Optical reading system
    1.
    发明授权
    Optical reading system 失效
    光学读取系统

    公开(公告)号:US5708418A

    公开(公告)日:1998-01-13

    申请号:US614112

    申请日:1996-03-12

    IPC分类号: G06K7/00 G06K7/10 G08B13/14

    CPC分类号: G08B13/1436

    摘要: An optical reading system including a warning sound for preventing theft of a portable optical reading apparatus (scanner). A timer is activated when movement of the scanner is detected by a movement detection device mounted on the scanner, indicating that the scanner has been lifted (moved) from a stationary condition. A user determination unit determines whether the movement of the scanner is caused by an authorized user. When the user is an authorized person, a timer is reset. When the timer is not reset during a predetermined time period, a warning sound is generated at a sound level which changes from a low sound level to a loud sound level over a period of time unless a predetermined operation is performed. In one embodiment, a second warning sound is generated at a stationary receiving station when the scanner does not respond to a polling signal.

    摘要翻译: 一种光学读取系统,包括用于防止便携式光学读取装置(扫描仪)的盗窃的警告声音。 当安装在扫描仪上的移动检测装置检测到扫描仪的移动时,定时器被激活,指示扫描器已经从静止状态提升(移动)。 用户确定单元确定扫描器的移动是否由授权用户引起。 当用户是授权人员时,定时器被复位。 当在预定时间段期间定时器不复位时,除非执行预定的操作,否则在一段时间内在从低声级改变到大声音级的声级产生警告声。 在一个实施例中,当扫描仪不对轮询信号作出响应时,在固定的接收站产生第二警告声。

    Optical code reading device with autofocussing
    2.
    发明授权
    Optical code reading device with autofocussing 失效
    具有自动对焦功能的光学代码读取装置

    公开(公告)号:US5122644A

    公开(公告)日:1992-06-16

    申请号:US731295

    申请日:1991-07-16

    IPC分类号: G06K7/10

    摘要: In a code reading device, which receives reflected light obtained by scanning a code represented on a recording medium with a laser light beam and decodes it to obtain the code, the reading probability is improved by varying the focusing position for every scanning period with the laser light beam.

    摘要翻译: 在代码读取装置中,其接收通过用激光束扫描记录介质上的代码获得的反射光并对其进行解码以获得代码,通过用激光器改变每个扫描周期的聚焦位置来提高读取概率 光束。

    Photoelectric touch panel
    3.
    发明授权
    Photoelectric touch panel 失效
    光电触摸屏

    公开(公告)号:US4868550A

    公开(公告)日:1989-09-19

    申请号:US140886

    申请日:1987-12-30

    IPC分类号: G06F3/042 G06F3/033 G09G3/00

    CPC分类号: G06F3/0421

    摘要: A photoelectric touch panel comprising arrays of equally spaced light emitting elements and photosensitive elements disposed in a frame configuration on the circumference of a CRT display screen in which a matrix of infrared beams is formed in front of the screen. The photoelectric touch panel has a light shielding plate formed into a comblike shape disposed such that each comb tooth thereof is interposed between said photosensitive elements.

    摘要翻译: 一种光电触摸面板,包括等距间隔的发光元件阵列和以CRT结构的圆周布置在框架结构中的感光元件,其中在屏幕前部形成有红外线束矩阵。 光电触摸面板具有形成为梳状的遮光板,其设置成使得其每个梳齿位于所述感光元件之间。

    Circuit for adjusting sensitivity of optical character reader and method
thereof
    4.
    发明授权
    Circuit for adjusting sensitivity of optical character reader and method thereof 失效
    用于调整光学字符读取器的灵敏度的电路及其方法

    公开(公告)号:US5382782A

    公开(公告)日:1995-01-17

    申请号:US157757

    申请日:1993-11-24

    IPC分类号: G06K7/10

    CPC分类号: G06K7/10851 G06K2207/1018

    摘要: A circuit for adjusting the sensitivity of an optical character reader in which light is applied to an information-recorded material by an LED array and the information is read by a line sensor. The optical character reader is switched to a sensitivity adjusting mode. It reads a reference material having uniform reflectivity on the surface. The read signal is A/D converted and the microcomputer 10 detects a discrepancy between the amounts of light depending on the different portions of the line sensor. Based upon the detection, the microcomputer sets the applying time of driving currents to the respective LEDs so that the light is uniformly applied to the reference material. The set value is stored in a memory. Thereafter, since the amounts of light from the LEDs of the LED array are adjusted according to the set value, the amount of the reflected light to the line sensor 5 can be uniform. Thus, a series analog voltage accurately responding to the darkness and brightness of the information can be obtained.

