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| Number | Title | Issue Date |
| 8130090 | Apparatus and method for detecting decrease in tire air pressure and program for detecting decrease in tire air pressure An apparatus for detecting a decreased air pressure of a tire includes an acceleration calculation circuit for calculating, based on rotation velocity information of tires of respective wheels of a vehicle; an acceleration variation calculation circuit for calculati... | 03/06/2012 |
| 7920057 | Method and device for localization of the position of a wheel of a vehicle The invention relates to a method and a device for localization of the position of a wheel (2) of a vehicle (1). According to the method of the invention, the vehicle (1) is equipped with two transmitting antennas—a lateral antenna (11)... | 04/05/2011 |
| 7893820 | Method of transmitting an electromagnetic identification request signal to an electronic housing mounted on a wheel of a vehicle Method of transmitting an electromagnetic identification request signal, generated by an antenna (11-14) connected to a central unit (15) mounted on a vehicle (1), to an electronic housing (6-9) mounted on a wheel (2-... | 02/22/2011 |
| 7884708 | Monitoring system for vehicle wheels and wireless measurement module The invention relates to a monitoring system for vehicle wheels and a wireless measurement module. The wireless measurement module is configured to be attached to a vehicle wheel and comprises: an acceleration measurement unit for determining acceleration informatio... | 02/08/2011 |
| 7868749 | Method and apparatus for detecting decrease in tire air pressure and program for determining decrease in tire air pressure The method includes: a step of calculating wheel rotation information; a judgment step of judging a decrease in a tire air pressure by comparing a predetermined reference value with a decreased pressure judgment value showing a wheel speed ratio of the front and rea... | 01/11/2011 |
| 7705716 | Apparatus, method and program for alarming abnormality in tire air-pressure The present invention provides an apparatus, method and program for detecting abnormality in tire air-pressure which allow detecting abnormality in tire air-pressure even if pressure in a tire is completely zero. The apparatus for alarming abnormality in tire air-pr... | 04/27/2010 |
| 7619510 | Apparatus, method and program for alarming abnormality in tire air-pressure The present invention provides an apparatus, method and program for alarming abnormality in tire air-pressure which prevent the issuance of an erroneous alarm and thus determine abnormality in tire air-pressure even when a rotational velocity of the tire changes by ... | 11/17/2009 |
| 7609151 | Apparatus, method and program for alarming abnormality in tire air-pressure The present invention provides an apparatus, method and program for alarming abnormality in tire air-pressure which detects abnormality of a tire even under unusual conditions such as offset load on a vehicle or providing a snow chain on one wheel. The apparatus, me... | 10/27/2009 |
| 7567171 | Method and device or system to monitor the state of tires, and detection of snow chains or spikes use, on a vehicle A system and method are provided for monitoring the physical integrity of a tire. The system and method include measuring a signal proportional to the speed of rotation of the wheel and calculating a harmonic signal of the round of wheel (e.g., equal to the energies... | 07/28/2009 |
| 7522032 | Method for detecting decrease in inner pressure of tire using GPS speed information Provided is a method for detecting decrease in an inner pressure of a tire with excellent accuracy by calculating accurate dynamic load radii by comparing the GPS speed information with tire rotational speed information collecting data only when a stable measurement... | 04/21/2009 |
| 7443288 | Tire and suspension warning and monitoring system A tire and suspension monitoring and warning system consisting of a set of multi-function sensors that monitor and warn of a failure mode. The system monitors and warns for tire imbalance, tire tread wear, and shock absorbers for a tire attached to a vehicle. The mo... | 10/28/2008 |
| 7432801 | System and method for detecting a rapid leak from a tire A method of detecting a rapid leak of gas contained in an automobile tire based on periodic measurements of a pressure Pa and a temperature Ta of the gas. The method includes determining a reference pressure Pcref, calculating an alarm threshold pressure Sref from t... | 10/07/2008 |
| 7411488 | Tire location detecting apparatus configured with rotation direction detecting devices and triggering device A tire location detecting apparatus for a vehicle with four wheels includes four rotation direction detecting devices, four transmitters, a triggering device, a receiver, and a controller. Each of the rotation direction detecting devices outputs a rotation direction... | 08/12/2008 |
