Bizarre Patents
Vehicular Impact Signaling Device
An apparatus for the deployment of a visible plume to alert other motorists that a proximate motor vehicle has been involved in a collision.
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| Number | Title | Issue Date |
| 6911808 | Power supply apparatus having a reference voltage register and method of controlling A reference voltage register stores a reference value Vref indicating the output voltage Vout of a power supply circuit. A digital filter amplifies the difference between the output voltage Vout from the power supply circuit and the reference value Vref stored in th... | 06/28/2005 |
| 6462976 | Conversion of electrical energy from one form to another, and its management through multichip module structures The design and fabrication of a highly integrated, intelligent integral horsepower, three-phase induction motor drive is based on multichip module (MCM) technology. A conventional three-phase induction motor is transformed into a stand-alone variable-spee... | 10/08/2002 |
| 6341862 | Color filter, method of producing the same and liquid crystal display device The present invention relates to a color filter having a plurality of colored members as pixel portions which are formed by using dots of a plurality of color inks having different spectral characteristics. Light transmitting ink dots other than the color... | 01/29/2002 |
| 6331766 | Frequency sensing NMOS voltage regulator A frequency sensing NMOS voltage regulator is disclosed. A NMOS source follower transistor has a gate connected to a predetermined gate voltage, a drain coupled to an external supply voltage through a PMOS switching transistor, and a source connected to a... | 12/18/2001 |
| 6329804 | Slope and level trim DAC for voltage reference A method and apparatus for trimming the level and slope in a voltage reference using current-switching DACs to inject small correction currents into or draw currents from the voltage reference circuit. Each DAC is controlled via a programmable non-volatil... | 12/11/2001 |
| 6330173 | Semiconductor integrated circuit comprising step-up voltage generation circuit A VPP generation circuit included in the inventive semiconductor integrated circuit includes a VPP dividing circuit dividing a step-up voltage VPP, a VDDA dividing circuit dividing an array voltage VDDA supplied to a memory cell array area, a VREFD genera... | 12/11/2001 |
| 6325479 | Ink jet recording apparatus, electronic apparatus using the same and change control method therefor An ink jet recording apparatus includes a movable carriage capable of moving as designed while carrying, hereon, a plurality of different recording heads for discharging ink to record characters and/or images and a plurality of different ink tanks for sto... | 12/04/2001 |
| 6323627 | D.C.-d.c. converter with a transformer and a reactance coil A DC-DC converter having a transformer, a reactance coil and a controllable switch for turning a DC supply voltage on and off. The contact gap of a switching transistor is set at a reference potential at a connecting tap between a primary winding and a se... | 11/27/2001 |
| 6324084 | Power supply device, power supply method, portable electronics apparatus, and electronic timepiece In a rectifier circuit that rectifies an alternating current voltage generated by a generator and supplies the alternating current voltage to a capacitor as a power storage unit, a plurality of level shifters supplies a voltage level-shifted by an offset ... | 11/27/2001 |
| 6324078 | Power source device A power source device includes a control circuit which controls switching elements in full-bridge arrangement so as, in decreasing an output to a load, to substantially equalize ON timing of one of two switching elements at diagonal position to the other ... | 11/27/2001 |
| 6320363 | Voltage regulator with improved transient response A voltage regulator that includes a transistor, a first amplifier and a second amplifier. The voltage regulator maintains a voltage between a first node and a second node within a predetermined range by maintaining a current level flowing from the first n... | 11/20/2001 |
| 6317344 | Electrical device with booster circuit A semiconductor device that is capable of preventing erroneous operation such as momentary lighting, comprising a booster circuit to which first and second power supply potentials VDD and VSS are supplied from an external power source, for boosting the ab... | 11/13/2001 |
| 6316925 | Solar array peak power tracker A method for operating a pulse width modulated switching power converter (1), and a pulse width modulated switching power converter that is constructed to operate in accordance with the method. The power converter has an input coupled to an output of a so... | 11/13/2001 |
