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Channel code with embedded pilot tracking tones for DVCR

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2 Author(s)
Kahlman, J.A.H. ; Philips Res. Lab., Eindhoven, Netherlands ; Immink, K.A.S.

The proper functioning of a digital video recorder is largely governed by the selection of a suitable channel code in conjunction with both the detection method and the tracking system. The channel code for the digital video cassette recorder (DVCR) satisfies a variety of design requirements. The paper provides an overview of those requirements. A detailed description is given of the constriction of the new channel code, called 24→25 code, that complies with the given constraints and involves only a minor drawback in terms of the overhead needed. The servo position information is recorded as low-frequency components, pilot tracking tones, which are embedded in the recorded stream of binary digits

Published in:

Consumer Electronics, IEEE Transactions on  (Volume:41 ,  Issue: 1 )