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1.发明授权Write clock generator for time base corrector including frequency fluctuation and write clock difference signal reduction 失效用于时基校正器的写时钟发生器，包括频率波动和写时钟差信号降低
公开(公告)号：US4768103A
公开(公告)日：1988-08-30
申请号：US838950
申请日：1986-03-12
CPC分类号： H04N9/896
摘要： A write clock generator for a time base corrector incorporated in a video tape recorder can generate a write clock signal including accurate phase and frequency fluctuation information on a reproduced video signal in spite of a simple circuit configuration. A write clock signal is generated from a VCO oscillated in response to a reproduced burst signal, and further the VCO is so controlled on the basis of frequency difference between the oscillated write clock signal and a frequency fluctuation signal such that the frequency difference may be eliminated. The frequency fluctuation signal is generated in response to a horizontal synchronizing signal so as to include time base fluctuations in a reproduced video signal.
摘要翻译： 用于并入录像机中的时基校正器的写时钟发生器可以产生一个写入时钟信号，尽管有一个简单的电路配置，该时钟信号包括关于再现的视频信号的精确的相位和频率波动信息。 从响应于再现的脉冲信号振荡的VCO产生写入时钟信号，并且还基于振荡的写入时钟信号和频率波动信号之间的频率差来控制VCO，从而可以消除频率差异 。 响应于水平同步信号产生频率波动信号，以便包括再现的视频信号中的时基波动。
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公开(公告)号：US4613827A
公开(公告)日：1986-09-23
申请号：US758341
申请日：1985-07-24
CPC分类号： H04N9/896 , H03L7/0891
摘要： A write clock pulse generator is disclosed, in which a horizontal synchronizing signal is separated from an input video signal and supplied to a PLL (phase locked loop) circuit to form a first clock with the frequency of nf.sub.H (n is an integer), a color burst signal is separated from the input video signal and used to drive a gate type variable oscillator to thereby form a second clock synchronized in phase with the color burst signal and whose average frequency is nf.sub.H, a difference between the pulse widths of the clocks resulting from counting down the first and second clocks to 1/M and the frequency of the variable oscillator is controlled by the compared output therebetween, whereby to produce a second clock synchronized in phase with the color burst signal and the frequency of which is n times the horizontal synchronizing signal.
摘要翻译： 公开了一种写入时钟脉冲发生器，其中水平同步信号与输入视频信号分离并提供给PLL（锁相环）电路以形成频率为nfH（n为整数）的第一时钟， 色同步信号与输入视频信号分离，用于驱动门型可变振荡器，从而形成与彩色同步信号同相同步的第二时钟，其平均频率为nfH，产生的时钟的脉冲宽度之间的差 从第一和第二时钟向下计数到1 / M，可变振荡器的频率由它们之间的比较输出控制，从而产生与色同步信号同步同步的第二个时钟，频率是n倍 水平同步信号。
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公开(公告)号：US5896181A
公开(公告)日：1999-04-20
申请号：US891815
申请日：1997-07-14
申请人： Tsutomu Takamori
发明人： Tsutomu Takamori
IPC分类号： H04N5/268
CPC分类号： H04N5/268
摘要： A digital switcher of this invention comprises a matrix switcher section 11 adapted so that a plurality of serial digital video signals are inputted through respective input buses, a control section 12 for carrying out operation control of the matrix switcher section 11, signal processing sections 13A, 13B . . . connected to a plurality of output buses of the matrix switcher section 11, an input detector 14 connected to one output bus of the matrix switcher section 11, and an error detector 15 connected to one output bus of the matrix switcher section 11. An approach is employed to control the matrix switcher section 11 by the control section 12 with respect to a plurality of digital video signals inputted through respective input buses to thereby selectively detect presence or absence of input and occurrence of error by the input detector 14 and the error detector 15 connected to one output bus of the matrix switcher section 11.
