发明名称 |
COMPACT BAR CODE SCANNING ARRANGEMENT |
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.
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申请公布号 |
CA2080784(A1) |
申请公布日期 |
1993.05.05 |
申请号 |
CA19922080784 |
申请日期 |
1992.10.16 |
申请人 |
BARD, SIMON;METLITSKY, BORIS;KRICHEVER, MARK;SWARTZ, JEROME;STRATIENCO, ASKOLD;KATZ, JOSEPH |
发明人 |
BARD, SIMON;METLITSKY, BORIS;KRICHEVER, MARK;SWARTZ, JEROME;STRATIENCO, ASKOLD;KATZ, JOSEPH |
分类号 |
G06F1/16;G06F3/033;G06K7/10;(IPC1-7):G06K9/18;G06K9/22 |
主分类号 |
G06F1/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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