KR100395532B1 - Combination system capable of converting the format of signal to be copied and copying method performed thereby - Google Patents

Abstract

A combination system for converting a video signal recorded on an optical disc into a signal system of a received broadcast signal and recording the same on a video tape is disclosed. The combination system includes a DVD unit for outputting a reproduction signal of image data recorded on an optical disc, a VSI unit for reproducing an image recorded on a video tape, and a recording operation for recording an image on a video tape, and a broadcast signal of airwaves. A receiving unit for receiving a signal, a determination unit for determining a signal type of a received broadcast signal, a converter for converting a playback signal output from the DVD unit, and a converted signal for transmission to the VSI unit And a control unit for recording the additionally converted reproduction signal on the video tape. The user inputs a command to record the image data recorded on the optical disc on the video tape. The control unit outputs a command to convert the video signal reproduced from the optical disk into a signal system of the received broadcast signal and to record the video signal on the video tape. Therefore, there is no need to convert the playback signal or change the output device during playback of the videotape. In addition, the present invention can be applied to a case where a signal recorded on one recording medium is copied to another recording medium in a combination system in which two or more devices are combined.

Description

Combination system capable of converting the format of signal to be copied and copying method performed hence}

The present invention relates to a combination system capable of converting a signal to be copied and a signal copying method thereof, and more particularly to a reproducing apparatus for reproducing a signal recorded on one recording medium and a signal reproduced by the reproducing apparatus on another recording medium. The present invention relates to a combination system capable of converting a signal to be copied in a combination system having a recording device for recording a signal, and a signal copying method of the combination system.

In general, 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'. An example of a combo system is a DVDP / VCR combo system developed to perform a combination of a DVDP function and a VCR function.

FIG. 1 is a diagram schematically illustrating such a DVDP / VCR combo system and peripheral devices connected thereto. The DVDP / VCR combo system 10 includes a VCR unit 11 which performs a function of a general VCR such as a function of reproducing images and sounds recorded on magnetic tape and a function of recording an externally received signal on magnetic tape, And a DVDP unit 12 which performs a function of a general DVDP (DVD player) such as a function of reproducing video and sound recorded on a digital video disk (DVD). In addition to the independent functions of the VCR unit 11 and the DVDP unit 12, the DVDP / VCR combo system 10 records the images and sounds reproduced by the DVDP unit 12 on the magnetic tape in the VCR unit 11; It has the advantage of being able to perform the same complex function.

The DVDP / VCR combo system 10 is connected with a TV 23 as a peripheral device for outputting video and sound reproduced by the DVDP unit 12 or the VCR unit 11 therein, and the DVDP 12 includes: An audio amplifier 21 is connected as a peripheral device for outputting reproduced sound. In addition, an external device 25 such as a camcorder may be connected to the DVDP / VCR combo system 10, and the DVDP / VCR combo system 10 receives an image and a sound from the external device 25 to record / reproduce. Do this.

The VCR unit 11 and the DVDP unit 12 in the DVDP / VCR combo system 10 are externally present as one system, and the user may use a separate input device such as a remote controller 15 or a DVDP / VCR combo system ( By operating an operation panel (not shown) and the like provided on the front of 10), mode switching between the VCR unit 11 and the DVDP unit 12 and individual functions of the devices 11 and 12 can be operated.

The combo system 10 may record image data recorded on an optical disc on a video tape. However, in this case, the combo system 10 may record only the same method according to a recording method of image data recorded on an optical disc. Therefore, when playing the video tape recording the playback signal output from the DVDR unit 12, if the signal method of the video recorded on the videotape is different from the broadcasting method of the region where the combo system 10 is located, the TV is videotape. It is inconvenient to change the signal method of the video recorded in the video signal or to convert the playback signal of the VCR to the signal method of the TV.

The technical problem to be achieved by the present invention is a combination system that does not require a change in the output device or conversion of the signal system during reproduction of another recording medium copied from a reproduction device for reproducing a signal recorded on one recording medium; The present invention provides a signal recording method of a combination system.

