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.
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 |
| 8102124 | Inverter circuit for light source An inverter circuit drives a light source module. An input signal circuit provides electrical signals. A power stage circuit converts the electrical signals to square-wave signals. A transformer circuit converts the square-wave signals to alternating current (AC) si... | 01/24/2012 |
| 8008865 | Multiple failure detection shutdown protection circuit for an electronic ballast A shut-down circuit configured for use with an electronic ballast coupled to a lamp in a control path includes a device for sensing the electrical energy associated with the control path, and a sensing circuit for shutting down the ballast in the event that the ener... | 08/30/2011 |
| 7598677 | Multiple failure detection shutdown protection circuit for an electronic ballast A shut-down circuit configured for use with an electronic ballast coupled to a lamp in a control path includes a device for sensing the electrical energy associated with the control path, and a sensing circuit for shutting down the ballast in the event that the ener... | 10/06/2009 |
| 7443106 | Circuit with switch-off device for the operation of light sources Circuit with a switch-off device for the operation of light sources The invention relates to a circuit with a switch-off device for the operation of light sources (Lp), have the following features: a self-commutated half-bridge inv... | 10/28/2008 |
| 7405522 | Multiple failure detection shutdown protection circuit for an electronic ballast A shut-down circuit configured for use with an electronic ballast coupled to a lamp in a control path includes a device for sensing the electrical energy associated with the control path, and a sensing circuit for shutting down the ballast in the event that the ener... | 07/29/2008 |
| 7402960 | LED-based lamp apparatus A LED-based lamp apparatus includes a LED unit having multiple LEDs connected in series, a step-up circuit for stepping up a power supply voltage by a switching action of a switching element to supply an electric current to the LED unit, a sensing element for measur... | 07/22/2008 |
| 7393119 | Method and apparatus for constant light output pulsed L.E.D. illumination An illumination source includes a plurality of LEDs, and an electrical circuit that selectively applies power from the DC voltage source to the LED units, wherein the illumination source is suitable for handheld portable operation. In some embodiments, the electrica... | 07/01/2008 |
| 7352079 | Electronic ballast for a lamp An electronic ballast for a lamp has a DC voltage connection; a switching unit having a supply voltage with the DC voltage connection being coupled thereto, and a first capacitor coupled between the supply voltage connection and a reference potential; an AC voltage ... | 04/01/2008 |
| 7315130 | Switching control for inverter startup and shutdown An electronic ballast circuit for a lamp is described, wherein the ballast comprises a power factor correction circuit coupled to an inverter circuit. The inverter circuit is further coupled to a trigger circuit, which is in turn operatively connected to a hot or ne... | 01/01/2008 |
| 7286332 | Apparatus for protecting bicycle electrical components An electrical control apparatus comprises a current sensor and a current inhibiting circuit that inhibits current flow between first and second terminals of a bicycle dynamo when current sensed by the current sensor is below a selected value. ... | 10/23/2007 |
| 7282865 | Device and method for operating a discharge lamp The invention relates to a device for operating a high-pressure discharge lamp, comprising: a switched-mode power supply circuit for supplying power to the high-pressure discharge lamp from a supply voltage, the power supply circuit comprising at least one power swi... | 10/16/2007 |
| 7274153 | Portable fluorescent drop-light A hand-held fluorescent lamp assembly powered by typical line supply of 120 VAC, 60 Hz via an attached power cord and employing multiple commonly available fluorescent lamps. The assembly includes switches to independently control the multiple fluorescent lamps. The... | 09/25/2007 |
| 7265457 | Power control apparatus A power control apparatus includes a latch relay interposed between a power source and electronic control units, and a control section changed into an operative state when connected to the power source upon closure of a first switch, and supplies a drive current to ... | 09/04/2007 |
