Communication system and search and rescue terminal for vessels
First Claim
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1. An apparatus for providing radio communication service in a vessel, comprising:
- at least one radio signal transmission and reception unit which provides two-way communication with a coastal radio communication station using at least one of medium frequency, high frequency, and very high frequency;
at least one modulation and demodulation unit connected to the radio signal transmission and reception unit;
a location information receiving unit for receiving location information;
a plurality of frequency conversion units, for processing two-way communication with a search and rescue terminal placed on the same vessel as where the apparatus for providing radio communication service is placed, wherein the number of frequency conversion units corresponds to the number of channels of the search and rescue terminals;
at least one signal processing unit configured to process a signal from/to the frequency conversion unit; and
a main control unit connected between the signal processing unit and the modulation and demodulation unit, which is configured to transmit location information received from the location information receiving unit to the search and rescue terminal through the signal processing unit, and control, upon request of the search and rescue terminal, connection between the signal processing unit and the modulation and demodulation unit which is available,wherein the search and rescue terminal is configured to communicate emergency rescue signals to a rescue satellite in case of emergencies.
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Abstract
A communication service equipment and a search and rescue terminal device for vessels that are set on board to provide radio communication service including at least one radio signal transmission and reception units, a modulation and demodulation unit, a location information receiving unit, a plurality of frequency conversion unit, signal processing units each connected to the frequency conversion unit, a main control unit, and control the signal processing unit.
10 Citations
8 Claims
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1. An apparatus for providing radio communication service in a vessel, comprising:
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at least one radio signal transmission and reception unit which provides two-way communication with a coastal radio communication station using at least one of medium frequency, high frequency, and very high frequency; at least one modulation and demodulation unit connected to the radio signal transmission and reception unit; a location information receiving unit for receiving location information; a plurality of frequency conversion units, for processing two-way communication with a search and rescue terminal placed on the same vessel as where the apparatus for providing radio communication service is placed, wherein the number of frequency conversion units corresponds to the number of channels of the search and rescue terminals; at least one signal processing unit configured to process a signal from/to the frequency conversion unit; and a main control unit connected between the signal processing unit and the modulation and demodulation unit, which is configured to transmit location information received from the location information receiving unit to the search and rescue terminal through the signal processing unit, and control, upon request of the search and rescue terminal, connection between the signal processing unit and the modulation and demodulation unit which is available, wherein the search and rescue terminal is configured to communicate emergency rescue signals to a rescue satellite in case of emergencies. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A search and rescue apparatus set up in a vessel and configured to communicate with a radio communication service equipment providing two-way communication with a coastal radio station, comprising:
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a channel selecting unit for selecting a radio channel among a plurality of radio channels; a radio signal transmitting and receiving unit for performing two-way communication with the radio communication service equipment placed on the same vessel as where the search and rescue apparatus is placed through a radio channel selected by the channel selecting unit; a storing unit for storing program and location information received from the radio communication service equipment via the signal transmission and reception unit; and a main control unit for requesting a service to the radio communication service equipment, processing signals received from the signal transmission and reception unit into voice signals, and storing the location information, wherein the search and rescue terminal is configured to communicate emergency rescue signals to a rescue satellite in case of emergencies. - View Dependent Claims (8)
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Specification