 International call back technique with reduced post dialing delay |
| FIG. 1 illustrates a system 10, in accordance with the invention, for permitting a caller 12, ... |
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Oscillator and communications device
| Details |
Inventors: Fujii, Yasutaka; Sakamoto, Koichi; Yamashita, Sadao; Iio, Kenichi; Kajikawa, Takehisa;
Assignee: Murata Manufacturing Co., Ltd. (JP)
Primary Examiner: Tsang; Fan
Assistant Examiner: Jackson; Blane J.
Attorney, Agent or Firm: Ostrolenk, Faber, Gerb & Soffen, LLP
An oscillator comprises a dielectric resonator, a circuit board, and an adjustment mechanism for adjusting the relative positional relationship between the dielectric resonator and the circuit board; the dielectric resonator having a dielectric substrate, electrodes provided on two opposite faces of the dielectric substrate, and electrode removal portions provided at predetermined positions on the electrodes; and the adjustment mechanism comprising screws and springs for moving the dielectric resonator. |
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DETAILED DESCRIPTION The oscillator of the present invention has been realized in consideration of the problems described above.
The oscillator of the present invention comprises a dielectric resonator, a circuit board, and an adjustment mechanism for changing the relative positional relationship of the dielectric resonator and the circuit board; the dielectric resonator comprising a dielectric substrate, electrodes, provided on two opposite faces of the dielectric substrate, and electrode removal portions, provided at predetermined positions on the electrodes; and the adjustment mechanism comprising a force-applying unit and a movable structure for moving the dielectric resonator, and a force-applying unit and a movable structure for moving the circuit board.
Preferably, the movable structure for moving the dielectric resonator is a concave portion larger than the dielectric resonator, provided in a case for storing the dielectric resonator, the concave portion having a two-level structure for providing a vacant portion around the electrode removal portions of the dielectric resonator.
The force-applying unit for moving the dielectric resonator comprises screws.
Alternatively, the force-applying unit for moving the dielectric resonator comprises screws and elastic members.
In a preferable arrangement of the invention, the movable structure for moving the circuit board comprises oval holes for inserting terminal pins.
The oscillator may use a force-applying unit and a movable structure for moving the dielectric resonator in one axial direction parallel to a horizontal direction, and use a force-applying unit and a movable structure for moving the dielectric resonator at a right angle to the axial direction.
Alternatively, the arrangement may be such that the oscillator uses a force-applying unit and a movable structure for moving the dielectric resonator in one axial direction parallel to a horizontal direction, and uses a force-applying unit and a movable structure for moving the circuit board at a right angle to the axial direction
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