Video recording and reproducing system using Hadamard matrixing

Details Video recording and reproducing system using Hadamard matrixing Video recording and reproducing system using Hadamard matrixing

1975-01-16

1977-09-13

Cardillo, Jr., Raymond F.

Dynamic magnetic information storage or retrieval

Manual input recording

360 22, 360 32, H04N 579

Patent

active

040486583

ABSTRACT:
A video recording system with a plurality of fixed recording-and/or-playing-back magnetic heads has been disclosed. A video signal with a wide frequency band is converted using an Hadamard conversion circuit, to a plurality of narrow band signals. Each narrow band signal is recorded and played back by each fixed head. The Hadamard conversion circuit is very simple in structure and can be provided with digital switching circuits and adders or integrators.

REFERENCES:
patent: 2892886 (1959-06-01), Johnson
patent: 2958735 (1960-11-01), Maler
patent: 3082293 (1963-03-01), Johnson et al.
patent: 3553080 (1971-01-01), Hammond
patent: 3792355 (1974-02-01), Miyata et al.
patent: 3806640 (1974-04-01), Furukawa
patent: 3921209 (1975-11-01), Yoshino et al.
patent: 3937944 (1976-02-01), Radzyner
patent: 3975764 (1976-08-01), Kabayashi et al.
Hadamard Transferm Image Coding, Pratt et al., Proceedings of the IEEE, vol. 57, No. 1, Jan. 1969, pp. 58-68.

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