KR100566970B1 - Method for copying video record products and Personal Video Recorder which is embodied in it - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electric and electronic related arts, and more particularly, to a personal video recorder (PVR) for recording and playing back input broadcast program data on a hard disk drive (HDD) by digital compression.

The present invention can more easily and conveniently copy the recordings stored therein to a connected external storage medium, and a recording method for copying recordings stored in the external storage medium to the hard disk drive and a personal video recorder in which the method is implemented. PVR) has a purpose.

Furthermore, an object of the present invention is to provide a method of copying recordings capable of dividing recordings having a large storage capacity and storing them in an external storage medium, and a personal video recorder (PVR) in which the method is implemented.

Personal Video Recorder, PVR, Personal Video Recorder, EPG, External Storage, Recording, Copy

Description

Method for copying video record products and Personal Video Recorder which is embodied in it}

1 is a block diagram illustrating a personal video recorder according to an embodiment of the present invention.

2 is a flowchart illustrating a method of copying a recording according to an embodiment of the present invention.

   2A illustrates a process of copying recordings stored in an external storage medium to a personal video recorder.

   2b illustrates a process of copying recordings stored in a personal video recorder to an external storage medium.

   2C and 2D illustrate a process of dividing and copying recordings stored in a personal video recorder to a plurality of external storage media.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electric and electronic related arts, and more particularly, to a personal video recorder (PVR) for recording and playing back input broadcast program data on a hard disk drive (HDD) by digital compression.

In general, a personal video recorder (PVR) is a product that can reserve and play a specific broadcast program using electronic program guide (EPG) information. Here, the personal video recorder (PVR) provides a schedule for a predetermined period (usually seven days) and detailed program related information, and updates the program guide information by accessing the EPG server through a modem or high-speed Internet once a day.

The personal video recorder (PVR) can be stored while watching live broadcasts, and can be shown from the unviewed portion even if the user is away for a while while watching live broadcasts. Furthermore, a personal video recorder (PVR) uses a hard disk drive to digitally store the image, so that the image quality does not deteriorate even after multiple recordings, and has the advantage of completely restoring the original image during playback. In addition, the personal video recorder (PVR) can search for a desired image faster than the conventional magnetic tape recorder (VTR). Recently, the demand for personal video recorders (PVR) is gradually increasing in the market.

Accordingly, the inventors of the present application came to think of a function of easily and conveniently copying recordings recorded on a personal video recorder (PVR) to an external storage medium (for example, a 2.5-inch removable HDD device, a USB memory, an external flash memory device, etc.). . In addition, the user can easily manage the recordings stored in the external storage media, and furthermore, the ability to conveniently copy them to a personal video recorder (PVR).

The present invention has been proposed in the background as described above, and can easily and conveniently copy the recordings stored therein to the connected external storage medium, and the recording method for copying the recordings stored in the external storage medium to the hard disk drive and The purpose is to provide a personal video recorder (PVR) in which the method is implemented.

Furthermore, an object of the present invention is to provide a method of copying recordings capable of dividing recordings having a large storage capacity and storing them in an external storage medium, and a personal video recorder (PVR) in which the method is implemented.

A personal video recorder according to an aspect of the present invention for achieving the above object is a variety of external storage media, such as via an input and output interface including a universal serial bus (USB), IEEE 1394, Ethernet (Ethernet), etc. And at least one of a 2.5-inch removable HDD device, a USB memory, an external flash memory device, and the like, and through the input / output interface, copy recordings stored in an external storage medium to an internal hard disk drive or externally record recordings stored in a hard disk drive. Copying to a storage medium.

According to this aspect, the user can keep the recording permanently as necessary or keep the recording on an external storage medium when the storage capacity of the built-in hard disk drive is insufficient.

A personal video recorder according to an additional aspect of the present invention generates GOP location information for forming an image by combining an MPEG recording stream into a predetermined number of image files to enable random access from an internal hard disk drive. It is done.

According to this aspect, the user can quickly search for a desired part during video playback, and when storing the recordings in the external storage medium, it is convenient to manage the additional information of the recordings stored in the external storage medium by storing them in GOP units.

