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    • 11. 发明授权
    • Video signal processing device and method
    • 视频信号处理装置及方法
    • US5351089A
    • 1994-09-27
    • US13376
    • 1993-02-04
    • Yoshiyuki MatsumotoMakoto Furihata
    • Yoshiyuki MatsumotoMakoto Furihata
    • H04N9/64H04N9/45H04N9/66
    • H04N9/641
    • A video signal processing device comprises: a unit for extracting a first color burst signal from a first video signal; a unit for generating a first subcarrier in synchronism with the first color burst signal extracted from the first video signal; a unit for extracting a second chrominance signal and a second color burst signal from a second video signal; a unit for demodulating the second chrominance signal and the second color burst signal on the basis of the first subcarrier to obtain a demodulated second color signal and a demodulated second color burst signal; and an operating unit for performing operation process of the demodulated second color signal on the basis of the demodulated second color burst signal in a manner such that the demodulated second color signal is converted into a corrected color signal which is substantially the same as an imaginal second color signal which is obtained on the assumption that the second chrominance signal is demodulated on the basis of a second subcarrier synchronized with the second color burst signal extracted from the second video signal.
    • 视频信号处理装置包括:用于从第一视频信号中提取第一色同步信号的单元; 用于与从第一视频信号提取的第一色同步信号同步地产生第一子载波的单元; 用于从第二视频信号中提取第二色度信号和第二色同步信号的单元; 基于所述第一子载波来解调所述第二色度信号和所述第二色同步信号的单元,以获得解调的第二颜色信号和解调的第二色同步信号; 以及操作单元,用于以解调的第二颜色信号被转换为与想象的第二颜色信号基本相同的校正颜色信号的方式,基于解调的第二色同步信号来执行解调的第二颜色信号的操作处理 基于与从第二视频信号提取的第二色同步信号同步的第二副载波来解调第二色度信号而获得的彩色信号。
    • 12. 发明授权
    • Method of automatic circuit translation
    • 自动电路翻译方法
    • US4942536A
    • 1990-07-17
    • US854032
    • 1986-04-21
    • Toshinori WatanabeFumihiko MoriTamotsu NishiyamaMakoto FurihataYasuo KominamiNoboru Horie
    • Toshinori WatanabeFumihiko MoriTamotsu NishiyamaMakoto FurihataYasuo KominamiNoboru Horie
    • G06F17/50
    • G06F17/505
    • In a case where an electronic circuit having the same function is to be realized by a different device, it is indispensable to prepare circuit diagrams conforming to devices and to utilize them for the job of circuit simulation or chip layout. When the circuit diagrams are to be automatically translated for the above purpose, translation rules become different depending upon the connective relations of an element to be translated, with other elements in the circuit or upon a function performed by the element. The present invention puts the rules into knowledge from the viewpoint of knowledge engineering and utilizes it thereby to realize the intended purpose. It is characterized in that, when a circuit constructed of a first type of elements is to be translated into a circuit constructed of second type of elements different from the first type of elements, appropriate ones among translation rules are automatically selected for the respective first or second type of elements on the basis of determined results based on knowledge groups of connective relations with other elements of the same circuit and are applied to the first or second type of elements.
    • 在具有相同功能的电子电路要通过不同的装置实现的情况下,制备符合装置的电路图是不可或缺的,并且用于电路仿真或芯片布局。 当为了上述目的而自动翻译电路图时,转换规则根据要转换的元件与电路中的其他元件或元件执行的功能的连接关系而变化。 本发明从知识工程的角度将规则化为知识,并利用其实现预期目的。 其特征在于,当将由第一类型的元件构成的电路转换成由不同于第一类型的元件的第二类型的元件构成的电路时,自动选择翻译规则中适当的第一或第 在基于与同一电路的其他元件的连接关系的知识组的确定结果的基础上的第二类型的元素并且被应用于第一或第二类型的元素。
    • 14. 发明授权
    • A/D Converter with bit extension capability using wired-OR outputs
    • 具有位扩展功能的A / D转换器,使用有线或/或输出
    • US4509036A
    • 1985-04-02
    • US292587
    • 1981-08-13
    • Makoto Furihata
    • Makoto Furihata
    • H03M1/00H03K13/02
    • H03M1/361
    • A parallel comparator includes a plurality of comparator portions each having first and second transistors differentially connected. The first transistors have their bases connected to receive an analog input signal, whereas the second transistors have their bases connected to receive reference voltages having different levels. Among the plural comparator portions, the collector of the first transistor and the collector of the second transistor are connected with a load in accordance to a predetermined rule. An A/D converter for converting an analog input signal into digital signals of plural codes is also provided which includes a critical detecting comparator for generating a detection output at a predetermined level when the digital signals of the plural codes are converted into such an analog signal as effects the overflow or underflow. The A/D converter includes a control circuit for forcibly controlling the levels of the digital signals of the plural bits in case the detection output of the critical detecting comparator reaches a predetermined level.
