Optoelectronic device including digital filters compensating for
component stipulated signal distortion in a recieved signal for
recognizing barcode symbols
    2.
    发明授权
    Optoelectronic device including digital filters compensating for component stipulated signal distortion in a recieved signal for recognizing barcode symbols 失效
    光电子器件包括数字滤波器,用于补偿用于识别条形码符号的接收信号中的分量规定的信号失真

    公开(公告)号:US5661288A

    公开(公告)日:1997-08-26

    申请号:US356232

    申请日:1995-07-05

    IPC分类号: G06K7/10 G06K7/00

    CPC分类号: G06K7/10851

    摘要: An optoelectronic apparatus is provided for identifying marks comprised of defined contrast patterns, particularly barcode symbols. The device includes a transmitting element which emits transmitted light and a receiving element. The transmitted light is guided across the marks, and the received light reflected by the marks has an amplitude modulation imposed by the contrast of the marks, with the received light being converted into a voltage signal that forms the received signal in the receiving element. The voltage signal is converted into a binary signal and filtered by an arrangement of digital filters for compensation component stipulated distortions prior to being fed to a threshold-value unit for evaluation of the contrast pattern.

    摘要翻译: PCT No.PCT / EP94 / 02826 Sec。 371日期:1995年7月5日 102(e)日期1995年7月5日PCT 1994年8月25日PCT公布。 WO95 / 12861 PCT出版物 日期1995年5月11日提供了用于识别由限定的对比度图案特别是条形码符号组成的标记的光电装置。 该装置包括发射透射光的发射元件和接收元件。 透射光被引导穿过标记,并且由标记反射的接收光具有由标记的对比度施加的幅度调制,接收的光被转换成在接收元件中形成接收信号的电压信号。 电压信号被转换成二进制信号,并且在被馈送到用于评估对比度图案的阈值单元之前通过用于补偿分量规定的失真的数字滤波器的布置进行滤波。

    Photovoltaic cell and method for its fabrication
    5.
    发明授权
    Photovoltaic cell and method for its fabrication 失效
    光伏电池及其制造方法

    公开(公告)号:US4707561A

    公开(公告)日:1987-11-17

    申请号:US894713

    申请日:1986-08-08

    摘要: In order to provide an uncomplicated and economical front surface contact for photovoltaic cells (10) with good current discharge capability and high radiation permeability, the front surface contact (20) is composed of several layer (22, 24, 26) which are essentially unaligned with respect each other. The layers (22, 24, 26) are composed of different materials, which guarantes good ohmic coupling to the light incident semiconductor layer, good collection of free charge carriers in the semiconductor layer, and good discharge of same to a load device.

    摘要翻译: 为了提供具有良好的电流放电能力和高的辐射透过率的光伏电池(10)的不复杂和经济的前表面接触,前表面接触件(20)由几层(22,24,26)组成,其基本上不对准 相互尊重 这些层(22,24,26)由不同的材料组成,这保证了与光入射半导体层的良好的欧姆耦合,在半导体层中良好的自由电荷载体的收集以及对负载装置的良好的放电。

    Contact system for thin film solar cells
    6.
    发明授权
    Contact system for thin film solar cells 失效
    薄膜太阳能电池接触系统

    公开(公告)号:US4612410A

    公开(公告)日:1986-09-16

    申请号:US665345

    申请日:1984-10-26

    摘要: A contact system for thin film solar cells, which guarantees that charge carrier transport without a barrier layer takes place from the semiconductor layer facing the light source to the front contact in such a manner that, among others, long term negative influences by the front contact on the semiconductor layer will not take place. To this end the front contact is rendered passive against the semiconductor layer by modifying its chemical potential, at least in the actual contact area, to be matched to the chemical potential of the semiconductor layer, or by forming a chemically inert system acting as a reaction barrier between the front contact and the semiconductor layer.

    摘要翻译: 一种用于薄膜太阳能电池的接触系统,其确保没有阻挡层的电荷载流子从面向光源的半导体层发生到前触点,使得除了其它之外,前端触点的长期负面影响 在半导体层上不会发生。 为此,通过改变其化学势,至少在实际的接触面积中,使前端接触被半导体层钝化,以与半导体层的化学势相配合,或通过形成作为反应的化学惰性体系 前接触和半导体层之间的阻挡层。

    Apparatus for concentrating salt-containing solutions with microwave
energy
    8.
    发明授权
    Apparatus for concentrating salt-containing solutions with microwave energy 失效
    用微波能量浓缩含盐溶液的装置

    公开(公告)号:US6080977A

    公开(公告)日:2000-06-27

    申请号:US38827

    申请日:1998-03-12

    CPC分类号: C01D5/00 B01D1/0017 B01D3/00

    摘要: An apparatus for concentrating and solidifying a salt solution includes a vessel for containing the salt solution having an exposed surface, the vessel having a generally open upper portion, a cover for sealing the generally open upper portion of the vessel and having a generally hood shaped portion, the cover including at least one inlet conduit for admitting the salt solution to the vessel and a discharge conduit for vapor, and a magnetron for generating microwaves for heating the solution in the vessel. A microwave waveguide is disposed between the magnetron and the vessel and incorporates the cover, for directing microwaves from the magnetron into the vessel, the waveguide transitioning within the cover from the generally hood shaped portion into a horn having a variable cross-section and/or variable vertical spacing with respect to the vessel. This structure enables microwaves to be radiated directly onto the exposed surface of the salt solution in the vessel.

