专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07054395B2 Automatic gain control for digital demodulation apparatus 失效
标题翻译：数字解调装置的自动增益控制
公开(公告)号：US07054395B2
公开(公告)日：2006-05-30
申请号：US09853682
申请日：2001-05-14
申请人： Hiroshi Azakami , Takaaki Konishi , Hisaya Kato , Naoya Tokunaga , Hiroaki Ozeki , Kazuya Ueda
发明人： Hiroshi Azakami , Takaaki Konishi , Hisaya Kato , Naoya Tokunaga , Hiroaki Ozeki , Kazuya Ueda
IPC分类号： H04L27/08
CPC分类号： H03G3/3089
摘要： A digital demodulation apparatus automatically controls gain based on a state of receiving a digital modulated signal. The digital demodulation apparatus amplifies a digital modulated signal wave received through the air with the gain automatically controlled so as to have a predetermined amplitude. In the digital demodulation apparatus, a receive level variation detector detects receive level variation, an amount of noise components of the received digital signal wave. A gain controller 15 controls the gain with a receive level variation adaptive control signal based on the detected receive level variation, the amount of noise components.
摘要翻译：数字解调装置根据接收数字调制信号的状态自动控制增益。数字解调装置以自动控制的增益放大通过空气接收的数字调制信号波，以具有预定的幅度。在数字解调装置中，接收电平变化检测器检测接收电平变化，接收的数字信号波的噪声分量的量。增益控制器15基于检测到的接收电平变化，噪声分量的量，利用接收电平变化自适应控制信号来控制增益。

2. 发明授权

US06907064B1 Waveform equalization controller and waveform equalization control method 失效
标题翻译：波形均衡控制器和波形均衡控制方法
公开(公告)号：US06907064B1
公开(公告)日：2005-06-14
申请号：US09698020
申请日：2000-10-30
申请人： Naoya Tokunaga , Kazuya Ueda
发明人： Naoya Tokunaga , Kazuya Ueda
IPC分类号： H04N7/015 , H03H7/30 , H03H7/40 , H03H21/00 , H04L25/03
CPC分类号： H03H21/0012 , H03H2021/0078 , H04L2025/03375 , H04L2025/03617 , H04L2025/03687
摘要： A waveform equalization controller which combines a follow-up property when the distortion is varied and there is a higher convergence speed at the initial operation, and a higher stability at a low C/N time, and which realizes a high performance and a low cost in a waveform equalizer. The waveform equalization controller controls the updating of a tap coefficient, and comprises a waveform equalizer for reducing a transmission line distortion of an input signal based on a LMS algorithm, an error estimation unit for estimating an error signal from an output signal of the waveform equalizer and outputting the error signal, a step size decision unit for generating a step size having an arbitrary size and outputting the step size, and a coefficient updating amount calculation unit for calculating a tap coefficient updating amount based on the error signal, the step size and a tap coefficient updating data.
摘要翻译：一种波形均衡控制器，其在失真变化时具有跟随特性，并且在初始操作时具有较高的收敛速度，并且在低C / N时间具有更高的稳定性，并且实现了高性能和低成本在波形均衡器中。波形均衡控制器控制抽头系数的更新，并且包括用于基于LMS算法减少输入信号的传输线失真的波形均衡器，用于从波形均衡器的输出信号估计误差信号的误差估计单元并输出误差信号;步长决定单元，用于生成具有任意大小的步长并输出步长;以及系数更新量计算单元，用于基于误差信号计算抽头系数更新量，步长和抽头系数更新数据。

3. 发明授权

US06870880B2 Waveform equalization apparatus 失效
标题翻译：波形均衡装置
公开(公告)号：US06870880B2
公开(公告)日：2005-03-22
申请号：US10081718
申请日：2002-02-25
申请人： Naoya Tokunaga , Kazuya Ueda
发明人： Naoya Tokunaga , Kazuya Ueda
IPC分类号： H04N5/14 , G11B20/10 , H04B3/06 , H04L25/03 , H04N5/21 , H03H7/30
CPC分类号： H04L25/03019 , H04L2025/03535
摘要： A waveform equalization apparatus is provided with plural TF (transversal filter) units and plural selectors, and the TF units are connected such that the construction of the whole filter becomes a real component filter when an input signal is a VSB signal while it becomes a complex filter when the input signal is a QAM signal, by switching the inputs of each selector. The waveform equalization apparatus so constructed can waveform-equalize both the VSB signal and the QAM signal, and the circuit scale of the apparatus is reduced.
摘要翻译：波形均衡装置具有多个TF（横向滤波器）单元和多个选择器，并且TF单元被连接，使得当输入信号是VSB信号时，整个滤波器的结构变为实分量滤波器，同时变成复数当输入信号为QAM信号时，通过切换每个选择器的输入进行滤波。这样构成的波形均衡装置能够对VSB信号和QAM信号进行波形均衡，并且减小了装置的电路规模。

