Apparatus for incorporating digital signals with a standard TV s

Details Apparatus for incorporating digital signals with a standard TV s Apparatus for incorporating digital signals with a standard TV s

1989-12-18

1991-07-02

Shepperd, John W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358143, 358144, H04N 706, H04N 708

Patent

active

050290037

ABSTRACT:
A system for transmitting digital sound signals in a standard broadcast video signal includes apparatus for removing video signals from a portion of the vestigial sideband of the broadcast video signal and inserting coded digital sound signals therein.

REFERENCES:
patent: 2635140 (1953-04-01), Dome
patent: 2838597 (1958-06-01), De Vrijer
patent: 3530232 (1970-09-01), Reiter et al.
patent: 4639786 (1987-01-01), Tamer et al.
Television Engineering Handbook; by Benson; p. 21.42, Figure 21-8; Jun. 1986.
Digital Multisound in Television, Feasibility of Filtered 728 kbits/s NICAM with 5.85 MHz Carrier Frequency in System B., CCIR Document 10/41-E; 11/47-E, Jul. 14, 1987.
Y. Yasumoto et al, "An Extended Definition Television System Using Quadrature Modulation of the Video Carrier with the Inverse Nyquist Filter", IEEE Transactions on Consumer Electronics, vol. CE-33, No. 3, Aug. 87, pp. 173-180.
M. Isnardi et al, "Decoding Issues in the ACTV System", IEEE Transactions on Consumer Electronics, vol. 34, No. 1, Feb. 88, pp. 111-120.
"Digital Sound Signals Multiplexed in Quadrature with TV Signals", paper authored by Hitachi Ltd. in ITEJ 17-6-88.

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