Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7239243 | RFID tag imager In one embodiment, a system for obtaining an image of an RFID tag comprising a transponder and a tag antenna is provided, the system comprising: a plurality of inductors, each inductor being associated with a capacitor to form a resonant tank circuit, wherein each r... | 07/03/2007 |
| 7239240 | Method and apparatus for implementing security protection over RFID Disclosed is one method and one apparatus which teach improved techniques in equipping an RFID with security measure. Conventionally an RFID is employed basically to replace the usage of an infrared bar-code label thereby to supply electronic or digital signature an... | 07/03/2007 |
| 7233250 | Radio frequency identification device with visual indicator An RFID device includes a chip, an antenna operatively coupled to the chip, and a visual indicator operatively coupled to the chip. The visual indicator provides a visual indication of an operative state of the device. The visual indication may be human readable and... | 06/19/2007 |
| 7233260 | Electronic toll collection system An improved electronic toll collection system having two lane-based antennas per laneway. The antennas include an overhead antenna and a side mount antenna. The side mount antenna is disposed so as to communicate especially with license plate transponders. The two a... | 06/19/2007 |
| 7233240 | System and method for monitoring children using school and daycare transportation A system includes a global positioning system that tracks and monitors the school and daycare transportation, a plurality of barcode scanners which enter the children into the system and a plurality of barcode bracelets, with a barcode bracelet provided to each of t... | 06/19/2007 |
| 7233247 | Method and system for employing RFID tags in automated applications A method and an apparatus are provided for Radio Frequency Identification (RFID). An RFID base unit is provided that can communicate with at least two different types of RFID tags that are commercially available. Additionally, the RFID base unit can communicate with... | 06/19/2007 |
| 7228228 | Tag tracking The present invention provides a tracking system in which a mobile tag having an unknown position, which tag is to be tracked in space over time, transmits a signal comprising a pair of tones at different frequencies. The transmitted signal is received at each of th... | 06/05/2007 |
| 7224053 | Semiconductor device responsive to different levels of input and output signals and signal processing system using the same A semiconductor device which integrates a plurality of semiconductor chips into a single package includes a first semiconductor chip and a second semiconductor chip. The first semiconductor chip includes a plurality of first bonding pads outputting first signals hav... | 05/29/2007 |
| 7223030 | Systems and methods for determining physical location of RFID tags on embedded print media A printing system (250) includes a printing subsystem (255) in the form of a printer assembly (14). The printing subsystem (255) includes a printer housing (257) in which a print engine (259) resides and a memory (261... | 05/29/2007 |
| 7224276 | Antitheft system The present invention provides a burglar alarm system capable of accurately discriminating an alarm from a disturbance noise approximate to the alarm such as background music, ambient noises, etc. In a burglar alarm system comprising an alarm unit attached to an obj... | 05/29/2007 |
| 7221275 | Tuneable wireless tags using spatially inhomogeneous structures Wireless tags with a plurality of non-equivalent current pathways altered to collectively represent encoded information, each of which responds differently to an interrogation signal. The element is subjected to a signal stimulating the current pathways, each of whi... | 05/22/2007 |
| 7221900 | Jamming device against RFID smart tag systems A RFID jamming device and methodology are provided for inhibiting unwanted intrusions of RFID smart tag technology. The device includes a mechanism for actively or passively preventing a RFID scanner from accurately receiving information from smart tags associated w... | 05/22/2007 |
| 7221278 | RFID verifier An RFID verifier includes a transmit signal strength indicator (TSSI) and a receive signal strength indicator (RSSI). Using the TSSI, the RFID verifier may determine the amount of power an interrogated RFID tag is illuminated with. Similarly, using the RSSI, the RFI... | 05/22/2007 |
| 7216808 | Method for a user to answer questions or queries using electrical contacts A method that allows one to mark information with a pencil or ball point pen on a material and have the marked information represent answers to questions or responses to queries that may be read while the material is contained in an envelope. The material may be any... | 05/15/2007 |
| 7218224 | Human body detection sensor A human body detection sensor includes two oscillation circuits, a tuning circuit which connects equivalent points of the two oscillation circuits to each other, an antenna electrode which is connected to any one of the oscillation circuits so that a change in circu... | 05/15/2007 |
| 7218230 | Multi-dimensional antenna in RFID system for reading tags and orientating multi-dimensional objects A RFID system applying to a three-dimensional jigsaw is provided. The RFID system includes a jigsaw substrate having a plurality of blocks, a plurality of jigsaw units corresponding to each blocks of the jigsaw substrate, a RFID reader having a plurality of antennas... | 05/15/2007 |
| 7218229 | Location system and method that achieves time synchronized network performance with nodes divided into separate networks A system for locating an object within a monitored environment includes receivers arranged in loosely coupled networks. A tag transmitter acts as a network node and bridge between the loosely coupled networks. A processor is operative with each receiver within each ... | 05/15/2007 |
| 7218227 | Tracking system and associated method A tracking system (10) for tracking movable assets (16) and a method for using the system are provided. The tracking system includes a monitoring device (22), a tracking information network (20), a data communication network (18), ... | 05/15/2007 |
| 7216047 | Time-delay discriminator A method of determining the delay between two corresponding noise-like signals comprises determining events at which the level of a first of the signal crosses a predetermined threshold, using each event to sample a second signal, combining the samples to produce an... | 05/08/2007 |
| 7212127 | RFID tag and label A label includes a first portion that is printable with optically readable information and a detachable second portion that has an RFID tag that can be encoded with corresponding RFID information. The printable portion and the RFID portion can thus be printed and en... | 05/01/2007 |