4. 发明授权

US07302021B2 Digital broadcast receiving apparatus 失效
标题翻译：数字广播接收装置
公开(公告)号：US07302021B2
公开(公告)日：2007-11-27
申请号：US09878427
申请日：2001-06-12
申请人： Takaaki Konishi , Hiroshi Azakami , Kazuya Ueda , Naoya Tokunaga
发明人： Takaaki Konishi , Hiroshi Azakami , Kazuya Ueda , Naoya Tokunaga
IPC分类号： H04L27/08
CPC分类号： H04N5/4446 , H03G3/3068 , H03G3/3089 , H04H40/18 , H04N5/4401 , H04N5/50 , H04N5/52 , H04N21/42607
摘要： In a digital broadcast receiving apparatus for amplifying a received modulated digital signal wave with automatically adjusted gain and demodulating the modulated signal wave to a digital signal, a tuner frequency-converts the modulated digital signal wave to generate a first modulated signal. A first automatic gain control amplification unit controls gain of the tuner to make a level of the first modulated signal at a first predetermined level. An A/D converter converts the first modulated signal into a second modulated signal. A demodulator demodulates the second modulated signal to generate a first demodulated digital signal. A second automatic gain control amplifier generates a second demodulated digital signal where frequency fluctuations included in the digital modulated wave are eliminated.
摘要翻译：在一种数字广播接收装置中，用于利用自动调节增益放大接收到的调制数字信号波并将调制信号波解调为数字信号，调谐器对调制数字信号波进行频率转换以产生第一调制信号。第一自动增益控制放大单元控制调谐器的增益使第一调制信号的电平达到第一预定电平。 A / D转换器将第一调制信号转换成第二调制信号。解调器解调第二调制信号以产生第一解调数字信号。第二自动增益控制放大器产生第二解调数字信号，其中消除了数字调制波中包括的频率波动。

5. 发明授权

US06934522B2 Automatic gain control apparatus 失效
标题翻译：自动增益控制装置
公开(公告)号：US06934522B2
公开(公告)日：2005-08-23
申请号：US09886377
申请日：2001-06-22
申请人： Takaaki Konishi , Hiroshi Azakami , Kazuya Ueda , Naoya Tokunaga , Hisaya Kato , Hiroaki Ozeki
发明人： Takaaki Konishi , Hiroshi Azakami , Kazuya Ueda , Naoya Tokunaga , Hisaya Kato , Hiroaki Ozeki
IPC分类号： H03G3/20 , H03G1/04 , H04B1/28 , H04B1/06
CPC分类号： H03G1/04 , H04B1/28
摘要： In an automatic gain control amplifier, an RF automatic gain controller controls the gain of a radio frequency signal. A frequency converter frequency-converts the radio frequency signal into an intermediate frequency signal. An IF automatic gain controller controls the gain of the intermediate frequency. A level detector detects a signal level of the gain-controlled intermediate frequency signal, and generates a level signal. An automatic gain control signal generator separately controls, based the level signal, the RF automatic gain controller and the IF automatic gain controller.
摘要翻译：在自动增益控制放大器中，RF自动增益控制器控制射频信号的增益。变频器将射频信号频率转换成中频信号。中频自动增益控制器控制中频增益。电平检测器检测增益控制中频信号的信号电平，并产生电平信号。自动增益控制信号发生器基于电平信号单独控制RF自动增益控制器和IF自动增益控制器。