| 7411487 | Tire-information administration system A tire-information administration system includes a plurality of sensor modules installed in tires; at least one reception module configured to receive data from the sensor modules; and a central control module configured to command the reception module to acquire d... | 08/12/2008 |
| 7408453 | Wheel-mounted tire pumping and energy generating system and method Wheel for a vehicle includes a wheel rim, a tire mounted on the wheel rim to define an inflatable interior compartment, a pump for pumping air into the compartment, and an energy generating system for generating energy upon rotation of the wheel to power the pump an... | 08/05/2008 |
| 7408452 | Wireless wheel speed sensor In accordance with one or more aspects of the present invention, a wireless sensing system is disclosed, where the system has particular application to sensing the speed of a vehicle wheel, for example. To sense wheel speed, a sensing unit senses changes in magnetic... | 08/05/2008 |
| 7403103 | Wheel mounted power generator The present invention is directed to a wheel condition detection and signalling device. The device includes a chamber which is capable of being attached to a wheel of a truck to rotate therewith and a pendulum having significant mass and is rotatably mounted within ... | 07/22/2008 |
| 7397353 | Wireless tire pressure and/or wheel speed sensing system for aircraft A wireless tire pressure sensing system for an aircraft comprises: dual resonant circuits mounted to a wheel of the aircraft, each resonant circuit comprising: a variable capacitance sensor and a wire loop of a predetermined inductance coupled thereto, one capacitan... | 07/08/2008 |
| 7397352 | Method and device for localizing the position of at least two emission units, especially for monitoring at least one parameter for a plurality of wheels pertaining to a motor vehicle The invention relates to a method and a device for localising the position of at least two emission units, especially for monitoring at least one parameter for a plurality of wheels pertaining to a motor vehicle. The average power of the reception signals of a centr... | 07/08/2008 |
| 7395145 | Apparatus and method for calculating initial correction coefficient, and program for calculating initial correction coefficient An apparatus for calculating an initial correction coefficient for correcting rotational angular velocities obtained from outputs of rotational angular velocity detecting means. The apparatus includes a judged value calculating means which calculates a judged value ... | 07/01/2008 |
| 7391308 | Monitoring device, transceiver system and its control method A transmitter module has a sensor module that includes a plurality of sensors and operates intermittently, a signal processor module that permits transmission of an output of the sensor module to a receiver module at given permission timings, a radio transmission mo... | 06/24/2008 |
| 7388478 | Apparatus for detecting tire inflation pressure A sensor detects values of inflation pressure of a tire of a vehicle one after another. A controller calculates, from the values of the tire inflation pressure, a deflation rate at which the tire is deflating per unit time. When the deflation rate is higher than a f... | 06/17/2008 |
| 7385493 | Tire inflation pressure detection apparatus A tire inflation pressure detection apparatus includes a detection portion provided in a tire of a vehicle for detecting a tire inflation pressure, a transmitting portion for wirelessly transmitting a signal of a tire inflation pressure information, a receiving port... | 06/10/2008 |
| 7370523 | Tire deformation calculating method and tire deformation calculating apparatus A deformation of a rotating tire on a road surface is calculated the following. At first, time series data of acceleration extracted from measurement data of acceleration corresponding to one round of tire rotation is subjected to a time integration of second order ... | 05/13/2008 |
| 7369043 | Method and apparatus for automatically identifying the location of pressure sensors in a tire pressure monitoring system A tire pressure monitoring system (12) for a vehicle (10) has a plurality of tires (14A-D) in respective rolling locations having a respective plurality of tire transmitters (16A-D) that generate a respective plurality of transmitter iden... | 05/06/2008 |
| 7361998 | Energy harvesting for wireless sensor operation and data transmission A device for powering a load from an ambient source of energy is provided. The device includes an energy harvesting device for harvesting energy from the ambient source of energy wherein the rate energy is harvested from the ambient source of energy is below that re... | 04/22/2008 |
