Method and apparatus for recording digital data streams and management information

Abstract

An optical disc and a method and apparatus for recording digital data streams and management information on the disc, are provided. The method includes receiving a digital data stream including a plurality of packets; and recording the digital data stream while grouping the data packets into a packet group, one or more packet groups into a first data unit, and one or more first data units into a second data unit, wherein each packet group with a fixed size includes a header followed by a plurality of data packets, each data packet comprising time stamp information and packet, wherein the header includes first control information indicating a number of valid data within the packet group and second control information indicating whether a stuffing data exists.

1 . A method of recording data, comprising: 
 receiving a digital data stream including a plurality of packets; and    recording the digital data stream while grouping the data packets into a packet group, one or more packet groups into a first data unit, and one or more first data units into a second data unit,    wherein each packet group with a fixed size includes a header followed by a plurality of data packets, each data packet comprising time stamp information and packet,    wherein the header includes first control information indicating a number of valid data within the packet group and second control information indicating whether a stuffing data exists.    
   
   
       2 . The method of  claim 1 , wherein the first data unit is a stream object unit (SOBU) and the second data unit is a stream object (SOB).  
   
   
       3 . The method of  claim 1 , wherein the time stamp information indicates an arrival time of a corresponding packet.  
   
   
       4 . The method of  claim 3 , wherein the recording step includes a step of inserting the arrival time of corresponding packet, and records each data packet including the arrival time stamp followed by the received packet, respectively.  
   
   
       5 . The method of  claim 4 , wherein each packet group comprises a fixed number of data packets.  
   
   
       6 . The method of  claim 1 , wherein the number of valid data indicates a number of valid packet recorded actually in the packet group.  
   
   
       7 . The method of  claim 6 , wherein in the recording step, the digital data stream is recorded on an optical disc.  
   
   
       8 . A method of recording data, comprising: 
 grouping a digital data stream including a plurality of packets into at least one predetermined-sized data unit, each data unit carrying header information and one or more data packets, the header information including first control information indicating a number of valid data within the data unit and second control information indicating whether a stuffing data exists; and    recording the digital data stream according to each data unit.    
   
   
       9 . The method of  claim 8 , wherein each data packet comprises time stamp information and packet.  
   
   
       10 . The method of  claim 9 , wherein the grouping step includes steps of inserting the time stamp information followed by the packet, and inserting the header information followed by data packets.  
   
   
       11 . The method of  claim 10 , wherein the grouping step further includes a step of inserting the stuffing data if a generation of stuffing data is required, 
 wherein the second control information indicates that the stuffing data exists.    
   
   
       12 . A method of recording data, comprising: 
 creating one or more packet groups from a received digital stream including a plurality of packets, the packet group comprising header information and one or more data packets, and the data packet comprising a time stamp information and packet, wherein the header information includes first control information indicating a number of valid data within the packet group and second control information indicating whether a stuffing data exists;    grouping one or more packet groups into a stream object unit (SOBU), and one or more stream object units into a stream object (SOB); and    recording one or more packet groups according to the grouping step on a storage medium.    
   
   
       13 . The method of  claim 12 , wherein the creating step includes a step of inserting the header information.  
   
   
       14 . The method of  claim 12 , wherein the creating step includes a step of inserting the stuffing data if a generation of stuffing data is required, 
 wherein the second control information indicates that the stuffing data exists.    
   
   
       15 . A storage medium having a recording layer and data structure recorded on the recording layer, wherein the data structure includes at least one predetermined-sized data unit, each data unit carrying header information and one or more data packets, the header information including first control information indicating a number of valid data within the data unit and second control information indicating whether a stuffing data exists.  
   
   
       16 . The storage medium of  claim 15 , wherein each data packet comprises time stamp information and packet.  
   
   
       17 . The storage medium of  claim 16 , wherein the time stamp information is followed by the packet, and the header information is followed by data packets.  
   
   
       18 . The storage medium of  claim 17 , wherein the stuffing data is appended by a generation of stuffing data, wherein the second control information indicates that the stuffing data exists.  
   
   
       19 . The storage medium of  claim 16 , wherein the storage medium is an optical disc.  
   
   
       20 . The storage medium of  claim 16 , wherein the number of valid data indicates a number of valid packet recorded actually in the packet group.