JPH10257426A - Recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently perform KARAOKE recording and reproducing. SOLUTION: Image signals and voice signals are recorded in a recording medium 12 by a recording circuit 11. The recorded data are read and outputted by a reproducing circuit 13. A character input means 18 is provided for a user to input character data. The voice signal to be reproduced and the voice signal inputted from a microphone are mixedly outputted by a MIX circuit 16. The voice signal outputted by the reproducing circuit 13 and the voice signal outputted by the MIX circuit 16 are inputted and outputted while being switched by a voice switching circuit 17 under the control of microcomputer 15. When a recording operation is determined, the inputted image signals and voice signals are recorded in the empty area of recording area 12, and the inputted character data are recorded while being related with the data of its object. When a reproducing operation is determined, the microcomputer controls the switching circuit 17 so as to output the output of MIX circuit 16 mixing the reproduced voice signal and the voice signal inputted from the microphone in voice.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention realizes a so-called karaoke device or karaoke function for recording and reproducing image signals such as television images and video images, and speaking and singing along with the reproduced images using a microphone. It relates to a television receiver or a monitor.

[0002]

2. Description of the Related Art A conventional recording / reproducing apparatus will be described below.

FIG. 11 shows a configuration of a first embodiment of a conventional recording / reproducing apparatus. In FIG. 11, reference numeral 111 denotes a recording medium, 112 denotes a reproducing circuit, and 113 denotes a MIX circuit.

The recording medium 111 is a laser disk or the like.
Image data and audio data have already been recorded. The reproduction circuit 112 reads out image data and audio data recorded on the recording medium, converts the data into analog data, and outputs the analog data. The MIX circuit 113 mixes the audio signal output from the reproduction circuit 112 and the audio signal input from the microphone at a specific ratio and outputs the mixture.

FIG. 12 shows the configuration of a second embodiment of a conventional recording / reproducing apparatus. In FIG. 12, 121 is a recording circuit, 122 is a recording medium, 123 is a reproducing circuit, and 124 is M
IX circuit.

[0006] The recording circuit 121 receives an audio signal and writes it into the recording medium 122. The recording medium 122 is, for example, a magnetic tape. The reproduction circuit 123 is a recording medium 122
And reads and outputs the audio data recorded in the. M
The IX circuit 124 mixes the audio signal output from the reproduction circuit 123 and the audio signal input from the microphone at a specific ratio and outputs the mixture.

FIG. 13 shows a configuration of a third embodiment of a conventional recording / reproducing apparatus. 131 is a recording circuit, 132 is a recording medium, 133 is a reproducing circuit, 134 is a microcomputer, 135
Is a character input device.

A recording circuit 131 receives an image signal and an audio signal, converts the signal into a digital signal, and writes the digital signal on a recording medium 132. The recording medium 132 is, for example, a hard disk or the like. The reproduction circuit 133 reads out the image data and the audio data recorded on the recording medium 132, converts them to analog, and outputs them.

The microcomputer 134 controls the recording circuit 131 and the reproducing circuit 133 and manages data to be recorded on a recording medium. When writing to a recording medium, character data input from a character input device such as a keyboard, image data, and audio data are recorded in association with each other. In the case of reproducing, after selecting and determining the recorded character data, the associated image data and audio data are output.

[0010]

However, the above-described configuration has the following problems. (1) Since an image signal or an audio signal is reproduced from a read-only recording medium and an audio signal from a microphone is mixed and output to the audio signal, the user cannot record the signal independently. (2) The audio signal is recorded on the recording medium by the recording circuit, and the audio signal reproduced by the reproducing circuit and the audio signal from the microphone are mixed and output. However, since the image signal cannot be recorded, the audio signal is not recorded. Only output. (3) The image signal and the audio signal are recorded on the recording medium. However, since the data recorded on the recording medium is not managed by the apparatus itself, when reproducing, the place where the user himself is recorded. The trouble of searching for is generated. (4) The image signal and the audio signal are managed and recorded, but whether or not the audio signal reproduced from the recording medium is output as a MIX with the audio signal from the microphone is determined when the reproduction is determined. , The user is conscious of making the selection. (5) An image signal and an audio signal are recorded. However, a large amount of data of the image signal requires a large capacity of a recording medium.

An object of the present invention is to provide a recording / reproducing apparatus which solves the above-mentioned conventional problems.

[0012]

According to the present invention, in order to solve the above problems (1) and (2), a recording medium capable of recording image data and audio data and having a sufficient capacity, And a recording circuit for recording audio data, thereby enabling recording of image data and audio data.

