CN1992047A

CN1992047A - Recording method and reducing method for breakpoint of DVD-R/RW media player power failure

Info

Publication number: CN1992047A
Application number: CN 200510112478
Authority: CN
Inventors: 金熙泳
Original assignee: Shanghai LG Electronics Co Ltd
Current assignee: Shanghai LG Electronics Co Ltd
Priority date: 2005-12-30
Filing date: 2005-12-30
Publication date: 2007-07-04

Abstract

The invention relates to a recording method and recovering method of interrupt point when power source of DVD-R/RW media player gets out of order during the recording, it includes four steps as following: step of detecting that whether current data player is in cache underloading mode; Step of storing the current recorded information into memory; step of detecting whether there is power fault; step of storing the marker information which shows fault into memory. In addition, the invention includes four steps as following: step of detecting whether the disc is recognized renewably; step of detecting whether the current disc is same as the original disc; step of affirming the marker information of fault and address of storing the marker information and then detecting the un-recording point; step of recording data from said un-recording point.

Description

The recording method of the point of interruption and method of reducing during the DVD-R/RW media player power failure

[technical field]

The recording method and the method for reducing of the record point of interruption when this invention relates to the DVD-R/RW media player and in recording process power fail takes place, relate in particular to the DVD-R/RW media player when power down (PowerFail: to call in the following text ' power fail ') takes place in storing process, the method that can find out the record point of interruption rapidly and reduce rapidly.

[background technology]

Concerning the DVD-R/RW media player, difference according to the recording of information method of current posting field, at least can be divided into record management data (to call in the following text ' RMD ') standard 1 or standard 3, at this moment, because the RMD district is limited, so be not that every record can both upgrade RMD, under limited logging mode (Restricted Overwrite Mode), the capacity of posting field increases more than the 4MB (128ECC blocks), when but operation of recording rested on next recording address, just registered with the last sector numbers of the RZone #n project in RMD zone 3 in effective standard 3 address of writing down at last.(number of times that can revise a RMD setting is approximately 135000 times.Because exist 5 RMD to be provided with, so the RMD total degree that can upgrade in CD is 140000 times.) [with reference to DVD-RW Spec.Annex U, with reference to Annex Z].

When carrying out incremental record (Incremental Recording), be more than 8192 if be recorded the sector numbers and the last difference between " the writing down the address of RZone#I at last " of registering on the RMD of sector among the RZone#I at last, just upgrade RMD standard 1.[with reference to DVD-RW Spec.Annex Z]

But, in the recording process of this mode, if power down (Power Fail) takes place suddenly because do not upgrade RMD, thus must by RECD from before measuring point begin to search not posting field.At this moment, if search the CD All Ranges, just can take a long time, so under the restriction logging mode, detect the 4M byte area, under the incremental record pattern, just detect the 16M byte area, if demonstrate not posting field, just with respective point as the next record address, and upgrade RMD.

At this moment, if having exceeded surveyed area, recorded content originally will bring infringement (damage), the storage time of DVD player is the longest may to spend 6 hours, because beginning, storage finishes, therefore can store whole CD, so, when power supply breaks down, just can bring the lot of data loss.

[summary of the invention]

Described problem proposes this invention in order to solve just, and its purpose is to provide following method: when power supply breaks down, can find out the record point of interruption at an easy rate, and the method for reducing rapidly.

In order to realize described purpose, the recording method of the record point of interruption comprised following four steps when the DVD-R/RW media player of this invention in recording process power fail took place: whether the state that detects the available data player is in the step of Buffer Under Run pattern; Deposit the information of current posting field in the storer step; Detect the step whether power fail takes place; To show that the label information that power fail takes place deposits the step in the storer in.

In the present invention, described storer preferably uses EEPROM.

In the present invention, if comprise final area address information that final data is write down in the information of described current posting field then more satisfactory.

The method of reducing of the record point of interruption comprised following four steps when in addition, the DVD-R/RW media player of this invention in recording process power fail took place: detect whether to require step that dish is discerned again; Detect the whether identical step of the CD that inserts at present and original CD; The label information that whether demonstration is taken place power fail is confirmed, and the address of this label information of affirmation record, detects the not step of measuring point then; Step from described not measuring point opening entry data.

In this invention, to the retrieval of described not measuring point if in the back region of store memory storage address, carry out then more satisfactory.

In this invention, if retrieve whether identical with original CD described CD method utilize mode that whether pallet operation takes place then more satisfactory.

In sum, if power fail takes place in recording process, utilize this invention can reduce the needed time of reduction process, thereby reach the effect that prevents Unrecorded corrupted data.

[description of drawings]

Fig. 1 is the recording method process flow diagram of DVD-R/RW media player that an embodiment with this invention is the foundation record point of interruption when in recording process power fail taking place;

Fig. 2 is the method for reducing process flow diagram of DVD-R/RW media player that an embodiment with this invention is the foundation record point of interruption when in recording process power fail taking place.