According to an additional aspect of the present invention, if a copy stop signal is input during copying of the recorded data, the personal video recorder may copy up to the currently copied GOP portion.

By playing back the copied recordings according to this aspect, it is possible to prevent incomplete picture or sound at the end of the recorded data.

A personal video recorder according to an additional aspect of the present invention is characterized by generating additional information including identification information of a recording and contents of the recording data, a reproduction time, and a recording date and time when the recording data is copied.

According to this aspect, the user or personal video recorder can easily distinguish each recording when copying recordings recorded by another personal video recorder.

Furthermore, a personal video recorder according to another aspect of the present invention divides and copies the recordings to a plurality of external storage media, but copies to a plurality of external storage media having the same storage space or a plurality of external storage media having an arbitrary storage space. It can be divided into and copied.

According to this aspect, the user can copy regardless of the size of the recording. In addition, the user may copy only the necessary portions of the recordings when copying the recordings to a plurality of external storage media having the same storage space.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce the present invention. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

First, FIG. 1 shows a block diagram of a personal video recorder according to an embodiment of the present invention.

Referring to FIG. 1, the personal video recorder according to the present exemplary embodiment is an operation unit for receiving a user's operation command, and includes a user interface unit 10, a remote control receiver 12, a storage unit 14, and an external storage medium interface unit 16. ), A controller 18, a video ADC 20, an audio ADC 22, an MPEG encoder / decoder 24, and a graphics / audio processor 26.

The user interface unit 10 includes a plurality of function buttons such as a power on / off button, a play / stop button, a recording mode selection button, and a copy mode selection button. The remote controller 12 receives a user remote wireless signal and uses a conventional infrared receiver.

The storage unit 14 stores recorded data and is implemented as a hard disk drive (HDD). The external storage medium interface unit 16 supports data communication with the external storage medium, and may be implemented as a universal serial bus (USB), an IEEE 1394, or an Ethernet (Ethernet) LAN module.

 The controller 18 is preferably implemented as a microprocessor integrated ROM, RAM, and peripheral devices, and controls the overall operation of the system. The control unit 18 preferably copies the recordings stored in the external storage medium to the hard disk drive through the external storage medium interface unit 16 according to an operation signal of the operation unit, or externally stores the recordings stored in the hard disk drive. Controls copying to media. Detailed configuration and operation effects of the control unit 18 will be described later.

 The video ADC 20 and the audio ADC 22 are received through a tuner (not shown) and convert the separated broadcast video and audio signals into digital data.

The MPEG encoder / decoder 24 encodes the digitally converted video and audio data output from the video ADC 20 and the audio ADC 22 to the control unit 18 by encoding the MPEG-2 standard. In this case, the encoded video and audio data input to the controller 18 are input to the hard disk drive (HDD) in the form of a recording stream, and are recorded and stored in the designated area.

The graphic / audio processor 26 converts and outputs a digital video and audio signal output from the MPEG encoder / decoder 24 according to a display device format, and at least one screen, that is, a main part, under the control of the controller 18. It can be displayed as a sub screen or a playlist display window. In the present embodiment, the display device may be a TV or a liquid crystal display monitor.

As shown in Fig. 1, according to a characteristic aspect of the present invention, the control unit 18 includes a recording unit 181, a recording list providing unit 182, a copy information generating unit 183, and a copy stop information generating unit. 185, a copy reservation management unit 186, a copy execution unit 187, and an external storage medium connection processing unit 189.

The recording object generator 181 stores an MPEG stream in which a video signal inputted as an input source is encoded through the MPEG encoder and recorded. In this embodiment, the recording object generating unit 181 combines the identification information for distinguishing the recorded MPEG stream file (recording) and the recording stream into a predetermined number of image files to form a single moving picture (Group) Of Picture) Creates additional information informing location information and contents of recordings.

In one embodiment, the recording identification information includes the year, month, day, hour, minute, second and product unique number of the recorder, a random number of a certain size, and a product unique number of the recorder. Includes delimiters, such as commas (,) or minus signs (-), to allow random numbers of size to be distinguished. The additional information of the recording may include a title of the recording, a recording date and time, and a playback time.

