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1. 发明授权

US5056121A Circuit for obtaining accurate timing information from received signal 失效
标题翻译：从接收信号中获取准确时序信息的电路
公开(公告)号：US5056121A
公开(公告)日：1991-10-08
申请号：US326175
申请日：1989-03-20
申请人： Shinji Ohta , Misao Fukuda , Toshitaka Tsuda
发明人： Shinji Ohta , Misao Fukuda , Toshitaka Tsuda
IPC分类号： H04L7/00 , H04L7/02 , H04L7/033
CPC分类号： H04L7/0062 , H04L7/0004
摘要： A circuit for obtaining accurate timing information from a received signal, first, obtains an impulse response at a certain phase, which phase is determined based on a reference phase of a receiver clock, and then the obtained impulse response is compared with a reference level. As the reference level: a predetermined value just below the maximum value of the overall impulse response; an impulse response at another phase; or an impulse response at the same phase in a previous period, is used. The reference phase is controlled, according to the result of the comparison.

2. 发明授权

US5475383A Cross-point type switch using common memories 失效
标题翻译：交叉点式开关采用普通的记忆
公开(公告)号：US5475383A
公开(公告)日：1995-12-12
申请号：US849670
申请日：1992-03-11
申请人： Shinji Ohta , Tomohiro Shinomiya , Hiroshi Takeo , Misao Fukuda , Kazuo Iguchi
发明人： Shinji Ohta , Tomohiro Shinomiya , Hiroshi Takeo , Misao Fukuda , Kazuo Iguchi
IPC分类号： H04Q3/52 , H04L12/931 , H04Q1/00
CPC分类号： H04L12/5601 , H04L49/108 , H04L49/1576 , H04L49/255 , H04L2012/5681
摘要： A cross-point type switch includes a plurality of basic elements arranged in rows and columns so as to form a matrix arrangement of the basic elements. Each of the basic elements includes a plurality of input ports, output ports, expanded input ports and expanded output ports. A write/read part is connected to a common memory and has the function of writing data into the common memory and reading out the data from the common memory. A selector part selectively outputs either the data read out from the common memory or data from the expanded input ports to the output ports. The expanded output ports are directly connected to the input ports.
摘要翻译：交叉点型开关包括以行和列布置的多个基本元件，以形成基本元件的矩阵排列。每个基本元件包括多个输入端口，输出端口，扩展输入端口和扩展输出端口。写/读部分连接到公共存储器，并且具有将数据写入公共存储器并从公共存储器读出数据的功能。选择器部分选择性地将从公共存储器读出的数据或从扩展的输入端口的数据输出到输出端口。扩展的输出端口直接连接到输入端口。

3. 发明授权

US5353305A Initial training apparatus for use in a transmitter and receiver apparatus 失效
标题翻译：用于发射机和接收机设备的初始训练装置
公开(公告)号：US5353305A
公开(公告)日：1994-10-04
申请号：US465225
申请日：1990-02-14
申请人： Misao Fukuda , Shinji Ohta , Seiji Miyoshi , Seiichi Yamato , Kazuyoshi Maruyama , Yutaka Awata , Kinji Kawada
发明人： Misao Fukuda , Shinji Ohta , Seiji Miyoshi , Seiichi Yamato , Kazuyoshi Maruyama , Yutaka Awata , Kinji Kawada
IPC分类号： H04B3/23 , H03H7/30
CPC分类号： H04B3/145 , H04B3/238 , H04B3/231 , H04B3/235
摘要： An initial gain of an automatic equalizer is fixed to a predetermined value. Then, the most appropriate gain of the automatic equalizer is determined when a training signal is received by the automatic equalizer. An echo replica signal produced by an echo canceler is multiplied by the value obtained by dividing the most appropriate gain by the initial gain. Thus, the echo replica signal is corrected to cancel the echo signal included in the output of the automatic equalizer. The sampling rate of the A/D converter used in the transmitter and receiver is shifted by a predetermined value from the transmission line rate at an initial training stage. Thereafter, the sampling rate of the A/D converter is determined to be near that of the transmission line.
摘要翻译： PCT No.PCT / JP89 / 00595 Sec。 371 1990年2月14日第 102（e）1990年2月14日PCT PCT。1989年6月14日PCT公布。第WO89 / 12934号公报日期为1989年12月28日。自动均衡器的初始增益固定为预定值。然后，当自动均衡器接收到训练信号时，确定自动均衡器最合适的增益。由回波消除器产生的回波复制信号乘以通过将最适当的增益除以初始增益而获得的值。因此，校正回波复制信号以消除包括在自动均衡器的输出中的回波信号。在发射机和接收机中使用的A / D转换器的采样率在初始训练阶段从传输线路速率偏移预定值。此后，A / D转换器的采样率被确定为接近传输线的采样率。

