KR100327723B1 - Apparatus for playback Audio/Video of TV and method thereof - Google Patents

Abstract

The present invention stores a desired character or voice in a separate memory, and displays the character selected by the user overlaps the normal received image, and the user selected voice is to be transmitted through the speaker video / audio playback device And a method for retrieving a key operated by a user, and performing a general video / audio reproducing operation if the search result is a general television operation key, and the search result is a special key. If it is a text / voice playback key, the user selects text and voice selected from the auxiliary memory, and the extracted text data is transmitted to the text decoder, and the extracted voice signal is transmitted to the voice switch unit. Then, the text data transmitted from the text decoder is decoded, and the text data selected by the user is transmitted to the video processor to be controlled so that the received video is overlapped with the received video and outputted on the screen. Controls the signal to be sent through the speaker.

Description

Apparatus for playback Audio / Video of TV and method

The present invention relates to video and audio playback of a television, and particularly, to store desired text or audio in a separate data storage medium, and to display the selected text by overlapping the general received video. The present invention relates to a video / audio reproducing apparatus and a method thereof for transmitting television through a speaker.

More specifically, text and voice data, such as Islamic scriptures (Koran), Buddhist scriptures, and the Bible, can be stored in a separate data storage medium through communication, or a general television and a device that transmits text and voice through a communication device. In the connected state, when selected by the user, characters stored in a separate data storage medium overlap the normal received video so that they are displayed as subtitles on the screen, and audio is transmitted through a television speaker, It is about a method.

In general, a television separates an image and an audio from a broadcast signal received through an antenna or a wire, displays the separated image on a screen, and transmits the separated audio to the outside through a speaker.

1 is a diagram showing the configuration of a video / audio reproducing apparatus of a general television which performs the above functions.

Here, reference numeral 1 denotes a key input unit for generating a key signal corresponding to a key, such as a channel selection key and a volume control key, provided in the main body of the television, and reference numeral 2 denotes each key provided in the remote controller. (Channel selection key, volume control key, etc.) indicates a remote control signal receiver for receiving an infrared signal generated by the operation and converting the signal into a signal that the microcomputer 4 can recognize. , A memory for storing a time or a channel set by a user when selecting a function such as a sleep function, and a reference numeral 4 indicates tuning and data according to a key signal obtained from the key input unit 1 or a remote control signal receiver 2. Represents a microcomputer that controls functions such as storage, closed captioning, and voice muting.

In addition, reference numeral 5 denotes an antenna for receiving a broadcast signal transmitted wirelessly (in the case of a wired wire, a connector is required instead of an antenna), and reference numeral 6 denotes a microcomputer ( The tuner tuned according to the tuning voltage obtained in 4) is shown.

Further, reference numeral 7 denotes an image processor which processes only the video signal from the broadcast signal obtained by the tuner 6, and processes the received video signal by overlapping the text data obtained by the microcomputer 4 with the reference video signal. Extract vertical and horizontal synchronizing signals from the image signal obtained by the image processor 7 and provide the extracted vertical and horizontal synchronizing signals to the CRT 10 at the rear end so that vertical and horizontal deflection are properly performed. The reference numeral 9 denotes a synchronization processor, and the reference numeral 9 denotes an image amplifier which amplifies the image signal obtained by the image processor 7 to a predetermined level and delivers the image signal to the CRT 10.

Reference numeral 11 denotes a voice processor which extracts only a voice signal from the broadcast signal obtained by the tuner 6 and then processes the voice signal appropriately. Reference numeral 12 denotes amplifying the voice signal processed by the voice processor 11 to a predetermined level. A voice amplifier is shown, and reference numerals 13 and 14 denote speakers for transmitting a stereo voice signal to the outside.

In the video / audio reproducing apparatus of a general television configured as described above, when a user selects a channel or adjusts a volume by operating a key provided in the main body of the television set, the key input unit 1 responds to the operation of the corresponding key. The key signal is generated and transmitted to the microcomputer 4.

On the contrary, when a user selects a channel or adjusts a volume by operating a key provided in the remote controller, the remote controller signal receiver 2 receives the corresponding infrared rays and converts the signal into a signal that the microcomputer 4 can recognize. The transfer to the microcomputer (4).

When the key signal is input as described above, the microcomputer 4 analyzes the input key signal and performs a control operation corresponding to the analyzed key signal.

For example, if the input key signal is a volume control signal, although not shown in the drawing, the volume control unit is controlled to adjust the height and height of the currently output voice signal, and if the input key signal is a channel selection signal, The corresponding tuning voltage is transmitted to the tuner 6 so that the corresponding channel is selected.

