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1. 发明授权

US5859818A Tilt servo apparatus for use in optical disc reproducing apparatus 失效
标题翻译：用于光盘再现装置的倾斜伺服装置
公开(公告)号：US5859818A
公开(公告)日：1999-01-12
申请号：US899334
申请日：1997-07-23
申请人： Kiyoshi Tateishi , Sakashi Ohtaki , Noriaki Murao
发明人： Kiyoshi Tateishi , Sakashi Ohtaki , Noriaki Murao
IPC分类号： G11B7/095 , G11B7/125 , G11B7/135 , G11B7/00
CPC分类号： G11B7/0956 , G11B7/1369 , G11B7/13927
摘要： A tilt servo apparatus in an optical disc reproducing apparatus operates promptly and certainly when reading recording information of an optical disc recorded at high density. The tilt servo apparatus is used in an optical disc reproducing apparatus having an optical pickup including a liquid crystal panel for an aberration correction on which a transparent electrode is formed and divided into segments of predetermined shapes, and irradiating a laser beam via the liquid crystal panel for the aberration correction and the objective lens, and receiving an obtained reflection light. The tilt servo apparatus has: tilt detecting for detecting a signal corresponding to a tilting angle in a radial direction between the information recording surface of the optical disc and an optical axis of the objective lens; and a driving circuit for variably driving voltages which are applied to the divided portions of the liquid crystal panel, respectively. The driving circuit drives so that predetermined voltages are applied to the respective divided segments of the liquid crystal panel according to a detection output of the tilt detecting and a phase difference between respective laser beams passing through the divided portions is adjusted, thereby correcting the aberration of the objective lens inclined at the tilting angle relative to the information recording surface of the optical disc.
摘要翻译：当读取以高密度记录的光盘的记录信息时，光盘再现装置中的倾斜伺服装置操作迅速且肯定。倾斜伺服装置用于具有光拾取器的光盘再现装置，该光学拾取器包括用于像差校正的液晶面板，其上形成有透明电极并被分成预定形状的段，并且经由液晶面板照射激光束用于像差校正和物镜，并且接收所获得的反射光。倾斜伺服装置具有：用于检测与光盘的信息记录表面和物镜的光轴之间的径向倾斜角相对应的信号的倾斜检测; 以及用于分别施加到液晶面板的分割部分的可变驱动电压的驱动电路。驱动电路驱动，使得根据倾斜检测的检测输出将预定电压施加到液晶面板的各个分割段，并且调节通过分割部分的各个激光束之间的相位差，从而校正物镜相对于光盘的信息记录表面倾斜倾斜角度。

2. 发明授权

US06218655B1 Optical pickup 有权
标题翻译：光学拾音
公开(公告)号：US06218655B1
公开(公告)日：2001-04-17
申请号：US09271624
申请日：1999-03-17
申请人： Masakazu Ogasawara , Sakashi Ohtaki , Kiyoshi Tateishi
发明人： Masakazu Ogasawara , Sakashi Ohtaki , Kiyoshi Tateishi
IPC分类号： G02B2740
CPC分类号： G11B7/1353 , G11B7/005 , G11B7/0901 , G11B7/131
摘要： An optical pickup for irradiating a light beam onto an information recording medium and receiving a light reflected by the medium, includes a light source for emitting a light beam, and a liquid crystal panel for diffracting the light beam to produce a main beam and a plurality of sub-beams to be irradiated on the medium. The liquid crystal panel included a first area in which a first group of grating patterns with predetermined pitches is formed and a second area in which a second group of grating patterns having the predetermined pitches is formed, and the first group of grating patterns and the second group of grating patterns are arranged on a plane with a gap area formed between the first area and the second area so as to form an integrated grating pattern. The optical pickup further includes a control unit for applying a first voltage to the first area to control a refractive index of the first area and applying a second voltage to the second area to control a refractive index of the second area, thereby to control a diffraction characteristic of the integrated grating pattern.
摘要翻译：用于将光束照射到信息记录介质上并接收由介质反射的光的光学拾取器包括用于发射光束的光源和用于衍射光束以产生主光束的多个液晶面板和多个的子光束照射在介质上。液晶面板包括其中形成具有预定间距的第一组光栅图案的第一区域和形成具有预定间距的第二组光栅图案的第二区域，并且第一组光栅图案和第二组光栅图案光栅图案组布置在平面上，在第一区域和第二区域之间形成有间隙区域，以形成集成的光栅图案。光拾取器还包括控制单元，用于向第一区域施加第一电压以控制第一区域的折射率并向第二区域施加第二电压以控制第二区域的折射率，由此控制衍射集成光栅图案的特点。

