Data recording apparatus and method, data reproducing apparatus and method, data recording/reproducing apparatus and method, and transmission medium

Abstract

Video data and audio data inputted respectively from a camera system and a microphone are compressed and encoded in a video compressor/expander-encoder/decoder and an audio compressor/expander-encoder/decoder respectively, and then are multiplexed in a multiplexer. Subsequently the multiplexed data are supplied to a hard disk drive via an AV interface, a host bus, an interface adaptor and an interface. Information representing the kind of the data is written in a register. The data supplied to the hard disk drive are recorded in a disk, on the basis of such information, by a method conforming with the data. And in a reproduction mode, the data are reproduced, on the basis of such information, by a method conforming with the data. Thus, the data can be recorded or reproduced efficiently by the relevant method conforming with the kind of the data.

1. A data recording apparatus comprising:
 an identifying means for identifying first data and second data of mutually different kinds; and  
 a recording means for recording the first data by a first method in said recording medium, while recording the second data by a second method in said recording medium,  
 whereby in said first method the recording of the first data is limited to a replacement sector and whereby in said second method the recording of the second data is not limited to a replacement sector.  
 
     
     
       2. The data recording apparatus according to  claim 1 , wherein the first data are those closely correlated, and the second data are those not correlated. 
     
     
       3. The data recording apparatus according to  claim 2 , wherein the first data are temporally continuous. 
     
     
       4. The data recording apparatus according to  claim 1 , wherein the first data are composed of audio and/or video data streams, and the second data are random access data other than audio and/or video data streams. 
     
     
       5. The data recording apparatus according to  claim 1 , wherein said recording means records, in said recording medium, the first data and the second data as a file. 
     
     
       6. The data recording apparatus according to  claim 5 , further comprising a storage means for storing specific extender information which represents a file kind assigned to said file, wherein said identifying means identifies the first data and the second data on the basis of such extender information. 
     
     
       7. A data recording apparatus comprising:
 an identifying means for identifying first data and second data of mutually different kinds;  
 a recording means for recording the first data by a first method in said recording medium, while recording the second data by a second method in said recording medium, wherein said recording means records in said recording medium the first data and the second data as a file; and  
 a storage means for storing specific extender information which represents a file kind assigned to said file,  
 wherein said identifying means identifies the first data and the second data on the basis of such extender information, and  
 wherein, when recording the first data in said recording medium, said recording means limits, by said first method, seek to a replacement sector formed at the time of formatting said recording medium.  
 
     
     
       8. A data recording method comprising the steps of:
 identifying first data and second data of mutually different kinds; and  
 recording the first data by a first method in said recording medium, while recording the second data by a second method in said recording medium,  
 whereby in said first method the recording of the first data is limited to a replacement sector and whereby in said second method the recording of the second data is not limited to a replacement sector.  
 
     
     
       9. A data reproducing apparatus comprising:
 an identifying means for identifying first data and second data of mutually different kinds; and  
 a reproducing means for reproducing the first data by a first method from said recording medium, while reproducing the second data by a second method from said recording medium,  
 whereby in said first method the first data is reproduced while limiting a number of retries and whereby in said second method the second data is reproduced while not limiting the number of retries.  
 
     
     
       10. The data reproducing apparatus of  claim 9 , wherein the first data are those closely correlated, and the second data are those not correlated. 
     
     
       11. The data reproducing apparatus according to  claim 10 , wherein the first data are temporally continuous. 
     
     
       12. The data reproducing apparatus according to  claim 9 , wherein the first data are composed of audio and/or video data streams, and the second data are random access data other than audio and/or video data streams. 
     
     
       13. The data reproducing apparatus according to  claim 9 , wherein said reproducing means reproduces, as a file, the first data and the second data recorded in said recording medium. 
     
     
       14. The data reproducing apparatus according to  claim 13 , further comprising a storage means for storing specific extender information which represents a file kind assigned to said file, wherein said identifying means identifies the first data and the second data on the basis of such extender information. 
     
     
       15. The data reproducing apparatus according to  claim 14 , wherein, when reproducing the first data from said recording medium, said reproducing means limits, by said first method, an operation to inhibit a process of continuously reading out the first data. 
     
     
       16. The data reproducing apparatus according to  claim 9 , further comprising:
 an error information storage means for storing error information generated when said reproducing means reproduces the first data from said recording medium; and  
 an interpolation means for interpolating the first data reproduced by said reproducing means, on the basis of the error information stored in said error information storage means.  
 
     
     
       17. A data reproducing method comprising the steps of:
 identifying first data and second data of mutually different kinds; and  
 reproducing the first data by a first method from said recording medium, while reproducing the second data by a second method from said recording medium,  
 whereby in said first method the first data is reproduced while limiting a number of retries and whereby in said second method the second data is reproduced while not limiting the number of retries.  
 
