Recording medium, recording and/or reproducing apparatus and recording and/or reproducing method

Claim 2

The recording medium according to claim 1, wherein said first management data area is stored with identification data indicating an use status of said second management data area.

Claim 3

The recording medium according to claims 1 or 2, wherein said first management data area and said second management data area are recorded at an upstream side of a recording start end of said recording area.

Claim 4

A disc-shaped recording medium comprising: a recording area in which only compressed audio data or both of compressed audio data and compressed video data in an intermixed state are discretely or continuously recorded; a first management data area stored with first management data for controlling a recording or reproducing operation of the audio data for said recording area so that the audio data output and expanded when only the audio data are recorded in or reproduced from said recording area are continuously output; and a second management data area stored with second management data for controlling a recording or reproducing operation of the audio data for said recording area so that both of the audio data and the video data which are output and expanded when both of the audio data and the video data are recorded in or reproduced from said recording area are continuously output.

Claim 5

The recording medium according to claim 4, wherein said first management data area is stored with identification data representing an use status of said second management data area.

Claim 6

The recording medium according to claims 4 or 5, wherein said first management data area and said second management data area are recorded at a position corresponding to an inner peripheral side of said recording area.

Claim 7

A recording and/or reproducing apparatus of a recording medium (1), said recording medium (1) having a recording area in which only audio data or both of audio data and video data are recorded while intermixed with each other, a first management data area stored with first management data for controlling a recording or reproducing operation of the audio data for said recording area when only the audio data are recorded in or reproduced from said recording area, and a second management data area stored with second management data for controlling a recording or reproducing operation of the audio data for said recording area when both of the audio data and the video data are recorded in or reproduced from said recording area, said apparatus comprising: a first compandor (14) for compressing input audio data and expanding audio data read out from a recording medium; a second compandor for compressing input video data and expanding video data read out from the recording medium; storing means (13, 23) for temporarily storing the audio data and the video data output from said first (14) and second compandors (21) and temporarily storing the audio data and the video data read out from the recording medium (1); data transforming means (8) for transforming each of the audio data and video data read out from said storing means to recording data; head means (3, 6) for recording the recording data supplied from said transforming means on the recording medium and reading out data recorded on the recording medium; and control means (9, 11) for controlling the recording or reproducing operation of said head means on or from the recording medium on the basis of the first and second management data read out by said head means.

Claim 8

The recording and/or reproducing apparatus as claimed in claim 7, wherein when it is judged on the basis of the first management data read out by said head means that the video data are recorded on the recording medium, said control means (9, 11) controls said head means on the basis of the second management data so as to continuously read out a portion of said recording area in which the video data are recorded, and a portion in which the audio data are recorded.

Claim 9

The recording and/or reproducing apparatus according to claims 7 or 8, wherein when it is judged on the basis of the first management data read out by the head means (3, 6) that only the audio data are recorded on the recording medium, said control means controls said head means on the basis of the first management data to read out only a portion of the recording area in which the audio data are recorded.

Claim 10

The recording and/or reproducing apparatus according to any of claims 7 to 9, wherein said control means (3, 6) includes a write-in/read-out controller for controlling a write-in operation of audio data and video data into said storing means and a read-out operation of audio data and video data from said storing means.

Claim 11

The recording and/or reproducing apparatus according to any of claims 7 to 10, wherein said control means (3, 6) includes an identification unit for identifying whether the data read out from said storing means are audio data or video data.

Claim 12

The recording and/or reproducing apparatus according to any of claims 7 to 11, wherein said control means (3, 6) controls the read-out operation of the recording medium of the recording medium by said head means on the basis of reproduction-inhibition data in the second management data.

Claim 13

The recording and/or reproducing apparatus according to any of claims 7 to 12, wherein said head means is supplied with the recording data corresponding to the audio data output from said data transforming means (8) and the recording data corresponding to the video data while both of the recording data are subjected to time division.

Claim 14

A recording and/or reproducing apparatus of a recording medium (1), said recording medium (1) having a recording area in which only audio data or both of audio data and video data are recorded while intermixed with each other, a first management data area stored with first management data for controlling a recording or reproducing operation of the audio data for said recording area when only the audio data are recorded in or reproduced from said recording area, and a second management data area stored with second management data for controlling a recording or reproducing operation of the audio data for said recording area when both of the audio data and the video data are recorded in or reproduced from said recording area, the second management data including reproduction-inhibition data, said apparatus comprising: a first compandor (14) for compressing input audio data and expanding audio data read out from a recording medium; a second compandor for compressing input video data and expanding video data read out from the recording medium; storing means (13) for temporarily storing the audio data and the video data output from said first and second compandors and temporarily storing the audio data and the video data read out from the recording medium; data transforming means (8) for transforming each of the video data and video data read out from said storing means to recording data; head means (3, 6) for recording the recording data supplied from said transforming means on the recording medium and reading out data recorded on the recording medium; and control means (9, 11) which is supplied with the first and second management data read out by said head means, and controls the recording or reproducing operation for the recording medium by said head means on the basis of the first and second management data, wherein said control means controls said head means to reproduce, on the basis of the first management data, only a portion of the recording area of the recording medium in which the audio data are recorded , and to partially read out the recording area of the recording medium on the basis of the second management data and the reproduction-inhibition data of the second management data.