3. 发明授权

US06388967B2 Liquid crystal driving signal generating apparatus and optical disk reproducing apparatus with liquid crystal driving signal generating apparatus 失效
标题翻译：具有液晶驱动信号发生装置的液晶驱动信号发生装置和光盘再现装置
公开(公告)号：US06388967B2
公开(公告)日：2002-05-14
申请号：US09055703
申请日：1998-04-07
申请人： Junichi Furukawa , Kiyoshi Tateishi , Noriaki Murao , Hiroaki Abe
发明人： Junichi Furukawa , Kiyoshi Tateishi , Noriaki Murao , Hiroaki Abe
IPC分类号： G11B7135
CPC分类号： G11B7/13927 , G11B7/0956 , G11B7/1369
摘要： A liquid crystal driving signal generating apparatus comprises a PWM signal generator, a low pass filter for limiting a frequency band of a PWM signal outputted from the PWM signal generator, a liquid crystal panel connected to an output of the low pass filter, and a control means for controlling the PWM signal generator. The control means controls the PWM signal generator such that the PWM signal generator generates a PWM signal with a duty ratio corresponding to a refractive index to be set in the liquid crystal panel.
摘要翻译：液晶驱动信号发生装置包括PWM信号发生器，用于限制从PWM信号发生器输出的PWM信号的频带的低通滤波器，连接到低通滤波器的输出的液晶面板，以及控制用于控制PWM信号发生器的装置。控制装置控制PWM信号发生器，使得PWM信号发生器产生一个与在液晶面板中设置的折射率对应的占空比的PWM信号。

4. 发明授权

US06078556A System for producing a liquid crystal driving signal 失效
标题翻译：用于产生液晶驱动信号的系统
公开(公告)号：US06078556A
公开(公告)日：2000-06-20
申请号：US84354
申请日：1998-05-27
申请人： Junichi Furukawa , Kiyoshi Tateishi , Noriaki Murao
发明人： Junichi Furukawa , Kiyoshi Tateishi , Noriaki Murao
IPC分类号： G11B7/09 , G11B7/00 , G11B7/135
CPC分类号： G11B7/13927 , G11B7/0956 , G11B7/1369
摘要： A CPU is provided for producing a control signal. In accordance with the control signal, a modulated signal modulated in pulse width by the control signal is produced. The modulated signal has a predetermined duty ratio based on the control signal. A liquid crystal driving signal having the duty ratio based on the modulated signal is produced. The CPU is for producing the control signal for setting the duty ratio in accordance with a refractive index at each of the unit electrode of the liquid crystal panel.
摘要翻译：提供用于产生控制信号的CPU。根据控制信号，产生通过控制信号以脉冲宽度调制的调制信号。调制信号基于控制信号具有预定的占空比。产生具有基于调制信号的占空比的液晶驱动信号。 CPU用于产生用于根据液晶面板的每个单位电极处的折射率来设置占空比的控制信号。

5. 发明授权

US5886496A Tilt servo controlling apparatus 失效
标题翻译：倾斜伺服控制装置
公开(公告)号：US5886496A
公开(公告)日：1999-03-23
申请号：US61865
申请日：1998-04-17
申请人： Junichi Furukawa , Kiyoshi Tateishi , Noriaki Murao
发明人： Junichi Furukawa , Kiyoshi Tateishi , Noriaki Murao
IPC分类号： G11B7/095 , G11B7/135 , B64C17/02
CPC分类号： G11B7/0956
摘要： A tilt servo controlling apparatus is provided with: an optical pickup for emitting a light beam onto an optical record medium and detecting a reflection light from the optical record medium to thereby output a detection signal; a level detecting device for detecting a level of the detection signal outputted by the optical pickup; a tilt error correcting device for correcting a tilt error due to an aberration, which is generated by a tilt angle between (i) a normal line of a surface of the optical record medium at a position irradiated with the light beam and (ii) an optical axis of the light beam; and a tilt error correction controlling device for outputting a control signal to control a correction amount of the tilt error correcting device, by giving a variation to the control signal on a time base and adjusting the control signal so that the level detected by the level detecting device be optimized with respect to the variation of the control signal.
摘要翻译：倾斜伺服控制装置具有：光学拾取器，用于将光束发射到光学记录介质上并检测来自光学记录介质的反射光，从而输出检测信号; 电平检测装置，用于检测由光学拾取器输出的检测信号的电平; 倾斜误差校正装置，用于校正由像差引起的倾斜误差，该倾斜误差校正装置是由（i）在光束照射的位置处的光学记录介质的表面的法线之间的倾斜角度产生的，（ii）光束的光轴; 以及倾斜误差校正控制装置，用于输出控制信号以控制倾斜误差校正装置的校正量，通过对时基上的控制信号进行变化并调整控制信号，使得由电平检测检测到的电平器件相对于控制信号的变化进行优化。

