Data processing system with multiple display apparatus

Details Data processing system with multiple display apparatus Data processing system with multiple display apparatus

1982-03-19

1984-01-24

Chan, Eddie P.

Boots, shoes, and leggings

340731, 340798, 340751, G06F 314

Patent

active

044280653

ABSTRACT:
A data processing system comprises a first selection device for selecting a plurality of characters of a first set, the characters of the first set each being defined by a bit map of first predetermined dimensions. A second selection device is capable of selecting a plurality of characters of a second set, the characters of the second set each being defined by a bit map of second predetermined dimensions greater than the first predetermined dimensions. A display device is capable of displaying the selected characters of the first and second sets, and a control device is responsive to the first and second selection devices for controlling the display device to display the selected characters of the first set in a first display area and the selected characters of the second set in a second display area, the first dislay area representing a page of text of characters of the first set, and the second display area representing a magnified portion of the page of text comprised of characters of the second set.

REFERENCES:
patent: 3735383 (1973-05-01), Naka
patent: 3878536 (1975-04-01), Gilliam
patent: 3893100 (1975-07-01), Stein
patent: 4069511 (1978-01-01), Lelke
patent: 4070710 (1978-01-01), Sukonick et al.
patent: 4122533 (1978-10-01), Kubinak
patent: 4193119 (1980-03-01), Arase et al.
patent: 4242678 (1980-12-01), Somerville
patent: 4257044 (1981-03-01), Fukuoka

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