Bizarre Patents
Wearable Device For Feeding and Observing Birds and Other Flying Animals
A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.
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| Number | Title | Issue Date |
| 7646204 | Method and system for testing a settling time for a device-under-test A system and method are disclosed for testing a settling time of a device-under-test (DUT). A method for determining a settling time of a device-under-test (DUT) includes activating a DUT to generate an output signal and mixing the output signal of the DUT and a ref... | 01/12/2010 |
| 7284445 | Strain waveform control apparatus, strain waveform regulating member, strain waveform control method by using strain waveform control apparatus, and strain waveform control program A strain waveform control apparatus of the present invention is adapted to horizontally supporting a printed circuit board over a trestle and cause strains on the printed circuit board by a dropped rigid ball with buffer blocks being located on both surfaces of the ... | 10/23/2007 |
| 7039471 | Method and device for calculating the steady-state time point of a controller A device for calculating the steady state behavior of a controller includes an amount generating unit for generating the amount of deviation of the regulator, a first threshold value calculation unit that detects whether the amount of deviation of the regulator has ... | 05/02/2006 |
| 6680607 | Method of detecting steady-state convergence of a signal A method for detecting steady-state convergence of a signal compares a filtered version of the signal or its derivative to a threshold over a given time interval, and a measure of the signal variability is used to tune the filter behavior. In one implemen... | 01/20/2004 |
| 6127829 | Method and apparatus for the efficient test of the center frequency of bandpass filters A method and apparatus for determining the center frequency of a bandpass filter. The center frequency of a bandpass filter is determined by applying a bias voltage to a bandpass filter circuit receiving a pair of differential input voltages and producing... | 10/03/2000 |
| 6118295 | Power supply voltage detection device A power supply voltage detection device includes a reference voltage generating circuit, an integrator circuit, a lower limit comparator, and an upper limit comparator. The reference voltage generating circuit generates lower and upper limit reference vol... | 09/12/2000 |
| 5869958 | Method of and apparatus for determining a response characteristic A method of determining a response characteristic of a microwave device includes coupling a microwave resonator to the device, loading the resonator with microwave radiation, monitoring the time decay of power from the resonator, and comparing the monitor... | 02/09/1999 |
| 5717325 | Multiprocessing transient event detector for use in a nonintrusive electrical load monitoring system A multi-processing transient event detector for use in a nonintrusive electrical load monitoring system has been provided. Templates of transient pattern data associated with each electrical load which may be monitored are stored. Such templates are then ... | 02/10/1998 |
| 5541520 | Filtering for electronic module test A method and apparatus for determining when transient responses of a signal have ended. A plurality of filters is provided. Operation of success of filters is cause to begin at successive times. The convergence of the outputs of the various filters is the... | 07/30/1996 |
| 5485101 | Frequency analyzer for sub-microsecond testing A method and apparatus for measuring the settling time of frequency changes in a voltage controlled oscillator (VCO) are disclosed. A signal splitter is responsive to the VCO for splitting the output signal between first and second channels. A delay circu... | 01/16/1996 |
| 5475314 | Method for estimating natural frequency of distribution system A method for improving accuracy of estimating natural frequency of a distribution system. The estimation is performed in order to identify a rectifier load that generates harmonics due to commutation oscillation. It includes the steps of measuring a charg... | 12/12/1995 |
| 5473255 | Apparatus for estimating natural frequency of distribution system A method for improving accuracy of estimating natural frequency of a distribution system. The estimation is performed in order to identify a rectifier load that generates harmonics due to commutation oscillation. It includes the steps of measuring a charg... | 12/05/1995 |
| 5321365 | Reduced noise sensitivity in inverse scattering through filtering An inverse scattering processing method with enhanced noise immunity and resolution capabilities for use in modeling multi-layer acoustic, electromagnetic or other propagating media. A time bounded filtering step is incorporated within a peeling method fo... | 06/14/1994 |
