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    • 1. 发明授权
    • Record stylus for capacitance disks
    • 记录电容磁盘的触笔
    • US4503529A
    • 1985-03-05
    • US357355
    • 1982-03-12
    • Yoshiyo WadaKunio GotoHideaki Takehara
    • Yoshiyo WadaKunio GotoHideaki Takehara
    • G11B9/07G11B9/06
    • G11B9/075
    • For detection of signals recorded in the form of minute pits along tracks as capacitance variations, a record stylus is disclosed as comprising a shank having a portion of cross-sectional area decreasing toward one end of the stylus. A diamond, partially embedded in the shank, has a decreasing cross-sectional area toward said end of the stylus as a continuation of the decreasing cross-section of the shank. The bottom and rear face of the diamond are inclined so that the adjacent angle therebetween is smaller than 90 degrees. An electrode attached to the rear face of the diamond extends from the bottom of the diamond toward the other end of the stylus. The electrode is thus inclined in a direction opposite to the direction of movement of the recording medium to provide less concentration of electric lines of force on the rear bottom edge thereof.
    • 为了检测作为电容变化沿着轨道以微小凹坑的形式记录的信号,公开了一种记录触针,包括具有朝向触针的一端减小的横截面面积的一部分的柄。 部分地嵌入在柄中的金刚石具有朝向所述触针的所述端部的横截面积减小,作为所述柄的横截面减小的延续。 金刚石的底面和背面倾斜,使得它们之间的相邻角度小于90度。 附着在金刚石背面的电极从金刚石的底部向触针的另一端延伸。 因此,电极在与记录介质的移动方向相反的方向上倾斜,以在其后底边缘上提供较少的电力线浓度。
    • 2. 发明授权
    • Capacitance detection type record stylus having a conductive shank
    • 具有导电柄的电容检测型记录笔
    • US4488281A
    • 1984-12-11
    • US357354
    • 1982-03-12
    • Hideaki TakeharaYoshiyo WadaKunio GotoKeiji Segawa
    • Hideaki TakeharaYoshiyo WadaKunio GotoKeiji Segawa
    • G11B9/07G11B9/00
    • G11B9/075
    • A capacitance detection type record stylus comprises a conductive shank and a diamond partially embedded in the shank so that the diamond projects downwardly from one end of the shank. The shank is formed with a bottom face for making slidable contact with the disk record. The shank and diamond are formed with a pair of common rear faces inclined with respect to the axis of the stylus to define an electrode forming face therebetween which extends from the bottom face of the diamond partially into the shank. The electrode forming face is inclined at an acute angle with respect to the axis so that the lower end of the electrode forming face is located at a point forward with respect to the upper end thereof and subtends at the lower end thereof at such an angle that the diamond can be lapped without causing defects to occur on the lapped surfaces. The electrode forming face is entirely covered by a conductive layer so that the latter establishes electrical connection with the shank to allow signals detected by the electrode to pass through the shank to an external circuit.
    • 电容检测型记录笔包括导电柄和部分嵌入柄中的金刚石,使得金刚石从柄的一端向下突出。 柄形成有用于与盘记录滑动接触的底面。 柄和金刚石形成有相对于触针的轴线倾斜的一对公共后表面,以在其间限定一个从金刚石的底面部分延伸到柄中的电极形成面。 电极形成面相对于轴线倾斜成锐角,使得电极形成面的下端位于相对于其上端向前的点,并且在其下端处以与下端相对的角度 可以研磨金刚石而不会在研磨表面上发生缺陷。 电极形成面完全由导电层覆盖,使得后者与柄建立电连接,以允许由电极检测到的信号通过柄到外部电路。
    • 4. 发明授权
    • Stylus for reproducing capacitive videodisc
    • 用于再现电容式视频盘的触控笔
    • US4273967A
    • 1981-06-16
    • US31035
    • 1979-04-18
    • Yoshiyo WadaKunio GotoHisao Kinjo
    • Yoshiyo WadaKunio GotoHisao Kinjo
    • G11B3/44G11B3/46G11B9/07H04R9/12H04N5/80
    • G11B3/46G11B3/44G11B9/075H04R9/12
    • A reproducing stylus traces a track of a recording medium, in which track an information signal is recorded as variations of geometrical shape, and reproduces as variations in capacitance the information signal thus recorded. The reproducing stylus comprises a reproducing stylus main structure having a tip part with a flat sliding contact face for slidingly contacting a plurality of track of the recording medium at a time, and an electrode secured to the reproducing stylus main structre at the tip part thereof and adapted to trace one track and reproduce the information signal as the variations in capacitance in accordance with the variations in geometrical shape. The electrode has over a specific distance over the tip part of the stylus main structure from the extreme tip thereof, a constant width in the width direction of the track which is less than the width of the track. The extreme tip of the electrode has a flat or linear tip end contacting the track.
