JP2001060380A - Information recording device and method, and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To record efficiently data of which attribute is different. SOLUTION: An input signal discriminating section 58 discriminates attribute of a signal inputted from a switch 33. A reproduced signal discriminating section 57 discriminates the attribute of the reproduced signal inputted from an amplifier 47. A system controller 59 compares a discriminated result of the input signal discriminating section 58 with the discriminated result of the reproduced signal discriminating section 57. And in accordance with the compared result, a magnetic tape is traveled to a prescribed recording region, and recording is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording apparatus and method, and a recording medium, and more particularly, to a method for efficiently and effectively transferring data having different attributes such as analog data or digital data to a magnetic tape. The present invention relates to an information recording apparatus and method for recording information, and a recording medium.

[0002]

2. Description of the Related Art Recently, home video tape recorders (hereinafter referred to as VTRs) for recording television broadcasts, etc.
Recorder) has become widespread. Since television broadcasting is being switched from conventional analog broadcasting to digital broadcasting, a digital recording VTR that can record digital broadcasting
Is spreading. According to this digital recording method, since a digital broadcast signal can be digitally recorded as it is, there is no deterioration in image quality and sound quality, and reproduction with high characteristics can be enjoyed.

Generally, an analog VTR is 8 mm
(Trademark) type and VHS (Video Home System) (trademark) type VTRs are known, and tapes of respective types are used as recording media for these VTRs.
It should be noted that analog 8mm tapes and VHS tapes, which are conventionally used, can be used in digital recording VTRs because of the common use of mechanisms such as tape running and the improvement of magnetic tape performance. Has been improved.

[0004]

By the way, when the VTR of digital recording becomes widespread, it is expected that the analog recording system and the digital recording system will coexist on the magnetic tape. Therefore, the user needs to know the recording mode of the magnetic tape at the time of recording. There is a need to.

FIG. 1 shows an example of a state of recording on a magnetic tape 1. Tape top of magnetic tape 1 (tape to
From p) to position b is signal recording section 2 in which recording has already been performed, and from position b to the tape end (tape en)
Until d), it is the unrecorded section 3 where no recording is performed.

For example, in a VTR, when the magnetic tape 1 shown in FIG. 1 is mounted, the rotary drum is rotated, and a head mounted on the rotary drum reproduces a signal recorded on the magnetic tape 1. Then, the recording mode is determined. When determining the recording mode, the magnetic tape 1
When the portion at the position a of the signal recording section 2 is loaded on the rotating drum, the recording signal can be reproduced, so that the recording mode can be determined. On the other hand, when the portion at the position c of the unrecorded section 3 of the magnetic tape 1 is loaded on the rotating drum, the signal to be reproduced is not recorded, so that the recording mode cannot be determined.

As described above, when recording is repeatedly performed on the magnetic tape 1 in an arbitrarily set recording mode in a state where the recording mode cannot be determined, as shown in FIG. There is a possibility that the digital recording areas 12 are complicatedly mixed. When the magnetic tape 1 in the state of FIG. 2 is reproduced by a VTR that can reproduce only analog recording signals, the analog recording area 11 can be reproduced, but the digital recording area 12 cannot be reproduced. There was an issue missing on the way.

Therefore, it is conceivable to use a tape exclusively for analog recording and a tape exclusively for digital recording.
The user may erroneously perform recording in the digital recording mode on a tape dedicated to analog recording.

Further, when the dedicated tape is provided, the number of tapes is increased more than necessary, and it becomes difficult to manage the tape cassette.

The present invention has been made in view of such a situation, and separates an analog recording area from a digital recording area so as to prevent signals of different recording modes from being recorded in a complicated manner, and to prevent a video or video signal from being recorded. Recording or reproduction is performed without losing continuity of audio. Further, the present invention allows a user to perform recording without being conscious of a recording mode, thereby facilitating management of a tape cassette.

[0011]

According to the present invention, there is provided an information recording apparatus comprising: an input signal discriminating unit for discriminating an attribute of input data; a signal recorded on a recording medium;
A reproduction signal determining unit for determining the attribute, an attribute determined by the input signal determining unit, and an attribute determined by the playback signal determining unit are compared.
Control means for controlling the input data to be recorded in a predetermined recording area.

The input signal determining means determines whether the input data is analog data or digital data, and the reproduced signal determining means determines whether the recorded signal is analog data or not. It can be determined whether the signal is a recording signal, a digital recording signal, or no recording.

[0013] The control means may further correspond to whether the use mode is a first mode in which signals having different attributes are not mixed or a second mode in which signals having different attributes are mixed. Then, recording can be controlled.

[0014] The recording medium may be a magnetic tape, and may be divided into an analog recording area and a digital recording area.

An information recording method according to a fifth aspect of the present invention includes an input signal determining step of determining an attribute of input data;
A signal recorded on a recording medium is reproduced, and a reproduced signal discriminating step for discriminating the attribute is compared with the attribute discriminated by the processing of the input signal discriminating step and the attribute discriminated by the process of the reproduced signal discriminating step. And controlling the input data to be recorded in a predetermined recording area in accordance with the comparison result.

According to a sixth aspect of the present invention, there is provided a recording medium program comprising: an input signal determining step of determining an attribute of input data; and a reproduced signal determining step of reproducing a signal recorded on the recording medium and determining the attribute. And comparing the attribute determined by the processing of the input signal determination step with the attribute determined by the processing of the reproduction signal determination step, and, according to the comparison result, input data into a predetermined recording area. And a control step of controlling the recording to be performed.

An information recording apparatus according to claim 1, and an information recording apparatus according to claim 5.
In the information recording method described in the above, the attribute of the input data is determined, the attribute of the signal recorded on the recording medium is determined, and the attribute of the input data is stored in the recording medium. The attributes of the recorded signal are compared with each other, and the input data is recorded in a predetermined recording area in accordance with the comparison result.

[0018]

Embodiments of a VTR according to the present invention will be described below with reference to the drawings. At first,
The allowable recording mode for each type of tape will be described with reference to FIG. Although a standard VHS tape cannot perform digital recording, an S-VHS (Super-VHS) tape that achieves high image quality in the VHS standard can perform digital recording. In addition, D-VHS (Dig
The ital-VHS) tape has a high coercive force and can perform not only digital recording but also analog recording. Generally, analog recording is performed on an S-VSH tape, and digital recording is performed on a D-VSH tape. Therefore, in the present invention, when the D-VHS tape or S-VHS tape is mounted on the VTR, one of digital recording and analog recording,
Alternatively, both (mixed recording) are performed, but in the case of a VHS tape, only analog recording is performed.

