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Coordination of Line Ending Codes in Asynchronous Communication

IP.com Disclosure Number: IPCOM000045381D
Original Publication Date: 1983-Mar-01
Included in the Prior Art Database: 2005-Feb-06
Document File: 2 page(s) / 14K

Publishing Venue

IBM

Related People

Baird, SK: AUTHOR [+3]

Abstract

With the proliferation of word processing equipment throughout the office systems field, systems are being developed whereby such word processing equipment may communicate with other data processing equipment. A great deal of data processing equipment presently in operation in the field may be communicated with using asynchronous communication protocols.

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Coordination of Line Ending Codes in Asynchronous Communication

With the proliferation of word processing equipment throughout the office systems field, systems are being developed whereby such word processing equipment may communicate with other data processing equipment. A great deal of data processing equipment presently in operation in the field may be communicated with using asynchronous communication protocols.

Because of the great variety of data processing equipment which must be communicated with, application programs associated with the word processing equipment must have the capability of varying the line ending codes received from or sent to a host data processor. The present system provides the operator at a word processing terminal with a choice of possible word endings on a menu. In this manner, the operator may appropriately designate the correct line ending code for the new lines being sent so that the application program for the equipment receiving such a code will be able to implement the command. Likewise, the operator on a word processing terminal will have the capability of selecting the appropriate line ending code so that the received code will be properly translated in the internal word processor system as a received line ending code.

For example, with respect to received line code, the operator may select the line code or line code sequence which will be translated in the word processor as the internal code for a new line.

The ability to select the line ending compatible with the application program in the host data processor being communicated with allows the word processor to communicate successfully within a large range of host application programs. A typical menu on a display screen associated with a word processing terminal relative to a received line is as follows: Your

ID Item Choice Possible Choices

c Receive New Line 1 1=CR LF 2=CR

3=LF 4=XOFF.

The four possible choices in the above are possible line ending designations; the operator must select the one which appropriately represents a line ending to the word processor.

Similarly, the operator at the word processor can select or control the sequence to be sent at all line endings so that the resultin...