Two stage synchronous controlling method for multi-player digital film playing system

A technology of digital cinema and synchronous control, applied to parts of TV systems, TVs, electrical components, etc., can solve problems that have not yet been discovered, and achieve a strong sense of presence, grand scenes, and majestic effects
CN1719869AInactive Publication Date: 2006-01-11SHANGHAI JIAO TONG UNIV +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2006-01-11
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

This invention relates to a two-level synchronous control method for a multiplayer digital cinema play system. When receiving the instruction for playing assigned films, a synchronous controller sends the play instructions to the players via communication links, which start the display prepared process by storing medium fetch film data, decoding and filling the decode data into pre-displayed buffer zone so as to enter into the display preparation state to realize rough synchronization. The synchronous controller transmits synchronous trigger signals to the players via the synchronous transmission circuit, the players display the first image of the pre-display buffer zone after receiving the signals immediately and finish the successive preparation work from fetching of the medium and decoding of film data to fill the data into the zone to enter into the continuous playing state.
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Description

technical field

[0001] The invention relates to a control method in the technical field of digital cinema. More specifically, it is a two-level synchronous control method for a multi-player digital movie playback system. Background technique

[0002] Ring screen and dome screen movies are special forms of movies that can show all the scenes in a wide range. When watching this kind of movie, people stand in the central area of ​​the auditorium and are surrounded by a wide picture, coupled with the cooperation of the omnidirectional stereo sound effect consistent with the movie content, it can produce a strong sense of immersion . Most of the popular films of this type in the world are multi-film film systems. Someone once proposed a synchronization method for a film-based ring-screen movie system. In this method, when shooting, it is necessary to use a special camera that can ensure the synchronous operation of multiple films; The sound reproduction equipment runs synchr...

Claims

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