JP2790924B2 - Digital signal recording / reproducing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary digital audio tape recorder (hereinafter referred to as "R-DAT").
Or stationary digital audio tape recorder such as (hereinafter referred to as "S-DAT"), such as, to a digital signal recording and reproducing apparatus.

[0002]

2. Description of the Related Art For example, in an R-DAT, an analog signal is A
Not only can it be converted into a digital signal by an / D converter and recorded, but also a digital signal sent from an external device in accordance with a digital interface format can be recorded.

If digital signals are input to and output from other devices, recording can be performed without using an A / D converter, a D / A converter, or an analog circuit, so that recording and reproduction without deterioration in sound quality becomes possible.

In the above digital interface format, various control signals are transmitted and received in addition to information signals such as digital audio. One of various control signals is a so-called copy inhibition signal, which is added on the transmission (reproduction) side when recording should not be performed on the R-DAT reception (recording) side.

[0005] In the conventional R-DAT, a user selects and records by a key input operation based on a control signal on the transmission side. Therefore, if a copy inhibition signal is added when trying to record a digital signal, the recording operation stops,
It was displayed that copying was prohibited.

[0006]

In the conventional digital signal recording / reproducing apparatus as described above, it is necessary for the user to constantly monitor the presence or absence of a copy prohibition signal, and it has been difficult to record for a long time.

[0007] In order to solve the above problems, a first aspect of the present invention, a data group which can be a digital copy, the playback of the data using a recording medium in which a data group digital copy is inhibited are mixed A digital signal recording / reproducing apparatus capable of performing the display, displaying means for displaying images respectively corresponding to the data group, detecting means for detecting data indicating whether or not digital copying is possible from the reproduced data on the recording medium; while digital copy based on the detection result of Ru provided with identification means for identifying the forbidden data groups and the digital copy is available data groups by said display means, when displaying an image corresponding to the data group, Up
Digital copy based on the identification result by the identification means.
Possible data groups and data groups for which digital copying is prohibited
Thus, the displayed image is made different .

[0008] The invention according to claim 2 provides the invention according to claim 1.
In addition to the configuration described above, a reproduction control means for selectively reproducing only a data group that can be digitally copied based on the identification result by the identification means is provided. According to a third aspect of the invention, while in addition to the configuration of the invention according to claim 2, Ru provided designation means for designating a recording end data group and recording start data group based on the image displayed on the display means, the reproduction control means, in which the digital copy is located to selectively reproduce data groups as possible between the recording end data group with the specified recording start data group by said designation means.

[0009]

According to the first aspect of the present invention, a recording medium is provided.
Data indicating whether digital copying is possible from body reproduction data
Is detected by the detecting means, and based on the detection result,
The identification means is used to identify data groups for which digital copying is
Identify data groups that can be copied. And the table
When the display means displays an image corresponding to the data group,
Digital copy is possible based on the identification result by means
The data group and the data group for which digital copying is prohibited,
By making the displayed image different,
The data group whose digital copy is prohibited
Can be According to the invention described in claim 2, the reproduction system
Control means based on the identification result by the identification means.
By selectively playing back only those data groups for which
Automatically selects only data groups that can be copied digitally.
Digital recording without interruption.
According to the third aspect of the present invention, the image displayed on the display means is displayed.
The recording start data group and the recording end data group are specified based on the image.
When specified by the setting means, the playback control means
Recording start data group and recording end data specified by the column
Group of data that can be copied digitally
Digital copy is possible by selectively playing back
Automatically select only data groups that are
And record the digital record
The user can arbitrarily set the data group to be performed.
it can.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a digital signal recording / reproducing apparatus according to the present invention will be described below with reference to the drawings.

FIG. 1 is an overall perspective view showing a digital signal recording / reproducing apparatus according to the present invention. FIG. 2 is a schematic block circuit diagram showing a digital signal recording / reproducing apparatus according to the present invention. FIG. 3 shows the identification in the digital signal recording / reproducing apparatus.
9 is a flowchart illustrating an example of operation control during display .
FIG. 4 is an explanatory diagram showing an example of a specific identification display of the display unit in the digital signal recording / reproducing apparatus . Figure 5 is the same de
Digital copy operation in digital signal recording / reproducing device
It is a flowchart which shows an example of operation | movement control . Figure 6 shows the same
Digital copy operation in digital signal recording / reproducing device
It is a flowchart which shows another example of operation | movement control .

