US 7,321,692 B2
Method, device and computer program product for processing information in a memory
Mattias Bryborn, Lund (Sweden); and Erik Sparre, Lomma (Sweden)
Assigned to Anoto AB, Lund (Sweden)
Filed on Nov. 13, 2002, as Appl. No. 10/292,711.
Claims priority of provisional application 60/333166, filed on Nov. 27, 2001.
Claims priority of application No. 0103770 (SE), filed on Nov. 13, 2001.
Prior Publication US 2003/0159010 A1, Aug. 21, 2003
Int. Cl. G06K 9/46 (2006.01)
U.S. Cl. 382—202  [382/313] 19 Claims
OG exemplary drawing
 
1. A method 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 comprising:
identifying page addresses 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.