RADIO EQUIPMENT
A radio equipment, wherein an attenuator (10) is inserted between antennas (91, 92) and a radio module (2), and output and input sensitivities are raised and lowered simultaneously so as to keep the balance of a radio covering range with an audible range at a constant, and the antenna (91) and the a...
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Main Authors | , , , |
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Format | Patent |
Language | English French Japanese |
Published |
25.04.2002
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Abstract | A radio equipment, wherein an attenuator (10) is inserted between antennas (91, 92) and a radio module (2), and output and input sensitivities are raised and lowered simultaneously so as to keep the balance of a radio covering range with an audible range at a constant, and the antenna (91) and the antenna (92) with attenuator are switched over by a switch (8) to increase and decrease the radio coverage range and audible range while keeping the balance of the dynamic radio coverage range with the audible range.
L'invention concerne un équipement radio. Un atténuateur (10) est inséré entre des antennes (91, 92) et un module radio (2). Des sensibilités de sortie et d'entrée sont simultanément augmentées et abaissées pour maintenir constant l'équilibre de la gamme de couverture radio avec une gamme audible. L'antenne (91) et l'antenne (92) avec l'atténuateur sont commutées par un commutateur (8) pour augmenter et réduire la gamme de couverture radio et la gamme audible tout en gardant l'équilibre de la gamme de couverture radio dynamique avec la gamme audible. |
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AbstractList | A radio equipment, wherein an attenuator (10) is inserted between antennas (91, 92) and a radio module (2), and output and input sensitivities are raised and lowered simultaneously so as to keep the balance of a radio covering range with an audible range at a constant, and the antenna (91) and the antenna (92) with attenuator are switched over by a switch (8) to increase and decrease the radio coverage range and audible range while keeping the balance of the dynamic radio coverage range with the audible range.
L'invention concerne un équipement radio. Un atténuateur (10) est inséré entre des antennes (91, 92) et un module radio (2). Des sensibilités de sortie et d'entrée sont simultanément augmentées et abaissées pour maintenir constant l'équilibre de la gamme de couverture radio avec une gamme audible. L'antenne (91) et l'antenne (92) avec l'atténuateur sont commutées par un commutateur (8) pour augmenter et réduire la gamme de couverture radio et la gamme audible tout en gardant l'équilibre de la gamme de couverture radio dynamique avec la gamme audible. |
Author | TAKITA, ISAO UMEMURA, MASAYA HARA, TSUTOMU INAGAKI, YUKIHIDE |
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DocumentTitleAlternate | EQUIPEMENT RADIO |
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Notes | Application Number: WO2001JP09210 |
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RelatedCompanies | HITACHI, LTD TAKITA, ISAO UMEMURA, MASAYA HARA, TSUTOMU INAGAKI, YUKIHIDE |
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Snippet | A radio equipment, wherein an attenuator (10) is inserted between antennas (91, 92) and a radio module (2), and output and input sensitivities are raised and... |
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SubjectTerms | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION |
Title | RADIO EQUIPMENT |
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