| 6310792 | Shared package for VRM and processor unit A component module includes a processor and at least a portion of a voltage regulator module which regulates voltages being supplied to said processor.... | 10/30/2001 |
| 6307759 | Control device for electric power translating device An electric power translating device employs a converter for converting an AC source voltage into a DC voltage, a smoothing capacitor connected at the DC side of the converter, an inverter for inverting the DC from the smoothing capacitor into an AC and f... | 10/23/2001 |
| 6304460 | Switching DC-to-DC converter utilizing a soft switching technique Soft switching DC-to-DC converter achieves simultaneously ultra high efficiency and very small size owing to a new magnetic circuit structure and a corresponding novel converter circuit configuration with special properties. Unique magnetic design also pr... | 10/16/2001 |
| 6304466 | Power conditioning for remotely mounted microwave power amplifier An apparatus and method are disclosed for regulating a high voltage DC supply derived from a plurality of unstable high voltage signals. The invention functions to derive a high voltage DC signal from a received unstable high voltage signals. A derived si... | 10/16/2001 |
| 6304474 | Chopper circuit, chopper circuit control method, chopper-type charging circuit, electronic device, and timekeeping apparatus A controller for through current prevention circuit controlling two N-channel FETs sets a shorted period based on a clock signal and, when two P-channel FETs are off during the shorted period, sets the N-channel FETs to on, and when chattering occurs in t... | 10/16/2001 |
| 6304475 | Switching power supply for gas laser A laser power supply apparatus supplies AC power to a gas contained in a laser device by way of a pair of dielectric layers, without having to use a transformer to form a high-frequency discharge in a gas to excite the gas, to cause the laser device to ra... | 10/16/2001 |
| 6304463 | Single-ended forward converter circuit with quasi-optimal resetting for synchronous rectification A single-ended DC-to-DC converter includes a power transformer having a primary winding and a secondary winding, with a primary switch and an input voltage source coupled in series with the primary winding of the transformer. The primary switch is periodi... | 10/16/2001 |
| 6300749 | Linear voltage regulator with zero mobile compensation A method and apparatus to dynamically modify the internal compensation of a low drop out linear voltage regulator is presented. The process involves using zero mobile compensation; when the output pole of the voltage regulator moves, a compensating zero i... | 10/09/2001 |
| 6297978 | Bypass rectifier connection for alternator transition locomotives A series-parallel rectifier system and methodology, employing multiple parallel rectification paths is disclosed. The system includes a dual winding AC power supply and a rectifier apparatus coupled to the AC power supply. The rectifier apparatus is compr... | 10/02/2001 |
| 6297980 | Unified constant-frequency integration control of three-phase power corrected rectifiers, active power filters, and grid-connected inverters The unified constant-frequency integration (UCI) control method of the invention is based on one-cycle control. It employs an integrator with reset as its core component along with a few logic and linear components to control the pulse width of a three-ph... | 10/02/2001 |
| 6295211 | Switching power supply unit having delay circuit for reducing switching frequency A switching power supply unit includes a DC power supply, a transformer having a primary winding, a secondary winding and a feedback winding, a main switching element connected in series to the primary winding, and a control circuit connected between the ... | 09/25/2001 |
| 6291977 | Differential current mirror with low or eliminated differential current offset The invention relates to a differential current mirror circuit with low or eliminated differential current offset. The circuit comprises first and second input transistors Q1i and Q2 i whose physical layout is being matched and emitt... | 09/18/2001 |
| 6288915 | Converter circuit arrangement having a DC intermediate circuit A converter circuit arrangement having a DC intermediate circuit (3) includes a transformer (8) having at least two windings (9 and 10). This transformer (8) is connected in the intermediate circuit (3) such that the undesirable, unbalanced current compon... | 09/11/2001 |
