Digital television signal processing chip system and television

[0022] figure 1 The structure of the digital TV signal processing chip system provided by the first embodiment of the present invention is shown, and for the convenience of description, only the parts related to the embodiment of the present invention are shown.

[0023] The digital TV signal modulation unit 11 is used for modulating the received digital TV high frequency signal, and outputting the modulated digital TV signal.

[0024] In the embodiment of the present invention, the digital TV high-frequency signal is a digital TV signal in high-definition format. The digital television signal modulation unit 11 specifically includes a tuner unit 111 and an intermediate amplifier unit 112, specifically:

[0025] The tuner unit 111 is used to receive digital TV high-frequency signals, and perform channel selection, high-frequency signal amplification and frequency conversion processing, and output digital TV intermediate frequency signals; and

[0026] The intermediate amplifier

[0038] figure 2 A structural diagram of the audio-video signal processing unit provided by the second embodiment of the present invention is shown, and for convenience of description, only parts related to the embodiment of the present invention are shown.

[0039] The audio and video signal processing unit 13 specifically includes an audio signal processing unit 131 and a video signal processing unit 132, wherein:

[0040] The audio signal processing unit 131 is configured to receive the decoded audio signal, directly perform sound effect processing on the decoded audio signal, and output it.

[0041] In the embodiment of the present invention, the audio signal processing unit 131 processes the decoded 720P signal or 1080I audio signal through the sound effects of the audio processing system (SRS), such as treble, bass, balance, and surround sound effects, and then passes through the power amplifier. The amplified signal is output to the speaker for sound.

[0042] The video