4. 发明授权

US07196912B2 Lighting apparatus for discharge lamp 失效
标题翻译：放电灯照明装置
公开(公告)号：US07196912B2
公开(公告)日：2007-03-27
申请号：US11223538
申请日：2005-09-09
申请人： Shinji Ohta , Tomoyuki Ichikawa
发明人： Shinji Ohta , Tomoyuki Ichikawa
IPC分类号： H02M3/335
CPC分类号： H05B41/2921 , H05B41/2883
摘要： In a lighting apparatus for a discharge lamp, a mask signal against a re-arc voltage is correctly generated to detect a lamp voltage accurately in view of a support to high frequency lighting such that the detection of the lamp voltage is not affected by the re-arc voltage. The lighting apparatus for the discharge lamp comprises a DC-AC converter for receiving an input voltage from a DC power supply to convert the input voltage to an AC voltage; detecting means for detecting a lamp voltage associated with a discharge lamp or a lamp voltage and a lamp current; and a signal generator circuit for generating a mask signal for excluding a re-arc voltage, which occurs at the time the polarity is inverted, from items to be detected, in the event of a detection of the lamp voltage. The signal generator circuit detects the lamp voltage or lamp current or a voltage at an output stage of the DC-AC converter to correctly capture a polarity inversion timing to generate a mask signal against the re-arc voltage. A timing shift of the mask signal can be limited within an allowable range even if the discharge lamp is lit at a high frequency.
摘要翻译：在用于放电灯的照明装置中，正确地产生抵抗再电弧电压的掩模信号，以便在对高频照明的支持方面准确地检测灯电压，使得灯电压的检测不受再次的影响 -arc电压。用于放电灯的照明装置包括DC-AC转换器，用于从DC电源接收输入电压以将输入电压转换为AC电压; 用于检测与放电灯相关联的灯电压或灯电压和灯电流的检测装置; 以及信号发生器电路，用于在检测到灯电压的情况下产生用于排除在极性反转时发生的再电弧电压的掩模信号。信号发生器电路检测灯电压或灯电流或DC-AC转换器的输出级的电压，以正确捕获极性反转定时，以产生抵抗电弧电压的掩模信号。即使放电灯以高频点亮，掩模信号的定时偏移也可以被限制在容许范围内。

5. 发明授权

US07176638B2 Discharge lamp lighting circuit 失效
标题翻译：放电灯点亮电路
公开(公告)号：US07176638B2
公开(公告)日：2007-02-13
申请号：US10385679
申请日：2003-03-12
申请人： Masayasu Ito , Shinji Ohta
发明人： Masayasu Ito , Shinji Ohta
IPC分类号： G05F1/00
CPC分类号： H05B41/2926 , H05B41/2886 , Y02B20/202 , Y02B20/208 , Y10S315/07
摘要： A discharge lamp lighting circuit has a structure of a voltage resonance type including a transformer and a switching element to be provided on a primary side thereof as a DC—DC converting circuit for converting a DC input voltage into a desirable DC voltage. The lighting circuit further includes a control circuit serving to ON/OFF control the switching element, thereby controlling an output voltage Vout of the DC—DC converting circuit, and has a function of a current limitation related to the switching element. In the lighting circuit, if the output voltage Vout is raised, a current flowing to the switching element is limited to be decreased. Consequently, a voltage applied to the switching element can be suppressed, and furthermore, the winding ratio of the transformer does not need to be increased. Accordingly, it is possible to prevent an electrical efficiency from being deteriorated.
摘要翻译：放电灯点亮电路具有包括变压器和开关元件的电压共振型结构，作为用于将直流输入电压转换成期望的直流电压的DC-DC转换电路。点亮电路还包括用于对开关元件进行ON / OFF控制的控制电路，从而控制DC-DC转换电路的输出电压Vout，并且具有与开关元件相关的电流限制的功能。在点亮电路中，如果输出电压Vout升高，则流向开关元件的电流被限制为减小。因此，可以抑制施加到开关元件的电压，此外，变压器的绕组比不需要增加。因此，可以防止电效率劣化。