Meanwhile, in the case of channel selection as described above, the tuner 6 tunes the broadcast channel received from the antenna 5 according to the tuning voltage according to the tuning voltage to output only the broadcast signal of the channel selected by the user.

In this case, when the output broadcast signal is closed caption broadcasting, the text data is transmitted to the microcomputer 4, and the microcomputer 4 decodes the transmitted text data into OSD data to the image processor 7 and transmits the microcomputer ( 4) stores data generated during data processing in the memory 3.

The image processor 7 extracts only an image signal from the broadcast signal obtained from the tuner 6, and when character data is generated, the image processor 7 overlaps the generated character data and the extracted image signal and transfers the image signal to the image amplifier 9. do. In addition, the image processor 7 transmits the vertical and horizontal synchronization signals extracted for synchronization during image signal processing to the vertical / horizontal synchronization processor 8.

The vertical / horizontal sync processor 8 processes the vertical and horizontal sync signals obtained by the image processor 7 and then supplies them to the CRT 10 so that the vertical and horizontal deflections are properly adjusted when displaying the video signal. do.

In addition, the image amplifier 9 amplifies the image signal obtained from the image processor 7 to a predetermined level, and then transfers the CRT 10 to the CRT 10 to display the transferred image signal. do. In this case, when the displayed image is caption broadcasting, the caption data and the image are displayed together.

Next, the voice processor 11 extracts only a voice signal from the broadcast signal output from the tuner 6 and processes the voice signal. The voice signal 11 is amplified to a predetermined level by the voice amplifier 12 and then two Through the speakers 13 and 14, each is sent out. Here, the two speakers 13 and 14 respectively function to separate and output left and right channel signals during stereo broadcasting.

The video / audio reproducing apparatus of such a general television has no problem in displaying an image on a screen and outputting an audio to a speaker after receiving a broadcast signal transmitted from a general broadcasting station, but is not limited to text and other characters transmitted through other communication media. The function of receiving voice data or selectively outputting the voice data to the screen and voice could not be performed.

The present invention provides a video / audio reproducing apparatus and method for reproducing text and audio data obtained by a user through communication or other storage media using a video / audio reproducing apparatus of a general television. The purpose is to provide.

More specifically, text and voice data, such as Islamic scriptures (Koran), Buddhist scriptures, and the Bible, can be stored in a separate data storage medium through communication, or a general television and a device that transmits text and voice through a communication device. In the connected state, when selected by the user, characters stored in a separate data storage medium overlap the normal received video so that they are displayed as subtitles on the screen, and audio is transmitted through a television speaker, The purpose is to provide a method.

1 is a view showing the configuration of a video / audio playback apparatus of a general television,

2 is a diagram showing the configuration of a video / audio playback apparatus of a television according to the present invention;

3 is a flowchart illustrating a video / audio playback method of a television according to the present invention.

<Explanation of symbols for the main parts of the drawings>

4: Micom 15: Data storage media

16: data decoder 17: voice switch unit

Hereinafter, described in detail with reference to the accompanying drawings, preferred embodiments of the present invention according to the technical spirit as described above.

2 is a diagram showing the configuration of a video / audio playback apparatus of a television according to the present invention.

Here, reference numeral 1 denotes a key input unit for generating a key signal corresponding to a key, such as a channel selection key and a volume control key, provided in the main body of the television, and reference numeral 2 denotes a key input unit of the remote controller. A remote control signal receiver which receives an infrared signal generated when a key (channel selection key, volume control key, etc.) is operated and converts the signal into a signal that can be recognized by the microcomputer 4 is indicated by reference numeral 3, which is reserved by the user. Represents a memory for storing a time or channel set by a user when selecting a function, a sleep function, etc., and reference numeral 4 denotes a tuning according to a key signal obtained from the key input unit 1 or the remote control signal receiving unit 2; Represents a microcomputer that controls functions such as data storage, closed captioning, and voice muting.

In addition, reference numeral 5 denotes an antenna for receiving a broadcast signal transmitted wirelessly (in the case of a wired wire, a connector is needed instead of an antenna), and reference numeral 6 denotes a microcomputer ( The tuner tuned according to the tuning voltage obtained in 4) is shown.

Further, reference numeral 7 denotes an image processor which processes only the video signal from the broadcast signal obtained by the tuner 6, and processes the received video signal by overlapping the text data obtained by the microcomputer 4 with the reference video signal. Extract vertical and horizontal synchronizing signals from the image signal obtained by the image processor 7 and provide the extracted vertical and horizontal synchronizing signals to the CRT 10 at the rear end so that vertical and horizontal deflection are properly performed. The reference numeral 9 denotes a synchronization processor, and the reference numeral 9 denotes an image amplifier which amplifies the image signal obtained by the image processor 7 to a predetermined level and delivers the image signal to the CRT 10.

