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    • 3. 发明授权
    • Sound field expansion system for a video tape recorder
    • 用于录像机的声场扩展系统
    • US4812921A
    • 1989-03-14
    • US933915
    • 1986-11-24
    • Takamichi MitsuhashiMasao Tomioka
    • Takamichi MitsuhashiMasao Tomioka
    • G11B5/027G11B20/00H04N5/92H04N5/928H04S1/00H04N5/782H04R5/00
    • H04N5/9202G11B20/00992
    • A sound field expansion system applicable to a magnetic recording and reproducing apparatus (VTR) which can expand the sound field in a simple construction. In the sound field expansion system, a circuit for virtually forming two comb filter characteristics is provided by adding a first audio signal and a second audio signal delayed by a predetermined interval of time with respect to the first audio signal and adding the first audio signal which is passed through a phase shift circuit which shifts the phase of the first audio signal so that the reproduced sound field can remarkably be expanded. Furthermore, a correction circuit for providing a predetermined frequency characteristic for the first or second audio signal is installed so that an acoustic image having a desired frequency band can be positioned. The first and second audio signals may be monaural or stereophonic and are derived from demodulations of audio frequency-modulated (AFM) signal recorded on a common track of a magnetic tape together with a one-field video signal in a frequency division multiplex mode and time-axis-compressed pulse-code-modulated audio (PCM) signal recorded on the common track together with the one-field video signal in a time share mode.
    • 一种适用于能够以简单结构扩展声场的磁记录和再现装置(VTR)的声场扩展系统。 在声场扩展系统中,通过将相对于第一音频信号延迟了预定时间间隔的第一音频信号和第二音频信号相加来提供用于虚拟形成两个梳状滤波器特性的电路,并且添加第一音频信号, 通过相移电路,该相移电路使第一音频信号的相位移位,使得再现的声场可以显着地扩展。 此外,安装用于为第一或第二音频信号提供预定频率特性的校正电路,使得可以定位具有期望频带的声像。 第一和第二音频信号可以是单声道或立体声的,并且是从频分多路复用模式和时间的一场视频信号以及记录在磁带的公共磁道上的音频调频(AFM)信号的解调得出的 在时间共享模式下与单场视频信号一起记录在公共轨道上的经轴压缩的脉码调制音频(PCM)信号。
    • 6. 发明授权
    • Mounting system
    • 安装系统
    • US06293007B1
    • 2001-09-25
    • US08865229
    • 1997-05-29
    • Tokio KuriyamaMasao Tomioka
    • Tokio KuriyamaMasao Tomioka
    • H05K334
    • H05K13/08H05K13/04Y10T29/49131Y10T29/49133Y10T29/49137Y10T29/49144Y10T29/5137Y10T29/53013Y10T29/53052Y10T29/53187Y10T29/53261
    • In a mounting system including a loading station having a transport conveyer for conveying printed circuit boards, a mounting machine for fabricating circuit devices by attaching electronic assemblies on printed circuit boards supplied thereto from said loading station, and an unloading station having a transport conveyor for conveying circuit devices supplied thereto from the mounting machine, the loading station includes a discriminating device for discriminating the kind or type of printed circuit boards and for generating a discrimination signal for instructing the kind or type of the printed circuit board. A mounting process in the mounting machine is selectively set by the discrimination signal from the discriminating device. According to this mounting system, even when many kinds of circuit devices are fabricated by many kinds of printed circuit boards, mounting processes can be successively carried out by one mounting line.
    • 在包括具有用于输送印刷电路板的运输输送机的装载站的安装系统中,安装机器用于通过将电子组件附接在从所述装载站供应到其上的印刷电路板上来制造电路装置,以及卸载站,具有用于输送的输送输送机 所述装载站包括鉴别装置,用于识别印刷电路板的种类或类型,并产生用于指示印刷电路板的种类或种类的鉴别信号。 通过来自识别装置的鉴别信号选择性地设置安装机中的安装过程。 根据这种安装系统,即使由多种印刷电路板制造多种电路装置,也可以通过一条安装线连续进行安装工序。