De-interlacing circuit for simultaneous readout of paired fields

Dynamic magnetic information storage or retrieval – Monitoring or testing the progress of recording

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Details

360 331, 358909, 358906, 358335, 35821326, H04N 592

Patent

active

047500573

ABSTRACT:
A video circuit for use with an electronic still camera retrieves a fully-interlaced frame signal during a single field interval from a full-frame imager and provides . . . during the same interval . . . a pair of de-interlaced field signals for recording upon paired tracks on a magnetic disk. By switching the inputs and outputs of a set of clock-driven line delay elements according to variations of the line rate, the frame signal is converted into simultaneously accessible field signals, at the same time accounting for a time base discrepancy that arises due to readout from the imager at double the line rate.

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The Accordian Image, by Theuwissen et al., Electron: Device Society Meeting, 1984.
Interlacing in Charge Coupled Imaging Devices by Sequin, IEEE Trans on Electron Devices, vol. Ed-20, No. 6, Jun. 1973.

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