JPH07141758A - Information recording device and information reproducing device - Google Patents

Abstract

PURPOSE:To synchronously output characters and other information by containing in coded characters and other coded information a multiplexer for multiplexing coded time information and structuring to coincide the outputting time of the character and of other information at the time of decoding. CONSTITUTION:Time information is coded by a time information encoder 10 based on an internal clock 9. The sound information and image information that have been coded, and the character code that has been marked with the information of kinds, size, color and position are multiplexed in their coded time information by a time information multiplexer 11, 12, 13, further multiplexed by a multiplexer 14 and recorded in a store media 15. The multiplex information read out from the store media 15 is demultiplexed, the time information is inputted in a circuit for controlling time information, each buffer memory where each information has been inputted is controlled based on this time information, and the sound information, image information and the characters are synchronously outputted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording apparatus and information for simultaneously recording and reproducing character information and other information such as video information and audio information, and handling and controlling the character and other information as independent information. The present invention relates to a playback device.

[0002]

2. Description of the Related Art Conventionally, a recording / reproducing apparatus for simultaneously recording / reproducing character information, video information and audio information has been proposed. For example, in Japanese Patent Laid-Open No. 3-228086, the background image information, the voice information that accompanies the song to be sung, and the character information that is the lyrics of the song are colored on the characters to be sung as the audio information progresses. It describes a video recording method of a karaoke video in which the portion to be sung can be immediately recognized even if the timing with the accompaniment is deviated by mixing it with the character information described above and recording it on a video recording medium. This video recording method will be described in detail with reference to FIG.

In FIG. 3, first, a video information supply device 30.
Generated video information, the character information supply device 31 generates character information and the character information colored by the color change device 32 into the character to be sung along with the progress of the voice information in the character information is mixed in the mixer 33. After being mixed by the mixer 35, the audio information as the accompaniment generated by the audio information supply device 34 is mixed by the mixer 35 and recorded by the recording / reproducing device 36 such as a video tape recorder. When the recording / reproducing device 36 is put into the reproducing state, the image information and the character information are displayed on the display 37, and the accompaniment is reproduced by the sounder 38. At this time, the character information sequentially changes from white to red in synchronization with the progress of the accompaniment music.

[0004]

However, in the above-mentioned conventional configuration, the character information, the video information, and the audio information do not have time information, and these information are independent information on the video recording medium. Is not recorded as
Although it had multiple pieces of information, it could only be treated as a single piece of information.

Therefore, an object of the present invention is to provide an information recording apparatus and an information reproducing apparatus capable of treating and controlling characters and other information as independent information.

[0006]

To achieve the above object, the present invention outputs a character encoder for encoding a character into a character code, an encoder for encoding other information, and a character. Time information encoder that encodes the time information to be output and the time information to which the other information should be output, and multiplexes the time information to be encoded with the encoded character and the encoded other information. A character decoder configured to have a time information multiplexer and decoding a character from a character code, a decoder decoding other information, and time information at which the character should be output. It is configured to have a time information control circuit that compares other information with time information to be output and controls so that the output times of the character and the other information become the same.

Further, the character encoder is configured to have an imposing circuit for controlling the output of the character decoder so as to output or not to output, and the character encoder has a character code, in addition to character type information, The character decoder is configured to encode size information, color information, and position information, and the character decoder includes character type information, size information, color information, in addition to the character code.
The time information control circuit is configured to decode the position information, and the time information control circuit is configured to independently control the time information at which the character should be output and the time information at which the other information should be output. .

[0008]

According to the present invention having the above-described structure, the character and the other information which are independent of each other are synchronized and output by controlling the time information control circuit according to the respective time information, and the character is also output. Not to output or not to output, and the character has not only the character code but also the type, size, color and position information, and not only the character and other information are output in synchronization, The output time is independently controlled by referring to each time information.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an information recording apparatus in one embodiment of the present invention.

In FIG. 1, the audio information and the image information input from the audio information input terminal 1 and the image information input terminal 2 are A
After A / D conversion by the / D converters 3 and 4, the audio information encoder 5 and the image information encoder 6 encode the information. The character input from the keyboard 7 is encoded into a character code by the character encoder 8 together with the type information, size information, color information, and position information of the character input from the keyboard 7.

On the other hand, the time information is encoded by the time information encoder 10 based on the internal clock 9. The time information encoded by the time information multiplexers 11, 12, 13 is multiplexed on the character code to which the encoded audio information, image information, type information, size information, color information, and position information are added. Be converted. The audio information, the image information, and the character code in which the time information is multiplexed are multiplexed by the multiplexer 14 and then recorded in the storage medium 15.

At this time, the audio information encoder 5, the image information encoder 6, the character encoder 8, the time information encoder 10, the time information multiplexers 11, 12, 13, the multiplexer 14, and the storage Media 15
Is a system controller to perform the above-mentioned predetermined operations.
Controlled by 16.

