All-digital universal synchronizer

Abstract

the invention relates to an all-digital universal synchronizer which comprises a receiving module, a measuring and calculating module, a processing module and an output module, wherein the receiving module is used for receiving zero signals and synchronizing signals, the zero signals are output by an encoder of a servo motor, the synchronizing signals are output by projector equipment, and the synchronizing signals and switching frequency of images on a left screen and images on a right screen are synchronous; the measuring and calculating module measures a turned angle from an original point of a polarized lens to a zero position of the encoder, confirms the original point of the polarized lens, and then works out phase difference theta of the original point and the synchronizing signals; when the phase difference theta is bigger than a set value theta S, the processing module adjusts the original point until the phase difference theta is smaller than the set value theta S; and the output module transmits information of the original point after being adjusted to a controller of a three dimensional polarizer, and controls rotating signals of the servo motor through the controller. The all-digital universal synchronizer is good in generality. All functions of the all-digital universal synchronizer can be achieved through a very hardware description language (VHDL), and can be achieved through a Verilog language in a programming mode. The all-digital universal synchronizer can achieve high-precision synchronization, bring terrific visual enjoyment to audiences and obviously relieve eyestrains.

Description

Technical field [0001] The present invention relates to the technical field of TV movie playback, and more specifically, the present invention relates to an all-digital universal synchronizer. Background technique [0002] In recent years, the TV film industry has ushered in a wave of 3D technology. The system for playing digital 3D movies is mainly composed of five parts: digital 3D film source, digital 3D projection equipment, polarized imaging system, metal screen and polarized glasses. The emergence of digital 3D players has a history of more than 10 years, and has now become a standard configuration in major cinemas. There are two main ways to realize the polarization image system, one is the passive type based on the circular polarizer, such as the patent CN101950123A. The other is an active solution based on LCD polarization, such as the patent US8177366B2. Patent CN101950123A discloses a passive 3D image playback system, which includes a 3D polarizer, a polarized lens, ...

AI Technical Summary

Problems solved by technology

[0003] The above two methods can realize the playback of 3D movies, but if the synchronization signal in the passive system is not synchronized with the time of the initial rotation origin and produces a phase difference θ, ghosting will occur, and the audience will feel dizzy during watching. Severe cases can cause tearing eyes, vomiting, etc.

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