JP2001014790A - Optical disk recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical disk recording/reproducing device facilitating the access to a desired program at the time of data reproduction with respect to the data recorded for reservation while preliminarily taking the change of program broadcasting time into consideration. SOLUTION: This optical disk recording/reproducing device AA is constituted in such a manner that when the data of the program, the broadcasting of which is scheduled during the time from the 1st start time to the 1st finish time, are recorded for reservation on the optical disk 1, the whole data of the program are recordable even though the program is broadcasted in such a way that the actual start time of broadcasting is delayed from the 1st start time, and also the program searching is allowed, then it is provided with a reservation setting means 10, a recording process circuit 4, an index imparting circuit 6, a reproduction process circuit 5 and an index detecting circuit 7. Immediate access to a specified data among received data being recorded is successively executed by specifying the index information A-G to be detected, then immediate access to a specified program data is executed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk recording / reproducing apparatus having a function of recording a broadcast program by reservation.

[0002]

2. Description of the Related Art In a conventional recording / reproducing apparatus (such as a VTR) having a reservation recording function, a channel of a desired program and a broadcast start time, a broadcast end time, and the like are set, or a so-called G associated in advance with them. By setting a code or the like, program reservation recording is performed. However, since the broadcast program of the set channel is actually recorded from the set start time to the end time, for example, the start time of a desired program due to extension of baseball broadcasting or the like Is changed, the time at which the scheduled recording is performed and the actual broadcast time of the program are shifted, and there is a problem that only a part of the desired program is recorded or not recorded at all.

As a method for solving this problem, when there is a change in the start time of a program or the like, the broadcast station sends program broadcast time change information, and the recording / reproducing apparatus that receives the change information automatically sends the change information. A system has been devised in which the reservation recording time is changed, but the system has not been put into practical use due to the system change on the broadcast station side.

In such a conventional recording and reproducing apparatus,
As a measure to prevent the above-mentioned reservation recording failure and to surely record all desired programs, the user sets a reservation recording time in consideration of a change in program broadcast time, for example, initially scheduled. In general, a method is set in which a reservation is made from the program start time to the program end time expected when the program is changed due to extension of baseball broadcasting or the like.

[0005]

However, as described above, when the user performs the reservation recording in consideration of the change of the program broadcast time, the desired program is actually located at any position on a recording medium such as a magnetic tape. Since the recording is not started from the beginning, the user has to check the recorded data from the beginning to some extent. Since the conventional recording / reproducing apparatus does not consider the above points, when confirming where a desired program is recorded from, the user has to check at any time by fast-forwarding or the like, which is inconvenient in use. there were. Also, data (eg, baseball broadcast data) in which a program other than the desired program is recorded is unnecessary for the user, but in order to delete this in the conventional recording / reproducing apparatus, the user must fast-forward to an unnecessary data location. However, since it must be deleted as needed after being specified by rewinding or the like, there is a problem that the operation is not easy and the user is troublesome. Therefore, the present invention has been made in view of the above problems, and makes it easy for a user to access a desired program at the time of data reproduction for data that has been reserved and recorded in consideration of a change in program broadcast time in advance. In addition, an object of the present invention is to provide an optical disk recording / reproducing apparatus which is easy for a user to use by facilitating deletion of unnecessary recorded data.

[0006]

To solve the above-mentioned problems, the present invention provides an optical disk recording / reproducing apparatus having the following constitutions (1) and (2). (1) As shown in FIGS. 1 to 4, when recording data of a program scheduled to be broadcast between a first start time (recording start point) and a first end time on the optical disc 1 by reservation. Even if the actual broadcast start time is delayed from the first start time (recording start point) and the program is broadcast,
An optical disc recording / reproducing apparatus AA capable of recording the entire data of the program and enabling cueing of the program, comprising a first start time (recording start point), a first end time, and a first start time. Reservation setting means 10 for inputting reservation setting information necessary for reservation recording of a program including a second start time lower than the time and a second end time (recording end point) lower than the first end time; Recording of broadcast reception data (recording data) is started from a first start time (recording start point) based on the reservation setting information, and thereafter, the reception data is recorded at a second end time (recording end point). Recording means (recording processing circuit) 4 for terminating the recording of the received data (recording data) from the first start time (recording start point) to the second start time. Time interval (for example, every 5 minutes) In multiple of the index information A~G
Index information adding means (index adding circuit) 6 for sequentially giving the received data (indexing circuit) and the reception data (recording end point) recorded from the first start time (recording start point) to the second end time (recording end point). Playback means (playback processing circuit) 5 for playing back the recorded data) and playing back the received data (recorded data) recorded from the first start time (recording start point) to the second start time. And index information detection means (index detection circuit) 7 for detecting the plurality of pieces of index information A to G, and specifying the detected index information A to G to record the received data. Optical disc recording characterized by sequentially locating (recording data) and locating the program data contained in the received data (recording data). Raw devices. (2) The optical disc recording / reproducing apparatus AA according to claim 1, wherein the index information adding means (index adding circuit) 6 is configured to determine a time from a first start time (recording start point) to a second start time. A plurality of first index information items A to G are sequentially added at predetermined time intervals (for example, 5 minute intervals) to the received data (recorded data) recorded over the entirety, and the second index information is added from a first end time to a second index information. A predetermined time interval (for example, 5 minute interval) is added to the broadcast data (recorded data) recorded over the time until the end time (recording end point).
An optical disk recording / reproducing apparatus, wherein a plurality of second index information items a to g are sequentially added.