In FIG. 1, a cassette insertion slot 1a having a loading mechanism is provided on the left side of a front panel 1 of the apparatus, and a control operation key section for operating the apparatus below the cassette insertion port 1a. 1b is provided. On the right side of the cassette insertion slot 1a, there is provided a display section 1c for displaying operation contents and information. Other, power switch 1
d, volume knob 1e, and the like.

2A is a schematic block circuit diagram when the digital signal recording / reproducing device is used as a reproducing device, and FIG. 2B is when the digital signal recording / reproducing device is used as a recording device. It is a schematic block circuit diagram.

In FIG. 2A, reference numeral 11 denotes a reproducing unit for reproducing a recorded signal. Reference numeral 12 denotes a signal processing unit, the input side of which is connected to the output side of the reproduction unit 11. Reference numeral 13 denotes a D / A converter, which is connected to the output side of the signal processing unit 12.

The microcomputer 14 detects the presence or absence of a digital copy prohibition signal and outputs a control signal. The copy prohibition detection control circuit 14a detects a start ID, an end ID from the format ID, and information contents of the music, and outputs a music control signal. A system microcomputer including an information detection control circuit 14b, a key input detection control circuit 14c for detecting an input signal of a key input section and outputting a control signal, and a display signal control circuit 14d for outputting a display signal for controlling a display section; It is connected via the signal processing unit 12 and the line l _5.

The mechanism control unit 15 includes a control circuit 15a for inputting and outputting a mechanism control signal, a reproduction / recording solenoid 15b, a fast-forward solenoid 15c, a rewind solenoid 15d, a motor 15e, and the like. _The reproducing unit 11 is controlled according to a control signal sent through the control unit ₄ .

The key input unit 16 includes a reproduction key 16a, a recording key 16b, a fast forward key 16c, a rewind key 16d, a stop key 16e, a pause key 16f, and an automatic identification key 16
g, an automatic selection key 16h, a continuous recording key 16i, and the like.

Reference numeral 18 denotes an analog signal output terminal, 19 denotes the same information content as the signal output from the analog signal output terminal 18, a digital signal output terminal conforming to a digital interface format, and 20 denotes a recording device side. Is a control signal input terminal for inputting the control signal.

In FIG. 2B, reference numeral 21 denotes an analog signal input terminal, and reference numeral 22 denotes an A / D converter, the input side of which is connected to the analog input terminal 21. Reference numeral 23 denotes a digital signal input terminal conforming to the digital interface format, and a signal having the same information content as the input signal applied to the analog input terminal 21 is input. Reference numeral 24 denotes a digital signal converter, the input side of which is connected to the digital signal input terminal 23, and converts a signal provided in a digital interface format into the same format as the output of the A / D converter 22. .

The microcomputer 25 is substantially the same as the microcomputer 14 on the reproducing side. The microcomputer 25 detects a presence or absence of a digital copy inhibition signal and outputs a control signal. The copy inhibition detection control circuit 25a, the music information detection control circuit 25b, This is a system microcomputer including a key input detection control circuit 25c and a display signal control circuit 25d, and controls each unit on the recording side.

Reference numeral 26 denotes a signal processing unit, the input side of which is connected to the output side of the A / D converter 22 and the output side of the digital signal conversion unit 24, and adds an error correction code to the input digital signal. Or Reference numeral 27 denotes a recording unit, whose input side is connected to the output side of the signal processing unit 26, and records the processed signal on a recording medium such as a tape.

The mechanism control unit 28 is substantially the same as the mechanism control unit 15 on the reproduction side, and includes a control circuit 28a,
Reproduction / recording solenoid 25b, fast-forward solenoid 2
5c, a rewind solenoid 28d and a motor 28e.

The key input unit 29 is a key input unit 1 on the reproduction side.
6, the playback key 29a and the recording key 29
b, fast forward key 29c, rewind key 29d, stop key 2
9e, a pause key 29f, an automatic identification key 29g, an automatic selection key 29h, a continuous recording key 29i, and the like.

