Linked list encoding method and control apparatus for refreshing

Details Linked list encoding method and control apparatus for refreshing Linked list encoding method and control apparatus for refreshing

1974-09-23

1976-07-27

Zache, Raulfe B.

Communications: electrical

Digital comparator systems

G06F 314

Patent

active

039720268

ABSTRACT:
Data is configured in 8 bit control characters and 8 bit data characters and stored in a terminal random access memory as a linked list structure. Control apparatus accesses the data stored in the terminal memory in 16 character blocks and identifies the accessed information as representing figures to be displayed, video enhancement features, or program execution path changes. Each two character link provides an address pointer to the next 16 character block of data and control information. The first character block of a line of displayable figures has links to the previous displayable line and the next line of characters to be displayed.
The control apparatus combines internal hardware functions and the linked list encoding structure as implemented by program logic to provide display and control character identification, data access address modification, video display enhancement and selection of alternate character sets.

REFERENCES:
patent: 3500470 (1970-03-01), Barker et al.
patent: 3623068 (1971-11-01), Horgan et al.

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