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| Number | Title | Issue Date |
| 6392348 | Dual voltage alternator using center-tap regulation A vehicle electrical system for supplying a first load with a first direct current voltage and for supplying a second load with a second direct current voltage lower than the first direct current voltage is disclosed. The vehicle electrical system include... | 05/21/2002 |
| 6392364 | High voltage discharge lamp apparatus for vehicles A hybrid IC of electronic circuit for a discharge lamp is disposed on the bottom of a metal case. A transformer, an inductor, a transformer, and a capacitor are disposed in a resin case. The resin case is contained in a metal case. In this instance, the t... | 05/21/2002 |
| 6389344 | Automatic headlight aiming device for a vehicle The rear vehicle height HR is detected by the vehicle height sensor as vehicle inclination information by a CPU. Based on the rear vehicle height HR, the inclination angle of the headlight optical axis direction is computed with an inherent control consta... | 05/14/2002 |
| 6384538 | Control apparatus for a light unit for vehicles Control apparatus for a light unit for vehicles, in particular motor vehicles, includes an electronic control unit for controlling the light unit, with the control unit having an I/O interface for connecting to a plurality of control and/or switching devi... | 05/07/2002 |
| 6382823 | Vehicular headlamp having reduced case formation A vehicular headlamp of a type having a lighting circuit unit mounted on an outer surface of a bottom wall of the lamp body in which failure of the seal between the lamp body and a front lens mounted thereon is prevented. A bottom wall extension portion i... | 05/07/2002 |
| 6376992 | Sealed beam high intensity discharge lamp system for aircraft A system for enabling successful use of HID lamps in aircraft, including in particular high power lamps for use as landing lights and taxi lights, utilizes a sealed beam HID lamp which during normal operation has an external temperature considerably lower... | 04/23/2002 |
| 6369513 | Vehicle lamp lighting-driving apparatus A vehicle lamp lighting-driving apparatus is provided, which includes: a lighting driving means to lighting-drive a lamp; a driving signal generating means to generate a pulse driving signal having a pulse with a duty factor to make a power consumption of... | 04/09/2002 |
| 6366024 | Method for providing a quantity representing the longitudinal inclination of a vehicle A method for providing a signal, representing the longitudinal inclination of a vehicle, for a control unit for the slip control and/or for the control of a quantity describing the yaw rate of the vehicle, measured quantities which can be acquired and pro... | 04/02/2002 |
| 6356040 | Arrangement for determining the state of a high-pressure gas discharge lamp on switching-on An arrangement for detecting the condition of a high pressure gas discharge lamp when switched on is described, where a control unit either injects a defined current into the lamp and measures the resulting voltage drop, or it applies a defined voltage to... | 03/12/2002 |
| 6351074 | Discharge lamp device for vehicle A steady-state condition in which respective discharge lamps for main beam and for dipped beam are both turned on, a sum (P1+P2) of a value of power supplied to each discharge lamp is controlled to be smaller than a sum (P1R+P2R) of a rated power value fo... | 02/26/2002 |
| 6349251 | Automatic automobile headlamp leveling device An automatic automobile headlamp leveling device is provided for a headlamp which is driven by an actuator so that a light axis of the headlamp can be tilted up or down relative to a vehicle body. A vehicle speed detection sensor is provided for detecting... | 02/19/2002 |
| 6339295 | Light source lighting device and method To provide a lighting device which is enabled to light a lamp of an incandescent bulb or the like in high luminance by a battery to be amounted on a vehicle. A lighting source lighting device 10 includes: an inverter 11 for converting a direct current fro... | 01/15/2002 |
| 6329755 | Light adjustment device for a vehicle A light adjustment device for a vehicle comprises: a control circuit 8 connected to a lamp 2; a first variable resistor 20 for adjusting the intensity of illumination of the lamp 2 by changing the output voltage of the control circuit 8; and a second vari... | 12/11/2001 |
| 6307330 | System and method for operating incandescent lamps with high voltage source A system and method is provided for operating incandescent lamps with a high voltage source in a motor vehicle. The system includes at least one pulse width modulation circuit having an incandescent lamp electrically connected to a high voltage source. Th... | 10/23/2001 |
| 6304035 | Method and device for automatically operating the lights of a motor vehicle Device for automatically operating the lights of a motor vehicle, comprising a central information-processing unit (1) for controlling on/off switching of the lights (7) of the vehicle, connected at input to a sensor (3) which senses the brightness in the... | 10/16/2001 |
| 6300726 | Ballast for high-pressure gas discharge lamp A ballast for a high-pressure gas discharge lamp of a motor vehicle has: a primary pulsed direct-voltage converter including a conversion transformer, a primary-side converter switch (switching transistor), and a secondary-side rectifier circuit; an H-bri... | 10/09/2001 |
| 6300718 | Lamp with switching device and control method thereof A headlight includes a beam-type switching device equipped with an electrical power limiting device. The power limiting device can lower operational electrical power after a certain time interval has passed following initial application of operational ele... | 10/09/2001 |
| 6293686 | Lighting device for vehicles The lighting device for a vehicle includes running direction detect means 3 for detecting the vehicle running direction or the vehicle steering angle and vehicle speed detect means 4 for detecting the vehicle speed. An illumination control means 5 specifi... | 09/25/2001 |
| 6291945 | Discharge lamp lighting device A lighting device for a discharge lamp includes a power supplying circuit for supplying electric power to the discharge lamp. A current sensing circuit is operative for sensing a lamp current which flows through the discharge lamp. A control circuit is op... | 09/18/2001 |
| 6291812 | Imaging system for vehicle headlamp control An imaging system for use in a vehicle headlamp control system includes an opening, an image sensor, a red lens blocking red complement light between the opening and the image sensor, and a red complement lens blocking red light between the opening and th... | 09/18/2001 |
