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1. 发明授权

US4344089A Ghost cancelling system 失效
标题翻译：鬼取消系统
公开(公告)号：US4344089A
公开(公告)日：1982-08-10
申请号：US222687
申请日：1981-01-05
申请人： Kimitake Utsunomiya , Hisafumi Yamada , Choei Kuriki
发明人： Kimitake Utsunomiya , Hisafumi Yamada , Choei Kuriki
IPC分类号： H04B1/12 , H04B3/23 , H04L25/03 , H04N5/21
CPC分类号： H04B3/23 , H04B1/12 , H04N5/211 , H04L2025/03573
摘要： A ghost cancelling system for eliminating a ghost by using a ghost cancelling signal formed from an input video signal including the ghost and adding the ghost cancelling signal to the input video signal. In this ghost cancelling system, the divergence of the ghost cancelling circuit is avoided during the transient time of the channel selection or during the ghost cancelling process, and when there is the possibility that the ghost cancelling circuit diverges, the circuit is firstly made operable as a feed-forward type circuit for a predetermined period and thereafter made operable as a feedback type circuit.
摘要翻译：一种重影消除系统，用于通过使用由包括重影的输入视频信号形成的重影消除信号来消除重影，并将重影消除信号添加到输入视频信号。在这种重影消除系统中，在频道选择的过渡时间期间或在重影消除处理期间避免重影消除电路的发散，并且当存在重影消除电路发散的可能性时，电路首先可以作为预定时间段的前馈型电路，此后可作为反馈型电路工作。

2. 发明授权

US4357631A Ghost cancelling system 失效
标题翻译：鬼取消系统
公开(公告)号：US4357631A
公开(公告)日：1982-11-02
申请号：US248199
申请日：1981-03-27
申请人： Kimitake Utsunomiya , Hisafumi Yamada , Choei Kuriki
发明人： Kimitake Utsunomiya , Hisafumi Yamada , Choei Kuriki
IPC分类号： H04B1/10 , H04N5/21
CPC分类号： H04N5/211
摘要： A ghost cancelling system is disclosed which includes an input terminal applied with a video signal including a ghost signal component, a ghost cancelling circuit connected to the input terminal, the ghost cancelling circuit including a transversal filter, and an output terminal connected to the ghost cancelling circuit for deriving an output video signal in which the ghost signal component is substantially suppressed. In this case, the transversal filter comprises the combination of a common delay circuit used for a signal delay circuit and for a demultiplexer circuit in time divisional manner, a memory circuit connected to the common delay circuit and activated when the common delay circuit is used for the demultiplexer circuit, and a weighting circuit connected between the memory circuit and the common delay circuit.
摘要翻译：公开了一种重影消除系统，其包括施加有包括重影信号分量的视频信号，连接到输入端的重影消除电路，包括横向滤波器的重影消除电路以及连接到重影消除的输出端的输入端用于导出输出视频信号的电路，其中重影信号分量基本上被抑制。在这种情况下，横向滤波器包括用于信号延迟电路的公共延迟电路和时分方式的解复用器电路的组合，连接到公共延迟电路的存储器电路，并且当公共延迟电路用于解复用器电路和连接在存储器电路和公共延迟电路之间的加权电路。

