Picture data writing apparatus and method picture data reading apparatus and method picture data writing and reading apparatus and method and memory card

A picture data writing method for writing fetched picture data into a memory card, comprising the steps of:

• fetching picture data;
• fetching sound data;
• applying a first identification code to the fetched picture data when the fetched picture data is moving picture data but applying a second identification code to the fetched picture data when the fetched picture data is still picture data and applying a third identification code to the fetched sound data;
• and
• writing the moving picture data, still picture data and/or sound data together with the corresponding identification code or codes into said memory card.

A picture data reading apparatus for reading out a memory card in which moving picture data, still picture data and/or sound data compressed by a predetermined method or methods are recorded together with a data identification code or codes for identification among the data, comprising:

• reading means for reading out data from said memory card;
• first decompression means for decompressing the moving picture data read out by said reading means;
• second decompression means for decompressing the still picture data read out by said reading means;
• third decompression means for decompressing the sound data read out by said reading means;
• and
• supply means for supplying the read out moving picture data, still picture data and/or sound data to said first decompression means, second decompression means and/or third decompression means, respectively, in accordance with the identification code or codes.

A picture data reading method for reading out a memory card in which moving picture data, still picture data and/or sound data compressed by a predetermined method or methods are recorded together with a data identification code or codes for identification among the data, comprising the steps of:

• reading out data from said memory card;
• decompressing the moving picture data read out;
• decompressing the still picture data read out;
• decompressing the sound data read out;
• and
• supplying the read out moving picture data, still picture data and/or sound data in accordance with the identification code or codes so that the data may be decompressed in the first decompression step, second decompression step and/or third decompression step, respectively.

A picture data writing and reading apparatus for compressing and writing fetched picture data into a memory card and reading out the image data from said memory card and decompressing the image data, comprising:

• fetching means for fetching picture data and/or sound data;
• identification code application means for applying a first identification code to the fetched picture data when the fetched picture data is moving picture data but applying a second identification code to the fetched picture data when the fetched picture data is still picture data and applying a third identification code to the fetched sound data;
• writing and reading means for writing the moving picture data, still picture data and/or sound data together with the corresponding identification code or codes into said memory card and reading out the written data from said memory card;
• first compression and decompression means for compressing the fetched moving picture data and decompressing the read out moving picture data;
• second compression and decompression means for compressing the fetched still picture data and decompressing the read out still picture data;
• third compression and decompression means for compressing the fetched sound data and decompressing the read out sound data;
• and
• supply means for supplying the moving picture data, still picture data and/or sound data fetched or read out to said first compression and decompression means, second compression and decompression means and/or third compression and decompression means, respectively, in accordance with the identification code or codes.

A picture data writing and reading method for compressing and writing fetched picture data into a memory card and reading out the image data from said memory card and decompressing the image data, comprising the steps of:

• fetching picture data and/or sound data;
• applying a first identification code to the fetched picture data when the fetched picture data is moving picture data but applying a second identification code to the fetched picture data when the fetched picture data is still picture data and applying a third identification code to the fetched sound data;
• writing the moving picture data, still picture data and/or sound data together with the corresponding identification code or codes into said memory card and reading out the written data from said memory card;
• compressing the fetched moving picture data and decompressing the read out moving picture data;
• compressing the fetched still picture data and decompressing the read out still picture data;
• compressing the fetched sound data and decompressing the read out sound data;
• and
• supplying the moving picture data, still picture data and/or sound data fetched or read out in accordance with the identification code or codes so that the data may be compressed and decompressed in the first, second and/or third mentioned compression and decompression steps, respectively.

A memory card system, comprising:

• a memory card;
• and
• a picture data writing apparatus for writing fetched picture data into said memory card;
• said picture data writing apparatus including first fetching means for fetching picture data, second fetching means for fetching sound data, identification code application means for applying a first identification code to the fetched picture data when the fetched picture data is moving picture data but applying a second identification code to the fetched picture data when the fetched picture data is still picture data and applying a third identification code to the fetched sound data, and writing means for writing the moving picture data, still picture data and/or sound data into said memory card together with the corresponding identification code or codes.

A memory card system, comprising:

• a memory card in which moving picture data, still picture data and/or sound data compressed by a predetermined method or methods are recorded together with a data identification code or codes for identification among the data;
• and
• a picture data reading apparatus for reading out data from said memory card;
• said picture data reading apparatus including reading means for reading out data from said memory card, first decompression means for decompressing the moving picture data read out by said reading means, second decompression means for decompressing the still picture data read out by said reading means, third decompression means for decompressing the sound data read out by said reading means, and supply means for supplying the read out moving picture data, still picture data and/or sound data to said first decompression means, second decompression means and/or third decompression means, respectively, in accordance with the identification code or codes.

A system, comprising:

• a memory card in which moving picture data, still picture data and/or sound data compressed by a predetermined method or methods are recorded together with a data identification code or codes for identification among the data;
• a picture data reading apparatus for reading out data from said memory card;
• and
• an apparatus connected to said picture data reading apparatus by a bus for receiving the data read out from said memory card by said picture data reading apparatus;
• said picture data reading apparatus including reading means for reading out data from said memory card, first decompression means for decompressing the moving picture data read out by said reading means, second decompression means for decompressing the still picture data read out by said reading means, third decompression means for decompressing the sound data read out by said reading means, and supply means for supplying the read out moving picture data, still picture data and/or sound data to said first decompression means, second decompression means and/or third decompression means, respectively, in accordance with the identification code or codes.