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    • 32. 发明授权
    • METHOD AND APPARATUS FOR MAKING PLASTIC FILM
    • VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON KUNSTSTOFFFOLIE
    • EP1216137B9
    • 2004-11-03
    • EP00958563.9
    • 2000-09-08
    • CONENOR OY
    • KIRJAVAINEN, Kari
    • B29C47/14B29C47/90B29C55/02
    • B29C44/3453B29C44/20B29C55/005B29C55/143B29K2105/04
    • The invention relates to a method and an apparatus for making a plastic film, and to a plastic film. The invention comprises extruding a film (5) from plastic material (5a) by an extruder (1) and orientating the film after extrusion. Material is mixed into the plastic (5a) so that when the plastic film (5) is stretched, cavitation bubbles are formed in the material particles mixed into the plastic (5a). After orientation gas is arranged to act on the plastic film under high pressure so that the gas diffuses in the cavitation bubbles and causes overpressure in them. Thus it is possible to make a thin foamed film (5) with a foaming degree of over 70 %.
    • 一种用于制造塑料膜的方法和设备以及塑料膜,其中所述方法包括通过挤出机从塑料材料中挤出膜并在挤压后取向。 将材料混合到塑料中,使得当塑料膜被拉伸时,在混合到塑料中的材料颗粒中形成气泡。 定向后,气体被布置成在高压下作用在塑料膜上,使得气体在空化气泡中扩散并在其中引起超压。 因此,可以制造发泡度超过70%的薄发泡膜。
    • 34. 发明公开
    • ELECTROMECHANICAL TRANSDUCER AND METHOD FOR TRANSFORMING ENERGIES
    • EERKTROMECHANISCHER WANDLER UND VERFAHREN ZUM TRANSFORMIEREN VON ENERGIEN
    • EP1384388A1
    • 2004-01-28
    • EP02714241.3
    • 2002-04-10
    • Panphonics Oy
    • KIRJAVAINEN, Kari
    • H04R19/00
    • B06B1/0618B06B1/0261B06B1/0292G10K9/12
    • A electromechanical transducer comprising at least one transducer element (2, 2a) which has a multilayer structure comprising at least two layers such that the transducer element is capable of changing its thickness. The transducer element (2a, 2b) allows air to flow inside the transducer element (2, 2a, 2b) in the direction of thickness thereof and inside and out of the transducer element (2a, 2b) through at least one surface of the transducer element (2a, 2b) in the direction of thickness of the transducer element (2a, 2b). The transducer element can be used e.g. for transforming energy from mechanical energy into electric energy and/or vice versa.
    • 一种机电换能器,包括至少一个换能器元件,该元件具有包括至少两层的多层结构,使得换能器元件能够改变其厚度。 换能器元件允许空气在换能器元件的厚度方向上流过换能器元件的内部和外部,通过换能器元件的至少一个表面沿换能器元件的厚度方向。 换能器元件可以例如使用。 用于将能量从机械能转换成电能和/或反之亦然。
    • 38. 发明公开
    • Teleconferencing Bridge with comb filtering for spatial sound image
    • 电信公司Klangbild
    • EP1324582A1
    • 2003-07-02
    • EP02102759.4
    • 2002-12-16
    • Nokia Corporation
    • Virolainen, Jussi
    • H04M3/56H04B3/21
    • H04M3/568H04M3/56H04M2203/5072
    • A method of controlling a conference call in a system which comprises a conference bridge for combining several audio signals arriving from terminals and transmitting the combined signal further to at least one of the terminals. The method comprises detecting substantially simultaneously active predetermined audio signals, such as speech signals, in the audio signals of the conference bridge inputs and filtering the audio signals of the inputs with substantially different filters when there is more than one simultaneously active predetermined audio signal. The filtered audio signals are combined into one signal, and the combined signal is transmitted to at least one terminal.
    • 一种在系统中控制电话会议的方法,该系统包括会议桥,用于组合从终端到达的几个音频信号,并将组合信号进一步传输到至少一个终端。 该方法包括在会议电桥输入的音频信号中基本上同时检测激活的预定音频信号(例如语音信号),并且当存在多于一个的同时有效的预定音频信号时,以基本上不同的滤波器对输入的音频信号进行滤波。 被滤波的音频信号被组合成一个信号,并且组合的信号被发送到至少一个终端。