3. 发明授权

US4275420A Television receiver with a ghost detector 失效
标题翻译：带有幽灵探测器的电视接收机
公开(公告)号：US4275420A
公开(公告)日：1981-06-23
申请号：US132143
申请日：1980-03-20
申请人： Hisafumi Yamada , Masaharu Tokuhara , Choei Kuriki
发明人： Hisafumi Yamada , Masaharu Tokuhara , Choei Kuriki
IPC分类号： H04N5/21 , H04N5/52 , H04N17/00
CPC分类号： H04N5/211
摘要： A television receiver is disclosed in which there are provided a television signal receiving circuit including RF and IF stages; a video detector connected to the television signal receiving circuits; an AGC circuit connected between the video detector and television signal receiving circuit for automatically controlling the gain of the latter, the AGC circuit having a predetermined time constant; and a ghost detector connected to the video detector for detecting a ghost signal during a certain period in a vertical blanking period of the video signal from the video detector. In this case, a switching device is provided for switching the AGC circuit at least during the certain period in the vertical blanking period such that the detected ghost level is not substantially influenced by the transient level change of the AGC circuit.
摘要翻译：公开了一种电视接收机，其中提供了包括RF和IF级的电视信号接收电路; 连接到电视信号接收电路的视频检测器; 连接在视频检测器和电视信号接收电路之间的AGC电路，用于自动控制后者的增益，AGC电路具有预定的时间常数; 以及连接到视频检测器的重影检测器，用于在来自视频检测器的视频信号的垂直消隐期间的一定周期内检测重影信号。在这种情况下，提供一种开关装置，用于至少在垂直消隐期间的特定周期内切换AGC电路，使得检测到的重影电平基本上不受AGC电路的瞬态电平变化的影响。

4. 发明授权

US4621288A Reference time detecting circuit 失效
标题翻译：参考时间检测电路
公开(公告)号：US4621288A
公开(公告)日：1986-11-04
申请号：US515043
申请日：1983-06-20
申请人： Hisafumi Yamada , Choei Kuriki , Junya Saito
发明人： Hisafumi Yamada , Choei Kuriki , Junya Saito
IPC分类号： H04N5/10 , H04N5/21 , H04N5/05 , H04N5/93
CPC分类号： H04N5/211 , H04N5/10
摘要： A reference time detecting circuit for detecting a predetermined transit of a synchronizing signal taken as a reference time of a video signal detects the reference time by using a masking pulse including the predetermined transit and the video signal. The level for detecting the transit is set at a side over a half level of the synchronizing signal level, and a detecting signal and the masking pulse are supplied to a flip-flop circuit (60) from which an output signal is derived. Since the level for detecting the transit is set at the side over the half level of the synchronizing signal level, the reference time can be detected by a first pulse in a range of the masking pulse. Furthermore, since this signal and the masking pulse are supplied to the flip-flop circuit (60), a reference time signal can be formed quite easily.
摘要翻译： PCT No.PCT / JP82 / 00416 Sec。 371日期：1983年6月20日 102（e）日期1982年6月20日PCT申请日1982年10月21日PCT公布。出版物WO83 / 01552 日期：1983年4月28日。用于检测作为视频信号的参考时间的同步信号的预定传输的参考时间检测电路通过使用包括预定传输和视频信号的掩蔽脉冲来检测参考时间。用于检测传输的电平被设置在同步信号电平的一半以上的一侧，并且检测信号和掩蔽脉冲被提供给从其导出输出信号的触发电路（60）。由于用于检测传输的电平被设置在同步信号电平的一半以上的一侧，所以可以通过屏蔽脉冲的范围内的第一脉冲来检测参考时间。此外，由于该信号和掩蔽脉冲被提供给触发器电路（60），因此可以非常容易地形成基准时间信号。

5. 发明授权

US4081728A DC motor control circuit 失效
标题翻译：直流电机控制电路
公开(公告)号：US4081728A
公开(公告)日：1978-03-28
申请号：US707041
申请日：1976-07-20
申请人： Akira Nikami , Choei Kuriki
发明人： Akira Nikami , Choei Kuriki
IPC分类号： H02P1/16 , H02P1/18 , H02P23/00 , H02P29/00 , H02P5/06
CPC分类号： H02P1/18 , H02P23/186 , Y10S388/901 , Y10S388/915 , Y10S388/916 , Y10S388/921
摘要： A DC motor control circuit is provided with a starter circuit responsive to the frequency of a rotational signal derived from a signal generator attached to the DC motor. The starter circuit includes a monostable multivibrator which ceases to operate when the frequency of the rotational signal exceeds a predetermined frequency.
摘要翻译：直流电动机控制电路具有响应于从连接到直流电动机的信号发生器得到的旋转信号的频率的起动电路。起动电路包括单稳态多谐振荡器，其在旋转信号的频率超过预定频率时停止工作。

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