereby changing amplification characteristics of the amplifier circuit.

120. 发明申请

US20060033584A1 Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this amplifier 有权
标题翻译：可变电感器，包括可变电感器的振荡器和包括该振荡器的无线电终端，以及包括可变电感器的放大器和包括该放大器的无线电终端
公开(公告)号：US20060033584A1
公开(公告)日：2006-02-16
申请号：US11204166
申请日：2005-08-16
申请人： Ryuichi Fujimoto , Tetsuro Itakura
发明人： Ryuichi Fujimoto , Tetsuro Itakura
IPC分类号： H03J7/02
CPC分类号： H03B5/1841 , H03B5/1209 , H03B5/1215 , H03B5/1225 , H03B5/1228 , H03B5/1231 , H03B5/1243 , H03B5/1256 , H03B5/1271 , H03B5/1278 , H03B5/1296 , H03F3/45089 , H03F3/45183 , H03F3/45188 , H03F3/72 , H03F2200/294 , H03F2200/372 , H03F2203/45318 , H03F2203/45362 , H03F2203/45386 , H03F2203/45591 , H03F2203/45638 , H03G1/0029 , H03H11/48 , H03H11/485 , H03J2200/10
摘要： An amplifier comprises an amplifier circuit which comprises a first inductor as an impedance element for degeneration, and a control circuit which has a second inductor electro-magnetically connected to the first inductor, and changes a control current flowing through the second inductor to change an inductance value of the first inductor, thereby changing amplification characteristics of the amplifier circuit.
摘要翻译：放大器包括放大器电路，其包括作为退化的阻抗元件的第一电感器，以及具有与第一电感器电磁连接的第二电感器的控制电路，并且改变流过第二电感器的控制电流以改变电感值，从而改变放大器电路的放大特性。

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