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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 |
| 7612668 | System for providing a virtual vehicle boundary System for providing a virtual vehicle boundary. The system includes a method for activating a virtual fence for use with a delivery vehicle. The method comprises steps of detecting a protection event, determining that the protection event is an activation event, an... | 11/03/2009 |
| 7383049 | Automation of maintenance and improvement of location service parameters in a data base of a wireless mobile communication system In a wireless telecommunication network, hybrid (GPS and AFLT) mobile stations provide redundant position information, which is used for time base calibration and/or correction of position measurements. Every mobile station (i.e., handset or cellular phone) can be u... | 06/03/2008 |
| D555649 | Media display unit | 11/20/2007 |
| D554636 | Media display unit | 11/06/2007 |
| D551665 | Media display unit | 09/25/2007 |
| D549116 | CDMA wireless untethered trailer tracking terminal | 08/21/2007 |
| D548630 | Structural portions of a CDMA wireless untethered trailer tracking terminal | 08/14/2007 |
| 7126464 | Method and apparatus for controlling a valve during a hazard event A method and apparatus for controlling a valve during the detection of a hazard event. A hazard event is defined as an event that may endanger the health or safety of people or the environment from contamination of hazardous material carried by a vehicle. The hazard... | 10/24/2006 |
| 6928275 | Method and apparatus for compensating local oscillator frequency error The frequency error of an oscillator is minimized by characterizing the oscillator. A reference signal from an external source containing a minimal frequency error is provided to an electronic device. The external signal is used as a reference frequency to estimate ... | 08/09/2005 |
| 6907238 | Beacon for locating and tracking wireless terminals A method and apparatus to facilitate the locating and tracking of a wireless terminal, which may be advantageously used for E-911 service. The terminal may be directed to transmit a beacon for certain events, such as in connection with a 911 call. The beacon has a s... | 06/14/2005 |
| 6895249 | Method and apparatus for broadcasting position location data in a wireless communication system Techniques to efficiently broadcast position location data (PLD) from a base station to a number of terminals. In one aspect, PLD messages are classified into groups, and each group is broadcast in a different manner. For example, a first group of messages for PLD r... | 05/17/2005 |
| 6861980 | Data messaging efficiency for an assisted wireless position determination system An assisted wireless position determination system includes a plurality of base stations and a plurality of wireless devices, such as mobile telephones and personal digital assistants, adapted to communicate with the base stations. The wireless position determinatio... | 03/01/2005 |
| 6856789 | System and method for bluetooth paging with transmit power reduced according to channel metrics measured during inquiry process Power levels for transmitting Bluetooth paging signals are optimized by applying mapping rules dictating different power levels for different signal quality characteristics measured during an earlier, pre-paging inquiry process. A subject Bluetooth device initially ... | 02/15/2005 |
| 6856282 | Directly acquiring precision code GPS signals In general, the invention is directed to techniques for directly acquiring P-codes without first acquiring C/A-codes. For example, in one embodiment, a system comprises an assist server to track a P-code signal from a Global Positioning System (GPS) satellite and ge... | 02/15/2005 |
| 6845083 | Multi-standard transmitter system and method for a wireless communication system A transmitter 108 converts a digital baseband signal input 150 for transmission by an antenna 114 to support multiple communication standards. An over-deviation phase multiplier 130 increases signal phase deviation by a factor of M. A dig... | 01/18/2005 |
| 6832090 | System and method for identification of transmitters with limited information A system and method are disclosed by which a base transceiver station (BTS) may be uniquely identified. When attempting to determine the location of a mobile unit using signal from multiple BTSs, it is critical that the BTSs be uniquely identified and their position... | 12/14/2004 |
| 6825805 | Search procedure for position determination system A method of and system for performing a search for signals useful in determining the position of an entity. A first search is performed as part of a position determination attempt, and measurements are derived from the ensuing search results. Additional searching wi... | 11/30/2004 |
| 6816710 | Method and apparatus for signal processing in a satellite positioning system A method and apparatus for processing satellite positioning system (SPS) signals which are weak in level. In one embodiment, a SPS receiver receives at least two signal samples representing, at least in part, common information, wherein the two signal samples are as... | 11/09/2004 |
| 6816111 | Calibration and correction system for satellite position location systems To provide accurate and quick position measurements in a practical mobile position location system, the GPS receiver is calibrated, a frequency error in the next time period is predicted using a first frequency locked to an externally transmitted signal, and a secon... | 11/09/2004 |
| 6812896 | Selectively coupled two-piece antenna A selectively coupled two-piece antenna for use in a mobile phone having a casing and radio frequency (RF) communications circuitry includes a composite radiator that is selectively extendable from and retractable into the casing and a communications interface that ... | 11/02/2004 |
| 6778885 | Apparatus, method, and system of transferring correction information Apparatuses, methods, and systems of transferring correction information are described. In certain implementations, correction factors relate to stored or calculated values, and a correspondence between a correction factor and a value is indicated by a predetermined... | 08/17/2004 |
| 6775802 | Method, apparatus, and system for signal prediction An apparatus, method, and system for predicting subframes of Global Positioning System (GPS) signals. The apparatus include a processor capable of determining whether a subframe is an almanac subframe, setting a timehead and adding it to a time-of-week (TOW), settin... | 08/10/2004 |
| 6768448 | Apparatus and method for time maintenance in a satellite position system receiver A system for maintaining time in a satellite positioning system (SPS) receiver that relies on almanac data to maintain a reasonably accurate time. The approximate time based on almanac data is sufficiently accurate to bound the unknown parameters when a request for ... | 07/27/2004 |
| 6754583 | Server-assisted position determination in a radio network A client unit (102) has a client GPS receiver (104) integrated with a two-way-radio transceiver (108) and a client manager (116) for performing server-assisted global position fixes. A server unit (120) is associated with a second ... | 06/22/2004 |
| 6750102 | Semiconductor non-volatile memory device having an improved write speed A non-volatile memory IGFET device has a gate dielectric stack that is di lectrically equivalent to a layer of silicon dioxide having a thickness of to 170 Å or less. Above the dielectric stack is a polycrystalline silicon gate that is doped in an opposite manner ... | 06/15/2004 |
| 6725430 | Process for designing high frequency circuits in multiple domains A process of designing a high frequency circuit in multiple domains, such as prototype and production domains, is described. The process begins by obtaining one or more parameters for each domain, such as physical parameters defining, for each layer of the substrate... | 04/20/2004 |
| 4831594 | Process and device for refreshing an array of dynamic memory cells during precharge of the column lines The device refreshes the cells of an array of dynamic memory cells a row at a time during precharging of the bit or column lines. Normal access to read or write to the cells also refreshes them. Refresh circuits connect to the row line between the row add... | 05/16/1989 |