As shown in FIG.
When the S-VHS tape identification hole 22 or the D-VHS tape identification hole 23 is formed, it is possible to identify whether it is an S-VHS tape or a D-VHS tape. If they are not formed, it can be identified as a VHS tape. Thus, analog recording, digital recording, or recording in which both are mixed can be used properly.

When mixed recording is performed on an S-VHS tape or a D-VHS tape, each time information is recorded, the user selects whether to perform digital recording or analog recording.

Next, the principle of the magnetic tape of the present invention will be described with reference to FIG. FIG. 5 shows, for example, the S
In the P mode (standard playback mode), the magnetic tape 1 capable of recording for 120 minutes is the analog recording area 1 for the first 60 minutes (the section from the tape top to the position b).
The digital recording area 12 is set to a recording area in the latter half 60 minutes (a section from the position b to the tape end). In this example, the analog recording area 11 and the digital recording area 12 from the position c to the tape end are in a state where nothing is recorded, and the digital signal is already recorded in the section 12A from the position b to the position c. Have been.

Next, the use mode according to the present invention will be described below. Recording on the magnetic tape 1 includes a mode A in which the analog recording area 11 and the digital recording area 12 are not mixed, and a mode B in which the analog recording area 11 and the digital recording area 12 are mixed.

First, the mode A will be described. In this mode, the analog recording area 11 and the digital recording area 1
In the case where predetermined data in a different recording mode is recorded, a warning is presented and the tape cassette 21 is ejected. The message as to whether or not to shift to the mode B is displayed on the LCD (Liquid
(Crystal Display) and selected by the user.

For example, when recording is started from the position a in FIG. 5, since no signal is recorded there, the recording mode cannot be determined. Therefore, the position a is stored, and on the magnetic tape 1, rewinding (rewinding) or fast-forwarding is performed to a portion where a signal is recorded. Then, when the tape is run at a high speed, a signal recording portion is found, and a signal having the same attribute as the data to be recorded is recorded therein, recording is permitted. On the other hand, when a signal having an attribute different from the data to be recorded is recorded in the signal recording portion, the tape cassette 21 is ejected or a warning is presented.

Next, the mode B will be described. In this mode, the analog recording area 11 and the digital recording area 1
5, the recording area (section) of the magnetic tape 1 is divided, one section is an analog recording area 11 and the other section is a digital recording area 12 as shown in FIG.
It is said.

For example, when the recording is started at the position a in FIG. 5, if the data to be recorded is analog data, the recording is permitted. On the other hand, when the data to be recorded is digital data, recording can be performed in a section of the digital recording area 12 after the position b of the digital recording area 12. However, the digital recording area 12A
Since the digital data is already recorded in a part of the magnetic tape 1, the magnetic tape 1 runs to the position c, and the recording is performed from the position c.

The signal in the digital recording area 12A is reproduced to notify the user that the data has already been recorded. If the user determines that the data in the digital recording area 12A is unnecessary data, the position b It is also possible to record (overwrite) from.

In the example of FIG. 5, the magnetic tape 1 capable of recording for 120 minutes in the SP mode is divided into an analog recording area 11 and a digital recording area 12 every 60 minutes. It can be set arbitrarily.

FIG. 6 is a block diagram showing a configuration example of a VTR to which the present invention is applied. The antenna 31 receives a digital broadcast or an analog broadcast, and supplies the received signal to the tuner 32. The tuner 32, based on a command from the system controller 59, selects a signal of a predetermined transmission channel (a transmission channel including a broadcast channel instructed by the system controller 59) from a received signal of a broadcast wave from the antenna 31. (Referred to as a tuner system input signal). In addition, the VTR receives data (hereinafter, referred to as line input signals) transferred via a network such as a local area network or the Internet based on a command from the system controller 59.

The switch 33 is connected to the system controller 5
9, when receiving a tuner-based input signal, the terminal is switched to select terminal a, and when receiving a line-based input signal, the terminal is switched to select terminal b. Is supplied to the switch 34 and the input signal determination unit 58. The switch 34 is switched so as to select the terminal a when the input signal is analog data and to select the terminal b when the input signal is digital data based on a command from the system controller 59.

The analog recording processor 35 includes a switch 33
Then, predetermined video signal processing and audio signal processing required for recording are performed on the analog input signal input via the switch 34. The digital recording processing unit 36 performs predetermined video signal processing and audio signal processing required for recording, such as error correction code addition and band compression signal processing, on the digital input signal input via the switches 33 and 34. I do.

The switch 37 is connected to the system controller 5
When inputting data from the analog recording processing unit 35, the terminal a is switched to select the terminal a based on the instruction. When inputting data from the digital recording processing unit 36, the terminal b is selected. The switching is performed, and the video data or the audio data is output to the amplifier 38. The amplifier 38 converts the input video data or audio data into
The signal is amplified so that a recording signal of a predetermined level is output, and is supplied to a corresponding head of the rotating drum 39. As a head, at least a head for recording and reproducing digital data (D-VHS head), a head for recording and reproducing analog video signals (video head), and a head for recording and reproducing two channels of analog audio signals (AFM (Audio Fr
(EquencyModulation) head) (both are not shown).

The head of the rotating drum 39 records a recording signal on the magnetic tape 1 or reproduces a recording signal on the magnetic tape 1 based on a command from the system controller 59. At this time, the reels incorporated in the tape cassette 21 are mounted in advance on the reel drive units 40A and 40B rotated by the reel motor 42, and the tape cassette 2
1, the magnetic tape 1 is pulled out, and the magnetic tape 1 is wound around a rotating drum 39.

The reel motor drive section 43 supplies a predetermined drive control signal to the reel motor 42 based on a command from the system controller 59. Reel motor 42
Drives (rotates) the reel drive units 40A and 40B based on the input drive control signal. FG (Frequency G
enerator) The detectors 41A and 41B are
A and 40B, respectively, and the reel drive unit 4
0A and 40B are detected, and the system controller 5
9.

When a signal is recorded on the magnetic tape 1 by the D-VHS method or the VHS method, the CTL (Control) signal detecting section 44 detects a CTL signal recorded at the lower end thereof and outputs the CTL signal. Input to the measuring unit 45. CTL signal measurement unit 45
Measures the tape transfer speed from the cycle of the input CTL signal (the CTL signal is recorded at one frame cycle (rotation cycle of the rotating drum 39)) and outputs the measurement result to the system controller 59. .

The eject section 46 ejects the mounted tape cassette 21 from the main body based on a command from the system controller 59.

A reproduced signal reproduced from the head of the rotating drum 39 is supplied to an amplifier 47. The amplifier 47 amplifies the input reproduction signal so that a reproduction signal of a predetermined level is output, and supplies the reproduced signal to the switch 48 and the reproduction signal determination unit 57. The switch 48 is switched to select the terminal a when the reproduced signal is an analog signal, and to select the terminal b when the reproduced signal is a digital signal, based on a command from the system controller 59.

