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Communication Buffer Management Technique

IP.com Disclosure Number: IPCOM000048287D
Original Publication Date: 1982-Jan-01
Included in the Prior Art Database: 2005-Feb-08
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Busch, DG: AUTHOR

Abstract

A buffer management technique is provided for the reformatting of text display buffers used in word processing display terminals during communications between these terminals. In accordance with the present system the text display buffers on either the sending or receiving terminals are reformatted as they approach the full stage only during the period between the end of one line on a CRT screen associated with the buffer and the beginning of the next line.

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Communication Buffer Management Technique

A buffer management technique is provided for the reformatting of text display buffers used in word processing display terminals during communications between these terminals. In accordance with the present system the text display buffers on either the sending or receiving terminals are reformatted as they approach the full stage only during the period between the end of one line on a CRT screen associated with the buffer and the beginning of the next line.

During the period between the end of one line and the beginning of the next line, the processor controlling the display terminal has the maximum available time for the display which, by the way, is a foreground task being carried out simultaneously with various background tasks. By this approach, effective use is made of the controlling processor time. Also, the reformatting is imperceptible to the operator to give very desirable human factors parameters.

As the particular text buffer associated with either a send or receive word processing display terminal approaches its full stage, it enters a predesignated "hot" zone. When the filled lines in the buffer reach this hot zone, the processor will determine the next end of line indicator. At this point, the oldest portion of the buffer is dumped; in the present approach, this is about one-third of the number of lines in the buffer, which makes about one-third of the capacity of the buffer cleaned out and available.

This system selects a reformatting period which will minimize the operator perception during reformatting and will make the most efficient use of processor resources. Reformatting will...