Recording and reproducing an MPEG information signal on/from a record carrier
AssigneeKoninklijke Philips Electronics N.V.
InventorsWilhelmus J. Van Gestel, Ronald W. J. J. Saeijs, Imran A. Shah
Life of this patent
Estimating the term…
Abstract
During recording of an MPEG information signal on a record carrier, transport packets (Pk) are stored in signal blocks in a track on the record carrier. x transport packets of the MPEG information signal are stored in the second block sections (SB) of y signal blocks, where x and y are integers, x≧1 and y>1, more specifically, y>x. Further, third block sections (TB) are present in one or more of the second block sections in the y signal blocks of a group for storing additional information, this additional information relating to the specific application of recording and reproducing the MPEG information signal on/from the record carrier.
Claims21
A recording arrangement for recording an information signal in tracks on a record carrier, the recording arrangement comprising:
- an input terminal for receiving the information signal;
- channel encoding means for channel encoding the information signal into a channel signal, the channel signal including subsequent signal blocks having a predetermined fixed length, each signal block comprising a first block section having a synchronization signal, and a second block section having a number of channel bytes;
- and
- writing means for writing the channel signal in the tracks on the record carrier,
- wherein the information signal is in the form of an MPEG information signal in accordance with an MPEG format, the MPEG information signal comprising subsequent transport packages having a predetermined fixed length,
- and wherein:
- the channel encoding means stores information included in x transport packets of the information signal in the second block sections of a group of y signal blocks comprising a third block section;
- and
- the channel encoding means further generates identification information and stores said identification information in said third block section of the first signal block of a group of y signal blocks, thereby identifying said signal block as being the first signal block of the group, wherein x and y are integer constants in which x≧1 and y>1.
A record carrier having an information signal recorded on it in tracks on said record carrier, the signal recorded in the tracks being in the form of a channel encoded information signal, the channel encoded information signal comprising subsequent signal blocks having a predetermined fixed length, each signal block comprising a first block section having a synchronization signal, and a second block section having a number of channel bytes, wherein the information signal is an MPEG information signal in accordance with an MPEG format, the MPEG information signal comprising subsequent transport packets having a predetermined fixed length, information included in x transport packets of the MPEG information signal being included in the second block sections of a group of y signal blocks of the channel encoded information signal, the second block section of at least the first signal block of the group of y signal blocks comprising a third block section, identification information being stored in the third block section of the first signal block of a group of y signal blocks, thereby identifying said signal block as being the first signal block of the group, and wherein x and y are integer constants in which x≧1 and y>1.
A reproducing arrangement for reproducing an information signal that has been recorded in the form of a channel signal in tracks on a record carrier, the reproducing arrangement comprising:
- reading means for reading the channel signal from a track on the record carrier, the channel signal comprising subsequent signal blocks having a predetermined fixed length, each signal block comprising a first block section having a synchronization signal and a second block section having a number of channel bytes;
- channel decoding means for channel decoding the channel signal into the information signal;
- and
- an output terminal for applying the information signal, wherein the reproducing arrangement is adapted to reproduce an MPEG information signal in accordance with an MPEG format from the record carrier, the MPEG information signal comprising subsequent transport packets having a predetermined fixed length, information contained in x transport packets of the MPEG information signal being stored in the second block sections of a group of y signal blocks of the channel signal, where x and y are integer constants in which x≧1 and y>1,
- wherein the second block section of the first signal block of the group of y signal blocks comprises a third block section for storing identification information identifying the signal block as being the first signal block of a group of y signal blocks, and wherein the reproducing arrangement further comprises:
- first retrieving means for retrieving the information contained in the x transport packets of the MPEG information signal from the group of y signal blocks;
- and
- second retrieving means for retrieving said indication information from the third block sections of the first signal blocks in the group of y signal blocks.
A method for recording an information signal in tracks on a recording carrier, said method comprising the steps:
- receiving the information signal;
- channel encoding the information signal into a channel signal, the channel signal comprising subsequent signal blocks having a predetermined fixed length, each signal block comprising a first block section having a synchronization signal and a second block section having a number of channel bytes;
- and
- writing the channel signal in the tracks on the record carrier,
- wherein the information signal is in the form of an MPEG information signal in accordance with an MPEG format on the record carrier, the MPEG information signal comprising subsequent transport packets having a predetermined fixed length,
- and wherein the channel encoding step comprises the sub-steps:
- storing information included in x transport packets of the MPEG information signal in the second block sections of a group of y signal blocks of the channel signal, wherein the second block section of the first signal block of the group of y signal blocks comprises a third block section;
- and
- storing identification information in said third block section thereby identifying said signal block as being the first signal block of the group of y signal blocks, where x and y are integer constants in which x≧1 and y>1.
Dependencies are inferred from the claim text.