Reference numeral 11 denotes a voice processor which extracts only a voice signal from the broadcast signal obtained by the tuner 6 and then processes the voice signal appropriately. Reference numeral 12 denotes a voice amplifier which amplifies the voice signal to a predetermined level. 14 denotes a speaker for transmitting a stereo audio signal to the outside.

This component is a basic component necessary for video / audio reproduction in the general television shown in FIG. 1, and its operation also works similarly to the operation already described in FIG.

However, the key input means or the remote controller is additionally provided with a special character / voice selection key for reproducing external text and voice, and the function of the microcomputer 4 is also capable of reproducing external text and voice. Is added.

The present invention provides a video / audio reproducing apparatus to which such a function is added, and a data storage medium 15 for storing voice and text data transmitted through an external communication medium or a storage medium, and internal data communication with the microcomputer 4. When a control signal is interfaced via the control signal and an output control signal for text and voice data stored in the data storage medium 15 is transferred from the microcomputer 4, the text data stored in the data storage medium 15 is transferred to the microcomputer ( 4) the data decoder 16 which overlaps the received image through the OSD, decodes the voice data stored in the data storage medium 15 into a voice signal, and generates a switching control signal to transmit the voice signal. And an audio signal output from the voice processor 11 according to a switching control signal output from the data decoder 16. Speech, sinhojung one output from the data decoder 16 is configured by including a sound switching unit 17 for transmission to the voice amplifying portion 12.

When the user selects a general television function, the video / audio reproducing apparatus according to the present invention configured as described above performs text broadcasting or the like by performing the usual functions as mentioned in the related art.

In the case of general television broadcasting, the voice switch unit 17 selects a voice signal output from the voice processor 11 and transmits the voice signal to the voice amplifier 12.

On the other hand, when the user operates a special character / voice selection key added separately, although not shown in the drawings, the microcomputer 4 recognizes this and the character selected by the user to the data decoder 16 through internal data communication. And a control signal so that voice can be transmitted.

The data decoder 16 receiving the control signal transmits text and voice data stored in the data storage medium 15 (for example, text data of the Koran and voice data corresponding to the text data in the case of the Koran, the Islamic scripture). Extract

Here, text and voice data stored in the data storage medium 15 may be obtained through data communication with an external communication medium and then stored in the data storage medium 15, and an external storage medium may be used as the data storage medium. In this case, the data decoder 16 may directly read the data recorded in the storage medium.

In addition, in the case of storing audio, a digital audio compression method is used so that it can be easily downloaded through a computer.

Among them, MP3 is a technology that applies only sound to MPEG, which is a video compression technology, and is generally referred to as MP3 by shortening MPEG AUDIO Layer-3. In other words, audio is compressed using the Audio Layer-3 compression method, which is already considered in MPEG. It can compress about 10 minutes to 1/11 than the WAVE file, which is an uncompressed ordinary sound file. The four-minute CD-quality WAVE sound file is about 40 Mbytes or larger, and if it is compressed in MP3 format, the capacity is less than 4 megabytes. Due to these advantages, the MP3 method is mainly used in audio processing. A brief description of the bit stream structure of an MP3 audio file includes a section in which index information is recorded after a voice data recording section, and a section in which voice data is recorded again after the index section.

Meanwhile, the data decoder 16 extracts text and voice data from the data storage medium 15, transfers the extracted text data to the microcomputer 4 through the internal data communication, and extracts the extracted voice data according to a compression scheme. The decoded signal is transmitted to the voice switch unit 17 as an analog voice signal. At this time, a switching control signal is applied to the voice switch unit 17 through a separate output port.

The microcomputer 4 converts the text data received from the data decoder 16 into an OSD signal and transmits the text data to the image processor 7, and the image processor 7 broadcasts the broadcast signal obtained from the tuner 6 as in the prior art. Extracts only the video signal, and overlaps the text data with the extracted video signal and transfers the image data to the image amplifier 9.

In addition, the vertical / horizontal synchronization processing unit 8 outputs the vertical / horizontal synchronization control signal to the CRT (vertical / horizontal synchronization control signal) so that vertical and horizontal synchronization is properly performed when displaying an image on the screen according to the vertical / horizontal synchronization signal obtained from the image processor 7. 10) to pass on. In addition, the image amplifying unit 9 adjusts the input image signal to a predetermined level and transmits the image signal to the CRT 10, thereby displaying images and characters through the CRT 10. Of course, the text data displayed here becomes the text data (for example, the Koran) stored in the data storage medium 15.