摘要翻译： 本发明的数字切换器包括矩阵切换器部分11，其适于使得通过各个输入总线输入多个串行数字视频信号;控制部分12，用于执行矩阵切换器部分11的操作控制;信号处理部分13A， 13B。 。 。 连接到矩阵切换器部分11的多个输出总线，连接到矩阵切换器部分11的一个输出总线的输入检测器14和连接到矩阵切换器部分11的一个输出总线的错误检测器15.方法是 用于通过控制部分12相对于通过各个输入总线输入的多个数字视频信号来控制矩阵切换器部分11，从而通过输入检测器14和误差检测器15选择性地检测是否存在输入和出现错误 连接到矩阵切换器部分11的一个输出总线。
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公开(公告)号：US5754254A
公开(公告)日：1998-05-19
申请号：US583549
申请日：1996-01-05
申请人： Seiji Kobayashi , Tsutomu Takamori , Ryuji Nonaka
发明人： Seiji Kobayashi , Tsutomu Takamori , Ryuji Nonaka
CPC分类号： H04N5/268 , G11B27/032 , H04H60/04 , H04H20/10
摘要： A digital video audio processing apparatus in which serial signal formed digital video signals and digital audio signals, which are supplied to a plurality of input terminals and are multiplexed each other, are converted into parallel signal form respectively; the digital video signals and digital audio signals are separated respectively; switching processing or video special effect processing is performed on a plurality of digital video signals; switching processing or mixing processing is performed on a plurality of digital audio signals; and these processed digital video signals and digital audio signals are multiplexed each other to convert into serial signal form and output them.
摘要翻译： 一种数字视频音频处理装置，其中形成数字视频信号和数字音频信号的数字视频信号和数字音频信号被提供给多个输入端并被彼此复用，分别被转换成并行信号形式; 数字视频信号和数字音频信号分别分离; 对多个数字视频信号执行切换处理或视频特效处理; 对多个数字音频信号执行切换处理或混合处理; 并且将这些处理的数字视频信号和数字音频信号彼此复用以转换成串行信号形式并输出。
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公开(公告)号：US4743961A
公开(公告)日：1988-05-10
申请号：US854508
申请日：1986-04-22
申请人： Yuji Kobayashi , Tsutomu Takamori
发明人： Yuji Kobayashi , Tsutomu Takamori
摘要： A digital chrominance signal processing system for processing an input digital composite chrominance signal, which is sampled with a sampling frequency f.sub.s =2mf.sub.sc, wherein m is an integer and f.sub.sc is a color subcarrier frequency, has a decoder for decoding the input digital composite chrominance signal into digital chrominance components, the decoder including a code converter for inverting the input digital composite chrominance signal and a switch for selectively switching between the input digital composite chrominance signal and an output of the code converter at a switching rate mf.sub.sc.
摘要翻译： 一种用于处理以采样频率fs = 2mfsc采样的输入数字复合色度信号的数字色度信号处理系统，其中m是整数，fsc是彩色副载波频率，具有用于对输入的数字复合色度信号进行解码的解码器 解码器包括用于反相输入数字复合色度信号的代码转换器和用于以切换速率mfsc选择性地在输入数字合成色度信号和代码转换器的输出之间切换的开关。
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6.发明授权Analog TV broadcast signal receiving apparatus and analog TV broadcast signal demodulating apparatus 有权模拟电视广播信号接收装置和模拟电视广播信号解调装置公开(公告)号：US08264617B2
公开(公告)日：2012-09-11
申请号：US12413908
申请日：2009-03-30
IPC分类号： H04N5/455
摘要： Disclosed herein is an analog television broadcast signal receiving apparatus including: a tuner section configured to convert an analog television broadcast signal into a predetermined intermediate frequency band signal; a demodulation circuit section configured to obtain a picture output signal and a sound intermediate frequency signal from the predetermined intermediate frequency band signal coming from the tuner section; a picture processing circuit section configured to convert the picture output signal into a display-ready picture signal; a sound demodulation processing circuit section configured to demodulate the sound intermediate frequency signal; and a control section.
摘要翻译： 这里公开了一种模拟电视广播信号接收装置，包括：调谐器部分，被配置为将模拟电视广播信号转换成预定的中频带信号; 解调电路部，被配置为从所述调谐器部分获得来自所述预定中频带信号的图像输出信号和声音中频信号; 图像处理电路部分，被配置为将图像输出信号转换为显示就绪图像信号; 声音解调处理电路部，被配置为对声音中频信号进行解调; 和控制部分。
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公开(公告)号：US5793440A
公开(公告)日：1998-08-11
申请号：US405158
申请日：1995-03-16
CPC分类号： H04N5/275 , H04N5/2622
摘要： A key signal processing apparatus for video signal processing including a signal delay circuit for successively delaying by 1 clock units a key input signal, used for applying a special effect to a video signal, and outputting the delayed key signal; a signal selection circuit for receiving the key input signal and a plurality of delayed key signals output from the signal delay circuit and selecting based on a selection control signal two pairs of signals in predetermined relationships of delay; a first signal interpolation circuit for performing signal interpolation on the first pair output from the signal selection circuit using a first coefficient; a second signal interpolation circuit for performing signal interpolation on the second pair output from the signal selection circuit using a second coefficient; and a signal synthesization circuit for combining a signal from the output of the first signal interpolation circuit and the output of the second signal interpolation circuit and outputting it as a key signal for video signal processing.
