KR20080049862A - Method for safely recording data on dvd disk in a hdd-dvdr system - Google Patents

Abstract

A reservation recording method in case of lack of DVD disk residual quantity in an HDD-DVDR system is provided to compare a recording possible time with a predictable recording time of the program and to carry out reservation recording while recording quality of the program is degraded by steps when the recording possible time is not sufficient. A reservation recording method during shortage of DVD disk residual quantity in an HDD-DVDR system comprises: checking whether a user sets reservation recording of a reservation set program(S202); calculating recording possible time according to residual volume of the DVD disk during the reservation recording time(S204), comparing the recording possible time with the predictable recording time of the program(S210); and making low recording quality of the program by steps when the recording possible time is shorter than the recording time of the recording possible program(S216).

Description

How to make a reservation when there is not enough DVD disk in the HDD-DVD DVR system {METHOD FOR SAFELY RECORDING DATA ON DVD DISK IN A HDD-DVDR SYSTEM}

1 is a schematic block diagram of an HDD-DVDR system to which an embodiment of the present invention is applied;

2 is a flowchart illustrating an operation control for stable reservation recording when the remaining amount of DVD disk is insufficient in an HDD-DVDR system according to an exemplary embodiment of the present invention.

<Brief description of the major symbols in the drawings>

100: loader 102: pickup

104: RF amplifier 106: DSP unit

108: servo unit 110: memory

112: control unit 114: key input unit

116: HDD recording / playback unit 118: HDD

120: OSD unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a DVD system, and more particularly, to a method capable of stably recording a reserved recording even when the remaining amount of DVD disk is insufficient during a reserved recording in an HDD-DVDR combo system having a hard disk drive (HDD).

Typically, two or more different devices connected to one integrated system are referred to as a "combination system" or "combo-system", which is abbreviated as "combo". A representative example of such a combo system is a VCR / DVD combo system developed to perform a combination of a digital video disk player (DVDR) and a video cassette recorder (VCR).

Recently, video recording / reproducing devices such as HDD-DVDR with built-in HDD have been developed to record a large amount of video data such as TV. Among them, HDD type HDD-DVDR system with built-in HDD has been developed. In addition to the ability to play multiple DVD discs, the DVD-RW can be backed up by using the DVD-RW function for the video data that needs to be backed up from the large-capacity video data stored on the HDD. With RW, the demand is on the rise.

In the HDD-DVDR system with the built-in HDD as described above, all the HDD or DVD disks can be used by one multimedia player. Therefore, the user can select and record / reserve the broadcast program recorded on the HDD or DVD disk. I can do it.

At this time, in the HDD-DVDR system with a built-in HDD, when the program data such as drama and movie, which is requested for reservation recording when reserved recording using each storage medium such as HDD or DVD disk, is larger than the remaining capacity that can be recorded in the DVD disk, When the remaining capacity of the DVD disc is not enough, recording is performed by adjusting the DVD recording quality, or recording is performed as much as the remaining capacity of the DVD disc, and then the HDD mode is changed to store the remaining amount.

However, there is a problem of wasting the remaining DVD capacity by changing the DVD recording quality in case of displaying a low alarm as in the conventional HDD-DVDR system, and also in case of saving by switching the mode during recording. There was a problem to copy.

Accordingly, an object of the present invention is to provide a method for stably recording a recording even when the remaining amount of DVD disk is insufficient when recording a recording in the HDD-DVDR combo system.

The present invention for achieving the above object is a method for stably recording reservation even when the remaining capacity on the DVD disk in the HDD-DVDR system, (a) whether or not the scheduled recording setting time of the program set by the user reserved recording (B) calculating the recordable time according to the remaining amount of the DVD disc when the scheduled recording time is reached; and (c) the recordable time on the DVD disc based on the estimated recording time of the scheduled recording program. And (d) if the recordable time on the DVD disc is smaller than the recording time of the reserved recording program, performing recording by lowering the recording quality of the program in stages. .

Hereinafter, with reference to the accompanying drawings will be described in detail the operation of the preferred embodiment according to the present invention.

FIG. 1 is a schematic block diagram of an HDD-DVDR system incorporating an HDD to which an embodiment of the present invention is applied. Hereinafter, referring to FIG. 1, the present invention provides a method for preventing insufficient DVD remaining in a HDD-DVDR system. The operation in each component will be described in detail.

1, the digital signal processor (DSP) unit 106 adds additional data for an error correction code (ECC) to the encoded data and modulates the data according to a predetermined modulation scheme.

The RF amplifier 104 amplifies the electrical data input from the DSP unit 106 and converts it into an optical signal. The pickup section 102 incorporates an actuator for focusing and tracking, and records the optical signal converted by the RF amplifier section 104 on a disc.

The servo 108 receives the information necessary for servo control from the DSP 106 through the RF amplifier 104 and the controller 112 to perform stable servo. The control unit 112 controls the overall operation of the entire system and transmits data to the disc through the DSP unit 106, the RF amplifier 104, and the pickup unit 102 according to the user's key input through the key input unit 114. Record it.

Next, during reproduction, the pick-up 102 reads out the optical signal from the disk storing the data. The RF amplifier 104 converts an optical signal output from the pickup unit 102 into an electrical signal and extracts a servo signal and modulated data for performing servo.

The DSP unit 106 demodulates the data modulated by the RF amplifier 104, removes additional data while correcting an error by performing ECC, and the pickup unit 102 according to the actuator up / down command of the controller 112. A signal for driving the lens actuator is generated. The servo unit 108 receives information necessary for servo control from the RF amplifier 104 and the controller 112 and performs stable servo.