Further, the present invention can provide an optical disk recording / reproducing apparatus having the following configurations (A) to (D). (A) In an optical disc recording / reproducing apparatus having a reservation recording function, reservation setting for setting a first start time and a first end time of a program, and a second start time and a second end time of the program. Means, storage means for storing setting information by the reservation setting means, and data recording of the program reserved at the first start time or the second start time, and starting at the first end time or the second end time. Control means for stopping data recording of the program at the end time of the program, and adding index information at predetermined time intervals to data recorded between the first start time and the second start time. An optical disc comprising: index information adding means for performing index information detection; and index information detecting means for detecting the index information when reproducing the recorded data. Disc recording and playback device. (B) In the optical disk recording / reproducing apparatus according to (A), the identification information providing means may generate index information at predetermined time intervals for data recorded between the first start time and the second start time. And the first
An optical disk recording / reproducing apparatus characterized in that index information is added at predetermined time intervals to data recorded between the end time and the second end time. (C) The index information added to the data recorded between the first end time and the second end time is the first information.
The optical disc recording / reproducing apparatus according to (A) or (B) above, wherein the optical disc recording / reproducing apparatus is associated with index information added to data recorded between the start time and the second start time. (D) The optical disc recording / reproducing apparatus according to any one of (A) to (C), wherein, among the recorded data, data from data corresponding to the index information specified by a user to data at a recording start time, or An optical disc recording / reproducing apparatus, comprising: data deleting means for deleting data from data corresponding to the index information designated by the user to data at the time when recording is stopped, or both data.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the optical disk recording / reproducing apparatus according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a diagram showing a configuration example of an optical disk recording / reproducing apparatus according to one embodiment of the present invention.

First, an optical disk recording / reproducing apparatus AA according to an embodiment of the present invention comprises an optical head 2, a servo circuit 3, a recording processing circuit 4, a reproducing processing circuit 5,
Index assignment circuit 6, index detection circuit 7, control circuit 8, storage circuit 9, reservation setting means 10, operation means 1
1, a notification unit 12, and a data deletion circuit 13. In the figure, reference numeral 1 denotes an optical disk for recording and reproduction.

Next, a description will be given of a case where a reservation recording is performed using the optical disk recording / reproducing apparatus AA having the above-described configuration. The reservation setting unit 10 sets the reservation recording information according to the channel of the program to be reserved and inputted from the user, the first start time, the first end time, the second start time, and the second end time. Here, for example, the normal program start time and end time are set as the first start time and first end time, and the program start time expected when the program broadcast time is changed due to, for example, extension of a baseball broadcast. And the end time are set as a second start time and a second end time. Further, the second start time and the second end time may be set as delay times from the first start time and the first end time, respectively. Further, the channel, the first start time, and the first end time may be input by a so-called G code.

The reservation record information set by the reservation setting means 10 is stored in the storage circuit 9 through the control circuit 8. The control circuit 8 compares the current time with the first start time set in the reservation recording. When the current time reaches the first start time, the control circuit 8 executes the reservation recording according to the reservation recording information held in the storage circuit 9. The recording processing circuit 4 and the servo circuit 3 are controlled so as to start. The recording processing circuit 4 records the recording data on the optical disk 1 through the optical head 2. Servo circuit 3
Controls the optical head 2 so that data recording on the optical disc 1 is performed at a predetermined position. Further, the control circuit 8 compares the current time with the second end time, and controls the recording processing circuit 4 and the servo circuit 3 so as to stop the reservation recording when the current time reaches the second end time.