The analog reproduction processing section 49 performs predetermined reproduction video signal processing, reproduction audio signal processing, and the like on the input analog reproduction signal, and outputs video data to the switch 50, audio data to the switch 55, and the like. Output to

The reproduction equalizer 52 performs a predetermined equalization process on the input digital reproduction signal, and outputs the result to the digital reproduction processor 53. The digital reproduction processing unit 53
Error-correction processing and / or
Performs predetermined signal processing such as decoding of MPEG (Moving Picture Experts Group), and performs D / A (Digital to
alog) Output to the conversion unit 54. The D / A conversion unit 54 performs D / A conversion of the input data, and outputs video data to the switch 50 and audio data to the switch 55.

The switch 50 is connected to the system controller 5
9, when the input signal is a video signal from the analog reproduction processing unit 49, switching is performed to select the terminal a, and the input data is changed to the D / A conversion unit 5.
4 is switched to select the terminal b, and the video signal is changed to a CRT (Cathode Ray Tube) 5.
1 is output. When the input signal is an audio signal from the analog reproduction processing unit 49, the switch 55 is switched to select the terminal a based on a command from the system controller 59, and the input signal is subjected to D / A conversion. When the audio data is from the unit 54, the terminal b is switched to be selected, and an audio signal is output to the speaker 56. The CRT 51 displays an image corresponding to the input video signal, and the speaker 56 reproduces the input audio.

The reproduced signal discriminating section 57 discriminates whether the reproduced signal input from the amplifier 47 is an analog signal or a digital signal, and outputs the discrimination result to the system controller 59. Input signal discriminator 58
Determines whether the received signal input from the switch 33 is an analog signal or a digital signal, and outputs the determination result to the system controller 59.

The system controller 59 controls the switch 48 based on the input from the reproduction signal discrimination section 57, controls the switch 34 based on the input from the input signal discrimination section 58, and controls the switch 34 from the CTL signal measurement section 45. Control the reel motor drive unit 43 based on the input from the user, and based on a command from the user input via the input unit 62,
Other parts are controlled. The system controller 59 also determines, based on the input from the reproduction signal discriminating unit 57, that the commanded use mode and the attribute of the recording signal already recorded on the magnetic tape 1 do not match (described later). When the mixture is not allowed), the alarm sound generator 6
0, controls the warning display unit 61. The warning sound generation unit 60
A warning sound that warns the user is generated, and a warning display 61
Displays a message such as "use mode is not suitable".

The input section 62 is operated by the user, and outputs a command corresponding to the operation to the system controller 59.

The reproduction signal discrimination section 57 is configured, for example, as shown in FIG. 7 (although not shown, the input signal determination section 58 has the same configuration as the reproduction signal determination section 57). Among the reproduced signals output from the amplifier 47, the AFM
The reproduced signal from the head is transmitted to a BPF (Bandpass-Filter) 7
1-1 is input. The BPF 71-1 converts the frequency of the AFM signal (from 0.5 MHz to 2.5
MHz). That is, as shown in FIG. 8, the carrier frequency of the AFM audio signal in the analog reproduced signal has a frequency band of 1.3 MHz or 1.7 MHz. The BPF 91-1 extracts this component and inputs it to the diode detector 72-1.

The diode detector 72-1 rectifies the input reproduced signal and inputs the rectified signal to the + input terminal of the comparator 73-1. The-input terminal of the comparator 73-1 includes:
A reference voltage Vcc is applied. Comparator 73-1
Compares the level of the rectified reproduction signal with the level of the applied reference voltage signal, and outputs a positive detection signal to the system controller 59 when the level of the reproduction signal becomes higher than the reference level.

The reproduction signal from the D-VHS head among the reproduction signals supplied from the amplifier 47 is input to the BPF 71-3. The BPF 71-3 converts a frequency band (4.0 MHz to 5.0M) of a digital signal from the input reproduced signal.
Hz) component. That is, as shown by the curve A in FIG. 8, among the reproduced signals, the digital signal has a frequency band of 0 MHz to 9.58 MHz, but the value near 4.8 MHz is the largest. Therefore, the BPF 71-3 extracts this and inputs it to the diode detector 72-3.

Further, of the analog reproduced signals output from the amplifier 47, the reproduced signal from the video head is:
It is input to BPF 71-2. The BPF 71-2 converts the frequency of the analog video signal (4.0
(MHz to 5.0 MHz), and input to the diode detector 72-2. Although the frequency bands extracted by the BPF 71-2 and the BPF 71-3 are the same, the AFM signal and the digital signal are recorded by a head having an azimuth angle of ± 30 degrees, while the analog video signal is recorded by ± 6. Recorded by a head with an azimuth angle of degrees. Therefore, the components of the digital signal reproduced by the video head are small.

Diode detector 72-2 or 72-3
Rectifies the input reproduced signal and outputs the rectified signal to the comparator 73-
2 or 73-3. The-input terminals of the comparators 73-2 and 73-3 have:
The reference voltage Vcc is applied and the comparator 73-
As in 1, the level of the rectified reproduction signal is compared with the level of the applied reference voltage signal. When the level of the reproduction signal becomes higher than the reference level, a positive detection signal is sent to the system controller 59. Enter each.

As described above, the BPF 71-1 is set to a frequency band for extracting AFM signals, and the BPF 71-2 is set to a frequency band for extracting many analog video signals (less digital video signals). The BPF 71-3 is set to a frequency band in which the power spectrum of the digital reproduction signal is maximized. Therefore, the system controller 59
Can determine from the detection results of the BPFs 71-1 to 71-3 whether the reproduced signal is an analog signal or a digital signal. A specific example will be described later.

In the above-described example, the necessary frequency band of the reproduced signal is extracted by using the BPF 71-1. However, the LPF that extracts the frequency band component of 2.5 MHz or less is used.
(Lowpass-Filter) may be used. Further, the necessary frequency band of the reproduced signal is extracted by using the BPF 71-2 or the BPF 71-3.
HPF (Highpass-
Filter) may be used.

Next, the operation of the embodiment of the VTR of FIG. 6 will be described with reference to the flowcharts of FIGS. In step S1, the user determines (confirms) whether or not the power of the VTR is turned on. If it is determined that the power is not turned on, the user operates the input unit 62 to turn on the power of the VTR. If it is determined in step S1 that the power of the VTR is on, the process proceeds to step S2, and the system controller 59 determines whether or not the command from the user input via the input unit 62 is the recording mode. If it is determined that the mode is not the recording mode, that is,
If it is determined that the mode is the reproduction mode, the process proceeds to step S3.

In step S3, the system controller 59 switches the VTR to the playback mode. The reel motor 42 rotates the reel driving units 40A and 40B based on the control of the system controller 59 input via the reel motor driving unit 43, and the head of the rotating drum 39 is recorded on the magnetic tape 1. Play the signal.

A reproduced signal reproduced from the head of the rotating drum 39 is supplied to an amplifier 47. The amplifier 47 amplifies the input reproduction signal to a predetermined level,
8 The switch 48 is switched to select the terminal a when the reproduced signal is an analog signal, and to select the terminal b when the reproduced signal is a digital signal, based on a command from the system controller 59. Hereinafter, a case where the reproduction signal is an analog signal will be described for simplicity.

The analog reproduction processing unit 49 performs predetermined reproduction video signal processing, reproduction audio signal processing, and the like on the input analog reproduction signal, and outputs a video signal to the switch 50 and an audio signal to the switch 55. I do. The switch 50 is operated based on a command from the system controller 59.
Since the input signal is a video signal from the analog reproduction processing unit 49, the input signal is switched to select the terminal a.
The video signal is output to the CRT 51. The switch 55 is switched to select the terminal a based on the command of the system controller 59 because the input signal is the audio signal from the analog reproduction processing unit 49, and the audio signal is output to the speaker 56. . The CRT 51 displays a video corresponding to the input video signal, the speaker 56 reproduces the input audio, and ends the processing.

If it is determined in step S2 that the command from the user input via the input unit 62 is the recording mode, the process proceeds to step S4, where the system controller 59 determines that the command from the input unit 62 is It is determined whether or not the selection of a line-based input signal input through a network such as a local area network and the Internet is instructed, and it is determined that the selection of the line-based input signal is not instructed, that is, If it is determined that the selection of the tuner-system input signal has been instructed, the process proceeds to step S5.

In step S5, the system controller 59 switches the switch 33 so as to select the terminal a in order to receive the broadcast wave from the antenna 31. Then, in step S6, the system controller 59 determines whether there is an abnormality in the tuner 32 (determines whether or not the broadcast wave is correctly received), and determines that there is an abnormality in the tuner 32. , Step S4
Returning to step S6, until it is determined that there is no abnormality in the tuner 32 (correct reception is performed)
The above processing is repeated.

If it is determined in step S6 that there is no abnormality in the tuner 32, or if it is determined in step S4 that selection of a line-related input signal has been instructed, the process proceeds to step S7.

In step S7, the input signal discriminating section 5
Reference numeral 8 inputs a line-system input signal or a tuner-system input signal, performs attribute determination as to whether the signal is an analog signal or digital data, and outputs a determination result to the system controller 59.

In step S8, the system controller 59 determines whether or not the tape cassette 21 is mounted on the VTR. If it is determined that the tape cassette 21 is not mounted, the process proceeds to step S9, where the system controller 59 proceeds.
Controls the warning sound generation unit 60 to generate a warning sound that warns the user. Alternatively, for example, a message such as “The tape cassette is not mounted or not correctly mounted” is displayed on the warning display unit 61.

In step S10, the system controller 59 determines whether or not a stop command has been input by the user via the input unit 62. If it is determined that no stop command has been input, the system controller 59 returns to step S7.
The above processing is repeated. If it is determined in step S10 that a stop command has been input,
Proceeding to 30, the system controller 59 controls each unit so as to stop the processing operation, and ends the processing.

In step S8, when the system controller 59 determines that the tape cassette 21 is mounted, the process proceeds to step S11, and determines the attribute of the recording signal of the magnetic tape 1 of the mounted tape cassette 21.

Here, the attribute discrimination processing of the recording signal of the magnetic tape 1 will be described with reference to the flowcharts of FIGS.

In step S51, the system controller 59 controls the reel motor 42 via the reel motor driving unit 43 to drive the reel driving units 40A and 40B, and also rotates the rotating drum 39 to rotate the mounted magnetic drum. The recorded signal on the tape 1 is reproduced. The system controller 59 includes, for example, a reel driving unit 40A,
Based on the rotation speed of the magnetic tape 1 and the thickness of the magnetic tape 1, the current position of the mounted magnetic tape 1 is detected, and the position is stored as an initial position P in a built-in memory. For details of the position detection method, see, for example,
No. 49143.

In step S52, the system controller 59 initializes variables n1 and n2 to 0. In step S53, the system controller 59
It is determined whether or not the current position of the magnetic tape 1 is the tape top. If it is determined that the current position is not the tape top, the system controller 59 controls the reel motor 42 via the reel motor driving unit 43 in step S54. Then, the magnetic tape 1 is caused to rewind.

If it is determined in step S53 that the current position of the magnetic tape 1 is the tape top, the process proceeds to step S55, where the system controller 5
9 is a reel motor 4 via a reel motor driving unit 43.
2 to drive the reel drive units 40A and 40B to run the magnetic tape 1 toward the tape end.

In step S56, the system controller 59 determines whether or not the current position of the magnetic tape 1 is at the tape end. If it is determined that the current position is not at the tape end, the process proceeds to step S60, where the system controller 59 A signal recorded on the magnetic tape 1 is detected.

In step S61, the CTL signal detecting section 44 determines whether or not a CTL signal is recorded at the lower end of the magnetic tape 1. If it is determined that no CTL signal is recorded, the process proceeds to step S55. Returning, the above-mentioned subsequent processing is repeated. In step S61, when determining that the CTL signal is recorded, the CTL signal detection unit 44 detects the CTL signal and outputs it to the system controller 59. In step S62, the CTL signal measurement unit 45
Measures the transfer speed of the magnetic tape 1 from the CTL signal detected in step S61.

Here, the transfer speed of the D-VHS tape will be described with reference to FIG. FIG. 14 shows a recording mode when the D-VTR performs recording on the D-VHS tape, and a transfer speed and a recording track width of the D-VHS tape corresponding to the recording mode.

The recording mode of the D-VTR is HS (High Speed)
Mode, STD (Standard) mode (or standard mode), and LS (Low Speed) mode. The LS mode is further divided into four types: LS2 mode, LS3 mode, LS5 mode, and LS7 mode. Tape transfer speed is 33.4mm / s in HS mode
It is 16.7 mm / s in the STD mode, 8.33 mm / s in the LS2 mode of the LS mode, 5.55 mm / s in the LS3 mode, and
3.33 mm / s, and in the LS7 mode,
38 mm / s. In the case of a D-VHS tape, the recording track width is 29 μm in any of the HS mode, the STD mode, and the LS mode.

The tape transfer speed in the HS mode of the D-VHS corresponds to the tape transfer speed in the SP (Standard Playing) mode (standard playback mode) of the VHS, and the tape transfer speed in the STD mode of the D-VHS. Supports tape transport speeds in VHS LP (Long Playing) mode (Long Playing Mode) (both are NTSC (National Television System)
Committee)). However, the recording track width in the SP mode is defined as 58 μm.

Further, in the VHS, in addition to the LP mode, an EP (Extend) is set as a tape transfer speed corresponding to the STD mode.
ed Playing) mode is defined. The tape transfer speed in the EP mode is defined as 11 mm / s.

Returning to FIG. 13, in step S62, the system controller 59 sets the CTL signal
The transfer speed of the magnetic tape 1 measured at 33 mm / s (D-
It is determined whether or not the tape transfer speed is VHS (HS mode tape transfer speed). If it is determined that the tape transfer speed is 33 mm / s, the process proceeds to step S63.

In step S63, the system controller 59 determines that the recording track width of the magnetic tape 1 is 58
μm (recording track width in SP mode of VSH) or 29μ
m (recording track width of D-VSH).
μm, the system controller 5
No. 9 determines in step S68 that the signal recorded on the magnetic tape 1 is a digital recording signal.

If it is determined in step S62 that the transfer speed of the magnetic tape 1 is not 33 mm / s,
Proceeding to step S67, the system controller 59
Further, the transfer speed of the magnetic tape 1 is 16 mm / s (D-VSH
(STD mode tape transfer speed), and if it is determined that the transfer speed of the magnetic tape 1 is 16 mm / s, the system controller 59 proceeds to step S
At 68, the signal recorded on the magnetic tape 1 is
It is determined that the signal is a digital recording signal.

If it is determined in step S67 that the transfer speed of the magnetic tape 1 is not 16 mm / s, the process proceeds to step S71, and the system controller 5
9 indicates that the transfer speed of the magnetic tape 1 is 11 mm / s.
(VSH EP mode tape transfer speed). If it is determined that the transfer speed of the magnetic tape 1 is not 11 mm / s, it corresponds to one of LS mode LS2, LS3, LS5 and LS7. Therefore, in step S68, the system controller 59 determines that the signal recorded on the magnetic tape 1 is a digital recording signal.

If it is determined in step S68 that the signal recorded on the magnetic tape 1 is a digital recording signal, in step S69, the system controller 59 determines the recording position of the digital recording signal detected in step S60. Pdn2 (from the recording start position to the recording end position of the digitally recorded area) is stored in the memory. In step S70, the system controller 59 increments the value of the variable n2 representing the number of recorded digital signals by 1, returns to step S55, and repeats the above-described processing.

In step S71, when it is determined that the transfer speed of the magnetic tape 1 is not 11 mm / s, in step S63, the recording track width is 58 μm.
m, the system controller 59
Determines in step S64 that the signal recorded on the magnetic tape 1 is an analog recording signal.

In step S65, the system controller 59 stores the recording position Pan1 of the analog recording signal detected from step S60 (from the recording start position to the recording end position of the analog recording area) in the memory. In step S66, the system controller 59 increments the value of the variable n1 representing the number of recorded analog signals by 1, returns to step S55, and repeats the above-described processing.

If it is determined in step S56 that the current position of the magnetic tape 1 is at the tape end, the process proceeds to step S57, and the system controller 59 determines the attribute of the magnetic tape 1 mounted.

The system controller 59 determines the variables n1,
If the value of n2 is 1 or more, it is determined that the magnetic tape 1 is a mixed tape. If the value of the variable n1 is 1 or more and the value of the variable n2 is 0, the magnetic tape 1 is analogized. When the value of the variable n2 is 1 or more and the value of the variable n1 is 0, it is determined that the magnetic tape 1 is a tape on which only digital signals are recorded. When it is determined that the values of the variables n1 and n2 are both 0, the magnetic tape 1 is determined as a non-recording tape.

In step S58, the system controller 59 controls the reel motor 42 via the reel motor drive unit 43, drives the reel drive units 40A and 40B, and causes the magnetic tape 1 to rewind. In step S59, the system controller 59 determines whether or not the current position is the initial position P stored in the memory. If it is determined that the current position is not the initial position P, the process returns to step S58. Until determined, the magnetic tape 1 is rewinded.

Further, another example of the attribute discrimination process of the recording signal of the magnetic tape 1 will be described with reference to the flowcharts of FIGS. FIG. 15 and FIG.
In the flowchart of FIG. 6, BPFs 71-1 to 71-
3 are referred to as filters 1 to 3, respectively.

In step S91, the system controller 59 detects the current position of the mounted magnetic tape 1 and stores the detected position as an initial position P in a built-in memory. In step S92, the system controller 59 initializes variables n1 and n2 to 0.
In step S93, the system controller 59
Determines whether the current position of the magnetic tape 1 is the tape top, and if it is determined that the current position is not the tape top,
In step S94, the system controller 59
Are connected to the reel motor 42 via the reel motor driving unit 43.
And the magnetic tape 1 is caused to rewind.

If it is determined in step S93 that the current position of the magnetic tape 1 is the tape top, the process proceeds to step S95, where the system controller 5
9 is a reel motor 4 via a reel motor driving unit 43.
2 to drive the reel drive units 40A and 40B to run the magnetic tape 1 toward the tape end.

In step S96, the system controller 59 determines whether or not the current position of the magnetic tape 1 is at the tape end. If it is determined that the current position is not at the tape end, the process proceeds to step S100, where the system controller 59 A signal recorded on the magnetic tape 1 is detected.

In step S101, the CTL signal detector 44 determines whether or not a CTL signal is recorded on the lower end of the magnetic tape 1. If it is determined that no CTL signal is recorded, the process proceeds to step S95. Returning, the above-mentioned subsequent processing is repeated. In step S101, CT
When determining that the CTL signal is recorded, the L signal detection unit 44 detects the CTL signal and outputs it to the system controller 59.

In step S102, the system controller 59 uses the filter 3 (BPF 71-3) to
It is determined whether or not a recording signal (digital signal) has been detected. If it is determined that the recording signal has been detected, the system controller 59 determines in step S103 that the signal recorded on the magnetic tape 1 is a digital recording signal. Is determined.

In step S104, the system controller 59 stores the recording position Pdn2 of the digital recording signal detected in step S100 in the memory. In step S105, the value of a variable n2 representing the number of recorded digital signals is incremented by one, and step S9
5 and the above-described processing is repeated.

In step S102, filter 3
When it is determined that the recording signal (digital signal) has not been detected, the process proceeds to step S106, and the system controller 59 further performs the filter 1 (BPF 71-1).
Then, it is determined whether or not a recording signal (AFM signal) has been detected. If it is determined that a recording signal has been detected, the process proceeds to step S107. In step S107, the system controller 59 uses the filter 2 (BPF 71-2)
It is determined whether or not a recording signal (analog video signal) is detected. If it is determined that the recording signal is detected, the system controller 59 determines in step S108 that the signal recorded on the magnetic tape 1 is an analog signal. It is determined that they are a video signal and an audio signal.

If it is determined in step S107 that the recording signal is not detected by the filter 2, the system controller 59 determines in step S109 that the signal recorded on the magnetic tape 1 is only an analog audio signal (AFM signal). Is determined.

If it is determined in step S106 that the recording signal (AFM signal) has not been detected by the filter 1, the process proceeds to step S110, where the system controller 59 further detects the recording signal (analog video signal) by the filter 2. The system controller 59 determines whether or not the recording signal has been detected.
In step S111, it is determined that the signal recorded on the magnetic tape 1 is only an analog video signal.

Step S108, S109 or S11
If it is determined in 1 that an analog video signal or AFM signal is recorded, in step S112, the system controller 59 stores the recording position Pan1 of the analog recording signal detected in step S100 in the memory. In step S113, the system controller 59 increments the value of the variable n1 representing the number of recorded analog signals by 1, returns to step S95, and repeats the above-described processing.

If it is determined in step S110 that the recording signal (analog video signal) has not been detected by the filter 2, the flow advances to step S95 to repeat the above-described processing.

If it is determined in step S96 that the current position of the magnetic tape 1 is at the tape end, the process proceeds to step S97, and the system controller 59 determines the attribute of the magnetic tape 1 mounted.

The system controller 59 sets the variables n1,
If the value of n2 is 1 or more, it is determined that the magnetic tape 1 is a mixed tape. If the value of the variable n1 is 1 or more and the value of the variable n2 is 0, the magnetic tape 1 is analogized. When the value of the variable n2 is 1 or more and the value of the variable n1 is 0, it is determined that the magnetic tape 1 is a tape on which only digital signals are recorded. If it is determined that the values of the variables n1 and n2 are both 0, the magnetic tape 1 is determined to be a non-recording tape.

In step S98, the system controller 59 controls the reel motor 42 via the reel motor driving unit 43, drives the reel driving units 40A and 40B, and causes the magnetic tape 1 to rewind. In step S99, the system controller 59 determines whether or not the current position is the initial position P stored in the memory. If it is determined that the current position is not the initial position P, the process returns to step S98. Until determined, the magnetic tape 1 is rewinded.

Returning to FIG. 9, when the attribute discriminating process of the magnetic tape 1 is completed as described above, step S12 is performed.
, The user operates the input unit 62 to use a command (a command for selectively setting the mode A or the mode B).
Enter In step S13, the system controller 59 detects a command (use command) from the user input via the input unit 62.

In step S14, the system controller 59 determines whether or not the attribute of the magnetic tape 1 determined in step S11 is a non-recording tape. If it is determined that the attribute is a non-recording tape, the process proceeds to step S15. move on. In step S15, the system controller 5
9 determines whether or not the current position of the magnetic tape 1 is the tape top. If it is determined that the current position is not the tape top, the system controller 5 determines in step S16.
9 is a reel motor 4 via a reel motor driving unit 43.
2 to control the magnetic tape 1 to run. If it is determined in step S15 that the current position of the magnetic tape 1 is the tape top, the process proceeds to step S28.

If it is determined in step S14 that the attribute of the magnetic tape 1 is not a non-recording tape, the flow advances to step S17, and the system controller 59
Determines whether or not the attribute of the magnetic tape 1 is a mixed tape. If it is determined that the magnetic tape 1 is a mixed tape, the process proceeds to step S
Proceed to 18.

In step S18, step S12
It is determined whether or not the use mode input by the user is mode A. If it is determined that the use mode is mode A, in step S19, the system controller 59 controls the warning sound generation unit 60 to Generates an audible alert. Alternatively, for example, the warning display unit 61
A message such as "Use mode is not suitable" is displayed.

After receiving the warning, the user operates the input unit 62 in step S20 to select whether or not to perform recording. If a recording instruction is input, the process proceeds to step S21. If it is determined in step S18 that the use mode is not the mode A, that is, if it is determined that the use mode is the mode B, the process proceeds to steps S19 and S19.
20 is skipped and the process proceeds to step S21.

In step S21, the system controller 59 determines that the analog signal is
(FIG. 5) and whether or not the digital signal is recorded in the digital recording area 12 (FIG. 5). If the determination is No, in step S22,
The system controller 59 controls the warning sound generation unit 60 to generate a warning sound that warns the user. Alternatively, a message such as “magnetic tape is not suitable” is displayed on the warning display unit 61.

After seeing this message, the user operates the input unit 62 in step S23 to select whether or not to perform recording. If a command to perform no recording is input, the system proceeds to step S24. Controller 5
9 ejects the magnetic tape 1 from the eject section 46. In step S23, when a recording command is input, the process proceeds to step S25. Step S2
1, when it is determined that the analog signal and the digital signal are recorded in the corresponding recording areas,
Proceed to step S25.

In step S25, the system controller 59 determines whether or not the current position of the magnetic tape 1 is at a predetermined recording position. If it is determined that the current position is not at the predetermined recording position, the system controller 59 proceeds to step S26. The controller 59 controls the reel motor 42 via the reel motor driving unit 43 to make the magnetic tape 1 run.
If the processing has proceeded through the processing of step S21, the predetermined recording position is the last recording position of a signal having the same attribute as the signal to be recorded, and if the processing has proceeded through the processing of step S23, If the recording signal is an analog signal, it becomes the tape top, and if it is a digital signal, it becomes the head position of the digital recording area 12.

In step S27, the system controller 59 determines whether or not a stop command has been input by the user via the input unit 62. If it is determined that the stop command has not been input, the process returns to step S25. The above processing is repeated.

If it is determined in step S25 that the current position is a predetermined recording position, the process proceeds to step S28, in which the system controller 59 switches the VTR to the recording mode and performs recording on the magnetic tape 1.

Hereinafter, recording of digital broadcasting will be described for simplicity. The tuner 32 receives a signal of a predetermined transmission channel from received signals of broadcast waves from the antenna 31 based on a command from the system controller 59. Since the switch 33 is a tuner-based input signal based on a command from the system controller 59, the terminal a
And the received input signal is supplied to the digital recording processing unit 36 via the switch 34.

The digital recording processing section 36 performs predetermined video signal processing and audio signal processing required for recording on the input digital signal, and outputs the processed signal to the amplifier 38 via the switch 37. The amplifier 38 amplifies the input video data or audio data so that a recording signal of a predetermined level is output, and supplies the amplified data to a corresponding head of the rotating drum 39. The head of the rotating drum 39 records a recording signal on the magnetic tape 1 based on a command from the system controller 59.

