Bizarre Patents
Behavior Modification Wristwatch
A wristwatch including a watch band and a watch body having an octagon shaped perimeter and being red in color and having the word STOP thereon to resemble a stop sign.
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| Number | Title | Issue Date |
| 7405544 | Voltage regulating circuit for uninterruptible power supply A voltage regulating circuit has a first switch, a transformer and a second switch. The first switch has an input node, a first node and a second node. The transformer is connected to the switches has a first coil and a second coil. The first coil and the second coi... | 07/29/2008 |
| 7342365 | Systems and methods for reducing input current in photoflash chargers A circuit for charging a photoflash that preferably reduces the average input to the switching regulator in an efficient fashion is provided. The regulator includes a transformer. The transformer includes a primary winding and a secondary winding. The switchi... | 03/11/2008 |
| 7291986 | Step sinusoidal voltage controlling method for hid, flourescent and incandescent light dimming applications A step voltage controlling device and method for High Intensity Discharge (HID) light dimming applications includes an autotransformer, voltage sensing block, current sensing block, pulse forming block, microprocessor control unit (MCU) block and plural three switch... | 11/06/2007 |
| 7289778 | Power circuit and communication device provided with same A power circuit in a battery powered portable communication terminal, having a battery and a transmission power amplifier for TDMA (Time Division Multiple Access) or TDD (Time Division Duplex) signals includes a power accumulator, a battery output current limiter, a... | 10/30/2007 |
| 7266705 | Secure transmission of data within a distributed computer system A method for the secure transmission of data from a distributor to a client over a computer network. The method includes encrypting the data using an encryption confidentiality key known to the client, but not the distributor. The method also includes storing the en... | 09/04/2007 |
| 7119451 | Self-powered miniature liquid treatment system with ultraviolet dosing A liquid treatment system that may be self-powered includes a filter, an ultraviolet light source and a hydro-generator. A flow of liquid may be filtered with the filter and used to rotate the hydro-generator to generate electric power. The ultraviolet light source ... | 10/10/2006 |
| 7068787 | System and method for protection of digital works A digital work and a system context (or resource information or system resource) are polarized enabling trusted rendering or replay of the digital work without depolarization of the digital content. The digital work includes digital content and resource information.... | 06/27/2006 |
| 6664771 | Power regulation of electrical loads to provide reduction in power consumption A power regulation system is coupled to an AC power source outputting an input voltage. The system has a first transformer to receive the input voltage and generate a control voltage. The system also has a second transformer that has a primary coil and a ... | 12/16/2003 |
| 6486641 | Power regulation of electrical loads to provide reduction in power consumption A power regulation system is coupled to an AC power source outputting an input voltage. The system has a first transformer to receive the input voltage and generate a control voltage. The system also has a second transformer that has a primary coil and a ... | 11/26/2002 |
| 6392577 | System and method for regulating an alternator A system and method regulates an alternator and includes a circuit for digitally generating a sawtooth waveform. An error amplifier circuit generates a divided down and error amplified alternator system voltage. A comparator circuit receives and compares ... | 05/21/2002 |
| 6356059 | Buck converter with normally off JFET An enhancement mode JFET as a switching device in a buck converter circuit combined with a single rectifier diode and an inductor. A control circuit coupled to the gate of the JFET switches the JFET between a current conducting state and a current blockin... | 03/12/2002 |
| 6351106 | Static voltage regulator and controller A voltage regulator apparatus comprises a transformer having a primary winding and a secondary winding, a plurality of further windings selectively connected to one of the primary winding and secondary winding, and a plurality of solid state selectors res... | 02/26/2002 |
| 6236192 | AC voltage regulator An AC voltage regulator, which not only has a fast response speed with respect to input voltage fluctuations but also is small in size and light in weight and is capable to boost an input voltage, comprises a high-frequency transformer 4, a first bi-direc... | 05/22/2001 |
| 6191567 | DC-DC converter, with duty cycle comparison for a dual mode back boost converter A converter for converting an input voltage (Ui) into an output voltage (U0). The converter has several modes of operation. The converter can, for example, operate in an up-conversion mode, a down-conversion mode, or a window convers... | 02/20/2001 |
| 6181027 | DC power distribution Apparatus and method is disclosed for overcoming the voltage attenuation and ground shifts normally associated with providing DC power to distributed loads from a DC power supply without the need for excessively large conductors, the need to distribute th... | 01/30/2001 |
| 6147476 | Two quadrant magamp regulator control circuit with fast dynamic response and full holdoff capability A magamp circuit including a saturable reactor for regulating the output energy delivered to a load and having a protective circuit for restricting energy flow to the load in the event of occurrence of a short-circuit at the load. Output energy fluctuatio... | 11/14/2000 |
| 6137277 | Static voltage regulator A static voltage regulator consists of a booster transformer, a regulator transformer, an electronic switching system and a control system. The booster transformer includes a booster primary winding and a booster secondary winding. The booster secondary i... | 10/24/2000 |
| 5804954 | Analog based tap position detector An tap changer for a voltage regulator including a tap positionable to vary the winding ratio of the transformer in response to changes in an electric load on the transformer is disclosed herein. The transformer includes a potentiometer mechanically coupl... | 09/08/1998 |
| 5633580 | Direct load current sensing for predicted regulator tap position A tap changer including a tap positionable to vary the winding ratio of the transformer in response to changes in an electric load on the transformer is disclosed herein. The transformer includes an electric drive which is responsive to raise or lower sig... | 05/27/1997 |
| 5619121 | Load voltage based tap changer monitoring system A tap changer including a tap positionable to vary the winding ratio of the transformer in response to changes in an electric load on the transformer is disclosed herein. The transformer includes an electric drive which is electrically powered to selectiv... | 04/08/1997 |
