| Patent Number |
Title Of Patent |
Date Issued |
| 7630737 |
Method and system for sending location coded images |
December 8, 2009 |
| A system is described that utilizes an imager in a wireless device in a wireless network and tags a digital image with positioning data. |
| 7630458 |
Phase sampling techniques using amplitude bits for digital receivers |
December 8, 2009 |
| The present invention uses at least one amplitude bit to assist the phase-sampling technique used in digital receiver architectures. For digital receivers where the Intermediate Frequency (IF) is an integer multiple of the fundamental frequency f.sub.0, the present invention provides |
| 7586382 |
Methods and systems for temperature related frequency drift compensation |
September 8, 2009 |
| Systems and methods are provided that compensate for frequency drift due to temperature variation without the need for a temperature sensor. In one embodiment, a navigation receiver with an integrated communication device receives a base station reference signal, which is used to per |
| 7577524 |
Method and system for data detection in a global positioning system satellite receiver |
August 18, 2009 |
| A data detection circuit within a global positioning system (GPS) satellite receiver operates to detect and decode data sent in a spread spectrum signal. The data detection circuit receives input from a radio receiver, the information containing data from a plurality of satellites. T |
| 7570208 |
Unassisted indoor GPS receiver |
August 4, 2009 |
| The present invention provides GPS receivers capable of tracking very weak GPS signals particularly in an indoor environment without assistance from an external server or a network. In a preferred embodiment, a GPS receiver initially acquires and locks onto GPS satellite signals to c |
| 7564406 |
Method and apparatus in standalone positioning without broadcast ephemeris |
July 21, 2009 |
| The present invention provides methods and system for enabling a standalone navigation receiver capable of generating receiver specific predicted satellite orbits based on historical navigation data collected by and stored in the receiver. Thus, the navigation receiver is able to use |
| 7555661 |
Power management in digital receivers that adjusts at least one a of clock rate and a bit width |
June 30, 2009 |
| Methods and systems consistent with the present invention provide a method for dynamically controlling power consumption in a digital demodulator circuit by varying clock rates and bit widths of demodulator components including an analog to digital converter, decimation filter, OFDM |
| 7551133 |
GPS navigation using interacting multiple model (IMM) estimator and probabilistic data associati |
June 23, 2009 |
| A method for GPS navigation which uses an interacting multiple-model (IMM) estimator with a probabilistic data association filter (PDAF) improves navigation performance. The method includes (a) providing two or more models of GPS navigation, with each model characterized by a model state |
| 7546423 |
Signal processing system control method and apparatus |
June 9, 2009 |
| A signal processing system control method and apparatus are described. Various embodiments include a signal processing system with multiple subsystems. A method for controlling the signal processing system includes storing channel records in a designated area of shared memory. Channe |
| 7546395 |
Navagation processing between a tracker hardware device and a computer host based on a satellite |
June 9, 2009 |
| Methods and systems consistent with the present invention provide a host based positioning system. The host based positioning system includes a tracker hardware interface that connects to a dedicated hardware space vehicle tracker to a host computer. The tracker hardware interface re |
| 7545854 |
Doppler corrected spread spectrum matched filter |
June 9, 2009 |
| A method and apparatus for a spread spectrum matched filter with Doppler correction suitable for using in a radio frequency receiver. The system includes a signal sampler operable to receive signal data and a Doppler shift system operable to provide a Doppler shift correction value. The |
| 7545850 |
Analog compression of GPS C/A signal to audio bandwidth |
June 9, 2009 |
| The present invention discloses analog methods and circuits for compression of the GPS C/A signal to audio bandwidths to improve TTFF times, as well as decreasing auto correlation errors in systems that employ the methods and devices disclosed. |
| 7545319 |
Configurable satellite positioning system receivers with programmable inputs |
June 9, 2009 |
