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公开(公告)号：US5636233A
公开(公告)日：1997-06-03
申请号：US458193
申请日：1995-06-02
申请人： Shinichi Sato , Munenori Ohtsuki , Isao Iwaguchi , Ichiro Shinoda
发明人： Shinichi Sato , Munenori Ohtsuki , Isao Iwaguchi , Ichiro Shinoda
CPC分类号： H01S5/06832 , G06K1/126 , H01S2301/02 , H01S5/0427
摘要： The present invention relates to a semiconductor laser control method used preferably for a reading control system such as a bar code reading device and to a semiconductor laser control device employing the above method. The object of the invention is to provide a semiconductor laser control device which can be controlled based on the output of a semiconductor laser, provides a stable laser output in a noise environment, enables easy output adjustment, and is immune to external thermal or electrical noises. In the semiconductor laser control method where the light amount of a light amount to current controllable semiconductor laser is subjected to a feedback control with a predetermined time constant while it is monitored, when the light amount is less than a predetermined value, the semiconductor laser is subjected to an feedback control with a first time constant. When the light amount is more than a predetermined value, the semiconductor laser is subjected to a feedback control with a second time constant.
摘要翻译： 本发明涉及一种半导体激光器控制方法，其优选用于诸如条形码读取装置的读取控制系统和采用上述方法的半导体激光器控制装置。 本发明的目的是提供一种半导体激光器控制装置，其可以基于半导体激光器的输出进行控制，在噪声环境中提供稳定的激光输出，能够容易地进行输出调节，并且免受外部热或电噪声 。 在对当前可控半导体激光器的光量的光量在监视时以预定时间常数进行反馈控制的半导体激光器控制方法中，当光量小于预定值时，半导体激光器 经受第一时间常数的反馈控制。 当光量大于预定值时，对半导体激光器进行第二时间常数的反馈控制。
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公开(公告)号：US5970184A
公开(公告)日：1999-10-19
申请号：US971571
申请日：1997-11-17
申请人： Hiroaki Katoh , Ichiro Sebata , Mitsuharu Ishii , Shinichi Sato
发明人： Hiroaki Katoh , Ichiro Sebata , Mitsuharu Ishii , Shinichi Sato
CPC分类号： G06K7/10871 , G06K7/10584 , G06K7/10851 , G06K2207/1012 , G06K2207/1018
摘要： A laser beam generation control system of an optical mark reader device including a laser generating element, a laser generation control unit, a laser scanner unit for scanning a mark, such as a bar code or the like, and a signal processor unit for photoconverting a reflected light to read thereof; wherein the laser beam generation control unit turns ON/OFF the laser generation element by a predetermined duty to carry out a generation of the laser intermittently. Further, when a reflected light from the mark is detected during an intermittent generation of the laser beam, the laser generation element is turned ON to generate a laser beam continuously; and when a reflected light from the mark is not detected for more than a predetermined first time period during a continuous generation of a laser beam, the system is switched from continuous generation to intermittent generation.
摘要翻译： 包括激光产生元件，激光产生控制单元，用于扫描诸如条形码等的标记的激光扫描器单元的光学标记读取器装置的激光束产生控制系统和用于光电转换的信号处理器单元 反射光读取; 其中，所述激光束产生控制单元以预定的负载接通/关闭所述激光产生元件，以间歇地执行所述激光的产生。 此外，当在激光束的间歇发生期间检测到来自标记的反射光时，激光产生元件被接通以连续地产生激光束; 并且当在连续生成激光束期间没有检测到来自标记的反射光超过预定的第一时间段时，系统从连续发生切换到间歇发生。
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33.发明授权Method and apparatus for extending and confirming the service life of semiconductor laser of bar code reader by detecting current increase corresponding to temperature of semiconductor laser 失效通过检测对应于半导体激光器温度的电流增加来延长和确认条形码读取器的半导体激光器的使用寿命的方法和装置
公开(公告)号：US5334826A
公开(公告)日：1994-08-02
申请号：US880025
申请日：1992-05-08
申请人： Shinichi Sato , Hiroaki Katoh
发明人： Shinichi Sato , Hiroaki Katoh
CPC分类号： H05B33/0851 , H01S5/0021 , H01S5/06825 , H05B37/03 , H01S5/0617 , H01S5/06804 , H01S5/06808 , H01S5/0683
摘要： A semiconductor laser control method and apparatus includes a semiconductor laser, a semiconductor laser control circuit, a drive current measuring unit, a detection unit, a warning unit, and a memory unit. The memory unit stores initial drive current values and corresponding temperatures. The detection unit performs a step of comparing an actual drive current value measured by the drive current measuring unit with the initial drive current value corresponding to an actual temperature. The warning unit performing a step of generating an alarm predicting the expiration of service life of the semiconductor laser, when the actual drive current value exceeds the corresponding initial drive current value by a specified percentage. Consequently, the near expiration of the service life of the semiconductor laser can be confirmed and therefore render the operational effects such as replacement of the semiconductor laser, without causing any hindrance to the operation.