[embodiment]

Desirable embodiment to this invention is elaborated with reference to the accompanying drawings.In the accompanying drawing below each component part has all been added corresponding numeric character, for same component part, in different accompanying drawings, may use same numeric character, under the prerequisite that does not influence this invention general idea, just be not elaborated for well-known function and formation.

Fig. 1 is the recording method process flow diagram of DVD-R/RW media player that an embodiment with this invention is the foundation record point of interruption when in recording process power fail taking place.

The recording method of the record point of interruption was as follows when as shown in Figure 1, the DVD-R/RW media player in recording process power fail took place.

Step S101 is the process whether recording status of the present CD of detection is in the Buffer Under Run pattern.For DVD player, be not have to carry out record with stopping, but in during rear end (back-end) encodes to data, detect whether be in the Buffer Under Run pattern by toter (loader) utilization Buffer Under Run pattern.

Step S102 deposits the current area information that has write down in the storer process.The result that described step 101 detects is if be in the Buffer Under Run pattern, and the information that just will enter before the Buffer Under Run pattern in the zone of the enterprising line item of CD deposits in the storer.Clearly, according to user's difference, the information of the posting field in the described CD can have nothing in common with each other, but if comprises the address information of last posting field in the data then more satisfactory.Described storer can certainly be diversified, still, in the present invention, uses EEPROM more satisfactory.

Step S103 and step S104 are under the situation that power fail takes place, the process of storage mark information.In described step S103, under the situation that power fail takes place, simultaneously label information is deposited in the storer.Described label information is stored during preferably with information of same that power fail takes place.

The storage means of the information of the record point of interruption when so far, power fail being taken place DVD-R/RW is illustrated.Below, will utilize the above-mentioned information that has write down, the method for reducing of the recording process point of interruption is described.

The method of reducing of the record point of interruption was as follows when as shown in Figure 1, the DVD-R/RW media player in recording process power fail took place.

Step S201 detects the process of discerning CD whether again.If main frame requires to discern CD again, just read out optical disc information in the CD of present insertion.

Whether identical with former CD step S202 detect the CD that inserts at present process.Because now the EEPROM stored the interruptive area information in the video disc recording process of interruption logging before this, thus carry out record if insert other CDs, just institute's canned data loses meaning in the described EEPROM.Therefore, if the CD that is inserted is not a former CD, just turn back to step S101.Judge that whether the CD inserted is that method that the CD of power fail takes place before this is to utilize to judge whether that the mode that pallet operation (tray operation) takes place confirms.

Step S203 is for confirming label information and beginning to detect the not process of measuring point from the address of EEPROM stored.In this invention, enter the Buffer Under Run pattern after because will in the next record process power fail take place, so if in the back region of the address of writing down among the EEPROM whether the occurrence record point of interruption retrieve then be more satisfactory.

Step S204 is for beginning to store the process of data from the record point of interruption that retrieves.

As mentioned above, this invention desirable embodiment only is for the illustration purpose, in related work personnel the claim item is put down in writing fully below this invention technological thought and technical scope thereof, other various embodiment are improved, change, replace or add.

Claims

The recording method of the record point of interruption is characterized in that when 1, a kind of DVD-R/RW media player in recording process power fail took place, and comprised:

Whether the state that detects the available data player is in the step of Buffer Under Run pattern;

Deposit the information of current posting field in the storer step;

Detect the step whether power fail takes place;

To show that the label information that power fail takes place deposits the step in the storer in.
The recording method of the record point of interruption is characterized in that when 2, in recording process power fail taking place as claim item 1 described DVD-R/RW media player,

Described storer is EEPROM.
The recording method of the record point of interruption when 3, in recording process power fail taking place as claim item 1 described DVD-R/RW media player is characterized in that:

The address information that includes the final area that writes down final data in the information of current posting field.
The method of reducing of the record point of interruption is characterized in that when 4, a kind of DVD-R/RW media player in recording process power fail took place, and comprised:

Detect and whether to require step that CD is discerned again;

Detect the whether identical step of the CD that inserts at present and original CD;

The label information that whether demonstration is taken place power fail is confirmed, and the address of this label information of affirmation storage, detects the not step of measuring point then;

Step from described not measuring point opening entry data.
The method of reducing of the record point of interruption when 5, in recording process power fail taking place as claim item 4 described DVD-R/RW media players is characterized in that:

Detection to described not measuring point is to carry out in the back region of the address area that store memory stores up.
The method of reducing of the record point of interruption when 6, in recording process power fail taking place as claim item 4 described DVD-R/RW media players is characterized in that:

Whether utilize the mode whether pallet operation takes place to detect described CD identical with original CD.