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1. 发明授权

US4636863A Noise reduction circuit 失效
标题翻译：降噪电路
公开(公告)号：US4636863A
公开(公告)日：1987-01-13
申请号：US776876
申请日：1985-09-17
申请人： Kazuhiro Kaizaki , Sadao Kubota , Hiroshi Harada , Shigeo Matsuura
发明人： Kazuhiro Kaizaki , Sadao Kubota , Hiroshi Harada , Shigeo Matsuura
IPC分类号： H04N5/21 , H04N9/64
CPC分类号： H04N5/21
摘要： A noise reduction circuit for reducing noise in video signal comprises delay circuits for delaying an output video signal for delay time 2S and H-S (H denotes one horizontal scanning period and S denotes a half of one period of the color subcarrier), an average circuit for averaging the outputs of the delay circuits, a subtraction circuit for subtracting the output of the average circuit from an input video signal, an attenuation circuit for attenuating the output of the subtraction circuit, an addition circuit for adding the output of the attenuation circuit to the input video signal, and an edge detection circuit for detecting the edge of pattern in the input video signal. The attenuation factor of the attenuation circuit is set into zero when the edge of pattern is detected.
摘要翻译：用于降低视频信号噪声的降噪电路包括用于延迟延迟时间2S和HS的输出视频信号的延迟电路（H表示一个水平扫描周期，S表示彩色副载波的一个周期的一半），平均电路平均延迟电路的输出，减法电路，用于从输入视频信号中减去平均电路的输出;衰减电路，用于衰减减法电路的输出;加法电路，用于将衰减电路的输出与输入视频信号，以及用于检测输入视频信号中图案边缘的边缘检测电路。当检测到图案的边缘时，衰减电路的衰减因子被设置为零。

2. 发明授权

US5032916A Method of detecting signal waveform disturbance in received television picture signal 失效
标题翻译：检测接收电视图像信号中信号波形干扰的方法
公开(公告)号：US5032916A
公开(公告)日：1991-07-16
申请号：US440346
申请日：1989-11-22
申请人： Shigeo Matsuura , Susumu Takayama , Hiroshi Miyazawa , Masao Usui , Shigehiro Ito , Reiichi Kobayashi
发明人： Shigeo Matsuura , Susumu Takayama , Hiroshi Miyazawa , Masao Usui , Shigehiro Ito , Reiichi Kobayashi
IPC分类号： H04N17/00 , H04N5/21
CPC分类号： H04N5/211
摘要： For canceling ghost components disturbing a received picture signal waveform in the television transmission such as the television broadcast, ghost components of a reference pulse signal inserted at a central portion of a horizontal scanning period in a vertical blanking period of a picture signal is detected and then the received picture signal is processed such as those ghost components of the inserted reference signal are canceled by each other. In this signal processing, an auxiliary reference signal, the waveform and/or the level of which differ from those of the principal reference signal, the latter being occasionally almost zero, is inserted in a horizontal scanning period delayed from the principal reference signal by a repetition period after the lapse of which regular controlling signals such as synchronizing signals and color bursts having just the same waveform, level and phase reappear. In the differential signal waveform between received picture signals respectively neighboring both of reference signals, regular controlling signals are canceled by each other, while ghost components consisting of remaining waveforms except the difference between both of reference signals only are left, so as to facilitate the accurate detection of ghost components even exceedingly delayed over one half of a horizontal scanning period.

3. 发明授权

US4211988A Search tuning system for television receiver 失效
标题翻译：电视接收机搜索调谐系统
公开(公告)号：US4211988A
公开(公告)日：1980-07-08
申请号：US946193
申请日：1978-09-27
申请人： Shigeo Matsuura , Eisaku Akutsu , Hiroshi Miyamoto
发明人： Shigeo Matsuura , Eisaku Akutsu , Hiroshi Miyamoto
IPC分类号： H02M7/515 , H03J1/00 , H03J7/18 , H03J7/28 , H03J3/04
CPC分类号： H03J7/18 , H03J7/28
摘要： A search tuning type channel detector system for television receivers. When AFC voltage of a tuner has attained a first predetermined voltage level, frequency sweeping direction for tuning is reversed and stopped thereby to tune the tuner at an optimum tuning frequency. Means are provided to allow the inversion as well as stoppage of the frequency sweeping only when AFC voltage has attained a second predetermined voltage level, thereby to exclude possible erroneous operation due to noise or the like spurious signal components.
摘要翻译：一种用于电视接收机的搜索调谐型信道检测器系统。当调谐器的AFC电压达到第一预定电压电平时，用于调谐的频率扫描方向被反转并停止，从而以最佳调谐频率调谐调谐器。仅当AFC电压达到第二预定电压电平时，提供装置以允许反转以及频率扫描的停止，从而排除由于噪声或类似的寄生信号分量引起的可能的错误操作。

4. 发明授权

US4363134A Channel selection apparatus 失效
标题翻译：通道选择装置
公开(公告)号：US4363134A
公开(公告)日：1982-12-07
申请号：US168733
申请日：1980-07-14
申请人： Toshinori Murata , Shigeo Matsuura
发明人： Toshinori Murata , Shigeo Matsuura
IPC分类号： H03J7/18 , H03H9/64 , H03J5/02 , H03J7/28 , H04B1/16
CPC分类号： H03J5/0245
摘要： In a channel selection apparatus for a television receiver or FM radio receiver having an electronic tuner, a local oscillation signal of the electronic tuner having a local oscillator which is swept by a voltage sweeping circuit is passed through a comb-shape filter having a SAW element. Peak outputs from the comb-shape filter are counted by a presettable counter. When the count reaches a preset count, the sweeping operation of the voltage sweeping circuit is stopped to select a desired channel. A portion of the peaks of the comb-shape filter characteristic is attenuated and a gap appearing at the attenuated portion is detected by the frequency sweep of the local oscillation signal with a change in time interval. The detection signal is compared to discriminate the first pulse necessary for the channel selection.
摘要翻译：在具有电子调谐器的电视接收机或FM无线电接收机的频道选择装置中，具有被电压扫描电路扫过的本地振荡器的电子调谐器的本地振荡信号通过具有SAW元件的梳状滤波器。来自梳状滤波器的峰值输出由计数器计数。当计数达到预设计数时，停止电压扫描电路的扫描操作以选择所需的通道。梳状滤波器特性的峰值的一部分被衰减，并且通过随时间间隔的变化的本地振荡信号的频率扫描来检测在衰减部分出现的间隙。将检测信号进行比较，以区分通道选择所需的第一脉冲。

5. 发明授权

US4270219A Channel selection apparatus tunable to destined frequency in short time 失效
标题翻译：通道选择装置在短时间内可调谐到目标频率
公开(公告)号：US4270219A
公开(公告)日：1981-05-26
申请号：US951043
申请日：1978-10-13
申请人： Toshinori Murata , Shigeo Matsuura
发明人： Toshinori Murata , Shigeo Matsuura
IPC分类号： H03J7/28 , H04B1/16
CPC分类号： H03J7/28
摘要： A channel selection apparatus comprises a sweep control voltage generator driven by a circuit for sweeping the local oscillation signal frequency in an electronic tuner. The local oscillation signal frequency sweeping circuit includes an arrangement for increasing the rate of sweeping the local oscillation signal frequency only when the latter is being changed not in the vicinity of a destined frequency. The apparatus may further comprise another arrangement for preventing an eventual excessive sweeping beyond the destined frequency.
摘要翻译：频道选择装置包括由用于扫描电子调谐器中的本地振荡信号频率的电路驱动的扫描控制电压发生器。本地振荡信号频率扫描电路包括用于只有当后者改变为不在目的地频率附近时才增加扫描本地振荡信号频率的装置。该装置还可以包括用于防止最终超过目的地频率的过度扫描的另一种装置。

