JPH11296967A - Recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make combinations among plural recording systems and recording modes selectable with a simple operation by setting executable combinations among recording systems and recording modes obtained by logically judging plural recording mode information, recording media class information and copy protection information and successively updating set combinations based on the input signal of a recording selecting switch. SOLUTION: An input signal processing means 10 to which an analog recording system is instructed supplies an analog video signal to an analog video signal processing means 11 and supplies an analog voice signal to an analog voice signal processing means 12. Moreover, a changeover switch 9 to which the analog recording system is instructed from a recording system selecting means 15 inputs an analog voice signal which is converted into a recording format to voice recording magnetic head pair 2a, 2b by the analog voice signal processing means 12. When a digital recording system is selected, the input signal processing means 10 to which a digital recording system is instructed from the means 15 supplies digital video and voice signals.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus capable of recording / reproducing a signal (for example, a video / audio signal) by both an analog recording / reproducing method and a digital recording / reproducing method.

[0002]

2. Description of the Related Art As shown in FIG. 12, a video / audio recording / reproducing apparatus of an analog recording / reproducing method includes a rotary magnetic head device 3 having a pair of video recording magnetic heads 1a and 1b and a pair of audio recording magnetic heads 2a and 2b. The magnetic tape 4 is wound around the tape guide pins 5 and 6. The pair of video recording magnetic heads 1a and 1b of the recording head device 3 are supplied with the analog video signal input from the input terminal 23 and the analog video signal processing means 1.
1 and supplies it to a recording format. The pair of audio recording magnetic heads 2a and 2b receive the analog audio signal input from the input terminal 24 and output the analog audio signal processing means 12
The data is converted into a recording format and supplied. The magnetic tape 4 is fed in the direction of the arrow by a pinch roller 7 and a capstan 8.

In the switching of the recording mode (standard and triple) in the video / audio recording / reproducing apparatus, the tape running drive circuit 14 uses the capstan (cap) according to the setting information of the recording mode setting selection switch 18 by the recording mode selection means 16. The feed speed of the magnetic tape 4 is switched by controlling the stun motor 8.

[0004]

Recently, video and audio recording and reproducing apparatuses for recording and reproducing digital signal broadcasting and video and audio software have been increasing. Therefore, to configure a composite audio / video recording / reproducing apparatus in which a digital recording method is added to an analog recording method, in addition to a recording mode selecting means for selecting a recording mode, an analog recording method or a digital recording method is selected. Means for selecting a recording method is required.

[0005] When a selection switch is assigned to each of these two selection means, the number of selection switches to be operated increases and the usability deteriorates. In addition, when selecting the recording method and recording mode, avoid the combination of the recording method and recording mode that are not in the standard, or set the recording method and recording mode that cannot be recorded depending on the copy protection information or the type of the inserted cassette. Care must be taken to avoid combinations, and the selection operation becomes complicated.

Accordingly, an object of the present invention is to provide a recording / reproducing apparatus capable of selecting a combination of a plurality of recording methods and recording modes by a simple operation.

[0007] Specifically, it is to facilitate the operation of selecting a digital recording method or an analog recording method and selecting a recording mode in each recording method.

Another object of the present invention is to make it possible to easily select a combination of an executable recording method and a recording mode determined according to the type of input signal, copy protection information and the type of recording medium (cassette tape) to be used. .

Further, when a change is made between the executable recording method and the recording mode, if the recording method and the recording mode which were previously selected as being executable become a non-executable recording method and a recording mode, the recording method is executed after the change. An object of the present invention is to facilitate selection and setting of a possible combination of a recording method and a recording mode.

[0010]

SUMMARY OF THE INVENTION The present invention relates to a recording and reproducing apparatus having a function of recording and reproducing signals in both an analog recording and reproducing method and a digital recording and reproducing method. A standard information holding unit for holding standard information, a recording medium type detecting unit of a mounted recording medium, a copy protection information detecting unit, and a recording for setting a combination of a recording method and a recording mode capable of performing recording A combination of a method-recording mode setting means and a recording selection switch, wherein the recording method-recording mode combination setting means detects a plurality of recording mode information in each recording method held in the standard information holding means, and detects a recording medium type. Means that can be obtained by logically determining the recording medium type information detected by the means and the copy protection information. Set the combination method and the recording mode, based on the input signal of the recording selection switch,
It is characterized in that the set combinations are sequentially updated.

[0011]

FIG. 1 shows an embodiment of the present invention and is a block diagram of a video cassette tape recorder using a magnetic tape as a recording medium. Note that the same or similar components as those of the conventional recording / reproducing apparatus are denoted by the same reference numerals, and redundant description will be omitted.