    • 并联比较器包括多个比较器部分,每个比较器部分具有差分连接的第一和第二晶体管。 第一晶体管的基极连接以接收模拟输入信号,而第二晶体管的基极连接成接收具有不同电平的参考电压。 在多个比较器部分中,第一晶体管的集电极和第二晶体管的集电极根据预定规则与负载连接。 还提供了一种用于将模拟输入信号转换为多个码的数字信号的A / D转换器,其包括用于当多个码的数字信号被转换为这种模拟信号时在预定电平上产生检测输出的临界检测比较器 作为溢出或下溢的影响。 A / D转换器包括用于在临界检测比较器的检测输出达到预定电平的情况下强制地控制多位数字信号电平的控制电路。
    • 15. 发明授权
    • Synchronizing signal generator device for television
    • 电视同步信号发生器
    • US4328513A
    • 1982-05-04
    • US140838
    • 1980-04-16
    • Makoto FurihataToyotaka MachidaYuichi Ikemura
    • Makoto FurihataToyotaka MachidaYuichi Ikemura
    • H04N5/067H04N5/06H04N9/45H04N9/64H04N9/46
    • H04N9/642H04N5/06H04N9/45
    • A synchronizing signal generator device for television includes an oscillator circuit which generates a color subcarrier signal, a voltage-controlled oscillator circuit which includes a counter and whose oscillation frequency is controlled by the output signal of the first-mentioned oscillator circuit, a counter which receives an output of the voltage-controlled oscillator circuit, and a decoder which receives an output of the second-mentioned counter. The decoder provides a synchronizing signal for the NTSC, PAL or SECAM format in such a manner that the count numbers of the respective counters are controlled. The synchronizing signal generator device for television also includes various circuits for receiving external synchronizing signals. As a result, the synchronizing signal generator device for television can be synchronized with another synchronizing signal generator device for television.
    • 一种用于电视机的同步信号发生器装置包括产生彩色副载波信号的振荡电路,包括计数器的压控振荡器电路,其振荡频率由前述振荡器电路的输出信号控制,计数器接收 压控振荡器电路的输出,以及接收第二个计数器的输出的解码器。 解码器以这样的方式提供NTSC,PAL或SECAM格式的同步信号,以便控制各个计数器的计数。 用于电视的同步信号发生器装置还包括用于接收外部同步信号的各种电路。 结果,用于电视的同步信号发生器装置可以与用于电视的另一个同步信号发生器装置同步。
    • 16. 发明授权
    • Phase locked loop circuit and a picture reproducing device
    • 锁相环电路和图像再现装置
    • US5982239A
    • 1999-11-09
    • US11225
    • 1998-02-09
    • Fumihiro TakahashiShikiko NachiNorihisa YamamotoMakoto Furihata
    • Fumihiro TakahashiShikiko NachiNorihisa YamamotoMakoto Furihata
    • H03L7/087H03L7/089H03L7/091H03L7/14H03L7/191H03L7/08
    • H03L7/0893H03L7/087H03L7/14H03L7/148H03L7/191H04N5/44504H03L7/0891H03L7/091
    • A first phase comparator 22 of digital type and a second phase comparator 32 of sampling type are provided. Near a lock phase, an output current Iout2 is fed from the second phase comparator 32 to a voltage-controlled oscillator 14 through a change-over switch 40. In other phases, an output current Iout1 is fed thereto from the first phase comparator 22. When a reference signal fs is missing, a complementing circuit 50 complements a pulse to at least the reference signal fs input to the first phase comparator 22. A noise detecting/removing circuit 60 detects and removes noise from the reference signals fs, permits the reference signals fs to be fed to the first and second phase comparators 22 and 23, and halts the operations of the two phase comparators 22 and 32 for only a predetermined period of time after the noise has been detected. Therefore, the PLL circuit stably operates and characters are clearly displayed on a screen even when the noise is contained in the horizontal synchronizing signals of the video signals or even when the signals are missing.