Reference numeral 30 denotes a display unit, which is substantially the same as the display unit 17 on the reproduction side, and 31 denotes a control signal output terminal output from the microcomputer 25.

An embodiment for implementing claim 1 in the digital signal recording / reproducing apparatus of the present invention configured as described above will be described with reference to a flowchart shown in FIG.

[0026] In step 41, when the key operation to turn ON the automatic identification key 16g of the key input unit 16, the process proceeds to step 42, control signals to rewind the mechanism control unit 15 via a line l ₄ from the microcomputer 14 Given. In the mechanism control unit 15, a control circuit 15a
Then, a signal for controlling the rewind solenoid 15d is output, the motor 15e is rotated at a high speed, and the magnetic tape is advanced to the winding start portion, and the process proceeds to the step 43.

In step 43, the control circuit 15a controls the reproduction / recording solenoid 15b and the fast-forward solenoid 15b.
c is controlled to enter the high-speed search state, and the routine proceeds to step 44.

In step 44, the format ID
Song information detection control circuit 14 of the start ID list music number information signal processing section 12 than through the line l ₅ microcomputer 14
The music given to b is detected, and the routine proceeds to step 45.

In step 45, when a music is detected, the display signal control circuit 14d of the microcomputer 14 sends the music number NO. With a flashing cycle of 0.5 seconds (hereinafter "blinking (1)")
), And the control signal is displayed on the display unit 17.

[0030] In step 46, outputs the detected control signal whether the information of the digital copy inhibit signal ID ₆ format ID of a copy inhibit signal of the microcomputer 14 via a line l ₅ than similar signal output section 12 and the step 44 To the copy prohibition detection control circuit 14a, and the process proceeds to step 47 or 48 according to the judgment. If there is a copy prohibition signal, the program number NO.
Generates a control signal that flashes at a flashing cycle of 1.0 second (hereinafter referred to as “flashing (2)”) from the display of flashing (1),
Flashing at 7 (2) is displayed. If there is no copy prohibition signal,
In step 48, the display unit 17 lights up the display by the same processing as step 47.

[0031] In step 49, the song information detection control circuit 14b of the microcomputer 14 the information of the presence or absence of the end ID of the format ID via the line l ₅ from the signal processing unit 12
Give to. When it is not the last song (when there is no end ID)
Returns to step 43, and repeats the processing from step 43 to step 49. If it is the last song (when there is an end ID), the process proceeds to step 50.

[0032] In step 50, the control circuit 1 of the mechanism control unit 15 via a line l ₄ from the microcomputer 14
A control signal for rewinding to the start portion of the first music is supplied to 5a. In the control circuit 15a, a rewind solenoid 15d
The motor 15e back high speed wound, song information detection control circuit 14b by detecting the start ID format ID to the control circuit winding in 15a return solenoid 15d of the microcomputer 14 via a line l ₅ from the signal processing unit 12
Is turned off, the motor 15e is stopped, and rewinding to the start portion of the first music is stopped.

FIG. 4 shows an embodiment of the contents displayed on the display unit 17 at this time. In FIG. 4, for example, 11 songs are recorded (recorded), the second song, the fourth song, and the eighth song are prohibited from being copied, and the others are display contents when copying is possible. FIG. 4 (a)
FIG. 4B shows the contents of the display during the determination of the presence or absence of the copy prohibition signal of the seventh tune. FIG. 4B shows the display after the eleventh tune is determined to be the last tune and the rewind to the start of the first tune is stopped. Content.

Accordingly, when the number of music pieces is designated, the number of music pieces recorded on the magnetic tape can be displayed and the presence or absence of the copy inhibition signal can be easily visually recognized.

Next, an embodiment for implementing claim 2 will be described with reference to a flowchart shown in FIG.

[0036] In step 71, when the key operation to ON automatic key selection key 29h of the key input unit 29, the process proceeds to step 72, the mechanism via a line l ₂ from the key input control circuit 25c of the microcomputer 25 control unit 2
8 is supplied with a control signal for starting digital recording. The mechanism control unit 28 outputs a signal for controlling a reproduction / recording solenoid 28b from a control circuit 28a,
The digital recording is started by rotating e.

