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1. 发明授权

US4285045A Delay circuit 失效
标题翻译：延时电路
公开(公告)号：US4285045A
公开(公告)日：1981-08-18
申请号：US88824
申请日：1979-10-26
申请人： Michitoshi Tamori , Sotokichi Shintani , Hideo Kobayashi , Hidetaka Yanagidaira
发明人： Michitoshi Tamori , Sotokichi Shintani , Hideo Kobayashi , Hidetaka Yanagidaira
IPC分类号： H03H15/00 , H03H17/00 , H03H17/06 , H03H17/08 , H04B3/04 , H04L25/03 , H04L25/08 , H03H7/30
CPC分类号： H03H17/06 , H04L25/03133
摘要： A smear filter and/or a de-smear filter having the characteristics that the delay time is proportional to the frequency comprising (a) a transversal filter having a plurality of delay elements connected in series with one another, the delay time (T) of each delay element being the same as the sampling interval of the input signal, the first delay element being connected to the input terminal, a plurality of potentiometers each connected to the junction points of said delay elements and the output of the last delay element providing the tap weight to each of the tap output, and an adder for providing the sum of the outputs of said potentiometers to provide an output of the present delay circuit, (b) a digital memory storing the precalculated value for each desired delay characteristics for providing the tap weights of said potentiometers, and (c) means for providing the content of said digital memory selectively to the potentiometers according to the desired delay characteristics.
摘要翻译：具有延迟时间与频率成比例的特征的拖尾滤波器和/或去除滤波器，包括：（a）具有彼此串联连接的多个延迟元件的横向滤波器，延迟时间（T）每个延迟元件与输入信号的采样间隔相同，第一延迟元件连接到输入端子，多个电位器各自连接到所述延迟元件的连接点，并且最后延迟元件的输出端提供每个抽头输出的抽头权重和用于提供所述电位器的输出之和以提供本延迟电路的输出的加法器，（b）数字存储器，存储每个期望延迟特性的预计算值，以提供所述电位器的抽头重量，以及（c）用于根据期望的延迟特性向所述电位器选择性地提供所述数字存储器的内容的装置。

2. 发明授权

US3992673A System for demodulating a digital modulated wave 失效
标题翻译：用于解调数字调制波的系统
公开(公告)号：US3992673A
公开(公告)日：1976-11-16
申请号：US476686
申请日：1974-06-05
申请人： Hisakichi Michishita , Hidetaka Yanagidaira , Katsuhiko Furuya
发明人： Hisakichi Michishita , Hidetaka Yanagidaira , Katsuhiko Furuya
IPC分类号： H04L27/18 , H04L27/22 , H03K9/04
CPC分类号： H04L27/22
摘要： A system for demodulating digital phase-modulated wave having signal elements of constant length by detecting in a detector the signal wave elements during every period of substantially the constant length, in which a combining circuit is further provided for estimating digital information content of the signal wave elements by the use of a combined output of detected results obtained by sequentially detecting, the information content of successive two of each signal wave element of the detected output of the detector, so that a demodulated output is obtained by selecting one of the outputs of the detector or the combining circuit.
摘要翻译：一种用于解调具有恒定长度的信号元素的数字相位调制波的系统，其中在检测器中检测基本上恒定长度的每个周期期间的信号波元件，其中进一步提供用于估计信号波的数字信息内容的组合电路通过使用检测结果的组合输出，通过顺序地检测检测器的检测输出的每个信号波形元素的连续两个的信息内容，从而通过选择一个输出来获得解调输出，检测器或组合电路。

3. 发明授权

US4298983A Automatic equalization system in FM communication circuit 失效
标题翻译： FM通信电路中的自动均衡系统
公开(公告)号：US4298983A
公开(公告)日：1981-11-03
申请号：US88521
申请日：1979-10-26
申请人： Kazuo Kawai , Hidetaka Yanagidaira , Michitoshi Tamori
发明人： Kazuo Kawai , Hidetaka Yanagidaira , Michitoshi Tamori
IPC分类号： H04B14/00
CPC分类号： H04B14/006
摘要： An automatic amplitude and phase equalization system in an FM communication circuit, in which a pilot signal included in a baseband signal of a transmitted FM signal demodulated by an FM demodulator is extracted and frequency-multiplied, a high harmonic wave of the pilot signal generated in the baseband signal is phase-detected using the frequency-multiplied output as a reference signal, an amplitude equalizer provided before the FM demodulator is driven by a component included in the phase detected output and of the same phase as the reference signal, and a phase equalizer provided before the FM demodulator is driven by a component included in the phase detected output and orthogonal to the reference signal, whereby amplitude and phase characteristics of a transmission path of the FM signal are automatically equalized.
摘要翻译：一种FM通信电路中的自动幅度相位均衡系统，其中包括在由FM解调器解调的发送的FM信号的基带信号中的导频信号被提取并倍频，产生的导频信号的高次谐波使用倍频输出作为参考信号来对基带信号进行相位检测，在FM解调器之前提供的幅度均衡器由包含在相位检测输出中的分量驱动并且与参考信号相同的相位被驱动，相位在FM解调器由包括在相位检测输出中并与参考信号正交的分量驱动之前提供的均衡器，由此FM信号的传输路径的振幅和相位特性自动相等。

