Font display and text editing system with character overlay feature
First Claim
1. A font display and text editing system, comprising:
- a display device which is logically broken into a plurality of character spaces;
a memory storing digital information describing the shape of each alpha-numeric character of a set of alpha-numeric characters and each diacritical character of a set of diacritical characters;
human actuable input means for generating a first signal identifying any one of said alpha-numeric and diacritical characters as a base character and a second signal identifying any one of said alpha-numeric and diacritical characters as an overlay character; and
hit mapped memory means responsive to said first and second signals for combining said first and second signals in a manner which causes said base and overlay characters to be displayed as a single complex character in a single said character space of said display device.
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Abstract
A font display and text editing system is disclosed. The system includes a display medium for displaying text characters. A memory stores digital information describing the shape of each alphabetical character of a plurality of sets of alphabetical characters, each of the sets of alphabetial characters defining a respective font. An input device sequentially generates a first signal identifying one of the alphabetical characters as a base character and a second signal identifying a different one of the alphabetic characters as an overlay character. A circuit responsive to the signals displays the base and overlay characters as a single complex character on the display medium.
87 Citations
28 Claims
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1. A font display and text editing system, comprising:
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a display device which is logically broken into a plurality of character spaces; a memory storing digital information describing the shape of each alpha-numeric character of a set of alpha-numeric characters and each diacritical character of a set of diacritical characters; human actuable input means for generating a first signal identifying any one of said alpha-numeric and diacritical characters as a base character and a second signal identifying any one of said alpha-numeric and diacritical characters as an overlay character; and hit mapped memory means responsive to said first and second signals for combining said first and second signals in a manner which causes said base and overlay characters to be displayed as a single complex character in a single said character space of said display device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification