Patent application number | Description | Published |
20080316092 | METHODS FOR PROCESSING EXTERNAL CORRECTION MESSAGES, CORRECTING POSITION MEASUREMENTS OF GNSS RECEIVER, AND RELATED APPARATUSES - Methods and apparatuses for processing external correction messages in a GNSS receiver are provided. One of the proposed methods includes providing a first storage unit; receiving a plurality of external correction messages from different data sources, wherein a plurality of GNSS differential correction data are carried by the plurality of external correction messages; and storing a portion of the GNSS differential correction data in the first storage unit without storing remaining GNSS differential correction data in the GNSS receiver. | 12-25-2008 |
20090002233 | METHODS 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 satellite without referring to the measurement predictions; determining if measurements derived from the reference satellite are consistent with the measurement predictions; and searching for satellite signals of other satellites without referring to the measurement predictions if the measurements derived from the reference satellite are determined to be inconsistent with the measurement predictions. If the measurements derived from the reference satellite are determined to be inconsistent with the measurement predictions, navigation information for use in the generation of the measurement predictions is determined to be stale. | 01-01-2009 |
20090058719 | METHOD OF SWITCHING ELECTRONIC APPARATUS BETWEEN DIFFERENT MODES ACCORDING TO CONNECTION STATUS OF WIRELESS CONNECTION AND ELECTRONIC APPARATUS THEREOF - An electronic apparatus with power saving functionality is provided. The electronic apparatus includes a signal processing device configured for performing a predetermined signal processing operation; a wireless communication device coupled to the signal processing circuit for communicating with an external wireless communication device through a wireless connection; and a controller coupled to the signal processing device and the wireless communication device for switching the signal processing device between a first mode and a second mode according to a connection status of the wireless connection. The signal processing device operating in the second mode has less power consumption than the signal processing device operating in the first mode. | 03-05-2009 |
20090066567 | METHODS AND APPARATUS FOR OBTAINING ACCURATE GNSS TIME IN A GNSS RECEIVER - A method for obtaining GNSS time in a GNSS receiver includes: deriving a relationship between a first clock signal and the received GNSS time; latching a second clock signal and the first clock signal at a first latching point to obtain a clock value A | 03-12-2009 |
20090073036 | METHODS FOR PROCESSING CORRECTION MESSAGES, CORRECTING POSITION MEASUREMENTS OF GNSS RECEIVER, AND RELATED APPARATUSES - Methods and apparatuses for processing correction messages in a GNSS receiver are provided. One of the proposed methods includes providing a first storage unit; receiving a plurality of correction messages from at least one data sources, wherein a plurality of assistance data are carried by the plurality of correction messages; and storing a portion of the assistance data in the first storage unit without storing remaining assistance data in the GNSS receiver. | 03-19-2009 |
20090115657 | GNSS RECEIVER SYSTEM AND RELATED METHOD THEREOF - A global navigation satellite system (GNSS) receiver system includes a first mobile GNSS receiver and a second mobile GNSS receiver. The first mobile GNSS receiver includes: a first receiver logic for receiving satellite signals and determining positioning related information according to the satellite signals; a data provider logic for providing at least an assisted data according to the positioning related information; and a first communication interface for outputting the assisted data. The second mobile GNSS receiver includes a second communication interface, for communicating with the first communication interface to receive the assisted data from the communication interface; a data collector logic for collecting assisted information from the assisted data; and a second receiver logic for determining positioning information of the second mobile GNSS receiver according to the assisted information and satellite signals. | 05-07-2009 |
20100033373 | METHODS AND APPARATUS FOR OBTAINING ACCURATE GNSS TIME IN A GNSS RECEIVER - A method for obtaining GNSS time in a GNSS receiver includes: deriving a relationship between a first clock signal and the received GNSS time; latching a second clock signal and the first clock signal at a first latching point to obtain a clock value A | 02-11-2010 |
20100045523 | METHODS AND APPARATUS FOR COMPENSATING A CLOCK BIAS IN A GNSS RECEIVER - A method for compensating a clock bias in a Global Navigation Satellite System (GNSS) receiver includes deriving at least one clock drift value comprising a first clock drift value corresponding to a first time point, and calculating the clock bias according to the at least one clock drift value and at least one interval within the time period between the first time point and a specific time point after the first time point. An apparatus for compensating a clock bias in a GNSS receiver is also provided. | 02-25-2010 |
20110050495 | METHODS AND APPARATUS FOR OBTAINING GNSS TIME IN A GNSS RECEIVER - A method for obtaining GNSS time in a GNSS receiver includes: obtaining a time relationship between a first clock signal and the received GNSS time; obtaining a clock value B | 03-03-2011 |
20110163915 | METHODS AND APPARATUS FOR OBTAINING GNSS TIME IN A GNSS RECEIVER - A method and apparatus for obtaining Global navigation Satellite System (GNSS) time in a GNSS receiver are provided. The following steps are included: obtaining a time relationship between a first clock signal and the received GNSS time; obtaining a first clock value of a second clock signal and an first associated clock value of the first clock signal at a first time point; calculating a first GNSS time corresponding to the first clock value of the second clock signal according to the first associated clock value and the time relationship; obtaining a second clock value of the second clock signal and an second associated clock value of the first clock signal at a second time point; and calculating a second GNSS time corresponding to the second associated clock value, according to the first GNSS time, the first clock value and the second clock value of the second clock signal. | 07-07-2011 |
20120044107 | APPARATUS FOR PERFORMING GLOBAL NAVIGATION SATELLITE SYSTEM CONTROL, AND ASSOCIATED METHODS AND STORAGE MEDIA - An apparatus for performing Global Navigation Satellite System (GNSS) control includes: a GNSS receiver arranged to obtain/calculate at least one position of the apparatus; and an assistance data provider implemented within the apparatus, wherein the assistance data provider is arranged to provide the GNSS receiver with assistance data for use of obtaining/calculating the at least one position, and the assistance data provider selectively selects a specific assistance mode from a plurality of assistance modes for the GNSS receiver according to at least one predefined rule, with the assistance data corresponding to the specific assistance mode. Associated methods and storage media are also provided. | 02-23-2012 |
20120274509 | GNSS RECEIVER AND METHOD FOR DETERMINING WHETHER TO SWITCH FROM ONE OPERATION STATE TO ANOTHER OPERATION STATE ACCORDING TO STATE SWITCHING CRITERION AND POSITIONING INFORMATION - A method for controlling a global navigation satellite system (GNSS) receiver operated in a first operation state includes: providing a state switching criterion; obtaining a positioning information; determining whether to switch from the first operation state to a second operation state according to the obtained positioning information and the state switching criterion, wherein the power consumption of the GNSS receiver operating under the first operation state and the second operation state is different. | 11-01-2012 |