1 is a view schematically illustrating a conventional DVDP / VCR combo system and peripheral devices connected thereto;

2 is a block diagram showing an internal configuration of a DVDP / VCR combo system according to the present invention;

3 is a block diagram showing an internal configuration of another embodiment of a DVDP / VCR combo system according to the present invention;

4 is a flowchart illustrating a process of recording video data of an optical disc on a video tape in the DVDP / VCR combo system according to the present invention;

5 is a block diagram illustrating a configuration of a signal conversion apparatus in which a determination unit, a detection unit, a conversion unit, a control unit, and a storage unit are integrated into one module.

In order to solve the above technical problem, the combination system according to the present invention, the receiving unit for receiving a broadcast signal; A determination unit which determines a signaling method of the broadcast signal received by the reception unit; And a converting unit converting a reproduction signal output from the reproduction apparatus into a signal system of the broadcast signal and providing the same to the recording apparatus.

Preferably, the detection unit for detecting the signal method of the signal recorded on the recording medium; And a control unit which controls the conversion unit to convert the signal method of the reproduction signal into the signal method of the broadcast signal when the signal method of the signal recorded on the one recording medium detected by the detector differs from the signal method of the broadcast signal. It further includes.

On the other hand, the video signal recording method according to the present invention comprises the steps of determining the signal system of the received broadcast signal; Converting a reproduction signal of a signal recorded on one recording medium into a signal system of the received broadcast signal; And recording the converted reproduction signal on another recording medium.

Preferably, before the conversion step, detecting the signal method of the signal recorded on the one recording medium; And comparing the signal method of the signal recorded on the one recording medium detected in the detecting step with the signal method of the received broadcast signal determined in the determining step, wherein the converting step comprises the one recording medium. If the signal method of the signal recorded in < RTI ID = 0.0 > and < / RTI >

In accordance with the signal system of the broadcast signal in which the combination system (hereinafter referred to as a combo system) according to the present invention by converting the reproduction signal of the signal recorded on one recording medium and copied to another recording medium, When the signal is reproduced, there is no need for a conversion of a signal system or a change of an output device.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

2 is a block diagram illustrating an internal configuration of a combo system, in particular, a DVDP / VCR combo system 100 capable of performing the functions of a DVDP and a VCR.

The DVDP / VCR combo system 100 is output from a VCR unit 110 performing a function of a general VCR, a DVDP unit 120 performing a function of a general DVDP, a VCR unit 110 and a DVDP unit 120. From the input unit 140, the VCR unit 110 and the DVDP unit 120 for providing a signal input from an external device such as a selection unit 130, a camcorder, etc. to perform a selection operation for the signals to the selection unit 130 OSD 150 that adds an on-screen display (OSD) function to an output unit 150 for providing output signals to peripheral devices such as a TV or an amplifier, and an image signal output from the VCR unit 110 and the DVDP unit 120. Block 160 and the like.

The VCR unit 110 includes a VCR deck 111 for recording a signal on a magnetic tape or reproducing a signal recorded on a magnetic tape, and a video block for transmitting and receiving video and audio signals to be recorded or reproduced on the VCR deck 111. And 112, an audio block 113, a VCR deck 111, a VCR microcomputer 114 for controlling the overall operation of the video block 112 and the audio block 113, and the like. In addition, the VCR unit 110 may include a display 116 for displaying the operation, the state such as control and mode, etc. to the outside so that the user can know, an operation panel 117 for receiving various commands from the user, and a remote controller ( 165 is provided with a remote control sensor 118 for receiving a variety of commands from the user.

The DVDP unit 120 includes a DVD deck 121, a DVD servo 122, a DVD microcom unit 123, an MPEG decoder 124, and the like. The DVD deck 121 reads data recorded on the DVD in order to perform a playback operation on the DVD, and the DVD servo 122 performs position control and speed control of the DVD deck 121. The MPEG decoder 124 receives the data read by the DVD deck 121 through the DVD microcomputer 123 and outputs DVD image data and DVD sound data. The DVD microcomputer 123 controls the overall operation of the DVD deck 121, the DVD servo 122, and the MPEG decoder 124.