| 5162744 | Method of determining settling time of a device under test Settling time of an electrical device under test in response to a step wave input voltage is determined by first establishing first and second output voltage levels which differ from a settled output voltage level by preestablished voltage differentials, ... | 11/10/1992 |
| 5121066 | Variable load dump simulator system A variable transient simulator employs a source of pulsating DC voltage for charging a first capacitance bank to a desired potential difference. After a device under test (DUT) is connected to a second capacitance bank, the charged-up first capacitance ba... | 06/09/1992 |
| 5101162 | Method and apparatus for testing the response of a stress wave sensor The invention relates to a method and apparatus for testing the response of a stress wave sensor to check that the transducer and amplifier are working satisfactorily. A pulse generator is connected to the stress wave sensor at a point between the transdu... | 03/31/1992 |
| 4833631 | System for parameter identification of analog signals A system for determining the s-plane parameters, si and ri, of the transient response, ##EQU1## of a network-under-test (NUT). A filter bank, including N serially connected filter elements, has an input port and N output ports b... | 05/23/1989 |
| 4810950 | Load resistance measuring technique The resistance of an inductive load is measured by connecting an inductor to the load and applying a pulse of energy to the load and the inductor. The voltage across the inductor is monitored and the load voltage and current are measured when the inductor... | 03/07/1989 |
| 4785235 | Shorts testing technique reducing phantom shorts problems This shorts test method reduces the occurence of phantom shorts and also in those cases where phantom shorts occur, reduces the time required to eliminate the phantom shorts. When an unexpected open or short occurs or when an expected open or short does n... | 11/15/1988 |
| 4733165 | Multimode resonance chamber and method of determining an equivalent single mode relaxation response An improved microwave pulsed and computer-operated resonance chamber system for obtaining various parameters for a multimode chamber with or without a specimen therein. The system is generally made up of a continuous microwave signal source arrangement fo... | 03/22/1988 |
| 4719408 | Apparatus for indicating proper compensation of an adjustable frequency compensation network Apparatus for indicating proper compensation of an adjustable frequency compensation network comprises a signal source operable to apply a rectangular pulse train having a preselected peak magnitude to the frequency compensation network, and a peak detect... | 01/12/1988 |
| 4683417 | Method and apparatus for rapidly testing capacitors and dielectric materials The apparatus comprises a measuring unit (300) which receives a component to be tested (Cx) in series with a reference impedance in a measuring chain, a clock (100) suitable for applying repetitive stimulating pulses to the measuring chain, means for rese... | 07/28/1987 |
| 4670698 | Adaptive induction motor controller A method of measuring induction motor parameters so that the speed and torque control of an induction motor controller may be optimized. While the motor is stopped, a test signal made up of a current pulse of a known amplitude is applied to one or more wi... | 06/02/1987 |
| 4629977 | Method and apparatus for measuring the resonant frequency of a high Q resonator A resonator is initially charged by applying a drive signal offset from the expected resonant frequency of the resonator for a selected period of time. After the drive signal is removed from the resonator a period counter is used to count the period of th... | 12/16/1986 |
| 4547723 | Simple flyback checker A simple, low cost device for testing for shorted turns in the winding of electromagnetic coils or transformers by making use of the inductive kick voltage that is developed when the current through a coil is quickly interrupted. It uses rectified, unfilt... | 10/15/1985 |
| 4482858 | Apparatus for and a method of testing detonating systems An apparatus for and a method of testing AC operable detonating modules (10) whereby an electric charge is discharged through a primary wire (20) threaded through or around a transformer core (14) of a module being tested and the voltage across, or the cu... | 11/13/1984 |
| 4186282 | Method and apparatus for measuring telephone line characteristics A method and apparatus for deriving thirteen distinct parameters of a telephone line from current and charge flow measurements on each side of the line, taken during only three successive voltage states applied to both sides thereof through known tip and ... | 01/29/1980 |
| 3939405 | Apparatus and method for making decay rate measurements An apparatus and method is described for automatically measuring the rate of decay of oscillation in mechanical structures, acoustical enclosures, and electrical circuits which have been suitably excited. The apparatus includes a source of excitation ener... | 02/17/1976 |