On the other hand, GOP (Group Of Picture) location information may be provided in the MPEG encoder. However, the personal video recorder according to the present embodiment may be implemented to automatically generate group of picture (GOP) location information even when the MPEG encoder does not provide group of picture (GOP) information. In one embodiment, the method for generating GOP (Group Of Picture) location information may generate / store GOP (Group Of Picture) information by parsing the MPEG stream in a predetermined unit while storing the MPEG stream. In one embodiment, one GOP (Group Of Picture) information is composed of 12 to 15 image files. In other words, if one GOP (Group Of Picture) information includes 15 pieces when 30 pictures are output in one second, the same picture is formed in two GOP (Group Of Picture) units per second. Accordingly, the personal video recorder can calculate the play time through the GOP (Group Of Picture) information.

The recording list providing unit 182 reads a list of recordings stored in the storage medium from the hard disk drive when an operation command for copying the recordings stored on the external storage medium from the control panel to the personal video recorder (or vice versa) is input. In one embodiment, the list of recordings may be implemented as additional information.

The copy information generation unit 183 checks whether the copy-selected recording can be copied to the hard disk drive or an external storage medium by checking whether the recording medium has the same identification information or whether there is free storage space. And generates copy information including identification information of the selected recording object, target storage medium information storing the recording data, and overwriting or resuming information according to an operator's operation command.

In one embodiment, the copy information generation unit 183 stores the first storage space of the target storage medium when there is no list in the copy schedule list, and then limits the first storage space each time a recording is added to the copy schedule list. You can check whether there is free space in the storage media to copy the recordings selected by the operator. Here, the copy information generation unit 183 may inform the user that copying is impossible when the storage space of the target storage medium becomes smaller than the minimum free space set by the operator or according to the application program. Accordingly, the operator can immediately know whether the currently selected recording can be copied to the storage medium.

The copy stop information generation unit 185 generates copy stop information of the recording according to a user's operation signal. In one embodiment, the copy stop information may include information for stopping the copy of all or part of the copy list registered in the copy reservation list.

The copy reservation management unit 186 receives the copy information of the recording from the copy information generation unit 183 and registers it in the copy reservation list, and a copy completion signal is input or the copy stop information is received from the copy stop information generation unit 185. If input, deletes the copy information of the corresponding recording registered in the copy schedule list.

The copy execution unit 187 reads the recording data of the recordings registered in the copy reservation list according to the copy information input from the copy reservation management unit 186 and copies the recorded data from the hard disk drive or an external storage medium to the corresponding storage medium. When the copy stop signal is input, copying stops. On the other hand, the copy performing unit 187 outputs a copy completion signal when the copy of the recording is completed and copies the additional information of the copied recording to the target storage medium.

In addition, the copy performing unit 187 copies the recorded data in units of GOP, but copies the recorded data to the current GOP part when a copy stop signal is input from the copy reservation management unit 186 during copying of the recorded data. At this time, the copying unit 187 modifies the identification information and the additional information of the recordings of which copying is stopped and copies them to the corresponding storage medium. In one embodiment, the additional information of the recording of which copying is stopped is changed to the reproduction time obtained from the amount of GOP information copied only from the reproduction time of the additional information of the original recording.

In addition, the copying unit 187 checks whether the recording copy information includes the overwriting or resuming information, and deletes the recording data having the same identification information recorded on the target storage medium when the overwriting information is included. When the receiving information is included, the file pointer of the recorded data having the same identification information recorded on the source storage medium and the target storage medium is placed at the same location, and then a copy operation is performed.

When the external storage medium connection processor 189 determines that at least one external storage medium is connected, the external storage medium connection processor 189 assigns the storage medium numbers in the connected order. The storage medium number is used when generating the above-mentioned copy information. In addition, the external storage medium connection processing unit 189 reads the free space of the external storage medium, a list of stored recording data, identification information and additional information of the recording to the hard disk drive. Furthermore, the external storage medium connection processing unit 189 automatically generates additional information including at least the title of the recording, the recording date and time, and the playback time when the external storage medium does not have additional information about the recording. In one embodiment, the title of the recording may be set as 'Untitled', the recording date and time and the playback time can be obtained through the GOP information.

