Apparatus and method for controlling receiving rate of GPS signal
First Claim
Patent Images
1. 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.
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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.
5 Citations
20 Claims
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1. An apparatus for processing an input signal, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for controlling a receiving rate of a GPS signal, comprising:
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a GPS signal processing unit for detecting GPS data and status information from a GPS signal;
a receiving rate controlling unit for forcedly outputting normal status information and GPS data previously outputted for a predetermined time when the detected status information indicates an abnormal status; 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. - View Dependent Claims (10, 11, 12, 13)
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14. An apparatus for controlling a receiving rate of a GPS signal, comprising:
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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. - View Dependent Claims (15, 16, 17)
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18. A method for controlling a receiving rate of a GPS signal, comprising:
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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. - View Dependent Claims (19, 20)
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Specification