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11. 发明授权

US5926334A Noise reduction system for an audio system 失效
标题翻译：音频系统降噪系统
公开(公告)号：US5926334A
公开(公告)日：1999-07-20
申请号：US851278
申请日：1997-05-05
申请人： Shirou Suzuki
发明人： Shirou Suzuki
IPC分类号： G11B5/027 , G11B5/008 , G11B5/035 , G11B20/04 , G11B5/02
CPC分类号： G11B5/035 , H03G9/025 , G11B5/00813
摘要： An input signal from an audio system is divided into a plurality of frequency bands, and the signal in each frequency band is attenuated by an attenuator. The output signals of the attenuators are added. A level of the signal in each frequency band is detected by a level detector. A memory is provided for feeding an attenuation dependent on a level detected by the level detector. A controller is provided for controlling a signal attenuation of the attenuator by an attenuation fed from the memory in accordance with a detected level.
摘要翻译：来自音频系统的输入信号被分成多个频带，并且每个频带中的信号被衰减器衰减。增加衰减器的输出信号。每个频带中的信号电平由电平检测器检测。提供存储器用于馈送取决于由电平检测器检测到的电平的衰减。提供控制器，用于根据检测到的电平，通过从存储器馈送的衰减来控制衰减器的信号衰减。

12. 发明授权

US5583709A Method and apparatus for automatically selecting a noise reduction circuitry in playback mode 失效
标题翻译：在播放模式下自动选择降噪电路的方法和装置
公开(公告)号：US5583709A
公开(公告)日：1996-12-10
申请号：US286175
申请日：1994-08-05
申请人： Satoru Kodaira , Shirou Suzuki , Yoshinori Takei
发明人： Satoru Kodaira , Shirou Suzuki , Yoshinori Takei
IPC分类号： G11B20/04 , G11B5/027 , G11B20/24 , G11B5/02
CPC分类号： G11B20/24
摘要： Method and apparatus automatically select, in a playback mode, a noise reduction circuitry of a noise reduction system by which a middle-to-high frequency signal of a low level included in a recording signal is compressed in dynamic range for recording and the compressed middle-to-high frequency signal is expanded in dynamic range in the playback mode, thereby suppressing middle to high frequency noises in the reproduction signal. A level difference .DELTA.L between the maximum and minimum signals of the low frequency component in the reproduction signal and a level difference .DELTA.H between the maximum and minimum signals of the middle-to-high frequency component in the reproduction signal are obtained. While comparing the magnitudes of the two level differences obtained, the selection of an appropriate noise reduction circuitry is performed so that the two level differences are made almost equal to each other.
摘要翻译：方法和装置在回放模式中自动选择降噪系统的降噪电路，通过该噪声降低系统，包含在记录信号中的低电平的中高频信号在用于记录的动态范围内被压缩，并且压缩中在重放模式下，在动态范围内扩大到高频信号，从而抑制再现信号中的中高频噪声。获得再现信号中的低频分量的最大和最小信号之间的电平差DELTA L以及再现信号中的中高频分量的最大和最小信号之间的电平差DELTA H。在比较所获得的两个电平差的大小时，执行适当的降噪电路的选择，使得两个电平差几乎彼此相等。

13. 发明授权

US4076604A Process for the electrolytic treatment of alkali halide 失效
标题翻译：碱卤化物电解处理方法
公开(公告)号：US4076604A
公开(公告)日：1978-02-28
申请号：US732095
申请日：1976-10-13
申请人： Naohiro Murayama , Kenichi Nakamura , Makoto Fukuda , Teruo Sakagami , Shirou Suzuki
发明人： Naohiro Murayama , Kenichi Nakamura , Makoto Fukuda , Teruo Sakagami , Shirou Suzuki
IPC分类号： C25B1/46 , C25B1/16 , C25B1/26
CPC分类号： C25B1/46
摘要： In an electrolytic treatment of alkali halide for the manufacture of alkali hydroxide, a three-chamber type reaction vessel assembly is used so as to provide an anodic chamber, an intermediate chamber and a cathodic chamber arranged in succession one after another and mutually separated by means of anodic (i.e., cationic selective) ion exchange membranes. From the intermediate chamber, low concentration caustic alkali solution is obtained, while from the cathodic chamber, high concentration caustic alkali solution is obtained. In this electrolytic process, the system is operated with the cathodic chamber supplied with no water or aqueous content. The high concentration caustic alkali solution is made from water and alkali metal ions conveyed from the intermediate chamber to the cathodic chamber and exclusively and osmotically passed through the anodic ion exchange membrane. The polymers or copolymers of the anodic ion exhange membrane include sulfonic acid, carboxylic acid and/or phenolic radicals. As the method for the introduction of these radicals, formation of corresponding copolymers may be utilized in the most recommended way. As an example, the membrane may comprise a fluorinated polymer having a cyclic ring structure unit and pendant type sulfonic acid radicals.
摘要翻译：在用于制造碱金属氢氧化物的碱金属卤化物的电解处理中，使用三室式反应容器组件，以便提供一个接一个地连续排列并相互分离的阳极室，中间室和阴极室的阳极（即阳离子选择性）离子交换膜。从中间室获得低浓度苛性碱溶液，而从阴极室获得高浓度苛性碱溶液。在这种电解过程中，系统在没有水或含水量的阴极室运行。高浓度苛性碱溶液由从中间室输送到阴极室的水和碱金属离子制成，并且渗透通过阳极离子交换膜。阳离子离子膜的聚合物或共聚物包括磺酸，羧酸和/或酚基。作为引入这些基团的方法，可以以最推荐的方式使用相应的共聚物的形成。作为示例，膜可以包含具有环状结构单元和侧链型磺酸基团的氟化聚合物。

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