In FIG. 2, an embodiment in which means for inputting data by a user such as a remote control sensor 118 and an operation panel 117 is present only in the VCR unit 110 is illustrated. Accordingly, the user inputs data related to the DVDP. In this case, this data is transmitted to the DVD microcomputer 123 by the VCR microcomputer 114. In addition, the DVD microcomputer 123 and the VCR microcomputer 114 have a function of mutually transmitting data so that the DVD unit 120 and the VCR unit 110 share the data input by the user.

The selector 130 receives the output of the MPEG decoder 124, the output of the video block 112 and the audio block 113, the signal from the input unit 140, and the like. The selector 130 controls the input signal controlled by the VCR microcomputer 114 and the DVD microcomputer 123, and the selector 130 is a user such as DVD playback, video tape playback, and recording. Outputs the input signal to the OSD block 160 and the output unit 150 in accordance with the request of.

The OSD block 160 adds an OSD function to the signal input from the selector 130. Accordingly, an image to be added to an image output on the TV screen, such as a menu for controlling the operation of the DVDP unit 120 and the VCR unit 110 and a menu for setting an environment, is made by the OSD block 160.

The output unit 150 receives signals from the MPEG decoder 124, the selector 130, and the OSD block 160, and outputs signals related to the DVD image, the DVD sound, the VCR image, and the VCR sound. The output unit 150 is connected to a peripheral device such as a TV or a sound device, so that the image and sound is output from the peripheral device.

The input unit 140 is connected to the controller 130 and functions to transmit a signal input from the outside to the selector 130. The signal output terminal of an external device such as a camcorder is connected to the input unit 140. Therefore, the signal recorded in the external device can be transmitted to the combo system 100 through the input unit 140, and can also be recorded on the magnetic tape using the VCR unit 110 or reproduced through the TV.

In addition, the combo system 100 has a tuner unit 170 for receiving a broadcast signal of airwaves from an antenna or a TV and outputting a video signal transmitted through a specific channel. The DVD microcomputer 123 or the VCR microcomputer 114 includes a determination unit 175 that determines a signal system of the broadcast signal received through the tuner unit 170, and a signal system of video data recorded on the optical disk. The detector 180 and a controller 190 for controlling the operation of the components. The combo system 100 includes a conversion unit 185 for converting a reproduction signal input from the DVD unit 120 into a signal method determined by the determination unit 175.

The tuner unit 170 has a radio wave receiving means such as an antenna included in the combo system 100 and a tuning unit for extracting a signal of a specific channel from the broadcast signal received through the radio wave receiving means. The broadcast signal received through the tuner unit 170 is input to the selector 130, and the selector 130 outputs the received broadcast signal to a TV, an audio device, or the like according to a user's selection. In addition, when the combo system 100 performs an operation of recording the video data of the optical disc with a video tape, the selector 130 outputs the input broadcast signal to the determination unit 175.

The determination unit 175 determines the signal system of the received broadcast signal based on the vertical synchronization frequency and the color carrier frequency of the broadcast signal received from the tuner unit 170. If the vertical synchronization frequency is 60Hz, it is determined by NTSC method or PAL-M method. If it is 50Hz, it is determined by PAL method except SECAM method and PAL-M method.

In this case, different signaling methods having the same vertical synchronization frequency may be distinguished by color carrier frequencies. For example, in the case of NTSC and PAL-M systems having a vertical synchronization frequency of 60 Hz, the NTSC method has a color carrier frequency of 3.579 Hz, whereas the PAL-M method has 3.576 Hz. In the NTSC system, the NTSC-M system with color carrier frequency of 3.579 MHz and the NTSC-N system with 4.43 MHz are distinguished.