6. 发明授权

US07133481B2 Synchronization detection apparatus 失效
标题翻译：同步检测装置
公开(公告)号：US07133481B2
公开(公告)日：2006-11-07
申请号：US10311638
申请日：2002-04-05
申请人： Hiroshi Azakami , Takaaki Konishi , Hisaya Kato , Naoya Tokunaga , Kazuaki Suzuki , Kazuya Ueda
发明人： Hiroshi Azakami , Takaaki Konishi , Hisaya Kato , Naoya Tokunaga , Kazuaki Suzuki , Kazuya Ueda
IPC分类号： H04L7/00
CPC分类号： H04N5/211 , H04H40/18 , H04L7/042 , H04L7/06 , H04L27/02 , H04N5/08
摘要： An input signal DT contains a segment synchronization signal compliant with the ATSC standard. A clock multiplication section 111 multiplies a clock CK. A switchable sampling section 112 selects a sample point from among a plurality of timing points that are defined by the multiplied clock, and samples the input signal DT at the selected sample point. Moreover, the switchable sampling section 112 switches sample points from one to another in a synchronization-unestablished state. Once the segment synchronization is established, a synchronization detection device may maintain a synchronization-established state until the field synchronization detection fails, or the synchronization detection device may output a synchronization detection signal after shifting it in the time direction based on a bit error rate RT of the input signal.
摘要翻译：输入信号DT包含符合ATSC标准的片段同步信号。时钟倍增部分111将时钟CK相乘。可切换取样部112从由倍增时钟定义的多个定时点中选择采样点，并对选择的采样点对输入信号DT进行采样。此外，可切换采样部112在同步未建立状态下将采样点从一个切换到另一个。一旦段同步建立，同步检测装置可以保持同步建立状态，直到现场同步检测失败，或者同步检测装置可以在基于位错误率RT在时间方向上移动同步检测信号之后输出同步检测信号的输入信号。

7. 发明授权

US08743036B2 Liquid crystal display 有权
标题翻译：液晶显示器
公开(公告)号：US08743036B2
公开(公告)日：2014-06-03
申请号：US13368913
申请日：2012-02-08
申请人： Takashi Sasabayashi , Arihiro Takeda , Hiroyasu Inoue , Kazuya Ueda , Yoshio Koike , Hideaki Tsuda , Yasutoshi Tasaka , Hidefumi Yoshida , Kunihiro Tashiro , Tsuyoshi Kamada , Kimiaki Nakamura
发明人： Takashi Sasabayashi , Arihiro Takeda , Hiroyasu Inoue , Kazuya Ueda , Yoshio Koike , Hideaki Tsuda , Yasutoshi Tasaka , Hidefumi Yoshida , Kunihiro Tashiro , Tsuyoshi Kamada , Kimiaki Nakamura
IPC分类号： G09G3/36
CPC分类号： G02F1/1393 , G02F1/133371 , G02F1/133707 , G02F1/133788 , G02F2001/133757 , G02F2001/134345
摘要： A liquid crystal display has a pair of substrates with liquid crystal sealed between them. A polymer layer regulates directions in which the liquid crystal molecules tilt. A plurality of gate bus lines and a plurality of drain bus lines are provided on one of the substrates. Color filters and a pixel electrode are provided on the substrate. The pixel electrode includes a first sub-pixel electrode and a second sub-pixel electrode. A common electrode is provided on the other substrate. A first and a second thin film transistor are connected to the first sub-pixel electrode. The first thin film transistors is connected to a first gate bus line, and the second thin film transistor is connected to a second bus line.
摘要翻译：液晶显示器具有一对在它们之间被密封的液晶基板。聚合物层调节液晶分子倾斜的方向。在一个基板上设置多条栅极总线和多条漏极总线。滤色器和像素电极设置在基板上。像素电极包括第一子像素电极和第二子像素电极。在另一基板上设置公共电极。第一和第二薄膜晶体管连接到第一子像素电极。第一薄膜晶体管连接到第一栅极总线，第二薄膜晶体管连接到第二总线。

8. 发明授权

US08427610B2 Liquid crystal display 有权
标题翻译：液晶显示器
公开(公告)号：US08427610B2
公开(公告)日：2013-04-23
申请号：US13113539
申请日：2011-05-23
申请人： Kazuya Ueda , Tsuyoshi Kamada , Hidefumi Yoshida , Yoshio Koike , Kenji Okamoto , Yuichi Inoue , Seiji Tanuma
发明人： Kazuya Ueda , Tsuyoshi Kamada , Hidefumi Yoshida , Yoshio Koike , Kenji Okamoto , Yuichi Inoue , Seiji Tanuma
IPC分类号： G02F1/1337 , G02F1/133
CPC分类号： G02F1/133707 , C09K19/02 , C09K19/56 , G02F1/133371 , G02F1/133753 , G02F1/1393
摘要： A liquid crystal display device includes a pair of substrates provided opposite to each other, a common electrode provided on one of the pair of substrates, and a pixel electrode provided on the other of the pair of substrates. A vertical alignment type liquid crystal is sealed between the pair of substrates. An alignment film is polymerizable upon irradiation of UV, and is obtained by polymerizing substantially the entire alignment film with a voltage applied between the electrodes after the liquid crystal is sealed between the substrates. A pixel region has areas whose electro-optical characteristics are different from each other because of a difference between applied voltages at the time of polymerization.
摘要翻译：液晶显示装置包括彼此相对设置的一对基板，设置在一对基板中的一个基板上的公共电极和设置在该对基板中的另一个基板上的像素电极。在一对基板之间密封垂直取向型液晶。取向膜在照射紫外线时是可聚合的，并且通过在液晶被密封在基板之后，在施加在电极之间的电压基本上聚合整个取向膜而获得。像素区域由于聚合时的施加电压的差异而具有电光特性彼此不同的区域。

