JP2005333303A - Editing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording and reproducing device capable of solving a problem in which an error occurs in response to the number of programs to be dubbed when a plurality of programs recorded on magnetic tape media are all dubbed at an optimum bit rate without any shift in program start point. <P>SOLUTION: When a user performs a dubbing operation, a magnetic tape is forwarded fast to the end before the dubbing operation is actually started and then acquires the time and number of programs recorded on the magnetic tape while the tape is rewound thereafter to the beginning. According to the number of programs, a time of recording to a digital recording medium is corrected, the bit rate is so adjusted to match the free space of the digital recording medium, and the dubbing is started. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is a multifunction device having an analog playback function for playing back analog video / audio information recorded on a magnetic tape such as a video tape, and a digital recording function for recording digital video / audio information on a digital recording medium such as a DVD. In particular, the present invention relates to an editing apparatus effective for use in a video / audio recording / reproducing apparatus configured so that the content of a video tape can be dubbed to a DVD.

  For example, for recording video and audio information such as movies, a conventionally known analog recording magnetic tape (video tape) or digitally becoming popular with the recent development of compression coding technology Recording DVDs are used. A device that records / reproduces information by driving a magnetic tape includes a VCP (video cassette player), and a device that records / reproduces information by driving an optical disk includes a DVD recorder 2.

  By the way, recently, a multifunction device in which the VCP and the DVD recorder as described above are integrated has been proposed. Such a multi-function device has a function capable of dubbing information recorded on a magnetic tape onto a DVD. There is also an increasing market need for effectively using storage space by transferring the contents of magnetic tape to DVD.

    As a conventional technology of this type of multifunction peripheral, for example, a video / audio recording system disclosed in Japanese Patent Laid-Open No. 2001-16540 is known.

  In this video / audio recording system, when dubbing information on a magnetic tape to a DVD, when reproducing the video / audio information on the magnetic tape, if the reproducing unit of the magnetic tape detects an index signal such as a VISS signal stored on the magnetic tape, An index detection notification indicating this is transmitted to the digital recording unit, and upon receiving the index detection notification, the digital recording unit is configured to divide the video / audio information.

  However, this video / audio recording system has a problem in dividing video / audio information using a VISS signal as an index signal during dubbing. An example of this will be described below with reference to FIGS.

  FIG. 4 shows the VISS signal detection start point and the VISS which are dubbing source program division points when it takes time to determine the detection like the VISS signal when dividing the audio / video information in this audio / video recording system. FIG. 6 is a schematic diagram showing a state in which a program start point recorded on a digital recording medium and an actual program start point differ when a VISS signal determination point for determining signal detection differs. In FIG. 4, M11 is a dubbing source magnetic tape, V11 is a VISS signal detection start point written on the magnetic tape M12 as a start point of the program B, and V12 is a VISS signal detection start point by the video / audio recording system. VISS signal determination point for determining that the VISS signal has been detected after detecting V11, and T1 is a VISS signal detection determination section from when the video / audio recording system detects the VISS signal until the VISS signal is detected. And corresponds to a section from the VISS signal detection start point V11 to the VISS signal determination point V12. M12 is a digital recording medium that is a dubbing destination, and D11 is a program dividing point of program A and program B that can be created after dubbing.

  At the time of dubbing, when the video / audio recording system detects the VISS signal written on the magnetic tape M11 during reproduction of the magnetic tape M11 at the VISS recording start point V11, the VISS signal is detected during the VISS signal detection determination section T1 (for example, 1 second). To continue the reproduction of the magnetic tape M11. Then, the reproduction of the magnetic tape M11 and the recording of the digital recording medium M12 are interrupted when the detection of the VISS signal is confirmed (VISS signal decision point V12). Thereafter, the reproduction of the magnetic tape M11 and the recording of the digital recording medium M12 are resumed, the program dividing point D11 is created, and the program B is dubbed. Therefore, the program that should originally be the program B on the digital recording medium M12 is recorded as the program A only for the VISS signal detection fixed section T1, and the program B is the portion that is originally recorded as the program B only for the VISS signal detection fixed section T1. It will be in a missing state.

  Next, FIG. 5 is a schematic diagram showing how the program recorded on the digital recording medium differs from the actual program start point when the actual program start point differs from the VISS signal recording start point. In FIG. 5, M21 is a dubbing source magnetic tape, P21 is an actual program B start point, V21 is a VISS signal detection / determination point for completing the detection and determination of the VISS signal. The VISS signal detection start point V11 and the VISS signal determination point V12 are the same, but there is actually a certain interval between the VISS signal detection start point and the determination point. T2 is a program start point VISS signal detection fixed point difference section which is a section from the actual program start point P21 to the VISS signal detection and determination point V21. M22 is a digital recording medium as a dubbing destination, and D21 is a program dividing point of program A and program B.

