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Class Information
Number: 333/133
Name: Wave transmission lines and networks > Plural channel systems > Having branched circuits > For providing frequency separation > Utilizing electromechanical transducer
Description: Subject matter wherein an electrical wave driven mechanical vibrator determines the frequency characteristic of the branched circuit.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
7986198 Frequency-variable acoustic thin film resonator, filter and communication apparatus using the same Jul. 26, 2011
7978025 Film bulk acoustic resonator, filter, communication module and communication device Jul. 12, 2011
7965155 Surface acoustic wave resonator, and surface acoustic wave filter and antenna duplexer in which the surface acoustic wave resonator is used Jun. 21, 2011
7944325 Electrical module with specified ground-side connection of filter circuit shunt arms May. 17, 2011
7939356 Method of manufacturing film bulk acoustic resonator using internal stress of metallic film and resonator manufactured thereby May. 10, 2011
7940147 Balanced acoustic wave filter device and composite filter May. 10, 2011
7937046 Wireless communication device for receiving mobile broadcasting signal and transmitting/receiving bluetooth signal with single antenna May. 3, 2011
7924118 Duplexer and elastic wave device Apr. 12, 2011
7915972 Balance filter and duplexer Mar. 29, 2011
7902940 Duplexer Mar. 8, 2011
7898366 Balanced acoustic wave filter device and composite filter Mar. 1, 2011
7898364 System and method for using MEMS filter bank Mar. 1, 2011
7898360 Surface acoustic wave filter and surface acoustic wave duplexer Mar. 1, 2011
7893792 Duplexer using an embedded PCB and method of fabricating the same Feb. 22, 2011
7893793 Film bulk acoustic wave resonator and method for manufacturing the same Feb. 22, 2011
7893794 Branching filter package Feb. 22, 2011
7889024 Single cavity acoustic resonators and electrical filters comprising single cavity acoustic resonators Feb. 15, 2011
7884686 Component operating on acoustic waves Feb. 8, 2011
7880561 Surface acoustic wave filter device and duplexer Feb. 1, 2011
7876176 Acoustic wave filter device and duplexer Jan. 25, 2011
7876178 Composite filter comprising a surface acoustic wave filter and an LC filter Jan. 25, 2011
7872548 Antenna duplexer Jan. 18, 2011
7868716 Acoustic wave filter apparatus Jan. 11, 2011
7868715 Duplexer and communication apparatus using the same Jan. 11, 2011
7863699 Bonded wafer package module Jan. 4, 2011
7859362 Branching filter package Dec. 28, 2010
7859363 Component comprising at least one filter that operates with acoustic waves Dec. 28, 2010
7840200 Antenna matching device and transceiver having the same Nov. 23, 2010
7831210 MEMS-based broadband transceiver/sensor Nov. 9, 2010
7830227 Device having integrated MEMS switches and filters Nov. 9, 2010
7830226 Film bulk acoustic resonator filter and duplexer Nov. 9, 2010
7825749 Integrated coupled resonator filter and bulk acoustic wave devices Nov. 2, 2010
7821358 Electrical component Oct. 26, 2010
7821357 Filter assembly comprising two bulk wave resonators Oct. 26, 2010
7812688 Surface acoustic wave filter, boundary acoustic wave filter, and antenna duplexer using same Oct. 12, 2010
7804380 Acoustic wave duplexer Sep. 28, 2010
7800460 Elastic wave filter device and duplexer Sep. 21, 2010
7800461 Antenna branching filter Sep. 21, 2010
7800464 Surface acoustic wave device and duplexer Sep. 21, 2010
7791435 Single stack coupled resonators having differential output Sep. 7, 2010
7777597 Band reject filters Aug. 17, 2010
7777595 Multi-channel filter assemblies Aug. 17, 2010
7777592 Antenna sharing device and portable telephone Aug. 17, 2010
7777222 Nanotube device structure and methods of fabrication Aug. 17, 2010
7760048 Elastic wave filter and communication device equipped with the elastic wave filter Jul. 20, 2010
7755455 Saw filter frequency characteristic control Jul. 13, 2010
7755453 Duplexer Jul. 13, 2010
7751782 Radio frequency signal transceiver device capable of enhancing transmission and reception performance of mobile communication device Jul. 6, 2010
7741931 Acoustic wave device, resonator and filter Jun. 22, 2010
7741930 Filter and antenna duplexer Jun. 22, 2010

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