According to another aspect of the present invention, the control unit 18 further includes a split copy performing unit 188. The divisional copying unit 188 reads the recorded data of the recordings registered in the copying reservation list from the hard disk drive in accordance with the copy control signal input from the copying reservation management unit 186 and divides and copies the recorded data to a corresponding external storage medium. When the copy stop signal is input, copying stops. On the other hand, when the copy of the recording is completed, a copy completion signal is output, and the identification information and the additional information of each copied separate recording are modified and copied to the target storage medium.

In one embodiment, the identification information of the separated recording allows the user to distinguish it from the original recording by newly changing a random random number. Meanwhile, the title of the recording among the additional information of the separate recording is changed to the title of the new recording generated by attaching an additional number to the title of the original recording, and the playback time is changed to the playback time obtained through the amount of copied GOP information.

In one embodiment, the divided copy performing unit 188 may divide and copy to a plurality of external storage media having the same storage space. In another embodiment, the divided copy performing unit 188 may divide and copy the data to a plurality of external storage media having different storage spaces. In this case, the user may copy an arbitrary second separate recording when splitting copies to a plurality of external storage media having the same storage space.

According to this characteristic aspect, the copy information generating unit 183 further includes information on whether to copy the split information and the copy range information and whether or not to copy to a plurality of external storage media having the same storage space or any storage space in the copy information. Include. In one embodiment, the copy range information may be implemented as GOP location information.

Hereinafter, a method of copying recordings performed in a personal video recorder will be described in detail with reference to the accompanying drawings.

2A illustrates a process of copying recordings stored in an external storage medium to a personal video recorder according to an embodiment of the present invention.

Referring to FIG. 2A, first, the controller 18 reads recording data, identification information, and additional information of a storage space and a recording from a connected external storage medium (S41). In this case, when the external storage medium does not have additional information about the recording, the controller 18 automatically generates additional information including at least the title of the recording and the recording date and time.

Thereafter, the controller 18 receives information about whether to copy the recording stored in the external storage medium to the hard disk drive or the recording stored in the hard disk drive to the external storage medium (S42). Subsequently, the controller 18 displays a list of recordings stored in the external storage medium when a copy command stored in the external storage medium from the operation unit is input to the hard disk drive (S43). Thereafter, when the controller 18 receives the recording selection information to be copied from the operation unit (S44), the controller 18 determines whether a recording having the same identification information as the identification information of the selected recording object exists in the hard disk drive (S45).

If there is a recording having the same identification information as a result of the determination, the controller 18 receives information on whether to overwrite, resume, or cancel the recording data of the selected recording on the hard disk drive (S46, S47). . After that, when the overwrite or resume information is input, the controller 18 checks whether there is a storage space to which the selected recording object is copied (S48). Thereafter, if there is a storage space, the controller 18 generates copy information including identification information of the selected recording object, target storage medium information storing the recording data, and overwriting or resuming information (S49).

On the other hand, when there is no recording having the same identification information, the controller 18 checks whether there is a storage space for copying the selected recording, and if the storage space exists, a target storage medium in which the identification information and the recording data of the selected recording are stored. The copy information including the information is generated (S48 and S49).

Here, if there is no free space, the controller 18 outputs a warning message and then displays a list of recordings to receive another recording from the operator.

Thereafter, the controller 18 registers the generated recording copy information in the copy reservation list (S50). Then, check whether the copy command has been entered, and as a result, if the copy command has not been entered, information on whether to copy the recordings stored on the external storage medium to the hard disk drive or the recordings stored on the hard disk drive to the external storage medium is provided. When receiving a copy command, the recording data is copied according to the recording copy information registered in the copy reservation list (S51).

Thereafter, the controller 18 checks the copy completion, copies the identification information and the additional information of the copied recording when the copy completion signal is input, and deletes the copy information of the recording from the copy reservation management list (S52, S53). Thereafter, the controller 18 checks whether the copy reservation list is empty, and if there is pending copy information, performs copying of the recorded data according to the recorded copy information registered in the list (S54), and terminates when there is no pending copy information. .

2B illustrates a process of copying recordings stored in a personal video recorder to an external storage medium.

Referring to FIG. 2B, the controller 18 displays a list of recordings stored in the hard disk drive when a copy command stored in the hard disk drive is input from the operator to an external storage medium (S61), and selects recordings to copy. Information is input (S62).

