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公开(公告)号：EP3197952A1
公开(公告)日：2017-08-02
申请号：EP15781977.2
申请日：2015-09-14
CPC分类号： C08J11/08 , C08J2300/16 , C08J2329/04 , C08K5/053 , C08L2205/025 , C08L2207/20 , Y02W30/701 , C08L29/04
摘要： A biodegradable material capable of recovery and recycling by dissolution in water at a temperature 40° C. or higher, the material being insoluble in water at 25° C.; wherein the material comprises one or both of: virgin or scrap polyvinyl alcohol material resultant from manufacture of an article composed of polyvinyl alcohol, the material having a degree of hydrolysis of at least 98 mol %, or a waste stream containing polyvinyl alcohol material having a degree of hydrolysis of at least 98 mol %.
摘要翻译： 可生物降解的聚乙烯醇材料，其水解度至少为98mol％，包含废弃物流中的原始或废料或聚乙烯醇，能够通过在40℃或更高的温度下溶解于水中进行回收和再循环。 该材料是来自制造聚乙烯醇材料的颗粒或薄膜的废旧材料或废料。 聚乙烯醇材料可以包含增塑剂，例如甘油。 聚乙烯醇在25℃下不溶于水。 还公开了使用沉淀剂如乙醇或丙酮回收聚乙烯醇的方法以及使用回收的聚乙烯醇制造载体袋的方法。
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3.发明授权AUDIO CHANNEL STACKING WITH SPEECH COMPRESSION FOR NARROW BAND TRANSMISSION WITH PROVISION FOR DIALED CALLS 失效用于窄带传输的语音信道的音频信道堆叠，用于拨号呼叫
公开(公告)号：EP0155285B1
公开(公告)日：1991-12-27
申请号：EP84903251.1
申请日：1984-08-14
发明人： WONG, Stephen
IPC分类号： H04J1/08
摘要： An analog signal stacking method and apparatus permits transmission of an analog signals of given spectrum width over a narrow band communication circuit (13) having bandwidth approximately equal to the spectrum width of one analog signal by compressing the spectrum of each signal by a factor of 1/n and frequency offsetting the compressed signals to occupy contiguous frequency bands within the bandwidth of the circuit. Received signals are processed to remove the frequency offset and expand the baseband signals to restore each analog signal to its normal spectrum. A dial through circuit (Figs. 6A and 6B) permits application of the stacking feature to place two conventional dialed calls on a single line (73, 74) of the telephone network using a circuit for processing both dial and voice signals.
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4.发明公开AUDIO CHANNEL STACKING WITH SPEECH COMPRESSION FOR NARROW BAND TRANSMISSION WITH PROVISION FOR DIALED CALLS. 失效TONFREQUENZKANALSCHICHTUNG语音压缩窄带传输要选择的呼叫。
公开(公告)号：EP0155285A4
公开(公告)日：1988-05-10
申请号：EP84903251
申请日：1984-08-14
发明人： WONG STEPHEN
摘要： An analog signal stacking method and apparatus permits transmission of an analog signals of given spectrum width over a narrow band communication circuit (13) having bandwidth approximately equal to the spectrum width of one analog signal by compressing the spectrum of each signal by a factor of 1/n and frequency offsetting the compressed signals to occupy contiguous frequency bands within the bandwidth of the circuit. Received signals are processed to remove the frequency offset and expand the baseband signals to restore each analog signal to its normal spectrum. A dial through circuit (Figs. 6A and 6B) permits application of the stacking feature to place two conventional dialed calls on a single line (73, 74) of the telephone network using a circuit for processing both dial and voice signals.
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5.发明公开AUDIO CHANNEL STACKING WITH SPEECH COMPRESSION FOR NARROW BAND TRANSMISSION WITH PROVISION FOR DIALED CALLS 失效TONFREQUENZKANALSCHICHTUNG语音压缩窄带传输要选择的呼叫。
公开(公告)号：EP0155285A1
公开(公告)日：1985-09-25
申请号：EP84903251.0
申请日：1984-08-14
发明人： WONG, Stephen
摘要： Procédé et dispositif d'empilage de signaux analogiques, permettant la transmission de n signaux analogiques d'une largeur de spectre donnée au travers d'un circuit de communications à bande étroite (13), la largeur de bande étant approximativement égale à la largeur du spectre d'un signal analogique, en comprimant le spectre de chaque signal d'un facteur de 1/n et en décalant en fréquence les signaux comprimés pour qu'ils occupent des bandes de fréquence contiguës dans la largeur de bande du circuit. Les signaux reçus sont traités pour éliminer le décalage de fréquence et dilater les signaux de bande de base pour que chaque signal analogique retrove son spectre normal. Un circuit de composition d'appels (fig. 6A et 6B) permet d'appliquer ce procédé d'empilage pour placer deux appels conventionnels sur une seule ligne (73, 74) du réseau téléphonique en utilisant un circuit pouvant traiter aussi bien les signaux d'appel que les signaux vocaux.
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