[0037] In step 73, the reproducing side of the copy inhibit signal digital signal input terminal 23 a control signal of the microcomputer 25 via a line l ₁ from the digital signal converter 24
Send to Copy inhibition detection control circuit 25a of microcomputer 25
To determine the contents of the format ID ID6. If there is no copy inhibition signal, the flow advances to step 74 to execute digital recording. If there is a copy prohibition signal, step 7
5 and proceed to step 77.

First, at step 75, the microcomputer 25
Providing a control signal to suspend the mechanism control unit 28 via a further line l _2. The reproduction / recording solenoid 28b is turned off by the control circuit 28a of the mechanism control unit 28.
Then, the motor 28e is stopped and brought into a temporary stop state.
At the same the process proceeds to step 78 sends a signal for controlling the reproduction side to the microcomputer 14 via a line l ₃ from the microcomputer 25 in step 77 simultaneously.

[0039] In step 78, the control signal is fed through a line l ₄ from the microcomputer 14 to the mechanism control section 15. A reproduction / recording solenoid 15b and a fast-forward solenoid 1 are controlled by a control circuit 15a of the mechanism control unit 15.
5c is turned on, the motor 15e is rotated at a high speed to set a skip operation state, and the routine proceeds to step 79. Skip to the next song in step 79 and format ID
The process proceeds to step 80 for judging the information of ID6.

In step 80, if there is a copy prohibition signal, the flow returns to step 79 to repeat the same processing. If there is no copy inhibition signal, the process proceeds to steps 76 and 81.

In step 76, the mechanism controller 28 controls the reproduction / recording solenoid 2 by the control circuit 28a.
8b is turned on, the motor 28e is rotated, and the temporary stop state is released. At the same time, steps 77 to 7
A process reverse to the process of Step 9 is performed in Steps 81 to 83 to cancel the skip operation and perform a process of returning to the reproduction state. The process proceeds from step 76 and step 83 to step 74, and continuous digital recording without interruption is enabled.

Therefore, if the user designates this automatic selection at the time of recording, the digital copy prohibited music is skipped, only the music that can be digitally copied is automatically selected, and digital recording is performed continuously without interruption.

Next, an embodiment for carrying out claim 3 will be described. A key 2a for designating a recording start song, a key 2b for designating a recording end song, a designation cancel key 2c, and a designation completion key 2 are provided below a display portion 1c of the entire perspective view of the apparatus of FIG.
A setting key section 2 consisting of d is arranged.

For example, when 11 songs are recorded and the second, fourth, and eighth songs are copy-prohibited, and the other songs can be copied, the third to ninth songs that can be digitally copied are selected and digitally recorded. A method for performing the above will be described.

When the identification key is operated, the identification is displayed on the display section 1c of FIG. 1 as shown in FIG. 4 (b) and the user easily recognizes it and first presses the recording start music designation key 2a once to obtain a "square". The display of "1" in the frame is turned off, and the recording start music becomes the second music. When the button is pressed again, the display of "2 in the star" turns off and the recording start tune becomes the third tune. Next, when the recording end song designation key 2b is pressed once, the display of "11 in a rectangular frame" turns off and the recording end song becomes the tenth song. When the button is pressed again, the display of "10 in a square frame" is turned off, and the ending tune becomes the ninth tune. Then, when the designation completion key 2d is pressed, the setting is completed. If there is an error in the setting, the user presses the designation cancel key 2c and resets the setting according to the above procedure.

When the automatic selection key operation is performed after performing the above processing, not only automatic selection from all recorded songs, but also automatic selection from arbitrarily designated songs can be performed, thereby enabling digital recording.

Next, another example of the digital copy operation is shown in FIG.
I Ri is described in the flow chart shown in.

When the continuous recording key 29i of the control operation key section 1b of the front panel section 1 of FIG. 1 is operated, the processing of steps 75 to 83 of the flowchart of FIG. 5 becomes the processing of step 92 of FIG.
The processing of step 91 is added between step 3 and step 74, and the processing is the same up to step 72.