The HDD recording / reproducing unit 116 converts the video data signal input under the control of the control unit 112 into a hard disk recording format and records the same on the HDD 118, and backs up data to new DVD media in the DVD loader. During playback for back-up, binary data read from HDD 118 is restored to video data and applied to new DVD media in the loader.

The controller 112 controls the overall operation of the entire DVD system and controls the DSP unit 106, the RF amplifier 104, and the pick-up 102 according to a user's key input. Data is recorded on the disc) or data is reproduced from the DVD recording / playback disc 100. In addition, the controller 112 changes the recording quality of the program set in the reserved recording mode to a lower recording quality mode step by step when the remaining recording capacity on the DVD disc is insufficient in the scheduled recording in the HDD-DVDR system according to an embodiment of the present invention. By realizing the recording of the reserved recording program, the recording can be stably performed even if the remaining capacity on the DVD disc designated as the recording medium is insufficient.

FIG. 2 is a flowchart illustrating an operation control flow that enables a stable recording to be performed even when the remaining amount of DVD disk is insufficient in an HDD-DVDR system according to an exemplary embodiment of the present invention.

First, the control unit (micom) 112 of the HDD-DVDR system waits for a user's command through the key input unit 114 when the power is turned on (S200). Accordingly, when there is a broadcast program to be recorded through the key input unit 114, the user may set recording or scheduled recording at a specific time so that recording or scheduled recording is performed on a DVD disc inserted in the HDD-DVDR system. .

Subsequently, the controller 112 performs an operation according to the user's key input in step S202, and checks whether the reservation recording time set by the user is reached.

At this time, if the scheduled recording time set by the user is reached, the control unit 112 proceeds from step S202 to step S204 to calculate a recordable time for the remaining capacity on the current DVD disc, and requests a reservation recording by the user. It is checked whether the recording time of the broadcast program exceeds this.

At this time, if the recording time of the program set by the user is smaller than the recording time of the remaining capacity on the DVD disk, the control unit 112 proceeds from step S204 to step S206 and on the DVD disk. The scheduled recording program is recorded with the recording quality set by the user.

On the other hand, if the recording time of the program set by the user is larger than the recording time of the remaining capacity on the DVD disk, the control unit 112 proceeds from step S204 to step S208 by the user. After changing the recording quality to one level lower than the set recording quality, in step S210, the recordable time on the DVD disc according to the above recording quality change is recalculated, and the recording time of the broadcast program requested for scheduled recording by the user. Check whether this is exceeded.

At this time, if the recording time of the program set by the user in the scheduled recording is still greater than the recordable time on the DVD disk increased according to the change in the recording quality, the control unit 112 repeats the steps (S212) to (S208) After continuously checking whether or not recording on the DVD disc is possible until the lower recording quality mode does not exist than the set recording quality, and if there is no lower recording quality mode, the operation proceeds from step S212 to step S214. After proceeding to record the corresponding program requested by the reservation recording on the HDD 118, and outputs a message indicating this.

On the contrary, if the recordable time on the DVD disc increased due to the change to the lower recording quality is greater than the recording time of the program set by the user, the control unit 112 moves from step S210 to step S216. The program proceeds to record the program set by the user on the DVD disc.

As described above, in addition to recording the program set on the DVD disc with the changed recording quality, the controller 112 records the program originally set by the user on the HDD 118 in the step S218. After recording, the program data recorded on the HDD 118 is backed up on the DVD disk in step S220 according to a user's selection.

As described above, in the present invention, when the recording capacity on the DVD disc is insufficient during the reserved recording in the HDD-DVDR system, the recording quality of the reserved recording program is changed while changing the recording quality of the reserved recording program to the lower recording quality mode step by step. In this case, the reserved recording can be stably performed even if the remaining capacity on the DVD disc designated as the recording medium is insufficient.

Meanwhile, the embodiments of the present invention described above have been described in detail, but various modifications can be made without departing from the scope of the present invention. Therefore, the scope of the invention should be determined by the claims rather than by the described embodiments.

As described above, in the present invention, when the remaining recording capacity on the DVD disc is insufficient during the reserved recording in the HDD-DVDR system, the reserved recording program is set while changing the recording quality of the reserved recording program to a lower recording quality mode step by step. By realizing the recording of the recording, there is an advantage that the reserved recording can be stably performed even if the remaining capacity on the DVD disk designated as the recording medium is insufficient.

Claims (3)

(a) checking whether the scheduled recording time of the program set by the user is reserved; (b) calculating the recordable time according to the remaining capacity of the DVD disc when the scheduled recording time comes; (c) comparing the recordable time on the DVD disc with an expected recording time of the scheduled recording program; (d) if the recordable time on the DVD disc is smaller than the recording time of the reserved recording program, performing recording by lowering the recording quality of the program step by step; In the HDD-DVDR system that includes a DVD recording method when the remaining capacity of the disk. The method of claim 1, In step (d), if the recordable time on the DVD disc is less than the recording time of the reserved recording program, the recording quality of the program is decreased by one step to recalculate the recordable time on the DVD disc; (d2) checking whether the recordable time on the DVD disc according to the recording quality change is greater than the recording time of the reserved recording program; (d3) recording the corresponding program on the DVD disc when the recordable time on the changed DVD disc becomes larger than the recording time of the reserved recording program; In the HDD-DVDR system characterized in that it comprises a reserved recording method when the remaining amount of DVD disk. The method of claim 1, When recording starts with the changed recording quality on the DVD disc, (e) simultaneously recording the scheduled recording program at the recording quality originally set on the HDD; (f) after the recording on the HDD is completed, backing up the program recorded with the original recording quality on a newly loaded DVD disc according to a user's selection; In the HDD-DVDR system characterized in that it comprises a reserved recording method when the remaining amount of DVD disk.

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