Thereafter, the controller 18 determines whether a recording having the same identification information as the identification information of the selected recording object exists in the external storage medium (S64). Information on whether to overwrite the external storage medium (S65), or to take over or cancel is received (S66). After that, when the overwrite or resume information is input, the controller 18 checks whether there is a storage space to which the selected recording object is copied (S48). As a result, when the storage space exists, the controller 18 generates copy information including identification information of the selected recording material, target storage medium information where the recording data is stored, and overwrite or resume information (S68).

On the other hand, the controller 18 checks whether there is a storage space for copying the selected recording if there is no recording having the same identification information, and if there is a storage space, the identification information of the selected recording and the target storage medium information where the recording data is stored. Generate copy information including a (S68). Here, if there is no free space, the controller 18 outputs a warning message and then displays a list of recordings to receive another recording from the operator.

Thereafter, the controller 18 registers the generated recording copy information in the copy reservation list (S69) and repeats the steps (steps 42 to 54) shown in FIG. 2A.

According to a characteristic aspect of the present invention, the control unit 18 receives a divisional copy command (S63) and accordingly enables divisional copying of the selected recording.

Hereinafter, a split copy process performed in the personal video recorder according to the present invention will be described with reference to FIGS. 2C and 2D.

2C and 2D illustrate a process of dividing and copying recordings stored in a personal video recorder to a plurality of external storage media.

Referring to FIG. 2C, a personal video recorder according to an embodiment of the present invention copies recordings to a plurality of external storage media having the same storage space.

When the divided copy command is input to the selected recording material, the controller 18 checks whether the copy command is performed to an external storage medium having the same storage space or to an external storage medium having an arbitrary storage space (S70). As a result, when a copy command is input to an external storage medium having the same storage space, the storage space of the connected external storage medium is checked (S71), and the size of the selected recording medium is divided based on the storage space information of the checked external storage medium (S72). ).

 Thereafter, the controller 18 displays a separate recording list (S73), receives a selection signal of a separate recording to copy from the separated recording list (S74), and includes target storage medium information and copy range information in which the recording data is stored. Create copy information (S75) and register it in the copy reservation list (S76). Thereafter, the controller 18 copies the recorded data according to the recording copy information registered in the copy reservation list when the copy command is input (S77).

Thereafter, the control unit 18 confirms the copy completion (S78) and copies the identification information and the additional information of the copied recording when the copy completion signal is input to the external storage medium (S79). Delete the information (S80). Thereafter, the controller 18 checks whether another external storage medium has been exchanged (S81). As a result, if another external storage medium is replaced, the controller 18 copies the recorded data according to the separate recording copy information registered in the copy reservation list, and stores another external storage. If the medium is not exchanged, it is checked whether a system shutdown signal is input (S82).

After that, if the end signal is not input, the controller 18 performs step 42 of receiving information on whether to record the recording stored in the external storage medium to the hard disk (or vice versa). On the other hand, the control unit 18 terminates the system when the end signal is input.

Referring to FIG. 2D, a personal video recorder according to an embodiment of the present invention copies recordings to a plurality of external storage media having any storage space.

The controller 18 checks the storage space of the connected external storage medium when inputting a copy command to an external storage medium having a certain low capacity (S91), and copies the recording data including the recording identification information, the target storage medium information, and the copy range information. After generating the information (S92) it is registered in the copy reservation list (S93). Here, the copy range information includes a range up to the GOP portion smaller than the storage space of the external storage medium. Thereafter, the controller 18 copies the recorded data according to the recording copy information registered in the copy reservation list when the copy command is input (S94).

Thereafter, the controller 18 checks the copy completion (S95) and copies the identification information and the additional information of the copied recording material when the copy completion signal is input to the external storage medium (S96). Thereafter, the controller 18 checks whether another external storage medium has been exchanged (S97), and as a result, if another external storage medium has been exchanged, the control unit 18 copies the recorded data according to the separate recording copy information registered in the copy reservation list, and stores another external storage. If the medium is not exchanged, it is checked whether a system shutdown signal is input (S98).