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公开(公告)号：US5754255A
公开(公告)日：1998-05-19
申请号：US553463
申请日：1995-11-28
申请人： Tsutomu Takamori
发明人： Tsutomu Takamori
IPC分类号： H04N5/268
CPC分类号： H04N5/268
摘要： A digital switcher of this invention comprises a matrix switcher section 11 adapted so that a plurality of serial digital video signals are inputted through respective input buses, a control section 12 for carrying out operation control of the matrix switcher section 11, signal processing sections 13A, 13B . . . connected to a plurality of output buses of the matrix switcher section 11, an input detector 14 connected to one output bus of the matrix switcher section 11, and an error detector 15 connected to one output bus of the matrix switcher section 11. An approach is employed to control the matrix switcher section 11 by the control section 12 with respect to a plurality of digital video signals inputted through respective input buses to thereby selectively detect presence or absence of input and occurrence of error by the input detector 14 and the error detector 15 connected to one output bus of the matrix switcher section 11.
摘要翻译： PCT No.PCT / JP95 / 00512 Sec。 371日期：1995年11月28日 102（e）1995年11月28日PCT PCT 1995年3月20日PCT公布。 WO95 / 27368 PCT公开 日期：1995年10月12日本发明的数字切换器包括：矩阵切换器部分11，其适于使得通过各个输入总线输入多个串行数字视频信号;控制部分12，用于执行矩阵切换器部分11的操作控制; 信号处理部13A，13B。 。 。 连接到矩阵切换器部分11的多个输出总线，连接到矩阵切换器部分11的一个输出总线的输入检测器14和连接到矩阵切换器部分11的一个输出总线的错误检测器15.方法是 用于通过控制部分12相对于通过各个输入总线输入的多个数字视频信号来控制矩阵切换器部分11，从而通过输入检测器14和误差检测器15选择性地检测是否存在输入和出现错误 连接到矩阵切换器部分11的一个输出总线。
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公开(公告)号：US5161032A
公开(公告)日：1992-11-03
申请号：US593393
申请日：1990-10-02
申请人： Yuji Kobayashi , Tsutomu Takamori
发明人： Yuji Kobayashi , Tsutomu Takamori
CPC分类号： H04N9/89
摘要： There is an apparatus for generating a velocity error signal for use in a time base corrector. This apparatus comprises: an A/D converter that converts a velocity error to a digital signal that is fed to a summing circuit to convert it to a phase shift amount. A zero value interpolation circuit multiplies the sampling frequency of the phase shift amount with an integer and a digital low-pass filter interpolates an output signal of the interpolation circuit. A differentiating circuit to convert an interpolated phase shift amount of an output signal of the LPF to a phase difference and a D/A converter 9 converts the digital phase difference data to an analog signal. With this apparatus, the velocity error can be accurately corrected.
摘要翻译： 存在用于生成用于时基校正器的速度误差信号的装置。 该装置包括：A / D转换器，其将速度误差转换为馈送到求和电路的数字信号，以将其转换为相移量。 零值内插电路将相移量的采样频率与整数相乘，并且数字低通滤波器内插内插电路的输出信号。 将LPF的输出信号的内插相移量转换为相位差的差分电路和D / A转换器9将数字相位差数据转换为模拟信号。 利用该装置，可以精确地校正速度误差。
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公开(公告)号：US4766495A
公开(公告)日：1988-08-23
申请号：US948076
申请日：1986-12-31
申请人： Yuji Kobayashi , Tsutomu Takamori
发明人： Yuji Kobayashi , Tsutomu Takamori
CPC分类号： H04N5/956
摘要： In a phase error correcting apparatus for correcting the phase of an input sampled signal having discrete digital data at a predetermined sampling period by means of a phase error signal, an interpolating calculation is made therein using digital data of the input sampled signal so that digital data of a corrected output sampled signal at the sampling points can thereby be obtained, and thus, the output sampled signal is obtained in which corrected sampled digital data are produced at the same sampling time points at the predetermined sampling period.
摘要翻译： 在相位误差校正装置中，通过相位误差信号校正具有预定采样周期的离散数字数据的输入采样信号的相位，其中使用输入采样信号的数字数据进行内插计算，使得数字数据 可以获得采样点的校正输出采样信号，从而获得在预定采样周期的相同采样时间点产生校正的采样数字数据的输出采样信号。
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