| 6288920 | Drive compensation circuit for synchronous rectifier and method of operating the same For use with a synchronous rectifier coupled to a secondary winding of a transformer and having a rectifier switch, a circuit for, and method of driving the rectifier switch and a power converter employing the circuit or the method. In one aspect of the p... | 09/11/2001 |
| 6288921 | Control apparatus for power converter A control apparatus for a power converter having a plurality of semiconductor switching devices that converts DC power into AC power and outputs three levels of voltages, including a command voltage generator configured to output a command voltage vector ... | 09/11/2001 |
| 6288523 | Precise rail tracking method for powering dual voltage integrated circuits A rail tracking system and method for providing precise tracking of voltage levels to a dual supply voltage Integrated Circuit. A switch mode DC-DC voltage regulator is used to derive the lower of the two voltage levels from the higher level. The switch m... | 09/11/2001 |
| 6288525 | Merged NPN and PNP transistor stack for low noise and low supply voltage bandgap A low noise band-gap voltage reference utilizes pairs of NPN and PNP transistors operable with supply voltages of less than 3 volts. This voltage reference utilizes pairs of bipolar transistors. Each pair has a NPN and a PNP transistor configured such tha... | 09/11/2001 |
| 6285569 | Switched mode power supply controller circuit and method thereof A switching power supply (96) receives an AC voltage and converts it to a regulated DC voltage. The switching power supply (96) includes a Vcc limiter (16) to limit the operating voltage at the power supply terminal (10) of a integrated regulator circuit ... | 09/04/2001 |
| 6285172 | Digital phase-locked loop circuit with reduced phase jitter frequency A digital phase-locked loop (DPLL) (22) for use in one or more integrated circuits (20) that may be combined within an electronic system is disclosed. The DPLL (22) includes a phase detector (30) that generates a shift clock and a shift direction signal r... | 09/04/2001 |
| 6275391 | Compact push-pull converter and crowbar circuit, and control therefor A push-pull converter, coupled through an isolation transformer to a crowbar circuit for controlling an isolated output voltage across an output capacitor, has a compact circuit arrangement with a minimal number of components. The switching devices of the... | 08/14/2001 |
| 6275399 | Method and apparatus for driving a semiconductor element with variable resistance circuitry In a driving apparatus of a power semiconductor element for conducting or interrupting a main current, first resistance variable for changing a first resistance according to a control voltage, and second resistance variable for changing a second resistanc... | 08/14/2001 |
| 6269013 | Chopping energization control device A chopping energization control device is made up of a first switching element interposed between one end of a load and one terminal of a power supply, a second switching element interposed between the other end of the load and the other terminal of the p... | 07/31/2001 |
| 6265856 | Low drop BiCMOS/CMOS voltage regulator Presented is a low-drop type of voltage regulator formed with BiCMOS/CMOS technology. The regulator includes an input terminal that receives a stable voltage reference connected to one input of an operational amplifier through a switch controlled by a pow... | 07/24/2001 |
| 6266254 | Switching power circuit In prior art, the operation of the switching transistors Q1 and Q2 is within a range of class-AB to class-B and they are not good at efficiency since it is difficult to change the operating point thereof. There is disclosed an innovative switching power c... | 07/24/2001 |
| 6265859 | Current mirroring circuitry and method A current mirror 100 includes a current mirroring transistor 103 having a selected aspect ratio for conducting a mirrored current of a selected mirroring ratio with respect to a reference current. A plurality of reference current transistors 201 are dispo... | 07/24/2001 |
| 6266258 | Power substrate element topology An inverter circuit includes a pair of switching devices coupled in series across high and low sides of a direct current bus. An output line is coupled between the devices for conducting controlled alternating current power produced by timed switching of ... | 07/24/2001 |
| 6265853 | Power source unit for transferring energy between power sources that power an electric vehicle A power source unit for use in vehicle is disclosed that effectively transfers energy between two power sources. The power source unit includes a main power source connected to input terminals of a current control circuit, such as insulation type power tr... | 07/24/2001 |
