Television – Nonpictorial data packet in television format – Including teletext decoder or display
Patent
1994-04-26
1996-07-02
Groody, James J.
Television
Nonpictorial data packet in television format
Including teletext decoder or display
348473, 348586, 348600, 345144, H04N 5445, H04N 708
Patent
active
055327524
ABSTRACT:
A character image encoding/decoding apparatus is provided with an encoder for encoding character data to a sub-picture with a bit-mapped shape of monochromic character data, separately from an encoding of a main picture, a detector for detecting bit changing positions in a two-dimensional manner from the bit-mapped shape of monochromic character data; an extractor for extracting a contour of the character data; and a developer for developing the character data, the contour and a background of the character data in three domains, respectively.
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Groody James J.
Kabushiki Kaisha Toshiba
Murrell Jeffrey S.
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