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Class 342/357.15 - Satellite selection (i.e., tracking or acquisition)


Subclass of Class 342 - Communications: directive radio wave systems and devices (e.g., radar, radio navigation)
Definition: Subject matter under 357.06 including hardware for choosing
No. of patents: 314
Last issue date: 01/31/2012


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NumberTitleIssue Date
8106824Tracking satellite signal
Techniques, systems and apparatus are described for tracking a satellite signal. In one aspect, an apparatus includes a tracking module to generate a satellite-based measurement result by tracking a satellite signal received from a satellite. The tracking module inc...
01/31/2012
7800530Method and system for providing assistance data for A-GPS location of handsets in wireless networks
A system and method for determining the location of a wireless device. A boundary for an approximate area in which the wireless device is located is determined and a plurality of satellites may be determined as a function of the boundary. Assistance data is transmit...
09/21/2010
7782252System and method for GPS signal acquisition
A method for acquiring a GPS signal includes receiving a GPS signal portion over a coarse acquisition (C/A) frame period. The received GPS signal portion is stored and correlated to each of a plurality of versions of a reference coarse acquisition code to obtain a r...
08/24/2010
7764227Positioning apparatus
A positioning apparatus includes a correlator 30 for calculating a correlation between the pseudo pattern code of each of satellites 1 and 2 and each of SPS signals associated with the satellites 1 and 2, and for outputting a corre...
07/27/2010
7755544Method for correcting reference position information, server system, and reference position information correcting system
A method for correcting reference position information is provided. A reference position information correction judging section 62 of an assistance server 50 saves location information in a location information storage and saving section 65, and...
07/13/2010
7750848Spread spectrum software receiver
A spread spectrum signal receiver comprises a radio signal processing unit, at least partly implemented in software running on a processor. The processing unit determines a candidate collection of subsets of signal sources from a group of potential sources, by the c...
07/06/2010
7728768Positioning method
A reception environment is determined to be a multipath environment when the difference (positioning altitude difference) between the maximum value (maximum altitude) and the minimum value (minimum altitude) of the altitudes of candidate present positions P of respe...
06/01/2010
7719468Terminal device, method of controlling terminal device, and recording medium
A terminal device searches for a satellite signal by performing a correlation process over a predetermined first accumulation time within a predetermined frequency range in units of search frequencies at specific intervals. When the terminal device has failed in sea...
05/18/2010
7710317Method for GPS positioning in a weak signal environment
The present invention is a method for GPS positioning in a weak signal environment. The method includes obtaining assistance data for a GPS signal from a satellite at a predetermined time, wherein the assistance data including predicted navigation data, Doppler shif...
05/04/2010
7710318Method of enhanced cold start and associated user interface for navigational receivers
The present invention provides systems and methods for reducing the ‘cold start’ TTFF of navigation receivers. The systems and methods receive geographical information from a user, such as the nearest city, state or country, and use this geographical information...
05/04/2010
7705778Satellite navigation receiver having configurable acquisition and tracking engines
A satellite navigation receiver having a flexible acquisition and tracking engine architecture. The flexible acquisition engine has a reconfigurable delay line that can be used either as a single entity or divided into different sections. Consequently, it can be con...
04/27/2010
7701391Acquisition and encoding of GPS codes
A method for acquiring Global Positioning System (GPS) code includes describing GPS code as a Low Density Parity Check (LDPC) code, and decoding the LDPC code to achieve acquisition by directly solving for the correct code phase. ...
04/20/2010
7692581Positioning device, electronic instrument, and storage medium storing program
A slice set for a specific period of time is acquired from a storage area of a memory which is a ring buffer while changing the read position, and the signal strength total value of each slice set is calculated. The signal strengths of the slices included in the max...
04/06/2010
7692582Method and arrangements relating to satellite-based positioning
A method, an apparatus and a computer program for providing assistance data for satellite based positioning of mobile stations operating in a first cell of a cellular radio communication system utilizing ranging signals transmitted by satellites. A sequence of assis...
04/06/2010
7692583GPS position measuring device
A GPS position-measuring device includes a altitude-information memory for storing altitude information of a moving object, a combination determining unit for determining GPS-satellite combinations from GPS satellites that can be tracked, a position measuring unit f...
04/06/2010
7679558Terminal device, positioning method, and recording medium
A terminal device includes a plurality of search channel sections which search for a positioning satellite, a candidate reception frequency calculation section which calculates a candidate reception frequency of a first acquisition target satellite by causing the se...
03/16/2010
7671796Satellite search method
A method for searching satellites is disclosed. In the method of the present invention, the satellites are selected to consist of a group, and searching is conducted in this group. The group size is predetermined for each stage so as to be the most appropriate for v...
03/02/2010
7663541Method of tracking radio frequency signals
Embodiments of the invention are directed to a method of keeping track of and staying tuned to a transmitter even when a receiver is moving at a relatively high speed. Electronic equipment carried on fast moving vehicles and comprising receiving means can experience...
02/16/2010
7646338Method of optimization of processing of location data in the presence of a plurality of satellite positioning constellations
The present invention concerns a method of optimization of processing of signals from satellite positioning systems in the case where at least two satellite systems cohabit and are utilized to obtain the position of a receiver. One of the systems is given pre...
01/12/2010
7636060Method and apparatus for collecting subframes of satellite navigation data
A method and apparatus for collecting subframes of navigation data of satellites are disclosed. In the method of the present invention, the subframe is divided into several sub-units, each sub-units includes one or more words. When a receiver receives a subframe wit...
