05867625 is referenced by 40 patents and cites 13 patents.

A consumer digital video cassette recorder may record an advanced television signal having an MPEG like signal format. The predictive nature of the MPEG like signal format requires that additional I frame data be generated and recorded together with a normal a play speed data stream to facilitate non-standard speed, or trick play reproduction. Additional I frame data streams are generated specifically for each replay speed and are written within recorded tracks to facilitate reproduction at the predetermined speeds. Various inventive methods for the derivation of full resolution and reduced resolution trick play data streams are disclosed. Inventive trick play data stream generation is disclosed for real time recording by consumer apparatus and non-real time normal and trick play data stream generation for use with pre-recorded digital media.

Title
Digital VCR with trick play steam derivation
Application Number
8/817490
Publication Number
5867625
Application Date
April 11, 1997
Publication Date
February 2, 1999
Inventor
David Lionel McLaren
Mountain View
CA, US
Agent
Francis A Davenport
Joseph J Laks
Joseph S Tripoli
Assignee
Thomson Consumer Electronics
IN, US
IPC
H04N 5/91
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