Patents
Sitemap › H03 - Basic electronic circuitry › H03H - Impedance networks, e.g. resonant circuits; Resonators › H03H 9 - Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
Patents for H03H 9 - Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators (20,116)
03/1982
03/09/1982US4319189 Magnetoacoustic position sensor employing pulse code sequence generators and detectors
03/09/1982US4319154 Temperature insensitive reflective array S.A.W. device
03/09/1982CA1119709A1 Acoustic surface wave resonator devices
03/02/1982US4317985 Dual heater stabilization apparatus and method for a crystal oven
02/1982
02/23/1982US4317093 Electric filter and method of manufacture
02/23/1982US4317059 Acceleration and temperature compensated piezoelectric bi-resonator
02/23/1982CA1118883A1 Surface acoustic wave transducer fabrication to reduce reflections
02/23/1982CA1118852A1 Electromechanical filter
02/18/1982WO1982000551A1 Two-pole monolithic crystal filter
02/16/1982US4316162 Magnetostatic wave device containing attenuation means and the way of making it
02/16/1982US4316161 Wideband low triple transit delay line
02/09/1982US4315275 Acoustic storage device intended in particular for the correlation of two high-frequency signals
02/09/1982US4315228 Multiple co-surface acoustic wave filters
02/09/1982US4314393 Method of manufacturing acoustic surface wave device
02/02/1982US4314221 Inductance device
02/02/1982US4314216 Mechanical filter
02/02/1982US4314215 Surface acoustic wave filter device with equalization of stray coupling
02/02/1982US4314214 Magnetostatic-wave device comprising a conducting strip exchange structure
01/1982
01/27/1982EP0044732A2 Acoustic surface wave transducer with improved inband frequency characteristics
01/26/1982US4313071 Piezo-electric quartz resonator
01/06/1982EP0043048A2 Comb filter
01/06/1982EP0043032A2 Piezoelectric resonator
01/05/1982US4309680 Electro-mechanical filter including mechanical resonator
01/05/1982US4309679 Surface acoustic wave filter
01/05/1982CA1115791A1 Surface acoustic wave devices
12/1981
12/29/1981US4308510 Surface acoustic wave filter
12/29/1981US4308482 Piezoelectric device utilizing an electroconductive pliable sheet under pressure
12/29/1981US4308481 Damped mounting for a piezoelectrically driven tuning fork resonator
12/22/1981US4307356 Surface acoustic wave device
12/22/1981US4306343 Device and method for the assembly of crystal resonators
12/15/1981US4306204 Bandpass mechanical filter
12/15/1981US4306170 AT-Cut quartz resonator, with w/t=2.0 to 2.8, l/t<25
12/15/1981US4305298 Mechanical resonator arrangements
12/08/1981US4305158 Television tuner
12/01/1981US4303897 Crystal filter structure for realizing a ladder filter
12/01/1981CA1113554A1 Surface wave device having enhanced reflectivity gratings
11/1981
11/25/1981EP0040559A1 Piezoelectric convolution device using elastic waves
11/24/1981US4302694 Composite piezoelectric tuning fork with eccentricly located electrodes
11/17/1981US4301431 Miniature delay line having low direct coupling
11/17/1981CA1112727A1 Electric frequency filter with piezoelectric crystals
11/17/1981CA1112726A1 Multiple pole bandpass filter having monolithic crystal elements
11/03/1981US4298849 Duall-passband surface acoustic wave filter
10/1981
10/27/1981US4297660 Electric circuit using surface acoustic wave device
10/27/1981US4297659 Crystal filter structure
10/27/1981US4297610 Small piezoelectric tuning fork
10/27/1981US4297416 Gold alloy wire for jewelry chains
10/20/1981US4296391 Surface-acoustic-wave filter for channel selection system of television receiver
10/20/1981US4296347 Surface acoustic wave sensor
10/13/1981US4295108 Filter circuit employing surface acoustic wave device
10/13/1981US4293986 Vacuum, alloying
10/06/1981CA1110356A1 Mesfet device surface-wave-device channel selector
09/1981
09/30/1981EP0036671A1 Container for electrical devices, groups of devices or integrated circuits
09/29/1981US4292608 Electroacoustic delay line apparatus
09/29/1981US4292584 Constant current source
09/29/1981US4292562 Mounting arrangement for crystal assembly
09/23/1981EP0036042A2 Arrangement to limit frequency variations of a quartz oscillator due to temperture variations
09/22/1981US4291285 Surface acoustic wave device and method of manufacturing
09/15/1981US4290033 Shallow bulk acoustic wave devices employing energy trapping
09/08/1981US4288765 Frequency selector apparatus
09/08/1981US4288284 Method of producing housing element for quartz crystal oscillator
09/08/1981CA1108746A1 Acoustic wave devices employing surface skimming bulk waves
09/02/1981EP0034851A2 Acoustic wave bandpass electrical filters
09/01/1981US4287493 Piezoelectric filter
09/01/1981US4287447 Crystal holder for different sizes of crystal
08/1981
08/26/1981EP0034351A2 Surface acoustic wave device
08/11/1981US4283650 Piezo-vibrator unit ceramic package with integral capacitor
08/11/1981CA1106960A1 Method of adjusting the frequency of a crystal resonator
08/05/1981EP0033097A2 Isolating and temperature compensating system for crystal resonators
08/04/1981US4282498 Circuit package
08/04/1981US4282454 Piezoelectric crystal mounting and connection arrangement
07/1981
07/28/1981US4281407 Surface acoustic wave pickup and recording device
07/28/1981US4281301 Acoustic wave devices
07/28/1981US4281300 Multi-pole crystal filter and method of improving the frequency response
07/28/1981US4281299 Signal isolator
07/28/1981US4281298 Flexural transducer
07/22/1981EP0032313A2 Temperature insensitive surface acoustic wave signal processing device
07/08/1981EP0031685A2 Surface acoustic wave device
07/07/1981CA1104664A1 Quartz crystal oscillator
06/1981
06/30/1981US4276524 Acoustic surface wave device
06/24/1981EP0030854A2 Surface acoustic wave transducer
06/16/1981US4273399 Transducer supporting and contacting means
06/09/1981US4272742 Acoustic wave devices with temperature stabilization
06/09/1981CA1102928A1 Simultaneously resonated multi-mode crystal force transducer
05/1981
05/27/1981EP0029065A1 Acoustic wave device
05/26/1981US4270105 Stabilized surface wave device
05/26/1981CA1101945A1 Single side band monolithic crystal filter
05/20/1981EP0028823A1 Electrically conductive connection between the active parts of an electrical component or an integrated circuit with contact points
05/20/1981EP0028783A1 Method of securing a piezoelectrical resonator onto a base
05/19/1981US4268808 Acoustic wave device
05/19/1981US4267621 Slide fastener
05/13/1981EP0028491A1 Electrical connector for mounting a flat transducer on a printed circuit board
05/13/1981EP0028265A1 Acoustic surface wave device
05/12/1981US4267534 Surface acoustic wave reflectors with weighted arrays of segmented and non-segmented lineal elements
05/12/1981US4267533 Acoustic surface wave device
05/12/1981US4267480 Electro-conductive elastomeric pad for piezoelectric device
05/12/1981US4267479 Mounting clips for thickness shear piezoelectric oscillator
05/05/1981US4266157 Piezoelectric resonator assembly with thin molybdenum mounting clips
05/05/1981US4266156 Subminiature piezoelectric quartz vibrator
05/05/1981US4265124 Remote acoustic wave sensors
04/1981
04/29/1981EP0027544A2 Acoustic surface wave component
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