摘要翻译： 半导体激光器控制方法和装置包括半导体激光器，半导体激光器控制电路，驱动电流测量单元，检测单元，警告单元和存储器单元。 存储单元存储初始驱动电流值和相应的温度。 检测单元执行将由驱动电流测量单元测量的实际驱动电流值与对应于实际温度的初始驱动电流值进行比较的步骤。 当实际驱动电流值超过相应的初始驱动电流值达指定百分比时，警告单元执行产生预测半导体激光器的使用寿命期满的报警的步骤。 因此，可以确认半导体激光器的使用寿命的近期到期，因此能够实现半导体激光器的更换等操作效果，而不会对操作造成任何障碍。
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公开(公告)号：US5724458A
公开(公告)日：1998-03-03
申请号：US354061
申请日：1994-12-06
申请人： Hiroaki Katoh , Ichiro Sebata , Mitsuharu Ishii , Shinichi Sato
发明人： Hiroaki Katoh , Ichiro Sebata , Mitsuharu Ishii , Shinichi Sato
CPC分类号： G06K7/10871 , G06K7/10584 , G06K7/10851 , G06K2207/1012 , G06K2207/1018
摘要： A laser beam generation control system of an optical mark reader device including a laser generating element, a laser generation control unit, a laser scanner unit for scanning a mark, such as a bar code or the like, and a signal processor unit for photoconverting a reflected light to read thereof; wherein the laser beam generation control unit turns ON/OFF the laser generation element by a predetermined duty to carry out a generation of the laser intermittently. Further, when a reflected light from the mark is detected during an intermittent generation of the laser beam, the laser generation element is turned ON to generate a laser beam continuously; and when a reflected light from the mark is not detected for more than a predetermined first time period during a continuous generation of a laser beam, the system is switched from continuous generation to intermittent generation.
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公开(公告)号：US5602861A
公开(公告)日：1997-02-11
申请号：US209743
申请日：1994-02-16
申请人： Hiroaki Kawai , Shinichi Sato
发明人： Hiroaki Kawai , Shinichi Sato
CPC分类号： G06K7/10851 , H01S3/0014 , G06K2207/1018
摘要： A device suitable for a laser-type bar code reader used in a POS (point of sales) system in the distribution industry, and more particularly, to a laser lighting control device in a laser scanner device which reads a bar code using a reflection light of a laser beam. A prolonged operational life and an improved reliability of the laser light source build-in device under intermittent light on/off control is achieved by monitoring its lighting time to execute the operational life control thereof. The laser lighting control device includes a laser light source, a drive unit for performing a light on/off drive of the laser light source to control the light on/off thereof, a control unit for outputting a light on/off command to the drive unit for laser light source control, and a timer unit for measuring the total lighting time of the laser light source.
摘要翻译： 一种适用于配电行业的POS（销售点）系统中使用的激光式条形码读取器的装置，更具体地，涉及一种使用反射光读取条形码的激光扫描装置中的激光照明控制装置 的激光束。 通过监控其照明时间来执行其操作寿命控制，实现了间歇光开/关控制下激光光源内置装置的延长的使用寿命和改进的可靠性。 激光照明控制装置包括激光光源，用于执行激光光源的开/关驱动以控制其开/关的驱动单元，用于向驱动器输出光开/关命令的控制单元 用于激光源控制的单元，以及用于测量激光源的总照明时间的定时器单元。
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36.发明授权
公开(公告)号：US5525784A
公开(公告)日：1996-06-11
申请号：US488364
申请日：1995-06-07
申请人： Hiroaki Kawai , Shinichi Sato
发明人： Hiroaki Kawai , Shinichi Sato
CPC分类号： G06K7/1486 , G06K7/14
摘要： A bar code demodulating method, in a first step, determines a number of modules, corresponding to the black bars present within a demodulating character of a bar code to be demodulated, with reference to reference black bars in a previously demodulated character and, in a second step, determines a number of modules corresponding to all white bars present within the demodulating character, based on a corresponding reference white bar in the previously demodulated character and, then, demodulates the demodulating character based on the respective numbers of modules determined in the first and second steps.