  When the actual program start point and the recording start point of the VISS signal are different, the dubbing video tape recording system does not pass the actual program B start point P21 of the magnetic tape M21 during reproduction of the magnetic tape M21. Since the VISS signal is not written at the actual program B start point P21 of M21, the VISS signal is detected by detecting and confirming the VISS signal written on the magnetic tape M21, and the reproduction is continued until the confirmation point. When the detection and determination are completed, the reproduction of the magnetic tape M21 and the recording of the digital recording medium M22 are interrupted at that time (VISS signal detection, determination point V21). Thereafter, the reproduction of the magnetic tape M11 and the recording of the digital recording medium M12 are resumed, a program division point D21 is created on the digital recording medium, and the program B is dubbed. Therefore, the program that is supposed to be the program B on the digital recording medium M22 is recorded as the program A only for the VISS signal detection fixed point difference section T2 (for example, 1 second), and the program B is originally recorded as the program B in the VISS. The signal detection fixed point difference section T2 is missing.

  An example of a method known as means for solving this problem will be described below with reference to FIG.

  FIG. 6 is a schematic diagram showing a method for preventing the beginning of the program from being lost by dividing the program when dubbing is performed when the actual program start point and the point where the VISS signal detection is finished are different. FIG. In FIG. 6, M31 is a dubbing source magnetic tape, P31 is the actual program B start point, V31 is the VISS signal detection / determination point for completing the detection and determination of the VISS signal. The VISS signal detection start point V11 and the VISS signal determination point V12 are the same, but there is actually a certain section between the VISS signal recording start point and the determination point. M32 is a digital recording medium which is a dubbing destination, and D31 is a division point of program A and program B. T3 is a program start point VISS signal detection fixed point difference section which is a section from the actual program start point P31 to the VISS signal fixed point V31.

  Even when the recording start point of the VISS signal is different from the point where the detection of the VISS signal is determined, or when the VISS signal is not recorded at the actual starting point of the program, the head portion of the program B is the program starting point VISS signal detection determination point. Since the difference section difference section T3 minutes (for example, 2 seconds) is not lost, when reproduction is performed up to the VISS signal detection fixed point V31 of the magnetic tape M31 during dubbing, recording on the digital recording medium M32 and reproduction of the magnetic tape M31 are once performed. The magnetic tape M31 is rewound by the program start point VISS signal detection fixed point difference section difference section T3 so as to be interrupted and returned to the actual program start point P31. Thereafter, the program B on the magnetic tape M31 is reproduced, and dubbing is performed on the digital recording medium M32 as the program B to create a program division point D31. That is to say, by duplicating the program start point VISS signal detection fixed point difference section T3, the head portion of the program B is prevented from being lost. Therefore, according to this method, the digital recording medium M32 requires an extra capacity for the time recorded twice according to the number of programs recorded on the magnetic tape M31.

  On the other hand, as a means for dubbing from a magnetic tape to a digital recording medium such as a DVD, the editing is performed by measuring the recording time of the VCP and adjusting the bit rate so that it fits in one DVD as much as possible on the digital recording medium. There is a device.

  In this editing device, before dubbing the content of the magnetic tape to the DVD, the magnetic tape is fast-forwarded to the end, and then the number of playback control signals is acquired when the magnetic tape is rewound to the start. Calculate the recording time.

Then, the free space of the digital recording medium is acquired, and dubbing of video / audio information recorded on the magnetic tape medium to the digital recording medium is started at a bit rate adjusted to be within the free space.
JP 2001-16540 A

  However, this editing apparatus can acquire the recording time of the magnetic tape but cannot acquire the number of programs recorded on the magnetic tape. Therefore, it is not possible to calculate the extra recording time required due to the double recording on the digital recording medium when the program is divided. Therefore, there is a problem that it is impossible to accurately calculate an optimal bit rate and perform dubbing.

  The present invention solves the above-mentioned problems, and calculates the optimum bit rate of video / audio information recorded on an analog recording medium such as a magnetic tape with a simple operation by a user, and digital recording such as a DVD. An object of the present invention is to provide an editing apparatus capable of dubbing on a medium.

