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Method to Identify the Data Stream of a Document Received by Displaywriter System Disclosure Number: IPCOM000059618D
Original Publication Date: 1986-Jan-01
Included in the Prior Art Database: 2005-Mar-08

Publishing Venue


Related People

Carver, MH Grafe, RJ Pekowski, RP [+details]


When an IBM Displaywriter receives a document from another Displaywriter or an IBM Personal Computer, there is no information included with the document which identifies the data stream (L3, L3P, WPIF, ASCII, etc.) of the document. Because different data streams are converted and stored on the Displaywriter diskette in different ways, it is important to be able to differentiate between data streams. Some communication architectures include document profiles which can identify the data stream of the document. However, in some situations, a document profile cannot be sent with the document so another way is needed to identify the data stream. All of the data streams that would be received, except for ASCII, begin with a unique stream of bytes.