Method and apparatus for collaborative annotation of a document

Data processing: presentation processing of document – operator i – Presentation processing of document – Layout

Reexamination Certificate

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Details

C715S252000, C709S219000, C358S505000

Reexamination Certificate

active

07346841

ABSTRACT:
A system enables users at different locations (e.g. different geographic locations) to work collaboratively on a document, and to view each other's annotations to the document. Each user can work with a paper document, and make handwritten annotations to the paper document. The system includes a plurality of workstations communicating with a server. Each workstation comprises a document-imaging device, such as a camera, for generating a digital image of the document. Handwritten annotations are identified by image processing, and new annotations made by each user can be tracked in real time. Image bitmaps of the annotations are distributed by the server to each workstation so that each user can view other user's annotations. In one view, the annotations from different users are superimposed in a combined image.

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