    • PCT No.PCT / JP96 / 02190 Sec。 371日期:1998年2月9日 102(e)1998年2月9日PCT PCT 1996年8月5日PCT公布。 出版物WO97 / 07594 日期1997年2月27日提供了数字型的第一相位比较器22和采样类型的第二相位比较器32。 接近锁相位时,输出电流Iout2通过转换开关40从第二相位比较器32馈送到压控振荡器14.在其它相位,输出电流Iout1从第一相位比较器22输入。 当参考信号fs丢失时,补码电路50将脉冲补充至至少输入到第一相位比较器22的参考信号fs。噪声检测/去除电路60从参考信号fs检测和去除噪声,允许参考 信号fs被馈送到第一和第二相位比较器22和23,并且在已经检测到噪声之后仅在预定的时间段内停止两个相位比较器22和32的操作。 因此,即使噪声被包含在视频信号的水平同步信号中,或即使在信号丢失的情况下,PLL电路也能够稳定地进行操作,并将画面清楚地显示在屏幕上。
    • 17. 发明授权
    • FM Detector using monostable multivibrators
    • FM检测器采用单稳态多谐振荡器
    • US4504792A
    • 1985-03-12
    • US462961
    • 1983-02-01
    • Makoto Furihata
    • Makoto Furihata
    • H03D3/00H03D3/04H03K9/06
    • H03D3/04
    • A frequency modulation detector is constructed of a plurality of monostable multivibrators, an analog and a low-pass filter. One of the plurality of monostable multivibrators generates a first train of pulses of predetermined pulse width in response to the rising edges of an input signal, while another of the plurality of monostable multivibrators generates a second train of pulses of the same predetermined pulse width in response to the falling edges of the input signal. The first and second trains of pulses are applied to the analog adder, an output signal of which is applied to an input terminal of the low-pass filter. An FM detection output signal is provided from an output terminal of the low-pass filter. By this means the high-frequency components and carrier components of the input to be contained in the FM detection output signal are substantially reduced.
    • 频率调制检测器由多个单稳态多谐振荡器,模拟和低通滤波器构成。 多个单稳态多谐振荡器中的一个响应于输入信号的上升沿产生预定脉冲宽度的第一列脉冲,而多个单稳态多谐振荡器中的另一个产生相同预定脉冲宽度的第二脉冲序列作为响应 到输入信号的下降沿。 第一和第二列脉冲被施加到模拟加法器,其输出信号被施加到低通滤波器的输入端。 从低通滤波器的输出端子提供FM检测输出信号。 通过这种方式,将要包含在FM检测输出信号中的输入的高频分量和载波分量显着降低。
    • 18. 发明授权
    • Chroma signal gain control circuit
    • 色度信号增益控制电路
    • US4349834A
    • 1982-09-14
    • US237898
    • 1981-02-25
    • Kenichi TonomuraKyoichi TakahashiMakoto Furihata
    • Kenichi TonomuraKyoichi TakahashiMakoto Furihata
    • H04N9/68H04N9/535
    • H04N9/68
    • A chroma signal gain control circuit is constructed to include a first band pass amplifier, a second band pass amplifier, a burst gate circuit, a switch circuit and an ACC detecting circuit. The output signal of the first band pass amplifier is fed to the input of the second band pass amplifier, the output signal of which is fed to the input of the burst gate circuit. The switch circuit selectively transmits either the output of the burst gate circuit or the output of the second band pass amplifier to the ACC detecting circuit. The gain of the first band pass amplifier is controlled by feeding the detected output of the ACC detecting circuit to the first band pass amplifier. In order to prevent over-saturation in case the level ratio (C/B) between the color burst signal and the chroma signal exceeds a predetermined value, the switch circuit will selectively transmit the output of the second band pass amplifier to the ACC detecting circuit.
    • 色度信号增益控制电路被构造成包括第一带通放大器,第二带通放大器,脉冲串门电路,开关电路和ACC检测电路。 第一带通放大器的输出信号被馈送到第二带通放大器的输入,其输出信号被馈送到脉冲串门电路的输入端。 开关电路选择性地将突发门电路的输出或第二带通放大器的输出传输到ACC检测电路。 通过将检测到的ACC检测电路的输出馈送到第一带通放大器来控制第一带通放大器的增益。 为了在色同步信号和色度信号之间的电平比(C / B)超过预定值的情况下防止过饱和,开关电路将选择性地将第二带通放大器的输出传送到ACC检测电路 。