6. 发明授权

US07075806B2 DC voltage conversion circuit 失效
标题翻译：直流电压转换电路
公开(公告)号：US07075806B2
公开(公告)日：2006-07-11
申请号：US10861297
申请日：2004-06-04
申请人： Tomoyuki Ichikawa , Shinji Ohta
发明人： Tomoyuki Ichikawa , Shinji Ohta
IPC分类号： H02M5/24
CPC分类号： H02M3/1563 , H05B41/282 , H05B41/2886 , Y02B20/183 , Y02B20/202
摘要： In a fly-back DC voltage conversion circuit, a transformer accumulates energy during the on-state of a switching element, and the accumulated energy is outputted from a secondary winding during the off-state of the switching element. The switching element is placed in the on-state when the accumulated energy is completely outputted from the secondary winding. A voltage applied to the switching element is differentiated by a capacitor to detect a discharge termination point at which the current of the transformer becomes zero to change a switching frequency of the switching element. The DC voltage conversion circuit can attain control in a current boundary state without significantly increasing cost.
摘要翻译：在回扫直流电压转换电路中，变压器在开关元件的导通状态下蓄积能量，并且在开关元件的截止状态期间从次级绕组输出累积的能量。当累积能量从次级绕组完全输出时，开关元件置于导通状态。施加到开关元件的电压由电容器区分，以检测变压器的电流为零的放电终止点，以改变开关元件的开关频率。直流电压转换电路可以在当前边界状态下获得控制，而不会显着增加成本。

7. 发明申请

US20060055346A1 Lighting apparatus for discharge lamp 失效
标题翻译：放电灯照明装置
公开(公告)号：US20060055346A1
公开(公告)日：2006-03-16
申请号：US11223538
申请日：2005-09-09
申请人： Shinji Ohta , Tomoyuki Ichikawa
发明人： Shinji Ohta , Tomoyuki Ichikawa
IPC分类号： H05B41/36
CPC分类号： H05B41/2921 , H05B41/2883
摘要： In a lighting apparatus for a discharge lamp, a mask signal against a re-arc voltage is correctly generated to detect a lamp voltage accurately in view of a support to high frequency lighting such that the detection of the lamp voltage is not affected by the re-arc voltage. The lighting apparatus for the discharge lamp comprises a DC-AC converter for receiving an input voltage from a DC power supply to convert the input voltage to an AC voltage; detecting means for detecting a lamp voltage associated with a discharge lamp or a lamp voltage and a lamp current; and a signal generator circuit for generating a mask signal for excluding a re-arc voltage, which occurs at the time the polarity is inverted, from items to be detected, in the event of a detection of the lamp voltage. The signal generator circuit detects the lamp voltage or lamp current or a voltage at an output stage of the DC-AC converter to correctly capture a polarity inversion timing to generate a mask signal against the re-arc voltage. A timing shift of the mask signal can be limited within an allowable range even if the discharge lamp is lit at a high frequency.
摘要翻译：在用于放电灯的照明装置中，正确地产生抵抗再电弧电压的掩模信号，以便在对高频照明的支持方面准确地检测灯电压，使得灯电压的检测不受再次的影响 -arc电压。用于放电灯的照明装置包括DC-AC转换器，用于从DC电源接收输入电压以将输入电压转换为AC电压; 用于检测与放电灯相关联的灯电压或灯电压和灯电流的检测装置; 以及信号发生器电路，用于在检测到灯电压的情况下产生用于排除在极性反转时发生的再电弧电压的掩模信号。信号发生器电路检测灯电压或灯电流或DC-AC转换器的输出级的电压，以正确捕获极性反转定时，以产生抵抗电弧电压的掩模信号。即使放电灯以高频点亮，掩模信号的定时偏移也可以被限制在容许范围内。

