High resolution television transmission system

Details High resolution television transmission system High resolution television transmission system

1987-02-20

1988-09-20

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358142, H04N 704

Patent

active

047729490

ABSTRACT:
A television transmission system capable of transmitting and receiving a high-resolution television signal having a wider than standard aspect ratio, which high-resolution television signal is, in part, compatible with standard television receivers. In an NTSC format, the high-resolution television signal has an active bandwidth of 14.0 MHz and includes picture frames having 657 scanning lines and a 51/3:3 aspect ratio. This high-resolution television signal is converted into two transmission signals, a first of which being compatible with standard television receivers and including a center low-frequency portion of said high-resolution television picture frame, the number of lines therein having been converted to 525 lines, and a second of which including the remaining information in said high-resolution television signal.

REFERENCES:
patent: 4670783 (1987-06-01), Naden

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