Identification and analysis of materials and molecular structures

    公开(公告)号:US09599565B1

    公开(公告)日:2017-03-21

    申请号:US14044773

    申请日:2013-10-02

    IPC分类号: G01J3/44 G01N21/65

    摘要: Provided are methods and systems for identification and analysis of materials and molecular structures. An apparatus for identification and analysis of materials and molecular structures may include a laser. The laser may, in turn, include an amplified spontaneous emission-suppressed single-frequency laser excitation source. The apparatus may further comprise a plurality of filters. The plurality of filters may include reflective volume holographic grating blocking filters. The apparatus may also comprise an optical unit and an optical spectrometer. The optical unit may be configured to deliver excitation energy to a sample substance and capture Raman signal scattering from the sample substance. The optical spectrometer may be disposed in a path of the Raman signal and configured to measure a spectrum of the Raman signal and generate a detection signal. Finally, the apparatus may comprise a processing unit configured to analyze the spectrum.

    Surround sound system for personal computer for interfacing surround
sound with personal computer
    4.
    发明授权
    Surround sound system for personal computer for interfacing surround sound with personal computer 失效
    用于个人计算机的环绕声系统,用于与个人计算机连接环绕声

    公开(公告)号:US5841993A

    公开(公告)日:1998-11-24

    申请号:US582114

    申请日:1996-01-02

    申请人: Lawrence Ho

    发明人: Lawrence Ho

    IPC分类号: H04S3/00 G11B20/02

    CPC分类号: H04S3/00

    摘要: A surround sound system for personal computer includes a control card and a PC surround decoder. The control card is a PC interface card for interfacing to the personal computer and draining the 5 VDC and .+-.12 VDC power from the personal computer as power source for both the control card and the PC surround decoder to operate. The PC surround decoder for processing the stereo source signal and generating left, center, right, surround and subwoofer signals. A connecting means electrically connects the PC surround decoder to the control card. The PC surround sound system is specified for incorporating with personal computer which enables the users to command the PC surround sound system with their computer keyboard or mouse and receive the full benefit of Dolby Surround encoded multimedia software and the like.

    摘要翻译: 用于个人计算机的环绕声系统包括控制卡和PC环绕解码器。 控制卡是用于与个人计算机连接的PC接口卡,并将个人计算机的5 VDC和+/- 12 VDC电源作为控制卡和PC环绕声解码器的电源进行操作。 用于处理立体声源信号并产生左,中,右,环绕和低音炮信号的PC环绕声解码器。 连接装置将PC环绕解码器电连接到控制卡。 PC环绕声系统被指定用于与个人计算机结合,使得用户能够利用其计算机键盘或鼠标来命令PC环绕声系统,并且获得杜比环绕编码多媒体软件等的全部优点。