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    • 3. 发明授权
    • Postfiltering audio signals especially speech signals
    • 后置滤波音频信号,特别是语音信号
    • US6058360A
    • 2000-05-02
    • US953919
    • 1997-10-20
    • Rolf Anders Bergstrom
    • Rolf Anders Bergstrom
    • G10L19/26G10L25/12H03H17/02G10L9/14
    • G10L19/26G10L25/12
    • A short-delay postfilter (13) for postfiltering an encoded or decoded audio signal, specifically a speech signal, the short-delay postfilter having a transfer function F(z) of the form F(z)=D(z)/E(z), where E(z) and (D(z) are polynomials dependent on the variable z, where z is the inverse of the unit delay operator z.sup.-1 used in the z transform representation of transfer functions and wherein the denominator E(z) of the transfer functions H(z) of the audio signal's corresponding production filter (12) is also derived and the numerator D(z) differs from the denominator E(z) and is derived by using a longer period than used for the denominator E(z).
    • 一种短延迟后置滤波器(13),用于后置滤波编码或解码的音频信号,特别是语音信号,具有形式F(z)= D(z)/ E(...)的传递函数F(z)的短延迟后滤波器 z),其中E(z)和(D(z))是取决于变量z的多项式,其中z是在传递函数的z变换表示中使用的单位延迟算子z-1的倒数,并且其中分母E( 也导出了音频信号的相应生成滤波器(12)的传递函数H(z)的z(z),分子D(z)与分母E(z)不同,并且通过使用比用于 分母E(z)。
    • 5. 发明授权
    • Device for braking articles to be conveyed on a conveyer and braking
rubber tubes therefor
    • 用于制动在输送机上传送的物品并制动橡胶管的装置
    • US4796746A
    • 1989-01-10
    • US119645
    • 1987-11-12
    • Anders BergstromGosta Sevrell
    • Anders BergstromGosta Sevrell
    • B65B57/02B65B43/52B65G47/88B65G47/29
    • B65G47/8861B65G47/8869B65G2205/04
    • A device for braking advancing packages being transferred on a conveyer including a pair of rubber tubes of a predetermined length having flat surfaces, the tubes being inflated toward the packages being conveyed so that the tubes interpose and stop the packages. The pair of rubber tubes can be inflated so that they expand in an upwardly inclined direction in order to slightly lift the packages above the conveyer surface. Each of the rubber tubes are provided along the conveyer and are inflated with air. In addition each rubber tube has a flat braking surface, a reinforcing part at the back of the braking surface for maintaining the flatness of the braking surface, attaching wall part and a hollow section between the braking surface and the attaching wall part so that the rubber tube is normally small and narrow, but can be enlarged when inflated with air.
    • 一种用于制动前进包装的装置,其被传送到包括具有平坦表面的预定长度的一对橡胶管的输送机上,所述管朝向包装被充气以使得管插入并停止包装。 这对橡胶管可以被充气,使得它们在向上倾斜的方向上膨胀,以便轻轻地提升传送带表面上方的包装。 每个橡胶管沿着输送机设置,并用空气充气。 此外,每个橡胶管具有平坦的制动表面,在制动表面的后面的加强部分,用于保持制动表面的平坦度,附接壁部分和中空部分在制动表面和附接壁部分之间,使得橡胶 管通常小而窄,但是当用空气充气时可以扩大。