Data recording device and method, data reproducing device and method, data recording/reproducing device and method, map image data format

A data recording method which has a portable construction and records a digital image signal onto a recording medium, comprising the steps of:

• forming image data from an image pickup signal which is obtained from image pickup means;
• displaying said image data onto a display unit;
• selecting a position on said image data displayed on said display unit and obtaining first position information regarding the selected position;
• obtaining second position information by measuring a position at the position where said first position information has been obtained;
• and
• recording two or more position information data each consisting of said first and second position information together with said image data onto said recording medium.

A data reproducing apparatus which has a portable construction, reproduces a digital image signal from a recording medium, and displays the signal, comprising:

• signal processing means for forming image data from either an image pickup signal which is obtained from image pickup means or the digital image signal which is read out from said recording medium;
• and
• a display unit for displaying said image data,
• wherein if there are two or more position information data each consisting of first position information on said image data displayed on said display unit and second position information obtained by measuring a position at a position where said first position information has been obtained, said second position information at an arbitrary position on said image data is calculated on the basis of said position information data.

A data reproducing method which has a portable construction, reproduces a digital image signal from a recording medium, and displays the signal, comprising the steps of:

• forming image data from either an image pickup signal which is obtained from image pickup means or the digital image signal which is read out from said recording medium;
• and
• displaying said image data onto a display unit,
• wherein if there are two or more position information data each consisting of first position information on said image data displayed on said display unit and second position information obtained by measuring a position at a position where said first position information has been obtained, said second position information at an arbitrary position on said image data is calculated on the basis of said position information data.

A data recording and reproducing apparatus which has a portable construction, records a digital image signal onto a recording medium, reproduces said digital image signal from said recording medium, and displays the signal, comprising:

• signal processing means for forming image data from either an image pickup signal which is obtained from image pickup means or the digital image signal which is read out from said recording medium;
• a display unit for displaying said image data;
• position selecting means for selecting a position on said image data displayed on said display unit and obtaining first position information regarding the selected position;
• position measuring means for obtaining second position information by measuring a position at the position where said first position information has been obtained;
• recording means for recording two or more position information data each consisting of said first and second position information together with said image data onto said recording medium;
• and
• reading means for reading out said image data and said position information data from said recording medium,
• wherein said image data read out from said recording medium is displayed on said display unit, and when said two or more position information data exists on said image data displayed on said display unit, the second position information at an arbitrary position on said image data is calculated on the basis of said position information data.

A data recording and reproducing method which has a portable construction, records a digital image signal onto a recording medium, reproduces said digital image signal from said recording medium, and displays the signal, comprising the steps of:

• forming image data from either an image pickup signal which is obtained from image pickup means or the digital image signal which is read out from said recording medium;
• displaying said image data onto a display unit;
• selecting a position on said image data displayed on said display unit and obtaining first position information regarding the selected position;
• obtaining second position information by measuring a position at the position where said first position information has been obtained;
• recording two or more position information data each consisting of said first and second position information together with said image data onto said recording medium;
• and
• reading out said image data and said position information data from said recording medium,
• wherein said image data read out from said recording medium is displayed on said display unit, and when said two or more position information data exists on said image data displayed on said display unit, said second position information at an arbitrary position on said image data is calculated on the basis of said position information data.