Satellite television program recognizing method
A technology for satellite TV and program identification, which is applied in the field of overseas programs and can solve problems such as the inability to control the signal output of overseas programs.
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Embodiment 1
[0030] The first method is to use pure software to realize the identification of satellite TV programs. Specifically, the method includes the following steps: 1) Divide all TV station name codes into two categories according to allowed viewing and not allowed viewing, and store them in the memory of the receiver. 2) Receiver (see attached figure 1 and attached figure 2Explanation) After receiving the satellite TV program and outputting the TS stream through the channel decoder, the receiver performs demultiplexing processing on the TS stream, and uses software to extract the code information of the station name from it, and 3) encode the extracted station name information Comparing and judging with the station name code stored in the memory in advance, so as to identify the TV station from which the program is sent, and whether it belongs to the TV program that is allowed to watch. 4) If it is a TV program that is allowed to be watched, the TS stream of the program can be d...
Embodiment 2
[0032] The second method also uses pure software to realize the identification of satellite TV programs. Specifically, the method includes the following steps: 1) only storing codes of the station names of the television stations that are allowed to be watched in the memory of the receiver. 2) After the receiver receives the satellite TV program and outputs the TS stream through the channel decoder, the receiver performs demultiplexing processing on the TS stream, and uses software to extract the coded information of the station name from it. 3) Convert the extracted station name to The coded information is compared with the code of the station name stored in the memory in advance, and judged, thereby judging whether the program belongs to a TV program that is allowed to be watched. 4) If it is a TV program that is allowed to be watched, the TS stream of the program can be demultiplexed, decoded, etc. normally through the control of the demultiplexing by the microprocessor, an...
Embodiment 3
[0034] Such as image 3 As shown, according to the third embodiment of the present invention, an ASIC is inserted in the satellite digital television receiver, including: a station name extraction circuit 31, a PID matching filter 32, a microprocessor 33, a memory 34, and the like.
[0035] According to the third embodiment, an ASIC (see attached image 3 illustrate). The ASIC can be independent or integrated with a digital demodulator chip or a demultiplexing demodulator chip.
[0036] According to the satellite TV program recognition method of the third embodiment, comprise the following steps: 1) this ASIC memory built-in special software and TV station station name coding, the storage mode of station name coding has two kinds the same with the first and second embodiment Way. 2) When the TS stream output after the receiver channel decoding passes through the chip, the built-in microprocessor console name extraction circuit extracts the station name code from the TS stre...
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