JP2001067844A - Information signal processing apparatus and method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a signal processing apparatus and the method thereof which copy-records or edit-records on a separate recording medium video or audio signals recorded on a recording medium such as specified magnetic tapes in the analog or digital recording system, the latter medium allowing signals different in attribute such as e.g. analog and digital recording systems, etc., to be mixed. SOLUTION: The information signal processing apparatus for copying or editing the content of a first recording medium having mixedly recorded signals different in attribute on a second recording medium comprises means 11 for identifying a specified attribute of the signals recorded on the first recording medium, means 3-6 for playing backing the signals on the first recording medium, corresponding to the identified attribute, means 7-9 for recording the signals in a specified recording system on the second recording medium, record control means for controlling the recording means 7-9 according to the identified result by the identifying means 11 so that the signals in a specified section from the playback means 3-6 are recorded in a specified section in a specified recording system corresponding to a specified attribute.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium, such as an analog recording system and a digital recording system, in which signals having different attributes can coexist. The present invention relates to a signal processing device and a signal processing method for copying or editing and recording video and audio signals recorded on a medium on another recording medium.

[0002]

2. Description of the Related Art Home video tape recorders for recording television broadcasts and the like are widely used. However, moving picture experts gross pictures (MPEG) are required to record a large amount of information.
Information compression technology such as the up) method has been actively developed, and it has become applicable to consumer use in terms of price. As for television broadcasting, digital broadcasting is going to be widely performed in addition to conventional analog broadcasting, and a digital video recording system for home video tape recorders is beginning to spread so that these broadcastings can be recorded. If the digital broadcast signal is digitally recorded as it is, it is possible to enjoy reproduction with high characteristics without deterioration in image quality and sound quality.

As a home VTR (video tape recorder), for example, an analog recording type 8 mm VTR or VHS (Vide
o Home System) VTRs are widely used. The magnetic tapes used in these VTRs are relatively inexpensive, and many of these tapes are on the market. As digital broadcasting is about to begin in earnest, these magnetic tapes have become more widely used in terms of the spread of digital recording VTRs and the effective use of 8mm and VHS VTRs. It is conceivable to perform digital recording in addition to the conventional analog recording method. From such a viewpoint, D-VHS (digital video
home system) Various recording and reproducing methods such as a recording and reproducing method and a digital high 8 recording and reproducing method have been developed. Digital recording VTRs that use 8mm VTR tapes or VHS VTR tapes are becoming popular due to the common use of mechanisms such as tape running and the improvement of magnetic tape performance.

[0004]

Since these magnetic recording tapes can perform both analog recording and digital recording, different signals of analog recording signals and digital recording signals are mixed on one recording tape. It could be recorded. When trying to reproduce a tape in which analog recording signals and digital recording signals are mixed in this way on a VTR that only supports conventional analog recording tapes, for example, when a digital recording portion is formed during analog recording and reproduction, Since the digitally recorded portion cannot be reproduced, the reproduced image or sound is interrupted on the way.

[0005] If the analog recording section and the digital recording section coexist in a complicated manner, the reproduction is not performed frequently, and the user feels very troublesome. Therefore, it is only necessary to use the tape dedicated to analog recording and the tape dedicated to digital recording separately, but it is also conceivable that another type of signal is erroneously recorded on each dedicated tape. In addition, providing a dedicated tape increases the number of types of tape and makes it cumbersome to manage. In addition, VHS double deck, 8mm VTR
Double decks, VHS and 8mm double decks are conceivable. However, it is troublesome to copy and edit tapes while considering the recording method.

For example, as shown in FIG. 10A, when there is a magnetic tape in which analog recording units A and C of the VHS system and digital recording units B and E of the D-VHS system are mixed, editing and recording are performed. According to the conventional technique, only the analog recording units A and C can be recorded as shown in FIG. 10B, or even if the magnetic tape shown in FIG. They are mixed in a complicated manner, can only produce the exact same tape, and are difficult to use and manage.

[0007] Therefore, if an analog recording signal or a digital recording signal is continuously recorded when copy recording or editing recording is performed, it is temporarily reproduced by another apparatus which does not support digital recording. Even in this case, if the part to be played back and the part not to be played back do not appear frequently and cumbersomely and the edited tape is further edited and recorded,
Operation is easy because the recording method is continuous.

When digital copy recording is prohibited due to a copyright problem, copy recording and editing recording are automatically performed by an analog recording method, or the recording method is set by a unified recording method set by a user. Even on tapes with mixed recordings, copy recording and editing recording are performed automatically, so that signals of different recording systems are not mixed on the recorded tapes. So that it can be played efficiently.

The present invention realizes such a thing. From the above viewpoint, it is possible to prevent the recording of different types of signals from being complicatedly mixed and to facilitate the management and organization of the recording medium. It is an object of the present invention to provide a technique capable of copy recording and editing recording more efficiently than conventional techniques.

[0010]

According to the present invention, as an information signal processing apparatus for solving the above-mentioned problems, the contents of a first recording medium in which signals having different attributes coexist are copied to a second recording medium. An information signal processing device for editing, comprising: a determination unit configured to determine a predetermined attribute of a signal recorded on the first recording medium; and reproducing a signal from the first recording medium in accordance with the determined attribute. Reproducing means for recording, and recording means for recording a signal on the second recording medium in a predetermined recording method;
Recording control for controlling the recording means so as to record a signal in a predetermined section from the reproducing means in a predetermined section in the predetermined recording mode corresponding to the predetermined attribute, in accordance with a result of the determination from the determination means. Means.

According to the present invention, there is provided an information signal processing method for solving the above-mentioned problems, wherein an information signal for copying or editing the contents of a first recording medium on which signals having different attributes are mixed to a second recording medium. A processing method comprising: determining a predetermined attribute of a signal recorded on the first recording medium; reproducing a signal from the first recording medium in accordance with the determined attribute; Then, recording control is performed such that a signal in a predetermined section from the reproduction is made to correspond to the predetermined attribute and is recorded on the second recording medium in a predetermined section by a predetermined recording method.

According to the information signal processing apparatus and the information signal processing method according to the present invention, the attribute of a signal recorded on the first recording medium, such as an analog recording system or a digital recording system, is determined, and signals having different attributes are determined. Is recorded on the recording medium, when recording on the second recording medium, a signal of the same recording method is recorded in a predetermined section as continuously as possible in a predetermined recording method corresponding to the attribute. The recording can be controlled as follows.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an information signal processing apparatus and an information signal processing method according to the present invention will be described below with reference to the accompanying drawings. Here, embodiments of the invention will be described in the following order. [1] Example of block configuration showing overall configuration of one embodiment of the present invention [2] Example of determination configuration of recording method in overall block configuration [3] Description of operation of overall configuration by flowchart [4] Various editing copies (1) Example of application to edit copy recording of tapes of the same VTR type (2) Example of application to edit copy recording of tapes of different VTR type [5] Example of first modification [6] Second [7] Illustrative example of the third modified example

[1] Example of Block Configuration Showing Overall Configuration of One Embodiment of the Present Invention FIG. 1 is a block diagram schematically showing an overall configuration of an information signal processing device according to one embodiment of the present invention. It is. Here, a VHS system and an 8-mm system VTR will be described as examples.
As described above, for example, a VHS video cassette tape or an 8 mm video cassette tape is mounted on the tape / head unit 3 and the tape / head unit 10. The system controller 12 includes a microprocessor, a memory, and the like.
The user inputs commands such as copy record and edit record in response to a user input from. The recording mode here is set to a priority order of analog recording and digital recording, and a recording mode such as only analog recording or only digital recording.

When a tape is mounted on the tape / head unit 3, if the tape is not at the tape top, the tape is rewound to the tape top. The tape on the reproducing side of the tape / head unit 3 reproduces a section of the tape corresponding to copy recording and editing recording according to a user input while the analog or digital recording method is determined by a determination unit 11 described later. The signal is processed by a predetermined signal processing unit described later, and is recorded on the tape on the recording side of the tape / head unit 10. When analog recording and digital recording are mixed and recorded alternately, for example, the reel motor unit 1 or the head of the next analog section is reproduced once a predetermined analog section is reproduced so that the analog recording section is reproduced continuously. The capstan unit 2 is controlled by the system controller 12 so that the tape on the reproducing side of the tape / head unit 3 runs forward, and when the head reaches a predetermined beginning, the capstan unit 2 can copy, edit and record correctly from the beginning of reproduction.
Is controlled to slightly reverse.

When the next reproduction section is being searched, the tape recording operation on the recording side of the tape / head unit 10 is controlled by the system controller 12 to control the capstan running unit 18 on the recording side. Has been stopped.
The reproduced signal is amplified to a predetermined level by the reproduction amplifier unit 4 and input to the determination unit 11 and the switch SW1.

By the way, as will be described later, the attached tape
When the tape on the recording side of the head unit 10 is a tape having characteristics that cannot be digitally recorded, for example, neither a D-VHS nor an S-VHS compatible video tape, but a normal VHS tape, the user is alerted by the warning unit 17. Alternatively, the display unit 13 may indicate whether copy recording and editing recording may be performed by the analog recording method.

As will be described later, the recording method such as whether the signal recorded on the reproducing side tape mounted on the tape / head unit 3 side is analog recording or digital recording depends on the cassette detecting unit 15 and the CTL (control). The discrimination unit 11 discriminates the section 14 or the reproduced signal. The CTL section 14 is determined by the determination result of the determination section 11 or the system controller 12.
The recording system is discriminated by the signal from the cassette detection unit 15 and the signal from the cassette detection unit 15, and the changeover switches SW1 and SW2 are switched. In the case of the analog recording system, the analog reproduction processing unit 5 is used. 6 performs predetermined reproduction signal processing.

The analog reproduction processing section 5 performs predetermined Y / C signal processing of the video signal, predetermined AFM audio signal processing, and the like. The digital reproduction processing unit 6 performs reproduction equalization processing, error correction processing, and predetermined processing such as MPEG decoding. Also, when the identification signal in the reproduced data is detected, and the copyright cannot be obtained, the digital recording section switches to the analog recording method and controls the switches SW3 and SW4 to switch the mode so that copy recording and editing recording can be performed. And a warning unit 17 informs the user that digital recording is not possible.

In the case of performing analog recording, the video signal and the audio signal are each converted into a predetermined Y / C signal by the analog recording processing unit 7.
When signal processing and AFM audio recording signal processing are performed and digital recording is performed, the digital recording processing unit 8 performs predetermined signal processing such as MPEG encoding or error correction code addition on the video and audio signals. Where, for example, D-VHS and DV
In the case of the same VTR system, such as an HS double deck or a digital high 8 and a digital high 8 double deck, only the predetermined error correction signal processing during playback is performed, and the encoding and decoding processing such as MPEG is bypassed and copied. Records,
An edit record may be made. In addition, digital copy record,
In the case of edit recording, the fact that digital copy recording and editing recording have been performed may be recorded in a predetermined identification data area, so that digital recording can be performed many times, or illegal digital recording can be prevented.

When copy recording and editing recording are performed by changing the recording order from the original tape, the information data and the like may be recorded. The signal on which the predetermined recording signal processing has been performed is input to the recording amplifier unit 9 via the SW 4 and subjected to processing for obtaining a predetermined recording current, recording equalization processing, and the like. Copy recording and editing recording are performed according to a recording mode and a predetermined recording method.

FIG. 2 schematically shows the concept of the front panel surface of the information signal processing apparatus shown in FIG. As shown in FIG. 2, there is a cassette insertion slot 20 for VTR [A] and a cassette insertion slot 21 for VTR [B], and a tape recording operation is provided below the cassette insertion slot 20 for VTR [A]. LCD showing status (liquid
display unit 13 in FIG.
Are shown. The display unit 13 has a scale display unit (TIME) 22 in which a time scale indicating the elapsed time is engraved at the uppermost stage. For example, a tape / head unit to be copied and edited by the scale display unit 22 It is possible to know the elapsed processing time of the reproduction side tape 3 and the recording side tape of the tape / head unit 10. The second stage is provided with a time display section 23 for visually displaying the total reproduction time (TOTAL) indicating the actual processing progress in a bar shape. If VTR [A] is the playback side of the tape / head unit 3 and VTR [B] is the recording side of the tape / head unit 10, the playback status of VTR [A] on the playback side is shown in the third row. The current playback position of the playback (PB) display section 24 is illuminated by an indicator 24A, and the used area of the tape on the playback side that has already been copied, edited and recorded is:
The digital recording unit 24B and the analog recording unit 24C change colors and blink or light up.
It is easy for the user to understand if the display color is changed such that B is a light color and the analog recording unit 24C is green.

In the fourth row, the VTR [B], which is a recording (REC) display section 25, displays the area of the tape on which copy recording and editing recording have already been performed, on the digital recording section 25A and the analog recording section 25.
B changes color and blinks or lights up. In addition,
The blinking and lighting may be changed between the reproducing side and the recording side, and the operation examples are summarized in Table 1 below.

[0024]

Here, the means for knowing the time of the tape can be easily known by observing the tape reel, the tape running speed, and the like, as disclosed in Japanese Patent Application Laid-Open No. 6-349143 and others.

[2] Example of discriminating configuration of recording method in whole block configuration In addition, as for the method of discriminating the recording method, the reproducing side is described as a VHS system for simplicity, but the same applies to a VTR such as an 8 mm system. Can be done. When considering VHS tapes, VHS tapes, S-VHS tapes, D-VHS tapes, etc. can be assumed, but D-VHS tapes are suitable for digital recording due to the performance of the tapes. For example, as shown in FIG. 3, the identification of each tape can be performed by identification holes 27 and 28 for identifying attributes provided in the tape main body 26. The identification hole 27 is an identification hole of the S-VHS tape. The identification hole 28 is an identification hole of the D-VHS tape. Note that S
-VHS tapes can also be used for digital recording, but VHS tapes usually only perform analog recording. Table 2 shows the permissible recording modes depending on the type of VHS tape.

