Cursor for an on-the-fly digital television display having an in

Details Cursor for an on-the-fly digital television display having an in Cursor for an on-the-fly digital television display having an in

1976-04-23

1978-06-06

Chapnick, Melvin B.

Boots, shoes, and leggings

340324A, G06F 314, G06K 1520

Patent

active

040939960

ABSTRACT:
A cursor circuit for an on-the-fly digital television display system. The host digital television display system employs an intermediate buffer which stores a coded representation of the symbol only during the period of its display. In order to obtain access of the encoded symbol in storage with a conventional light pen, the circuit secures the identity of the encoded symbol in the intermediate buffer during the first display frame. This identity is the address of the symbol as stored in a refresh buffer. This identity is made available for accessing the refresh buffer during a second display frame. This enables convenient access of the encoded symbol in an on-the-fly digital television display.

REFERENCES:
patent: 3505666 (1970-04-01), Thorpe
patent: 3506875 (1970-04-01), Watanabe et al.
patent: 3509350 (1970-04-01), Gundrum
patent: 3651508 (1972-03-01), Scarborough, Jr. et al.
patent: 3832693 (1974-08-01), Ishizaki et al.
patent: 3852721 (1974-12-01), Tucker et al.
patent: 3891890 (1975-06-01), Yasuda et al.
patent: 3944988 (1976-03-01), Mayer
patent: 3973245 (1976-08-01), Belser
patent: 3996582 (1976-12-01), Sinobad
patent: 3997891 (1976-12-01), Iwamura et al.
patent: 4011546 (1977-03-01), Kawata et al.

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