| Generic SATPS receivers and methods for configuring generic SATPS receivers that include a plurality of outputs are provided. These configurable SATPS receivers are adapted to be utilized in at least one of a plurality of particular SATPS receiver applications, and can also include a |
| 7545317 |
Method and apparatus for navigation data downloads from weak signals |
June 9, 2009 |
| The present invention provides systems and methods that enable a standalone receiver capable of downloading navigation data under weak signal conditions. In an embodiment, a standalone navigation receiver generates predicted satellite orbits based on the tracking history of the satel |
| 7512385 |
GPS RF front end IC with programmable frequency synthesizer for use in wireless phones |
March 31, 2009 |
| A GPS RF Front End IC containing a Programmable Frequency Synthesizer is disclosed. The GPS RF front end IC having a programmable frequency synthesizer allows a relatively fixed internal frequency plan while able to use a number of different reference frequencies provided by the host |
| 7508340 |
Generic Satellite Positioning System receivers with selectable inputs and outputs |
March 24, 2009 |
| Generic SATPS receivers and methods for configuring generic SATPS receivers that include a plurality of outputs are provided. These configurable SATPS receivers are adapted to be utilized in at least one of a plurality of particular SATPS receiver applications, and can also include a |
| 7466778 |
Memory efficient OFDM channel estimation and frequency domain diversity processing |
December 16, 2008 |
| A frequency domain diversity DVB receiver device includes multiple antenna ports for receiving radio signals, and radio signal processing circuits connected to the antenna ports that convert the received radio signals into digital samples. The digital samples from the different antenna |
| 7466209 |
System and method for providing temperature correction in a crystal oscillator |
December 16, 2008 |
| A system and method for providing temperature compensation in a oscillator component (such as a crystal oscillator component) that includes a closely-located temperature sensing device. The crystal oscillator component in example systems and methods is exposed to a temperature profil |
| 7463893 |
Method and apparatus for implementing a GPS receiver on a single integrated circuit |
December 9, 2008 |
| The present invention discloses a method and apparatus for allowing for GPS receiver functions and GPS digital processing functions to co-exist and function optionally or nearly optimally while in close proximity on a common die. |
| 7459970 |
Method and apparatus for optimizing power dissipation in a low noise amplifier |
December 2, 2008 |
| A method and a low noise amplifier are provided such that the low noise amplifier has a power dissipation that is adaptive to the noise interference levels. The low noise amplifer includes (i) first, second and third differential amplifiers connected in series each having a terminal |
| 7456782 |
Timing calibration for fast signal reacquisition in navigational receivers |
November 25, 2008 |
| The present invention provides GPS receivers with clock calibration for fast reacquisition of GPS signals after waking up from a sleep state or coming out of signal blockage. In a preferred embodiment, a GPS receiver comprises a local clock based on an oscillator, e.g., crystal oscillato |
| 7451378 |
Method and apparatus for memory optimization in MPE-FEC system |
November 11, 2008 |
| Systems and methods are provided for processing Multi-Protocol Encapsulation (MPE) under the DVB-H standard. The system includes: (a) a receive buffer having entries organized as columns and rows, the addresses for the entries in the receive buffer being arranged sequentially in colu |
| 7436907 |
Analog compression of GPS C/A signal to audio bandwidth |
October 14, 2008 |
| The present invention discloses analog methods and circuits for compression of the GPS C/A signal to audio bandwidths to improve TTFF times, as well as decreasing auto correlation errors in systems that employ the methods and devices disclosed. |
| 7418066 |
Multi-function device with positioning system and shared processor |
August 26, 2008 |
| A multi-function device with a positioning function and a real time positioning engine is disclosed. The device contains also a shared processor used by the positioning function and other functions of the device, such as a mobile radio-communication function. The positioning engine p |
| 7408505 |
Multi-function device with positioning system and shared processor |
August 5, 2008 |
| A multi-function device with a positioning function and a real time positioning engine is disclosed. The device contains also a shared processor used by the positioning function and other functions of the device, such as a mobile radio-communication function. The positioning engine p |
