Bizarre Patents
Hands free towel carrying system
A hands free towel carrying system for coupling a towel to a user to prevent loss, theft or contamination.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7391822 | Method and apparatus for estimating a sample delay between a transmission signal and a feedback signal in a mobile communication system, and a base station transmitter using the same A method and apparatus for estimating a signal delay between a transmission signal which is to be processed in a predetermined communication device of a mobile communication system, and a feedback signal. Each of the transmission and feedback signals is sampled for ... | 06/24/2008 |
| 7354401 | Ultrasound sex determination for sorting of avian hatchlings A method for making a sex determination in avian hatchlings involves the following activities. A process line is equipped to process an endless plurality of hatchlings. The process line has an ultrasound inspection station for the hatchlings. The ultrasound inspecti... | 04/08/2008 |
| 7194907 | Method for measuring part thickness having an external coating using impedance matching delay lines An ultrasonic transducer for measuring a part with a coating having at least one acoustic transducer, and a buffer delay line having an impedance matched to an impedance of the coating. ... | 03/27/2007 |
| 7193462 | RF power amplifier system employing an analog predistortion module using zero crossings An RF amplifier system employing an analog predistortion module is disclosed. The disclosed analog predistortion module is based on zero crossings of the gain error curves (AM—AM and AM-PM curves minus DC). The hardware structure uses the product of first-order fu... | 03/20/2007 |
| 7027790 | Transceiver front-end A transceiver front-end provides an interface between a transmission medium and transmitter, and between a transmission medium and receiver. The transceiver front-end includes a hybrid circuit, a high-pass filter, and a gain stage, that permits the reduction or the ... | 04/11/2006 |
| 6674808 | Post-amplifier filter rejection equalization A post-HPA filter rejection equalizer system and method locally equalizes post-HPA filtering. A predistorter (20) uses a phase error to control the predistortion, and an equalizer (46) uses a magnitude error to control the equalization. The equalizer samp... | 01/06/2004 |
| 6285412 | Adaptive pre-equalization apparatus for correcting linear distortion of a non-ideal data transmission system An adaptive apparatus (10) for compensating a linear distorting action to an information signal within a non-ideal transmission system (12). Within the system (12), an information signal proceeds to a transmitter (34) that has an amplifier (62). A sample ... | 09/04/2001 |
| 6160856 | System for providing amplitude and phase modulation of line signals using delay lines A system for amplitude and phase modulation combines digital and analog circuitry for converting digital data into a line signal. Amplitude and phase decoders decode the digital data to determine the amplitude and phase required to represent the current s... | 12/12/2000 |
| 6121856 | Bulk acoustic wave device with lamb wave mode selection A bulk acoustic wave delay line is disclosed having a thin, amorphous metal substrate, and deposited on the first and second surface at each end of which is a very thin layer of a piezoelectric material. Positioned on each piezoelectric material layered a... | 09/19/2000 |
| 5523693 | Balanced signal source The bridge circuit receives the balance signal output from the balanced signal source, which generates a broad-band balanced signal over a frequency band of a direct current to several tens of MHz as a reflection-characteristic measuring bridge. The balan... | 06/04/1996 |
| 5371483 | High intensity guided ultrasound source An ultrasound source for transmitting ultrasound along a fiber or rod comprises a thin piezoelectric element having two closely spaced apart concave and convex surfaces and an acoustic intensifier abutting the concave surface. The acoustic intensifier tap... | 12/06/1994 |
| 5321325 | Single input push-pull circuit The invention relates to a modified electronic amplifier of the push/pull configuration. The difference being that only one signal (as apposed to two signals 180 degrees out of phase) is needed to drive the amplifier, the distortion in the nonlinear regio... | 06/14/1994 |
| 5177457 | Variable delay line A variable delay line includes a housing package (20, 21); an input terminal (27) extending outwardly from a first side of the housing package; an output terminal (28) extending outwardly from a second side of the housing package which is opposite to the ... | 01/05/1993 |
| 5163435 | Piezoceramic lamina acoustic delay line suitable for use in an ultrasonic diagnostic system An acoustic delay line includes electrodes on a monolithic piezoceramic substrate, which serve as electro-acoustic transducers for the delay line. The distance between said transducers defines the transit time, and thus the delay path. Each transducer may... | 11/17/1992 |
| 5130679 | Ultrasonic delay line mounted in a frame-like body having a wiring pattern thereon An ultrasonic delay line comprises a delay medium provided with transducers on at least a side surface thereof, an insulating substrate having a frame-like body in which a wiring pattern is print-formed and an opening having substantially the same shape a... | 07/14/1992 |
| 5086283 | Dipole transducer array for bulk acoustic wave delay device An acoustic delay line device for microwave equipment includes a cylindrical acoustic substrate. A transducer array including four transducers located at the corners of a square is formed on each end of the cylinder. The four transducers are electrically ... | 02/04/1992 |
| 4821004 | Method for the elimination of spurious echos in electro-acoustic delay lines using bulk waves and delay line applying this method Methods are disclosed for the elimination of spurious echos in electro-acoustic delay lines using bulk waves. The method consists in etching an array, formed of hollows and peaks on a reflecting side of a delay line of this type, the difference in height ... | 04/11/1989 |
| 4743870 | Longitudinal mode fiber acoustic waveguide with solid core and solid cladding An elastic waveguide, for propagating acoustic waves, consists of an elongated solid core region and an elongated solid outer cladding region. The acoustic waves propagate in a mode where the principle particle displacement is substantially parallel to th... | 05/10/1988 |
| 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 and poor response to short pulses. The device is essentially... | 09/08/1987 |
