Picture out of picture feature for wide-screen display

Details Picture out of picture feature for wide-screen display Picture out of picture feature for wide-screen display

1989-12-28

1992-07-14

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 22, H04N 5265, H04N 5260, H04N 545

Patent

active

051308002

ABSTRACT:
A circuit for horizontally displaying a first standard aspect-ratio television picture and a reduced-size second standard aspect-ratio television picture on a wide aspect-ratio television display includes a first and a second video signal supply and a circuit for selecting one of the video signals as the first standard aspect-ratio television picture and the other of the video signals as the second standard aspect-ratio television picture. The video signal for the first standard aspect-ratio television picture is then time compressed while the video signal for the second standard aspect-ratio television picture is initially sub-sampled to reduce the size of the resulting television picture and is then time compressed. These two compressed video signals are then selectively applied to the wide aspect-ratio television display so that the reduced-size second standard aspect-ratio television picture appears beside the first standard aspect-ratio television picture.

REFERENCES:
patent: 4965669 (1990-10-01), Canfield et al.
patent: 5065243 (1991-11-01), Katagiri
Japanese Patent Abstract 63-200681, Aug. 18, 1988. Only the abstract of this reference was submitted.
A Glimpse Into Future Television, Joseph S. Nadan, Jan. 1985, Byte pp. 135-150.

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