Television receiver comprising a teletext decoding circuit and a

Details Television receiver comprising a teletext decoding circuit and a Television receiver comprising a teletext decoding circuit and a

1985-04-12

1987-10-20

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358141, 358146, H04N 704

Patent

active

047017945

ABSTRACT:
A television receiver which is suitable for displaying teletext pages comprises a control system including a microcomputer. The microcomputer is coupled to a volatile memory which comprises a plurality of page number registers. A page number can be temporarily stored in each of these registers. With the aid of a keyboard the user makes known which page numbers he wants to have stored in the different registers and the stored page numbers represent a first series of pages. One single read key (RCL) is provided for the display of such a page. Each time this key is depressed once, a different page belonging to the first series appears on the picture screen. The sequence in which the pages appear is the same as the sequence in which the user has keyed-in the relevant page numbers. This sequence can be interrupted by the occurrence of a preselected operating instruction in response to which a number of teletext pages not associated with said first series can be displayed on the picture screen. Thereafter, the display of the teletext pages of the first series can be continued.

REFERENCES:
patent: 4099258 (1978-07-01), Parsons
patent: 4161728 (1979-07-01), Insam
patent: 4611227 (1986-09-01), Brockhurst et al.
"Enhanced UK Teletext Moves Towards Still Pictures"; John P. Chambers; IEEE Transactions on Consumer Electronics; vol. CE-26; pp. 527-532, Aug. 1980.
"Computer Controlled Teletext"; J. R. Kinghorn; Electronic Components and Applications; vol. 6, No. 1; 1984; pp. 15-29.

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