According to the present invention, when the user decides a recording operation, the image data and the audio data are recorded on a recording medium, and the input character data is the object. It is recorded on a recording medium in association with image data and audio data. When the user decides to perform the reproduction operation, the recorded character data is displayed, and the image data and the audio data associated with the character data selected and determined by the user are reproduced from the recording medium, so that the user can perform the reproduction operation. This saves the trouble of searching for the recorded location.

According to the present invention, in order to solve the above-mentioned problem (4), a case where a reproduced video signal is output according to a type of a reproducing operation determined by a user, and a case where a reproduced audio signal is output from an audio signal input from a microphone. By selecting the case of mixing and outputting, it is possible to reduce the trouble of selecting whether the output sound is a reproduced audio signal or a signal mixed with the audio signal from the microphone.

According to the present invention, in order to solve the above problem (5), a user selects a specific area in an image signal while viewing a display screen, and records an image signal corresponding to the selected area on a recording medium. Reduces the amount of image data to be recorded.

Further, a signal of a predetermined level or more is extracted from the luminance signal YC separated from the image signal, and the extracted luminance signal is recorded on a recording medium to reduce the amount of image data to be recorded.

The image processing apparatus further comprises means for detecting a temporal change in the extracted luminance signal. The image signal immediately after the change is recorded on a recording medium, and timing data indicating the recorded timing is recorded as an object. The amount of image data to be recorded is reduced by recording in association with the image signal.

Further, by making it possible to set the sampling level to an appropriate level and to set the degree of fluctuation for judging whether there is a temporal fluctuation to an appropriate level, less malfunction is caused. A luminance signal can be extracted.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention has a function of recording image data and audio data on a recording medium, and a function of reproducing image data and audio data recorded on the recording medium. A function of mixing and outputting reproduced audio data and an audio signal input from a microphone, a function of recording character data externally input to the recording medium, and displaying the recorded character data. Recording / reproducing apparatus having a function, when a user decides a recording operation, image data and audio data are recorded on the recording medium, and the input character data is image data and audio data which are the object. When the user decides the reproduction operation, the recorded character data is displayed, and the user selects the reproduction operation. The image data and the audio data associated with the determined character data are reproduced from the recording medium and the reproduced audio signal is output according to the type of the reproduction operation determined by the user. It is characterized in that it is possible to select the case of outputting mixed with the audio signal input from the, a recording medium capable of recording image data and audio data and having a sufficient capacity, The provision of a recording circuit for recording image data and audio data on a recording medium enables recording of image data and audio data. As a result, users can create their own karaoke software.

When the user decides on the recording operation, the image data and the audio data are recorded on the recording medium, and the input character data is associated with the target image data and the audio data on the recording medium. Record. When the user decides on the reproduction operation, the recorded character data is displayed, and the user records and reproduces the image data and sound data associated with the character data selected and decided by the user from the recording medium. This saves you from having to find the place where it is done.

When the user decides the karaoke reproducing operation, the reproduced audio signal is mixed with the audio signal input from the microphone and output. In addition, by controlling to output the reproduced audio signal when the normal reproduction is selected, it is possible to reduce the trouble of selecting whether the output audio is a reproduced audio signal or a signal mixed with the audio signal from the microphone. I have.

As a result, it is possible to simplify the work of the user to create the karaoke software independently and the work of singing the karaoke using the created karaoke software, as compared with the related art.
The operation of selecting between playing karaoke software and playing normal software can be simplified.

According to a second aspect of the present invention, there is provided a recording means for digitally converting an input image signal and an audio signal and recording the same on a recording medium, and reading out the image data and the audio data recorded on the recording medium, Playback means for converting and outputting; character input means for the user to input character data; on-screen display (hereinafter abbreviated as OSD) signals from predetermined font data or bitmap data; and OSD timing indicating the timing. An OSD generating means for generating and outputting a signal; an image signal output from the reproducing means;
A display switching means for receiving an SD signal and switching and outputting the signal under control of an OSD timing signal; and a sound mixing means for mixing and outputting a sound signal output from the reproducing means and a sound signal input from a microphone at a specific ratio. Means, control means for controlling the circuit, writing and reading data to and from the recording medium, and operating means for allowing a user to operate the recording / reproducing apparatus. When the user determines the karaoke recording operation by using the operation means, the recording means records the input image signal and audio signal in an empty area of the recording medium by the control means, and the user uses the operation means to select a music piece or the like. If it is decided to input the information of
The character input means is used to receive input of character data such as songs, and after the user inputs the character data, the input character data is associated with the target image data and audio data, and controlled by the control means. When recorded on a recording medium and the user decides the karaoke reproduction operation using the operation means, the character data of the already recorded music is read by the control means, and the content of the information is read by the OSD.
Display using the generating means, the user uses the operating means,
When a specific quantity is selected and determined from the contents of the information displayed by the OSD, the reproducing means reads out the image data and the audio data associated with the information under the control of the control means. Outputs a reproduced image signal, outputs a mixed signal of the reproduced audio signal and the audio signal input from the microphone, and outputs only the reproduced audio signal when the user decides on normal reproduction operation. It is.

