Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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

Inactive Publication Date: 2006-01-11
SHANGHAI JIAO TONG UNIV +1
View PDF1 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In further searches, no literature reports identical or similar to the subject of the present invention have been found

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Two stage synchronous controlling method for multi-player digital film playing system
  • Two stage synchronous controlling method for multi-player digital film playing system
  • Two stage synchronous controlling method for multi-player digital film playing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] What present embodiment adopted is a digital ring-screen movie player. The system includes 9 identical high-definition digital movie players 4 and a synchronous controller 1 . The synchronous controller 1 and nine high-definition digital movie players 4 are connected to the same Ethernet hub through their respective Ethernet interfaces. The Ethernet cable and the Ethernet hub constitute the communication link 2 between the central controller and the nine high-definition digital movie players 4 . The synchronous signal transmission circuit 3 connects the synchronous controller 1 and the high-definition digital movie player 4 by means of LVDS. The synchronous controller 1 transmits a periodic clock signal and a synchronous trigger signal to any high-definition digital movie player 4 through the synchronous signal transmission circuit 3 . Each high-definition digital movie player 4 uses the periodic clock signal as a reference to generate a local display reference clock ...

Embodiment 2

[0029] What present embodiment adopted is a digital ring-screen movie player. The system includes 9 identical high-definition digital movie players 4 and a synchronous controller 1 . The synchronous controller 1 and nine high-definition digital movie players 4 are connected to the same Ethernet hub through their respective Ethernet interfaces. The Ethernet cable and the Ethernet hub constitute the communication link 2 between the central controller and the nine high-definition digital movie players 4 . The synchronous signal transmission circuit 3 connects the synchronous controller 1 and the high-definition digital movie player 4 by means of LVDS. The synchronous controller 1 transmits only one synchronous trigger signal to any high-definition digital movie player 4 through the synchronous signal transmission circuit 3 . Each high-definition digital cinema player 4 independently generates a local display reference clock, so there is no strict synchronization between the loc...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/073G11B31/00
Inventor 杨华陈立李逸王尧余松煜
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com