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Patent Searching and Data


Title:
BAR ANTENNA FOR RADIO WAVE CONTROLLED CLOCK
Document Type and Number:
Japanese Patent JP2001102832
Kind Code:
A
Abstract:

To easily control the receiving sensitivity of a bar antenna without being affected by the position of this bar antenna and to facilitate handling by making the structure of the bar antenna for electronic clock easy to handle in an assembly process and facilitating the control of tuning sensitivity.

The main coil 4 and an auxiliary coil 5 are separately wound around a bobbin 3, to which a ferrite bar core 2 is inserted, the auxiliary coil 5 having the number of turns less than that of the main coil 4 is wound movably along the axis of the bobbin 3 and the maximum point of tuning sensitivity is provided by controlling the position of the auxiliary coil 3.


Inventors:
KURODA MORIHIRO
Application Number:
JP31280099A
Publication Date:
April 13, 2001
Filing Date:
September 29, 1999
Export Citation:
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Assignee:
SUMIDA CORP
International Classes:
G04G99/00; H01Q1/24; H01Q1/38; H01Q7/08; H01Q9/14; (IPC1-7): H01Q1/24
Domestic Patent References:
JPS3112545Y1
JPS5914406U1984-01-28
JPH0897616A1996-04-12
JPH0964617A1997-03-07
JPH07303006A1995-11-14
JPS5922503U1984-02-10
JPS4418178Y11969-08-06
JPS4615084Y1