  In order to achieve the above-mentioned object, an invention according to claim 1 is an editing apparatus for editing a signal from a first recording medium made of a tape-like medium to a second recording medium, wherein the first recording medium From the first detection medium, the first detection means for detecting the recording time and the number of information recorded on the recording medium, the second detection means for detecting the recordable time in the second recording medium, and the first recording medium A reproducing means for reproducing a signal; and a recording means for recording a signal on the second recording medium, wherein the recording means is based on the detection results of the first and second detecting means. The signal processing is performed so that the signal reproduced in step 2 can be accommodated in the second recording medium. According to the second aspect of the present invention, the analog video / audio information recorded on the magnetic tape is reproduced, and the magnetic tape driving / reproducing unit for fast-forwarding and rewinding the magnetic tape is recorded and recorded on the digital recording medium. A digital recording medium access unit; an analog / digital conversion unit that converts the analog video / audio information read by the magnetic tape drive / playback unit into digital video / audio information and outputs the digital video / audio information to the digital recording medium access unit; User interface unit for user input such as keys, GUI screen input, and output to the user such as display tube and GUI screen display, storage unit for storing information, and control signal recorded on the magnetic tape Playback control signal that detects the playback control signal from the tape drive playback unit A magnetic tape drive unit that performs fast forward and rewind processing to the output unit, a start / end detection unit that detects the start and end of the magnetic tape from the magnetic tape drive / playback unit, A VISS signal detection for detecting a VISS signal recorded on the magnetic tape tape from the magnetic tape driving / reproducing unit; a magnetic tape reproducing unit for performing a reproducing process of the magnetic tape on the magnetic tape driving / reproducing unit; The analog / digital conversion unit converts the analog video / audio information from the magnetic tape drive / playback unit into digital video / audio information at an arbitrary bit rate and outputs the digital video / audio information to the digital recording medium access unit. Recording digital audio information on the digital recording medium, and the digital recording medium access unit A digital recording unit that performs processing for recording management information on the digital recording medium, and a digital recording medium free space acquisition unit that performs processing for acquiring the free space of the recording medium with respect to the digital recording medium access unit. When the dubbing operation is input from the user interface unit, the magnetic tape drive unit is used to fast-forward the magnetic tape, and if there is an end detection notification from the start / end detection unit, the magnetic tape drive unit At that time, the number of reproduction control signals recorded on the magnetic tape is obtained using the reproduction control signal detection unit, and recorded on the magnetic tape using the VISS signal detection unit. The number of VISS signals is obtained, and the magnetic tape recording time is calculated based on the number of VISS signals based on the playback control signal. The extra magnetic tape recording time is calculated from these values, and the total recording time of the video / audio information recorded on the digital recording medium from these values (here, the recording time is the digital recording medium). ), The contents are stored in the storage unit, the free space of the digital recording medium is acquired using the digital recording medium free space acquisition unit, and the digital recording medium recording time stored in the storage unit with respect to the free space The bit rate is adjusted so as to be within the range, and the dubbing is started by instructing the digital recording unit and the magnetic tape reproducing unit to simultaneously record on the digital recording medium and reproduce the magnetic tape at the adjusted bit rate. When the playback control signal detection unit notifies that there is no playback control signal, the recording is temporarily stopped to the digital recording unit, and when the playback control signal is notified again, recording is performed on the digital recording unit. If the VISS signal detection unit is notified that the VISS signal is detected, the magnetic tape playback unit is instructed to stop playback. After instructing the magnetic tape drive unit to rewind for a certain period of time, recording is interrupted to the digital recording unit, management information of the digital recording medium is written, and when these processes are completed, the magnetic tape playback unit is again played back. And a control unit that instructs the digital recording medium access unit to start recording video and audio information as a new program.

  In this configuration, when a dubbing operation is input from the user interface unit, first, the magnetic tape drive unit and the start / end detection unit are used to fast-forward to the end, and then the playback control signal is rewound to the start end. The reproduction control signal is acquired using the detection unit, the magnetic tape recording time is calculated based on the reproduction control signal, the number of VISS signals is acquired using the VISS signal detection unit, and the extra magnetic tape recording time is calculated based on the number. Further, the digital recording medium recording time is calculated from the value of the magnetic tape recording time and the extra magnetic tape recording time, and stored in the storage unit.

  Then, the free space of the digital recording medium is acquired from the digital recording medium free space acquisition unit, and recorded on the magnetic tape on the digital recording medium using the digital recording unit at a bit rate adjusted to fit in the free space. Analog video / audio information is converted into digital video / audio information and recording is started. If there is a non-detection notification of the playback control signal from the playback control signal detection unit of the magnetic tape during dubbing, that is, if a non-recorded part is being played back, recording on the digital recording medium is paused and playback control is performed. When there is a signal detection notification, that is, when the recorded portion of the magnetic tape is being played back, the recording is performed on the digital recording medium.

  If a VISS signal detection notification is received from the magnetic tape VISS signal detection unit during dubbing, playback is stopped, the magnetic tape is rewound for a certain time, recording is interrupted to the digital recording medium, and digital recording is performed. When the management information of the medium is written and these processes are completed, the magnetic tape is reproduced again, and the video / audio information is recorded on the digital recording medium as a new program.

  According to a third aspect of the present invention, in the editing apparatus according to the first aspect, the time at the lowest bit rate that can be recorded with respect to the free space of the digital recording medium is calculated from the magnetic tape recording time and the detected number of VISS signals. When the recording time is less than the total recording time of the digital recording medium plus the tape recording time, the user interface unit is used to display a warning to stop dubbing or request replacement of the digital recording medium, and do not perform dubbing. An editing device characterized by being able to do so is provided.

  According to a fourth aspect of the present invention, when a dubbing operation is input from the user interface unit in the editing apparatus according to the first aspect, the digital recording medium free space acquisition unit is first used to acquire the free space of the digital recording medium, When there is no capacity, for example, if the digital recording medium is a DVD, the user interface unit has a warning generation unit that can make a request to secure the free capacity of the digital recording medium by replacing the DVD, etc. An editing device is provided.

  According to a fifth aspect of the present invention, in the editing apparatus according to the first aspect, when the end is detected by the start / end detection unit during dubbing, the magnetic tape reproducing means and the digital recording means are instructed to end the dubbing, and the magnetic tape When the dubbing operation is performed again from the user interface unit without taking out the recording unit, the magnetic tape drive unit and the start / end detection unit are used to rewind to the start short without performing fast feed, and the storage unit is used for bit rate adjustment. An editing apparatus comprising a control unit that uses a recording time stored in a digital recording medium is provided.

