Interactive digital television front end high unvoiced sound video interface system
A technology of digital TV and video interface, applied in the field of high-definition audio and video interface system of interactive digital TV front-end, can solve problems such as deficiencies, and achieve the effects of small convergence error, reduced network construction cost, and reduced user cost
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[0029] Embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals represent like elements.
[0030] As shown in FIGS. 3-4 , the interactive digital TV front-end high-definition audio and video interface system of this embodiment includes a service station 500 , a digital TV front-end 100 , a cable 200 , an interface conversion module 300 and a digital TV terminal 400 . The service station 500 sends radio frequency signals carrying audio and video services. The digital TV front end 100 includes a wireless receiving module 110 , a signal processing module 120 and a signal interface module 130 . The wireless receiving module 110 of the digital TV front end receives radio frequency signals carrying audio and video services. In this embodiment, the wireless receiving module 110 includes an antenna. The signal processing module 120 of the digital TV front end 100 performs TDS-OFDM demodulation, decoding and synchroni...
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