     
     
       18. A data recording/reproducing apparatus comprising:
 an identifying means for identifying first data and second data of mutually different kinds;  
 a recording means for recording the first data by a first method in said recording medium, while recording the second data by a second method in said recording medium,  
 whereby in said first method the recording of the first data is limited to a replacement sector and whereby in said second method the recording of the second data is not limited to a replacement sector; and  
 a reproducing means for reproducing the first data by a first method from said recording medium, while reproducing the second data by a second method from said recording medium,  
 whereby in said first method the first data is reproduced while limiting a number of retries and whereby in said second method the second data is reproduced while not limiting the number of retries.  
 
     
     
       19. The data recording/reproducing apparatus according to  claim 18 , Wherein the first data are those closely correlated, and the second data are those not correlated. 
     
     
       20. The data recording/reproducing apparatus according to  claim 19 , wherein the first data are temporally continuous. 
     
     
       21. The data recording/reproducing apparatus according to  claim 18 , wherein the first data are composed of audio and/or video data streams, and the second data are random access data other than audio and/or video data streams. 
     
     
       22. The data recording/reproducing apparatus according to  claim 18 , wherein said recording means records, in said recording medium, the first data and the second data as a file; and said reproducing means reproduces, as a file, the first data and the second data recorded in said recording medium. 
     
     
       23. The recording/reproducing apparatus according to  claim 22 , further comprising a storage means for storing specific extender information which represents a file kind assigned to said file, wherein said identifying means identifies the first data and the second data on the basis of such extender information. 
     
     
       24. A recording/reproducing apparatus comprising:
 an identifying means for identifying first data and second data of mutually different kinds;  
 a recording means for recording the first data by a first method in said recording medium, while recording the second data by a second method in said recording medium, wherein said recording means records in said recording medium the first data and the second data as a file;  
 a reproducing means for reproducing the first data by a first method from said recording medium, while reproducing the second data by a second method from said recording medium, wherein said reproducing means reproduces as a file the first data and the second data recorded in said recording medium; and  
 a storage means for storing specific extender information which represents a file kind assigned to said file,  
 wherein said identifying means identifies the first data and the second data on the basis of such extender information, and  
 wherein, when recording the first data in said recording medium, said recording means limits, by said first method, seek to a replacement sector formed at the time of formatting said recording medium; and when reproducing the first data from said recording medium, said reproducing means limits, by said first method, an operation to inhibit a process of continuously reading out the first data.  
 
     
     
       25. The data recording/reproducing apparatus according to  claim 18 , further comprising:
 an error information storage means for storing error information generated when said reproducing means reproduces the first data from said recording medium; and  
 an interpolation means for interpolating the first data reproduced by said reproducing means, on the basis of the error information stored in said error information storage means.  
 
     
     
       26. A data recording/reproducing method comprising the steps of:
 identifying first data and second data of mutually different kinds;  
 recording the first data by a first method in said recording medium, while recording the second data by a second method in said recording medium,  
 whereby in said first method the recording of the first data is limited to a replacement sector and whereby in said second method the recording of the second data is not limited to a replacement sector; and  
 reproducing the first data by a first method from said recording medium, while reproducing the second data by a second method from said recording medium,  
 whereby in said first method the first data is reproduced while limiting a number of retries and whereby in said second method the second data is reproduced while not limiting the number of retries.  
 
     
     
       27. A transmission medium for transmitting a computer program used in a data recording/reproducing apparatus which records or reproduces first data and second data of mutually different kinds in or from a recording medium, said computer program having functions of:
 identifying the first data and the second data;  
 recording the first data by a first method in said recording medium, while recording the second data by a second method in said recording medium,  
 whereby in said first method the recording of the first data is limited to a replacement sector and whereby in said second method the recording of the second data is not limited to a replacement sector; and  
 reproducing the first data by a first method from said recording medium, while reproducing the second data by a second method from said recording medium,  
 whereby in said first method the first data is reproduced while limiting a number of retries and whereby in said second method the second data is reproduced while not limiting the number of retries.  
 
     
     
       28. A data recording apparatus comprising:
   an identifying means for identifying first data and second data of mutually different kinds; and        a recording means for recording the first data by a first method in said recording medium while recording the second data by a second method in said recording medium;        whereby in said first method the recording of the first data is limited from being written to a replacement sector and is enabled to be written continuously to said recording medium and whereby in said second method the recording of the second data is not limited and is enabled to be written to a replacement sector and also continuously to said recording medium.      
     
     
       29. The data recording apparatus according to  claim 28 , wherein the first data are those closely correlated, and the second data are those not correlated.  
     
     
       30. The data recording apparatus according to  claim 29 , wherein the first data are temporally continuous.  
     
     
       31. The data recording apparatus according to  claim 28 , wherein the first data are composed of audio and/or video data streams and the second data are random access data other than audio and/or video data streams.  
     
     
       32. The data recording apparatus according to  claim 28 , wherein said recording means records, in said recording medium, the first data and the second data as a file.  
     
     
       33. The data recording apparatus according to  claim 32 , further comprising a storage means for storing specific extender information which represents a file kind assigned to said file, wherein said identifying means identifies the first data and the second data on the basis of such extender information.  
     
