Automatic tuning system for a mobile DVB-T receiver
First Claim
1. An automatic tuning system for a mobile DVB-T (Digital Video Broadcasting-Terrestrial) receiver, the system comprising:
- a position detecting system;
a plurality of tuners;
a plurality of demodulators configured to process DVB-T signals, each of which is paired with one of the plurality of tuners, for demodulating signals received by each of the tuners and comparing the strengths of the signals to find an optimum frequency, anda database for setting a frequency code relating to the optimum frequency found by the demodulators, to an area-cell code relating to the receiver position, in a processor,wherein the processor controls the automatic tuning system on the basis of the stored frequency codes and current position data from the position detecting system.
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Accused Products
Abstract
An automatic tuning system for a mobile DVB-T (Digital Video Broadcasting-Terrestrial) receiver includes a position detecting system, a plurality of tuners, a plurality of demodulators configured to process DVB-T signals, each of which is paired with one of the plurality of tuners, for demodulating each of the signals received by each of the tuners and comparing the strengths of the signals. A database sets a frequency code relating to the optimum frequency found by the demodulators, to an area-cell code relating to the receiver position, in a processor. The processor controls the automatic tuning system on the basis of the stored frequency codes and current position data from the position detecting system.
8 Citations
17 Claims
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1. An automatic tuning system for a mobile DVB-T (Digital Video Broadcasting-Terrestrial) receiver, the system comprising:
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a position detecting system; a plurality of tuners; a plurality of demodulators configured to process DVB-T signals, each of which is paired with one of the plurality of tuners, for demodulating signals received by each of the tuners and comparing the strengths of the signals to find an optimum frequency, and a database for setting a frequency code relating to the optimum frequency found by the demodulators, to an area-cell code relating to the receiver position, in a processor, wherein the processor controls the automatic tuning system on the basis of the stored frequency codes and current position data from the position detecting system. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of automatically tuning a mobile DVB-T (Digital Video Broadcasting-Terrestrial) receiver using an automatic tuning system, the method comprising the steps of:
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determining the position of the receiver using a position detecting system; receiving a plurality of signals containing digital broadcast data, via a plurality of tuners; demodulating the received signals via a plurality of demodulators configured to process DVB-T signals, each of which is paired with one of the plurality of tuners, comparing the strengths of the received signals to determine a signal having an optimum frequency; storing codes relating to the optimum frequency and the receiver position in the database. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification