Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7714738 | Method and arrangement for determining rotational movement A method and arrangement for detecting rotational movement. The method comprises the steps of arranging a sensor at the end of a rotation axle of a rotating object and at a distance from the rotation axle, arranging a detector external to the end of the rotation axl... | 05/11/2010 |
| 7639152 | Fan failure alarm device A fan failure alarm device includes a first digital-analog converting circuit (200), a first diode (D11), a switching circuit (260), an input-output (I/O) controller (U11), and an alarm circuit (270). The first digital-analog conve... | 12/29/2009 |
| 7501959 | Signal incoming direction estimation apparatus A signal incoming direction estimation apparatus is constructed so as to comprise a sensor array having plural sensors and the impedance of each of the sensors being set to a predetermined value, respectively, and a variable impedance adjustment means having a varia... | 03/10/2009 |
| 7427924 | System and method for monitoring driver fatigue A method and apparatus for monitoring driver fatigue in a vehicle having a steering control includes connecting a sensor with respect to the steering control and a controller with respect to the sensor. A steering input count signal and/or steering wheel rotation si... | 09/23/2008 |
| 7330689 | Method for detecting damage of a heating roller of a fixing apparatus based on its peripheral speed A fixing apparatus includes a fixing device configured to, by allowing a sheet having a developing agent image on it to pass between a heating roller and a pressing roller set in contact with the heating roller, fix the developing agent image in which at least one o... | 02/12/2008 |
| 7328616 | Digital angular velocity detection device A digital angular velocity detection device, including a stat or formed on a substrate. A rotor operable to rotate in response to an external force is provided. The rotor has a plurality of electrodes formed at regular intervals on a curve at a predetermined radius ... | 02/12/2008 |
| 7212101 | Device for broadband electrical signal and/or energy transmission using a transmission system including couplers An arrangement for broadband signal and/or energy transmission, between at least two units is disclosed. Said units may be displaced relative to each other along a track. Said arrangement comprises a first unit, which has a symmetrical open circuit arrangement with ... | 05/01/2007 |
| 7180425 | Drop detection device or abnormality detection device and portable apparatus equipped with said device The invention is aimed at preventing apparatus damage, loss of data, accidental firing of a firearm due to dropping or subjection to an impact, and other mishaps caused by accidental dropping or improper handling of the apparatus, firearm, etc. due to carelessness o... | 02/20/2007 |
| 7154385 | Vehicle-trailer backing up system using active front steer A vehicle-trailer back-up control system that employs an active front steer sub-system. The system includes a smart hitch controller that receives a vehicle speed signal and a hand-wheel angle signal, and calculates a hitch angle command signal. The system further i... | 12/26/2006 |
| 7138923 | System and method for monitoring driver fatique A method and apparatus for monitoring driver fatigue in a vehicle having a steering control includes connecting a sensor with respect to the steering control and a controller with respect to the sensor. A steering input count signal is provided from the sensor to th... | 11/21/2006 |
| 7135859 | Rotary and angular position sensing A device monitors angular position. The device includes a media platter and a magneto-resistance sensor. The media platter includes a track of data encoded on a surface of the media platter. The magneto-resistance sensor is located adjacent to the media platter and ... | 11/14/2006 |
| 7084755 | Method and device for monitoring the region of technical rolling bodies The invention relates to a method for monitoring the area of technical rolling bodies, especially their supports, wherein the forces exerted in that area are detected with sensors in order to generate electrical energy and to detect changes in the state of the area.... | 08/01/2006 |
| 7005774 | Rotary current-collecting device and rotating anode X-ray tube A rotary current-collecting device includes a rotary slip ring and brushes coming into sliding contact with the outer peripheral surface of the slip ring. The brush-holding ring has an inner surface to which three brush-holding springs are fixed by screws. Each of t... | 02/28/2006 |