[0027]

As shown in Table 2, the VHS tape is used only for analog recording. In the case of the S-VHS tape, digital recording or analog recording is used. The digital recording may be automatically performed similarly to the D-VHS tape. In the case of a D-VHS tape, analog recording or digital recording may be used.

Next, the means for determining whether the recorded signal is analog recording or digital recording will be described. In the embodiment of the present invention, the cycle of the CTL (control) signal is measured because the frequency band is different between the analog recording signal and the digital recording signal, or the VTR tape speed is different between the analog recording VHS mode and the D-VHS mode. It utilizes the fact that it can be determined by such methods. Table 3 shows an example of each recording mode of the D-VTR system applied to the present embodiment.

[0030]

The VHS compatible speed mode is NTSC (National Tel
evision System Committee), but the speed of the HS mode (high-speed mode) of the D-VTR system is the same as the speed of the SP mode (standard playback mode) for the VHS, but the track width of the SP mode is 58 μm, so C
The recording mode can be determined by measuring the period of the TL (control) signal. For STD mode (standard mode), VHS compatible LP mode (standard speed 1)
/ 2x speed mode), but basically NTSC SP
And EP (1/3 times the standard speed) are defined. In this case, too, it can be determined by measuring the CTL signal. For example, Japanese Patent Application Laid-Open No. 8-249758 discloses a technique in which the SP mode and the EP mode have a high possibility of analog recording, and the LP mode has a high possibility of digital recording. In the LS mode (low-speed mode) of the D-VHS system, each mode is low-speed and has a different speed, so that the recording mode can be determined by measuring the CTL signal.

VHS audio AFM recording and D-VHS recording are:
Both are performed with a head having an azimuth of ± 30 degrees. Since the frequency spectrum of the reproduced signal is as shown in FIG. 4, it can be determined by using a band-pass filter (BPF) or a high-pass filter (HPF). . The discriminating unit using this filter is the discriminating unit 11 of the information signal processing device shown in FIG.
FIG. 5 shows an example of this block configuration. Since a video signal and an AFM audio signal are not always recorded together on an analog recording tape, both the video signal and the AFM audio signal are detected in the example of FIG.

As shown in FIG. 4, the AFM signal is 1.3 MHz and 1.7 MHz.
Since there is a carrier signal of MHz, the filter 1 shown in FIG. 5 is a bandpass filter (BPF) having a passband castle of about 0.5 to 2.5 MHz or a lowpass filter of about 2.5 MHz.
The signal is filtered by the (LPF), detected by the detection unit DET1, and detected by the comparator CO1 to a signal equal to or higher than the predetermined reference voltage R1.

If digital recording has been made,
Since the spectrum for digital recording exists in this band, a bandpass filter (BPF) with a pass band of 4 to 5 MHz, which seems to have the largest power spectrum of the digital signal
Alternatively, the signal can be filtered by a filter 3 of a high-pass filter (HPF) of about 4 MHz or more, detected by a detection unit DET3, and detected by a signal of a predetermined reference voltage R3 or more by a comparator CO3. Similarly, the filter processing is performed by the filter 2 of the high-pass filter (HPF), the detection processing is performed by the detection unit DET2, and the video signal can be detected by the signal of the predetermined reference voltage R2 or more by the comparator CO2. And D
-Because it is recorded by a magnetic head with a azimuth angle different from that of a VHS digital signal by ± 6 degrees, even if it is digitally recorded, the detected component reproduced by this head is not so large. By inputting the detection outputs of the above three filters to the system controller 12, it is possible to determine whether the recording is analog recording or digital recording.

[3] Description of Operation of Overall Configuration by Flowchart Next, an example of the operation of the information signal processing apparatus according to the present invention having the above-described configuration will be described with reference to the flowchart shown in FIG. Here, in order to facilitate understanding, a magnetic tape is used as a recording medium, and a tape in which an analog recording method and a digital recording method are mixed as an attribute is detected by an analog recording method or a digital recording method on a reproducing side. A case where editing and recording are performed with priority given to the method will be described.

Starting from step ST1, an initial value n = managed in step ST2 for managing the number of processing loops.
Set 0. In step ST3, the determination unit 11
It is determined whether or not the cassette on the copy / edit recording side is a cassette having characteristics capable of digital recording, and step S
If the cassette cannot be digitally recorded in T4, a warning is issued to the warning section 17 in step ST5 to inform the user that the tape can be used only for analog recording. If the user determines that the cassette is acceptable, the process proceeds to the next step ST7 without exchanging the cassette in step ST6. When the user replaces the cassette, the user replaces the tape with the tape head unit 3 and returns to step ST3 to repeat the cassette detection.

In the processing from step ST7 to step ST8, the cassette on the reproduction (PB) side and the recording (REC) side is rewound to the tape top by the reel motor unit 1 or the capstan unit 2. In ST9, the reproduction side tape is set to the reproduction mode. In step ST10 and step ST11, the system controller 12 detects a user command, and the user sets in advance in the user input unit 19 a copy of whether to record the analog recording method first or the digital recording method first. The priority recording method for recording / editing recording is determined. If the system controller 12 determines that the digital recording method has priority in step ST11, the process proceeds to step S11.
At T12, the discriminating unit 11 determines the attribute of the reproduced signal that is sequentially reproduced. If it is determined at step ST13 that the signal is of the analog recording type, the tape is run (FF) first at step ST15, and at step ST19, Step S
A digital recording section is detected in a loop of T12.

If it is determined in step ST13 that the digital recording system is selected, the switches SW1 and SW2 are switched to the digital reproduction processing section 6 by the system controller 12, and digital reproduction processing is performed in step ST14. In step ST16, digital reproduction processing is performed in step ST3. It is determined whether or not the detected cassette on the recording side can perform digital recording. If digital recording cannot be performed, the switches SW3 and SW4 are switched to the analog recording processing unit 7 by the system controller 12, and analog recording is performed in step ST18. . If digital recording can be performed, step S
Digital recording is performed in T17, and attribute determination of the reproduction signal and tape end detection are performed from step ST19 to step ST1.
When the tape end is reached, n initially set in step ST20 is set to n = n + 1.
When the digital recording is completed, the process proceeds to the analog recording process from step ST22. In step ST21, it is determined whether copy recording and editing recording have been completed after the tape end has come twice.

If the system controller 12 determines that the priority recording mode is the analog recording mode in step ST11, the attribute of the reproduced signal is determined in step ST22, and in step ST23, the analog or digital recording is performed by the determination unit 11. In the case of the analog recording method, the switches SW1 and SW2 are switched to the analog reproduction processing section 5 by the system controller 12 by the system controller 12 in step ST24 to perform analog reproduction (PB) processing. Detection is performed, and the operation is repeated from the step ST22 to the step ST27 until the end of the tape in the loop process. Step ST2
In step 3, if the discrimination unit 11 discriminates the digital recording system, the system controller 12 discriminates the attributes while the tape is forward-running in step ST25, and determines the analog recording section in the processing loop from step ST27 to step ST22. To detect. Step ST2
If the tape end is determined in step 7, the initially set n
Is set to n = n + 1. In step ST29, it is determined whether the tape end has been performed twice and all copy recording and editing recording have been completed, and if not completed, step ST12 is performed.
The processing shifts to digital recording processing. When all copy recording and editing recording processes have been completed, the process stops in step ST30.

[4] Examples of Various Edit Copies Next, an example in which various edit copies are performed using the information processing apparatus shown in FIG. 1 will be described. (1) Example of application to edit copy recording of the same type of VTR type tape First, the case of edit copy recording of the same type of VTR type tape will be described. That is, as shown in Table 4, VHS and V
This is the case with HS double decks and 8mm and 8mm double decks. Here, S-VHS is an abbreviation for super video home system.

[0041]

First, an example in which an edit copy is performed using the D-VHS system as an example will be described.
The present invention can also be applied to a system that uses a recording medium in which different recording methods are mixed, such as a recording and reproducing method and other digital recording methods and an analog recording method.

As shown in FIG. 7A, when there is an original magnetic tape in which analog recording sections A and C of VHS and digital recording sections B and E of D-VHS are mixed in a complicated manner, FIG. As shown in B), the analog recording units A and C automatically copy and record continuously, and the digital recording units B and E automatically copy and record automatically. When editing and recording are performed in this manner, if this tape is played back on a device that is not a D-VHS compatible deck, the portion that is played back and the portion that is not played back as shown in FIG. Will not appear on the
Further, when the tape on which the editing and recording have been performed is further edited and recorded, it can be efficiently performed.

FIG. 7C shows a case where the recording order of the digital recording units B and E is changed without changing the analog recording units A and C in FIG. 7B. FIG. 7D shows a case where the analog recording units A and C in FIG. 7B are edited and recorded after the digital recording units B and E.

FIG. 7E shows the analog recording section of FIG.
This is a case where an insertion signal Z such as a silent recording section or a predetermined signal is recorded between A and C and digital recording sections B and E. For example, if the insertion signal Z is recorded as a warning signal in a video and / or audio format using an analog recording method in the form of a warning signal to notify the user that digital recording is to be performed after the analog recording section C, then D -When playing back on a device that is not a VHS compatible deck, even if the digital recording sections B and E are not played after the analog recording section C ends, the playback image or sound is suddenly output due to the playback of this warning signal. It is possible to prevent the user from mistakenly re-recording the image by considering it as a non-recorded portion.

