Communication system using frequency according to security or transmission distance
The invention provides a communication system using a frequency determined according to information security protection or a transmission distance of a signal is provided. A local area communication requiring information security protection uses a frequency less than a predetermined frequency, and a...
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| Main Authors | , , , , , |
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| Format | Patent |
| Language | Chinese English |
| Published |
07.09.2011
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| Subjects | |
| Online Access | Get full text |
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| Abstract | The invention provides a communication system using a frequency determined according to information security protection or a transmission distance of a signal is provided. A local area communication requiring information security protection uses a frequency less than a predetermined frequency, and a local or wide area communication requiring no information security protection uses a frequency greater than predetermined frequency, thereby providing an effective communication environment based on information security protection, a communication distance, and communication characteristics satisfying frequency characteristics of a transmission medium, and accordingly increasing a communication field. |
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| AbstractList | The invention provides a communication system using a frequency determined according to information security protection or a transmission distance of a signal is provided. A local area communication requiring information security protection uses a frequency less than a predetermined frequency, and a local or wide area communication requiring no information security protection uses a frequency greater than predetermined frequency, thereby providing an effective communication environment based on information security protection, a communication distance, and communication characteristics satisfying frequency characteristics of a transmission medium, and accordingly increasing a communication field. |
| Author | KANG SUNG-WEON HYOUNG CHANG-HEE KIM JIN-KYUNG SUNG JIN-BONG HWANG JUNG-HWAN PARK DUCK-GUN |
| Author_xml | – fullname: SUNG JIN-BONG – fullname: PARK DUCK-GUN – fullname: HWANG JUNG-HWAN – fullname: KANG SUNG-WEON – fullname: HYOUNG CHANG-HEE – fullname: KIM JIN-KYUNG |
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| Notes | Application Number: CN2006852408 |
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| PublicationDateYYYYMMDD | 2011-09-07 |
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| RelatedCompanies | KOREA ELECTRONICS AND TELECOMMUNICATIONS RESEARCHINSTITUTE |
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| Snippet | The invention provides a communication system using a frequency determined according to information security protection or a transmission distance of a signal... |
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| SubjectTerms | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION |
| Title | Communication system using frequency according to security or transmission distance |
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