| 7212124 | Portable information device Provided is a portable information device having an RFID, the device being a device in which no effect is produced on original communication of the portable information device for which an EMC measure is taken, the device having good productivity, and the device kee... | 05/01/2007 |
| 7212125 | Radio frequency identification architecture A radio frequency identification (RFID) architecture is described. RFID tags are interrogated by a reader, which may be located in a network of readers. The reader transmits symbols to the tags. Tags respond to the interrogations with symbols that each represent one... | 05/01/2007 |
| 7212116 | RFID system with an adaptive array antenna The present invention relates to use of a smart antenna for a RF reader on a Radio Frequency Identification (RFID) system to significantly increase the operating range of the RFID system. The smart antenna can be an adaptive antenna array. The smart antenna comprise... | 05/01/2007 |
| 7212117 | Automatic wireless synchronization of electronic article surveillance systems A distributed wireless phase locked loop system for synchronizing the transmit carrier's modulating waveform, such as the transmitter pulse timing in a pulsed EAS system and the transmit sweeping function for swept RF synchronization, is provided. To remove the effe... | 05/01/2007 |
| 7212119 | Provision of feedback to users of communication devices A pair of communication devices are capable of communication by means of a communication link, such as a Bluetooth or WLAN link. The device has an RFID tag containing data sufficient to identify feedback to be provided to a user. The device has an RFID reading devic... | 05/01/2007 |
| 7209039 | Decorative surface covering with embedded RF antenna and RF shield and method for making the same A technique is provided for printing an RFID antenna using conductive ink on a substrate and incorporating that substrate as a layer in a decorative surface such as a high pressure decorative laminate. In addition, a technique is provided for incorporating a conduct... | 04/24/2007 |
| 7209041 | Mobile RFID management method and system The present invention is a mobile method and system for automatically monitoring the location and use of tools using radio-frequency identification (“RFID”) tags. An RFID tag is secured to each tool with a unique numerical identifier. The RFID tag transmits its ... | 04/24/2007 |
| 7209037 | System and method for monitoring a security of an asset A security system and method for monitoring a security status of fixed and mobile assets. The security system comprises an agent connected with the asset. The agent monitors a security of the asset and transmits the data to a master control unit. The master control ... | 04/24/2007 |
| 7207488 | Combined barcode scanner and radio frequency identification reader with field interpretation array A combined barcode scanner and radio frequency identification reader includes a microprocessor control unit, an RFID module, a barcode scanner module, a host interface, and user interface(s). The microprocessor control unit utilizes a Field Interpretation Array to p... | 04/24/2007 |
| 7205897 | Product flow based auto-ID infrastructure A system includes a memory for storing a predetermined path through a plurality of data reading points in a auto-ID system, a plurality of auto-ID tracking devices operable to track an asset at the data reading points, and a processor. The processor is operable to r... | 04/17/2007 |
| 7197842 | Imprintable tape with tear lines defining symmetrical identification bracelets A flexible, substantially non-stretchable, imprintable tape which includes lines of weakness constituting tear lines defining in outline a longitudinal series of symmetrical identification bracelets. Each bracelet has a generally rectangular imprintable portion, a f... | 04/03/2007 |
| 7200361 | Wireless communication apparatus, wireless communication method and wireless communication media A wireless communication apparatus includes a transmitter to transmit a response request signal, a receiver to receives a response transmitted from a wireless communication medium in response to the response request signal, a level detector to detect a response rece... | 04/03/2007 |
| 7199713 | Homodyne single mixer receiver and method therefor An RFID circuit comprises an RF carrier signal source, a hybrid coupled to the RF carrier signal source operable to generate an in-phase and a quadrature phase component of the RF carrier signal, a switch coupled to the hybrid operable to pass one of the in-phase an... | 04/03/2007 |
| 7196621 | Tracking system and associated method A tracking system (10) for tracking movable assets (16) and several methods for using the system are provided. The tracking system includes a monitoring device (22), a tracking information network (20), a data communication network (18... | 03/27/2007 |
| 7194303 | H-bridge with sensing circuit In a cardioverter/defibrillator system, an electrical circuit includes an energy storage device, an output circuit for controlling delivery of pulse therapy from the energy storage device to a patient, and a sensing circuit coupled across the patient to sense the pa... | 03/20/2007 |
| 7193504 | Methods and apparatuses for identification An identification system includes a reader and one or more tags. The reader identifies tags such as radio frequency (RF) tags. The system divides a number space into n bins, wherein each bin is associated with m unique bits of the number space, and the number space ... | 03/20/2007 |
| 7190271 | Location system and method that achieves time synchronized network performance using unsynchronized receiver clocks A system for locating an object within a monitored environment includes a tag transmitter that transmits an RF signal to receivers having unsynchronized clocks. A processor is operative with each receiver and determines clock timing relationships for the clocks base... | 03/13/2007 |
| 7190270 | System and method for detecting transponders used with printer media A calibration apparatus for determining a location of a transponder supported by a printer media. The calibration apparatus uses a transceiver to attempt to read, write or otherwise communicate with the transponder. Controller logic of the calibration apparatus uses... | 03/13/2007 |
| 7187293 | Singulation of radio frequency identification (RFID) tags for testing and/or programming Methods, systems, and apparatuses for a radio frequency identification (RFID) tag tester/programmer and marker are described. A surface is in contact with a web of RFID tags. The surface has a first portion and a second portion. The first portion of the surface is g... | 03/06/2007 |
| 7187289 | Radio frequency detection and identification system A system is disclosed for detecting the presence of an article. The system includes a transmitter for radiating a first electromagnetic signal at a predetermined primary frequency and a resonant tag secured to the article. The resonant tag generates a second electro... | 03/06/2007 |
