High resolution television system

Details High resolution television system High resolution television system

1984-12-21

1987-06-02

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358142, H04N 706

Patent

active

046707832

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: 4485401 (1984-11-01), Tan et al.
patent: 4564857 (1986-01-01), LoCicero et al.
patent: 4567508 (1986-01-01), Hulyer
patent: 4574300 (1986-03-01), Hulyer
Jackson et al., "System Concepts in High Fidelity Television", International Broadcasting Conversion, IEE, Sep. 82, pp. 18-21.

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