The pair of magnetic heads 2a and 2b in the rotary magnetic head device 3 are selectively provided to the analog audio signal processing means 12 and the digital signal processing means 13 via a changeover switch 9 which operates under the control of the recording method selection means 15. To record an analog audio signal formatted by the analog audio signal processing means 12 in the case of the analog recording method, and to record a digital signal formatted by the digital signal processing means 13 in the case of the digital recording method.

The input signal processing means 10 includes the input terminal 2
An analog video signal obtained by passing an analog video signal and an audio signal input from the input terminals 25 and a digital signal input from the input terminal 25 in accordance with a selection instruction from the recording method selection means 15 or converting the signal format. The signal is transmitted to the processing means 11, the analog audio signal processing means 12, and the digital signal processing means 13.

Here, the flow of signals will be described for two recording systems, an analog recording system and a digital recording system.

Analog recording method: an input signal is an analog signal: an analog video signal input to an input terminal 23 is passed through the input signal processing means 10 as it is, and is converted into an analog video signal recording format by the analog video signal processing means 11; Recording is performed on the magnetic tape 4 by pairs 1a-1b.

The analog audio signal input to the input terminal 24 is passed through the input signal processing means 10 as it is, converted into an analog audio signal recording format by the analog audio signal processing means 12, and is converted to the magnetic tape 4 by the pair of magnetic heads 2a and 2b. Record.

The input signal is a digital signal. The digital video / audio signal input to the input terminal 25 is
And D / A conversion processing into an analog video signal and an analog audio signal. The converted analog video signal is converted into an analog video signal recording format by the analog video signal processing means 11 and recorded on the magnetic tape 4 by the pair of magnetic heads 1a and 1b. The analog audio signal is converted into an analog audio signal recording format by the analog audio signal processing means 12 and recorded on the magnetic tape 4 by the pair of magnetic heads 2a and 2b.

Digital recording system Input signal is an analog signal: A / D conversion processing is performed by an input signal processing means 10 on an analog video signal input to an input terminal 23 and an analog audio signal input to an input terminal 24 to obtain a digital video audio signal. I do. The digital video / audio signal is converted into a digital video / audio signal recording format by the digital signal processing means 13 and recorded on the magnetic tape 4 by the pair of magnetic heads 2a and 2b.

The input signal is a digital signal: a digital video / audio signal input from the input terminal 25
0 is passed as it is, converted into a digital video / audio signal recording format by the digital signal processing means 13 and recorded on the magnetic tape 4 by the magnetic head pair 2a, 2b.

The input signal processing means 10 for executing such signal processing will be described with reference to FIG.

The input signal processing means 10 includes an input selection block 26, an output selection block 30, an A / D converter and an MPEG encoder 34, and an MPEG decoder and a D / A converter 35.

When an analog signal is input in response to an input signal type identification information signal 39 output from an input selection switch (not shown), the input selection block 26
When the switches 27 and 28 are closed and the switch 29 is opened, only two signals, namely, the Ananegu video signal supplied to the input terminal 23 and the analog audio signal supplied to the input terminal 24 are input. The input signals are supplied to the switches 31 and 32 of the output selection block 30 as they are, and are always input or only when the control signal 40a from the recording mode selection unit 15 indicates digital recording. The converted analog video signal and analog audio signal are converted into digital video / audio signals by an A / D converter & MPEG encoder 34 and supplied to a switch 33.

When a digital signal is input,
As shown in FIG. 2, the switches 27 and 28 are opened and the switch 29 is closed, so that only the digital video / audio signal supplied to the input terminal 25 is input. The input digital video / audio signal is supplied to the switch 33 of the output selection block 30 as it is, and the control signal 40 b
Is converted into an analog video signal and an analog audio signal by the MPEG decoder & D / A converter 35, and the switch 31 and the switch 3
Feed to 2.

The output selection block 30 responds to the control signal 40c from the recording method selection means 15 and closes the switches 31 and 32 and opens the switch 33 when the analog recording method is instructed. Only the video signal and the analog audio signal are output to the analog video signal processing means 11 and the analog audio signal processing means 12 as output signals 36 and 37. When the digital recording method is instructed, the switches 31 and 32 are opened and the switch 33 is closed, and only the digital video / audio signal is output to the digital signal processing means 13 as the output signal 38.