| 7247998 | Transient detection of end of lamp life condition apparatus and method A sensor system adapted to detect unwanted transients in the primary side of a luminous lamp load driving circuit and effect a change in operation of the driving circuit. A detection circuit is adapted to detect a transient, determine if it is an appropriate end-of-... | 07/24/2007 |
| 7218500 | High-voltage generator and accelerator using same In a high-voltage generator including a CW circuit (high-voltage circuit), where the CW circuit generates a high voltage through booster circuits that are provided for boosting an input voltage and connected to one another in multiple stages, a conductive shielding ... | 05/15/2007 |
| 7183714 | Ballast with relamping circuitry An apparatus for detecting the reconnection of a lamp filament to an electronic ballast driving a fluorescent lamp. A control circuit controls an inverter circuit to providing power to a filament control circuit. The filament control circuit preheats and powers the ... | 02/27/2007 |
| 7177131 | Control circuit of power supply with selectable current-limiting modes The present invention discloses a control circuit of power supply with selectable current-limiting modes, wherein the control circuit which maintains the power-output circuit of the power supply within the energy-limiting standard is performed with automatic detecti... | 02/13/2007 |
| 7098610 | Incandescent light power controller with predetermined off-state impedance An incandescent light bulb life extender circuit is designed to attach to the screw base of a conventional light bulb or incorporated in series with the AC powering the bulb. The circuit employs a bidirectional semiconductor switch that reduces the brightness of the... | 08/29/2006 |
| 7084580 | Discharge lamp lighting circuit A discharge lamp lighting circuit 1 has: a DC-AC converter circuit 3 which receives a DC input, and which conducts AC conversion and a boosting operation; and a starting circuit 4 which supplies a starting signal to a discharge lamp 10. T... | 08/01/2006 |
| 7084586 | Discharge lamp lighting apparatus and discharge lamp apparatus The present invention relates to a discharge lamp lighting apparatus which can prevent an increase of loss and a rise of temperature in the area where discharge lamp tube voltage is low. The power conversion circuit 1 converts the input power Pin to output th... | 08/01/2006 |
| 7075246 | Discharge lamp illumination circuit A discharge lamp illumination circuit 1 has a DC-AC conversion circuit 3 which effects AC conversion and boosting upon receipt of a DC input, and a starter circuit 4 for supplying a start-up signal to a discharge lamp. Power output from the DC-A... | 07/11/2006 |
| 7075254 | Lighting ballast having boost converter with on/off control and method of ballast operation A ballast for driving a gas discharge lamp comprising a rectifier stage having an alternating current (AC) input and providing a rectified output voltage, a boost converter stage receiving the rectified output voltage as an input and providing a boosted direct curre... | 07/11/2006 |
| 7068486 | Half-bridge circuit and method for driving the half-bridge circuit A half-bridge circuit has first and second semiconductor switches, which have load paths connected in series and which are driven in dependence on an input signal that is applied to an input terminal. At least one first drive circuit is provided, which is connected ... | 06/27/2006 |
| 7049766 | Liquid-activated lighted ice cube A liquid-activated lighted ice cube includes a battery-powered electrical circuit and LED housed in a hollow body that resembles an ice cube. The circuit includes electrodes exposed to the exterior of the hollow body that, when in contact with water or other liquid ... | 05/23/2006 |
| 7029145 | Low voltage decorative light string including power supply One or more strings of decorative lights are supplied with power by converting a standard residential electrical voltage to a low-voltage, and supplying the low-voltage to at least one pair of parallel conductors having multiple decorative lights connected to the co... | 04/18/2006 |
| 7015652 | Electronic ballast having end of lamp life, overheating, and shut down protections, and reignition and multiple striking capabilities An electronic ballast having end of lamp life and overheating protection, and automatic reignition and multiple striking capabilities includes AC/DC rectifier, PFC/boost, inverter, and ballast protection and control circuits. The ballast protection and control circu... | 03/21/2006 |
