TELETEXT DATA GENERATING AND ENCODING METHOD ON THE AUDIOVISUAL MAGNETIC TAPE AND THE TELETEXT DATA PLAYER

摘要

A method for generating and encoding the image-text data of visual audio tape and a device for play the image-text data are disclosed. Its steps include editing said data by the invented file format, compressing by said invented conpression method and data format, compiling, packetting to obtain data frames, encoding by the minimal record unit composed of two bits, recording the image text information on right channel of cassette tape, recording relative background music on left channel, copying said visual audiotapes, and reproducing the audio signals and text information by the visual audio recorder with decoder.