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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7669201 | System and method for common file installation The invention provides a method and system for creating a single, common installation file for multiple target device types. In one approach, the method comprises providing a base engine, compiling the engine into an intermediate language code, and just-in-time comp... | 02/23/2010 |
| 7564799 | System and method for providing seamless roaming A communication system is provided in which a client device can communicate with a server via any one of plural communication networks, such as a WWAN, a WLAN, a wired LAN, a personal area network (e.g., Bluetooth), and any other networking architecture. More specif... | 07/21/2009 |
| 7501932 | System and method of reading from and/or writing to an RF transponder At least one identification (ID) number is used to effectuate communication between a radio frequency (RF) number and a radio frequency identification (RFID) base station. In accordance with a first embodiment of the present invention, at least a first ID number and... | 03/10/2009 |
| 7486172 | Enhanced identification protocol for RFID systems An identification protocol that includes multiple identification methodologies is used to isolate and identify a radio frequency (RF) transponder. In accordance with a preferred embodiment of the present invention, the RF transponder includes a memory device, an RF ... | 02/03/2009 |
| 7471199 | Mobile key using read/write RFID tag A mobile key includes an RFID tag associated with a memory. The memory holds a secure access code. An authorization status for a person or item associated with the mobile key is determined by interrogating the mobile key using an RFID interrogation field. Security i... | 12/30/2008 |
| 7416121 | Stand-alone proxy RFID read/write unit for print label encoding A proxy RFID read/write unit is used in conjunction with a non-RFID enabled network printer to add a capability to a local area network (LAN) to encode RFID transponders that are either embedded in print media or separate from the print media. The proxy RFID read/wr... | 08/26/2008 |
| 7323977 | Tunable RFID tag for global applications An RF transponder comprises a transponder integrated circuit, an antenna connected to the transponder integrated circuit, and at least one parasitic element adapted to interact electrically with the antenna and thereby affect antenna impedance. The orientation of th... | 01/29/2008 |
| 7274384 | Self cleaning thermal media An abrasive cleaning strip is a functional component of a media roll incorporated into the media strip as a header or a trailer. The abrasive cleaning strip is a plastic film coated with 1200 grit aluminum oxide particles. By including the cleaning strip on the medi... | 09/25/2007 |
| 7210633 | Self-compensating speaker volume control system for data collection terminal A data collection terminal is provided with an audible feedback system that self-compensates for changes in ambient noise levels. The data collection terminal comprises a central processor adapted to execute stored instructions and having at least a display, a keybo... | 05/01/2007 |
| 7143941 | Optoelectronic device and process for acquiring symbols, such as bar codes, using a two-dimensional sensor The invention relates to a device and a process for acquiring bichromatic bar codes, with a two-dimensional sensor with electronic scanning. The height Hy of the scanned portion is modified between at least two successive scanning operations. Thus, the device is or ... | 12/05/2006 |
| 7142092 | Networking applications for automated data collection An RFID reader directly controls computer network applications on the basis of information collected from an RFID tag. The RFID tag includes certain designated fields that identify a destination computer system and/or application program for data recovered from the ... | 11/28/2006 |
| 7121467 | Indicators of optimum positioning of a data collection device for reading data carriers, such as RFID tags and machine-readable symbols A data collection device for reading barcodes, matrix codes, acoustical tags, radio frequency identifier (RFID) tags, and other data carriers. The data collection device includes components to determine an actual position of the data collection device with respect t... | 10/17/2006 |
| 7084770 | Combination radio frequency identification transponder (RFID tag) and magnetic electronic article surveillance (EAS) tag A combination of a radio frequency identification transponder (RFID Tag) and to a magnetic electronic article surveillance (EAS) device is disclosed. The present invention relates generally to radio frequency identification (RFID) systems, and more specifically to R... | 08/01/2006 |
| 7075413 | Reference circuit enhancement for passive RFID tags A passive RF tag is disclosed in which the tag contains a tag oscillator for determining the modulation frequency of modulating the backscatter signal, and the tag oscillator frequency is stabilized when the tag modulates the backscatter signal. ... | 07/11/2006 |
| 7039359 | RFID interrogator having customized radio parameters with local memory storage An RFID interrogator has a receiver/transmitter architecture that accounts for the variation in tolerances of radio system electrical components. The RFID interrogator includes a memory in which is stored desired initial condition data of the receiver/transmitter ar... | 05/02/2006 |
