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7049907 |
System and method for adjusting group delay
A group delay adjusting circuit. The group delay adjusting circuit comprises an electronically adjustable variable capacitance, and an electronically variable virtual inductor coupled in parallel...
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6335666 |
High frequency circuit with variable phase shift
To make a variable phase shifter at low cost and that is easy to manufacture, two propagation paths for a high frequency signal are provided in parallel between the input and the output of the...
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5757319 |
Ultrabroadband, adaptive phased array antenna systems using microelectromechanical electromagnetic components
A phased array radar system employs programmable microelectromechanical (MEM) switches and transmission lines to provide true time delays or phase shifts in order to steer the array beam. The array...
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5351219 |
Acoustic device
An acoustic device has an acoustic wave propagating medium exhibiting elastic abnormality in the vicinity of a Curie temperature. It is desirable that such an acoustic wave propagating medium be...
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5263004 |
Acoustic image acquisition using an acoustic receiving array with variable time delay
Apparatus and method for compensating for differences in time at which an incoming acoustic wave is received by an array of acoustic signal receivers to take account of the shape of the incoming...
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5187403 |
Acoustic image signal receiver providing for selectively activatable amounts of electrical signal delay
Apparatus and method to provide a controllable one-dimensional array or two-dimensional array of delay times for an array of acoustic signals propagating in a plurality of bodies of piezoelectric...
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5142254 |
Ultrasonic delay line device with an adjusting circuit for adjusting delay time, a comb-shaped filter using the ultrasonic delay line device and a method of adjusting delay time
An ultrasonic delay line device has an adjusting circuit for adjusting delay time provided between two terminals at the power input side of an ultrasonic delay line, wherein the adjusting circuit...
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5122766 |
Acoustic wave delay system with an optically controlled delay medium
A delay device for a frequency signal comprises an element made of acousto-optical material, provided with a first piezo-electric transducer transmitting an acoustic signal in the element and with...
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5058973 |
Device for reading by optical sensor coherence
A reading device operates by the placing in interference of a reference signal, in the form of a fundamental wave train, with delayed wave trains constituting the useful signal. The device...
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4720692 |
Long, narrow, uniform magnetic field apparatus and method
A laminar magnetic flux generating apparatus for use with a signal delay line or other apparatus requiring a long, narrow, uniform field. Magnetic flux orthogonal to the primary flux is generated...
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4692722 |
Compact frequency dispersive bulk acoustic wave channelizer
The disclosure relates to a small volume bulk acoustic channelizer, which does not utilize light and thereby avoids the shortcomings of light-related channelizers including limited dynamic range...
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4605911 |
Magnetic bias and delay linearity in a magnetostatic wave delay line
A cascade combination of magnetostatic delay line elements operating in different signal propagation modes for the purpose of achieving dispersion cancellation; magnetic bias control of the...
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4291283 |
Single-mode tunable oscillator using magnetostatic waves
An oscillator including two magnetostatic wave delay lines of different lengths formed on the surface of a magnetic material, one of whose ends is common and made by a first microstrip coupler,...
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4264882 |
Electric signal transmission device employing a ferromagnetic amorphous ribbon
An electric signal transmission transducer employing a ferromagnetic amorphous ribbon and especially an electric signal transmission element and system and an electroacoustic signal conversion...
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4259649 |
Electroacoustic delay line apparatus
An electroacoustic apparatus is disclosed for providing beam steered and focused compressional or shear waves, using an interdigital generating grid operative with one surface of a piezoelectric...
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4241995 |
Apparatus for measuring amount of displacement
An apparatus for measuring the amount of relative displacement of mutually facing electrodes in such a direction as to cause a change in the distance therebetween, comprises: a power source...
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4173003 |
Deltic (time compressor) with adjustable multiplication ratio
A delay line time compressor which can be operated at different multiplicon factors by virtue of changes in the length of the recirculation loop for selected parts of the recirculation routine. A...
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4165498 |
Variable delay device
A variable delay device for delaying an electrical signal includes a bar-shaped magnetostrictive member to be a transmitting path of a supersonic wave, an input transducer for converting an...