FIG. 2 is a block diagram showing the configuration of the information reproducing apparatus in one embodiment of the present invention. The blocks common to FIG. 1 have the same numbers.

In FIG. 2, the multiplexed information read from the storage medium 15 includes audio information encoded by the demultiplexer 17, encoded image information, encoded type information, size information, and color. The information code and the position information are added to the character code, the encoded audio information time information, the encoded image information time information, and the encoded character code time information. Be plexed.

The voice information, the image information, and the character code are input to the buffer memories 18, 19, 20 and the time information is input to the time information control circuit 21. The time information control circuit 21 controls the buffer memories 18, 19, 20 based on the time information.

In the output mode in which the voice information, the image information and the characters are output synchronously, or the image information is stopped and the voice information and the characters are output synchronously, the system controller 16 operates according to the output mode designated by the user. It is specified for the time information control circuit 21.

The audio information, the image information, and the character code which are controlled by the time information control circuit 21 and are output from the buffer memories 18, 19, 20 at the proper time are the audio information decoder 22, the image information decoder. 23, which is decoded by the character decoder 24. The decoded image information and characters are input to the imposing circuit 25.

In the imposing circuit 25, in response to a command from the system controller 16, processing such as outputting both image information and characters or outputting only one of image information and characters is performed.

The outputs of the audio information decoder 22 and the imposing circuit 25 are D / A converted by the D / A converters 26 and 27, and then output from the audio information output terminal 28 and the image information output terminal 29. At this time, control of the entire system is performed by the system controller 16 as in the case of the information recording device.

Although the information recording device and the information reproducing device are shown separately in the above embodiment, it may be a device having only a recording system or a reproducing system or a device having a single recording and reproducing system. I do not care.

Further, the storage medium of the above embodiment may be an optical disk, a magnetic tape or the like. Further, in the present embodiment, the case of recording and reproducing on the storage medium has been described, but this may be a communication medium.

Further, in the above embodiment, the case where the image information and the character are combined and output is shown, but the image information output terminal and the character output terminal may be separately provided.

[0023]

As described above, according to the present invention, a character encoder that encodes a character into a character code, an encoder that encodes other information, time information when the character should be output, and other information. Time information encoder that encodes time information to which information should be output, and time information multiplexer that multiplexes encoded time information with encoded characters and other encoded information A character decoder for decoding a character from a character code, a decoder for decoding other information, a time information at which the character should be output, and other information. Character information that is independent information and other information by being configured to have a time information control circuit that compares the time information to be obtained and controls so that the output times of the character and other information are the same Synchronize and output It can be.

Further, the user can output both the character and other information by providing an imposing circuit for controlling the output of the character decoder so as to output or not to output. An operation such as outputting one can be arbitrarily performed.

Further, the character encoder is configured to encode character type information, size information, color information, and position information in addition to the character code, and the character decoder encodes other than the character code. In addition, by configuring to decode character type information, size information, color information, and position information, the character type, size, color, and position can be arbitrarily changed in synchronization with other information. Can be output.

Further, the time information control circuit is configured to control the time information at which the character is to be output and the time information at which the other information is to be output independently, thereby synchronizing the character and the other information. Not only does it output
It is possible to control and output independently.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an information recording device in an embodiment of the present invention.

FIG. 2 is a block diagram showing the configuration of an information reproducing apparatus according to an embodiment of the present invention.

FIG. 3 is a block diagram of an information recording / reproducing apparatus in a conventional example.

[Explanation of symbols]

 5 Audio information encoder 6 Image information encoder 8 Character encoder 10 Time information encoder 11,12,13 Time information multiplexer 14 Multiplexer 15 Storage medium 16 System controller 17 Demultiplexer 18,19, 20 Buffer memory 21 Time information control circuit 22 Audio information decoder 23 Image information decoder 24 Character decoder 25 Imposing circuit

Claims (6)

[Claims] 1. A character encoder that encodes a character into a character code, an encoder that encodes other information, time information when the character should be output, and the other information. A time information encoder that encodes time information and
An information recording device, comprising: a time information multiplexer that multiplexes encoded time information with an encoded character and other encoded information. 2. The information recording apparatus according to claim 1, wherein the character encoder encodes character type information, size information, color information, and position information in addition to the character code. 3. A character decoder for decoding a character code into a character, a decoder for decoding other information, a time information at which the character should be output, and the other information. An information reproducing apparatus comprising: a time information control circuit that compares the time information and controls so that the output times of the character and the other information are the same. 4. The information reproducing apparatus according to claim 3, further comprising an imposing circuit for controlling the output of the character decoder so as to output or not to output. 5. The information reproducing apparatus according to claim 3, wherein the character decoder decodes character type information, size information, color information, and position information in addition to the character code. 6. The information reproducing apparatus according to claim 3, wherein the time information control circuit independently controls the time information when the character should be output and the time information when the other information should be output.