| 6998786 | Control circuit of electronic ballast for fluorescent lamp Disclosed is a control circuit of an electronic ballast for a fluorescent lamp, wherein the control circuit comprises a protection circuit and an automatic re-lamp circuit. The protection circuit detects an abnormal voltage condition resulted from a defective lamp t... | 02/14/2006 |
| 6949886 | Dynamic displays Gas discharge tube displays according to the present invention control power applied to the tubes using isolator/switches, which can be opto-isolators in combination with triacs, FET's or other semiconductor switching devices or devices which can form part of a swit... | 09/27/2005 |
| 6930895 | Computer power supply An object of the present invention is to provide a computer power supply in which, by improving the circuit itself, internal heat loss can be reduced, thereby greatly improving efficiency. A partial resonance circuit 8 is constituted by a primary side winding... | 08/16/2005 |
| 6911788 | Electronic ballast of high power factor for compact fluorescent lamp Disclosed is an electronic ballast of a high power factor for a compact fluorescent lamp (CFL) capable of implementing a high power factor and turning on lamps of different capacitances (3W-26W), or selectively turning on two lamps having the same capacitance or one... | 06/28/2005 |
| 6856096 | Ballast with load-adaptable fault detection circuit A ballast (10) for powering a gas discharge lamp load (30) comprises an inverter (100), an output circuit (200), and a fault detection circuit (300). During operation, fault detection circuit (300) monitors a first signal an... | 02/15/2005 |
| 6856094 | Electrical switch utilizing ball for lamps and like appliances A low voltage lamp is disclosed and claimed. The low voltage lamp includes a low voltage lamp switch having a first pole permanently connected to a remote source of electric power; a second pole permanently connected to a light; and a movable switch element permanen... | 02/15/2005 |
| 6850016 | Rare gas discharge lamp lighting apparatus A rare gas discharge lamp lighting apparatus has a power supply, a transformer, a switching element which is in series connected to the power supply and a primary side of the transformer, a rare gas discharge lamp connected on a secondary side of the transformer, an... | 02/01/2005 |
| 6781326 | Ballast with lamp sensor and method therefor A ballast circuit is provided having an input, an output for coupling to an electric discharge lamp and an oscillation circuit for illuminating the lamp. A circuit may be included for sensing when a voltage on an input to the oscillation circuit exceeds desired leve... | 08/24/2004 |
| 6577079 | Electronic ballast with intermediate circuit regulation An electronic ballast for at least one gas discharge lamp (LA) comprises a rectifier circuit (2) connectable to an a.c. voltage source (U0), a smoothing circuit (3), connected to the output of the rectifier circuit (2), for generating an interm... | 06/10/2003 |
| 6559608 | Lamp-voltage threshold detector A threshold detector for detecting lamp voltage includes an opto-coupler. The opto-coupler includes a radiation-emitting semiconductor element coupled to a source of a sensed voltage and an optically-coupled radiation-receiving semiconductor element with ... | 05/06/2003 |
| 6486612 | Control circuit and method for protecting a piezoelectric transformer from an open state and a short-circuited state In a piezoelectric transformer control circuit, when a load (2) is disconnected from a piezoelectric transformer (1) and changes to an open state, an output detection voltage (Vdet) becomes higher than a reference voltage (Vref2), and the output from a vo... | 11/26/2002 |
| 6441556 | Integrated fault protection for switched electronic systems for satellite applications An integrated fault circuit includes a fault switch interposed between an input power source and an electronic subsystem power bus. A power converter is connected to the electronic subsystem power bus and converts power derived therefrom to at least one v... | 08/27/2002 |
| 6281641 | Electronic ballast for one or more lamps An electronic ballast apparatus for powering one or more gas discharge lamps includes an inverter that is controlled by an inverter control circuit. The inverter control circuit adjusts certain ballast operating characteristics in order to operate the lam... | 08/28/2001 |
| 6278240 | Low interference lighting system A low-interference lighting system includes a housing, a voltage converter located within the housing, at least one pair of spaced-apart arms serving as electric elongated conductors extending from the housing, and a pair of special contact conductors for... | 08/21/2001 |
