Wang Laboratories, Inc.

Paul Anagnostopoulos

Harold S Koplow

David Moros

Daniel W Corwin

A text-editing system having a keyboard for the input of character and text-editing operation signals, writable text storage, display and writable display storage, and control storage storing groups of microinstructions. A system control is responsive to an interrupt signal from the keyboard for decoding an input signal and deriving therefrom internal control signals for operation of the system, including modification of the display storage and text storage. Apparatus is provided for inputting the character and text-editing operation signals in either of two alternative modes. A select/store circuit is responsive to a select/store signal to select from the text storage character and operation signals modified according to a first alternative mode and to store them in a special condition storage. The system control is thereafter responsive to a recall signal to disable the keyboard interrupt, retrieve the stored signals, and operate according to them. Also, apparatus is provided for inputting the text-editing operation signals in association with a special input condition signal. Displayable representations of such operation signals are accessed, displayed and stored in text storage, but the operation is not carried out. The select/store circuit replaces the displayable representations with executable representations.

Text editing system having flexible repetitive operation capability

An improvement in a text-editing system having a keyboard for inputting character and text-editing operation signals, a CRT display, display storage and text storage, and additional special condition storage; the system responds to a select/store signal to select a sequence of signals from text storage and store it into special condition storage, and thereafter responds to a recall signal to disable the keyboard, retrieve the stored sequence, and operate according to it. A keyboard interactive operation signal can be stored as part of such a sequence. The system responds to retrieval of this signal to permit input of a keystroke string through the keyboard to the display storage and text storage; the system further responds to a keystroke string end indicator, input through the keyboard, to resume recall and execution of the stored sequence.

Growing community of inventors

Burlington, MA, United States of America

Paul Anagnostopoulos