| 7406114 |
Pseudo-noise correlator for GPS spread-spectrum receiver |
July 29, 2008 |
| A terrestrial C/A code GPS receiver system digitally samples, filters and stores a segment of 11 half chips of the received composite as a binary number and multiplexes this number for parallel correlation with each of a series of multibit code replicas for the satellites to be tracked. |
| 7403154 |
Determining position without use of broadcast ephemeris information |
July 22, 2008 |
| Devices and methods are described for determining position information without broadcast ephemeris data for extended time periods. A server or client device receives or collects historical state data of satellites of a satellite-based positioning system and generates predictions of futur |
| 7388939 |
Fractional-R frequency synthesizer |
June 17, 2008 |
| A fractional-R synthesizer having a divider with rational increments and configurable in rational steps able to generate a plurality of frequencies in rational increments from a reference frequency. A voltage-controlled oscillator frequency (f.sub.VCO) is related to the reference fre |
| 7369830 |
Monolithic GPS RF front end integrated circuit |
May 6, 2008 |
| A highly integrated GPS RF Front End which uses a single conversion stage employs an image rejection mixer stage to eliminate the need for an image reject RF bandpass filter. Also a relatively high sample rate A/D is employed which allows a timeless monolitic IF Filter to be used. The |
| 7365680 |
Location services system that reduces auto-correlation or cross-correlation in weak signals |
April 29, 2008 |
| The present invention discloses methods, apparatuses, and systems for eliminating auto- and cross-correlation in weak signal CDMA systems, such as GPS systems. The invention uses parallel data paths that allow standard correlation of signals in parallel with verification of the lock |
| 7356445 |
Measurement fault detection |
April 8, 2008 |
| The present invention discloses a method and an apparatus for improving measurement fault detection in a sequential measurement processing estimator, and is particularly applied to Global Positioning Receivers. |
| 7355551 |
Method for a space-efficient GPS receiver |
April 8, 2008 |
| In a Global Positioning System (GPS) receiver, rather than storing both GPS satellite ephemeredes and almanacs to the GPS receiver's on-chip non-volatile memory, storing into the non-volatile memory only the more recent ephemeris or almanac data for each satellite. When an ephemeris |
| 7355535 |
Signal processing providing lower downsampling losses |
April 8, 2008 |
| Methods and devices for processing GPS signals are provided. The device includes: means for storing one or more lookup tables, each lookup table comprising a plurality of entries, each entry comprising an input segment and an output segment, wherein the output segment is a system respons |
| 7352322 |
GPS-based positioning system for mobile GPS terminals |
April 1, 2008 |
| The present invention discloses a GPS system that uses call-processor intelligence to determine the mode of operation of a GPS receiver located in a GPS terminal. The modes are selected based on the availability of network facilities, the GPS information that can be acquired, or user |
| 7324045 |
System and method for fast initialization of navigational satellite signal receivers |
January 29, 2008 |
| The present invention provides a method and apparatus for a satellite navigation receiver to lock onto satellite signals in the cold start mode with no information on the receiver position, the satellite position, or time estimates stored in the receiver's memory. All satellites in a |
| 7317418 |
Global positioning apparatus and method for using a temperature compensated oscillator to perfor |
January 8, 2008 |
| A global positioning receiver unit utilizes a temperature compensated oscillator and a unit controller. The temperature compensated oscillator generates a clock signal, and the unit controller is configured to track GPS time based on the clock signal while the receiver unit is in a sleep |
| 7313207 |
Reducing memory usage in noncoherent signal processing |
December 25, 2007 |
| A method for detecting a positioning signal includes (a) correlating a segment of a received positioning signal with a reference signal of a selected code phase and frequency to obtain a correlation value, (b) if the correlation value is less than a predetermined minimum, assigning the |
| 7304606 |
Mode determination for mobile GPS terminals |
December 4, 2007 |