    摘要翻译: 用于调整光学字符读取器的灵敏度的电路,其中光通过LED阵列施加到信息记录材料,并且信息由线传感器读取。 光学字符读取器切换到灵敏度调整模式。 它读取在表面上具有均匀反射率的参考材料。 读取信号进行A / D转换,并且微计算机10根据线传感器的不同部分检测光量之间的差异。 基于检测,微型计算机将驱动电流的施加时间设定到各个LED,使得光均匀地施加到参考材料。 设置值存储在内存中。 此后,由于根据设定值调整来自LED阵列的LED的光量,所以能够使与线传感器5的反射光量一致。 因此,可以获得准确地响应于信息的暗度和亮度的串联模拟电压。

    Optical coordinate input device having waveform shaping circuit
    5.
    发明授权
    Optical coordinate input device having waveform shaping circuit 失效
    具有波形整形电路的光学坐标输入装置

    公开(公告)号:US4725726A

    公开(公告)日:1988-02-16

    申请号:US881192

    申请日:1986-07-02

    CPC分类号: G06F3/0421

    摘要: An optical coordinate input device comprises a plurality of light emitting elements arranged so that their optical axes intersect mutually, a plurality of light receiving elements arranged so as to receive the light signals of the light emitting elements, a drive circuit for turning on/off the light emitting elements on the basis of a drive signal to cause them to provide the light signals, a first switching circuit for switching the output given from the drive circuit to among the light emitting elements, a second switching circuit for switching the signals given from the light receiving elements in correspondence with the light emitting element lighting, and a waveform shaping circuit for regulating the signal given from the second switching circuit to a certain voltage level on the basis of the drive signal.Since the waveform shaping circuit exerts its regulation action on the basis of the drive signal, the present optical coordinate input device can provide reliably the coordinate signal even if operated at a high speed without depending upon the precision of optical elements and without being influenced by disturbance light, switching noises, and the like.

    摘要翻译: 光学坐标输入装置包括多个发光元件,其布置成使得它们的光轴相互交叉,多个光接收元件布置成接收发光元件的光信号,驱动电路用于打开/关闭 基于驱动信号使发光元件使其提供光信号;第一开关电路,用于将从驱动电路给出的输出切换到发光元件;第二开关电路,用于切换从 与发光元件照明相对应的光接收元件,以及用于根据驱动信号将从第二开关电路给出的信号调整到一定电压电平的波形整形电路。 由于波形整形电路基于驱动信号进行调节动作,因此即使在高速运转的情况下,本光轴坐标输入装置可以可靠地提供坐标信号,而不依赖于光学元件的精度而不受干扰的影响 光,切换噪声等。

    Dustproof structure for optical coordinate input apparatus
    6.
    发明授权
    Dustproof structure for optical coordinate input apparatus 失效
    光学坐标输入装置防尘结构

    公开(公告)号:US4769535A

    公开(公告)日:1988-09-06

    申请号:US938548

    申请日:1986-12-05

    IPC分类号: G01V8/20 G01V9/04

    CPC分类号: G01V8/20

    摘要: An optical coordinates input apparatus includes pairs of first light emitting elements and first light receiving elements, a plurality of pairs of second light emitting elements and second light receiving element having a light path intersecting a light path of the first light emitting elements and the first light receiving elements, and a filter section disposed on the front side of the light paths of the optical semiconductor elements for passing therethrough a light in the paths. The apparatus further includes a device from preventing a flow of an air containing dust from entering a space between the optical conductor elements and the filter section.

    摘要翻译: 光学坐标输入装置包括成对的第一发光元件和第一光接收元件,多对第二发光元件和第二光接收元件,其具有与第一发光元件的光路相交的光路和第一光 接收元件和设置在光学半导体元件的光路的前侧上的滤光器部分,用于使路径中的光通过。 该装置还包括防止含有灰尘的空气流入光导体元件和过滤器部分之间的空间的装置。

    Touch panel coordinate input device having light filter
    7.
    发明授权
    Touch panel coordinate input device having light filter 失效
    具有滤光片的触摸屏坐标输入装置

