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US 6,724,436 B1Granted
Video signal processing
AssigneeSony United Kingdom Limited
InventorsNicholas Ian Saunders, Robert Webb
Life of this patent
Estimating the term…
Abstract
A method of mounting a volume from a tape medium on a tape drive apparatus. The method reads a bar-code indicating the volume from a tape cartridge, attaches the tape cartridge to a tape drive, and detects the current track position on the basis of a longitudinal track. The method then determines whether a beginning volume label or a last used area volume label is nearer to the current track position, reads the nearer volume label from the tape medium, confirms the volume by comparing the nearer volume label with the bar-code, and mounts the volume onto the tape drive.
Claims49
A video signal processor comprising:
- a first input for receiving a compressed first video signal representing first video information including transcoding parameters associated with the pictures of the signal and relating to the compression of said first video signal,
- a decoder for decoding the compressed first video signal whilst preserving the parameters in association with the pictures,
- a second input for receiving a second video signal representing second video information to be combined with the said first video information,
- a combiner for combining the second video information with the fist video information to produce a picture of the combined information, comprising at least one part derived only from the first signal and at least one other part derived at least partly from the second signal, whereby the combined information picture is a mix of pixels from the first and second signals, and
- an encoder for compression encoding the said picture to produce a combined signal representing the combined information, which encoder reuses at least one of the said preserved parameters for encoding at least the said at least one part of the combined information which is derived only from the first signal.
2 more elements
A method of processing a video signal comprising the steps of:
- receiving a compressed first video signal representing first video information including tanscoding parameters associated with the frames of the signal and relating to the compression,
- decoding the compressed first video signal whilst preserving the parameters in association with the frames,
- receiving a second video signal representing second video information to be combined with the said first video information,
- combining the second video information with the first video information to produce a picture of the combined information, comprising at least one part derived only from the first signal and at least one other part derived at least partly from the second signal, whereby the combined information picture is a mix of pixels from frames of the first and second signals, and
- encoding the said picture to produce a combined signal representing the combined information, which encoding step reuses at least one of the said preserved parameters for encoding at least the said at least one part of the combined information which is derived only from the first signal.
2 more elements
A video signal processor comprising:
- a first input arrangement for receiving a compressed first video signal representing first video information and preserved transcoding parameters associated with the pictures of the signal and relating to the compression of said first video signal,
- a second input for receiving a second video signal representing second video information to be combined with the said first video information,
- a combiner for coining the second video information with the first video information to produce a picture of the combined information, comprising at least one part derived only from the first signal and at least one other part derived at least partly from the second signal, whereby the combined information picture is a mix of pixels from the first and second signals, and
- an encoder for compression encoding the said picture to produce a combined signal representing the combined information, which encoder reuses at least one of the said preserved parameters for encoding at least the said at least one part of the combined information which is derived only from the first signal.
1 more element
Dependencies are inferred from the claim text.