| 6940399 | Tire air pressure detection device for detecting air pressure based on vehicle speed signal A tire air pressure detection device includes an ideal driving status calculating portion (3e) and a rotational status value compensating portion (3f). The ideal driving status calculating portion calculates an ideal status value (βid) c... | 09/06/2005 |
| 6930848 | Back EMF voltage transducer/generator to convert mechanical energy to electrical energy for use in small disk drives A mobile host device configured to draw electrical energy from an energy storage device includes a disk drive. The disk drive includes a disk drive enclosure including a base, a spindle motor attached to the base, a disk positioned on the spindle motor, a generator ... | 08/16/2005 |
| 6859002 | Device for controlling an electronically switched motor by means of a position signal A device for controlling an electronically switched motor which includes a coder (2) having a main multipole track (2a) and a so-called “revolution pip” multipole track (2b); a fixed sensor (3) delivering two digital pos... | 02/22/2005 |
| 6841958 | Device for controlling an electronically switched motor comprising angularly distributed singularities A device for controlling an electronically switched motor comprising a coder (2) provided with a main multipole track (2a) and a so-called “revolution pip” multipole track (2b), the said tracks each comprising N identical secto... | 01/11/2005 |
| 6806809 | Trailer tongue length estimation using a hitch angle sensor A control system for estimating the tongue length of a trailer being towed by a vehicle in connection with a front wheel steering with or without a coordinated rear wheel steering associated with the vehicle. The control signal system employs an algorithm that calcu... | 10/19/2004 |
| 6768418 | Tire air pressure detection device for detecting air pressure based on vehicle speed signal A tire air pressure detection device of the present invention includes a warning anticipation timing calculating portion for anticipating a warning timing at which tire air pressure decrease detecting portion will detect the tire air pressure decrease based on rotat... | 07/27/2004 |
| 6741170 | Apparatus for monitoring rotation of an object about an axis A sensor (36) for monitoring rotation of an object (16) about an axis (20) comprises a switch member (40) that is urged into a neutral position and is movable relative to the object (16). A direction of movement of the switch membe... | 05/25/2004 |
| 6727824 | Method and apparatus for thermal management of a display Apparatus and method are disclosed for thermally managing a display. A display may be tiltably coupled to a base, and the display may have a tilt sensor disposed therein for providing a tilt output when the display is tilted beyond a tilt threshold. Further aspects ... | 04/27/2004 |
| 6650971 | Method for establishing the angular position of a vehicle A method for establishing the angular position of the vehicle with the aid of at least one roll or rotation rate sensor, and which is checked in the course of a plausibility inspection, to check whether the integrated rotation rate signal is able to repro... | 11/18/2003 |
| 6492804 | Detected signal processing device for rotating sensor and detected signal outputting method therefor The rotation of a rotating magnet is detected by magnetic sensors. The rotational speed is detected from pulse signals detected by magnetic sensors, and the rotational direction is detected from the difference in a shift in phase. Signals different in pul... | 12/10/2002 |
| 6441745 | Golf club swing path, speed and grip pressure monitor The golf club has a head and a shaft. A three axis linear accelerometer is mounted on the shaft adjacent to the head. The axis of one accelerometer is in parallel alignment with an axis of the shaft. A circuit board is attached to the shaft and the accele... | 08/27/2002 |
| 6400143 | Digital sensor of relative position The invention relates to a digital sensor of relative position, which has a circular multipolar magnetic ring which is mobile in rotation opposite a stationary magnetic sensor comprised of at least two sensitive elements, respectively positioned facing a ... | 06/04/2002 |
| 6392556 | Chair tilt alarm The chair tilt alarm 10 comprises a power supply 12 in electrical communication with an on-off switch 14, a tilt sensor 16, and an warning device 18. The warning device 18 will be activated when the chair 20 is tilted beyond a predetermined angular positi... | 05/21/2002 |
| 6323779 | Displacement sensing apparatus A pedal stroke sensor a rotor that rotates with a brake pedal with a pair of brushes fixed on the rotor. The brushes are inclined oppositely to each other along rotating direction of the rotor and contact a circuit printed on a circuit board to generate o... | 11/27/2001 |