    摘要翻译: 用于浓缩和固化盐溶液的装置包括用于容纳具有暴露表面的盐溶液的容器,所述容器具有大致敞开的上部,用于密封容器的大体上敞开的上部的盖,并且具有通常为罩形的部分 所述盖包括至少一个用于将盐溶液导入容器的入口导管和用于蒸气的排出管道,以及用于产生用于加热容器中的溶液的微波的磁控管。 微波波导设置在磁控管和容器之间并且包括盖子,用于将微波从磁控管引导到容器中,波导在盖子内从通常的罩形成部分转变成具有可变横截面的喇叭和/或 相对于容器可变的垂直间距。 这种结构使得微波能够直接辐射到容器中的盐溶液的暴露表面上。

    Optoelectric device for the recognition of contrast marks
    9.
    发明授权
    Optoelectric device for the recognition of contrast marks 失效
    用于识别对比度标记的光电装置

    公开(公告)号:US5675136A

    公开(公告)日:1997-10-07

    申请号:US556899

    申请日:1995-11-29

    IPC分类号: G06K7/10

    CPC分类号: G06K7/10851

    摘要: An optoelectronic device for recognizing marks provided with defined contrast patterns includes a transmitting element that transmits a light beam and a receiving element. The beam of transmitted light is guided across the marks, and the received beam of light reflected from a mark exhibits an amplitude modulation which is impressed by the contrast of the mark and is dependent on the spatial course of intensity of the transmitted light beam. The received light in the receiving element is converted into an analog received signal. The analog received signal is converted, in an n-bit analog/digital converter, into a digital received signal which is supplied to a digital filter whose transmission characteristic is essentially equivalent to the inverse of the frequency spectrum of the spatial distribution of intensity of the transmitted light beam at the location of the mark.

    摘要翻译: PCT No.PCT / EP95 / 00893 Sec。 371日期:1995年11月29日 102(e)日期1995年11月29日PCT 1994年3月30日PCT公布。 WO95 / 27257 PCT公开号 日期1995年10月12日用于识别具有限定对比度图案的标记的光电子器件包括透射光束和接收元件的发射元件。 透射光束被引导穿过标记,并且从标记反射的接收光束呈现由标记的对比度所抵消的幅度调制,并且取决于透射光束的强度的空间过程。 接收元件中的接收光转换为模拟接收信号。 模拟接收信号在n位模拟/数字转换器中被转换成数字接收信号,数字接收信号被提供给数字滤波器,该数字滤波器的传输特性基本上等于频率的空间分布的频谱的倒数 在标记位置的透射光束。

    Optoelectronic a device employing a digital filter which operates in
different coefficient sets
    10.
    发明授权
    Optoelectronic a device employing a digital filter which operates in different coefficient sets 失效
    光电子器件采用以不同系数组工作的数字滤波器

    公开(公告)号:US5777311A

    公开(公告)日:1998-07-07

    申请号:US564157

    申请日:1995-12-21

    IPC分类号: G06K7/10

    CPC分类号: G06K7/10851

    摘要: An optoelectronic device for identifying a mark having a defined contrast pattern includes a transmitting element for emitting a beam of transmitted light. A deflector unit periodically guides the transmitted light beam over the mark. A receiving element receives the transmitted light beam after being reflected by the mark and produces an analog received signal which exhibits an amplitude modulation impressed by the contrast pattern of the mark and is dependent on the spatial intensity distribution of the transmitted light beam. An n-bit analog-digital converter has a word width greater than 1 for converting the analog received signal into a digital received signal. A digital filter includes an input for receiving the digital received signal. The digital filter has different coefficient sets that are temporally changed, wherein the coefficients of each coefficient set are selected so that a transmission characteristic of the filter for each coefficient set essentially corresponds to an inverse of the frequency spectrum of the spatial intensity distribution of the transmitted light beam at a respectively different distance from the device.

    摘要翻译: PCT No.PCT / EP95 / 00992 Sec。 371 1995年12月21日第 102(e)日期1995年12月21日PCT 1995年3月16日PCT PCT。 第WO95 / 29457号公报 1995年11月2日,用于识别具有限定对比度图案的标记的光电子器件包括用于发射透射光束的发射元件。 偏转器单元周期性地将透射的光束引导到标记上。 接收元件在由标记反射后接收透射光束,并产生模拟接收信号,其呈现由标记的对比度图案照射的幅度调制,并且取决于透射光束的空间强度分布。 n位模数转换器的字宽大于1,用于将模拟接收信号转换为数字接收信号。 数字滤波器包括用于接收数字接收信号的输入端。 数字滤波器具有不同的时间变化的系数组,其中选择每个系数组的系数,使得每个系数组的滤波器的传输特性基本上对应于所传输的空间强度分布的频谱的倒数 光束与设备分开不同的距离。