According to a third aspect of the present invention, in the first or the second aspect of the present invention, in the image signal processing,
2. A device according to claim 1, further comprising means for allowing a user to select a specific area while viewing the display screen, and means for recording an image signal corresponding to the selected area on a recording medium. In addition to the functions described in the item 2, the user selects a specific area in the image signal while viewing the display screen, and records the image signal corresponding to the selected range on the recording medium, thereby reducing the amount of image data to be recorded. It has the effect of being able to reduce. , Recording and playback device.

The invention described in claim 4 is the first or second invention.
In the described invention, in image signal processing, means for YC-separating an image signal into a luminance signal and a color difference signal, means for extracting a signal of a predetermined level or more from the YC-separated luminance signal, and the first luminance extracted Means for recording a signal on a recording medium; and means for superimposing and outputting a second luminance signal by switching to a first luminance signal during a period of reproducing the first luminance signal. ,
According to a fifth aspect of the present invention, in the first aspect of the present invention, in the image signal processing, a means for extracting a signal of a predetermined level or more of a luminance signal obtained by YC-separating the image signal from the image signal is provided. A means for detecting a temporal variation of the extracted luminance signal, and recording the image signal immediately after the variation has occurred on a recording medium, and timing data indicating the recorded timing with the target image signal. In the case of providing a means for recording in association and reproducing,
The present invention is characterized in that the associated image data is sequentially output at the timing indicated by the timing data.
In the invention described above, means for detecting a temporal variation of the extracted luminance signal, and recording the extracted first luminance signal immediately after the fluctuation occurs on a recording medium,
Means for recording the timing data indicating the recorded timing in association with the target luminance signal is provided, and in the case of reproduction, the associated image data is sequentially output at the timing indicated by the timing data. According to Claims 4 and 6, in addition to the effects of Claims 1 and 2, data recorded in image data is limited to characters such as lyrics having a relatively high luminance level. Image data to be recorded can be reduced by compressing information to one bit.

In claim 5, claims 1 and 2
In addition to the above operation, the image data to be recorded can be reduced by limiting the data to be recorded when characters such as lyrics having a relatively high luminance level change.

As a result, the amount of storage data per unit music can be reduced, and the capacity of the storage medium can be reduced and the number of recordable music can be increased.

According to a seventh aspect of the present invention, in the fourth aspect, a sampling level setting means is provided so that a sampling level can be set to an appropriate level. In addition to the effects of 1, 2, 4, 5, and 6, an optimum threshold level can be set for a luminance signal to be extracted, so that a sampling error can be reduced.

The invention according to claim 8 is the invention according to claim 5 or 6, wherein the temporal fluctuation level is set so that the degree of fluctuation for judging whether there is temporal fluctuation can be set to an appropriate level. Means is provided, in addition to the effects of claims 1, 2, 5, and 6,
Since the optimum threshold level can be set for the luminance signal to be extracted, a recording / reproducing apparatus capable of reducing the sampling error can be realized.

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. The first embodiment corresponds to claims 1, 2, and 3.

In FIG. 1, reference numeral 11 denotes a recording circuit for digitally converting an input image signal and an audio signal and recording the digital signal on a recording medium. Reference numeral 12 denotes a recording medium such as a hard disk or an optical disk. A readout circuit 13 reads out the image data and the audio data recorded on the recording medium, converts them into analog signals, and outputs them.

Reference numeral 18 denotes character input means for the user to input character data, such as a keyboard or a software keyboard displayed on a screen.

An OSD generation circuit 14 generates and outputs an on-screen display (hereinafter abbreviated as OSD) signal and an OSD timing signal indicating its timing using predetermined font data or bitmap data and a color palette.

Reference numeral 20 denotes an image switching circuit which outputs an image signal output from the reproduction circuit 13 and an OS output from the OSD generation circuit 14.
The D signal is input, and is switched and output under the control of the OSD timing signal. Reference numeral 16 denotes a MIX circuit which mixes the audio signal output from the reproducing means and the audio signal input from the microphone at a specific ratio and outputs the mixed signal.

An audio switching circuit 17 receives an audio signal output from the reproduction circuit 13 and an audio signal output from the MIX circuit 16, and switches and outputs the signal under the control of the microcomputer 15 described later.

