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Image Number 4 for United States Patent #7321692.
A method, computer readable medium and device are provided for freeing memory in a device with limited memory, in which a plurality of pen strokes have been recorded, in electronic form in the memory in association with a page address of one of a plurality of logical pages and a recording time. The method, computer readable medium and device provide for identifying page address for the plurality of pen strokes recorded in the device; identifying the recording time of the most recently recorded pen stroke associated with each of the identified page addresses; selecting the page address among the identified page addresses which has the oldest most recently recorded pen stroke; and deleting all the pen strokes associated with the selected page address.
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