Control circuit and data processing method of multimedia device

A technology of multimedia data and control circuits, applied in electrical components, image communication, selective content distribution, etc., can solve the problems of black screen and picture frame drop of the display, and achieve the effect of avoiding black screen and improving user experience.

Inactive Publication Date: 2017-11-24
MEDIATEK INC
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] When the conventional time-retrospecting function pauses subsequent playback (decode, pre-play and play the multimedia files stored in the storage unit), it often causes a black screen on the display. The decoded multimedia data, however, the picture being played on the monitor at this time is an earlier picture (has been decoded and processed before playing), and there may be a gap of several frames in the middle (depending on the format of the multimedia data and the multimedia device) depending on the processing speed)

Method used

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  • Control circuit and data processing method of multimedia device
  • Control circuit and data processing method of multimedia device
  • Control circuit and data processing method of multimedia device

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Embodiment Construction

[0027] The content disclosed in the present invention includes a control circuit of a multimedia device and a data processing method thereof, which can avoid black screens and improve user experience. On the premise that implementation is possible, those skilled in the art can select equivalent elements or steps to implement the present invention according to the content disclosed in this specification, that is, the implementation of the present invention is not limited to the embodiments described later.

[0028] figure 2 It is a functional block diagram of an embodiment of the multimedia device of the present invention. The multimedia device 200 includes a control signal receiving unit 210 , a control circuit 220 , a multimedia buffer unit 230 , a storage unit 240 and a frame buffer unit 250 . The control signal receiving unit 210 is used for receiving a control signal, such as a pause signal or a play signal. The control circuit 220 is used for processing the data signal...

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Abstract

The invention relates to a data processing method of a multimedia device. The multimedia device suspends playing of a multimedia datum in response to a suspending signal. The method comprises the following steps: temporarily storing the multimedia datum before reception of the suspending signal in order to obtain a pre-stored multimedia datum; writing the pre-stored multimedia datum into a storage unit in response to the suspending signal; reading the pre-stored multimedia datum from the storage unit in response to a playing signal; and playing the pre-stored multimedia datum.

Description

technical field [0001] The present invention relates to a multimedia device, in particular to a multimedia device with a time-backtracking function. Background technique [0002] Multimedia devices with a timeshift function (such as players, TVs, set-top boxes, etc.) provide a pause function, allowing users to leave temporarily without missing exciting program content. figure 1 It is a flow chart of a known multimedia device playing multimedia data and executing a time-backtracking function. When the multimedia device receives the multimedia signal, it first parses the multimedia signal to obtain the multimedia data carried by the multimedia signal (step S110). After the various headers of the stream, multimedia data with audio and video information is left. Before receiving the pause signal (step S115 is judged as No), directly decode the multimedia data (step S120), and perform pre-play processing (step S130) on the multimedia data before playing, such as de-interleaving...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/433H04N21/2387
CPCH04N21/2387H04N21/433H04N21/4331H04N21/4333
Inventor 谢安昌江佩谕
Owner MEDIATEK INC
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