Returning to FIG. 10, in step S29, the system controller 59 determines whether or not a stop command has been input by the user via the input unit 62.
If it is determined that the stop command has not been input, the process returns to step S28, and the above-described processing is repeated.

If it is determined in step S27 or S29 that the stop command has been input, in step S30, the system controller 59
Each unit is controlled so as to stop the processing operation, and the processing is terminated.

If it is determined in step S17 that the attribute of the magnetic tape 1 is not a mixed tape, that is, if it is determined that the tape is a tape on which only analog signals or only digital signals are recorded, step S17 is executed.
Proceeding to 31, the system controller 59 determines whether or not the input signal and the signal recorded on the magnetic tape 1 have the same attribute. If it is determined that the signal has the same attribute, the process proceeds to step S32.

In step S32, in step S12
It is determined whether or not the use mode input by the user is mode A. When it is determined that the use mode is not mode A, that is, when it is determined that mode B is used, step S3 is performed.
In 3, the system controller 59 controls the warning sound generation unit 60 to generate a warning sound that warns the user. Alternatively, for example, a message such as “The use mode is not suitable. Do you want to switch to mode A?” Is displayed on the warning display section 61. That is, in this case,
Since the attributes match, mode A, which is a mode in which mixing is not allowed, is correct, instead of mode B, which is a mode in which mixing is allowed.

In step S34, the user operates the input section 62 to select whether or not to switch to mode A, and when a command to switch to mode A is input, or in step S32, the use mode is changed to mode A. If it is determined that the above is true, the process proceeds to step S28, and the above-described subsequent processes are repeated.

If a command not to switch to mode A is input in step S34, the process proceeds to step S35, where the system controller 59 determines whether a stop command has been input from the user via the input unit 62,
If it is determined that the stop command has not been input, the process returns to step S33, and the above processing is repeated.

If it is determined in step S31 that the input signal and the signal recorded on the magnetic tape 1 do not have the same attribute, the flow advances to step S36 to determine whether the use mode input by the user in step S12 is mode A. If it is determined that the mode is the mode A (the mode in which mixing is not allowed), the system controller 59 controls the warning sound generating unit 60 to warn the user in step S37. Generate. Alternatively, a message such as “Use mode is not suitable. Do you want to switch to mode B” is displayed on the warning display section 61.

In step S38, the user operates the input unit 62 to select whether or not to switch to mode B. If a command to switch to mode B is input, the process proceeds to step S28, and the above-described processing is repeated. If a command not to switch to the mode B is input in step S38, the process proceeds to step S39, where the system controller 59 determines whether or not a stop command has been input from the user via the input unit 62, and the stop command is input. If it is determined that it has not been performed, the process returns to step S37, and the above-described processing is repeated.

If it is determined in step S35 or S39 that a stop command has been input,
Proceeding to step S30, the system controller 59
Each unit is controlled to end the processing operation, and the processing ends.

If it is determined in step S36 that the use mode is not mode A, that is, if it is determined that the use mode is mode B, the process returns to step S21, and the above-described processing is repeated.

The use mode described above is selected (input) by the user every time recording is performed. For example, as shown in FIG. 17A, the non-contact memory card 81 provided in the tape cassette 21 is used. The use mode may be recorded. The details of the technique for recording information on a non-contact memory card are disclosed in, for example, Japanese Patent Application Laid-Open No. 10-308088.

Further, as shown in FIG. 17B, an auxiliary recording medium such as an attribute identification bar code 91 may be added to the tape cassette 21 and the use mode may be recorded on the auxiliary recording medium.

For example, as shown in FIG. 18, identification information is assigned to each bit of the attribute identification barcode 91, and an attribute or the like can be identified from those bits.

In FIG. 18, bit d4 indicates a use mode, “1” indicates mode A,
“0” indicates mode B. Bit d3 represents a recording mode, "1" represents an analog recording method, and "0" represents a digital recording method. Bit d2
Represents the ratio between the analog recording area 11 and the digital recording area 12, "1" represents that the analog recording area is 1 and the digital recording area is n,
“0” indicates that the digital recording area is 1 while the analog recording area is n. Here, the variable n represents the division ratio of mode B, and is calculated according to the following equation (1) using bits d1 and d0.

N = (2 ¹ · d1) + (2 ⁰ · d0) +1 (1) For example, if the values of d5 to d0 in FIG.
In the case of “xx”, since bits d4 = 1 and bit d3 = 0 are assigned, it can be determined that the use mode is mode A and the recording method is the digital recording method.

For example, if the values of d5 to d0 are "0
1101 ”, bit d4 = 0, bit d3 =
1, bit d2 = 1, bit d1 = 0, bit d0 = 1
Therefore, the use mode is mode B, the recording mode is the analog recording method, and the division ratio of mode B is n = (2 ¹ 0) + (2 ⁰ 1) according to the above equation (1).
Since + 1 = 2, it can be determined that the ratio between the analog recording area 11 and the digital recording area 12 is 1: 2. For example, in the case of the magnetic tape 1 capable of recording for 120 minutes in the SP mode, the analog recording area 11 is allocated for 40 minutes, and the digital recording area 12 is allocated for 80 minutes.

As described above, by adding the attribute identifying barcode 91 for identifying the attribute to the tape cassette 21, tape editing and searching can be performed efficiently. Also, since the recording area of the magnetic tape 1 is divided into an analog recording area 11 and a digital recording area 12,
The user can operate as if using a dedicated tape, without worrying about the recording mode.

In the above description, the case where the input signal is recorded on the magnetic tape 1 mounted on the VTR has been described as an example. However, the present invention is applicable to a recording apparatus of any other recording medium for recording a predetermined signal. It is also possible to apply.

For example, when recording on a disk-shaped recording medium or a hard disk, the recorded contents recorded therein can be easily determined by reading the recorded information written in the TOC (Table Of Contents). can do. Therefore, predetermined information can be recorded at a predetermined position based on the recorded contents.

For example, in the case of recording in a semiconductor memory or the like, similarly to the above-described disc-shaped recording medium, the recorded contents recorded therein can be determined by reading the recorded information written in the TOC. Since the determination can be easily made, predetermined information can be recorded at a predetermined position based on the recorded content.

As described above, in addition to the magnetic tape,
Since the VTR can also be used efficiently, it is possible to realize a device with a relatively simple configuration and low cost and high added value.

The above-described series of processing can be executed by hardware, but can also be executed by software. When a series of processing is executed by software, a program constituting the software is a computer (corresponding to the system controller 59 in FIG. 6) incorporated in an information recording device as dedicated hardware, or For example, a general-purpose personal computer or the like that can execute various functions by installing various programs is installed.

