Communication apparatus and communication system
AssigneeAlpine Electronics, Inc.
InventorToshikatsu Murakami
Life of this patent
Estimating the term…
Abstract
A communication apparatus electrically connected to a first antenna through a first cable includes a second antenna that is substitutable for the first antenna; a first ground portion to which a second cable for grounding the first antenna is connected; an antenna detection circuit to detect a state of the first antenna; an antenna switching unit to switch from the first antenna to the second antenna, in a case where the antenna detection circuit detects an abnormality of the first antenna; and an insulating portion to insulate the first ground portion from a second ground portion around the first ground portion, in a case where the antenna detection circuit detects an abnormality of the first antenna.
Claims20
A communication apparatus electrically connected to a first antenna through a first cable, comprising:
- a second antenna configured to be substitutable for the first antenna;
- a first ground portion to which a second cable for grounding the first antenna is connected;
- an antenna detection circuit configured to detect a state of the first antenna;
- an antenna switching unit configured to switch from the first antenna to the second antenna, in a case where the antenna detection circuit detects an abnormality of the first antenna;
- and
- an insulating portion configured to insulate the first ground portion from a second ground portion around the first ground portion, in a case where the antenna detection circuit detects an abnormality of the first antenna.
A communication system in which a first antenna and a communication apparatus are electrically connected through a first cable, comprising:
- a second antenna configured to be substitutable for the first antenna;
- a first ground portion to which a second cable for grounding the first antenna is connected;
- an antenna detection circuit configured to detect a state of the first antenna;
- an antenna switching unit configured to switch from the first antenna to the second antenna, in a case where the antenna detection circuit detects an abnormality of the first antenna;
- and
- an insulating portion configured to insulate the first ground portion from a second ground portion around the first ground portion, in a case where the antenna detection circuit detects an abnormality of the first antenna.
A communication apparatus electrically connected to a first antenna through a first cable, comprising:
- a second antenna;
- a first ground portion to which a second cable for grounding the first antenna is connected;
- a second ground portion for grounding the second antenna, where the second ground portion is insulated from the first ground portion;
- an antenna detection circuit configured to detect a state of the first antenna;
- an antenna switching unit configured to switch from the first antenna to the second antenna, in a case where the antenna detection circuit detects an abnormality of the first antenna;
- and
- a connection state switching unit configured to switch between a state in which the first ground portion and the second ground portion are electrically connected and a state in which the first ground portion and the second ground portion are electrically disconnected.
Dependencies are inferred from the claim text.