On the other hand, since the difference between the color carrier frequency of the NTSC and PAL-M methods is not large, the NTSC method or the PAL-M method should be set as the reference signal method to determine the correct signal method. When the resulting color killer signal is detected, it may be determined by a signal method different from the reference signal method.

The detector 180 detects a signal system of image data recorded on the optical disk. On the optical disc, a signal system for each image data is recorded. That is, the signal method can be determined by detecting the area code assigned to each video data. Table 1 shows an example of each region's signaling method and region code.

Area code Signaling method area One NTSC-M Korea, USA, Japan, etc. 2 PAL-M Commonwealth of Independent States, Eastern Europe, etc. 3 PAL-B, I, N Germany, Italy, Western Europe, etc. 4 SECAM France, Luxembourg, etc.

Preferably, each region signaling method and region code as described in [Table 1] are prepared in the form of a lookup table and stored in the storage unit 195 of the combo system. In this case, the detection unit 180 detects a region code recorded on the optical disc, and then detects a corresponding signal method by comparing the region code described in the lookup table stored in the storage unit 195.

The converting unit 185 converts the playback signal output from the video encoder (not shown) according to the MPEG decoder 124 or the circuit configuration into the signal system of the broadcast signal determined by the determining unit 175. In this case, the conversion of the signal system in the conversion unit 185 is preferably performed only when the signal system of the broadcast signal and the signal system of the image data recorded on the optical disc are different.

For example, when the signal method of the broadcast signal is the PAL-M method, if the signal method of the image data recorded on the optical disc is the PAL-M method, the playback signal is input to the VCR unit 110 without the conversion of the signal method. And recorded on the videotape. However, if it is detected that the signal method of the image data recorded on the optical disc is NTSC-M method, the playback signal is converted into PAL-M method by the conversion unit 185 and then input to the VCR unit 110 and recorded on the video tape.

The controller 190 controls the operations of the determination unit 175, the detection unit 180, and the conversion unit 185 when the combo system 100 performs the operation of recording the image data recorded on the optical disc on the video tape. . In particular, the control unit 190 is the MPEG decoder 124 only when the signal method of the broadcast signal determined by the determination unit 175 and the signal method of the image data recorded on the optical disk detected by the detection unit 180 is different. Or control the signal system of the reproduction signal outputted from the video encoder (not shown in the figure) according to the circuit configuration.

The controller 190 is preferably the main microcomputer of the combo system 100. The main microcomputer of the combo system 100 may be one of the microcomputers provided in the DVD microcom unit 123 and the microcomputers provided in the VCR microcomb unit 114, and one micom is the DVD microcom unit 123. ) And the VCR microcomputer unit 114.

The VCR unit 110 records the video signal received from the selector 130 on the video tape, wherein the video signal of the same signal system as that of the broadcast signal received through the tuner unit 170 is recorded on the video tape. do.

The above process of recording the image data of the optical disc on the video tape is a combo system when the image data of the optical disc loaded on the DVD deck 121 is recorded on the video tape inserted in the VCR unit 110 in the combo system 100. For the operation of 100. However, even when the image data recorded on the optical disc is reproduced and output through the output unit 150, it is also applied when the reproduction signal is converted and output according to the signal method of the broadcast signal received through the tuner unit as described above. Can be.

On the other hand, it is preferable that the user can specify the signal method of the video signal recorded on the video tape through the operation panel 117 or the remote control 165. In this case, the signal method input by the user through the operation panel 117 or the remote controller 165 is transmitted to the control unit 190 through the VCR microcomputer unit 114. The control unit converts the playback signal output from the video encoder (not shown) according to the MPEG decoder 124 or the circuit configuration according to the received signal system regardless of the signal system of the received broadcast signal. 185).

3 is a block diagram showing an internal configuration of another embodiment of the combo system 100 according to the present invention.