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4117424 |
Acoustic wave devices
A crystalline body having two or more domains interfacing at respective domain walls is utilized as an acoustic wave device. Input and output transducers and, in some embodiments, acoustic wave...
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3918012 |
Method and device for providing a variable delay line
This invention relates to a method and device for providing a variable delay line. The delay is adjusted by the movement of a wall separating two adjacent portions having different...
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3840826 |
VARIABLE DELAY DEVICES USING FERROELASTIC-FERROELECTRIC MATERIALS
An electronically variable time-delay device, utilizing either surface-wave or longitudinal-wave acoustic signals, comprises a crystal of ferroelastic and ferroelectric material. The crystal...
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3793598 |
DELAY LINE AND FILTER COMPRISING MAGNETIZABLE CRYSTALLINE MATERIAL HAVING PERIODIC STRUCTURE OF CYLINDRICAL MAGNETIC DOMAINS
A device for the processing of signals, comprising a wafer of a magnetic material with a lattice of cylindrical magnetic domains located in a magnetic field, which wafer is provided with a...
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3790907 |
LATTICE SOFTENING VARIABLE DELAY LINE
A device for providing a continuously variable delay for successive pulses in a rf pulse train or for individual pulses by using the principle of variable velocity of acoustic waves in materials in...
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3742375 |
CONTINUOUSLY VARIABLE DELAY LINE
Microwave information is applied to a LiNbO 3 crystal by way of a thin film transducer, and is then convolved with an ultrasonic δ-function. The δ-function is generated by a laser beam and is...
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3618134 |
HIGH-FREQUENCY FERRIMAGNETIC DELAY DEVICE
A microwave signal transmission device incorporating an axially magnetized cylindrical yttrium iron garnet rod operates over a broad frequency band as a two port, continuously adjustable, delay...
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3611202 |
VARIABLE DECAY REVERBERATION UNIT
An electromechanical reverberation unit for musical devices having adjustable damping members which may be selectively positioned with respect to the ends of the vibratory spring coils to permit...
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3568103 |
A SOLID STATE ACOUSTIC VARIABLE TIME DELAY LINE
This disclosure describes a solid-state variable time delay line. A DC voltage applied to the longitudinal axis of piezoelectric material creates a high field domain that propagates along said axis...
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3544806 |
CONTINUOUSLY VARIABLE LASER-ACOUSTIC DELAY LINE
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3537039 |
VARIABLE PIEZOELECTRIC DELAY LINE
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3514724 |
MAGNETOELASTIC SIGNAL PROCESSING APPARATUS
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3492667 |
MAGNETIC INFORMATION STORAGE
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3480737 |
APPARATUS FOR REDUCING TIME DURATION OF SIGNAL REPRODUCTION
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3475705 |
ADJUSTABLE ACOUSTICAL DELAY LINES ALSO CAPABLE OF BEING TEMPERATURE INSENSITIVE
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3436688 |
VARIABLE DELAY LINE WITH MOVABLE ELECTRODE
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3428144 |
ELASTIC WAVE ELEMENTS
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3425002 |
VARIABLE DELAY DEVICE
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3397370 |
Delay line having a thermoelectric generator responsive to rate of heat transfer
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3376558 |
Ferroacoustic memory apparatus
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3364474 |
Ferroacoustic memory delay line employing reflected strain waves for improved signal-to-noise response
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3362019 |
Ferroelectric memory
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3353118 |
Magnetostatic wave variable delay apparatus
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3350665 |
Variable elastic wave delay line using two strips pressed together
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3309628 |
Yig broadband variable acoustic delay line
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3302135 |
Adjustable delay line utilizing magnetostrictive wire lying in grooves in magnetic supporting medium
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3293557 |
Elastic wave devices utilizing mixed crystals of potassium tantalatepotassium niobate
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3286205 |
Variable delay line
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3283270 |
Wire delay line comprising two transducers, one relatively moveable with respect to the other
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3262074 |
Variable delay line with vibration absorbing termination
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3249900 |
Adjustable ultrasonic delay line with input and output transducer mounted on sliding block
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3234488 |
Light modulable circuit element
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