Television signal transmitter combining ground television transmission and network television transmission

Abstract

The invention relates to a television signal transmitter combining ground television transmission and network television transmission. The television signal transmitter comprises a digital voice signal acquisition module, a digital video signal acquisition module, an additional data acquisition module, a packing and multiplexing module, a channel data encoding module, a digital upper frequency conversion processing module, an antenna device, an IP (Internet Protocol) packing module, a UDP (User Datagram Protocol) packing module, a network interface and a conversion control module, wherein the packing and multiplexing module is connected with the digital voice signal acquisition module, the digital video signal acquisition module and the additional data acquisition module to be respectively used for receiving compressed voice data, compressed video data and encoded additional data, packing and multiplexing the data and processing the packed and multiplexed data under the control of the conversion control module so as to obtain ground television signals or network television signals. Through the invention, the functions of the transmitter can be expanded, and ground television signal transmission and network television signal transmission are combined.

Description

technical field [0001] The invention relates to the field of digital television, in particular to a television signal transmitter compatible with terrestrial television transmission and network television transmission. Background technique [0002] Digital TV has gradually replaced the original analog TV because of the characteristics of carrying more programs and better program quality. The current digital TV can be divided into terrestrial TV, satellite TV, terrestrial TV and Internet TV according to the transmission information. Generally, a fixed type of transmitter corresponds to a fixed type of receiver, for example, a terrestrial TV receiver such as terrestrial TV The set-top box only receives signals from terrestrial TV transmitters, but not from other types of receivers. [0003] However, because the types of terrestrial TV, satellite TV, terrestrial TV and Internet TV are only in the channel transmission mode, but are the same in the multiplexing of the code strea...

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Problems solved by technology

[0003] However, because the types of terrestrial TV, satellite TV, terrestrial TV, and Internet TV are only in the channel transmission mode, but are the same in the multiplexing of code streams, the packaging format of transport streams, etc., if you have to face multiple types It is necessary to build multiple types of transmitters, which is a waste of resources, especially when there are many types of receivers but a small number of actual receivers, this waste phenomenon is more prominent

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