Such a warning signal is not limited to this example, and may be recorded between an analog recording section and a digital recording section in another embodiment. Video and audio signals may be automatically recorded between the recording unit and the digital recording unit to inform the user that the boundary is the recording area. By doing so, each of the recording portions A, C, B, and E can be easily identified as one program area. Also, in the case where such a program portion is repeatedly reproduced, the operation is easy and efficient reproduction can be performed.

FIG. 8A shows the analog recording section of FIG.
This is the case where the order of A and C is reversed. As described above, it is possible to determine the recording method of a predetermined recording portion of the original magnetic tape, change the order, and perform the editing recording.

FIG. 8B shows a case where only the digital recording portion of the original magnetic tape shown in FIG. 7A is detected and edited and recorded. FIG. 8C shows the result of editing and recording by changing the order of the digital recording units B and E in FIG. 7B.

FIG. 8D shows an automatic video and audio signal which informs the user that there is a boundary Y between the digital recording sections B and E, which indicates the boundary between the non-recording or the recording section of the predetermined signal. It is to be recorded. These FIGS. 8B to 8
In the example of (D), only the digital recording section is detected and edited and recorded from the magnetic tape in which the analog recording section and the digital recording section are mixed. However, only the analog recording section is detected and the above described FIG. Edit recording may be performed in the same manner as in FIG.

In the above description of the embodiment, the analog recording section performs the analog recording and the digital recording section performs the digital recording even in the edit recording / copy recording. However, the digital recording is performed due to a copyright (copyright) problem. You may not be able to do that. In such a case, as shown in FIG. 8 (E), an identification signal recorded on a predetermined portion of the magnetic tape is detected. It is on record. FIG. 8 (F)
FIG. 8E shows a case where the recording order is changed in the recording sections B and E in FIG.

FIG. 9A shows a case where B and E corresponding to the digital recording section in FIG. 8E are edited and recorded before analog recording A and C. FIG. 9 (B) shows that analog recording sections A and C perform copy recording as they are, digital recording B and E are analog recording, and the last of C and the first of B at the boundary corresponding to the analog recording section and the digital recording section. In the meantime, video and audio signals such as a warning signal R indicating that the digital recording units B and E have been edited and recorded by using a copyright, for example, by analog recording, are recorded in an analog system. By doing so, the user can recognize even if the digital recording section is lost on the tape on which the editing and recording have been performed, so that management is easy. In addition, the copyright is automatically determined, and when digital recording is not possible, the digital recording section is changed to analog recording so that editing and recording can be performed automatically, so that editing and recording can be performed efficiently and effectively.

FIG. 9C shows the result of editing and recording by changing the order of B and E corresponding to the analog recording sections A and C and the digital recording section shown in FIG. 8E. FIG. 9 (D) is the same as FIG. 9 (A)
Are edited and recorded by changing the order of the analog recording sections A and C. As will be described later in the block configuration example, for example, when the mounted cassette is a cassette tape having a characteristic that digital recording cannot be performed, when a digital recording section is detected on the reproducing side, a warning is issued to the user and an automatic operation is performed. As shown in FIGS. 8 (E) to 8 (F) and FIGS. 9 (A) to 9 (D), all sections are analog-recorded to perform copy recording and editing recording. May be.

(1) Example of application to editing copy recording of tapes of different VTR systems Next, when applied to editing copy recording of tapes of different VTR systems, that is, as different VTR systems in which analog recording and digital recording are mixed, For example, the VHS system and the 8 mm system can be considered. Here, considering the case where the present invention is applied to a double deck of the VHS system and the 8 mm system, the analog recording described above corresponds to the VHS standard (or S-VHS) or 8 mm (standard or high 8) standard recording, For digital recording, there are D-VHS standard format or digital high 8 format. As the correspondence between the edit recording and the copy recording in this example, the modes shown in Table 5 below can be considered.

[0054]

[5] Example of First Modification In the above description, for example, digital recording is automatically performed when copyright is possible, and analog recording is performed when copyright is not possible. As a first modification, the user may unify analog recording in advance to copy, edit, and record. In the case where the original tape to be subjected to copy recording and editing recording is a tape in which the recording methods are mixed, the recording method is determined by the determination unit 11 shown in FIG. When editing and recording, the recorded tape is not compatible with digital playback.
It is very efficient because it can be reproduced without any problem even in R. The following is an example of a case in which analog recording is standardized, divided into a case of the same VTR cassette system and a case of a different VTR cassette. Table 6 shows the editing and copy recording methods in the case of the same VTR cassette method.

[0056]

Table 7 shows double deck editing and copy recording methods for different VTR cassettes.