Under the control of the control circuit 8, the indexing circuit 6 has a predetermined time interval between the first start time and the second start time and between the first end time and the second end time. For example, index information is generated for print data at intervals of 5 minutes. The generated index information is recorded on the optical disk 1 through the recording processing circuit 4 and the optical head 2. The index information may be recorded in the header area of the recording data, or may be recorded in an area different from the recording data.

Here, the operation at the time of reservation recording will be described with reference to the flowchart of FIG. FIG. 2 is a flowchart showing an operation example at the time of reservation recording in the optical disk recording / reproducing apparatus AA. In FIG. 2, the predetermined time interval at which the index information is added to the recording data is 5 minutes.

First, the present time is compared with the first start time according to the reservation record information set by the user (S1). If the current time is the first start time (Y of S1), recording of the broadcast program of the channel corresponding to the reservation recording information is started (S2), but the first start time is still reached. If not (N in S1), the above time comparison (S1) is repeated. When recording is started, first, it is checked whether the current time is the second start time (S3). Here, if the current time is not the second start time yet (N in S3), the current time has passed 5n minutes (n = 0, 1, 2,...) From the first start time. It is checked whether it is time (S4), and the current time
When the start time is + 5n minutes (Y in S4), index information is added to the recording data, and when the current time is not the first start time + 5n minutes (N in S4), Returning to the comparison between the time and the second start time (S3), the subsequent steps are repeated. By this operation (operations S3 to S5), index information is added to the recording data between the first start time and the second start time at intervals of 5 minutes.

As a result of the comparison between the current time and the second start time (S3), if the current time is the second start time (Y in S3), then the current time and the first end time Comparison with the time (S6) is performed. If the current time is not the first end time (N in S6), this time comparison (S6)
Is repeated. If the current time has reached the first end time (Y in S6), the current time is compared with the second end time (S7). If the current time is not the second end time (N in S7), it is further checked whether the current time is the first end time + 5n minutes (n = 0, 1, 2,...). If the current time is the first end time + 5n minutes (Y in S8), index information is added to the recording data (S9), and the current time is the first end time + 5n minutes. If not (N in S8), the current time is again compared with the second end time (S7).
And the subsequent steps are repeated. By this operation (operations of S7 to S9), index information is added to the recording data between the first end time and the second end time at intervals of 5 minutes. If the result of the comparison between the current time and the second end time (S7) shows that the current time has reached the second end time (Y in S7), the recording being executed is stopped, and the reserved recording operation ends. (S10).

Next, the case of reproducing the recorded data will be described with reference to FIG. First, the index detection circuit 7 detects the index information recorded on the optical disk 1 through the optical head 2 and the reproduction processing circuit 5. The detected index information is notified to the user through the control circuit 8 and the notification means 12. The control circuit 8 controls each circuit so as to reproduce the data corresponding to the specified index according to the designation of the index by the user in the operation means 11, and the data read from the optical head 2 is processed by the reproduction processing circuit. 5 will be played.

If the reproduced data is not the beginning of desired program data, the user specifies the next index. In that case, the reproduction operation of the data corresponding to the designated index is performed in the same manner as described above.
Note that, instead of the user designating the index as described above, so-called intro reproduction may be performed in which the first few seconds of data corresponding to each index are automatically and sequentially reproduced.

Next, a case where unnecessary data is deleted will be described. When there is a delete command for the designated index from the user in the operation means 11, information on the delete command is sent to the data delete circuit 13 through the control circuit 8. The data deletion circuit 13 determines the range of data to be deleted (from which index to which index) according to the content of the deletion command, and controls the optical head 2 to predetermined data through the control circuit 8 and the servo circuit 3. Access is made and unnecessary data on the optical disk 1 is deleted through the optical head 2. Note that the operation of the data deletion circuit 13 may be performed by the control circuit 8 and the recording processing circuit 4.

Hereinafter, a method of attaching index information in the present invention will be described in detail with reference to FIGS.
FIG. 3 is a diagram showing an example of index information added to data recorded between a first start time and a second start time, and FIG. 4 is a diagram showing an example of index information from a first end time to a second end time. FIG. 6 is a diagram illustrating an example of index information added to data recorded until time. In FIGS. 3 and 4, the time between the first start time and the second start time and the time between the first end time and the second end time are both 30 minutes, and the predetermined time for adding the index information is 30 minutes. The interval is set to 5 minutes.