| The present invention discloses a system for determining the position of a GPS terminal. The system comprises a GPS terminal, a location aiding server, and a communications system. Messages are passed between the GPS terminal and the server, as well as within the GPS terminal, to determi |
| 7301992 |
Multipath processing for GPS receivers |
November 27, 2007 |
| A GPS receiver system determines the presence of trackable signals at code delays less than the prompt delay being tracked for a particular, signal and changes the prompt delay to correspond to the smallest code delay having a trackable signal. Trackable signals at large code delays are |
| 7299024 |
Compensation for frequency adjustment in mobile communication-positioning device with shared osc |
November 20, 2007 |
| In a mobile communication device, a method for compensating for a frequency adjustment in an oscillator shared between a communication circuit and a positioning signal receiver is provided. In one embodiment, a method for determining the operating frequency of an oscillator detects a |
| 7295633 |
Triple multiplexing spread spectrum receiver |
November 13, 2007 |
| A GPS car navigation system derives GPS position update information from motion of the car along the actual track. Turns along the track are detected when they actually occur and are compared with the predicted turns so that the time and position at the actual turn can be used to upd |
| 7280626 |
Synthesizing coherent correlation sums at one or multiple carrier frequencies using correlation |
October 9, 2007 |
| Techniques are provided for synthesizing a long coherent I and Q correlation integral at a particular frequency by synthetically combining a sequence of shorter correlation integrals at the same or different frequency. Techniques are also provided for acquiring a carrier-modulated si |
| 7269511 |
Method and system for data detection in a global positioning system satellite receiver |
September 11, 2007 |
| A data detection circuit within a global positioning system (GPS) satellite receiver operates to detect and decode data sent in a spread spectrum signal. The data detection circuit receives input from a radio receiver, the information containing data from a plurality of satellites. T |
| 7263440 |
Satellite based positioning method and system for coarse location positioning |
August 28, 2007 |
| A satellite based positioning method and system including storing satellite sub-almanac data on a mobile station. Embodiments include using the sub-almanac data to take measurements and calculate a coarse position of the mobile station. Embodiments further include a location server c |
| 7251562 |
Network assisted pseudolite acquisition for enhanced GPS navigation |
July 31, 2007 |
| The invention comprises a set of pseudolites deployed throughout an area of interest in which the GPS constellation visibility may be limited, such as in and around some high-rise buildings in an urban setting, and a database of these installed pseudolite locations with their PRN numbers |
| 7246011 |
Combined parallel and sequential detection for GPS signal acquisition |
July 17, 2007 |
| A two part signal acquisition process includes a parallel signal detection process and signal verification/false alarm rejection process. A massively parallel architecture of acquisition correlators search a large region of the time-frequency uncertainty during the parallel signal de |
| 7239272 |
Partial almanac collection system |
July 3, 2007 |
| A protocol independent interface for processing, within a mobile device, protocol aiding data received at a call processor with a Global Positioning System ("GPS") interface, where the protocol aiding data is produced according to a Geolocation Server Station protocol is disclosed. T |
| 7239271 |
Partial almanac collection system |
July 3, 2007 |
| A partial almanac collection system is disclosed. The partial almanac collection system includes a global positioning system ("GPS") module, and a controller in signal communication with the GPS module and the call processor, the controller instructing the GPS module to collect piecewise |
| 7236883 |
Aiding in a satellite positioning system |
June 26, 2007 |
| The invention relates to an aided Global Positioning System (GPS) subsystem within a wireless device. The wireless device includes a wireless processing section capable of receiving signals from a wireless network and a GPS subsystem having a radio frequency (RF) front-end capable of |
| 7212156 |
Multi-function device with positioning system and shared processor |
May 1, 2007 |
| A multi-function device with a positioning function and a real time positioning engine is disclosed. The device contains also a shared processor used by the positioning function and other functions of the device, such as a mobile radio-communication function. The positioning engine p |
