
基本信息:
- 专利标题: Compact bar code scanning arrangement
- 专利标题(中):Kompakte Strichkode-Abtastanordnung
- 申请号:EP97202999.5 申请日:1992-11-04
- 公开(公告)号:EP0827102A2 公开(公告)日:1998-03-04
- 发明人: Bard, Simon , Swartz, Jerome , Metlitsky, Boris , Stratienco, Askold , Krichever, Mark , Katz, Joseph
- 申请人: SYMBOL TECHNOLOGIES, INC.
- 申请人地址: One Symbol Plaza Holtsville, New York 11742-1300 US
- 专利权人: SYMBOL TECHNOLOGIES, INC.
- 当前专利权人: SYMBOL TECHNOLOGIES, INC.
- 当前专利权人地址: One Symbol Plaza Holtsville, New York 11742-1300 US
- 代理机构: Maggs, Michael Norman
- 优先权: US787458 19911104; US884734 19920519
- 主分类号: G06K7/10
- IPC分类号: G06K7/10
摘要:
Several different embodiments are disclosed of a simple, compact or miniature bar code scanner which is capable of scanning in any one of several modes. In a preferred embodiment, the compact bar code scanner is used in a small housing mounted on an index finger of an operator such that the natural pointing direction of the index finger aims the scanner. In one embodiment, a high frequency flexural member, with a scanning mirror and permanent magnet mounted thereon, is supported by a low frequency flexural member. An x drive coil is positioned by the permanent magnet, and with an applied high frequency x drive signal, causes the high frequency flexural member, with the permanent magnet means and scanning mirror mounted thereon, to torsionally oscillate at the frequency of the x drive signal. A y drive coil is also positioned by the permanent magnet, and with an applied low frequency y drive signal, causes the low frequency flexural member to oscillate to cause low frequency y scanning of the scanning mirror, thereby resulting in a raster scan pattern. With an applied high frequency y drive signal, the y coil causes the high frequency flexural member to oscillate at a high frequency to cause high frequency y scanning of the mirror, thereby resulting in an omnidirectional scan pattern. In several disclosed embodiments, the present invention provides a mirrorless beam scanning unit mounted in a finger size ring wherein a light emitter such as a visible light diode is moved back and forth.
摘要(中):
公开了能够以多种模式中的任何一种扫描的简单,紧凑或微型条形码扫描器的若干不同实施例。 在优选实施例中,紧凑型条形码扫描器用于安装在操作者的食指上的小外壳中,使得食指的自然指向方向瞄准扫描器。 在一个实施例中,安装有扫描镜和永磁体的高频弯曲构件由低频弯曲构件支撑。 x驱动线圈由永磁体定位,并且施加的高频x驱动信号使得安装有永磁体装置和扫描反射镜的高频弯曲构件以x驱动信号的频率扭转振荡 。 y驱动线圈也由永磁体定位,并且施加的低频y驱动信号使低频弯曲构件振荡以引起扫描反射镜的低频y扫描,从而导致光栅扫描图案。 利用施加的高频y驱动信号,y线圈使高频弯曲构件以高频率振荡,从而对反射镜进行高频y扫描,从而产生全向扫描图案。 在几个公开的实施例中,本发明提供一种安装在手指尺寸环中的无反射镜束扫描单元,其中诸如可见光二极管的光发射器来回移动。
公开/授权文献:
- EP0827102B1 Compact bar code scanning arrangement 公开/授权日:2003-07-09
IPC结构图谱:
G | 物理 |
--G06 | 计算;推算;计数 |
----G06K | 数据识别;数据表示;记录载体;记录载体的处理 |
------G06K7/00 | 读出记录载体的方法或装置 |
--------G06K7/10 | .采用电磁辐射的,例如,光学读出;应用微粒子辐射 |