| 7035466 | Process and device for detection of straight-line segments in a stream of digital data that are representative of an image in which the contour points of said image are identified A process for detection of straight-line segments in a stream of digital data that are representative of an image (m, n) in which the contour points of said image each defined by the modulus and the orientation θ of their gradient in relation to a horizontal axis a... | 04/25/2006 |
| 7027037 | Conditionally illuminated keypad legends A user input device employs a number of legends that are selectively illuminable to indicate an active one of alternative input values of a user selectable key. ... | 04/11/2006 |
| 7002475 | Combination radio frequency identification transponder (RFID tag) and magnetic electronic article surveillance (EAS) tag A combination of a radio frequency identification transponder (RFID Tag) and to a magnetic electronic article surveillance (EAS) device is disclosed. The present invention relates generally to radio frequency identification (RFID) systems, and more specifically to R... | 02/21/2006 |
| 6976062 | Automated software upgrade utility The automated software upgrade utility allows a customer, product supplier or software vendor to upgrade the operating system, firmware, applications and data files on any product regardless of the product type and characteristics. This upgrade process can be invoke... | 12/13/2005 |
| 6944424 | RFID tag having combined battery and passive power source An RFID tag is powered both by an internal battery and passively by an interrogating RF field. As a result, the RFID tag can be passively powered after the internal battery has been depleted. More particularly, an embodiment of the RFID tag includes electronic circu... | 09/13/2005 |
| 6853294 | Networking applications for automated data collection An RFID reader directly controls computer network applications on the basis of information collected from an RFID tag. The RFID tag includes certain designated fields that identify a destination computer system and/or application program for data recovered from the ... | 02/08/2005 |
| 6847620 | Mobile virtual LAN A communication system in which multiple protocols and proxy services are executed by an access point. In one embodiment of the invention, GVRP and GMRP registrations are combined in a single packet when a wireless device roams to a different VLAN. In addition, outb... | 01/25/2005 |
| 6838989 | RFID transponder having active backscatter amplifier for re-transmitting a received signal An RFID transponder is provided with an active backscatter amplifier that amplifies and re-transmits a received signal. The RFID transponder comprises an antenna and a circulator having a first port connected to the antenna. A modulator is connected to a second port... | 01/04/2005 |
| 6812841 | Passive RFID tag that retains state after temporary loss of power The present invention provides an RFID transponder that includes a state holding cell that maintains the present state of the RFID transponder during temporary losses of power. After power is restored to the RFID transponder, the state holding cell restores the pres... | 11/02/2004 |
| 6794000 | Tamper evident label with transponder employing multiple propagation points A RFID label with tamper-evident capabilities that is useable with many surfaces. The RFID label has a release layer positioned between the transponder substrate and the printed ink antenna. The release layer uses a pattern of adhesive whereby different surface's co... | 09/21/2004 |
| 6791591 | Printhead pressure relief mechanism A printhead pressure relief mechanism using a non-mechanical media thickness monitoring apparatus. An increase in media thickness is monitored by an emitter/detector pair, a piezo-electric pressure sensor mounted on the print head, a metal detector or a RFID read/wr... | 09/14/2004 |
| 6732451 | UV curing module for label printer A UV curing module for use with a label printer. UV curing lamps/radiation emitters are located to cover the label media path. The UV curing module may be integrated into the label printer or similar devices including a label applicator or a label rewinder. ... | 05/11/2004 |
| 6732930 | Optoelectronic device and process for acquiring symbols, such as bar codes, using a two-dimensional sensor The invention relates to a device and a process for acquiring bichromatic bar codes, with a two-dimensional sensor with electronic scanning. The height Hy of the scanned portion is modified between at least two successive scanning operations. Thus, the device is or ... | 05/11/2004 |
| 6724510 | Method and apparatus for generating an angular sweep of a directed propagation of electromagnetic radiation An angular sweep of a directed propagation of electromagnetic radiation is generated by a first oscillating or vibrating reflector that cooperates with at least one fixed reflector. Electromagnetic radiation, for example a laser beam, incident upon the first reflect... | 04/20/2004 |
| 6126348 | Power supply system and assembly for a portable electronic printer A portable electronic printing system including power supply assembly is disclosed. The printing system includes a printer comprising a printer housing having first and second ends, a handle disposed at the first end of the housing for allowing a user to ... | 10/03/2000 |
