(19)
(11) EP 0 371 742 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
14.08.1991 Bulletin 1991/33

(43) Date of publication A2:
06.06.1990 Bulletin 1990/23

(21) Application number: 89312312.5

(22) Date of filing: 28.11.1989
(51) International Patent Classification (IPC)5: G09G 1/16
(84) Designated Contracting States:
DE GB

(30) Priority: 28.11.1988 JP 300090/88

(71) Applicant: KABUSHIKI KAISHA TOSHIBA
Kawasaki-shi, Kanagawa-ken 210 (JP)

(72) Inventor:
  • Morita, Hisashi Intellectual Property Division
    Tokyo (JP)

(74) Representative: Muir, Ian R. et al
HASELTINE LAKE & CO. Hazlitt House 28 Southampton Buildings Chancery Lane
London WC2A 1AT
London WC2A 1AT (GB)


(56) References cited: : 
   
       


    (54) Image memory control apparatus


    (57) An image memory control apparatus containing a memory device (220) for storing image data and control data. The apparatus includes a display address generator (210) for generating addresses of the stored image data, a display address selector (211) for selecting desired image data addresses sequentially in a fixed order, a control address generator (100) for generating addresses of the stored control data, an access selector (220) for combining the image data addresses and the control data address and a controller (214) for controlling the access selector (220), wherein the controller (214) includes a circuit (214) for shifting the control of the access selector (220) to immediately access the stored control data in response to an access requesting signal.







    Search report