06023553 is referenced by 73 patents and cites 69 patents.

Method and apparatus for extracting intra-coded video frames from a video data stream including inter-coded video frames and intra-coded video frames to produce reduced resolution intra-coded video frames suitable for recording in trick play tape segments of a tape for later play back and display during video tape recorder trick play operation. A plurality of methods and apparatus for buffering and selecting received intra-coded video frames for recording in trick play tape segments to support a plurality of trick play modes of operation are disclosed. In addition, a plurality of different data reduction methods and apparatus are disclosed for generating reduced resolution intra-coded frames from the received full resolution intra-coded video frames.

Title
Method and apparatus for achieving video data reduction through the use of re-encoding
Application Number
4158
Publication Number
6023553
Application Date
August 6, 1997
Publication Date
February 8, 2000
Inventor
Frank Anton Lane
Medford Lakes
NJ, US
Jill MacDonald Boyce
Manalapan
NJ, US
Agent
Straub & Pokotylo
Agent
Michael P Straub
Assignee
Hitachi America
IPC
H04N 7/26
H04N 5/917
View Original Source