摘要翻译： 一种条形码解调方法，在第一步骤中，参考前面解调的字符中的参考黑条，确定与待解调的条形码的解码字符内存在的黑条对应的模块数量， 第二步骤，基于先前解调的字符中的对应的参考白条，确定与解调字符中存在的所有白条相对应的模块数量，然后基于在第一个解调字符中确定的模块的相应数量来解调解调字符 和第二步。
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公开(公告)号：US5451761A
公开(公告)日：1995-09-19
申请号：US91022
申请日：1993-07-14
申请人： Hiroaki Kawai , Shinichi Sato
发明人： Hiroaki Kawai , Shinichi Sato
CPC分类号： G06K7/1486 , G06K7/14
摘要： A bar code demodulating method includes a step of measuring lengths of successive characters of a bar code, a step of obtaining a ratio of the length of a demodulating character which is to be demodulated and the length of a previous character which is demodulated prior to the demodulating character, and a step of demodulating the demodulating character by correcting a width of at least one reference bar within the previous character based on the ratio and by obtaining a number of modules within the demodulating character based on the correction.
摘要翻译： 一种条形码解调方法包括测量条形码的连续字符的长度的步骤，获得要被解调的解调字符的长度的比率和在之前被解调的先前字符的长度的步骤 以及通过基于该比率校正前一个字符内的至少一个参考条的宽度并且基于校正获得解调字符内的模块数目来解调解调字符的步骤。
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38.发明授权
公开(公告)号：US5525785A
公开(公告)日：1996-06-11
申请号：US488371
申请日：1995-06-07
申请人： Hiroaki Kawai , Shinichi Sato
发明人： Hiroaki Kawai , Shinichi Sato
CPC分类号： G06K7/1486 , G06K7/14
摘要： A bar code demodulating method includes a step of measuring lengths of successive characters of a bar code, a second step of obtaining a ratio of the length of a demodulating character which is to be demodulated and the length of a preceding, demodulated character and a third step of demodulating the demodulating character by mutually different first and second demodulation schemes, selected in accordance with the obtained length ratio falling within respective, and different, first and second predetermined ranges.
摘要翻译： 一种条形码解调方法包括测量条形码的连续字符的长度的步骤，获得待解调的解调字符的长度与先前解调字符的长度的比率的第二步骤，以及第三 通过相互不同的第一和第二解调方案对解调字符进行解调的步骤，根据所获得的长度比选择在第一和第二预定范围内。
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公开(公告)号：US5128527A
公开(公告)日：1992-07-07
申请号：US501987
申请日：1990-03-29
申请人： Hiroaki Kawai , Shinichi Sato
发明人： Hiroaki Kawai , Shinichi Sato
CPC分类号： G06K7/1434 , G06K19/06056 , G06K7/0166 , G06K7/14 , G06K7/1491
摘要： A second bar code such as an add-on code which comprises only a character bar and is added to the side of the first bar code such as UPC, EAN and JAN which has a center bar and guard bar can be correctly read out. When the scanning is made from the first bar code side to the second bar code side, a write address produced when the right guard bar of the first bar code is recognized is used to access the data of the second bar code. Conversely, where the scanning is made from the second bar code side to the first bar code side, the write address produced when the center bar of the first bar code is recognized is used to access the second bar code after an arithmetic operation. Therefore, the first bar code can be clearly distinguished from the second bar code which is different in bar code system and the second bar code can be correctly read out.
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公开(公告)号：US08945265B2
公开(公告)日：2015-02-03
申请号：US13399395
申请日：2012-02-17
申请人： Akihiro Nakashima , Shinichi Sato , Akio Saiki , Kazuo Kobayashi
发明人： Akihiro Nakashima , Shinichi Sato , Akio Saiki , Kazuo Kobayashi
CPC分类号： F04C29/026 , F04C18/0215 , F04C27/008 , F04C29/12
摘要： A compressor compressing a fluid including lubricating oil includes, on the discharge side thereof, a first separation chamber for separating the lubricating oil by generating a swirling flow in the fluid. The first separation chamber includes: a circumferential wall; an inflow port that is formed in the circumferential wall and causes the fluid to flow into the first separation chamber; and a guiding plate extending from the circumferential wall. The guiding plate extends so as to face the inflow port in a direction where the fluid flows from the inflow port into the first separation chamber, and so as to deflect the fluid flow from the inflow port to guide it along an inner circumferential surface of the circumferential wall.
摘要翻译： 压缩包含润滑油的流体的压缩机在其排出侧包括用于通过在流体中产生旋流来分离润滑油的第一分离室。 第一分离室包括：周壁; 流入口，其形成在所述周壁上并使所述流体流入所述第一分离室; 以及从周壁延伸的引导板。 引导板沿着流入从流入口流入第一分离室的方向与流入口相对地延伸，从而使流体流从流入口偏转，沿着流入口的内周面引导 圆周壁。
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