| 5581173 | Microcontroller-based tap changer controller employing half-wave digitization of A.C. signals A microcontroller-based tap-changer controller including apparatus for keeping track of an electrically closed tap position and for automatically changing the tap setting of load tap-changing transformers and regulators; the tap-changer controller further... | 12/03/1996 |
| 5545971 | AC voltage regulator An AC voltage regulator to be used to regulate voltage fluctuations both above and below a desired voltage output, the regulator including a regulator input connected with an AC power source, a regulator output connected with a load, and a single regulato... | 08/13/1996 |
| 5498915 | Electronically switched power receptacle A power switching circuit selectively connects an electrical load having first and second input connections to any one of a plurality of branch power circuits. Each branch circuit includes a first and second conductor defining a relative voltage therebetw... | 03/12/1996 |
| 5477131 | Zero-voltage-transition switching power converters using magnetic feedback A soft-switching circuit for achieving zero-voltage-transition (ZVT) type commutation in switching power converters includes a magnetic feedback circuit for achieving substantially zero voltage turn on of the active power switches and for achieving zero v... | 12/19/1995 |
| 5051685 | Waveform corrector A waveform corrector for providing correction to three-phase electrical power to correct for transient and harmonic distortion arising from electrical power cable reactance wherein the cable head end voltage and current are sensed without load end voltage... | 09/24/1991 |
| 5006783 | Three phase voltage regulator system using tertiary winding transformer A three phase voltage regulator system uses a transformer having primary, secondary and tertiary windings for each phase which are closely magnetically coupled to each other and are connected to provide a four wire (wye) three phase output on three hot li... | 04/09/1991 |
| 4965508 | Power supply circuit having controllable thyristor network and adjustable voltage regulator A load is supplied by a transformer supplied via a voltage regulator and thyristor network. The thyristor network and regulator are simultaneously controlled to respond to changes in the load and in practice the thryistors respond rapidly and are re-adjus... | 10/23/1990 |
| 4943903 | Power supply in which regulation is achieved by processing a small portion of applied power through a switching regulator Regulation of an AC or DC voltage is achieved by processing a major portion of the prime power through a square wave inverter and a small portion of the prime power through a pulse width modulated switching regulator. The methods of regulation generally c... | 07/24/1990 |
| 4896093 | Electronic inductor To produce a high current carring inductor with a high inductance value in space normally too small, a transformer is chosen which meets space requirements and has a primary winding of sufficient current capacity, but too little inductance. A bidirectiona... | 01/23/1990 |
| 4816738 | Tap changing power regulator for airport lighting A power current regulator, in particular for airport lighting, includes transformers in series with intermediate taps on their secondary windings staged a various different numerical weights. In each case, one of said taps is selected by a latch memory (M... | 03/28/1989 |
| 4791348 | Switching ac voltage regulator A pulse-width ac voltage regulator that provides a precisely ac output voltage without the need for any inefficient protective circuitry for ensuring proper operation when it repeatedly switches between its two alternative operating modes. A transformer i... | 12/13/1988 |
| 4774451 | Voltage controlling transformer circuit and method for generating a controlled load voltage by using such a transformer circuit A voltage controlling transformer circuit comprises a setting unit to the input terminals of which an alternating input voltage is applied and the output terminals of which provide an alternating output voltage the amplitude of which can selectively be ch... | 09/27/1988 |
| 4745352 | Switching AC voltage regulator A switching AC voltage regulator including a transformer, two solid state AC switches, and sensing means controlling the switches to produce the desired output voltage. The two switches conduct alternately and are switched at a rate much higher than the f... | 05/17/1988 |
| 4716357 | AC voltage regulator with split primary switching An apparatus for AC line voltage regulation has an input port for connection to an AC source, an output port for connection to a load, and a transformer assembly connected between the input and output ports. The transformer assembly comprises a buck/boost... | 12/29/1987 |
| 4692686 | Low-distortion line voltage regulator An AC voltage regulator maintains a predetermined, desired output voltage despite changes in the input voltage, the load, or other operating conditions. The regulator generates an AC reference voltage signal of the same frequency and in phase with the inp... | 09/08/1987 |
| 4517633 | Switched mode power supply with a plurality of regulated secondary outlets The voltage stabilization of the secondary outputs of switched mode power supplies is effected with high efficiency by means of a regulation circuit where the current feeding the storage capacitor (26) is flowing through the primary coil (32) of a transfo... | 05/14/1985 |
| 4419619 | Microprocessor controlled voltage regulating transformer A voltage regulating transformer utilizing a microprocessor and a versatile multipurpose set of hardware modules and software modules it is described. A standard tap changing mechanism is driven in response to an analog control signal to change the output... | 12/06/1983 |
| 4352055 | AC Variable voltage source utilizing pulse width modulation An AC variable voltage source utilizing pulse width modulation is provided that converts an input of two AC voltage waveforms of the same frequency but opposite phase into a single AC voltage output of the same frequency but with a variable amplitude. The... | 09/28/1982 |
| 4309734 | Methods and apparatus for limiting electrical current to a subsea petroleum installation This invention relates to the distribution of electrical power to subsea petroleum recovery installations, and more particularly to methods and apparatus for sensing and limiting the electrical current drawn through power cables disposed on the sea floor.... | 01/05/1982 |
| 4286207 | High-power AC voltage stabilizer An injection transformer has a primary winding series connected with a pair of inverse parallel-connected thyristors between a pair of input terminals. A control circuit is connected across a pair of output terminals for firing the thyristors. The injecti... | 08/25/1981 |