  According to a sixth aspect of the present invention, when the free space of the digital recording medium is secured without taking out the magnetic tape after the recording time of the digital recording medium is calculated, the digital recording medium free space obtaining means obtains the digital recording medium. The free space is acquired, the bit rate is adjusted so that the recording time of the digital recording medium stored in the storage unit is within that free space, and the recording and magnetic recording on the digital recording medium are performed at the adjusted bit rate. There is provided an editing apparatus comprising a control unit capable of instructing digital recording means and magnetic tape reproducing means to start dubbing so that tape reproduction can be performed simultaneously.

  A digital recording medium, such as a DVD, by dividing all recording portions of video / audio information contained in one magnetic tape such as a video tape into each program by a simple user operation according to claims 1 and 2. An editing apparatus that performs dubbing at an optimum bit rate is obtained.

  According to claim 3, the time at the lowest bit rate that can be recorded with respect to the free capacity of a digital recording medium such as a DVD, for example, the recording time of a magnetic tape recorded on a magnetic tape such as a video tape and the detection of a VISS signal, for example. An editing apparatus is obtained in which a warning is issued so that the user does not accidentally start dubbing when the recording time is shorter than the recording time of the digital recording medium added with the extra magnetic tape recording time calculated from the number.

  According to claim 4, when there is no free space on a digital recording medium such as a DVD, the user can edit the current recording device without acquiring the recording time by fast-forwarding or rewinding a magnetic tape such as a video tape. It can be seen that dubbing is impossible for the DVD inserted in the disc, and dubbing can be completed more quickly or dubbing can be continued by exchanging the DVD.

  According to claim 5, when analog video and audio information recorded on a magnetic tape such as a video tape is continuously dubbed on a plurality of digital recording media such as DVDs, the dubbing is performed more quickly. It can be carried out.

  According to claim 6, for example, the time at the lowest bit rate that can be recorded with respect to the free space of a digital recording medium such as a DVD is shorter than the recording time of the digital recording medium. Can continue dubbing

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a block diagram showing a configuration of a video / audio recording / reproducing apparatus according to Embodiment 1 of the present invention.

  In FIG. 1, reference numeral 1 denotes a magnetic tape as a dubbing source capable of recording / reproducing analog video / audio information, and corresponds to a so-called video tape.

  Reference numeral 3 denotes a magnetic tape driving / reproducing unit that reproduces video / audio information recorded on the magnetic tape 1 and fast-forwards and rewinds the magnetic tape 1, and includes a capstan, a roller, and a signal for controlling the traveling of the magnetic tape medium 1. A rotating drum having a recording / reproducing head, a control head for recording a control signal on the magnetic tape 1 and detecting a VISS signal as an example of a recorded control signal or index signal, and reproduced video / audio It consists of a signal processing circuit that performs various signal processing of information.

  Reference numeral 2 denotes a digital recording medium as a dubbing destination capable of recording and reproducing digital video / audio information. In this embodiment, a recording medium that is detachable from the apparatus such as a DVD (Digital Versatile Disc) is assumed. However, it may be a fixed recording medium such as a hard disk, and the medium is not particularly limited.

  Reference numeral 5 denotes a digital recording medium access unit for recording digital video / audio information and reading signals from the digital recording medium. If the digital recording medium 2 is a DVD, the digital recording medium 2 includes a spindle motor that rotates the DVD, a laser diode that records and reproduces signals, and an optical pickup.

Reference numeral 4 denotes an analog / digital conversion unit that converts analog video information output from the magnetic tape drive / playback unit 3 into digital video information and outputs the digital video information to the digital recording medium access unit 5. Reference numeral 13 denotes a user such as a remote controller, a main unit key, or a GUI screen input. This is a user interface unit that performs input, output such as a display tube and GUI screen display. In the present embodiment, remote control, main body keys, and GUI screen input are given as user input means, but other means are also included as long as the user inputs or operates them. Moreover, although a display tube and a GUI screen display are mentioned as output, any means other than these may be included as long as it is a means for notifying or displaying to the user.

  A storage unit 15 stores information.

  Reference numeral 6 denotes a reproduction control signal detection unit for detecting a reproduction control signal recorded on the magnetic tape 1 reproduced by the magnetic tape drive reproduction unit 3.

  Reference numeral 7 denotes a magnetic tape drive unit that performs fast-forward and rewind processing of the magnetic tape with respect to the magnetic tape drive / playback unit 3.

  Reference numeral 8 denotes a start / end detection unit that detects the start and end of the magnetic tape 1 that is being played back, fast-forwarded, or rewound in the magnetic tape drive / playback unit 3.

  Reference numeral 9 denotes a VISS signal detection unit that detects a VISS signal that is one of the index signals of the magnetic tape 1 that is being played back, fast-forwarded, or rewound in the magnetic tape drive playback unit 3.

  Reference numeral 10 denotes a magnetic tape reproducing unit that performs reproduction processing of the magnetic tape 1 on the magnetic tape driving / reproducing unit 3.

