Patent ID: 6317160
Filing Date: 2001-11-13
Classification: H04N

Abstract:
A frame conversion device, comprising:a frame conversion unit for recording an image signal optionally selected from a plurality of asynchronous input image signals; anda frame unit for reproducing a recorded signal outputted from the frame conversion unit independently of the operation of the frame conversion unit,wherein the frame conversion unit includes:a plurality of signal input means for obtaining a selected asynchronous image signal from at least one asynchronous image signal,identification signal assigning means for assigning to a non-image region of the selected asynchronous image signal an identification signal for identifying the selected asynchronous image signal,a plurality of frame-converting storage means for storing the selected asynchronous image signal, andsignal output means for selectively reading and then outputting the asynchronous image signal stored in the plurality of frame-converting storage means, andwherein the frame unit includes:identification signal detecting means for detecting the identification signal included in the asynchronous image signal in a unit of frame produced in the frame conversion unit,reproduction controlling means for extracting a frame timing of the asynchronous image signal assigned a predetermined identification signal from the image signals in a unit of frame, andstorage means for, at the frame timing extracted by the reproduction controlling means, storing an asynchronous image signal corresponding to the predetermined identification signal and for continuously outputting said asynchronous image signal.