MY103842A - Rapid access teletext decoder arrangement. - Google Patents

Rapid access teletext decoder arrangement.

Info

Publication number
MY103842A
MY103842A MYPI89000287A MYPI19890287A MY103842A MY 103842 A MY103842 A MY 103842A MY PI89000287 A MYPI89000287 A MY PI89000287A MY PI19890287 A MYPI19890287 A MY PI19890287A MY 103842 A MY103842 A MY 103842A
Authority
MY
Malaysia
Prior art keywords
teletext
read
memory
background
stored
Prior art date
Application number
MYPI89000287A
Inventor
Den Hollander Willem
Original Assignee
Rca Licensing Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rca Licensing Corp filed Critical Rca Licensing Corp
Publication of MY103842A publication Critical patent/MY103842A/en

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  • Television Systems (AREA)

Abstract

A TELETEXT DECODER INCLUDES A BACKGROUND OR BUFFER MEMORY (45) OPERATING AS A FIRST-IN, FIRST-OUT (FIFO) MEMORY. THE BUFFER MEMORY (45) IS USED FOR STORING A LARGE NUMBER OF TELETEXT PAGES. A GIVEN VIDEO LINE THAT CONTAINS TELETEXT INFORMATION IS IDENTIFIED AS SUCH BY THE DETECTION OF PART OF A CLOCK RUN-IN SEQUENCE FOLLOWED BY THE FRAMING CODE. THE VIDEO LINE IS THEN STORED IN THE BACKGROUND MEMORY (45). AFTER A USER PAGE REQUEST OCCURS, THE BACKGROUND MEMORY (45) IS READ-OUT BY A DATA PROCESSOR (30) OPERATING IN A FULL CHANNEL MODE OF OPERATION FOR OBTAINING THE INFORMATION OF THE REQUESTED OAGE. AS LONG AS THE READ-OUT OPERATION HAS NOT BEEN TERMINATED, INCOMING TELETEXT DATA IS STORED IN THE BACKGROUND MEMORY (45). THIS ENABLES TELETEXT DATA RECEIVED PRIOR TO TERMINATION OF THE READ-OUT OPERATION TO BE READ OUT AND PROCESSED BY THE DATA PROCESSOR.@@(FIG. 2)
MYPI89000287A 1988-03-18 1989-03-09 Rapid access teletext decoder arrangement. MY103842A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888806479A GB8806479D0 (en) 1988-03-18 1988-03-18 Rapid access teletex decoder

Publications (1)

Publication Number Publication Date
MY103842A true MY103842A (en) 1993-09-30

Family

ID=10633680

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI89000287A MY103842A (en) 1988-03-18 1989-03-09 Rapid access teletext decoder arrangement.

Country Status (2)

Country Link
GB (1) GB8806479D0 (en)
MY (1) MY103842A (en)

Also Published As

Publication number Publication date
GB8806479D0 (en) 1988-04-20

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