公开(公告)号：US5321526A

公开(公告)日：1994-06-14

申请号：US852945

申请日：1992-03-17

申请人： Shinya Takenaka

发明人： Shinya Takenaka

IPC分类号： H04N1/407 ,  G06K9/38 ,  G06T1/00 ,  H04N1/40

CPC分类号： G06K9/38 ,  G06K2209/01

摘要： In the white level detection circuit for an optical image reader, for a low value portion in an image, the white level signal corresponding to an image signal of a high value background portion which precedes to the low value portion is held steady. Accordingly, even if the low value image portion has a long duration, the white level signal may be kept at a proper value for the image signal corresponding to the low value image signal. For the high value background portion, the white level signal that immediately follows a variation of the image signal can be obtained. Therefore, a proper white level signal can be generated for the background portion. Various processing applied to the image signal on the basis of the white level signal may be performed in a satisfactory manner. As a consequence, the read performance of the optical image reader may be remarkably improved.

摘要翻译： 在用于光学图像读取器的白色电平检测电路中，对于图像中的低值部分，与低值部分之前的高值背景部分的图像信号相对应的白电平信号保持稳定。 因此，即使低值图像部分具有长持续时间，也可以将白电平信号保持在对应于低值图像信号的图像信号的适当值。 对于高值背景部分，可以获得紧跟图像信号变化的白电平信号。 因此，可以为背景部分生成适当的白电平信号。 可以以令人满意的方式执行基于白电平信号对图像信号应用的各种处理。 结果，可以显着提高光学读取器的读取性能。

公开(公告)号：US5245167A

公开(公告)日：1993-09-14

申请号：US724923

申请日：1991-07-02

申请人： Shinya Takenaka

发明人： Shinya Takenaka

IPC分类号： G06K7/10 ,  G06K7/14

CPC分类号： G06K7/1491 ,  G06K7/14

摘要： A bar-code reading apparatus in which a bar-code is scanned and processed for recognition of the bar-code on the basis of the scanning comprises scanning signal storage means for storing scanning signals which are obtained by scanning the bar-code and which correspond to bars and/or spaces scanned in at least two successive scannings. A counter counts the number of bars and/or spaces scanned in each scanning, while a number-of-bars storage means stores count values of the counter means in at least two successive scannings. A first comparison means compares the respective count values of the counter means in the last two scannings stored in the number-of-bars storage means with each other and generates an enabling signal when the count value in the last scanning is not larger than that in the preceding scanning. Finally, a recognition means responds to the enabling signal and operates to read the scanning signal preceding the last signal stored in the scanning signal storage means, thereby performing a process for recognizing the bar-code.

公开(公告)号：US5148008A

公开(公告)日：1992-09-15

申请号：US789803

申请日：1991-11-12

申请人： Shinya Takenaka

发明人： Shinya Takenaka

IPC分类号： G02B26/10 ,  G06K7/10 ,  G06K9/20 ,  G06T1/00

CPC分类号： G06K7/10851 ,  G06K2207/1018

摘要： A mark reading device that reads marks such as a bar code, or the like on a remote surface. A laser beam is outputted, deflected through a scan angle and the reflected energy is read at a detector. This energy is processed and converted to a usable format for input into a computer, cash register, or any type of data collection device. The present invention improves depth of field and readability by varying the output energy of the laser after each successive scan, thus providing a range of energy levels at the detector.

公开(公告)号：US5331142A

公开(公告)日：1994-07-19

申请号：US826378

申请日：1992-01-27

申请人： Shinya Takenaka

发明人： Shinya Takenaka

IPC分类号： G02B26/10 ,  G06K7/10

CPC分类号： G06K7/10851

摘要： A scan velocity detector for detecting scan velocity when a surface of an object is scanned with a beam of light generated by a light-projecting element; the scan velocity detector comprising light-receiving element to receive light which is reflected, threshold-level setting element for setting threshold levels, delay element for delaying the output of the light-receiving element and counting element for counting the time from when the output of the delay element exceeds a certain threshold level until it reaches a different threshold level; the scan velocity detector being an integral part of a bar code scanner, or similar device.

摘要翻译： 一种扫描速度检测器，用于当用由光投射元件产生的光束扫描物体的表面时检测扫描速度; 所述扫描速度检测器包括用于接收被反射的光的光接收元件，用于设置阈值电平的阈值级设置元件，用于延迟所述光接收元件的输出的延迟元件和用于计数从输出 延迟元件超过一定的阈值电平，直到其达到不同的阈值电平; 扫描速度检测器是条形码扫描器或类似装置的组成部分。

公开(公告)号：US4586795A

公开(公告)日：1986-05-06

申请号：US654049

申请日：1984-09-24

申请人： Kimizo Ono ,  Shinya Takenaka ,  Katsuyoshi Sunago

发明人： Kimizo Ono ,  Shinya Takenaka ,  Katsuyoshi Sunago

IPC分类号： A61B18/20 ,  B23K26/06 ,  B23K26/08 ,  G02B6/00 ,  G02B6/10 ,  G02B17/06

CPC分类号： B23K26/0643 ,  B23K26/06 ,  B23K26/0604 ,  B23K26/0648 ,  B23K26/0665 ,  G02B19/0023 ,  G02B19/0033 ,  G02B6/10

摘要： A laser waveguide is developed which uses various combinations of convex and concave mirrors in conjugate pairs. The waveguide is made more effications by arranging the mirrors and selecting the reflective surfaces thereof so that the diametral increase of plurality of parallel light beams is checked, or the diameter reduced.

