Telecommunications – Carrier wave repeater or relay system – Portable or mobile repeater
Reexamination Certificate
1998-11-06
2001-04-17
Eisenzopf, Reinhard (Department: 2682)
Telecommunications
Carrier wave repeater or relay system
Portable or mobile repeater
C455S562100
Reexamination Certificate
active
06219527
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a radio apparatus such as a satellite personal handy-phone, in which an antenna stored in a case thereof is to be pulled out of the case for communication.
A conventional radio transmitter adopts a structure in which an antenna is stored in a storage portion provided in a main body case so as to enhance portability. The antenna is pulled out of the storage portion in the main body case only when communication is carried out. The antenna is stored in the storage portion in the main body case when communication is not carried out.
A radio apparatus having such a structure for storing the antenna is disclosed in Japanese Unexamined Patent Publication No. 6-303295.
In the conventional radio transmitter, the length of the cable connected to the antenna in the main body case is set to be larger than necessary so as to allow pulling-out/storing of the antenna. As a result, there occurs such a problem that the cable is moved around with the motion of the antenna.
Additionally, the cable is deformed into various shapes when the antenna is pulled out of or stored in the case. Therefore, there is a problem in which the cable in the main body case may hit or catch on other parts and damage the parts provided in the main body case or the cable itself
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a radio apparatus capable of restricting various deformations and motions of a cable connected to an antenna when the antenna is pulled out or stored.
It is another object of the present invention to provide a radio apparatus of the type described, in which any part or cable in the main unit case is never damaged.
It is still another object of the present invention to provide a radio apparatus of the type described, in which slackening is prevented as regards the cable.
Other objects of the present invention will be clear as the description proceeds.
According to the present invention, there is provided a radio apparatus comprising a rod-like antenna with an extension axis and a casing which has a storage portion for storing the antenna so as to be movable in a particular direction parallel to the extension axis. The radio apparatus further comprises a cable, one end of which is electrically and mechanically connected to the antenna and the other end of which is fixed to an electrical part contained in the casing, and urging means engaged with the cable for urging the cable to prevent the cable from slackening.
REFERENCES:
patent: 4393383 (1983-07-01), Yamashita
patent: 4717923 (1988-01-01), Kimura
patent: 4912820 (1990-04-01), Bregier
patent: 5243355 (1993-09-01), Emmert et al.
patent: 5511120 (1996-04-01), Hirata et al.
patent: 5777586 (1998-07-01), Luxon et al.
patent: 5850612 (1998-12-01), Kulberg et al.
patent: 5852422 (1998-12-01), Imanishi
patent: 5950116 (1999-09-01), Baro
patent: 6052567 (2000-04-01), Ito et al.
patent: 6-303295 (1994-10-01), None
Eisenzopf Reinhard
Mehrpour N
NEC Corporation
Ostrolenk Faber Gerb & Soffen, LLP
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