| 7362218 | Motion detection using a shock sensor in a remote tire pressure monitoring system A tire monitor for mounting to a vehicle as part of a remote tire monitoring system includes a tire condition sensor to produce a tire condition signal, a controller coupled to the tire condition sensor to control operation of the tire monitor, and a radio circuit c... | 04/22/2008 |
| 7350408 | Apparatus and systems for integration of a sensor into a wheel This apparatus and system for integration of a sensor into a wheel includes sensors for monitoring temperature, pressure or other variables inside of an inflated tire that are mounted directly to or inside of a wheel for the tire, that are in communication with cond... | 04/01/2008 |
| 7340369 | Detection device for decreased tire pressures and method thereof A device, and an analogous method and program, for detecting whether different tires are mounted on the left and right driving wheels of a vehicle and accurately detecting decreased tire pressures. The device detects the rotational speeds of wheels mounted on the ve... | 03/04/2008 |
| 7331220 | Device and method for monitoring tyre pressures Disclosed is a tire pressure monitoring device for a motor vehicle. A tire pressure monitoring system with direct measurement includes a transmission device for transmitting tire pressure values determined by pressure sensors, and a tire pressure monitoring system w... | 02/19/2008 |
| 7333008 | Tire deflation warning system and method thereof, and judgment program of tire with reduced pressures A tire deflation warning system having a means for detecting the rotational speeds of wheels on a vehicle and a means for judging tires with reduced air pressure from the rotational speed information of the wheels including a means for judging whether driving force ... | 02/19/2008 |
| 7327244 | Valve device with pressure alarm for tire A valve device includes a metal tube fixed to a tire rim of a vehicle. A valve is mounted in an end of an air passageway of the metal tube. A transmitter includes two switches respectively connected to two contact members fixed on the metal tube. A Bourdon tube incl... | 02/05/2008 |
| 7327243 | Method for warning deflation of tires and system thereof, and judgment program of deflation of tires A method for warning deflation of tires which can detect the deflation of 2 wheels at the same axle including a following axle, the simultaneous deflation of 4 wheels or the abrasion of tires only by the information of wheel speeds is provided. The method comprises ... | 02/05/2008 |
| 7323975 | Tire pressure monitoring system and method therefor A tire pressure monitoring system for a vehicle with at least one tire includes at least one pressure sensor adapted for sensing pressure inside the at least one tire. The system also includes at least one indicator adapted to communicate a stop signal indicating th... | 01/29/2008 |
| 7317381 | Wheel condition monitoring system A wheel condition-monitoring system comprises transmitters (1) installed on individual rotatable wheels, for transmitting conditions of the wheels, and a receiver (11) installed on the side of a vehicle body, for receiving the conditions of the wheels ... | 01/08/2008 |
| 7315240 | Tire inflation pressure sensing apparatus with command signal receiver having variable receiver sensitivity A tire inflation pressure sensing apparatus according to the present invention includes a transmitter, a receiver, and a command signal receiver. The transmitter is provided on a wheel of a vehicle and includes a pressure sensor configured to sense the inflation pre... | 01/01/2008 |
| 7311314 | Vehicular suspension system A vehicular suspension system having a fluid circuit including two fluid cylinders provided on respective front-wheel and rear-wheel sides, and two fluid passage systems one of which connects one of two fluid chambers of the fluid cylinder on the front-wheel side to... | 12/25/2007 |
| 7305288 | Method and apparatus for detecting decrease in tire air-pressure, and program for judging decompression of tire A method for detecting decrease in tire air-pressure on the basis of wheel rotational information obtained from tires attached to a four-wheeled vehicle. The method includes the steps of: obtaining wheel rotational information obtainable from the respective tires, s... | 12/04/2007 |
| 7299694 | Method and apparatus for monitoring tire performance A method and apparatus for assessing tire performance by generating accurate, timely tire-to-surface slippage information under any operational/environmental conditions and on any road and/or off-road surface without requiring instrumentation of the roadway. The app... | 11/27/2007 |
| 7301446 | Method of detecting undersized, oversized, underinflated or overinflated tires A method of detecting the presence of an undersized, e.g., mini-spare, or an underinflated, oversized or overinflated tire or tires on a passenger motor vehicle improves operation of traction control, stability and anti-lock brake systems by compensating for such op... | 11/27/2007 |
