Abstract: A data reproduction apparatus is adapted to receive a first piece of caption information including a first piece of control information for displaying a caption on the screen of a television receiving set and a second piece of caption information including a second piece of control information for displaying the caption in a language different from that of the first piece of caption information, the apparatus comprising a controller for displaying the first and second pieces of caption information simultaneously without overlap by modifying the value of at least either of the first and second pieces of control information.

Abstract: A data reproduction apparatus is adapted to receive a first piece of caption information including a first piece of control information for displaying a caption on the screen of a television receiving set and a second piece of caption information including a second piece of control information for displaying the caption in a language different from that of the first piece of caption information, the apparatus comprising a controller for displaying the first and second pieces of caption information simultaneously without overlap by modifying the value of at least either of the first and second pieces of control information.

Abstract: A caption information receiving apparatus for extracting a caption signal from an input video signal, decoding the digital signal contained in the caption signal and displaying the decoded data on a display screen. A keyboard equipped with keys selects a caption mode and caption information. A caption data memory stores the digital signals. A caption data extractor extracts a digital signal contained in the caption signals. A decoding controller stores the digital signals in the caption data memory and decodes the digital signal read from the caption data memory when an instruction for replaying the caption information is provided. A display controller provides caption information based on the decoded data from the decoding controller and defines a caption display area for displaying the caption information in the caption display area of the display screen.

Abstract: In case teletext data superimposed on a television broadcast signal are to be displayed as an auxiliary picture on a main picture on which a television video signal is displayed, the teletext data must be compressed. If the logical outputs of two pixels themselves adjacent in the horizontal direction are made data after the compression as this compressing method, depending on the contents of the teletext data, the data after the compression will not reproduce the original information in some case. In this invention, the teletext data are divided into blocks of a predetermined size and the "dense" and "rare" densities of the respective blocks are judged. The optimum compressing method losing no information is selected in response to this judging result.