Next, referring to FIG. 19, a program for executing the above-described series of processes is installed in a computer, and a computer is used as a recording medium for making the computer executable. The case of a computer will be described as an example.

As shown in FIG. 19A, a program is stored in a hard disk 102 or a semiconductor memory 1 as a recording medium built in a personal computer 101.
03 in advance.

Alternatively, the program is executed as shown in FIG.
As shown in (B), the floppy disk 111 and the CD-R
OM (CD-Read Only Memory) 112, MO (Magneto-Optic)
al) Disc 113, DVD (Digital Versatile Disc)
114, magnetic disk 115, or semiconductor memory 11
6, etc., temporarily or permanently stored in a recording medium,
It can be provided as package software.

The recording medium in this specification means a broad concept including all these recording media.

The personal computer 101 has a built-in CPU 122, for example, as shown in FIG. C
An input / output interface 125 is connected to the PU 122 via a bus 121, and the CPU 122 receives a command from the user via the input / output unit 127 including a keyboard, a mouse, etc., via the input / output interface 125. Correspondingly, the semiconductor memory 10 of FIG.
The program stored in the ROM 123 corresponding to No. 3 is executed. Alternatively, the CPU 122 transfers a program stored in the hard disk 102 in advance, received by the communication unit 128, and further installed in the hard disk 102, or the floppy disk 111 or CD mounted in the drive 129.
-Read from the ROM 112, the MO disk 113, the DVD 114, or the magnetic disk 115,
02 is loaded into the RAM 124 and executed. Further, the CPU 122 outputs the processing result to a display unit 126 such as an LCD via the input / output interface 125 as necessary.

In the present specification, the steps of describing a program provided by a recording medium may be performed in a chronological order in the order described, or may be performed in a chronological order. This also includes processing executed in parallel or individually.

[0137]

As described above, according to the information recording apparatus of the first aspect, the information recording method of the fifth aspect, and the recording medium of the sixth aspect, the attribute of the input data is determined. Since the attributes of the signals recorded on the recording medium are determined and compared, and the input data is recorded in a predetermined recording area in accordance with the comparison result, analog data, digital data, etc. Can be efficiently and effectively recorded on a magnetic tape.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a magnetic tape 1;

FIG. 2 is a diagram illustrating another example of the magnetic tape 1.

FIG. 3 is a diagram illustrating an allowable mode in a type of a magnetic tape.

FIG. 4 is a diagram illustrating determination of a recording mode of a magnetic tape by an identification hole.

FIG. 5 is a diagram illustrating a magnetic tape 1 to which the present invention is applied.

FIG. 6 is a block diagram showing a configuration of a VTR to which the present invention has been applied.

FIG. 7 is a circuit diagram showing a configuration example of a reproduction signal determination unit 57 of FIG. 6;

FIG. 8 is a diagram illustrating a frequency band of a signal.

FIG. 9 is a flowchart illustrating the operation of the VTR of FIG. 6;

FIG. 10 is a flowchart following FIG. 9;

FIG. 11 is a flowchart following FIG. 10;

12 is a flowchart illustrating a process of determining an attribute of a recording signal in step S11 of FIG. 9;

FIG. 13 is a flowchart following FIG. 12;

FIG. 14 is a diagram illustrating a recording mode of a D-VTR.

FIG. 15 is another flowchart illustrating the attribute determination process of the recording signal in step S11 of FIG. 9;

FIG. 16 is a flowchart continued from FIG. 15;

FIG. 17 is a diagram illustrating determination of a use mode.

FIG. 18 is a diagram illustrating bit assignment of an attribute identification barcode 91.

FIG. 19 is a diagram illustrating a recording medium.

20 is a block diagram showing a configuration of the personal computer 101 in FIG.

[Explanation of symbols]

1 magnetic tape, 11 analog recording area, 12 digital recording area, 21 tape cassette, 31 antenna, 32 tuner, 33, 34 switch, 3
5 analog recording processor, 36 digital recording processor,
37 switch, 38 amplifier, 39 rotating drum, 40A, 40B reel, 41A, 41B FG
Detecting unit, 42 reel motor, 43 reel motor driving unit, 44 CTL signal detecting unit, 45 CTL signal measuring unit, 46 ejecting unit, 47 amplifier, 48
Switch, 49 analog playback processor, 50 switch, 51 CRT, 52 playback equalizer, 53 digital playback processor, 54 D / A converter, 55 switch, 56 speaker, 57 playback signal discriminator, 5
8 input signal discriminator, 59 system controller,
60 warning sound generator, 61 warning display, 62
Input unit, 71-1 to 71-3 BPF, 72-1 to 72-3 Diode detector, 73-1 to 73-3
Comparator, 81 Non-contact memory card, 91
Barcode for attribute identification

Claims (6)

[Claims] 1. An information recording apparatus for recording data on a mounted recording medium, comprising: input signal determining means for determining an attribute of input data; and reproducing a signal recorded on the recording medium. Reproducing signal discriminating means for discriminating the attribute; comparing the attribute discriminated by the input signal discriminating means with the attribute discriminated by the reproducing signal discriminating means; Control means for controlling the recorded data to be recorded in a predetermined recording area. 2. The input signal determining means determines whether the input data is analog data or digital data. The reproduction signal determining means determines whether the recorded signal is an analog signal. 2. The information recording apparatus according to claim 1, wherein it is determined whether the signal is a signal, a digital recording signal, or no recording. 3. The control unit further determines whether the use mode is a first mode in which signals with different attributes are not mixed or a second mode in which signals with different attributes are mixed. 2. The information recording apparatus according to claim 1, wherein recording is controlled correspondingly. 4. The information recording apparatus according to claim 1, wherein the recording medium is a magnetic tape, and is divided into an analog recording area and a digital recording area. 5. An information recording method for an information recording apparatus for recording data on a mounted recording medium, comprising: an input signal determining step of determining an attribute of input data; A reproduced signal, and a reproduced signal determining step of determining the attribute; comparing the attribute determined by the processing of the input signal determining step with the attribute determined by the processing of the reproduced signal determining step; A control step of controlling the input data to be recorded in a predetermined recording area in accordance with the result. 6. An information recording program used for recording data on a mounted recording medium, comprising: an input signal determining step of determining an attribute of input data; Reproducing a recorded signal and comparing the attribute determined by the processing of the input signal determining step with the attribute determined by the processing of the reproduced signal determining step, wherein the attribute is determined by the processing of the input signal determining step. A control step of controlling the recording of the input data in a predetermined recording area in accordance with the comparison result. .