摘要翻译： 开发了一种使用共轭对中的凸面和凹面镜的各种组合的激光波导。 波导通过布置反射镜并选择其反射表面而产生更多的效果，使得检查多个平行光束的直径增加或直径减小。

公开(公告)号：US4517973A

公开(公告)日：1985-05-21

申请号：US395306

申请日：1982-07-06

申请人： Katsuyoshi Sunago ,  Shinya Takenaka

发明人： Katsuyoshi Sunago ,  Shinya Takenaka

IPC分类号： A61B18/20 ,  A61B18/22 ,  A61B17/36

CPC分类号： A61B18/22

摘要： A laser scalpel in which optical fiber is used as the optical wave guide and the optical fiber is guided from a laser main body housing a laser source therein to the areas to be irradiated along a shore means provided on the laser main body is disclosed. The optical fiber is provided with a hand piece on the exterior of the forward end portion. The hand piece is so constructed that it facilitates the directing of the forward end of the fiber toward the areas to be irradiated. A supporting wire means is provided along the shore means so as to be axially movable. The forward end of the wire means is connected to the hand piece and the rear end of the wire means is connected to a balancing means for counter-balancing at least the weight of said hand piece.

摘要翻译： 公开了一种激光手术刀，其中使用光纤作为光波导，并且光纤从其中容纳​​激光源的激光主体被引导到沿着设置在激光器主体上的岸上装置的被照射区域。 光纤在前端部的外部设置有手工片。 手持件被构造成便于将纤维的前端引向待照射的区域。 沿着岸上装置提供支撑线装置以便可轴向移动。 电线装置的前端连接到手持件，并且电线装置的后端连接到平衡装置，用于至少平衡所述手持件的重量。

公开(公告)号：US5223700A

公开(公告)日：1993-06-29

申请号：US839040

申请日：1992-02-18

申请人： Shinya Takenaka

发明人： Shinya Takenaka

IPC分类号： G06K7/10 ,  G02B26/10

CPC分类号： G06K7/10613 ,  G06K7/10623

摘要： A bar code reader reads a bar code by scanning a laser beam on a screen on which the bar code is displayed. The bar code reader has a beam scanning device for scanning the laser beam irradiated from a laser oscillator. The beam scanning device has a polygon mirror which is rotated and driven around an axis. The polygon mirror forms at least two kinds of flat reflecting surfaces for respectively scanning the laser beam along with the rotation of polygon mirror. Scanning angles by the reflecting surfaces are twice as large as opposite angles to which the reflecting surfaces correspond respectively. The laser beam is scanned at two or more kinds of scanning angles, that is, scanning angles and which are respectively adapted to the long and short bar codes. Therefore, the bar code can be accurately read irrespective of a length thereof.

摘要翻译： 条形码读取器通过在显示条形码的屏幕上扫描激光束来读取条形码。 条形码阅读器具有用于扫描从激光振荡器照射的激光束的光束扫描装置。 光束扫描装置具有围绕轴旋转和驱动的多面镜。 多面镜形成至少两种平面反射面，用于分别与多面镜的旋转扫描激光束。 反射面的扫描角度与反射面对应的相反角度的两倍。 激光束以两种或更多种扫描角度扫描，即扫描角度，并且分别适用于长条形和短条形码。 因此，无论其长度如何，都可以准确地读取条形码。

公开(公告)号：US5177343A

公开(公告)日：1993-01-05

申请号：US630252

申请日：1990-12-19

申请人： Shinya Takenaka

发明人： Shinya Takenaka

IPC分类号： G06K7/10

CPC分类号： G06K7/10851 ,  G06K2207/1018

摘要： A symbol reader for reading symbols on a symbol surface. An optical system including a laser, condensing lens and scanning mirror illuminate a symbol surface to be read with a laser beam, scanning across the symbol surface. A transducer measures the amount of light reflected from the symbol surface. A differentiating circuit develops a differential coefficient indicative of the change of light intensity as light scans the symbols being read. A control system adjusts the optical system illuminating the symbol surface so as to maximize the differential coefficient, thereby minimizing the diameter of the light beam to allow for adequate reading of the symbol surface at variable distances.

公开(公告)号：US4429392A

公开(公告)日：1984-01-31

申请号：US332776

申请日：1981-12-21

申请人： Kenichi Yoshida ,  Kimizo Ono ,  Katsuyoshi Sunago ,  Shinya Takenaka ,  Tohru Iwai

发明人： Kenichi Yoshida ,  Kimizo Ono ,  Katsuyoshi Sunago ,  Shinya Takenaka ,  Tohru Iwai

IPC分类号： H01S3/036 ,  H01S3/10

CPC分类号： H01S3/036

摘要： Signals for controlling the discharge current and laser gas pressure are provided in predetermined combination in accordance with a selected laser output level.

摘要翻译： 用于控制放电电流和激光气体压力的信号根据所选择的激光输出电平以预定的组合提供。

公开(公告)号：US5248871A

公开(公告)日：1993-09-28

申请号：US719173

申请日：1991-06-21

申请人： Shinya Takenaka

发明人： Shinya Takenaka

IPC分类号： G06K7/10 ,  H03G3/30

CPC分类号： G06K7/10851 ,  H03G3/3084

摘要： An automatic gain control (AGC) circuit for use in an optical code reader which eliminates error caused when regular reflecting light is directly incident on the detector element of the optical code reader. The AGC has a variable gain amplifier which receives a signal from the detection element and outputs a signal to a peak-holding circuit. The output from the peak-holding circuit is used to control the gain of the variable gain amplifier. A reset circuit resets the output of the peak-holding circuit either when the output reaches a predetermined level, or at regular intervals during the operation of the optical code reader. The output of the variable gain amplifier is fed to a binary circuit.