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US 6,788,248 B2Granted
Apparatus and method for controlling receiving rate of GPS signal
AssigneeLG Electronics Inc.
InventorSeong-Ho Lee
Life of this patent
Estimating the term…
Abstract
An apparatus and method for controlling a receiving rate of a GPS signal performs position/time control of a mobile terminal for a predetermined time even if the receiving status of the GPS signal is poor, by outputting normal status information and normal GPS data outputted previously. Then, outputting the actual abnormal status information and GPS data after a predetermined time has passed since the output of the normal GPS data.
Claims22
An apparatus for processing an input signal, comprising:
- a processor that processes an input signal of a prescribed channel having one of a normal status or an abnormal status:
- a detector circuit that detects whether the input signal has a normal status or an abnormal status;
- and
- an output generator that generates an output signal based on the input signal, wherein if the detector circuit detects the abnormal status, the output generator uses a previous input signal of the prescribed channel to generate the output signal,
- wherein the processor comprises:
- an analog/digital converter that converts an analog global-positioning system signal to a digital signal;
- and
- a plurality of data detectors, each of the plurality of data detectors processing the digital signal of a prescribed channel to generate the input signal, and
- wherein the detector circuit comprises:
- a status detector that detects the status of the input signal and generates a prescribed status signal if the abnormal status is detected;
- a status generator connected to the status detector that generates a generated normal status in response to the prescribed status signal;
- and
- a counter responsive to the prescribed status signal, the counter generating a counter signal after a prescribed period of time.
10 more elements
An apparatus for controlling a receiving rate of a GPS signal, comprising:
- a GPS signal processing unit for detecting GPS data and status information from a GPS signal;
- a receiving rate controlling unit for forcibly outputting normal status information and GPS data previously outputted for a predetermined time using an output generator that generates an output signal based on an input signal when the detected status information indicates an abnormal status and the output generator uses a previous input signal of a prescribed channel to generate the output signal;
- and
- a clock signal generator for performing position and time control of a mobile terminal according to the GPS data and the status information outputted from the receiving rate controlling unit.
1 more element
An apparatus for controlling a receiving rate of a GPS signal, comprising:
- a GPS signal processing unit, the GPS signal processing unit receiving GPS data and status information for the GPS signal and outputting the received GPS data and the received status information;
- a status detecting unit coupled to the GPS signal processing unit, the status detecting unit checking a status of the received status information;
- the status detecting unit outputting the received GPS data and the received status information when the status is normal, and outputting a drive signal for a predetermined time when the status is abnormal;
- a memory coupled to the status detecting unit, the memory storing GPS data and outputting the stored GPS data when the status is abnormal;
- a normal status generator coupled to the status detecting unit, the normal status generator generating normal status information in response to the driver signal;
- and
- a counter coupled to the status detecting unit, the counter performing a count operation in response to the driving signal and outputting a time-out signal.
4 more elements
A method for controlling a receiving rate of a GPS signal, comprising:
- detecting GPS data and status information in a GPS satellite signal;
- outputting the detected GPS data and the detected status information when the detected status information indicates a normal status, and forcibly outputting generated status information and previous GPS data for a predetermined time when the detected status information indicates an abnormal status;
- and
- performing position/time control of a mobile terminal according to the outputted GPS data and the outputted status information.
1 more element
An apparatus for processing an input signal comprising:
- a processor that processes an input signal of a prescribed channel having one of a normal status or an abnormal status;
- a detector circuit that detects whether the input signal has a normal status or an abnormal status;
- and
- an output generator that generates an output signal based on the input signal wherein if the detector circuit detects the abnormal status, the output generator uses a previous data having a normal status within a same data transmission operation to generate the output signal,
- wherein the output generator generates an output signal based on the input signal, and
- wherein if the detector circuit detects the abnormal status, the output generator uses a previous input signal of a prescribed channel to generate the output signal and a receiving rate controlling unit outputs normal status information instead of the abnormal status information to a micro processor unit (MPU) for a predetermined time and outputs GPS data previously stored in a memory to the MPU instead of currently received GPS data.
3 more elements
Dependencies are inferred from the claim text.