After that, if the end signal is not input, the controller 18 performs step 42 of receiving information on whether to record the recording stored in the external storage medium to the hard disk (or vice versa). On the other hand, the control unit 18 terminates the system when the end signal is input.

As described above, the personal video recorder implementing the recording method according to the present invention is connected to various external storage media such as a 2.5-inch mobile HDD device, a USB memory, an external flash memory device, etc. through various input / output interfaces. Through the input / output interface, the recordings stored in the external storage medium can be copied to the built-in hard disk drive, or the recordings stored in the hard disk drive can be copied to the external storage medium. If you want to, or the storage capacity of the built-in hard disk drive is insufficient, there is a useful feature that can be stored in the external storage media.

In addition, the personal video recorder implementing the recording copying method according to the present invention can generate the GOP location information to form an image by combining the encoded MPEG recording stream into a predetermined number of image files, thereby allowing the user to generate a video. It is possible to quickly search for the desired part during playback, and it is convenient to manage the additional information of the recordings stored in the external storage media by storing the recordings in the GOP unit when storing the recordings in the external storage media.

In addition, the personal video recorder implementing the recording copy method according to the present invention, if a copy stop signal is input during copying of the recorded data, copy the copy to the GOP portion currently being copied, so that when the copied recording is played back, There is an effect to prevent the picture or sound that you do not have.

In addition, a personal video recorder implementing the recording copying method according to the present invention generates a user information or a personal video recorder by generating additional information including identification information of the recording and contents of the recording data, playback time, and recording date and time when the recording data is copied. When copying recordings from other personal video recorders, the effect is that each recording can be easily distinguished.

In addition, a personal video recorder implemented by the method of copying recordings according to the present invention divides the recordings into a plurality of external storage media, and copies them to a plurality of external storage media having the same storage space or a plurality of storage spaces having an arbitrary storage space. By dividing and copying to an external storage medium, the user can copy regardless of the size of the recording, and furthermore, the user can copy only the necessary portions of the recording when copying the recording to a plurality of external storage media having the same storage space. There is an advantage.

Although the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that many various obvious modifications are possible without departing from the scope of the invention from this description. Therefore, it should be interpreted by the claims described to include many such variations.

Claims (24)

