Dynamic magnetic information storage or retrieval – Record editing
Patent
1979-02-02
1981-11-03
Eddleman, Alfred H.
Dynamic magnetic information storage or retrieval
Record editing
358 8, 360 35, H04N 576
Patent
active
042988969
ABSTRACT:
The alternate line first picture field of a television picture frame is delayed for one line scan period and the delayed signals are averaged with the currently picked up signals to provide a second field of interpolated lines. Each recorded field is played twice and, for the first playing, a switch actuated at half the vertical scan frequency furnishes the delayed signals to the picture reproducing circuits, while for the second playing of the same field from the record, the averaged signals are supplied to the picture reproduction circuits. For color television signals, only the low-frequency components are processed in the foregoing manner, and the high-frequency components are separated by a frequency dividing network ahead of the delay circuit and added back to the processed low-frequency signals for provision to the picture reproducing circuits.
REFERENCES:
patent: 3359365 (1967-12-01), Kihara
patent: 3882539 (1975-05-01), Faroudja
patent: 3886589 (1975-05-01), Nasu
patent: 4058840 (1977-11-01), Kasprzak
Eddleman Alfred H.
Robert & Bosch GmbH
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