发明名称 |
REGULATEUR DE NIVEAU D'EMISSION FONCTIONNANT PAR FREQUENCES DISCRETES POUR LIAISON POINT A POINT |
摘要 |
A radio transmitter-receiver including means for automatically adjusting the transmission level so as to bring the reception level in an associated transmitter-receiver receiving such transmission into a range limited at a lower end by a reference reception level by means of an attenuator providing a stepped variable attenuation level and controlled by a signal frequency received from the associated transmitter-receiver; and means for transmitting a signal frequency selected from a set of such frequencies in accordance with the level at which a transmission from the associated transmitter-receiver is received by means of a selector device comprising a set of threshold circuits corresponding to thresholds between said reference reception level and a saturation level limiting the range at an upper end. |
申请公布号 |
BE756446(A1) |
申请公布日期 |
1971.03.22 |
申请号 |
BED756446 |
申请日期 |
1970.09.22 |
申请人 |
C.I.T.-COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS, 12 RUE DE LA BAUME, PARIS 8EME (FRANCE), |
发明人 |
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分类号 |
H04B7/26;H04B1/40;H04B7/005 |
主分类号 |
H04B7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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