6. 发明授权

US4160953A Self-oscillation mixer circuits 失效
标题翻译：自振荡混频电路
公开(公告)号：US4160953A
公开(公告)日：1979-07-10
申请号：US885978
申请日：1978-03-13
申请人： Shigeo Matsuura , Toshio Nagashima , Mitsuhisa Shinagawa
发明人： Shigeo Matsuura , Toshio Nagashima , Mitsuhisa Shinagawa
IPC分类号： H03B5/12 , H03D7/12 , H03D11/04 , H04B1/28
CPC分类号： H03D11/04 , H03B5/1203 , H03B5/1231 , H03B5/124 , H03B5/1256 , H03D7/12
摘要： A self-oscillation mixer circuit includes a cascade amplifier circuitry which is composed of a first transistor of a common emitter connection having a collector connected to an emitter of a second transistor of a common base connection, a filter circuitry for deriving an intermediate frequency signal and a resonance circuit adapted to resonate at a local oscillation frequency being connected to the collector of the second transistor and a feedback circuitry connected between the resonance circuitry and the emitter of the first transistor.
摘要翻译：自振荡混频器电路包括级联放大器电路，其由具有连接到公共基极连接的第二晶体管的发射极的集电极的公共发射极连接的第一晶体管，用于导出中频信号的滤波器电路和谐振电路，其适于以连接到第二晶体管的集电极的本地振荡频率谐振，以及连接在谐振电路和第一晶体管的发射极之间的反馈电路。

7. 发明授权

US4555702A Remote control signal reproducing circuit 失效
标题翻译：遥控信号再现电路
公开(公告)号：US4555702A
公开(公告)日：1985-11-26
申请号：US418254
申请日：1982-09-15
申请人： Shigeo Matsuura , Uji Ito , Yasuhiro Yakushiji
发明人： Shigeo Matsuura , Uji Ito , Yasuhiro Yakushiji
IPC分类号： H03J9/00 , H03J9/06 , H04Q9/14 , H04Q9/16 , H04Q1/36
CPC分类号： H03J9/06
摘要： A remote control signal reproducing circuit for use in a remotely-controlled receiver which receives a modulated transmission signal subjected to a pulse modulation, reproduces an original remote control signal form the received modulated transmission signal, and judges the reproduced remote control signal for effecting predetermined control operations based on pulse counts obtained during three predetermined successive time intervals.A remote control signal is delivered if the pulse count obtained in the first time interval exceeds a first level. Judgement of the remote control signal is stopped when the number of pulses counted during the second and third time intervals is below or above predetermined numbers respectively. The circuit functions to eliminate noise pulse.
摘要翻译：遥控信号再现电路，用于接收受到脉冲调制的调制传输信号的遥控接收机，从接收到的调制传输信号中再现原始的遥控信号，并判断再现的遥控信号以进行预定的控制基于在三个预定的连续时间间隔期间获得的脉冲计数的操作。如果在第一时间间隔中获得的脉冲数超过第一级，则传送远程控制信号。当在第二和第三时间间隔期间计数的脉冲数分别低于或高于预定数时，遥控信号的判断被停止。该电路用于消除噪声脉冲。

8. 发明授权

US4337486A Synchronizing signal discriminator for use in channel selection apparatus of television receiver 失效
标题翻译：同步信号鉴频器用于电视接收机的频道选择装置
公开(公告)号：US4337486A
公开(公告)日：1982-06-29
申请号：US212256
申请日：1980-12-02
申请人： Eisaku Akutsu , Shigeo Matsuura
发明人： Eisaku Akutsu , Shigeo Matsuura
IPC分类号： H03J5/02 , H03J7/18 , H04N5/44 , H04N5/08
CPC分类号： H03J7/18
摘要： A synchronizing signal discrimination circuit for use in a channel selection apparatus having a preset function of a television receiver is disclosed. The circuit has a function to discriminate a periodic and continuous signal and a non-periodic and one-shot signal to distinguish a synchronizing signal from a noise. The present synchronizing signal discrimination circuit determines a time period from the application of a first input signal to the input terminal to the application of a second input signal to the input terminal by the first time interval signal and the second time interval signal to detect only the periodic and continuous signal as the synchronizing signal.
摘要翻译：公开了一种用于具有电视接收机的预设功能的频道选择装置中的同步信号鉴别电路。该电路具有区分周期性和连续信号以及非周期性和单触发信号以区别同步信号与噪声的功能。本同步信号鉴别电路确定从第一输入信号施加到输入端的时间段到通过第一时间间隔信号和第二时间间隔信号向输入端施加第二输入信号，以仅检测周期性和连续信号作为同步信号。

