Correction buffer
AssigneeInternational Business Machines Corporation
InventorsDouglas E. Hays, James F. Lederer
Life of this patent
Estimating the term…
Abstract
A correction buffer for a typing system in which the correction buffer has a group of records, each record corresponding to an incremental distance on the medium which is printed upon. The records in the correction buffer contain information concerning characters entered through a keyboard by a typist including designations of entered characters and character attributes.
Claims7
In a system for printing characters on a print medium in response to the input of character information from an input device, including a correct ion buffer for storing character information from the input device in the form of character codes, the improvement comprising:
- a correction buffer having a group of records, each record being capable for storing a different character code and each record corresponding to an incremental distance on the print medium such that a character on the print medium spans a distance greater than said incremental distance.
In a system for printing characters on a print medium in response to the input of character information from an input device, including a correction buffer for storing character information from the input device, the improvement comprising:
- a correction buffer having a group of records, each record corresponding to an incremental distance on the print medium and each record in the group of correction buffer records having a first portion for storing graphic character information and a second portion for storing attribute information.
In a typing system having a keyboard, a print mechanism, and a display, a control system for processing keystrokes entered through the keyboard to display characters on the display and to print characters on a print medium at the print mechanism, the control system comprising:
- means for defining a correction buffer having a group of identical record locations, each being capable of storing a different keystroke and each corresponding to an incremental distance on the print medium such that a character on the print median spans a distance greater than said incremental distance;
- means for entering character information in the record locations in the correction buffer in response to the entry of keystrokes through the keyboard;
- and
- means for displaying characters on the display in locations which are related to the correction buffer record locations for character information corresponding to the characters displayed.
In a system for printing characters on a print medium in response to the input of character information from an input device, a method for storing character information from the input device in the form of character codes comprising the steps of:
- defining a correction buffer having a group of identical record locations, each being capable of storing a different character code and each corresponding to an incremental distance on the print medium such that a character on the print medium spans a distance greater than said incremental distance;
- and
- entering character code information in the record locations in the correction buffer in response to the input of character information from the input device.
Dependencies are inferred from the claim text.