Claim 15

The recording and/or reproducing apparatus according to claim 14, further including input means (16, 17; 27 28), and wherein said control means (9, 11) compares data input from said input means with the reproduction-inhibition data, and if a comparison result indicates coincidence between the data input from said input means and the reproduction-inhibition data, said control means controls said head means to read out the whole recording area of the recording medium.

Claim 16

The recording and/or reproducing apparatus according to claims 14 or 15, further including display means (20) which is controlled by said control means and displays a demand for data input through said input means.

Claim 17

A reproducing apparatus of a disc-shaped recording medium (1), said disc-shaped recording medium having a recording area in which only audio data or both of audio data and video data are recorded while intermixed with each other, a first management data area stored with first management data for controlling a recording or reproducing operation of the audio data for said recording area when only the audio data are recorded in or reproduced from said recording area, and a second management data area stored with second management data for controlling a recording or reproducing operation of the audio data for said recording area when both of the audio data and the video data are recorded in or reproduced from said recording area, said apparatus comprising: a head (3) for reading data which are recorded on a disc-shaped recording medium with being compressed; a decoder (8) for decoding data read out by said head; a memory (13) for temporarily storing audio data and video data which are output from said decoder; a first expander (14) for expanding audio data output from said memory; a second expander for expanding video data output from said memory; and a controller (11) for controlling a reproducing operation of said recording medium by said head on the basis of the first and second management data read out by said head.

Claim 18

The reproducing apparatus according to claim 18, wherein when it is judged on the basis of the first management data read out by said head that the video data are recorded on the disc-shaped recording medium, said controller (11) controls said head (3) on the basis of the second management data to continuously read out a portion of the recording area in which the video data are recorded, and a portion in which the audio data are recorded.

Claim 19

The reproducing apparatus according to claims 17 or 18, wherein when it is judged on the basis of the first management data read out by said head that only the audio data are recorded on the disc-shaped recording medium, said controller controls said head on the basis of the first management data to read out only a portion of the recording area in which the audio data are recorded.

Claim 20

The reproducing apparatus according to any of claims 17 to 19, wherein said controller (11) includes a memory control unit (12) for controlling a write-in operation of audio data and video data into said memory, and a read-out operation of audio data and video data from said memory.

Claim 21

The reproducing apparatus according to any of claims 17 to 20, wherein said controller (11) includes an identification unit for identifying whether the data read out from said memory are audio data or video data.

Claim 22

The reproducing apparatus according to any of claims 17 to 21, wherein said controller (11) controls the operation of said head (3) to partially read out the recording area of the disc-shaped recording medium on the basis of reproduction-inhibition data of the second management data.

Claim 23

A reproducing method of a disc-shaped recording medium (1) , said disc-shaped recording medium having a recording area in which only audio data or both of audio data and video data are recorded while intermixed with each other, a first management data area stored with first management data for controlling a recording or reproducing operation of the audio data for said recording area when only the audio data are recorded in or reproduced from said recording area, and a second management data area stored with second management data for controlling a recording or reproducing operation of the audio data for said recording area when both of the audio data and the video data are recorded in or reproduced from said recording area, said reproducing method comprising the steps of: reading out the first management data from the disc-shaped recording medium by head means (3); judging on the basis of the read out first management data whether the second management data exists; and controlling the head means to continuously reading out on the basis of the second management data a portion of the recording area in which video data are recorded and a portion in which audio data are recorded if existence of the second management data is judged.

Claim 24

The reproducing method according to 23, wherein if the existence of the second management data is not judged on the basis of the first management data read out by the head means, the head is controlled so that only the portion of the recording area in which the audio data are recorded is read out on the basis of the first management data.

Claim 25

The reproducing method according to claims 23 or 24, wherein if it is judged that reproduction-inhibition data are recorded in the second management data, the head is controlled to partially read out data from the recording area of the disc-shaped recording medium on the basis of the second management data and the reproduction-inhibition data of the second management data.

Claim 26

The reproducing method according to any of claims 23 to 25, further comprising the steps of comparing data input from input means with reproduction-inhibition data of the second management data; and controlling the head means to read out the whole recording area of the recording medium if a comparison result indicates coincidence between the data input from the input means and the reproduction-inhibition data.

Claim 27

A recording method of a disc-shaped recording medium, said disc-shaped recording medium having a recording area in which only audio data or both of audio data and video data are recorded while intermixed with each other, a first management data area stored with first management data for controlling a recording or reproducing operation of the audio data for said recording area when only the audio data are recorded in or reproduced from said recording area, and a second management data area stored with second management data for controlling a recording or reproducing operation of the audio data for said recording area when both of the audio data and the video data are recorded in or reproduced from said recording area, said recording method comprising the steps of: writing data which serve to inhibit the reproduction of a specific portion in the recording area of the disc-shaped recording medium and are input from input means, into the second management data which are read out through head means from the disc-shaped recording medium and then stored in storing means together with the first management data; and recording the first and second management data read out from the storing means into the first and second management data areas respectively by head means.

Claim 28

The recording method as claimed in claim 27, further comprising the step of performing a rewrite operation to defect management data for managing a defect portion of the recording area of the disc-shaped recording medium of the second management data stored in the storing means on the basis of data for inhibiting the reproduction of a specific portion of the recording area of the disc-shaped recording medium which is input from said input means.