Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 8149155 | Range measuring method, range measuring apparatus, non-contacted IC medium and range measuring system A method of measuring a range from a reader unit to a non-contacted IC medium, includes: transmitting an inquiry signal at a first frequency from the reader unit to the non-contacted IC medium; causing the non-contacted IC medium to perform modulation to modulate th... | 04/03/2012 |
| 8102303 | Method for distance measurement and data transmission in a continuous wave radar system A method for distance measurement and data transmission in a continuous wave radar system is described. A continuous wave radar system has a transmit and receive module and at least one transponder device, a mobile control and monitoring device and an HMI system. Tr... | 01/24/2012 |
| 8089392 | Radar coordinate registration Integration of ionospheric models in over the horizon radars (OTHR) is achieved with very little or substantially no change to existing coordinate registration systems or software by specifying a virtual transponder at a target location and generating a signal which... | 01/03/2012 |
| 8072369 | System and method for interrogating a target using polarized waves A system and method for communication that could be used in an identification friend or foe system. The method comprises generating a first message by a processor and controlling a beam steerer to deflect transmitted waves toward a first angle. The method further co... | 12/06/2011 |
| 7952512 | Mobile device enabled radar tags A method is provided for mobile device enabled radar tags. A signal is transmitted to a radar tag. The radar tag detects the signal. The radar tag provides information. The information is received from the radar tag. A location of the radar tag is determined based o... | 05/31/2011 |
| 7948431 | Radiobased locating system provided with a synthetic aperture The invention relates to a method for increasing the accuracy of a measurement of a radio-based locating system comprising a mobile station and at least one fixed station, wherein the movement of a mobile station from an initial position is detected by way of measur... | 05/24/2011 |
| 7889115 | System and method for tracking and identifying aircraft and ground equipment In accordance with one or more embodiments of the present disclosure, systems and methods disclosed herein provide for tracking of objects, aircraft, vehicles, and ground equipment in a tracking area, such as an airspace and/or an airport terminal area. One embodime... | 02/15/2011 |
| 7786923 | Interrogator of communication system An interrogator that is to be incorporated in a communication system in which each of at least one transponder is operable, upon reception of a main carrier wave transmitted from the interrogator, to respond to the interrogator with a reflected wave that is generate... | 08/31/2010 |
| 7728761 | Active device for the reception and the emission of electromagnetic waves An active device includes a receiving antenna (6) that receives an electromagnetic (2) signal coming from a localisation system (3) and at least one emitting antenna (8) that 5 resends said signal (2) to said localisation sy... | 06/01/2010 |
| 7701381 | System and method of orbital angular momentum (OAM) diverse signal processing using classical beams The present invention describes a system and method of OAM diverse signal processing using classical beams for applications in which OAM signal character is controlled such as optical tagging and applications in which OAM signal character is not controlled such as c... | 04/20/2010 |
| 7573418 | Tag communication apparatus, control method for tag communication apparatus, computer readable medium for tag communication control and tag communication control system A direction estimating section estimates the incoming direction of a radio wave from an RFID tag in each of antennas. A position calculating section calculates the position of the RFID tag on the basis of the incoming direction of the radio wave estimated in the dir... | 08/11/2009 |
| 7501978 | Short-distance ranging system A system for ascertaining the range from an interrogator to one or more transponders comprises an interrogator that transmits an RF carrier that is received by each transponder, the energy in the received carrier being used to charge up a storage capacitor in each s... | 03/10/2009 |
| 7436350 | Combined aircraft TCAS/transponder with common antenna system The present invention is a combined aircraft TCAS/Transponder with common antenna system and transmitter. Common TCAS/Transponder multi-monopole top and bottom antennas may be connected to a top and bottom antenna modules, the top and bottom antenna modules being el... | 10/14/2008 |
| 7414517 | Radio frequency identification transponder A radio frequency identification transponder includes a power supply and a dynamic memory array that stores data. When power from the power supply ceases, the data in the dynamic memory array is validly maintained for a predetermined period of time. The dynamic memo... | 08/19/2008 |
| 7414567 | ADS-B radar system A system and method of using a standard ADS-B transmitter and encoder to identify targets to provide a collision avoidance system, wherein the method includes the steps of providing a standard ADS-B transmitter and encoder, a phase modulator including a digital synt... | 08/19/2008 |
| 7408497 | Method and device for determining a reference value of a response, in particular of a mode S response received by a secondary radar The present invention applies to the surveillance of, in particular civil, air traffic, and more particularly, to cooperative aircraft ground systems which make it possible to pinpoint in radial distance and in azimuth the aircraft present in a certain volume and to... | 08/05/2008 |
| 7405692 | Detecting concealed objects at a checkpoint Disclosed are systems, methods, devices, and apparatus to interrogate a clothed individual with electromagnetic radiation to determine if a concealed object is being carried. This determination includes establishing data corresponding to an image of the individual w... | 07/29/2008 |
| 7391359 | Mode S transponder transmission signal decoder and Mode S transponder transmission signal decoding method There are provided a differential processing unit which performs differential processing for a Mode S transponder transmission signal, an auto correlation arithmetic operation unit which performs an arithmetic operation of a degree of auto correlation between an inc... | 06/24/2008 |
| 7372398 | Electronic target position control at millimeter wave for hardware-in-the-loop applications An apparatus for use in controlling a simulated target position in a millimeter wave, hardware-in-the-loop system includes a pair of horns and a conditioning circuit. The conditioning circuit is capable of generating a pair of output millimeter wave signals, each to... | 05/13/2008 |
| 7369941 | Collision detection system and method of estimating target crossing location A collision detection system and method of estimating a crossing location are provided. The system includes a first sensor for sensing an object in a field of view and sensing a first range defined as the distance between the object and the first sensor. The system ... | 05/06/2008 |