6. 发明授权

US6137754A Search method for information record medium 失效
标题翻译：信息记录介质的搜索方法
公开(公告)号：US6137754A
公开(公告)日：2000-10-24
申请号：US63374
申请日：1998-04-21
申请人： Junichi Furukawa , Kiyoshi Tateishi , Noriaki Murao
发明人： Junichi Furukawa , Kiyoshi Tateishi , Noriaki Murao
IPC分类号： G11B7/09 , G11B7/095 , G11B7/125 , G11B7/00
CPC分类号： G11B7/0956 , G11B7/0945 , G11B7/1369 , G11B7/13925
摘要： A searching method for an information record medium has: an initial value data preparing process of (i) performing a search for a plurality of sampling positions arranged in a radial direction on the information record medium, (ii) actuating a tilt servo to correct an error due to a tilt of an optical axis of a light beam emitted onto the information record medium from a normal line of a surface of the information record medium at each of the sampling positions, (iii) extracting a tilt correction amount after the tilt servo is stabilized for each of the sampling positions and (iv) storing the extracted tilt correction amount in relation to respective one of the sampling positions corresponding to the extracted tilt correction amount into a memory as initial value data of the tilt correction amount in advance; an initial value determining process for determining an initial value of the tilt correction amount at a search target position of the search when the search is to be performed, on the basis of a content of the initial value data stored in the memory; and a tilt servo process for performing the tilt servo at the search target position by use of the initial value determined by the initial value determining process.
摘要翻译：一种用于信息记录介质的搜索方法具有：初始值数据准备处理，（i）在所述信息记录介质上对径向布置的多个采样位置进行搜索，（ii）致动倾斜伺服以校正由于在每个采样位置从信息记录介质的表面的法线发射到信息记录介质上的光束的倾斜倾斜的误差，（iii）在倾斜伺服之后提取倾斜校正量针对每个采样位置稳定，并且（iv）预先将倾斜校正量的初始值数据作为倾斜校正量的初始值数据存储到与提取的倾斜校正量相对应的相应的一个采样位置的提取的倾斜校正量作为存储器; 初始值确定处理，用于根据存储在存储器中的初始值数据的内容，确定要执行搜索时的搜索的搜索目标位置处的倾斜校正量的初始值; 以及用于通过使用由初始值确定处理确定的初始值在搜索目标位置执行倾斜伺服的倾斜伺服处理。

7. 发明申请

US20130090564A1 LIGHT DETECTING APPARATUS AND FLUID MEASURING APPARATUS 有权
标题翻译：光检测装置和流体测量装置
公开(公告)号：US20130090564A1
公开(公告)日：2013-04-11
申请号：US13805262
申请日：2010-06-24
申请人： Kiyoshi Tateishi , Atsuya Ito , Yoshinori Kimura
发明人： Kiyoshi Tateishi , Atsuya Ito , Yoshinori Kimura
IPC分类号： A61B5/026
CPC分类号： A61B5/0261 , G01F1/661 , G01F1/663 , G01F1/667 , G01P5/26 , G01S17/58
摘要： A light detecting apparatus includes: a first photoelectric conversion element unit (110) and a second photoelectric conversion element unit(120) each of which converts input light to an electric current and output it; an optical current transducer unit (100) for outputting, as a detected current, a differential current between an electric current outputted by the first photoelectric conversion element unit and an electric current outputted by the second photoelectric conversion element unit; and a first current/voltage converting unit (200) for amplifying the detected current outputted from the optical current transducer unit, converting it to a voltage signal, and outputting the voltage signal.
摘要翻译：光检测装置包括：将输入光转换为电流并输出的第一光电转换元件单元（110）和第二光电转换元件单元（120）用于输出由第一光电转换元件单元输出的电流与由第二光电转换元件单元输出的电流之间的差分电流作为检测电流的光电流传感器单元; 以及用于放大从光电流传感器单元输出的检测电流的第一电流/电压转换单元（200），将其转换为电压信号，并输出电压信号。

