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1. 发明授权

US5682431A FM stereo broadcasting apparatus and method 失效
标题翻译： FM立体声广播设备及方法
公开(公告)号：US5682431A
公开(公告)日：1997-10-28
申请号：US353981
申请日：1994-12-06
申请人： Makoto Ohnishi , Masaaki Ohta , Ikuzi Fuzitani , Toshiaki Nario , Kazuhisa Hayeiwa , Yoshihiko Nasu
发明人： Makoto Ohnishi , Masaaki Ohta , Ikuzi Fuzitani , Toshiaki Nario , Kazuhisa Hayeiwa , Yoshihiko Nasu
IPC分类号： H04B1/04 , H04H1/00 , H04H20/48 , H04H5/00
CPC分类号： H04H20/48 , H04B1/04
摘要： The FM stereo broadcasting apparatus has a sampling frequency converter for receiving a digital input signal having an L (left audio)-signal and an R (right audio)-signal and for converting the digital input signal so that its sampling frequency is equal to either a frequency of a subcarrier of a composite audio signal or a first sampling frequency of a first sampling signal for the operation of a composite audio signal generator, a sampling signal generator for generating the first sampling signal for the operation of the composite audio signal generator having the first sampling frequency which is equal to 2.sup.N times (N is an integer of 1 or above) as high as the frequency of the subcarrier, a composite audio signal generator which is operated by the first sampling signal and which generates the composite audio signal on the basis of a pilot signal and the L-signal and R-signal of the input signal from the first frequency converter, and a frequency modulator for modulating the frequency of a carrier signal by the composite audio signal from the composite audio signal generator so as to produce a frequency-modulated signal.
摘要翻译： FM立体声广播装置具有采样频率转换器，用于接收具有L（左音频）信号和R（右音频）信号的数字输入信号，并用于转换数字输入信号，使得其采样频率等于复合音频信号的副载波的频率或用于复合音频信号发生器的操作的第一采样信号的第一采样频率的频率;采样信号发生器，用于产生用于复合音频信号发生器的操作的第一采样信号，第一采样频率等于子载波频率的2N倍（N是1或更大的整数），由第一采样信号操作并且产生复合音频信号的复合音频信号发生器导频信号的基础和来自第一频率转换器的输入信号的L信号和R信号，以及用于调制频率的频率调制器通过来自复合音频信号发生器的复合音频信号来产生载波信号，以产生调频信号。

2. 发明授权

US4945317A Matching circuit 失效
标题翻译：匹配电路
公开(公告)号：US4945317A
公开(公告)日：1990-07-31
申请号：US246780
申请日：1988-09-20
申请人： Tutomu Sato , Haruhiko Yura , Yoshihiko Nasu , Atsumi Fujiwara , Shigeo Mori
发明人： Tutomu Sato , Haruhiko Yura , Yoshihiko Nasu , Atsumi Fujiwara , Shigeo Mori
IPC分类号： H03H7/38 , H03H7/42
CPC分类号： H03H7/38 , H03H7/42
摘要： A matching circuit is connected between a source circuit and a load circuit. The matching circuit is made up of an impedance transforming circuit and a balance-to-unbalance signal-transforming circuit. If necessary, means for blocking the DC components intervene between those transforming circuits. The impedance transforming circuit is made up of inductive and capacitive elements. The matching circuit is reversible.
摘要翻译：匹配电路连接在源电路和负载电路之间。匹配电路由阻抗变换电路和平衡不平衡信号变换电路组成。如果需要，用于阻断直流分量在这些转换电路之间进行干预的装置。阻抗变换电路由电感和电容元件组成。匹配电路是可逆的。

3. 发明申请

US20100001817A1 LEAKY COAXIAL CABLE 有权
标题翻译：漏电线
公开(公告)号：US20100001817A1
公开(公告)日：2010-01-07
申请号：US12514260
申请日：2007-12-28
申请人： Fumio Suzuki , Kazuhiko Takano , Nobunao Ishii , Junji Kumada , Yasuki Ozaki , Yoshihiko Nasu , Kazuhisa Satou
发明人： Fumio Suzuki , Kazuhiko Takano , Nobunao Ishii , Junji Kumada , Yasuki Ozaki , Yoshihiko Nasu , Kazuhisa Satou
IPC分类号： H01P3/06
CPC分类号： H01Q13/203 , H01Q1/3225
摘要： Provided is a leaky coaxial cable in which a plurality of slots 1 for forming a leak electromagnetic field are arranged in a string shape in an outer conductor of the coaxial cable. The pitch interval of the slots 1 is periodically changed in the axial direction. The periodical change of the pitch interval of a slot portion changes according to a sinusoidal function, a quadratic function, or other functions.
摘要翻译：提供了一种泄漏的同轴电缆，其中用于形成泄漏电磁场的多个槽1以串形布置在同轴电缆的外导体中。槽1的间距间隔沿轴向周期性地变化。槽部的音调间隔的周期性变化根据正弦函数，二次函数或其他函数而变化。

4. 发明授权

US08378764B2 Leaky coaxial cable 有权
标题翻译：泄漏同轴电缆
公开(公告)号：US08378764B2
公开(公告)日：2013-02-19
申请号：US12514260
申请日：2007-12-28
申请人： Fumio Suzuki , Kazuhiko Takano , Nobunao Ishii , Junjii Kumada , Yasuki Ozaki , Yoshihiko Nasu , Kazuhisa Satou
发明人： Fumio Suzuki , Kazuhiko Takano , Nobunao Ishii , Junjii Kumada , Yasuki Ozaki , Yoshihiko Nasu , Kazuhisa Satou
IPC分类号： H01Q13/20
CPC分类号： H01Q13/203 , H01Q1/3225
摘要： Provided is a leaky coaxial cable in which a plurality of slots 1 for forming a leak electromagnetic field are arranged in a string shape in an outer conductor of the coaxial cable. The pitch interval of the slots 1 is periodically changed in the axial direction. The periodical change of the pitch interval of a slot portion changes according to a sinusoidal function, a quadratic function, or other functions.
摘要翻译：提供了一种泄漏的同轴电缆，其中用于形成泄漏电磁场的多个槽1以串形布置在同轴电缆的外导体中。槽1的间距间隔沿轴向周期性地变化。槽部的音调间隔的周期性变化根据正弦函数，二次函数或其他函数而变化。

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