| 7369036 | Method and system of information exchange between an interrogator device and transponder devices that takes into account the level of ambient noise A method and apparatus of information exchange between an interrogator device and a plurality of transponder devices are disclosed. Each of the transponder devices is equipped with a different binary identification code and is located in the magnetic field of the in... | 05/06/2008 |
| 7366466 | Wireless communication device interconnectivity A wireless communication device that is attached or included in an electronic object, such as a portable computer, having its own separate communication system. The separate communication system has an antenna for receiving and transmitting wireless communications, ... | 04/29/2008 |
| 7362258 | Transponder detection system using radio and light wave signals A target object detection system for detecting a target object using a detector and a tag on the target object; the tag includes a radio wave receiver receiving radio wave from the detector; a light receiver receiving a light signal from the detector; a receipt sign... | 04/22/2008 |
| 7362261 | Linear frequency-modulated pulse radar A linear frequency-modulated pulse radar system is provided in which the echo signal is mixed with a de-ramp signal, in order to reduce the bandwidth. The transmission signal of the pulse radar and the de-ramp signal are generated with the same reference oscillator,... | 04/22/2008 |
| 7363106 | System and method for carrier identification in a pneumatic tube system A system and method provides for the identification and monitoring of carriers within a pneumatic carrier system. Each carrier which is to be employed within the system includes an identification device such as a radio frequency identification (RFID) chip which has ... | 04/22/2008 |
| 7359770 | Control system for operating long vehicles The present invention is directed to a system and method for optimizing the dynamics and energy usage of long vehicles such as freight trains by determining their operating conditions and calculating an optimal sequence of power and braking control actions. The sequ... | 04/15/2008 |
| 7356494 | Robust wireless communications system architecture and asset management applications performed thereon A robust wireless communications system operable to provide communications for mobile wireless devices. The wireless communications system generally includes a management computing system, wireless infrastructure, and mobile wireless devices. The wireless infrastruc... | 04/08/2008 |
| 7353089 | Method and system for a signal guided motorized vehicle A motorized cart that supports one or more golf bags automatically follows a golfer around the golf course from hole to hole. In particular, the golfer wears, or carries, a signal transmitter that emits a signal that is received by the motorized cart and then used b... | 04/01/2008 |
| 7352652 | Ultrasonic tracking and locating system The invention relates to a method and a system for monitoring and position determination of objects and/or living beings within an area, such as, e.g. a room in a building. The system comprises a plurality of electronic units, called identification tags, which are a... | 04/01/2008 |
| 7349365 | Mobile telephone messaging by baseband envelope modulation A method and system communicates messages using a radio signal. The radio signal is transmitted according to an air interface standard for wireless radio communications. A baseband envelope of the transmitted radio signal is modulated while maintaining compliance wi... | 03/25/2008 |
| 7347148 | Shipping pallet equipped with a non-structural member carrying a readable device A shipping pallet comprised of at least one layer of substantially parallel, structural deck boards attached to a plurality of stringers is disclosed. The layer of deck boards defines a three-dimensional, substantially rectilinear deck zone that is defined by a top ... | 03/25/2008 |
| 7348875 | Semi-passive radio frequency identification (RFID) tag with active beacon A radio frequency beacon device for use with a backscatter interrogator includes a processor; a receiver coupled to the processor; a backscatter modulator coupled to the processor; and an active transmitter coupled to the processor, the active transmitter being conf... | 03/25/2008 |
| 7348886 | System and method to track inventory using RFID tags System and method for tracking inventory of a multiplicity of products. First RFID tags are associated with respective products or groups of products. Second Active RFID tags are associated with respective first containers for the multiplicity products. A third Acti... | 03/25/2008 |
| 7345626 | Pulse transmitters having multiple outputs in phase relationship and methods of operation A transmitter provides a plurality of output signals. The transmitter includes a processor, a modulator, a first circuit, and a second circuit. The modulator provides a modulated signal responsive to the processor. The modulated signal includes an amplitude modulate... | 03/18/2008 |
| 7342500 | Compact microstrip transponder antenna A transponder formed on a circuit substrate having a longitudinal axis and a transverse axis. An antenna is disposed on one side of a transverse axis, extending in a longitudinal direction, and the remaining circuit components are disposed on the other side of the t... | 03/11/2008 |
| 7342481 | Method and circuit arrangement for wireless data transmission A method and circuit for wireless data transmission between a base station and one or more transponders is provided in which the base station modulates a carrier signal with a modulation signal and transmits it, in which symbols that are to be transmitted are coded ... | 03/11/2008 |
| 7336563 | Method and system for increased update rate in acoustic positioning A method for obtaining an increased update rate in an indoor acoustic positioning system for determining the position of one or more identification tags, comprising transmitting from an identification tag an acoustic spread spectrum sequence that is unique to the id... | 02/26/2008 |
| 7333017 | Wireless tag reader and writer A read and write box of a wireless tag reader and writer according to and embodiment of the invention has an open end and a closed end. Multiple envelopes each having a wireless tag at the end are inserted through the open end into the read and write box. The read a... | 02/19/2008 |
| 7330132 | Activation of an inductance loop vehicle detector An apparatus and method for activating an inductance loop vehicle detector is disclosed, wherein a magnet is positioned within a casing and attached to a vehicle. In order to activate the inductance loop vehicle detector, the vehicle, attached magnet, and casing are... | 02/12/2008 |
| 7327306 | RF system for tracking objects A system for tracking an object in space for position, comprises a transponder device connectable to the object. The transponder device has one or several transponder aerial(s) and a transponder circuit connected to the transponder aerial for receiving an RF signal ... | 02/05/2008 |