| 6288492 | Head lamp switch with twilight sentinel control A system for controlling the turning on of vehicle headlamps 703 of a vehicle having a dome light 50 which provides a variable dome light intensity includes a sensor 40, a memory 820, a comparator 810, and a circuit 18. The sensor 40 senses the intensity ... | 09/11/2001 |
| 6281631 | Vehicle light system circuit which automatically compensates for a light source failure A vehicle light system circuit includes a PROFET to automatically detect the presence of a faulty light source and switch to an unaffected light source. The system also adjusts the brightness of the unaffected light source by adjusting a PWM signal applie... | 08/28/2001 |
| 6281632 | Continuously variable headlamp control Continuously variable headlamps offer greater flexibility for roadway illumination but offer challenges in automatic control design. Each continuously variable headlamp has an effective illumination range varied by changing at least one parameter from a s... | 08/28/2001 |
| 6278912 | Pitch angle calculating device for vehicle A pitch angle calculating device includes a height sensor 11 arranged in either one of a front position Pf and the rear position Pr separated from the front position Pf by a predetermined distance w, detecting either one of a front vehicle height hf and a... | 08/21/2001 |
| 6265829 | Multiplex light harness An auxiliary multiplex vehicle light harness which includes a headlight connector to connect to a headlight, a power connector to connect to a headlight plug, an auxiliary light connector to connect to an auxiliary light, and a microprocessor to control t... | 07/24/2001 |
| 6262537 | Headlight circuit for an automobile A lamp circuit for lighting a head lamp and a high beam lamp of an automobile is provided. A first lamp circuit includes a common circuit, an ordinary lighting circuit, and a daylight running lighting circuit. A second lamp circuit is connected to the fir... | 07/17/2001 |
| 6260992 | Vehicle headlamp device A vehicle headlamp device is designed to provide the feeling that sufficient light quantity exists in the high beam (H-beam) mode despite the use of a single discharge light source. The headlamp can be produced at low cost and by simple construction witho... | 07/17/2001 |
| 6256909 | One plug system for a snowplow An external electrical connector for connecting one or more components of a snowplow blade unit. The electrical connector includes two housing components that are securable together. Each housing component includes an interface end and a coupling end. The... | 07/10/2001 |
| 6255639 | Control system to automatically dim vehicle head lamps An automatic vehicle head lamp dimming system which includes an optical system and an imaging processing system. The optical system is configured to discriminate between head lamps and tail lamps and focus the light rays from the head lamps and tail lamps... | 07/03/2001 |
| 6201350 | Discharge lamp lightning apparatus and manufacturing method therefor In a discharge lamp lighting apparatus for a discharge lamp, each circuit component including a starter transformer is assembled to a bus bar casing, and a high voltage terminal of the starter transformer is connected to one end of a connecting terminal. ... | 03/13/2001 |
| 6194834 | Gas discharge lamp, in particular for a motor-vehicle headlight Proposed is a gaseous-discharge lamp, in particular for motor-vehicle headlamps, comprising a burner vessel of glass or the like having at least two electrodes, the burner vessel being provided with a lamp base that includes the electrical terminals and t... | 02/27/2001 |
| 6191540 | Devices for powering a motor vehicle headlight discharge lamp A power supply system for an automobile vehicle headlight discharge lamp, the system including a DC/DC converter with a capacitor at its output, a DC/AC converter powered by the voltage across said capacitor, and a module for generating a high-voltage bre... | 02/20/2001 |
| 6191531 | Device for influencing a lighting installation as a function of ambient light The invention relates to a device for influencing a lighting installation, and more particularly, includes a lighting installation of a motor vehicle, depending on ambient light. The device comprises a switching device to turn the lighting installation on... | 02/20/2001 |
| 6188180 | Ignition circuit for automotive high intensity discharge lamps An ignition circuit for a high intensity discharge (HID) lamp, comprising: first and second series coupled switching transistors connected across upper and lower voltage buses to which a source of DC voltage is connectable, the first switching transistor ... | 02/13/2001 |
| 6183118 | Automatic leveling apparatus for use with automobile headlamps An automobile headlamp automatic leveling apparatus is provided. A headlamp whose light axis is tilted upward and downward in relation to a vehicle body by means of an actuator, a control unit for controlling the operation of the actuator, vehicle speed d... | 02/06/2001 |
| 6177766 | Control device for the signal lights of a motor vehicle A control device for signal lights has a fully electronic flasher unit for intermittently activating the signal lights of the motor vehicle. A relay that is present in the vehicle in any case for other purposes and is likewise activated intermittently by ... | 01/23/2001 |
| 6177865 | Dual operational and brake light control for trailers A dual operational and stop light control for adapting combined stop and turn signal lights on a trailer to independent stop signal and turn signal lights on a towing vehicle. The adaptor has a pair of switching circuits, each including a PNP transistor c... | 01/23/2001 |
| 6175200 | Device for operating a gas discharge lamp with reduced average lamp power A device for operating a gas discharge lamp (13), with the device including an energy supply circuit which provides an alternating-current voltage (UL) or an alternating current (IL) having a predetermined period (TN) duri... | 01/16/2001 |
| 6175199 | Magnetically deflected arc lamp The arc of an alternating current discharge lamp may be magnetically straightened by including a small direct current component to the lamp current. The lamp may then be operated substantially as an alternating current lamp, but with out the need to synch... | 01/16/2001 |
| 6172469 | Device for operating a gas discharge lamp A device for operating a gas discharge lamp (13) is proposed, having a power supply circuit which makes available an alternating voltage (UL) or an alternating current (IL) of a predetermined period duration (TP) for the s... | 01/09/2001 |