The recording method / recording mode combination setting means 17 obtains copy protection information detected by analyzing the input signal by the copy protection detecting means 19 and the cassette tape mounted by the cassette type detecting means 20. Based on the cassette type information and the recording method standard information stored in the recording method standard information holding unit 21, a combination of a recording method and a recording mode that can be executed is set. According to the input signal type identification information signal 39 determined by the input signal type detection unit 22 based on the reception channel selected by the built-in broadcast reception unit 42 or the type information of the attached cassette tape, the initial setting of this combination is performed. Value, and changes the selected value according to the instruction from the record selection switch 18. To.

In this embodiment, the copy protection detecting means 19 performs the CGMS in the broadcast data stream.
(Copy guard management system) and macro vision control information. Further, the cassette type detecting means 20 determines whether or not there is a detection window for the D-VHS cassette and the S-VH
The presence or absence of the detection window of the S cassette is detected. Then, the standard information holding unit 21 of the recording method uses the VHS standard (S-VHS).
Standards and D-VHS standards.

3 to 8 show an embodiment of the combination. Basically, a combination of a recording method and a recording mode that can be executed is set according to the standard information, and the combination that can be executed is further limited by the copy protection information of the input signal and the type of the cassette tape to be mounted.

FIG. 3 shows the standard information read from the standard information holding means 21 when there is no copy protection information (copy restriction) in the input signal and the type of the attached cassette tape is S-VHS or D-VHS. This is a combination of a recording method and a recording mode created based on the above (a mark is executable, and a mark is not executable).

FIG. 4 shows that the type of the mounted cassette tape is VH.
This is the case for S. It becomes impossible to perform recording by digital recording.

FIG. 5 shows a case where digital copying of an input signal is prohibited. Digital recording becomes infeasible.

FIG. 6 shows a case where the digital copying of the input signal is prohibited and the type of the attached cassette tape is VHS. Digital recording becomes infeasible.

FIG. 7 shows that the analog copy of the input signal is prohibited, and the type of the cassette tape is S-VHS or D-type.
-VHS. Analog recording becomes impossible.

FIG. 8 shows a case where the analog copy of the input signal is prohibited and the type of the attached cassette tape is VHS. All recordings become infeasible.

The user selects one of the executable combinations (indicated by a circle) by using the recording selection switch 18. The recording method-recording mode combination setting means 17
For example, when the input signal type identification information signal 39 indicates that the signal is an analog signal, in the executable combination in FIG. 3, the standard recording mode is set to the initial value in the analog recording method, and thereafter, the analog recording method is used. A recording method-recording mode combination setting is set such that the three-times recording mode, the standard recording mode of the digital recording method, and the long recording mode of the digital recording method can be updated in this order, and the operation returns to the standard recording mode of the analog recording method again. Do. Then, each time a selection update instruction is input from the record selection switch 18, the set value (executable combination) is updated in accordance with the setting order.

When the copy protection information included in the input signal changes or the cassette tape is replaced, the copy protection information and the cassette type information change, and the copy protection information and the cassette type information change according to the combination of the recording method and the recording mode that have been set so far. If recording cannot be performed, the recording method-recording mode combination setting unit 17 sets the newly executable combination of the recording method and the recording mode without waiting for a new selection operation of the recording selection switch 18 by the user. The initial value of is automatically selected. At this time, the initial value can be set in accordance with the combination of the recording method and the recording mode set immediately before, or in accordance with the type of the attached cassette tape. In addition, some combinations selected and set in the past are stored, and if there is an executable one among them, it is set as an initial value, and if not, it is newly executable. Set the initial value from the combinations.

The recording method / recording mode combination setting means 17 instructs the recording method selecting means 15 and the recording mode selecting means 16 in accordance with the initial setting value or the selected setting value to select the changeover switch 9, the input signal processing means 10, and the tape. The traveling drive circuit 14 is controlled to supply a recording signal formatted to a recording method according to the selected combination set value to the rotary magnetic head device 3 so that the driving speed of the magnetic tape 4 becomes a speed corresponding to the driving speed. By controlling the rotation speed of No. 8, recording in the selected recording method-recording mode is realized.

FIG. 1 shows a state in which the analog recording system is selected. The input signal processing means 10 instructed by the recording method selection means 15 for the analog recording method supplies an analog video signal to the analog video signal processing means 11,
An analog audio signal is supplied to the analog audio processing means 12. Further, the changeover switch 9 instructed by the recording method selecting means 15 for the analog recording method inputs the analog audio signal converted into the recording format by the analog audio signal processing means 12 to the pair of magnetic heads 2a, 2b.