Referring to FIG. 3, the determination unit 175, the detection unit 180, the conversion unit 185, the control unit 190, and the storage unit 195 are provided separately from the DVD micom unit 123. Basic operations of the determination unit 175, the detector 180, and the converter 185 of the combo system illustrated in FIG. 3 are the same as those described with reference to FIG. 2.

The determination unit 175 receives the broadcast signal received by the tuner unit 170 from the selection unit 130 and determines the signal system of the broadcast signal. The detection unit 180 receives the region code recorded on the optical disc from the DVD microcom unit 123 through the control unit 190 and detects a signal method of the image data. The converter 185 converts the DVD video signal received from the MPEG decoder 124 according to a control command of the controller 190. The converted DVD video signal is input to the VCR unit 110 and recorded on the video tape.

The control unit 190 receives a command to record the video data recorded on the optical disc on the video tape from the DVD microcom unit 123 or the VCR microcom unit 124, the determination unit 175, the detection unit 180 and the conversion unit. 185 controls to perform an operation related to the conversion of the signaling method. In addition, when the signal method of the image data detected by the detector 180 and the signal method of the broadcast signal determined by the determination unit 175 are different, the controller 190 broadcasts the DVD image signal received by the converter 185. Sends a control command to convert the signal to a signal type.

4 is a flowchart illustrating a process of recording image data of an optical disc on a video tape in the combo system 100 according to the present invention.

Referring to FIG. 4, when a user receives a command for recording video data recorded on an optical disc into a video tape through the operation panel 117 or the remote control sensor 118, the VCR microcomputer unit 110 receives a DVD microcomputer unit ( 120 and the command received by the selection unit 130 is transmitted (S400).

When receiving a command to record the image data recorded on the optical disc with a video tape, the selector 130 transmits the broadcast signal received through the tuner unit 170 to the determination unit 175. The determination unit 175 determines the signaling method of the broadcast signal received from the selection unit 130 based on the vertical synchronization frequency and the color carrier frequency (S410).

On the other hand, the detection unit 180 detects the signal method of the image data by reading the area code recorded on the optical disk (S420). Since the operation of the detector 180 has already been described, a detailed description thereof will be omitted.

The controller 190 compares the signal method of the received broadcast signal with the signal method of the detected image data (S430), and if it does not coincide with each other, the controller 190 receives the signal method of the playback signal of the image data by the converter 185. A command for converting a broadcast signal into a signal method is transmitted.

The converter 185 converts the playback signal of the image data according to the control command of the controller 190 (S440). The converted reproduction signal is input to the selector 130. The selector 130 transmits the converted playback signal to the VCR unit 110, and the VCR unit 110 records the received playback signal on a video tape (S450). On the other hand, when the signal method of the video data and the signal method of the broadcast signal are the same in step S430, the playback signal is recorded on the video tape without conversion of the signal method.

The determiner 175, the detector 180, the converter 185, the controller 190, and the storage 195 may be manufactured as one module. FIG. 5 is a block diagram illustrating a configuration of the signal conversion apparatus 200 in which the determination unit 175, the detection unit 180, the conversion unit 185, the control unit 190, and the storage unit 195 are integrated into one module. to be.

The signal conversion device 200 includes a connection unit 210 for transmitting and receiving a signal with a playback device and a recording device. One terminal 215 of the connection unit 210 is connected to a reproducing apparatus for reproducing a signal recorded on one recording medium, and a signal reproduced by the reproducing apparatus is input. The other terminal 220 of the connection unit 210 is connected to another recording medium is connected to a recording device for recording the playback signal by the playback device, the signal reproduced by the playback device converted in the signal conversion device 200 is output. It is preferable that the signal conversion device 200 includes a receiver 170 in itself. Operation of each component of the signal conversion apparatus 200 is similar to that described with reference to FIGS. 2 and 3, and thus a detailed description thereof will be omitted.