4. 发明授权

US4125899A Bessel function type automatic delay equalizer 失效
标题翻译：贝塞尔功能型自动延时均衡器
公开(公告)号：US4125899A
公开(公告)日：1978-11-14
申请号：US807671
申请日：1977-06-17
申请人： Kazuo Kawai , Michitoshi Tamori , Hidetaka Yanagidaira , Sotokichi Shintani
发明人： Kazuo Kawai , Michitoshi Tamori , Hidetaka Yanagidaira , Sotokichi Shintani
IPC分类号： H03H15/00 , H03H17/00 , H03H17/08 , H04B3/06 , H04B3/14 , H04L25/03 , G06F15/34 , H03H7/16
CPC分类号： H04B3/141 , H04L25/03038
摘要： A Bessel function type automatic delay equalizer comprising a plurality of transversal filters each of which has an independent delay cosine equalization component having a predetermined period, and the superposition of those filters providing the desired characteristics, characterized in that, said equalizer further comprises a Bessel function generator for controlling the tap gain of said transversal filters.
摘要翻译：一种贝塞尔函数类型自动延迟均衡器，包括多个横向滤波器，每个滤波器具有具有预定周期的独立延迟余弦均衡分量，以及提供所需特性的那些滤波器的叠加，其特征在于，所述均衡器还包括贝塞尔函数发生器，用于控制所述横向滤波器的抽头增益。

5. 发明授权

US3987422A System for detecting signal quality of a phase-modulated wave 失效
标题翻译：用于检测相位调制波的信号质量的系统
公开(公告)号：US3987422A
公开(公告)日：1976-10-19
申请号：US454950
申请日：1974-03-26
申请人： Hidetaka Yanagidaira , Katsuhiko Furuya , Sotokichi Shintani
发明人： Hidetaka Yanagidaira , Katsuhiko Furuya , Sotokichi Shintani
IPC分类号： G01R29/06 , H04L1/20 , H04L25/04 , H04L27/00 , H04L27/233 , G08C19/16
CPC分类号： H04L27/2337
摘要： A system for detecting the signal quality of a phase-modulated wave, in which the phase positions of the signal elements of the digital phase-modulated wave are each detected with respect to a reference phase carrier by a phase detector for developing digital output signals composed of higher digits representing the ideal quantized phase positions of the phase-modulated wave signal elements and at least one lower digit representative of the direction of phase deviation of the signal elements from the ideal quantized phase positions so that the lower digit is taken out as signal quality information of the phase-modulated wave.
摘要翻译：一种用于检测相位调制波的信号质量的系统，其中数字相位调制波的信号元件的相位位置各自被相位检测器相对于参考相位载波检测，用于开发数字输出信号表示相位调制波信号元件的理想量化相位位置的高位数字和表示信号元件相对于理想量化相位位置的相位偏移方向的至少一个下位数，以便将低位数字作为信号取出相位调制波的质量信息。

6. 发明授权

US4227160A Transversal type automatic equalizer 失效
标题翻译：横向式自动均衡器
公开(公告)号：US4227160A
公开(公告)日：1980-10-07
申请号：US969364
申请日：1978-12-14
申请人： Michitoshi Tamori , Katsuhiko Furuya , Hidetaka Yanagidaira , Hiroshi Sakaki
发明人： Michitoshi Tamori , Katsuhiko Furuya , Hidetaka Yanagidaira , Hiroshi Sakaki
IPC分类号： H03H15/00 , H04B3/06 , H04L25/03 , H04B3/04
CPC分类号： H04L25/03038
摘要： A transversal type automatic equalizer comprises a transversal filter having a plurality of taps separated by time delay intervals, said transversal filter receiving input signals from a transmission line, a plurality of potentiometers being connected to each of said taps to provide a tap weight and the outputs of the potentiometers being summed up to provide an equalized output signal, and said potentiometers being adjusted by an equalization arithmetic unit. The potentiometers and thereby the tap weights are adjusted according to the output of the arithmetic unit whereby an equalized output with a suppressed ripple characteristic is produced.
摘要翻译：横向型自动均衡器包括具有由时间延迟间隔分开的多个抽头的横向滤波器，所述横向滤波器接收来自传输线的输入信号，多个电位计连接到每个所述抽头以提供抽头重量，并且所述输出电位计的总和以提供均衡的输出信号，并且所述电位计由均衡运算单元调整。根据运算单元的输出调节电位器，从而调节抽头的重量，从而产生具有抑制纹波特性的均衡输出。

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