First, an index A (FIG. 3) is assigned to the data at the first start time (= recording start point). Next, an index B (FIG. 3) is assigned to the data at the time of the first start time + 5 minutes, and similarly, C, D,... (FIG. 3) are sequentially assigned to the data every 5 minutes. Finally, the data at the second start time is indexed as G (FIG. 3). The same applies to the index information attached from the first end time to the second end time, with the index a (FIG. 4) for the data of the first end time and the data of the first end time + 5 minutes. On the other hand, an index b (FIG. 4), and then c, d,.
(FIG. 4) is indexed, and finally, the data at the second end time (= recording end point) is indexed by g (FIG. 4). In the case of FIGS. 3 and 4, an index (a to g in FIG. 4) provided between the first end time and the second end time, the first start time, and the second
Index (A to FIG. 3)
G) are related, and A and a, B and b,... Correspond to each other.

Generally, the program broadcast time is often changed in units of 5 minutes. For example, if the program broadcast time is delayed by 15 minutes due to an extension of a baseball broadcast or the like, the desired program is D
(FIG. 3) to d (FIG. 4) are recorded. When program data is reproduced, indexing is sequentially performed by designating indexes A to G, or indexing is automatically performed for indexes A to G and reproduction is repeated for several seconds.
The so-called intro reproduction facilitates access to desired program data. Also, data before the index serving as the start point of the program (A to D in FIG. 3) and data subsequent to the index serving as the end point of the program (FIG.
Since d to g) are unnecessary data for the user, the apparatus of the present embodiment responds to the user's operation by using the previous data from the specified index, or the subsequent data from the specified index, or its data. Operate to delete both automatically. In the case of FIGS. 3 and 4, the user specifies the index of the program start point (D in FIG. 3) or the index of the program end point (d in FIG. 4), and the data before the program start (A in FIG. 3). To D) or data after the end of the program (d to g in FIG. 4) is automatically deleted.
Also, index information (A to G in FIG. 3) attached from the first start time to the second start time and index information (a in FIG. 4) attached from the first end time to the second end time To g), it is possible to delete unnecessary data before and after the program data only by specifying one index.
(In the case of FIGS. 3 and 4, the data A to D before D and the data d to g after d associated with D are deleted only by the user designating the index D of the program start point.)

According to the present invention as described above, the user can easily access a desired program at the time of data reproduction with respect to data that has been reserved and recorded in consideration of a change in program broadcast time, and Unnecessarily recorded data can be easily deleted. In the above description, for convenience, the first start time and the first end time are earlier than the second start time and the second end time, respectively. However, the second start time and the second end time are different. The end time is the first start time,
If the time is earlier than the first end time, the data recording is performed from the second start time to the first end time, and the index information is added from the second start time to the first start time. The control is performed so as to be performed between the second end time and the second end time to the first end time. Further, in the above description, the predetermined time interval when the index information is added to the data is set to 5 minutes. However, the user may arbitrarily set the time interval to 10 minutes, 15 minutes, or the like.

[0023]

According to the above-described optical disk recording / reproducing apparatus of the present invention, when the user performs reservation recording in consideration of a change in program broadcast time in advance, from the first start time to the second end time. It has a function of performing program reservation recording, adding index information at predetermined time intervals to data recorded between the first start time and the second start time, and detecting the index information during data reproduction. Thereby, it is possible to easily access (search for) a desired program at the time of data reproduction.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration example of an optical disc recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an operation example at the time of reservation recording in the optical disc recording / reproducing apparatus shown in FIG.

FIG. 3 is a diagram showing an example of index information added to data recorded between a first start time and a second start time.

FIG. 4 is a diagram showing an example of index information added to data recorded between a first end time and a second end time.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Optical disk 4 Recording processing circuit (recording means) 5 Reproduction processing circuit (reproduction means) 6 Index provision circuit (index information provision means) 7 Index detection circuit (index information detection means) 10 Reservation setting means A to G, a to g index Information AA optical disk recording and playback device

Claims (1)

[Claims] 1. When data of a program scheduled to be broadcast between a first start time and a first end time is reserved and recorded on an optical disc, the actual broadcast start time is equal to the first broadcast time.
An optical disc recording / reproducing apparatus which can record the entire data of the program and can search for the start of the program even if the program is broadcast later than the start time of the program. A reservation for inputting reservation setting information necessary for reservation recording of a program including a first end time, a second start time lower than the first start time, and a second end time lower than the first end time. Setting means, based on the reservation setting information, recording means for starting recording of broadcast reception data at a first start time, and thereafter ending recording of the reception data at a second end time; Index information adding means for sequentially adding a plurality of pieces of index information at predetermined time intervals to the reception data recorded over a period from a first start time to a second start time; A reproducing unit that reproduces the received data recorded over a period of time from a first start time to a second start time. Further comprising index information detecting means for detecting the plurality of index information, designating the index information to be detected, sequentially performing the cueing of the recorded reception data, included in the reception data An optical disk recording / reproducing apparatus for locating the data of the program.