delete An operation unit which receives a user operation command; At least one external storage medium interface unit for supporting communication with a connected external storage medium; An MPEG encoder for encoding input digital video and audio data; A hard disk drive (HDD) for storing the encoded recording data; An MPEG decoder for decoding the recorded data reproduced from the hard disk drive; A recording object generation unit generating additional information including recording object identification information and title / playback time / recording date and time of the recording material according to an operation signal of the operation unit; A recording list providing unit which reads and displays a list of recordings stored in the storage medium from the hard disk drive when inputting an operation command to copy (or vice versa) the recordings stored in the external storage medium from the operation unit to the personal video recorder; , Whether the recordings selected from the recording list can be copied to the hard disk drive or the external storage medium by checking whether there is a recording having the same identification information or whether there is free storage space on the storage medium, and displays the result. A copy information generation unit generating copy information including identification information of the selected recording material, target storage medium information storing recording data, and overwrite or resume information according to an operation signal of an operation unit;  A copy stop information generating unit for generating copy stop information of the recordings; Receives copy information of the recording from the copy information generation unit and registers it in the copy reservation management list, and when a copy completion signal is input or copy stop information is input from the copy stop information generation unit, the corresponding copy of the recording registered in the copy reservation list is copied. Copy reservation management unit for deleting information, According to the copy information input from the copy reservation management unit, the recorded data of the recordings registered in the copy reservation management list is read from the hard disk drive or an external storage medium and copied to the corresponding storage medium, and the copy is stopped when the copy stop signal is input. A copy performing unit for outputting a copy completion signal and modifying additional information of the copied recording to copy to a target storage medium when copying of the recording is completed; When it is confirmed that at least one external storage medium is connected, numbers are given in the order of connection and the external storage medium which reads free space, stored recording data list, identification information and additional information of the recording medium to the hard disk drive. A control unit including a connection processing unit; Personal video recorder comprising a. The method of claim 2, wherein the recording production unit: Personal video recorder, characterized in that to further generate the GOP location information to bundle the recording data into a predetermined number of image files to form a single moving picture. The personal video recorder according to claim 2 or 3, wherein the identification information of the recording includes a date / time, any random number, a delimiter, and a product unique number. The method of claim 2, wherein the copying unit checks whether the recording copy information includes overwriting or resuming information, and deletes the recording data having the same identification information recorded on the target storage medium when the overwriting information is included. And a file pointer of recorded data having the same identification information recorded on the source storage medium and the target storage medium when the following information is included. The recording unit according to claim 2 or 3, wherein the copying unit copies the recorded data in a GOP unit, and if a copy stop signal is input from the copy reservation management unit during copying the recorded data, the copying unit copies the recorded data up to the current GOP part, and the copy is stopped. Personal video recorder, characterized in that for generating new additional information to copy to the storage medium. The method of claim 2, wherein the external storage medium connection processing unit automatically generates additional information including at least the title of the recording, the recording date and time, and the playback time when there is no additional information on the recording stored in the external storage medium. Featured Personal Video Recorder. The method of claim 2, wherein the control unit: According to the copy control signal input from the copy reservation management unit, the recorded data of the recordings registered in the reservation management list is read from the hard disk drive and copied to the corresponding external storage medium, and the copy is stopped when the copy stop signal is input. When the copy of the recording is completed, and outputs a copy completion signal, and further comprises a split copy performing unit for copying the additional information of the copied recording to the target storage medium, The copy information generating unit further comprises splitting information in the copy information personal video recorder. The method of claim 8, wherein the divisional copying unit is divided into a plurality of external storage media having the same storage space to copy, The copy information generating unit further includes information on whether to copy to a plurality of external storage media having the same storage space in the copy information and the copy range information, characterized in that the personal video recorder. The method of claim 8, wherein the divided copying unit is divided into a plurality of external storage medium having a different storage space to copy, The copy information generating unit further comprises information on whether to copy to a plurality of external storage media having any storage space in the copy information and copy range information. 11. The method of any one of claims 8, 9 and 10, wherein the recording production unit: Personal video recorder, characterized in that to further generate the GOP location information to bundle the recording data into a predetermined number of image files to form a single moving picture. 10. The personal video recorder of claim 8, wherein the identification of the recording includes a date / time, any random number, a delimiter, and a product unique number. 12. The personal video recorder of claim 11, wherein the identification of the recording includes a date / time, any random number, a delimiter, and a product unique number. The method according to any one of claims 8, 9, 10, and 12, wherein the copying unit checks whether the recorded copy information includes overwrite or resume information, and includes the same information recorded on the target storage medium when the overwrite information is included. Delete recorded data with identification information And a file pointer of recorded data having the same identification information recorded on the source storage medium and the target storage medium when the following information is included. The method according to claim 8, 9, 10, 12, wherein the copying unit copies the recorded data in units of GOP, but if the copy stop signal is input from the copy reservation management unit during copying the recorded data, the copy performing unit copies the current GOP part. Personal video recorder, characterized in that for generating a new identification information and additional information for the recording is stopped copying to the storage medium. The apparatus of claim 8, 9, 10, or 12, wherein the external storage medium connection processing unit includes at least a title of the recording, a recording date and time, and a playback time when there is no additional information on the recording stored in the external storage medium. Personal video recorder, characterized in that for generating information automatically. 