US 7,458,015 B2
Electronic document reading system and method
Shengjin Wang, Tokyo (Japan)
Assigned to NEC Corporation, Tokyo (Japan)
Appl. No. 10/484,662
PCT Filed Dec. 12, 2002, PCT No. PCT/JP02/13024
§ 371(c)(1), (2), (4) Date Aug. 19, 2004,
PCT Pub. No. WO03/054708, PCT Pub. Date Jul. 03, 2003.
Claims priority of application No. 2001-377987 (JP), filed on Dec. 12, 2001.
Prior Publication US 2004/0268221 A1, Dec. 30, 2004
Int. Cl. G06F 15/00 (2006.01); G06F 17/00 (2006.01)
U.S. Cl. 715—229  [715/234; 715/238; 715/242] 11 Claims
OG exemplary drawing
 
1. A terminal apparatus for an electronic-document viewing system that allows viewing of an electronic document stored on a server in response to a viewing request from a terminal through a communication network, the terminal apparatus comprising:
means for selecting a resolution level of the electronic document based on, at least, a transmission speed of the communication network;
means for receiving the electronic document containing data matching the viewing request based on a similarity table generated by the server, the similarity table being generated for each electronic document stored on the server and containing, for each pattern and area of the electronic document, at least information regarding resolution level, similarity between the resolution level and original pattern or area and amount of data of the pattern or area at each resolution level; and
means for giving the viewing request for the electronic document at the selected resolution level.