    • 再现触笔跟踪记录介质的轨道,在该轨道中,信息信号被记录为几何形状的变化,并且作为如此记录的信息信号的电容变化再现。 再现记录笔包括一个再现触控笔主体结构,其具有一个尖端部分,该尖端部分具有平滑的滑动接触面,用于一次滑动地接触该记录介质的多个轨迹;以及一个电极,其固定在其尖端部分处的再现触针主结构, 适于跟踪一个轨道并根据几何形状的变化再现信息信号作为电容的变化。 电极从触头的顶端超过触针主结构的尖端部分的特定距离,轨道的宽度方向上的宽度小于轨道的宽度。 电极的尖端具有接触轨道的平坦或线性的尖端。
    • 5. 发明授权
    • Stylus for reproducing information signals recorded on a recording medium
    • 用于再现记录在记录介质上的信息信号的触笔
    • US4497052A
    • 1985-01-29
    • US221922
    • 1980-12-30
    • Yoshiyo WadaKunio GotoHisao Kinjo
    • Yoshiyo WadaKunio GotoHisao Kinjo
    • G11B3/44G11B3/46G11B9/07H04R9/12H04N5/80
    • H04R9/12G11B3/44G11B3/46G11B9/075
    • A reproducing stylus traces a track of a recording medium, in which track an information signal is recorded as variations of geometrical shape, and reproduces as variations in capacitance the information signal thus recorded. The reproducing stylus comprises a reproducing stylus main structure having a tip part with a flat sliding contact face for slidingly contacting at least one track of the recording medium at a time, and an electrode secured to the reproducing stylus main structure at the tip part thereof and adapted to trace one track and reproduce the information signal as the variations in capacitance in accordance with the variations in geometrical shape. The electrode has over a specific distance over the tip part of the stylus main structure from the extreme tip thereof, a width in the width direction of the track which is less than said width of the track. The extreme tip of the electrode having a flat or linear tip end contacting the track.
    • 再现触笔跟踪记录介质的轨道,在该轨道中,信息信号被记录为几何形状的变化,并且作为如此记录的信息信号的电容变化再现。 再现触针包括具有具有平滑的滑动接触面的顶端部分的再现触笔主结构,用于一次滑动地接触记录介质的至少一个轨道,以及在其尖端处固定到再现触笔主结构的电极,以及 适于跟踪一个轨道并根据几何形状的变化再现信息信号作为电容的变化。 电极从其尖端超过触针主结构的尖端部分的特定距离,轨道的宽度方向上的宽度小于轨道的宽度。 电极的尖端具有接触轨道的平坦或线性尖端。
    • 7. 发明授权
    • Stylus for reproducing capacitive videodisc
    • 用于再现电容式视频盘的触控笔
    • US4199782A
    • 1980-04-22
    • US852366
    • 1977-11-16
    • Yoshiyo WadaKunio GotoHisao Kinjo
    • Yoshiyo WadaKunio GotoHisao Kinjo
    • G11B3/44G11B3/46G11B9/07H04R9/12H04N5/80
    • G11B9/075G11B3/44G11B3/46H04R9/12
    • A reproducing stylus traces a track of a recording medium, in which track an information signal is recorded as variations of geometrical shape, and reproduces as variations in capacitance the information signal thus recorded. The reproducing stylus comprises a reproducing stylus main structure having a tip part with a flat sliding contact face for slidingly contacting at least one track of the recording medium at a time, and an electrode secured to the reproducing stylus main structure at the tip part thereof and adapted to trace one track and reproduce the information signal as the variations in capacitance in accordance with the variations in geometrical shape. The electrode has over a specific distance over the tip part of the stylus main structure from the extreme tip thereof, a width in the width direction of the track which is less than the width of the track. The extreme tip of the electrode has a flat or linear tip end contacting the track.
    • 再现触笔跟踪记录介质的轨道,在该轨道中,信息信号被记录为几何形状的变化,并且作为如此记录的信息信号的电容变化再现。 再现触针包括具有具有平滑的滑动接触面的顶端部分的再现触笔主结构,用于一次滑动地接触记录介质的至少一个轨道,以及在其尖端部分处固定到再现触针主结构的电极, 适于跟踪一个轨道并根据几何形状的变化再现信息信号作为电容的变化。 电极从其尖端超过触针主结构的尖端部分的特定距离,轨道的宽度方向上的宽度小于轨道的宽度。 电极的尖端具有接触轨道的平坦或线性的尖端。