9. 发明授权

US4232397A Automatic channel selection apparatus 失效
标题翻译：自动频道选择装置
公开(公告)号：US4232397A
公开(公告)日：1980-11-04
申请号：US936923
申请日：1978-08-25
申请人： Toshinori Murata , Shigeo Matsuura
发明人： Toshinori Murata , Shigeo Matsuura
IPC分类号： H03J7/18 , H03J5/02 , H03J7/28 , H04B1/32
CPC分类号： H03J7/28 , H03J5/0245
摘要： An automatic channel selection apparatus comprises an electronic tuner having a local oscillator an oscillation frequency of which is controlled by an applied voltage, a voltage sweep circuit for sweeping the voltage to be applied to the local oscillator, means for deriving from an output of the local oscillator, signals of different phases and combining those signals, a detector for envelope-detecting an output of the deriving means and means for counting the number of varying cycle periods in the output of the detector which changes periodically each time the oscillation frequency of the local oscillator changes by a given amount which is inversely proportional to the phase difference to change a tuning frequency of the electronic tuner by a specified amount.
摘要翻译：自动频道选择装置包括具有振荡频率由施加电压控制的本地振荡器的电子调谐器，用于扫描施加到本地振荡器的电压的电压扫描电路，用于从本地振荡器的输出导出的装置振荡器，不同相位的信号并组合这些信号，用于包络检测导出装置的输出的检测器和用于对每次本地振荡频率周期性地改变的检测器的输出中的变化周期周期数进行计数的装置振荡器以与相位差成反比的给定量变化，以将电子调谐器的调谐频率改变指定量。

10. 发明授权

US4491976A Wide-band tuner having a temperature-compensated microstrip resonator arrangement 失效
标题翻译：具有温度补偿微带谐振器装置的宽带调谐器
公开(公告)号：US4491976A
公开(公告)日：1985-01-01
申请号：US436357
申请日：1982-10-25
申请人： Takeshi Saitoh , Shigeo Matsuura , Minoru Moteki , Hiroshi Hatashita
发明人： Takeshi Saitoh , Shigeo Matsuura , Minoru Moteki , Hiroshi Hatashita
IPC分类号： H04B1/26 , H01P7/08 , H03B5/18 , H03D7/16 , H03J7/06 , H03L1/02
CPC分类号： H01P7/082 , H03D7/163 , H03J7/065 , H03L1/021 , H03B5/1852
摘要： A double-superheterodyne tuner for a television receiver comprises a tunable oscillator, a fixed oscillator, two mixer stages and a band-pass filter between the mixer stages, and operates at a GHz intermediate frequency between the mixer stages. The two oscillators and the bandpass filter each includes a microstrip line resonator formed in a dielectric body having substantially the same dielectric constant and dielectric constant temperature coefficient to each other, thereby compensating the variation of the resonant frequency in the resonator due to an ambient temperature variation.
摘要翻译：用于电视接收机的双超外差调谐器包括可调谐振荡器，固定振荡器，混频器级之间的两个混频器级和带通滤波器，并且在混频器级之间以GHz的中频进行操作。两个振荡器和带通滤波器各自包括形成在彼此具有基本上相同的介电常数和介电常数温度系数的电介质体中的微带线谐振器，从而补偿由于环境温度变化而引起的共振频率的变化。

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