利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

63 条记录 (耗时 0.032 秒)

    VORRICHTUNG UND VERFAHREN ZUM ERMITTELN EINER STELLE IN EINEM FILM, DER IN EINER ZEITLICHEN FOLGE AUFGEBRACHTE FILMINFORMATIONEN AUFWEIST
    5.
    发明公开
    VORRICHTUNG UND VERFAHREN ZUM ERMITTELN EINER STELLE IN EINEM FILM, DER IN EINER ZEITLICHEN FOLGE AUFGEBRACHTE FILMINFORMATIONEN AUFWEIST 审中-公开
    判断点的膜，在时间的装置和方法后果提请电影信息HAVING

    公开(公告)号：EP1894199A1

    公开(公告)日：2008-03-05

    申请号：EP06754259.7

    申请日：2006-06-09

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

    发明人： SPORER, Thomas ,  BECKINGER, Michael

    IPC分类号： G11B27/10 ,  G03B31/04

    CPC分类号： G03B31/04 ,  G11B27/10

    摘要： Disclosed is a device for determining a point in a film (110) comprising film data (112, 114) applied in chronological order. Said device encompasses a memory (320) for storing a reference fingerprint representation of the film data (112, 114). The fingerprint representation is configured such that a history of the fingerprint representation depends on a history of the film data while a time scale is assigned to a stored reference fingerprint representation. The inventive device further encompasses an apparatus (340) for receiving a section read by the film (110), an apparatus (350) for extracting a test fingerprint representation from the read section, and an apparatus (360) for comparing the test fingerprint representation to the reference fingerprint representation in order to determine the point in the film (110) based on the comparison and the time scale.

    VORRICHTUNG UND VERFAHREN ZUM BERECHNEN EINES DISKRETEN WERTS EINER KOMPONENTE IN EINEM LAUTSPRECHERSIGNAL
    7.
    发明公开
    VORRICHTUNG UND VERFAHREN ZUM BERECHNEN EINES DISKRETEN WERTS EINER KOMPONENTE IN EINEM LAUTSPRECHERSIGNAL 有权
    装置和方法用于计算组件的离散值在信号SPEAKER

    公开(公告)号：EP1606975A2

    公开(公告)日：2005-12-21

    申请号：EP04732100.5

    申请日：2004-05-11

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

    发明人： RÖDER, Thomas ,  SPORER, Thomas ,  BRIX, Sandra

    IPC分类号： H04S1/00

    CPC分类号： H04S7/30 ,  H04S3/002 ,  H04S2420/13

    摘要： The aim of the invention is to reduce Doppler artifacts in wave field synthesis due to delay changes from a first point in time to a second point in time. For this purpose, the delay for the first point in time and then the delay for the second point in time is determined (10). A value of an audio signal delayed by the first delay for the actual point in time and a value for the audio signal delayed by the second delay for the actual point in time is determined (14). The first value is weighted with a first weighting coefficient and the mean is taken from the second value by means of a second weighting coefficient (22). The two weighted values are added up (26) in order to obtain a discrete value for the actual point in time of the component in a loudspeaker signal for a loudspeaker due to a virtual source. In this manner, a fade-over from one delay to a subsequent delay can be achieved when a delay present at a later point in time is known, thereby reducing undesired Doppler artifacts.

    VORRICHTUNG UND VERFAHREN ZUM BESTIMMEN EINER IMPULSANTWORT UND VORRICHTUNG UND VERFAHREN ZUM VORFUEHREN EINES AUDIOSTUECKS
    8.
    发明授权
    VORRICHTUNG UND VERFAHREN ZUM BESTIMMEN EINER IMPULSANTWORT UND VORRICHTUNG UND VERFAHREN ZUM VORFUEHREN EINES AUDIOSTUECKS 有权
    VORRICHTUNG UND VERFAHREN ZUM BESTIMMEN EINER IMPULSANTWORT UND VORRICHUNG UND VERFAHREN ZUM VORFUEHREN EINES AUDIOSTUECKS

    公开(公告)号：EP1514450B1

    公开(公告)日：2005-12-07

    申请号：EP03775317.5

    申请日：2003-11-06

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

    发明人： SPORER, Thomas ,  NEUBAUER, Christian

    IPC分类号： H04S7/00

    CPC分类号： H04S7/30 ,  H04R29/007 ,  H04S2420/13

    摘要： The invention relates to a device, which is provided for determining a pulse response in an environment, inside of which a loudspeaker (10) and a microphone (12) are placed, and which operates while using an audio signal. A device (20) for effecting the spectral coloring of a test signal, which is preferably a pseudo noise signal, operates while using a psychoacoustic masking threshold of the audio signal in order to obtain a colored test signal that is embedded in the audio signal in order to obtain a measurement signal that can be fed to the loudspeaker (10). A device (30, 32) for determining the pulse response preferably carries out a cross-correlation of a reaction signal, which is received from the environment via the microphone, and of the test signal or of the colored test signal. This enables a pulse response of an environment to be determined even while playing an audio piece in order to provide an optimal description of the environment for a wavefield synthesis.

    摘要翻译： 本发明涉及一种设备，其用于确定扬声器（10）和麦克风（12）放置在其内部并且在使用音频信号的同时操作的环境中的脉冲响应。 用于实现测试信号（其优选为伪噪声信号）的光谱着色的设备（20）在使用音频信号的心理声学掩蔽阈值的同时操作，以便获得嵌入在音频信号中的彩色测试信号， 以获得可以馈送到扬声器（10）的测量信号。 用于确定脉冲响应的设备（30,32）优选地执行经由麦克风从环境接收的反应信号与测试信号或彩色测试信号的互相关。 这使得即使在播放音频片段时也能够确定环境的脉冲响应，以便为波场合成提供最佳环境描述。