8.5

Pattern Sequence
Pattern Sequences enable the multiplication of the number of available pattern by adding an extra
identification to the document. A Pattern Sequence is also attributed to each Anoto Digital Pen, such as an
incoming PGC file will contain the Pattern, on which the Pattern Sequence is added from the pen database.
The pattern and pattern sequence refer to a specific document in the database. Signing a document with a
pen of which the Pattern Sequence does not match that of the document causes Contamination, which can
cause errors or ink to be placed on the wrong document.
Pen ID
The serial number of the Anoto Digital Pen. It is registered in the PlanetPress Capture database and is
present in each PGC file.
PGCFile
Pen Generated Coordinates; PGC File containing all ink processed while the pen was undocked along with
the Pen ID. It is possible that a single document requires multiple PGC, just as it is possible that a single
PGC have multiple documents.
Pidget
Type of PlanetPress Capture object. Page element used to give instructions to the Anoto pen, as opposed to
recording ink.
PlanetPress Capture Database
A database containing the list of patterns, sequences, registered pens and documents. The Capture
Database can be used by a single server, or by multiple servers in a Client/Server architecture.
Session
The time spent by the pen between events that trigger a new session. Generally a session refers to any ink
in a single page containing a Capture Pattern. Asession can contain ink from multiple fields in any order. A
new session starts whenever a PGCis sent for processing (which erases the data from the pen).
General Considerations
Here are some general considerations in regards to PlanetPress Capture, its environment, the hardware
and the software that interacts with it. Please review these considerations carefully as they may impact