9. 发明申请

US20120154701A1 LIQUID CRYSTAL DISPLAY AND METHOD OF MANUFACTURING THE SAME 有权
标题翻译：液晶显示器及其制造方法
公开(公告)号：US20120154701A1
公开(公告)日：2012-06-21
申请号：US13368913
申请日：2012-02-08
申请人： Takashi Sasabayashi , Arihiro Takeda , Hiroyasu Inoue , Kazuya Ueda , Yoshio Koike , Hideaki Tsuda , Yasutoshi Tasaka , Hidefumi Yoshida , Kunihiro Tashiro , Tsuyoshi Kamada , Kimiaki Nakamura
发明人： Takashi Sasabayashi , Arihiro Takeda , Hiroyasu Inoue , Kazuya Ueda , Yoshio Koike , Hideaki Tsuda , Yasutoshi Tasaka , Hidefumi Yoshida , Kunihiro Tashiro , Tsuyoshi Kamada , Kimiaki Nakamura
IPC分类号： G02F1/136
CPC分类号： G02F1/1393 , G02F1/133371 , G02F1/133707 , G02F1/133788 , G02F2001/133757 , G02F2001/134345
摘要： A liquid crystal display has a pair of substrates with liquid crystal sealed between them. A polymer layer regulates directions in which the liquid crystal molecules tilt. A plurality of gate bus lines and a plurality of drain bus lines are provided on one of the substrates. Color filters and a pixel electrode are provided on the substrate. The pixel electrode includes a first sub-pixel electrode and a second sub-pixel electrode. A common electrode is provided on the other substrate. A first thin film transistor is connected to the first sub-pixel electrode, a second thin film transistor is connected to the second sub-pixel electrode, and a third thin film transistor is connected to the second sub-pixel electrode. The first and second thin film transistors are both connected to a first gate bus line, and the third thin film transistor is connected to a second bus line.
摘要翻译：液晶显示器具有一对在它们之间被密封的液晶基板。聚合物层调节液晶分子倾斜的方向。在一个基板上设置多条栅极总线和多条漏极总线。滤色器和像素电极设置在基板上。像素电极包括第一子像素电极和第二子像素电极。在另一基板上设置公共电极。第一薄膜晶体管连接到第一子像素电极，第二薄膜晶体管连接到第二子像素电极，第三薄膜晶体管连接到第二子像素电极。第一和第二薄膜晶体管都连接到第一栅极总线，并且第三薄膜晶体管连接到第二总线。

10. 发明授权

US08159510B2 Liquid crystal display 失效
标题翻译：液晶显示器
公开(公告)号：US08159510B2
公开(公告)日：2012-04-17
申请号：US12584045
申请日：2009-08-28
申请人： Kazuya Ueda
发明人： Kazuya Ueda
IPC分类号： G09G3/36
CPC分类号： G02F1/133707 , G02F1/1343 , G02F1/1393 , G02F2001/133769
摘要： The present invention provides a liquid crystal display including a liquid crystal display panel and a drive section performing divisional drive operation which includes first and second drive operations. The first drive operation performs a driving process with a first drive voltage higher than an original application voltage, and the second drive operation performs a driving process with a second drive voltage lower than the original application voltage. The liquid crystal display panel includes one or more pixel electrodes each having a plurality of slits, and one or more alignment control electrodes provided in one or more regions corresponding to one or more of the slits of the pixel electrode. The alignment control electrode configures a capacitive element in cooperation with the pixel electrode. Electric potential of the pixel electrode is lower than that of the alignment control electrode.
摘要翻译：本发明提供一种包括液晶显示面板和执行分割驱动操作的驱动部分的液晶显示器，其包括第一和第二驱动操作。第一驱动操作执行具有高于原始施加电压的第一驱动电压的驱动处理，并且第二驱动操作执行具有低于原始施加电压的第二驱动电压的驱动处理。液晶显示面板包括一个或多个像素电极，每个像素电极具有多个狭缝，以及设置在与像素电极的一个或多个狭缝对应的一个或多个区域中的一个或多个取向控制电极。对准控制电极与像素电极配合构成电容元件。像素电极的电位低于取向控制电极的电位。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式