  11 converts the analog video information output from the magnetic tape drive / playback unit to the analog / digital conversion unit 4 into digital video / audio information at an arbitrary bit rate, and outputs the digital video / audio information to the digital recording medium access unit 5 Reference numeral 2 denotes a digital recording unit that performs processing so as to record digital video / audio information.

  Reference numeral 12 denotes a digital recording medium free space acquisition unit that performs processing on the digital recording medium access unit 5 so as to read the free space of the digital recording medium 2.

  Reference numeral 14 denotes a case where the time at the lowest bit rate that can be recorded with respect to the free space of the digital recording medium is less than the digital recording medium recording time calculated from the magnetic tape recording time and the extra magnetic tape recording time. This is a warning generating unit that displays a warning and issues a warning to the user to cancel dubbing.

  Reference numeral 15 denotes a dubbing operation input from the user interface unit, and a reproduction control signal detection unit 6, a magnetic tape drive unit 7, a start / end detection unit 8, a VISS signal detection unit 9, a magnetic tape reproduction unit 10, a digital recording unit 11, and a digital recording unit. It is a control unit that is means for controlling the recording medium free space acquisition unit 12 and the warning generation unit 13.

  The operation of the video / audio recording / reproducing apparatus configured as described above will be described below with reference to FIGS.

  FIG. 2 is a flowchart for explaining a process for acquiring a bit rate to be recorded on a digital recording medium by using a VISS signal detection process at the time of dubbing (referred to herein as an automatic dubbing preparation process).

  S2A is an automatic dubbing preparation process S2A that is executed when the control unit 16 receives a dubbing operation input from the user interface unit 13, and S2B is a control signal that is detected by the control unit 16 when the magnetic tape 1 is rewound. The reproduction control signal detection S2B is performed when the reproduction control signal is detected using the unit 5. The control unit 16 uses the VISS signal detection unit 9 to transmit the VISS signal when the magnetic tape 1 is rewound. This is the VISS signal detection S2B performed when it is detected.

  In the reproduction control signal detection S2B, when the control unit 16 receives a reproduction control signal detection notification from the reproduction control signal detection unit 6 by rewinding in the dubbing preparation process for the first time after the magnetic tape 1 is inserted into the magnetic tape drive reproduction unit 3, S21 is performed. If not, the reproduction control signal detection S2B is terminated (S20).

  When the control unit 16 receives a reproduction control signal detection notification from the reproduction control signal detection unit by rewinding in the dubbing preparation process for the first time after the magnetic tape 1 is inserted into the magnetic tape drive reproduction unit in S20, the control unit 16 stores the storage unit 15 Is commanded to increase the count of the number of detected reproduction control signals by 1 (S21), and the reproduction control signal detection S2B is terminated.

  In the VISS signal detection S2C, when the control unit 16 receives a VISS signal detection notification from the VISS signal detection unit 9 by rewinding in the dubbing preparation process for the first time after the magnetic tape 1 is inserted into the magnetic tape drive reproduction unit 3, the process of S31 is performed. If not, the VISS signal detection S2C is terminated (S30).

  When the control unit 16 receives a VISS signal detection notification from the VISS signal detection unit by rewinding in the dubbing preparation process for the first time after the magnetic tape 1 is inserted into the magnetic tape drive / reproduction unit 3 in S30, the control unit 16 stores in the storage unit 15 On the other hand, a command is issued to increase the count of the number of VISS detections by one (S31), and the reproduction control signal detection S2C is terminated.

  In the automatic dubbing preparation process S2A, if it is the first dubbing preparation process after the magnetic tape 1 is inserted into the magnetic tape driving / reproducing unit 3, the process of S1 is performed, and if not, the process of S5 is performed (S0).

  When the dubbing operation is performed for the first time after the magnetic tape 1 is inserted into the magnetic tape driving / reproducing unit 3 at S0, the control unit 16 uses the magnetic tape driving unit 7 to fast forward the magnetic tape 1 to the magnetic tape driving / reproducing unit 3. (S1), and then waits for the end of the magnetic tape 1 to be detected from the magnetic tape driving / reproducing unit 3 using the start / end detection unit 8 (S2). If the end is detected, the control unit 16 uses the magnetic tape drive unit 7 to instruct the magnetic tape drive / playback unit 3 to stop fast-forwarding of the magnetic tape 1 (S3), and plays back to the storage unit 15 The count of the detected number of control signals is initialized to 0 (S4), and the count of the detected number of VISS signals is initialized to 0 in the storage unit 15 (S5). Here, as an example, the processing of S3, S4, and S5 is described as being performed in this order, but the order is not limited, and the processing may be performed in parallel.

  Next, the control unit 16 instructs the magnetic tape drive reproduction unit 3 to rewind the magnetic tape 1 using the magnetic tape drive unit 7 (S6), and then uses the start / end detection unit 8 to perform magnetic The process waits for the start of the magnetic tape 1 to be detected from the tape driving / reproducing unit 3 (S7). When the control unit 16 detects the VISS signal recorded on the magnetic tape 1 inserted in the magnetic tape drive reproduction unit 3 using the VISS signal detection unit 9 in S7, the control unit 16 performs the VISS signal detection S2C. When a reproduction control signal recorded on the magnetic tape 1 inserted in the magnetic tape drive reproduction unit 3 is detected using the reproduction control signal detection unit 6, reproduction control signal detection S2B is performed.

