Communications: radio wave antennas – Antennas – With vehicle
Reexamination Certificate
2001-02-20
2002-09-03
Wong, Don (Department: 2821)
Communications: radio wave antennas
Antennas
With vehicle
C343S906000, C439S606000
Reexamination Certificate
active
06445350
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a terminal device for a glass antenna, which is suitable for housing and connecting a four-terminal circuit.
2. Discussion of Background
Conventionally, a metallic terminal device as shown in
FIG. 8
was used for a glass antenna (Japanese Patent No. 2,775,764). The metallic terminal device has a circuit substrate inside thereof, and is fixed by solder
21
to an antenna pattern
20
provided on a window glass sheet
13
. A female connector
22
is attachable to a terminal piece
24
so that a received signal from the antenna pattern
20
is supplied to a receiver (not shown) through a two-terminal circuit provided on the circuit substrate and a cable
23
.
In the conventional technique, however, there was a problem as follows. Since the body of the metallic terminal device was made of metal in its entirety, both legs are short-circuited, and if the circuit provided on the circuit substrate is a four-terminal circuit, the both legs could not be used as separated terminals, whereby two output terminals of the four-terminal circuit could not be connected respectively to two input terminals provided at a side of the receiver.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a terminal device for a glass antenna to eliminate the above-mentioned disadvantage in the conventional technique.
According to the present invention, there is provided a terminal device for a glass antenna comprising a resin-molded body (
1
), metallic legs (
2
), (
3
) provided respectively at both sides of the resin-molded body (
1
), a circuit substrate (
6
) provided in the resin-molded body (
1
), a connector holder (
4
) and connector electrodes (
5
a
), (
5
b
) provided in the connector holder (
4
), the terminal device for a glass antenna being characterized in that the metallic legs (
2
), (
3
) have respectively embedded portions (
2
b
), (
3
b
) embedded in the resin-molded body (
1
); the embedded portions (
2
b
), (
3
b
) are respectively electrically connected to two input terminals of a four-terminal circuit provided on the circuit substrate (
6
); the connector holder (
4
) is provided on a portion of the resin-molded body (
1
) above the embedded portion (
3
b
); and the connector electrodes (
5
a
), (
5
b
) are respectively connected to two output terminals of the four-terminal circuit.
REFERENCES:
patent: 5470238 (1995-11-01), Walden
patent: 5490785 (1996-02-01), Hein et al.
patent: 5619012 (1997-04-01), Casali et al.
patent: 5664964 (1997-09-01), Crofoot et al.
patent: 5926952 (1999-07-01), Ito
patent: 6068523 (2000-05-01), Takahashi
patent: 6142803 (2000-11-01), Bozzer et al.
patent: 3-97209 (1991-10-01), None
patent: 4-59607 (1992-05-01), None
patent: 4-116366 (1992-10-01), None
patent: 5-14029 (1993-01-01), None
patent: 5-15515 (1993-02-01), None
patent: 5-191124 (1993-07-01), None
patent: 5-76107 (1993-10-01), None
patent: 7-7211 (1995-01-01), None
patent: 7-336125 (1995-12-01), None
patent: 8-330835 (1996-12-01), None
patent: 9-76747 (1997-03-01), None
Asahi Glass Company Limited
Dinh Trinh Vo
Wong Don
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