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公开(公告)号：EP1325558A1
公开(公告)日：2003-07-09
申请号：EP01978171.5
申请日：2001-09-20
CPC分类号： G06K19/16 , H03J3/08 , H03J3/28 , H03J5/0272 , H03L7/0805 , H03L7/18
摘要： The invention relates to a resonator configuration and to a resonator tuning method. Said resonator configuration comprises at least one tunable reference resonator, means for tuning the reference resonator to a reference value by using a controlled variable for the reference resonator, at least one tunable circuit resonator, and means for tuning the circuit resonator. The means for tuning the circuit resonator are provided as to permit the controlled variable for the reference resonator to be used as a measure for tuning the circuit resonator.
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公开(公告)号：EP0469898B1
公开(公告)日：1996-03-20
申请号：EP91307052.0
申请日：1991-07-31
申请人： NEC CORPORATION
CPC分类号： H03J3/28 , H03B21/02 , H03D7/163 , H03J1/0008
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公开(公告)号：EP1323232B1
公开(公告)日：2004-07-14
申请号：EP01978176.4
申请日：2001-09-20
CPC分类号： H03L7/18 , H03H3/04 , H03H9/6403 , H03H2009/02196 , H03J3/08 , H03J3/28 , H03J5/0272 , H03L7/0805
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5.发明公开High frequency receiving device, integrated circuit used for same, and TV receiver using them 有权RF接收器和集成电路用于电视接收机和与这些
公开(公告)号：EP1492243A2
公开(公告)日：2004-12-29
申请号：EP04014858.7
申请日：2004-06-24
发明人： Asayama, Sanae , Nakatsuji, Koji , Terao, Atsuhito , Tabata, Yoshihide , Takami, Hideji , Suzuki, Masanori , Kashima, Hirochika
IPC分类号： H04B1/16
CPC分类号： H03J5/244 , H03J3/28 , H03J2200/36
摘要： An oscillation frequency changing means is inserted between a tuner and an oscillator of local oscillator (56) of a high frequency receiving device, and the oscillation frequency changing means, in each frequency band received, changes the oscillation frequency characteristic of local oscillator (56) in relation to the tuning voltage supplied from PLL circuit (78), and operates in accordance with the frequency characteristic of tuning filter (52, 54, 62, 64) to obtain an oscillation signal varied just by a predetermined frequency, thereby making it possible to receive broadband channels of continuous VHF broadcast band and UHF broadcast band.
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公开(公告)号：EP1052772B1
公开(公告)日：2004-04-14
申请号：EP00401203.5
申请日：2000-05-02
申请人： ALCATEL
CPC分类号： H03J3/32 , H03J3/08 , H03J3/28 , H04B2001/0491
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公开(公告)号：EP1323232A1
公开(公告)日：2003-07-02
申请号：EP01978176.4
申请日：2001-09-20
CPC分类号： H03L7/18 , H03H3/04 , H03H9/6403 , H03H2009/02196 , H03J3/08 , H03J3/28 , H03J5/0272 , H03L7/0805
摘要： The invention relates to a component having an acoustically active material, whose acoustic constants can be at least partially altered. The acoustically active material is located at least partially at a phase transition point and/or in the vicinity of a phase transition point.
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公开(公告)号：EP0469898A3
公开(公告)日：1992-08-12
申请号：EP91307052.0
申请日：1991-07-31
申请人： NEC CORPORATION
CPC分类号： H03J3/28 , H03B21/02 , H03D7/163 , H03J1/0008
摘要： A transmitter using a dual conversion system which effects frequency conversion twice has a local oscillator (113) for generating a first local oscillation signal, a multiplier (118) for multiplying the frequency of the first local oscillation signal to produce a second local oscillation signal, a first mixer (115) for mixing the first local oscillation signal and first IF signal to produce a second IF signal, and a second mixer (120) for mixing the second local oscillation signal and second IF signal to produce a signal to be transmitted. A voltage controlled filter (116) whose center frequency varies with the frequency of the first local oscillation signal is connected to the output of the first mixer (115).
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9.发明授权High frequency receiving device, integrated circuit used for same, and TV receiver using them 有权RF接收器和集成电路用于电视接收机和与这些
公开(公告)号：EP1492243B1
公开(公告)日：2007-01-17
申请号：EP04014858.7
申请日：2004-06-24
发明人： Asayama, Sanae , Nakatsuji, Koji , Terao, Atsuhito , Tabata, Yoshihide , Takami, Hideji , Suzuki, Masanori , Kashima, Hirochika
CPC分类号： H03J5/244 , H03J3/28 , H03J2200/36
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公开(公告)号：EP0903852B1
公开(公告)日：2004-02-18
申请号：EP98116588.9
申请日：1998-09-02
申请人： ATMEL Germany GmbH , BECKER GmbH
IPC分类号： H03J1/00
CPC分类号： H03J1/0033 , H03J3/28 , H03J3/32
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