     
       34. A data recording apparatus comprising:
   an identifying means for identifying first data and second data of mutually different kinds;        a recording means for recording the first data by a first method in said recording medium, while recording the second data by a second method in said recording medium, wherein said recording means records in said recording medium the first data and the second data as a file; and        a storage means for storing specific extender information which represents a file kind assigned to said file,        wherein said identifying means identifies the first data and the second data on the basis of such extender information, and        wherein, when recording the first data in said recording medium, said recording means limits, by said first method, seek so that recording cannot be made to a replacement sector formed at the time of formatting said recording medium.      
     
     
       35. A data recording method comprising the steps of:
   identifying first data and second data of mutually different kinds; and        recording the first data by a first method in said recording medium, while recording the second data by a second method in said recording medium,        whereby in said first method the recording of the first data is limited from being written to a replacement sector and is enabled to be written continuously to said recording medium and whereby in said second method the recording of the second data is not limited and is enabled to be written to a replacement sector and also continuously to said recording medium.      
     
     
       36. A data recording/reproducing apparatus comprising:
   an identifying means for identifying first data and second data of mutually different kinds;        a recording means for recording the first data by a first method in said recording medium, while recording the second data by a second method in said recording medium,        whereby in said first method the recording of the first data is limited from being written to a replacement sector and is enabled to be written continuously to said recording medium and whereby in said second method the recording of the second data is not limited and is enabled to be written to a replacement sector and also continuously to said recording medium; and        a reproducing means for reproducing the first data by a first method from said recording medium, while reproducing the second data by a second method from said recording medium,        whereby in said first method the first data is reproduced so as to insure continuous reproduction of the first data and whereby in said second method the second data is reproduced so as to insure the reliability of the second data.      
     
     
       37. The data recording/reproducing apparatus according to  claim 36 , wherein the first data are those closely correlated, and the second data are those not correlated.  
     
     
       38. The data recording reproducing apparatus according to  claim 37 , wherein the first data are temporally continuous.  
     
     
       39. The data recording/reproducing apparatus according to  claim 36 , wherein the first data are composed of audio and/or video data streams, and the second data are random access data other than audio and/or video data streams.  
     
     
       40. The data recording/reproducing apparatus according to  claim 36 , wherein said recording means records, in said recording medium, the first data and the second data as a file; and said reproducing means reproduces, as a file, the first data and the second data recorded in said recording medium.  
     
     
       41. The recording/reproducing apparatus according, to  claim 40 , further comprising storage means for storing specific extender information which represents a file kind assigned to said file, wherein said identifying means identifies the first data and the second data on the basis of such extender information.  
     
     
       42. The data recording/reproducing apparatus according to  claim 36 , further comprising:
   an error information storage means for storing error information generated when said reproducing means reproduces the first data from said recording medium; and        an interpolation means for interpolating the first data reproduced by said reproducing means, on the basis of the error information stored in said error information storage means.      
     
     
       43. A recording/reproducing apparatus comprising:
   an identifying means for identifying first data and second data of mutually different kinds;        a recording means for recording the first data by a first method in said recording medium, while recording the second data by a second method in said recording medium, wherein said recording means records in said recording medium the first data and the second data as a file;        a reproducing means for reproducing the first data by a first method from said recording medium, while reproducing the second data by a second method from said recording medium, wherein said reproducing means reproduces as a file the first data and the second data recorded in said recording medium; and        a storage means for storing specific extender information which represents a file kind assigned to said file,        wherein said identifying means identifies the first data and the second data on the basis of such extender information, and        wherein, when recording the first data in said recording medium, said recording means limits, by said first method, seek so that recording cannot be made to a replacement sector formed at the time of formatting said recording medium; and when reproducing the first data from said recording medium, said reproducing means limits, by said first method, the reproduction process to an operation to inhibit a process of continuously reading out the first data so as to insure the reliability of the first data.      
     
     
       44. A data recording/reproducing method comprising the steps of:
   identifying first data and second data of mutually different kinds;        recording the first data by a first method in said recording medium while recording the second data by a second method in said recording medium,        whereby in said first method the recording of the first data is limited from being written to a replacement sector and is enabled to be written continuously to said recording medium and whereby in said second method the recording of the second data is not limited and is enabled to be written to a replacement sector and also continuously to said recording medium; and        reproducing the first data by a first method from said recording medium while reproducing the second data by a second method from said recording medium,        whereby in said first method the first data is reproduced so as to insure continuous reproduction of the first data and whereby in said second method the second data is reproduced so as to insure the reliability of the second data.      
     
     
       45. A transmission method for transmitting a computer program used in a data recording/reproducing apparatus which records or reproduces first data and second data of mutually different kinds in or from a recording medium said computer program having functions of:
   identifying the first data and the second data;        recording the first data by a first method in said recording medium while recording the second data by a second method in said recording medium,        whereby in said first method the recording of the first data is limited from being written to a replacement sector and is enabled to be written continuously to said recording medium and whereby in said second method the recording of the second data is not limited and is enabled to be written to a replacement sector and also continuously to said recording medium; and        reproducing the first data by a first method from said recording medium, while reproducing the second data by a second method from said recording medium, whereby in said first method the first data is reproduced so as to insure continuous reproduction of the first data and whereby in said second method the second data is reproduced so as to insure the reliability of the second data.