    公开(公告)号:US4751379A

    公开(公告)日:1988-06-14

    申请号:US914283

    申请日:1986-10-02

    CPC分类号: G06F3/0421

    摘要: A photodetection type coordinate input device includes a frame having a substantially rectangular opening formed in the center, a light-emitting element array composed of a plurality of light-emitting elements disposed along each of the two sides of the opening of the frame, a light-receiving element array composed of a plurality of light-receiving elements disposed along each of the two sides which respectively oppose the first two sides, and a filter provided in a part or the whole area of the opening and adapted to transmit desired light alone. The opening of the frame is disposed in front of a display to form a plurality of optical paths by pairs of light-emitting and -receiving elements, respectively, in front of the display screen of the display, and a position at which optical paths are blocked is detected to specify a coordinate position on the display screen, thereby inputting the coordinate position. The coordinate input device is provided with a recess for blocking the propagation of light toward the light-receiving element side. The recess is disposed in a region within the filter section which is closer to at least the light-receiving element side than a position which is located on the downstream side in a direction in which the light emitted from the light-emitting elements travels and which position is at a mid point between the light-emitting and -receiving elements.

    摘要翻译: 光检测型坐标输入装置包括:具有形成在中心的大致矩形的开口的框架;发光元件阵列,其由沿框架的开口的两侧设置的多个发光元件构成, - 接收元件阵列,其由沿着分别与前两侧相对的两侧设置的多个光接收元件构成;以及滤光器,设置在所述开口的一部分或整个区域中,并且仅适用于传输期望的光。 框架的开口被布置在显示器的前面,以分别在显示器的显示屏前面的成对的发光和接收元件形成多个光路,并且光路是 检测到阻挡以在显示屏幕上指定坐标位置,由此输入坐标位置。 坐标输入装置设置有用于阻挡光朝向光接收元件侧的传播的凹部。 所述凹部设置在所述过滤器部分内的比从所述发光元件发射的光行进的方向上位于下游侧的位置更靠近所述受光元件侧的区域中,以及哪个 位置处于发光元件和接收元件之间的中点。

    Optical coordinate position input device
    8.
    发明授权
    Optical coordinate position input device 失效
    光学坐标位置输入装置

    公开(公告)号:US4742221A

    公开(公告)日:1988-05-03

    申请号:US864703

    申请日:1986-05-19

    CPC分类号: G06F3/0421 H05K3/301

    摘要: An optical coordinate input device comprises a number of light emitting elements and corresponding light detecting elements disposed in a plurality of linear arrays. A light ray selection member is provided such that only the light rays from the light emitting elements are detected by the light detecting elements. The light ray selection member is an optical semiconductor element light obstructing holder. The optical semiconductor elements have terminals projecting from the bottom surface of their main body which are fixed to a base and have a light emitting function or light detection function. In addition to these, a pair of mold bodies extending in the array direction of the optical semiconductor elements is combined, and this array of elements can be integrally fitted therein while being provided with a pressure portion elestically contacting the bottom surface of the main body of each element.

    摘要翻译: 光学坐标输入装置包括多个发光元件和布置在多个线性阵列中的对应的光检测元件。 设置光线选择构件,使得只有来自发光元件的光被光检测元件检测。 光线选择部件是光半导体元件遮光保持器。 光半导体元件具有从其主体的底表面突出的端子,其固定到基座并具有发光功能或光检测功能。 除此之外,组合了沿着光半导体元件的排列方向延伸的一对模具体,并且该元件阵列可以整体地装配在其中,同时设置有与主体的底面接触的压力部分 每个元素

    Filter of photoelectric touch panel with integral spherical protrusion
lens
    9.
    发明授权
    Filter of photoelectric touch panel with integral spherical protrusion lens 失效
    具有整体球面突起透镜的光电触摸屏过滤器

    公开(公告)号:US4737631A

    公开(公告)日:1988-04-12

    申请号:US864709

    申请日:1986-05-19

    CPC分类号: H03K17/943

    摘要: A filter of a photoelectric touch panel which is disposed on the front of an array mounted with light emitting elements and/or light receiving elements and disposed around a faceplate in the form of a frame, and characterized in that converging sections are formed on the filter at least at positions corresponding to the individual elements, thereby eliminating preparation of converging lenses.

    摘要翻译: 一种光电触摸面板的过滤器,其设置在安装有发光元件和/或光接收元件的阵列的前面,并且以框架的形式设置在面板周围,并且其特征在于,在所述滤光器上形成会聚部分 至少在与各个元件相对应的位置,从而消除会聚透镜的准备。