  If the start end is detected in S7, the control unit 16 instructs the magnetic tape drive / reproducing unit 3 to stop the rewinding of the magnetic tape 1 using the magnetic tape drive unit 7 (S8). Reads out the number of reproduction control signal detections added by reproduction control signal detection S2B during rewinding from the storage unit 15, calculates the magnetic tape recording time, and stores the magnetic tape recording time in the storage unit 15 (S10).

  Next, the control unit 16 reads the VISS signal detection number added by the VISS signal detection S2B during rewinding from the storage unit 15, calculates the magnetic tape recording time according to the VISS signal detection number, and records the magnetic tape recording in the storage unit 15. The extra time is stored (S11).

  Further, the control unit 16 reads the extra magnetic tape recording time and the magnetic tape recording time from the storage unit 15 and adds them together to calculate the DVD recording time and store the DVD recording time in the storage unit 15 (S11).

  Then, the control unit 16 can acquire the free space of the digital recording medium 2 from the digital recording medium access unit 5 using the digital recording medium free space acquisition unit 12 (S12), and can record the free space of the digital recording medium 2 If the time at the lowest bit rate is less than the DVD recording time stored in the storage unit 15, it is determined that dubbing is impossible, and the process of S15 is performed. Otherwise, it is determined that dubbing is possible, and the process of S14 is performed. Perform (S13).

  If the control unit 16 determines that dubbing is not possible in S14, the control unit 16 uses the warning generation unit 14 to display a warning message on the user interface unit 13 (S15) and terminates the automatic dubbing preparation process S2A. To do.

  When the control unit 16 determines that the dubbing is possible in S13, the control unit 16 calculates a bit rate at which the video / audio information for the DVD recording time stored in the storage unit 15 is accommodated with respect to the free space of the digital recording medium 2. The data is stored in the storage unit 15 (S14), the automatic dubbing preparation process S2A is terminated, and the process proceeds to the automatic dubbing process.

  Here, as an example, if it is determined that dubbing is not possible in S13, a warning is issued in S15 and the dubbing preparation is ended. For example, the digital recording medium 2 is a detachable recording medium such as a DVD. If there is, a warning is issued to replace the digital recording medium to ensure free space, and when a new digital recording medium is inserted, the dubbing preparation process may be resumed from S12, or a plurality of digital recording media may be installed. If it is a recording / reproducing apparatus, a dubbing preparation process may be resumed from S12 by substituting with another digital recording medium to secure a free space.

  In this case, the free space of the digital recording medium 2 is acquired for the first time in S12. However, the free space of the digital recording medium 2 is acquired immediately after the user input for starting dubbing from the user interface unit. If not, a warning may be issued and the dubbing preparation process may not proceed until the free space is secured.

  Next, an automatic dubbing process for dubbing video / audio information recorded on the magnetic tape 1 at the bit rate obtained by the automatic dubbing preparation process will be described with reference to FIG. FIG. 3 illustrates a method of recording all the video / audio information except for the non-recorded portion recorded on the magnetic tape 1 during dubbing into the digital recording medium 2 by dividing the program into each program using the VISS signal detection process. It is a flowchart for doing.

  S3A is an automatic dubbing process S3A that is determined after dubbing is possible in S13 of the automatic dubbing preparation process S2A, and S3B is a reproduction control signal detection unit 6 when the control unit 16 performs reproduction of the magnetic tape 1 at S3B. Is a reproduction control signal non-detection S3B that is performed when no recording of the reproduction control signal is detected by using the magnetic field, and S2C is a magnetic that is inserted into the magnetic tape drive reproduction unit 3 by the control unit 16 using the magnetic tape reproduction unit 10. This is the VISS signal detection S3C performed when the control unit 16 detects the VISS signal using the VISS signal detection unit 9 when the tape 1 is being reproduced.

  In the reproduction control signal non-detection S3B, when the control unit 16 receives a non-detection notification of the reproduction control signal from the reproduction control signal detection unit 6, the digital recording medium 2 is used for the digital recording medium 2 using the digital recording unit 11. Processing for temporarily stopping recording is performed (S50).

  When the control unit 16 receives a notification of end detection from the start / end detection unit 8, the control unit 16 performs the process of S54, and otherwise, performs the process of S52 (S51).

  When the end of the magnetic tape 1 is detected in S51, the control unit 16 stops the reproduction operation of the magnetic tape 1 performed by the magnetic tape reproduction drive unit 3 using the magnetic tape reproduction unit 10, and further controls the control unit. 16 uses the digital recording unit 11 to stop recording on the digital recording medium 5 to the digital recording medium access unit 5 and write the management information of the digital recording medium 2 (S54), and terminates the automatic dubbing process. To do.

  When the end of the magnetic tape is not detected in S51, the control unit 16 receives a notification of detection of the reproduction control signal of the magnetic tape 1 being reproduced by the magnetic tape drive reproduction unit 3 from the reproduction control signal detection unit 6. If not, the process of S51 is performed (S52).

