Television – Image signal processing circuitry specific to television – Special effects
Patent
1995-05-16
1998-07-14
Flynn, Nathan J.
Television
Image signal processing circuitry specific to television
Special effects
348 12, 348 13, 348 17, H04N 712
Patent
active
057812489
ABSTRACT:
A multimedium terminal apparatus which can simultaneously communicate with maximum N (N: integer of 2 or larger) terminals through a plurality of lines comprises: a plurality of separating circuits, connected to the lines, for respectively extracting the image data of 1/N-reduction picture plane which has been coded by using L/N unit regions among L (L: value which is integer times as large as the value of N) unit regions forming one picture plane of a predetermined full size; and a display position control circuit for changing position designation information of the unit regions included in the image data in a manner such that up to N 1/N-reduction picture planes can be enclosed in one picture plane of a predetermined full size. When images are simultaneously mutually communicated among multipoints, such a communication can be realized by merely preparing one image decoding unit although the decoding units of the number which is equal to only the number of terminals which simultaneously communicate must have been prepared in the conventional case.
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patent: 4734767 (1988-03-01), Kaneko et al.
patent: 4931872 (1990-06-01), Stoddard et al.
patent: 4965819 (1990-10-01), Kannes
patent: 4996592 (1991-02-01), Yoshida
patent: 5280540 (1994-01-01), Addeo et al.
Canon Kabushiki Kaisha
Flynn Nathan J.
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