In the embodiments described with reference to FIGS. 2 and 3, the control unit 190, the DVD microcom unit 123, and the VCR microcom unit 114 may be integrated into one unit so that each function may be performed in one microcomputer. In addition, the technical idea disclosed through the above embodiments can be applied to various combo systems. That is, in the combo system, when one device performs a playback operation and another device performs a recording operation, the technical idea of converting and recording a signal may be applied.

According to the present invention, the video signal is recorded in the same signal system as that of the broadcast signal received in the area where the combo system is located on the video tape, regardless of the signal system of the image data recorded on the optical disc. Therefore, when the video recorded on the videotape is played back, a playback signal suitable for the signal system of the broadcast signal in the area where the combo system is located is output, so that no separate signal conversion or change of the output system is required.

Although the present invention has been described in detail through the representative embodiments, those skilled in the art to which the present invention pertains can make various modifications without departing from the scope of the present invention with respect to the embodiments described above. Will understand. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

Claims (12)

A combination system comprising: a reproducing apparatus for reproducing a signal recorded on one recording medium; and a recording apparatus for reproducing a signal reproduced by the reproducing apparatus on another recording medium; Receiving unit for receiving a broadcast signal; A determination unit which determines a signaling method of the broadcast signal received by the reception unit; And And a converting unit converting a reproduction signal output from the reproduction apparatus into a signal system of the broadcast signal and providing the same to the recording apparatus. The method of claim 1, And the determination unit determines a signaling method of the broadcast signal based on the vertical synchronization frequency and / or the color carrier frequency of the broadcast signal. The method according to claim 1 or 2, A detector for detecting a signal method of a signal recorded on the one recording medium; And A control unit which controls the conversion unit to convert the signal method of the reproduction signal into the signal method of the broadcast signal when the signal method of the signal recorded on the one recording medium detected by the detector differs from the signal method of the broadcast signal. Combination system, characterized in that it further comprises. The method of claim 3, And the detection unit detects a signal method of the signal based on a region code included in the signal recorded on the one recording medium. A signal recording method of a combination system, comprising: a playback device for reproducing a signal recorded on one recording medium; and a recording device for recording a signal reproduced by the playback device on another recording medium. Determining a signaling method of the received broadcast signal; Converting a reproduction signal of a signal recorded on one recording medium into a signal system of the received broadcast signal; And And recording the converted reproduction signal on another recording medium. The method of claim 5, wherein the determining step, And determining a signaling method of the received broadcast signal based on the vertical synchronization frequency and / or the color carrier frequency of the broadcast signal. The method of claim 5 or 6, wherein before the conversion step, Detecting a signaling method of the signal recorded on the recording medium; And Comparing the signal method of the signal recorded on the recording medium detected in the detection step with the signal method of the received broadcast signal determined in the determination step, In the converting step, when the signal method of the signal recorded on the recording medium is different from the signal method of the broadcast signal, the playback signal is converted into the signal method of the broadcast signal. How to record. The method of claim 7, wherein And the detecting step detects a signal method of the signal based on a region code included in the signal recorded on the one recording medium. A signal conversion device for receiving a signal reproduced by the reproduction device from a reproduction device for reproducing a signal recorded on one recording medium and outputting the signal reproduced by the reproduction device to a recording device for recording the reproduced signal, Receiving unit for receiving a broadcast signal; A determination unit which determines a signaling method of the broadcast signal received by the reception unit; And And a converter for converting a playback signal output from the playback device into a signal system of the broadcast signal and providing the same to the recording device. The method of claim 9, And the determination unit determines a signal system of the broadcast signal based on the vertical synchronization frequency and / or the color carrier frequency of the broadcast signal. The method of claim 9 or 10, A detector for detecting a signal method of a signal recorded on the one recording medium; And A control unit which controls the conversion unit to convert the signal method of the reproduction signal into the signal method of the broadcast signal when the signal method of the signal recorded on the one recording medium detected by the detector differs from the signal method of the broadcast signal. Signal conversion apparatus further comprising. The method of claim 11, And the detector detects a signal method of the signal based on a region code included in the signal recorded on the recording medium.