Reference numeral 15 denotes a microcomputer which controls the circuit and writes and reads data to and from a recording medium.

Reference numeral 19 denotes an operation device for a user to operate the recording / reproducing apparatus, such as a remote controller.

When the user decides the karaoke recording operation by using the operation device 19, the microcomputer 15 controls the karaoke recording operation.
The recording circuit 11 records the input image signal and audio signal in a free area of the recording medium 12.

At the same time, the user operates the operating device 19.
When it is determined that information such as a music piece is to be input by using the character input means 18, the character input means 18 is used to input character data such as a music piece under the control of the microcomputer.

After the user inputs the character data, the input character data is associated with the target image data and audio data and recorded on a recording medium under the control of the microcomputer.

FIG. 2 (a) shows an example of a method of associating them.
This will be described with reference to FIG. In FIG. 2A, a predetermined area on the recording medium is allocated for character data, and other areas are allocated for image data and audio data. Each area is divided by a predetermined number of music pieces.

The divided character data area and the image and audio data area have a relationship in advance. For example, character data that is the object of the area A in the image data and audio data areas in FIG. 2A is recorded in the area A in the character data area. In this way, if there is a relationship on the memory map in advance, the microcomputer reads the target image data when reading the character data,
It is possible to recognize the location where voice data exists. FIG. 2 (b)
Here is another example. The information of the start address and the end address where the character data and the target image data and audio data exist are recorded on a recording medium. As described above, the data itself is packed with relevance, and by reading the packed data, the location where the image data and the audio data which are the target of the character data exist can be recognized.

Next, a case where the user uses the operation device 19 to determine a karaoke reproducing operation. The character data of the music piece already recorded is read under the control of the microcomputer, and the contents of the information are displayed using the OSD generation circuit 14. FIG.
Shows an example of the display screen.

FIG. 3 shows character data of seven pieces of music, and is an example in which the character data of E is selected by the user.

When the user uses the operating device 19 to select and determine a specific quantity of the information displayed on the OSD, image data and audio data associated with the information are controlled by the microcomputer. Reproduction circuit 1
The microcomputer 3 controls the audio switching circuit 17 so as to read and output, output the reproduced image signal, and output the output of the MIX circuit 16 mixed with the reproduced audio signal and the audio signal input from the microphone. .

When the user decides the normal reproduction operation, the microcomputer controls the audio switching circuit 17 so as to output the reproduced audio signal.

The operation of claim 3 will be described with reference to FIG.
FIG. 4 is an example displayed on the screen.

The case of claim 3 can be realized by the same configuration as that of FIG. First, an area designated by the user is displayed on the screen using the OSD display. The setting range of the area can be changed using the operating device 19.

The setting range of the user in FIG. 4 corresponds to the setting range. Although this range is designated by the OSD in FIG. 4, any method may be used as long as the region can be identified.
When the user determines the set range, the microcomputer calculates the range of the image signal corresponding to the range from the coordinates on the image and outputs the result to the recording circuit. X shown in FIG.
1, X2 dots and Y1, Y2 lines correspond. The recording circuit records on the recording medium based on the result. FIG.
In the case of, only the setting range of the user is recorded.

The recording / reproducing apparatus configured as described above
By providing a recording medium capable of recording image data and audio data and having a sufficient capacity, and a recording circuit for recording the image data and audio data in the recording medium, the recording of image data and audio data is enabled. When the user decides the recording operation, the image data and the audio data are recorded on the recording medium, and the input character data is recorded on the recording medium in association with the target image data and the audio data. If the user decides to play, the recorded character data is displayed,
Image data and audio data associated with the character data selected and determined by the user are reproduced from the recording medium, thereby reducing the trouble of the user searching for the recorded location.

When the user decides the karaoke reproducing operation, the reproduced audio signal is mixed with the audio signal input from the microphone and output. In addition, by controlling to output the reproduced audio signal when the normal reproduction is selected, it is possible to reduce the trouble of selecting whether the output audio is a reproduced audio signal or a signal mixed with the audio signal from the microphone. I have. Further, in the image signal, the user selects a specific area while viewing the display screen, and records an image signal corresponding to the selected range on a recording medium, thereby reducing the amount of image data to be recorded.

In the present embodiment, when recording or reproducing an image signal or an audio signal, compression and decompression are also applied.

(Embodiment 2) Next, a second embodiment of the present invention will be described with reference to the drawings. The second embodiment corresponds to claims 4 and 7.

FIG. 5 shows only the image portion of the second embodiment, and the audio portion is omitted because it is the same as that of FIG. The same applies to the character input means, the display means, and the operation device, so that the description is omitted.