  When the reproduction control signal of the magnetic tape 1 is detected in S52, the control unit 16 uses the digital recording unit 11 to output the analog video / audio information output from the magnetic tape drive / reproduction unit 3 to the analog-digital conversion unit 4. Is converted into digital video / audio information of the bit rate stored in the storage unit 15 in the dubbing preparation process and is output to the digital recording medium access unit 12, and the digital video / audio information is further transmitted to the digital recording medium access unit 12 by the digital recording medium 2 Is recorded (S53), and the reproduction control signal non-detection process S3B is terminated.

  In the VISS signal detection S3C, when the control unit 16 receives a VISS signal non-detection notification from the VISS signal detection unit 9, the digital recording unit 11 is used to record the digital recording medium access unit 5 on the digital recording medium 2. The process of stopping and writing the management information of the digital recording medium 2 is performed (S60), and the control unit 16 stops the reproduction of the magnetic tape 1 to the magnetic tape drive reproduction unit 3 using the magnetic tape reproduction unit 10, Using the magnetic tape driving unit 7, the magnetic tape driving / reproducing unit 3 performs rewinding for a predetermined time so that the magnetic tape 1 returns to the actual program start point (S61).

  Here, as an example, the processing of S60 and S61 is performed in this order, but conversely, it may be performed in the order of S61 and S60, or may be performed in parallel.

  When the processes of S60 and S61 are completed, the control unit 16 performs a reproduction process of the magnetic tape 1 on the magnetic tape drive reproduction unit 3 using the magnetic tape reproduction unit 10, and an analog-digital conversion unit using the digital recording unit 11. 4, the analog video / audio information output from the magnetic tape drive / playback unit 3 is converted into digital video / audio information of the bit rate stored in the storage unit 15 in the dubbing preparation process, and output to the digital recording medium access unit 12. Further, the digital recording medium access unit 12 is processed to record the digital video / audio information as a separate program on the digital recording medium 2 (S62), and the VISS signal detection S3C is terminated.

  In the automatic dubbing process S3A, the control unit 16 performs the reproduction process of the magnetic tape 1 with respect to the magnetic tape drive reproduction unit 3 using the magnetic tape reproduction unit 10 and the analog recording / digital conversion unit 4 with the digital recording unit 11. Then, the analog video / audio information output from the magnetic tape drive / playback unit 3 is converted into digital video / audio information of the bit rate stored in the storage unit 15 by the dubbing preparation process, and is output to the digital recording medium access unit 12, and further digitally recorded. The medium access unit 12 is processed to record the digital video / audio information on the digital recording medium 2 (S40), and then the end of the magnetic tape 1 is detected from the magnetic tape driving / reproducing unit 3 by using the start / end detection unit 8. Waiting to be performed (S41).

  When the end of the magnetic tape 1 is detected in S41, the control unit 16 stops the reproduction operation of the magnetic tape 1 performed by the magnetic tape reproduction drive unit 3 using the magnetic tape reproduction unit 10, and further controls the control unit. 16 uses the digital recording unit 11 to stop the recording to the digital recording medium 5 to the digital recording medium access unit 5 and write the management information of the digital recording medium 2 (S54), and performs an automatic dubbing process SB. finish.

  As described above, the analog video / audio information stored on a single magnetic tape such as a video tape can be set by a simple user operation so that the bit rate can be stored in a single digital recording medium such as a DVD. It is possible to adjust to obtain an editing device that divides each program and performs dubbing, and for the recording time at the lowest bit rate that can be recorded on the free space of the digital recording medium 2 such as a DVD, for example. For example, if the recording time of the video / audio information recorded on the magnetic tape 1 such as a video tape is shorter than the recording time of the digital recording medium obtained by adding the recording time extra amount corresponding to the number of programs, a warning is issued and it is mistaken. It is possible to obtain an editing device that can prevent dubbing from being performed, and to use a magnetic tape such as a video tape. When video and audio information recorded on the tape 1 in succession to dub the digital recording medium 2 such as a plurality of DVD, it is possible to obtain an editing apparatus capable of dubbing in a shorter time.

  The present invention relates to dubbing of a plurality of recording media. In the above description, dubbing from a video tape to a DVD has been described, but other combinations may be used.

The block diagram which shows the structure of the editing apparatus in embodiment of this invention A flowchart showing preparation processing for dubbing from a magnetic tape to a digital recording medium in the embodiment A flowchart showing a dubbing process from a magnetic tape to a digital recording medium in the embodiment Schematic diagram for explaining problems that occur when program division is performed when the VISS signal detection start point and the VISS signal determination point are different in the background art Schematic diagram for explaining problems that occur when program division is performed when the actual program start point and the VISS signal detection decision point are different in the background art Schematic diagram showing how to solve the problem that the division point of the program differs from the actual program start point in the background art