8. 发明申请

US20060049774A1 Peak detecting circuit and discharge lamp lighting device 审中-公开
标题翻译：峰值检测电路和放电灯照明装置
公开(公告)号：US20060049774A1
公开(公告)日：2006-03-09
申请号：US11212552
申请日：2005-08-25
申请人： Tomoyuki Ichikawa , Shinji Ohta
发明人： Tomoyuki Ichikawa , Shinji Ohta
IPC分类号： H05B37/02
CPC分类号： H05B41/2921 , G01R19/04
摘要： A peak detecting circuit 1 comprises an operational amplifier 2, a plurality of transistors 3 and 4 to be operated upon receipt of an output signal, and a holding capacitor 5. The transistors 3 and 4 are used as emitter followers or source followers, and the output signal of the transistor 3 is input to the operational amplifier 2 to obtain a negative feedback and the output signal of the transistor 3 is supplied to the capacitor 5. Moreover, a discharging resistor is provided in parallel with the capacitor 5 to intentionally provide a droop. Consequently, it is possible to follow a variation in the peak of an input signal which is changed momentarily.
摘要翻译：峰值检测电路1包括运算放大器2，在接收到输出信号时被操作的多个晶体管3和4以及保持电容器5.晶体管3和4用作发射极跟随器或源极跟随器，并且晶体管3的输出信号被输入到运算放大器2以获得负反馈，并且晶体管3的输出信号被提供给电容器5.此外，与电容器5并联设置放电电阻器，以有意地提供下垂因此，可以跟随瞬时变化的输入信号的峰值的变化。

9. 发明授权

US06246649B1 Optical disc reproducing apparatus and method 有权
标题翻译：光盘再现装置及方法
公开(公告)号：US06246649B1
公开(公告)日：2001-06-12
申请号：US09201437
申请日：1998-11-30
申请人： Shinji Ohta , Hitoshi Sakaguchi , Kazushi Yoshikawa
发明人： Shinji Ohta , Hitoshi Sakaguchi , Kazushi Yoshikawa
IPC分类号： G11B700
CPC分类号： G11B27/24 , G11B7/005 , G11B20/14 , G11B27/3027 , G11B2020/1269 , G11B2220/218 , G11B2220/2545
摘要： The optical disc reproducing apparatus comprises an ATIP demodulator which is supplied, from a matrix amplifier, with a wobble signal incorporating an address information in a modulated component thereof. In the ATIP demodulator, the free-run frequencies of the pair of VCOs change correspondingly to a moved position of a sled. Therefore, the ATIP demodulator can work well even if the carrier frequency of the wobble signal changes.
摘要翻译：光盘重放装置包括一个ATIP解调器，它从矩阵放大器提供一个摆放信号，该摆动信号在其调制分量中包含一个地址信息。在ATIP解调器中，一对VCO的自由运行频率相应地改变为滑架的移动位置。因此，即使摆动信号的载波频率发生变化，ATIP解调器也能正常工作。

10. 发明授权

US08120264B2 Discharge lamp lighting circuit 有权
标题翻译：放电灯点亮电路
公开(公告)号：US08120264B2
公开(公告)日：2012-02-21
申请号：US12398279
申请日：2009-03-05
申请人： Takao Muramatsu , Tomoyuki Ichikawa , Shinji Ohta
发明人： Takao Muramatsu , Tomoyuki Ichikawa , Shinji Ohta
IPC分类号： H05B37/00
CPC分类号： H05B41/2881 , H05B41/042
摘要： A discharge lamp lighting circuit for supplying an AC power to a discharge lamp includes first and second converters for receiving a DC voltage and stepping up the voltage. A controlling circuit drives the first and second converters CON1, CON2 alternately at a first frequency and stops an operation of a side that is not driven such that the AC power is supplied to the discharge lamp to execute a lighting operation.
摘要翻译：用于向放电灯提供AC电力的放电灯点亮电路包括用于接收DC电压并提高电压的第一和第二转换器。控制电路以第一频率交替驱动第一和第二转换器CON1，CON2，并且停止未被驱动的一侧的操作，使得向放电灯提供AC电力以执行点亮操作。

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