Terminal for receiving and playing digital television signal

Abstract

The invention relates to a terminal for receiving and playing a digital television signal. The terminal comprises a signal intensity detecting module and a digital television signal receiving device which are respectively used for detecting the intensity of the digital television signal and receiving and treating the digital television signal; and the digital television signal receiving device is capable of controlling the receiving and the treatment on the digital television signal according to the intensity of the digital television signal detected by the signal intensity detecting module. By virtue of the terminal, a TS (transport stream) transmitting basic data subjected to error code protection can be analyzed under the condition of signal channel environmental degradation, audio / video data meeting basic playing requirements are obtained, super-high noise of sound and image quality affecting user watching is avoided, simultaneously the ineffective receiving of the digital television signal is stopped when a signal channel environment is so terrible that the signal can not be received, and therefore, the electricity used by terminal equipment is saved.

Description

technical field [0001] The invention relates to the field of digital television, in particular to a terminal for receiving and playing digital television signals. Background technique [0002] Digital Video Broadcasting (DVB, Digital Video Broadcasting) is a series of internationally recognized digital television open standards maintained by the "DVB Project." The "DVB Project" is an industrial organization composed of more than 300 members. The Joint Technical Committee (JTC) jointly formed by the European Telecommunications Standards Institute (ETSI), the European Committee for Electrotechnical Standardization (CENELEC) and the European Broadcasting Union (EBU) ) initiated. [0003] DVB system transmission methods are as follows: satellite TV (DVB-S and DVB-S2), cable TV (DVB-C), terrestrial TV (DVB-T), handheld terrestrial wireless (DVB-H). These standards define the physical layer and data link layer of the transmission system. The device interacts with the physical l...

AI Technical Summary

Problems solved by technology

[0006] However, the existing DVB transmission is an ideal channel transmission mode. For the receiving users, it often occurs that the receiving channel is bad and the picture is discontinuous or even impossible to watch. If the signal quality is too poor and lasts for a long time, a On the one hand, the user feels very uncomfortable, on the other hand, it also increases the power loss for no reason. From this point of view, the existing transmission methods lack the indication of channel noise and the lack of different transmission strategies corresponding to different channel qualities. formulate

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