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    • 3. 发明授权
    • Capacitor trimming system in a quartz-crystal oscillator
    • 石英晶体振荡器中的电容修整系统
    • US4346537A
    • 1982-08-31
    • US97900
    • 1979-11-27
    • Sho MasujimaShoichi Iwaya
    • Sho MasujimaShoichi Iwaya
    • G04D7/12G04G3/00H01G4/255H03B5/32H03H3/04H03H9/05H03L7/00B24C3/32H01G1/015
    • H01G4/255G04D7/1257G04G3/00H03B5/32H03L7/00Y10T29/49004
    • A capacitor trimming system for a quartz-crystal oscillator in a watch and/or a clock for providing a punctual watch and/or a clock has been found. The system comprises an oscillation circuit including at least a quartz-crystal piece, a trimmer capacitor for adjusting the oscillating frequency of the quartz-crystal piece, a semiconductor electronic circuit for operating said quartz-crystal piece, and apparatus for adjusting automatically the trimmer capacitor so that the oscillating frequency becomes the same as the desired reference frequency. The trimmer capacitor comprises of at least a fixed outer trimming electrode, an inner common electrode fixed parallel to said trimming electrode and a dielectric body sandwiched between the two electrodes. The trimming electrode is disposed in the air for enabling the trimming of the area of the trimming electrode, and the trimming electrode has a coarse adjustment portion parallel and aligned with said common electrode and a fine adjustment portion attached to the same plane of that of the coarse adjustment portion but outside of the common electrode. The oscillation frequency of the quartz-crystal piece is automatically picked up and the frequency is compared with the desired reference frequency, and according to the result of the comparison, the trimming electrode is trimmed so that the oscillating frequency becomes the desired reference frequency. The trimming is carried out first for the coarse trimming portion, and secondly for the fine adjustment portion.
    • 已经发现用于钟表中的石英晶体振荡器和/或用于提供准时钟表和/或时钟的时钟的电容器修整系统。 该系统包括至少包括石英片的振荡电路,用于调节石英晶片的振荡频率的微调电容器,用于操作所述石英晶片的半导体电子电路,以及用于自动调节微调电容器的装置 使得振荡频率变得与期望的参考频率相同。 微调电容器至少包括固定的外修边电极,平行于修整电极固定的内公共电极和夹在两电极之间的电介质体。 修整电极设置在空气中,用于修整修整电极的区域,并且修整电极具有与所述公共电极平行并对齐的粗调部分和与所述修整电极相同的平面附着的微调部分 粗调部分,但在公共电极之外。 自动拾取石英晶片的振荡频率,并将频率与期望的基准频率进行比较,根据比较结果,对修整电极进行修整,使得振荡频率成为期望的基准频率。 首先对粗修整部分进行修整,其次对于微调部分进行修整。
    • 4. 发明授权
    • Chip ceramic capacitor
    • 芯片陶瓷电容器
    • US4312026A
    • 1982-01-19
    • US135094
    • 1980-03-28
    • Shoichi IwayaSho Masujima
    • Shoichi IwayaSho Masujima
    • H01G4/06H01G4/12H01G4/38
    • H01G4/06
    • A chip capacitor which has a substantially rectangular dielectric body having a pair of long sides, a pair of short sides perpendicular to said long sides, a pair of conductive confronting electrodes attached on the surface of the dielectric body so that the electrodes sandwich the dielectric body, a pair of terminals each provided along the related short side of the dielectric body and being electrically connected to the related electrode, and the junction point of each long side and each short side of the dielectric body is recessed. Preferably, the dielectric body is tapered towards the short sides.
    • 一种片状电容器,其具有基本为矩形的电介质体,该绝缘体具有一对长边,与该长边垂直的一对短边,一对导电面对电极,其安装在该电介质体的表面上,使得该电极夹着该介电体 ,一对端子,其沿着电介质体的相关短边设置并电连接到相关电极,并且每个长边和电介质体的每个短边的接合点都是凹进的。 优选地,电介质体朝向短边逐渐变细。