8. 发明申请

US20120105033A1 LIGHT AMOUNT DETECTING APPARATUS, AND LIGHT AMOUNT INFORMATION PROCESSING APPARATUS 有权
标题翻译：轻量检测装置和轻量信息处理装置
公开(公告)号：US20120105033A1
公开(公告)日：2012-05-03
申请号：US13380407
申请日：2009-07-01
申请人： Kiyoshi Tateishi , Yoshihiro Hanada , Michiaki Nakamura
发明人： Kiyoshi Tateishi , Yoshihiro Hanada , Michiaki Nakamura
IPC分类号： G05F1/10
CPC分类号： H03F3/45475 , G01J1/44 , H03F3/082 , H03F3/087 , H03F3/45183 , H03F3/4565 , H03F2203/45082 , H03F2203/45138 , H03F2203/45528 , H03F2203/45702
摘要： A light amount detecting apparatus includes: a photoelectric converting element converting quantity of light inputted to current; a current/voltage converting device having a positive input terminal connected to a first terminal of the photoelectric converting element, a negative input terminal connected to a second terminal of the photoelectric converting element, a negative output terminal for reversing polarity of a current inputted to the positive input terminal and outputting it as a voltage, a positive output terminal for reversing polarity of a current inputted to the negative input terminal and outputting it as a voltage, a first negative feedback resistor connecting the positive and negative output terminals, and a second negative feedback resistor connected between the negative and positive output terminals, the current/voltage converting device setting the photoelectric converting element in zero bias and converting the converted current to the voltage; and an amplifying device for amplifying the converted voltage.
摘要翻译：光量检测装置包括：光电转换元件，将输入到电流的光量进行转换; 电流/电压转换装置，具有连接到光电转换元件的第一端子的正输入端子，连接到光电转换元件的第二端子的负输入端子，用于反转输入到光电转换元件的电流的极性的负输出端子正输入端子并将其输出为电压;正输出端子，用于反转输入到负输入端子的电流的极性并将其输出为电压;第一负反馈电阻器，连接正极和负极输出端子;以及第二负极反馈电阻连接在负输出端和正输出端之间，电流/电压转换装置将光电转换元件设置为零偏置并将转换后的电流转换为电压; 以及用于放大转换电压的放大装置。

9. 发明授权

US08138746B2 Physical properties detection device and physical properties detection method 失效
标题翻译：物理性质检测装置及物理性质检测方法
公开(公告)号：US08138746B2
公开(公告)日：2012-03-20
申请号：US12532129
申请日：2007-03-20
申请人： Kiyoshi Tateishi , Takanori Maeda , Hideki Kobayashi , Tomotaka Yabe
发明人： Kiyoshi Tateishi , Takanori Maeda , Hideki Kobayashi , Tomotaka Yabe
IPC分类号： G01N27/00
CPC分类号： G11B9/02 , G11B9/06
摘要： A physical properties detection device comprising a probe to be placed near or touching a surface of a ferroelectric; an oscillation loop including the probe and capacitance within the ferroelectric; and detection means for detecting a physical properties of the ferroelectric on the basis of a frequency variation of a measurement signal generated in the oscillation loop, the frequency variation accompanying application of an alternating electric field to the ferroelectric; and the physical properties detection device is further comprising frequency conversion means for converting the frequency of the measurement signal to a low frequency and outputting the resulting signal as a converted measurement signal; frequency control means for controlling the frequency of the converted measurement signal so as to match a target frequency; frequency detection means for generating a frequency detection signal that has a signal level corresponding to the frequency of the converted measurement signal; and synchronous detection means for synchronously detecting the frequency detection signal on the basis of a synchronization signal.
摘要翻译：一种物理特性检测装置，包括放置在铁电体表面附近或接触铁电体的探针; 包括铁电体内探针和电容的振荡回路; 以及检测装置，用于基于在振荡环路中产生的测量信号的频率变化，伴随向铁电体施加交变电场的频率变化来检测铁电体的物理性质; 物理特性检测装置还包括频率转换装置，用于将测量信号的频率转换为低频，并将所得信号作为转换的测量信号输出; 频率控制装置，用于控制转换的测量信号的频率以便匹配目标频率; 频率检测装置，用于产生具有与转换的测量信号的频率对应的信号电平的频率检测信号; 以及用于基于同步信号同步检测频率检测信号的同步检测装置。

10. 发明授权

US08004958B2 Information recording/reproducing apparatus 失效
标题翻译：信息记录/重放装置
公开(公告)号：US08004958B2
公开(公告)日：2011-08-23
申请号：US12297421
申请日：2007-04-18
申请人： Takanori Maeda , Kiyoshi Tateishi
发明人： Takanori Maeda , Kiyoshi Tateishi
IPC分类号： G11B9/02
CPC分类号： G11B9/02 , B82Y10/00 , G11B9/1454 , Y10S977/947
摘要： A probe group is composed of, for instance, four probes adjacently arranged, and one modulation circuit is arranged for each probe group. At the time of recoding information, a changeover switch connects one of the four probes with the modulation circuit, and subsequently changes the probes to be connected with the modulation circuit while reciprocal movement of a recording medium is being controlled.
摘要翻译：探针组由例如四个探针相邻排列组成，每个探针组设置一个调制电路。在重新编码信息时，切换开关将四个探针中的一个连接到调制电路，随后在控制记录介质的往复运动的同时改变要与调制电路连接的探针。

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