| 6304190 | Method for determining the absolute angular position of the steering wheel of a motor vehicle, and optoelecronic steering angle sensor A method of determining the angular position of the steering wheel of a motor vehicle using an optoelectronic steering angel sensor includes disposing a code transmitter between the light source and the line sensor. The line sensor has image points positi... | 10/16/2001 |
| 6292094 | Vehicle-trailer backing-up control system with vehicle rear wheel steering A method is disclosed for controlling a backing maneuver of an automotive vehicle and trailer combination in which the vehicle has operator-actuated front wheel steering and microprocessor-actuated, reversible electric motor driven rear wheel steering. Fo... | 09/18/2001 |
| 6198397 | Magnetic steering wheel movement sensing device A steering wheel movement detection device has a magnetic flux source and a magnetic sensor. The magnetic sensor is mounted on the steering column and the magnetic flux source is attached to the steering shaft or steering wheel and moves in accordance the... | 03/06/2001 |
| 6181235 | Rotary apparatus A rotary apparatus in which at least one electrically controlled device is attached to a rotor. The rotor carries coils such that rotation of the rotor generates power for the device. A switch is provided for controlling the supply of power to the device ... | 01/30/2001 |
| 6046679 | Method and indicator light for indicating the wind direction and wind velocity and the air pollution level The indicator light is constituted by a panel supporting juxtaposed and alternating neon tubes of blue, yellow, green and red color, these colors being assigned to the cardinal points north, east, south and west respectively. These tubes have voltage appl... | 04/04/2000 |
| 6002338 | Method and system for detecting failures in self-exciting sensor A method and system for detecting faults with a self-exciting sensor includes a monitor circuit coupled to the self-exciting sensor for monitoring a signal associated with the sensor and generating a failure signal. A voltage limiting circuit is coupled t... | 12/14/1999 |
| 5982279 | Tire air pressure detecting device To accurately detect a resonance frequency of tire even in high speed range by which tire air pressure state of each wheel is known, a calculation processing unit to which detection signals of wheel speed and resonance frequencies of tire are inputted cal... | 11/09/1999 |
| 5929756 | Method and apparatus for detecting the presence of an at least partially deflated tire on a motor vehicle The method of detecting a partially deflated tire includes the steps of detecting the angular velocity of each wheel and generating corresponding velocity signals or data, processing the velocity signals or data in a processing unit arranged for calculati... | 07/27/1999 |
| 5880678 | Warning device for monitoring rotation speed of prime mover A warning device for monitoring the rotational speed of a prime mover which includes: a) a converting unit electrically connected to the prime mover for converting a digital signal representative of the rotational speed of the prime mover to an analog vol... | 03/09/1999 |
| 5828975 | Method and device for calculating turning radius of vehicle taking load movement thereof into consideration A method of and a device for determining a turning radius of a vehicle, accurately, without being influenced by the load movement of the vehicle, are disclosed. The rotational angular velocities of left and right tires are detected, respectively. The turn... | 10/27/1998 |
| 5773972 | Transition detection circuit for detecting transitions in the state of an object of detection A detector 1, with its object of detection having operation characteristics that include a shift from a first state to a second state, outputs a signal e1 that corresponds to the operation characteristics of the object of detection. A first state detectio... | 06/30/1998 |
| 5760682 | Method for detecting a deflated tire on a vehicle Wheel speed values for each of four wheels are collected and analyzed for a statistical variation which would indicate low tire pressure. Prior to analysis, and following reset of the system, calibration factors are determined for each of the wheels to co... | 06/02/1998 |
| 5714941 | Integral information and energy storage system An integral information and energy storage system is disclosed comprising a disk drive having a housing, a shaft rotatably mounted therein, and a disk platter coupled to the shaft. A flywheel is also coupled to the shaft and includes, embedded in the flyw... | 02/03/1998 |
