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Image data recording system including memory card

  • US 5,200,863 A
  • Filed: 02/12/1992
  • Issued: 04/06/1993
  • Est. Priority Date: 04/30/1987
  • Status: Expired due to Term
First Claim
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1. A video data recording system, comprising:

  • housing means;

    optical means arranged at least partly in said housing means for forming an optical image on a predetermined plane in said housing means;

    image data processing means arranged in said housing means for receiving said optical image as a still image and for producing electronic image data representative of said still image;

    buffer memory means coupled to said image data processing means for storing the electronic image data derived from said image data processing means;

    detachable memory means detachably mounted to said housing means and electrically coupled to said buffer memory means when mounted to said housing means, for storing a limited number of independent electronic image data which are supplied from said buffer memory means;

    output terminal means arranged on said housing means and coupled for outputting said electronic image data derived from said detachable memory means via said buffer memory means when said detachable memory means is mounted to said housing means;

    write control means arranged in said housing means for controlling a writing operation of said electronic image data supplied from said buffer memory means into said detachable memory means when said detachable memory means is mounted to said housing means;

    read-out control means arranged in said housing means for controlling a reading out operation of said electronic image data to said output terminal means via said buffer memory means when said detachable memory means is mounted to said housing means;

    said read-out control means including;

    transfer means for repeatedly transferring to said output terminal means, said electronic image data representative of one of the still images stored in said detachable memory means via said buffer memory means, such that said electronic image data representative of said one still image is repeatedly transferred to said output terminal means a plurality of times over a given time period;

    transfer time sensing means for sensing whether or not said given time period during which said electronic image data of said one still image is repeatedly transferred by said transfer means, corresponds to a predetermined time period; and

    transfer control means for stopping the electronic image data transfer of said electronic image data of said one still image by said transfer means responsive to said given time period during which said transfer means repeatedly transfers said electronic image data of a same still image exceeding said predetermined time period; and

    peripheral memory means outside of said housing means and detachably coupled to said output terminal means and capable of storing a large number of independent image data, for storing said repeatedly transferred electronic image data, corresponding to a plurality of a same still image, output from said output terminal means, said large number being substantially greater than said limited number;

    said peripheral memory means including reproducing means for continuously and sequentially reproducing said same electronic image data of said same still image stored in said peripheral memory means, whereby each said same still image stored in said peripheral memory means is sequentially reproduced for such predetermined time period.

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