When the digital recording system is selected, the input signal processing unit 10 instructed by the recording system selection unit 15 to select the digital recording system supplies a digital video / audio signal to the digital signal processing unit 13. Further, the changeover switch 9 instructed by the recording method selection means 15 for the digital recording method supplies the digital video / audio signal converted into the recording format by the digital signal processing means 12 and outputted to the magnetic head pair 2a, 2b.

Next, a control processing flowchart and an operation panel when the recording method-recording mode combination setting means 17 for realizing such recording method-recording mode combination setting and selection by software using a microcomputer will be described. The display will be described with reference to FIGS.

FIG. 9 is a flowchart of a control process for implementing the setting and selection of the combination of the recording method and the recording mode.

In step 901, the recording format standard information as shown in FIG. 3 is obtained from the recording format standard information holding unit 21, a recording format-recording mode combination table is created, and setting is started.

In step 902, the cassette type information input from the cassette type detecting means 20 is confirmed. If the cassette type is other than S-VHS and D-VHS (V
HS), in step 903, the combination of digital recording methods is deleted (executable) and
Combination as shown in

In step 904, the copy protection information input from the copy protection detecting means 19 is confirmed. If digital copying is prohibited, the digital recording system is deleted in step 905 and
Combination as shown in

In step 906, copy protection information input from the copy protection detecting means 19 is confirmed. If the analog copy is prohibited, in step 907, the analog recording method is deleted and FIG.
Alternatively, a combination as shown in FIG.

In step 908, the input signal type identification information input from the input signal type detection means 22 is confirmed. In the case of the digital signal system, step 9
In step 09, a combination of the recording method and the recording mode that can be executed in the order in which the digital recording method is prioritized is set. If it is the analog signal system, step 910
In, the recording method-recording mode combinations that can be executed in the order in which the analog recording method is prioritized are arranged and set.
The rearrangement reference information can be arranged in an order close to the user's intention by using the cassette type information.

In step 911, the number of executable combinations is confirmed. If it is "0", a message "recording is not possible" is displayed in step 912.

In step 913, the recording selection switch 1
8 is selected, and each time a selection input is received, a selection is made to update the set value (recording method-recording mode combination) in accordance with the arrangement order of the settings.
, The recording method selecting means 1 according to the updated set value.
5 and the recording mode selection means 16 and a display panel (described later).

FIG. 10 is a front view of the video cassette tape recorder in this embodiment, and FIG. 11 is a diagram showing the progress of updating the display on the operation panel.

The liquid crystal display panel 101 has a recording method, a recording mode and a display function of "recording is not possible". The operation switch panel 102 includes the above-described recording selection switch 18. Reference numeral 103 denotes a cassette tape mounting window.

FIG. 11 exemplifies how the display on the liquid crystal display panel 101 is updated by the input of the recording selection switch 18 in step 913. The display surrounded by the rectangular frame is the execution combination display.

In the above embodiment, a video cassette tape recorder using a magnetic tape as a recording medium has been described. However, as another embodiment, a magneto-optical disk, a hard magnetic disk, a magnetic disk, an optical disk, a flash memory, etc. The same can be implemented in an apparatus using the storage element as a recording medium.

The reproduction can be carried out by applying a conventional reproducing means, and a detailed description thereof will be omitted.

[0053]

As described above, according to the present invention, an executable combination of a recording method and a recording mode is automatically set in consideration of the type of recording medium, copy protection information and standard information of the recording method. With a simple switch operation, a combination different from the initial setting can be selected. Furthermore,
Depending on the settings, if recording by the combination of the selected recording method and recording mode becomes impossible, if there is a combination that can be performed, it can be automatically changed to that combination. There is no need to select the combination of the method and the recording mode, and the recording timing is not missed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a video tape recorder according to the present invention.

FIG. 2 is a block diagram showing details of input signal processing in the video tape recorder shown in FIG.

FIG. 3 is a diagram illustrating an embodiment of a combination of a recording method and a recording mode.

FIG. 4 is a diagram showing another embodiment of a combination of a recording method and a recording mode.

FIG. 5 is a diagram illustrating another embodiment of a combination of a recording method and a recording mode.

FIG. 6 is a diagram showing another embodiment of a combination of a recording method and a recording mode.

FIG. 7 is a diagram showing another embodiment of a combination of a recording method and a recording mode.

FIG. 8 is a diagram showing another embodiment of a combination of a recording method and a recording mode.

FIG. 9 is a flowchart of a setting process executed by a recording mode-recording mode combination setting unit in the video tape recorder shown in FIG. 1;

FIG. 10 is a front view of the video cassette tape recorder shown in FIG.