15. The method of claim 14, wherein the copying unit copies the recorded data in units of GOP, and if the copy stop signal is input from the copy reservation management unit during copying the recorded data, copy to the current GOP portion, new identification information and Personal video recorder, characterized in that for generating additional information to copy to the storage medium. 15. The method of claim 14, wherein the external storage medium connection processing unit automatically generates additional information including at least the title of the recording, recording date and time, and playback time when there is no additional information on the recording stored in the external storage medium. Featured Personal Video Recorder. The method of claim 15, wherein the external storage medium connection processing unit automatically generates additional information including at least the title of the recording and the recording date and time when there is no additional information on the recording stored in the external storage medium. Featured Personal Video Recorder. In the recording method of a hard disk drive-based personal video recorder connected to at least one external storage medium, the recording method is: Reading a list of recorded data, identification information, and additional information of a recorded recording from an external storage medium; Receiving information about whether to copy the recording stored in the external storage medium to the hard disk drive or the recording stored in the hard disk drive to the external storage medium; Displaying a list of recordings stored in the external storage medium when a copy command stored in the external storage medium is input to the hard disk drive; Receiving recording selection information to be copied; Determining whether a recording having the same identification as the identification information of the selected recording exists in the hard disk drive; Receiving information on whether to overwrite or resume the recording data of the selected recording data if the recordings having the same identification information exist as a result of the determination; Checking whether there is a free storage space in the hard disk drive to store the selected recording; If the free space does not exist, a warning message is output and a list of recorded data is displayed. If the free space exists, the identification information of the selected recording, the target storage medium information where the recording data is stored, and information on overwriting or overwriting are included. Generating copy information; Registering the generated recording copy information in a copy reservation list; Checking whether a copy command has been input; If the copy command is not inputted as a result of the check, perform the step of receiving information on whether to copy the recordings stored in the external storage medium to the hard disk drive or the recordings stored in the hard disk drive to the external storage medium. Performing copying of the recording data according to the recording copy information registered in the copy reservation list upon input; Copying the identification information and the additional information of the copied recording when the copy completion signal is input and deleting the copy information of the recording from the copy reservation list; Checking whether the copy reservation list is empty and if there is pending copy information, performing copying of the recorded data according to the recorded copy information registered in the list; Recording method for copying recordings comprising a. 21. The method of claim 20, wherein said recording copy method is: Displaying a list of recordings stored in the hard disk drive when a copy command stored in the hard disk drive is input to an external storage medium; Receiving recording selection information to be copied; Determining whether there is a recording on the external storage medium having the same identification information as the identification information of the selected recording object; Receiving information on whether to overwrite, resume, or cancel the recording data of the selected recording if the recordings having the same identification information exist as a result of the determination; Checking whether there is a free storage space for storing the selected recording on an external storage medium; Outputting a warning message if the free space does not exist and displaying a list of the recorded data, and if the free space exists, generating copy information on the selected recorded data; Registering the generated recording copy information in the copy reservation list; Recording method for copying the recordings further comprising. The method of claim 21, wherein the recording method of copying is: Checking whether a split copy command is input for the selected recording; Checking whether a copy command to an external storage medium having the same storage capacity or a copy command to an external storage medium having an arbitrary low capacity when inputting a split copy command for the selected recording material; Checking the storage space of the connected external storage medium when a copy command is input to the external storage medium having the same storage capacity as a result of the checking; Dividing the size of the selected recording material by the storage space information of the identified external storage medium and displaying the separated recording material list; Receiving a separate recording selection signal to copy from the separated recording list, generating copy information including target storage medium information and copy range information in which recording data is stored, and registering the copy recording information in a copy reservation list; Copying recording data according to recording copy information registered in the copy reservation list when a copy command is input; Changing the identification information and additional information of the separated recording material copied when the copy completion signal is input, copying it to an external storage medium, and deleting the copy information of the separation recording from the copy reservation list; Check if the other external storage media is replaced, and if it is confirmed that the other external storage media has been replaced, copy the recording data according to the recording copy information registered in the copy schedule list. Checking whether an end signal is input; Recording method for copying the recordings further comprising. The method of claim 22, wherein said recording copy method is: Identifying a storage space of the connected external storage medium upon inputting a split copy command to an external storage medium having an arbitrary low capacity; Generating copy information including selected recording object identification information, target storage medium information, and copy range information, and registering the copy information in a copy reservation list; Copying recording data according to recording copy information registered in the copy reservation list when a copy command is input; Copying the identification information and the additional information of the copied recording to an external storage medium when the copy completion signal is input; Check if the other external storage media is replaced, and if it is confirmed that the other external storage media has been replaced, copy the recording data according to the recording copy information registered in the copy schedule list. Checking whether an end signal is input; Recording method for copying the recordings further comprising. 24. The method of any one of claims 20, 21, 22, 23, wherein the step of reading the list of recorded data, identification information and additional information of the recording stored in the external storage medium comprises: And if there is no additional information of the recording, automatically generating and reading additional information including at least the title of the recording, the recording date and time, and the playing time.

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