[0058]

[6] Illustrative Example of Second Modification As a second modification, the attribute of the signal is such that the number of channels of the audio signal on the reproduction side and the recording side such as monaural and stereo, the number of samplings of the digital audio signal, and the quantization The number of bits can be considered. For example, when recording, editing, and recording a recording medium in which stereo audio and analog audio signals are mixedly recorded, stereo audio signals and analog audio signals are automatically recorded together in a predetermined section.

By recording in this way, it is possible to enjoy audio output without any uncomfortable feeling at the time of reproduction, and it is also possible to efficiently sort, organize, and manage cassette tapes and the like. For example, there is a method shown in Table 8 as a method of copying and editing and recording when the number of audio signal channels is different.

[0061]

When the audio signal is a digital audio signal and the sampling frequency is, for example, 48 KHz and 32 KHz are mixed, or when the quantization bit number is 16 and 12 bits, copy recording is performed. When editing and recording, the attributes are collectively recorded. By performing in this way, for example, the V of the consumer digital VCR standard (DV standard)
When applied to TRs, etc.
(After-recording) can be performed, so that in the case of a tape in which such attributes are mixed, copy recording and editing recording tape can efficiently perform after-recording. The determination of the sampling frequency, the number of quantization bits, and the like can be easily performed by detecting predetermined identification data in the header of the recording signal, for example, in the digital reproduction processing unit in FIG. The above contents are summarized in Tables 9 and 10. Table 9 shows the case of the method of copying, editing and recording according to the sampling frequency of the audio signal. Table 10 shows the case of the copying, editing and recording method based on the quantization bit number of the audio signal.

[0063]

[0064]

[7] Example of Third Modification As a third modification, copy recording and editing recording may be performed by determining, for example, the transmission rate of digital recording as a signal attribute. For example, from Table 5, D-VHS method V
TR has a plurality of transmission rates, and when performing copy recording and editing recording on a tape with a mixture of these transmission rates, the recording side regularly collects and records signals of the same rate in a predetermined section, and further In the case of editing, etc., work can be performed efficiently. The transmission rate can be easily detected by detecting the identification data recorded at a predetermined position of the header of the recording data. Also, D-VH
As shown in Table 5 above, since the tape speed differs for each recording mode for the S system, the mode can be determined by observing the CTL signal, and the rate of the recorded data can also be determined from the determination result. it can. Table 1
1 is a copy / edit / record method (D-VHS
Case).

[0066]

Here, for example, STD mode (standard mode) and L
When there is a tape in which S mode (low speed mode) is mixedly recorded, the tape may be automatically recorded by unifying to STD mode which is a standard recording mode. By automatically performing copy recording and editing recording in a unified manner as described above, the recorded tape can be reproduced in all sections without any problem even in a device that does not support the LS mode.

[0068]

As described above, according to the information signal processing apparatus and the information signal processing method according to the present invention, the same applies to the case of performing copy recording or editing recording of a signal on a recording medium in which recording methods are mixed. Since the signals of the recording method are recorded continuously, for example, when the recorded recording medium is reproduced by a device that supports only one recording method, the reproduced part and the unreproduced part are complicated and frequently. No longer appear on the screen, and can be played efficiently.

Since a predetermined signal is recorded / reproduced in a section between portions having different recording methods, a reproducing operation is continuously performed by a device which supports only one recording method.
Even when the recording section does not correspond to the apparatus, it is possible to know that the recording section does not correspond to only a predetermined section, and it is possible to use the apparatus efficiently. Furthermore, when copying and recording on a recording medium such as a recorded tape or editing and recording, signals of the same recording method are continuously recorded, so that the operation can be performed efficiently. In addition, it has become easier to manage and organize recording media.

[Brief description of the drawings]

FIG. 1 is an overall block diagram showing a configuration of an information signal processing device according to the present invention.

FIG. 2 is a conceptual diagram schematically showing a concept of a front panel surface of the information signal processing device shown in FIG.

FIG. 3 is a conceptual diagram of a tape used in the information signal processing device shown in FIG.

4 is a conceptual diagram of a power spectrum of a reproduced signal in the information signal processing device shown in FIG.

FIG. 5 is a block diagram showing a specific configuration of a determination unit in the information signal processing device shown in FIG.

FIG. 6 is a flowchart illustrating the operation of the information signal processing device shown in FIG. 1;

FIGS. 7A and 7B are conceptual diagrams showing an editing copy mode in the information signal processing apparatus shown in FIG. 1, wherein FIG. 7A is a configuration of an original magnetic tape, and FIGS. FIG. 8 is a conceptual diagram showing a case where the arrangement of a unit and a digital recording unit are changed and copied.

FIG. 8 is a conceptual diagram subsequent to FIG. 7, showing a mode of editing copy in the information signal processing device shown in FIG. 1, and FIGS.
The figure is a conceptual diagram showing a case where the arrangement of the analog recording unit and the arrangement of the digital recording unit are changed and copied.

