Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
2007-04-24
2007-04-24
Chevalier, Robert (Department: 2621)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C386S349000
Reexamination Certificate
active
09978251
ABSTRACT:
When a program of a certain duration is converted into compressed data (encoded), it is desirable for the total number of data to fit in an available data space, for example, when recorded on an information carrier. More particularly in variable bit rate compression such as a video signal via MPEG-2, this is hard to forecast. For this purpose, a recording device according to the invention comprises a compression unit (22) whose bit rate is influenced by a system controller (45) via a control input (26) during the encoding process in dependence on the remaining part of the vacant data space on the information carrier (1) and the remaining duration of the program. When parameters influencing the bit rate are set in the compression unit (22), the system controller will take the complexity of the program derived during a previously encoded part of the program into account.
REFERENCES:
patent: 5680483 (1997-10-01), Tranchard
patent: 000584991 (1994-02-01), None
patent: 0584991 (1994-03-01), None
patent: 02231881 (1990-09-01), None
“Video Disc System Using Variable Bit Rate”, Takehiko Saito et al., IEEE Transactions on Consumer Electronics, vol. 41, No. 3, Aug. 1995.
Belk Michael E.
Chevalier Robert
Koninklijke Philips Electroncis N.V.
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