| 4531107 | Acoustic surface wave device Acoustic surface wave device comprising a lower electrode disposed on an elastic substrate and an upper electrode consisting of two comb-shaped electrodes disposed apart from each other, opposite to said lower electrode through a piezoelectric film coveri... | 07/23/1985 |
| 4528529 | Magnetostatic wave resonator A simple resonant cavity for sustaining magnetostatic waves (MSW) in a resonator device is achieved by depositing a ferrimagnetic film on a substrate and cutting two substantially parallel edges in the film. The substantially parallel edges serve as simpl... | 07/09/1985 |
| 4525692 | Electroacoustic delay lines An ultrasonic delay line fabricated from a solid transmission medium is configured to provide (2n+3) reflections of the desired signal at five reflective facets of an irregular polygon. The reflective pattern tends to allow maximum surface area available ... | 06/25/1985 |
| 4516090 | Ultrasonic delay line An ultrasonic delay line of a construction which is made up of: a casing having therein a delay medium accommodating section to accommodate therein a delay medium and a terminal accommodating section to accommodate therein planar metal terminals; and a co... | 05/07/1985 |
| 4510470 | Electro-acoustic delay line operating in transmission A transmission-type electro-acoustic delay line comprises an acoustic medium delimited by a cylindrical lateral surface, a plane terminal surface on which are fixed two symmetrical transducers, and a focusing terminal surface in the form of a spherical ca... | 04/09/1985 |
| 4499439 | Bifurcated electroacoustic delay lines A bifurcated electroacoustic delay line exhibits at least a pair of substantially identical branches, each assuming a generally pentagonal profile. Each branch is configured to provide (2n+3) reflections of a desired wave at five reflective facets. The re... | 02/12/1985 |
| 4488127 | Bifurcated electro-acoustic delay lines having transducers bonded at an area of bifurcation A bifurcated electroacoustic delay line exhibits at least a pair of substantially identical branches, each assuming a generally pentagonal profile. Each branch is configured to provide (2n+3) reflections of a desired wave at five reflective facets. The re... | 12/11/1984 |
| 4488128 | Bifurcated electroacoustic delay line with diagonal coupling A bifurcated electroacoustic delay line includes first and second branches of a transmission medium, the branches being joined along respective common sides. Bonded to the common sides of the branches are respective first and second input and first and se... | 12/11/1984 |
| 4482833 | Method for obtaining oriented gold and piezoelectric films A transducer with thin films of gold having a high degree of orientation on surfaces previously yielding only unoriented gold has a layer of glass over the surface of the substrate material followed by a layer of oriented gold over the layer of glass. The... | 11/13/1984 |
| 4477783 | Transducer device The disclosure is directed to an ultrasonic transducer device that includes a plurality of layers of piezoelectric material. A plurality of conductive electrodes are disposed on the layers of piezoelectric material such that each layer of piezoelectric ma... | 10/16/1984 |
| 4472692 | Tunable selective device using magnetostatic bulk waves Tunable selective devices utilizing forward magnetostatic bulk waves. A filter is able to act as an oscillator loop or as a passive transmission system in which two resonant cavities including gratings are so arranged that via a selective reflector gratin... | 09/18/1984 |
| 4467295 | Solid ultrasonic delay line There is disclosed a solid ultrasonic delay line which comprises a delay medium having two parallel major faces and at least three end faces intersecting the major faces, an input transducer bonded to one of the end faces and polarized in a direction para... | 08/21/1984 |
| 4465986 | Magnetostatic wave device A magnetostatic wave device which has broad application in the signal processing arena is disclosed herein. Basically, the magnetostatic wave device includes a layer of magnetized magnetic medium having a surface which includes a prespecified area to supp... | 08/14/1984 |
| 4392115 | Volume magnetostatic wave device The volume magnetostatic wave device comprises a unidirectional-radiation transducer composed of equidistant microstrips connected to a polyphase transformer and coupled to a ferrimagnetic wafer which is subjected to a polarizing magnetic field.... | 07/05/1983 |
| 4292608 | Electroacoustic delay line apparatus An electroacoustic delay line apparatus is disclosed including an acoustic bulk wave generating transducer positioned at one end of a delay line, with a predetermined spacing being provided between the respective electrode elements of the transducer array... | 09/29/1981 |
| 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 delay line member. The generating transducer is provided wit... | 03/31/1981 |
| 4254388 | Frequency selector apparatus A frequency selector apparatus wherein unidirectional input and output surface-acoustic-wave transducers are provided in an acoustic wave propagation path formed on a piezoelectric device and reflecting electrodes, to which a.c. signals are applied respec... | 03/03/1981 |
| 4194171 | Zinc oxide on silicon device for parallel in, serial out, discrete fourier transform A material suitable for the propagation of acoustic waves on its surface prises a substrate of semiconductor material, of which there exists an oxide, excluding the class of piezoelectric materials, the substrate having at least one flat surface. A layer... | 03/18/1980 |
| 4119934 | Bulk acoustic wave delay line A bulk acoustic wave delay line adapted to increase triple-transit signal suppression by selective aperture limiting, the device including a bulk acoustic wave-supporting body having a planar end face at each end of the bulk acoustic wave propagation path... | 10/10/1978 |
| 4099147 | Bulk acoustic delay device A bulk acoustic delay device incorporating a transmitting transducer, a substrate, and two receiving transducers is described which may reduce the amplitude of undesired received reflected bulk acoustic waves by positioning one of the two receiving transd... | 07/04/1978 |
| 4096456 | Surface elastic wave filter A surface elastic wave filter in which Rayleigh waves experience only small attenuation and phase-shift, the number of radiating elements encountered by the surface wave during the wave propagation having a direction parallel to an axis xx through the fil... | 06/20/1978 |