[0049] In step 73, sends the copy inhibition detection control circuit 25a of the microcomputer 25 a digital signal from the digital signal converter 24 through a line l _1, if the copy inhibit signal is not present, the line l from the microcomputer 25 at step 91 _The setting is made such that the input switching unit 32 is selected as the output side of the digital signal conversion unit 24 via ₆ , and the process proceeds to step 74 so as to directly record the digital signal.

If there is a copy prohibition signal, step 9
In step 2, the input switching unit 32 is similarly set to select the output side of the A / D converter 22, and the digital signal is recorded via the D / A converter 13 and the A / D converter 22. Proceed to 74.

Therefore, when the user designates this continuous recording at the time of recording, all the recorded music is digitally recorded without skipping the digital copy prohibited music regardless of whether digital copy is prohibited.

The above apparatus has been described for the R-DAT, but can be similarly applied to the S-DAT.

[0053]

As described above, according to the first aspect of the present invention,
When displaying images corresponding to data groups,
Data groups that can be copied and digital copies are prohibited
By making the displayed image different for the data group
Data for which digital copying is prohibited by the user.
Group can be easily visually recognized,
The copying operation can be performed smoothly. Claim 2
According to the invention, only data groups that can be digitally copied are stored.
Digital copy is possible by selective playback
Automatically select only data group and continuously
Can be recorded, so that the user can constantly monitor
Digital copy operation can be performed smoothly without
You. According to the third aspect of the invention, the designated recording start
Digital located between data group and recording end data group
By selectively playing back copyable data groups
Automatically selects only data groups that can be copied digitally.
Digital recording without interruption
In both cases, the data group for digital recording is provided to the user.
Can be set arbitrarily,
Digital copy operation of desired data group without monitoring
Can be performed smoothly.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a digital signal recording / reproducing apparatus according to the present invention.

FIG. 2 is a schematic block circuit diagram showing a digital signal recording / reproducing apparatus according to the present invention.

FIG. 3 is an identification display in the digital signal recording / reproducing apparatus.
6 is a flowchart showing an example of operation control at the time .

FIG. 4 is an explanatory diagram showing an example of a specific identification display of a display unit in the digital signal recording / reproducing device .

FIG. 5 shows a digital signal in the digital signal recording / reproducing apparatus.
9 is a flowchart illustrating an example of operation control during copying .

FIG. 6 shows a digital signal in the digital signal recording / reproducing apparatus.
9 is a flowchart illustrating another example of operation control during copying .

[Explanation of symbols]

Reference Signs List 1 Front panel unit of this apparatus 1a Cassette insertion slot 1b Control operation key unit 1c Display unit 2 Setting key unit 11 Playback unit 12, 26 Signal processing unit 13 D / A converter 14, 25 Microcomputer 15, 28 Mechanism control unit 16, 29 key input unit 17, 30 display unit 22 A / D converter 24 digital signal conversion unit 27 recording unit

Claims (3)

(57) [Claims] 1. A data group of digital copy can be in the digital signal recording and reproducing apparatus capable of playback of data using a recording medium in which a data group digital copy is inhibited are mixed, the data group Display means for displaying an image corresponding to each of the following, detection means for detecting data indicating whether or not digital copying is possible from the reproduction data of the recording medium, and a data group for which digital copying is prohibited based on the detection result by the detection means. while the Ru provided with identification means for identifying the data group capable digital copy, the display means, when displaying an image corresponding to the data group
Based on the identification result by the identification means.
Data that can be copied and data for which digital copying is prohibited.
A digital signal recording / reproducing apparatus characterized in that a display image is different between data groups . 2. The digital signal recording / reproducing apparatus according to claim 1, further comprising reproduction control means for selectively reproducing only a data group which can be digitally copied based on the identification result by said identification means. 3. While Ru is provided a designation means for designating a recording end data group and recording start data group based on the image displayed on the display means, said reproduction control means, recording start designated by the designation means 3. The digital signal recording / reproducing apparatus according to claim 2, wherein a digitally copyable data group located between the data group and the recording end data group is selectively reproduced.