In FIG. 5, reference numeral 51 denotes a YC separation circuit which inputs a first image signal and outputs a luminance signal and a chrominance signal separated by YC. 52 is a recording circuit. Reference numeral 53 extracts data at a predetermined level or higher of the luminance data input by the extraction circuit. The extracted data part and the rest are converted into 1-bit data indicating whether or not the data level is equal to or higher than a predetermined level, and written to the recording medium 54.

Reference numeral 54 denotes a recording medium such as a hard disk or an optical disk. A readout circuit 55 reads out the luminance data and the audio data recorded on the recording medium, converts them into analog signals, and outputs them.

Reference numeral 56 denotes an image switching circuit which switches between the luminance signal output from the reproduction circuit 55 and the luminance signal output from the YC separation circuit 51 at the timing of the luminance signal output from the reproduction circuit 55 and outputs the same. This realizes superimposed display of the reproduced luminance signal with respect to the displayed second luminance signal.

Reference numeral 59 denotes a microcomputer which controls the circuit and writes and reads data to and from a recording medium.

Next, the operation of the second embodiment will be described with reference to FIG. When the user decides the karaoke recording operation by using the operation device, the recording circuit 52 inputs a luminance signal as shown in FIG. 6A under the control of the microcomputer 59, and the luminance signal shown in FIG. Data at or above the threshold level as shown in a) is extracted. The result is converted into 1-bit data of FIG. 6B indicating whether or not the result is equal to or higher than the threshold level, and is recorded in a free area of the recording medium 54 together with the audio data. At the same time, if the user decides to use the operating device to enter information such as songs,
Under the control of the microcomputer, the character input means is used to input character data such as a piece of music.

As in the first embodiment, the character data is recorded in association with the luminance data and the audio data as the object. The reproduction circuit 55 reads out and outputs luminance data and audio data as in the first embodiment.

The luminance signal shown in FIG. 6C output from the reproduction circuit 55 and the second luminance signal output from the YC separation circuit shown in FIG. Is switched to the luminance signal output from the reproduction circuit 55 during the period of the luminance signal output by the superimposing circuit.
The output is shown in FIG.

The recording / reproducing apparatus configured as described above has the effect obtained in the first embodiment, and further restricts the data to be recorded to characters such as lyrics having a relatively high luminance level, and compresses the information into one bit. By doing so, the image data to be recorded can be reduced.

(Embodiment 3) Next, a third embodiment of the present invention will be described with reference to the drawings. The third embodiment corresponds to claim 5.

FIG. 7 shows only the image part of the third embodiment, and the sound part is omitted because it is the same as that of the first embodiment. The same applies to the character input means, the display means, and the operation device, so that the description is omitted.

In FIG. 7, reference numeral 71 denotes an YC separation circuit which inputs an image signal and outputs a YC separated luminance signal and a color signal. 72 is a recording circuit. Reference numeral 73 extracts data of the luminance data input by the extraction circuit that is equal to or higher than a predetermined level.

Reference numeral 74 detects a temporal change in the luminance signal extracted by the motion detection circuit, and outputs a detection signal indicating whether or not the luminance signal has changed. A write circuit 75 inputs an image signal and records the image signal immediately after the fluctuation of the extracted luminance signal on the recording medium by controlling the detection signal.
A recording medium 76 is a hard disk, an optical disk, or the like. A reproducing circuit 77 reads out the image data and the audio data recorded on the recording medium, converts them into analog signals, and outputs them.

Reference numeral 78 denotes a microcomputer which controls the circuit and writes and reads data to and from a recording medium.

When the user decides the karaoke recording operation by using the operation device, the recording circuit 72 records the audio signal on the recording medium 76 and causes the extracted luminance signal to change with time under the control of the microcomputer 78. The image signal is recorded at the same timing, that is, at the timing of the detection signal output from the motion detection circuit 74. The microcomputer 78 inputs the detection signal output from the motion detection circuit 74, associates the timing at which the motion of the detection signal is detected with timing data for writing image data, associates the timing with the target image data, and controls the microcomputer. Record on a recording medium.

Examples of the timing data include a clock and a result of measuring a pulse of a specific cycle. At the same time, if the user decides to input information such as a music piece using the operating device, the microcomputer controls the character input means to input character data such as the music piece.

After the user inputs the character data, the input character data is associated with the target image data and audio data and recorded on the recording medium under the control of the microcomputer.

FIG. 9 shows an example of how to associate the data.
This will be described with reference to FIG. In FIG. 9, a predetermined area on the recording medium is assigned for character data, another predetermined area is assigned for timing data, and other areas are assigned for image data and audio data.

Each area is divided by a predetermined number of music pieces. The area of the image data and the timing data is further divided by a predetermined number of recordable still images.

The divided character data area, timing data area, image and audio data area are associated in advance. For example, character data that is the object of the area A in the image data and audio data areas in FIG. 9 is recorded in the area A in the character data area. The target timing data is recorded in the area A in the timing data area. If the relationship is previously stored on the memory map as described above, the microcomputer can recognize the location of the target timing data, image data, and audio data when the character data is read.

The image data area and the timing data area which are further divided have a relationship in advance. If the relevance is previously stored on the memory map, the microcomputer can recognize the target image data when the timing data is read.

FIG. 10 shows another example. Packing of information on the start address and end address where the character data and the audio data as the target exist, and the timing data in each still image as the target image data and information on the start address and the end address where the image data exist. And record it on a recording medium. As described above, the microcomputer reads the relevant packing data so that the locations where the image data, timing data, and audio data which are the target of the character data are present can be recognized.

Next, a case where the user decides the karaoke reproducing operation by using the operation device. The character data of the already recorded music is read under the control of the microcomputer, and the contents of the information are displayed using the OSD generation circuit.

When the user uses the operating device to select and determine a specific quantity of the information displayed on the OSD, the reproducing circuit 77 reads out the audio data associated with the information and determines the audio data. The target images are sequentially read at the timing of the timing data. The microcomputer controls the audio switching circuit so as to output the reproduced image signal and output the audio of the output of the MIX circuit mixed with the reproduced audio signal and the audio signal input from the microphone.

When the user decides the normal reproduction operation, the microcomputer controls the audio switching circuit so as to output the reproduced audio signal.

The recording / reproducing apparatus configured as described above has an effect to be obtained by limiting the data to be recorded when the characters such as lyrics having a relatively high luminance level change, in addition to the effects obtained in the first embodiment. Data can be reduced.

(Embodiment 4) Next, a fourth embodiment of the present invention will be described with reference to the drawings.

The third embodiment corresponds to claim 6. FIG. 8 shows only the image part of the fourth embodiment, and the sound part is omitted because it is the same as that of the first embodiment. The same applies to the character input means, the display means, and the operation device, so that the description is omitted.

In FIG. 8, reference numeral 81 denotes an image signal input to a YC separation circuit, which outputs a luminance signal and a color signal separated by YC. 82 is a recording circuit. A sampling circuit 83 extracts data at a predetermined level or higher of the luminance data input by the sampling circuit.

Reference numeral 84 denotes a temporal change in the luminance signal extracted by the motion detection circuit, and outputs a detection signal indicating whether or not the change has occurred. Reference numeral 85 denotes a timing immediately after a change in the luminance signal extracted by the control of the detection signal occurs, wherein the luminance data obtained by converting the data part extracted by the writing circuit and the other part into 1-bit data indicating whether or not the level is equal to or higher than a predetermined level is generated. Is written to the recording medium 54.

Reference numeral 86 denotes a recording medium such as a hard disk or an optical disk. A readout circuit 87 reads out the luminance data and the audio data recorded on the recording medium, converts them into analog signals, and outputs them.

Reference numeral 89 denotes an image switching circuit which switches the luminance signal output from the reproduction circuit 87 and the luminance signal output from the YC separation circuit 81 at the timing of the luminance signal output from the reproduction circuit 87 and outputs the same. This realizes superimposed display of the reproduced luminance signal with respect to the displayed second luminance signal.

A microcomputer 88 controls the above circuit and writes and reads data to and from a recording medium.

When the user decides the karaoke recording operation by using the operation device, the recording circuit 82 records the audio signal on the recording medium 86 and causes the extracted luminance signal to change with time under the control of the microcomputer 88. At the timing, that is, at the timing of the detection signal output from the motion detection circuit 84, the extracted data part and the other part are recorded as 1-bit data indicating whether or not the luminance is equal to or higher than a predetermined level. The microcomputer 78 inputs a detection signal output from the motion detection circuit 84, associates the timing of detecting the motion of the detection signal with timing data for writing image data, associates the timing with the target image data, and controls the microcomputer. Record on a recording medium.

Examples of the timing data include a clock and a result of measuring a pulse of a specific cycle.

At the same time, if the user decides to input information such as music using the operation device, the microcomputer controls the character input means to enter character data such as music.

After the user inputs the character data, the input character data is associated with the target image data and audio data and recorded on the recording medium under the control of the microcomputer. The way of associating the data is the same as in the third embodiment, and a description thereof will be omitted.

Next, a case where the user decides the karaoke reproduction operation using the operation device. The character data of the already recorded music is read under the control of the microcomputer, and the contents of the information are displayed using the OSD generation circuit.

When the user uses the operating device to select and determine a specific quantity from the contents of the information displayed on the OSD, the reproducing circuit 87 reads out the audio data associated with the information and associates it with the information. The target images are sequentially read at the timing of the timing data. The microcomputer controls the audio switching circuit so as to output the reproduced image signal and output the audio of the output of the MIX circuit mixed with the reproduced audio signal and the audio signal input from the microphone.

When the user decides the normal reproduction operation, the microcomputer controls the audio switching circuit so as to output the reproduced audio signal.

The recording / reproducing apparatus configured as described above has the effect obtained in the first embodiment, and further restricts the data to be recorded to lyrics having a relatively high luminance level and compresses the information of the data to be recorded into one bit. In addition, the image data to be recorded can be reduced by limiting the time when the character is changed.

(Embodiment 5) Next, a fifth embodiment of the present invention will be described with reference to FIG. 5, FIG. 7, or FIG. The fifth embodiment corresponds to claim 7.

In the sampling circuit shown in FIG. 5, FIG. 7, or FIG. 8, a register for setting the sampling level of the luminance signal is provided, and the sampling level of the luminance signal is determined based on the set value.

The data of the register for setting the sampling level is written under the control of the CPU.

The recording / reproducing apparatus configured as described above can set an optimum threshold level for a luminance signal to be extracted, in addition to the effects obtained in the second, third, or fourth embodiment. Therefore, the sampling error can be reduced.

(Embodiment 6) Next, a sixth embodiment of the present invention will be described with reference to FIG. 7 or FIG. Sixth
The embodiment of the present invention corresponds to claim 8.

In the motion detection circuit shown in FIG. 7 or FIG. 8, a fluctuation level setting register for judging whether there is a temporal fluctuation is provided, and a level for judging whether there is a fluctuation in motion detection is determined based on the set value. To

The data in the register for setting the temporal fluctuation level is written under the control of the CPU.

The recording / reproducing apparatus configured as described above has the effect obtained in the third or fourth embodiment.
Since an optimal motion detection level can be set in motion detection for determining whether there is a temporal variation, a motion detection error can be reduced.

[0103]

As described above, the recording / reproducing apparatus of the present invention is
According to the first and second aspects, by providing a recording medium capable of recording image data and audio data and having a sufficient capacity, and a recording circuit for recording the image data and audio data on the recording medium, the image data and the audio data can be recorded. Recording is enabled. As a result, users can create their own karaoke software.

When the user decides to perform a recording operation, the image data and the audio data are recorded on the recording medium, and the input character data is associated with the target image data and the audio data on the recording medium. Record. When the user decides on the reproduction operation, the recorded character data is displayed, and the user records and reproduces the image data and sound data associated with the character data selected and decided by the user from the recording medium. This saves you from having to find the place where it is done.

When the user decides the karaoke reproducing operation, the reproduced audio signal is mixed with the audio signal input from the microphone and output. In addition, by controlling to output the reproduced audio signal when the normal reproduction is selected, it is possible to reduce the trouble of selecting whether the output audio is a reproduced audio signal or a signal mixed with the audio signal from the microphone. I have.

As a result, the task of creating a karaoke software by the user and singing the karaoke using the created karaoke software can be simplified.
The operation of selecting between playing karaoke software and playing normal software can be simplified.

In claim 3, claims 1 and 2
In addition to the effect of the above, the user can select a specific area in the image signal while viewing the display screen, and record the image signal corresponding to the selected range on the recording medium to reduce the amount of image data to be recorded. Can be.

According to the fourth and sixth aspects, in addition to the effects of the first and second aspects, data recorded in image data is limited to characters such as lyrics having a relatively high luminance level.
By compressing the information to one bit, the image data to be recorded can be reduced.

Further, in claim 5, claims 1 and 2
In addition to the effect described above, the image data to be recorded can be reduced by limiting the data to be recorded when characters such as lyrics having a relatively high luminance level change.

As a result, the storage data amount per unit music can be reduced, and the capacity of the storage medium can be reduced and the number of recordable music can be increased.

In claim 7, claim 1, claim 1,
In addition to the effects of 2, 4, 5, and 6, an optimum threshold level can be set for a luminance signal to be extracted, so that a sampling error can be reduced.

In claim 8, claim 1, claim 1,
In addition to the effects of 2, 5, and 6, an optimum threshold level can be set for a luminance signal to be extracted, so that a recording / reproducing apparatus that can reduce an extraction error can be realized.

[Brief description of the drawings]

FIG. 1 is a block diagram according to a first embodiment of the present invention;

FIG. 2 is an operation explanatory diagram according to the first embodiment of the present invention;

FIG. 3 is an operation explanatory diagram according to the first embodiment of the present invention;

FIG. 4 is an operation explanatory diagram according to the first embodiment of the present invention;

FIG. 5 is a block diagram according to a second embodiment of the present invention.