11 is a diagram showing a display progress of an operation panel in the video cassette tape recorder shown in FIG.

FIG. 12 is a block diagram of a video / audio recording / reproducing apparatus of a conventional analog recording / reproducing method.

[Explanation of symbols]

1a, 1b: video recording magnetic head pair, 2a, 2b: audio recording magnetic head pair, 3 ... rotating magnetic head device, 4 ... magnetic tape, 7 ... pinch roller, 8 ... capstan, 9 ...
Changeover switch, 10 ... input signal processing means, 11 ... analog video signal processing means, 12 ... analog audio signal processing means, 13 ... digital video and audio processing means, 14 ... tape running drive circuit, 15 ... recording method selection means, 16 ... Recording mode selection means, 17: Recording method-recording mode combination setting means, 18: Recording selection switch, 19: Copy protection detection means, 20: Cassette type detection means, 21: Recording method standard information holding means, 22: Input signal Method detection means, 23, 24, 25 ... input terminal, 26 ... input selection block, 30 ... output selection block.

Claims (12)

[Claims] 1. A recording / reproducing apparatus having a function of recording / reproducing a signal in both an analog recording / reproducing method and a digital recording / reproducing method. Means, a recording medium type detecting means of a mounted recording medium, copy protection information detecting means, a recording method-recording mode combination setting means for setting a combination of a recording method and a recording mode capable of performing recording. , A recording selection switch, the recording method-recording mode combination setting means, a plurality of recording mode information in each recording method held in the standard information holding means, and recording medium type information detected by the recording medium type detecting means And the executable recording method and recording mode obtained by logically judging the copy protection information Set allowed, the recording selected based on the switch of the input signal, recording and reproducing apparatus is characterized in that so as to sequentially update the combination that has been set. 2. The recording medium according to claim 1, wherein the combination setting means sets the combination of the recording method and the recording mode which is not in a standard when the combination of the recording method and the recording mode is set. A recording / reproducing apparatus characterized in that it cannot be selected. 3. The recording medium according to claim 1, wherein said recording mode and recording mode combination setting means sets a physical combination of the recording method and the recording mode based on information representing the type of recording medium when the combination of the recording method and the recording mode is set. A recording / reproducing apparatus characterized in that it is not possible to select a combination of a recording method and a recording mode that cannot be executed in the same manner. 4. The recording method / recording mode combination setting means according to claim 1, wherein said recording method / recording mode combination setting means includes an automatic changing means for automatically changing to a feasible combination when a preset combination becomes impossible. A recording / reproducing apparatus characterized by the above-mentioned. 5. An apparatus according to claim 4, wherein said automatic changing means comprises:
A recording / reproducing apparatus characterized in that the combination of a recording method and a recording mode is automatically changed to an executable combination set before the combination becomes unexecutable. 6. An apparatus according to claim 4, wherein said automatic changing means comprises:
Setting storage means for storing some combinations of the recording method and the recording mode set in the past, and searching for the setting storage means to read out the past settings, and if there is setting storage of an executable combination, the combination is stored in the combination. A recording / reproducing apparatus that automatically changes to an executable combination if the setting is changed and there is no executable setting storage. 7. A recording method according to claim 1, wherein said recording method / recording mode combination setting means prevents a combination of a recording method and a recording mode from being selected based on information indicating copy prohibition or restriction. Playback device. 8. A digital camera according to claim 1, further comprising D / A conversion means for converting a digital input signal into an analog signal, and A / D conversion means for converting an analog input signal into a digital signal.
The recording method / recording mode combination setting means includes a D / A converter and an A / D converter according to the selected combination.
A recording / reproducing apparatus characterized by controlling a / D conversion means. 9. A recording / reproducing apparatus according to claim 1, wherein said recording method / recording mode combination setting means sets an initial value of a combination in accordance with a signal method of an input signal. 10. The recording method-recording mode combination setting means according to claim 1, wherein said recording method-recording mode combination setting means sets initial values and arrangement order of executable combinations in accordance with a signal method of an input signal. Recording and reproducing device. 11. A recording / reproducing apparatus according to claim 1, wherein said recording method / recording mode combination setting means sets an initial value of the combination in accordance with a type of a mounted recording medium. apparatus. 12. The recording method-recording mode combination setting means according to claim 1, wherein said recording method-recording mode combination setting means sets an initial value and a sequence of executable combinations in accordance with a type of a mounted recording medium. Recording / reproducing apparatus characterized by the above-mentioned.