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Magnetic tape 2 Digital recording medium 3 Magnetic tape drive reproduction | regeneration part 4 Analog digital conversion part 5 Digital recording medium access part 6 Reproduction | regeneration control signal detection part 7 Magnetic tape drive part 8 Start / end detection part 9 VISS signal detection part 10 Magnetic tape reproduction | regeneration part DESCRIPTION OF SYMBOLS 11 Digital recording part 12 Digital recording medium free space acquisition part 13 User interface part 14 Warning generation part 15 Storage part

Claims (6)

An editing apparatus for editing a signal from a first recording medium made of a tape-shaped medium to a second recording medium, wherein the recording time and number of information recorded in the first recording medium are detected. Detecting means, a second detecting means for detecting a recordable time in the second recording medium, a reproducing means for reproducing a signal from the first recording medium, and a signal to the second recording medium Recording means for performing recording, and the recording means performs signal processing based on the detection results of the first and second detection means so that the signal reproduced by the reproduction means fits in the second recording medium. An editing device characterized by Magnetic tape driving / reproducing means for reproducing analog video / audio information recorded on the magnetic tape, fast-forwarding and rewinding the magnetic tape, digital recording medium access means for writing to and reading from the digital recording medium, and the magnetic Analog / digital conversion means for converting analog video / audio information reproduced by the tape-driven reproduction means into digital video / audio information and outputting the digital video / audio information to the digital recording medium access means; a user interface unit capable of operation input by the user; An editing device comprising storage means for storing,
Reproduction control signal detection means for detecting a reproduction control signal recorded on the magnetic tape from the magnetic tape drive reproduction means, magnetic tape drive means for performing fast forward and rewind processing on the magnetic tape drive reproduction means, Start / end detection means for detecting the start and end of the magnetic tape from the magnetic tape drive reproduction means, index information detection means for detecting an index signal recorded on the magnetic tape from the magnetic tape drive reproduction means, and the magnetic tape drive Magnetic tape reproducing means for performing reproduction processing of the magnetic tape on the reproducing means, and an analog video signal output from the magnetic tape driving / reproducing means to the digital recording medium access means for the analog / digital converting means Digital video signal converted at a rate and output digitally Digital recording means for processing the recording medium access means to write digital video / audio information to the digital recording medium, and digital recording for processing the digital recording medium access means to read the free space of the digital recording medium Media free space acquisition means,
When a dubbing operation is input from the user interface section, the magnetic tape drive means and the start / end detection means are used to fast-forward the magnetic tape to the end, and then the playback is performed when rewinding to the start end. Using the control signal detection means and the index signal detection means, the number of playback control signals and index signals recorded on the magnetic tape are obtained, and the magnetic tape recording time and the magnetic tape recording time surplus are calculated based on the obtained number. The digital recording medium recording time is calculated from these values, the contents are stored in the storage means, the free capacity of the digital recording medium is acquired using the digital recording medium free capacity acquisition means, and the free capacity is Adjust the bit rate so that the recording time of the digital recording medium stored in the storage means is kept, and adjust the bit rate. Dubbing is started by instructing the digital recording means and the magnetic tape reproducing means so that the recording to the digital recording medium and the reproduction of the magnetic tape can be performed at the same bit rate. If it is notified, the digital recording means is temporarily stopped, and if there is a reproduction control signal again, the digital recording means is instructed to perform recording, and the new dex signal detecting means When the detection of the index signal is notified, after instructing the magnetic tape reproducing means to stop reproduction and instructing the magnetic tape driving means to rewind for a certain period of time, the recording is interrupted to the digital recording means, When the management information of the digital recording medium is written and these processes are completed, the reproduction to the magnetic tape reproducing means is started again. Digital recording media editing apparatus, characterized in that it comprises a control unit for instructing to start recording of the video and audio information as a new program to the access unit. When the time at the lowest bit rate that can be recorded with respect to the free space of the digital recording medium is shorter than the recording time of the digital recording medium, a warning is displayed on the user interface unit to cancel dubbing or 3. The editing apparatus according to claim 2, further comprising warning generation means capable of making a request for securing a free space. When a dubbing operation is input from the user interface unit, first, the digital recording medium free space acquisition unit is used to acquire the free space of the digital recording medium. If there is no free space, digital recording is performed on the user interface unit. 3. The editing apparatus according to claim 2, further comprising warning generation means capable of making a request to secure a free space of the medium. When the end is detected by the start / end detection means during dubbing, the magnetic tape reproducing means and digital recording means are instructed to end the dubbing operation, and the dubbing operation is performed again from the user interface unit without taking out the magnetic tape. Is performed, the magnetic tape drive means and the start / end detection means are used to rewind to the start end without fast-forwarding, and the digital recording medium recording time stored in the storage device for bit rate adjustment is used. The editing apparatus according to claim 2, further comprising a control unit to be used. When the free space of the digital recording medium is secured without taking out the magnetic tape after calculating the recording time of the digital recording medium, the free space of the digital recording medium is acquired by the digital recording medium free space acquisition means, The bit rate is adjusted so that the recording time of the digital recording medium stored in the storage device is within the free capacity, and recording on the digital recording medium and reproduction of the magnetic tape can be performed simultaneously at the adjusted bit rate. 5. The editing apparatus according to claim 2, further comprising a control unit capable of instructing the digital recording means and the magnetic tape reproducing means to start dubbing.

Images