FIG. 9 is a conceptual diagram subsequent to FIG. 8, showing a mode of editing copy in the information signal processing device shown in FIG. 1, and FIGS.
The figure is a conceptual diagram showing a case where the arrangement of the analog recording unit and the arrangement of the digital recording unit are changed and copied.

10A and 10B are conceptual diagrams conceptually explaining a conventional edit copy, in which FIG. 10A is a conceptual diagram showing a configuration of an original magnetic tape, and FIG. 10B is a conceptual diagram showing a configuration after copying.

[Explanation of symbols]

1; reel motor section, 2; capstan running section, 3;
Tape / head section, 4; reproduction amplifier section, 5; analog reproduction processing section, 6; digital reproduction processing section, 7; analog recording processing section, 8; digital recording processing section, 9;
10: tape / head section, 11: discriminating section, 12; system controller, 13; display section, 14; CTL section, 1
5; cassette detection unit 16; cassette detection unit 17; warning unit 18; capstan unit 19; user input unit
20; cassette insertion slot, 21; cassette insertion slot, 22;
Scale display section, 23; time display section, 24; playback display section, 2
5; record display section; 26; tape body; 27; identification hole; 28; identification hole, SW1: changeover switch, SW
2: Changeover switch, SW3: Changeover switch, SW4: Changeover switch

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G11B 27/02 A F term (Reference) 5C018 AA04 AA05 AB05 DA01 DC01 EA04 HA05 JA01 5C053 FA15 FA21 5D044 AB05 AB07 BC01 CC01 DE15 DE44 DE49 EF05 EF07 HL07 HL14 5D110 AA04 AA26 AA28 CA05 CA06 CB01 CF02 CF05 CF11 CK05

Claims (16)

[Claims] 1. An information signal processing apparatus for copying or editing the contents of a first recording medium on which signals having different attributes coexist on a second recording medium, wherein a predetermined signal of the signals recorded on the first recording medium is Determining means for determining an attribute; reproducing means for reproducing a signal from the first recording medium in accordance with the determined attribute; recording means for recording a signal on the second recording medium in a predetermined recording format; Recording control for controlling the recording means so as to record a signal in a predetermined section from the reproducing means in a predetermined section in the predetermined recording mode corresponding to the predetermined attribute, in accordance with a result of the determination from the determination means. And an information signal processing device. 2. The information signal processing device according to claim 1, wherein the first and second recording media are tape-shaped magnetic recording media. 3. The information signal processing device according to claim 1, wherein the predetermined recording method is one of an analog recording method and a digital recording method. 4. The information signal processing apparatus according to claim 1, wherein the attribute is determined to be an analog recording system or a digital recording system. 5. The information signal processing apparatus according to claim 4, wherein the determination of the attribute is performed based on the number of channels, the sampling frequency, or the number of quantization bits of the audio recording signal when the digital recording method is used. 6. The information signal processing device according to claim 4, wherein the determination of the attribute is performed based on a recording modulation method in a case of a digital recording method. 7. The information signal processing device according to claim 1, wherein the determination of the attribute is performed based on a recording rate or a transmission rate of a signal recorded on the first recording medium. 8. The information signal processing apparatus according to claim 1, wherein the control of the recording means causes signals of the same attribute to be recorded on the second recording medium as continuously as possible. 9. An information signal processing method for copying or editing contents of a first recording medium in which signals having different attributes are mixed on a second recording medium, wherein a predetermined signal of the signals recorded on the first recording medium is Determining an attribute; reproducing a signal from the first recording medium in accordance with the determined attribute; and, in accordance with the determination result, causing a signal in a predetermined section from the reproduction to correspond to the predetermined attribute. (2) An information signal processing method, wherein recording is controlled so that recording is performed in a predetermined section by a predetermined recording method on a recording medium. 10. The information signal processing method according to claim 9, wherein said first and second recording media are tape-shaped magnetic recording media. 11. The recording method according to claim 9, wherein the predetermined recording method is one of an analog recording method and a digital recording method.
2. The information signal processing method according to 1. 12. The information signal processing method according to claim 9, wherein the attribute is determined to be an analog recording method or a digital recording method. 13. The information signal processing method according to claim 12, wherein the determination of the attribute is performed based on the number of channels, the sampling frequency, or the number of quantization bits of the recording signal when a digital recording method is used. 14. The method according to claim 12, wherein the determination of the attribute is performed based on a recording modulation method in the case of a digital recording method.
2. The information signal processing method according to 1. 15. The information signal processing method according to claim 9, wherein the determination of the attribute is performed based on a recording rate or a transmission rate of a signal recorded on the first recording medium. 16. The information signal processing method according to claim 9, wherein the control of the recording means is such that signals of the same attribute are recorded as continuously as possible on the second recording medium.