FIG. 6 is an operation explanatory diagram according to the second embodiment of the present invention.

FIG. 7 is a block diagram according to a third embodiment of the present invention.

FIG. 8 is a block diagram according to a fourth embodiment of the present invention.

FIG. 9 is an operation explanatory diagram according to the third embodiment of the present invention.

FIG. 10 is an operation explanatory diagram according to the third embodiment of the present invention.

FIG. 11 is a conventional block diagram.

FIG. 12 is a conventional block diagram.

FIG. 13 is a conventional block diagram.

[Explanation of symbols]

 11, 52, 72, 82 Recording circuit 13, 55, 77, 87 Reproduction circuit 12, 54, 76, 86 Recording medium 14 OSD generation circuit 15 Microcomputer 20 Image switching circuit 16 MIX circuit 17 Voice switching circuit 18 Character input means 19 Operating devices 51, 71, 81 YC separation circuit 53, 73, 83 Extraction circuit 74, 84 Motion detection circuit

Claims (8)

[Claims] 1. A function of recording image data and audio data on a recording medium, a function of reproducing image data and audio data recorded on the recording medium, and reproduced audio data and audio input from a microphone. A recording / reproducing apparatus having a function of mixing and outputting a signal, a function of recording character data input externally on the recording medium, and a function of displaying the recorded character data. When the operation is determined, the image data and the audio data are recorded on the recording medium, and the input character data is recorded on the recording medium in association with the target image data and the audio data. If the character data is determined, the recorded character data is displayed and the data associated with the character data selected and determined by the user is displayed. Reproducing the image data and the audio data from the recording medium and outputting the reproduced audio signal according to the type of the reproduction operation determined by the user, and mixing the reproduced audio signal with the audio signal input from the microphone. A recording / reproducing apparatus which can select whether to output the data. 2. A recording means for digitally converting an input image signal and an audio signal and recording the same on a recording medium, and a reproducing means for reading out the image data and the audio data recorded on the recording medium, and then converting the analog data and outputting the analog data. A character input means for inputting character data by a user, and an OD for generating and outputting an on-screen display (hereinafter abbreviated as OSD) signal and an OSD timing signal indicating the timing from predetermined font data or bitmap data.
An SD generation unit, an image signal output from the reproduction unit, and an OSD signal output from the OSD generation unit;
Display switching means for switching and outputting under control of the D timing signal; audio mixing means for mixing and outputting the audio signal output from the reproducing means and the audio signal input from the microphone at a specific ratio; A recording / reproducing apparatus comprising: control means for performing control and writing / reading of data to / from the recording medium; and operating means for allowing a user to operate the recording / reproducing apparatus. 3. The image signal processing device according to claim 1, further comprising means for a user to select a specific area while viewing the display screen, and means for recording an image signal corresponding to the selected area on a recording medium. 3. The recording / reproducing apparatus according to claim 1, wherein 4. A means for YC-separating an image signal into a luminance signal and a color difference signal in image signal processing, a means for extracting a signal having a predetermined level or more from the YC-separated luminance signal, and a first luminance extracted from the YC-separated luminance signal 2. A device according to claim 1, further comprising means for recording the signal on a recording medium, and means for superimposing and outputting the second luminance signal by switching to the first luminance signal during a period of reproducing the first luminance signal. Or 2
The recording / reproducing apparatus as described in the above. 5. In the image signal processing, the image signal is converted to YC
Means for extracting a signal of a predetermined level or higher from the separated luminance signal, and means for detecting a temporal variation of the extracted luminance signal are provided, and an image signal immediately after the variation is recorded on a recording medium. In addition, a means for recording the timing data indicating the recorded timing in association with the target image signal is provided, and when reproducing, the associated image data is sequentially output at the timing indicated by the timing data. The recording / reproducing apparatus according to claim 1, wherein the recording / reproducing apparatus is performed. 6. A means for detecting a temporal change in a sampled luminance signal, and recording the sampled first luminance signal immediately after the change has occurred on a recording medium and indicating the timing of the recording. Means for recording the timing data in association with the target luminance signal, and when reproducing, sequentially output the associated image data at the timing indicated by the timing data. Item 5. The recording / reproducing device according to Item 4. 7. The recording / reproducing apparatus according to claim 4, wherein a sampling level setting means is provided so that the sampling level can be set to an appropriate level. 8. The recording according to claim 5, wherein a temporal fluctuation level setting means is provided so that the degree of fluctuation for judging whether there is temporal fluctuation can be set to an appropriate level. Playback device.