12/22/2009
7633440Positioning receiver
A positioning receiver is shown having one or more receiving channels for receiving a signal from a positioning station, a controlling element for controlling the reception of the signal from the positioning station, and a clock generator for generating a clock sign...
12/15/2009
7629926Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas
Locating satellites (e.g., GPS) are culled into a preferred group having a longest dwell time based on a time passing through an ellipsoid arc path through a cone of space, and communicated to mobile devices within a particular region (e.g., serviced by a particular...
12/08/2009
7623070Cross-correlation mitigation method and apparatus for use in a global positioning system receiver
A method and apparatus mitigating the effects of cross-correlation signals on received satellite signals in a Global Positioning System (GPS) receiver is described. MS-Assisted and MS-Based cross-correlation detection and mitigation methods and apparatus are describ...
11/24/2009
7616153Electronic device and time adjustment method
An electronic device having a reception unit that receives satellite signals from positioning information satellites orbiting the Earth; a time information generating unit that generates time information; a time correction information storage unit that stores time c...
11/10/2009
7612714Satellite search method
A method for searching satellites in a cold start state. The method of the present invention, a first satellite, which is predetermined or randomly selected, is searched. Then, a second satellite to be searched is selected according to the searching result (hit or m...
11/03/2009
7595752Method and apparatus for enhanced autonomous GPS
Method and apparatus for locating position of a remote receiver is described. In one example, long term satellite tracking data is obtained at a remote receiver. Satellite positioning system (SPS) satellites are detected. Pseudoranges are determined from the remote ...
09/29/2009
7586441Methods and apparatuses for searching for satellite signals
Methods and apparatuses for searching for satellite signals are provided. One of the proposed methods of searching for satellite signals includes: searching for satellite signals according to measurement predictions; searching for satellite signals of a reference sa...
09/08/2009
7586442GPS for communications facility records
Methods and systems are disclosed for enhancing line records with Global Positioning System coordinates. Global Positioning System information is acquired and associated with an address. A line record is assembled for the address using the Global Positioning System ...
09/08/2009
7579987Low earth orbit satellite providing navigation signals
Low earth orbit (LEO) satellites are used to provide navigation signals. In one embodiment, a method of providing a LEO signal from a LEO satellite includes providing a plurality of transmit channels over a plurality of transmit slots. The transmit channels comprise...
08/25/2009
7579986Method and system for all-in-view coherent GPS signal PRN codes acquisition and navigation solution determination
A method and system of the present disclosure allow for a more robust detection of GPS satellite ranging signals based on a simultaneous, all-in-view coherent PRN code signal processing scheme rather than acquisition of GPS signals one at a time. Additionally, the m...
08/25/2009
7573423Method of acquiring satellite data
The present invention provides a method of acquisition of satellite data by a mobile device including a radio navigation satellite system (RNSS) receiver. The method includes: the receiver receiving a signal transmitted by a plurality of satellites and corresponding...
08/11/2009
7570208Unassisted indoor GPS receiver
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 sate...
08/04/2009
7557751Terminal device, method of controlling terminal device, and recording medium
A terminal device searches for a satellite signal by performing a correlation process over a predetermined first accumulation time within a predetermined frequency range in units of search frequencies at specific intervals. When the terminal device has failed in sea...
07/07/2009
7548199Radiation-hardened fast acquisition/weak signal tracking system and method
A global positioning system (GPS) receiver and method of acquiring and tracking GPS signals comprises an antenna adapted to receive GPS signals; an analog radio frequency device operatively connected to the antenna and adapted to convert the GPS signals from an anal...
06/16/2009
7545320Method and device for acquiring signals in a global navigation satellite system
A method is disclosed for acquisition by navigation terminals of navigation signals broadcast by satellites of a global navigation satellite system (GNSS). A communication channel enables nearby terminals to exchange information and to constitute a network to provid...
06/09/2009
7541975Enhanced GNSS signal processing
In accordance with embodiments of the invention, a skyward-looking sensor enables classification of points in its hemispherical field of view as either sky, partial sky or not sky, which in turn enables determination from data supplied by the GNSS receiver of whethe...
06/02/2009
7538726PVT optimization architecture for always-on GPS receivers
A method to reduce power consumption in a device is disclosed. The method generally includes the steps of (A) generating a plurality of pseudorange signals by tracking a plurality of position signals received from a plurality of satellites in a positioning system, a...
05/26/2009
7535418Terminal apparatus, positioning method, control program for terminal apparatus, and computer readable recording medium having recorded therein control program for terminal apparatus
A terminal apparatus includes a control unit and a positioning device. The control unit determines a first satellite-to-be-acquired from among a plurality of SPS satellites, and generates an initial search frequency for the first satellite-to-be-acquired. The positi...
05/19/2009
7522101Positioning system for portable electronic devices
A method for providing information to a GPS receiver includes selecting an apparent location and receiving positioning information corresponding to the positions of a plurality of satellites. The positioning information is combined and transmitted as a radio frequen...
04/21/2009
7498984Positioning system, information supply device, terminal device, control method of information supply device, control program of information supply device, and computer readable recording medium recording control program of information supply device
A positioning system, wherein the communication base station has: signal transmitting means for transmitting a base station timing signal and a communication signal; the terminal has: standard timing signal correcting means; total delay information generating means ...
03/03/2009
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