Linked list encoding method and control apparatus for...

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

Category

G - Physics

Subcategory

06

Subsubcategory

F

CPC

375/22, 354/236.

IPC codes

G06F 3/153 (2006.01) G09G 3/00 (2006.01) G09G 5/42 (2006.01)

Type

Patent

Patent number

CA 1053815

Description

LINKED LIST DATA ENCODING METHOD & CONTROL APPARATUS FOR REFRESHING A CATHODE RAY TUBE DISPLAY Abstract of the Disclosure 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.

Application Number

232624

Affiliated with

Also associated with

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