On the other hand, the voice switch unit 17 is a voice signal extracted from two voice signals input in accordance with a switching control signal output through a separate port of the data decoder 16, that is, the received broadcast signal obtained from the voice processor 11 And a voice signal obtained from the data decoder 16 among the voice signals obtained from the data decoder 16 and then transmitted to the voice amplifier 12. Then, the voice amplifier 12 amplifies the transmitted voice signal to a predetermined level and transmits each of the channels to the speakers 13 and 14 as a stereo voice signal, so that the voice signal is transmitted to the outside. Of course, in this case, the voice signal output to the outside is the voice signal for the Koran.

3 is a flowchart illustrating a video / audio playback method of a television according to the present invention.

As shown in the figure, a key operated by a user is searched, and if the search result is an operation key of a general television, a general video / audio playback operation is performed; and if the search result is a special character / audio playback key, Extracting texts and voices selected by a user from a data storage medium (S11 to S14); Transferring the extracted text data to a microcomputer and transferring the extracted voice signal to a voice switch unit (S15); Decoding character data transmitted from the character decoder and controlling the decoded user to transmit the decoded character data to the image processor so that the received character data is overlapped with the received image and output to the screen (S16 to S17); Controlling the voice switch unit to control the voice signal selected by the user to be transmitted through the speaker (S18 ~ S19).

The video / audio reproduction method of the television according to the present invention thus obtained first searches for a key operated by the user in step S11.

As a result of this search, if the key operated by the user is the function selection switch of the general television, the general video / audio reproduction operation is performed in step S13.

Next, as a result of checking whether or not the key operated by the user has operated a key for special character / voice reproduction in step S12, when the user has operated a special character / voice reproduction key, in step S14 the data storage medium Character and audio data selected by the user are extracted from (15).

The text data extracted in step S15 is transferred to the microcomputer 4 through the internal data communication, and the extracted voice signal is transferred to the voice switch unit 17.

In addition, in step S16, the text data transmitted to the microcomputer 4 is decoded into OSD data and transmitted to the image processor 7, and the image processor 7 transmits the text data transmitted to the video signal obtained from the tuner 6. The overlap is transmitted to the image amplifier 9. Then, in step S17, the image amplifier 9 transmits the transmitted image signal (including text data) to the CRT 10 so that the image is displayed on the screen. Of course, in this case, an image received through the antenna 5 is displayed, and a character selected by the user stored in the data storage medium 15 is displayed.

Next, in step S18, the voice switch unit 17 selects a voice signal output from the data decoder 16 and transmits the voice signal to the voice amplifier 12, and in step S19, the voice signal is amplified by the voice amplifier 12. The audio signal is transmitted through two speakers 13 and 14. Of course, even in this case, the transmitted voice becomes the voice selected by the user.

In the above description, the text data and the audio transmission timing are output in accordance with the timing synchronization signal of the video signal obtained from the received broadcast signal, thereby making it possible to match the timing of the displayed text data and the transmitted audio signal. Since this technique is not a special technique of the present invention, but a function basically provided in a general video / audio reproducing apparatus, detailed description thereof is omitted.

As described above, the present invention has been described only for the transmission of texts and voices of the Qur'an, the Islamic scripture, as an example. However, the present invention is not limited thereto, and the type of text and voice data stored in a data storage medium and an external communication medium are provided. The same applies to the downloaded text and voice.

The present invention is not limited to the above-described embodiments, and modifications may be made by those skilled in the art without departing from the spirit of the present invention. Therefore, the scope of the claims in the present invention will not be defined within the scope of the detailed description will be limited to the claims that will be described later.

According to the above-described 'video / audio playback apparatus and method of the present invention' of the present invention, the desired text data and audio data are transmitted through a communication with an external communication medium or an external storage medium. There is an advantage that can be displayed and transmitted by using a playback device.

With the advantages as is well known, there is an advantage that a general television can be used for educational multivision.

Claims (4)

In the video / audio playback apparatus of a television consisting of a microcomputer, a video processor, and an audio processor for controlling the entire system operation, A data storage medium for storing voice and text data transmitted through an external communication medium or storage medium; a) interface a control signal through internal data communication with the microcomputer, b) When the output control signal of the text and voice data stored in the data storage medium is transmitted from the micom, the text data stored in the data storage medium is transferred to the micom to overlap the received image through the OSD. c) decode and output voice data stored in the data storage medium; d) a data decoder for generating a switching control signal so that the decoded speech signal is transmitted; And a voice switch unit for selecting one of a voice signal output from the voice processor and a voice signal output from the data decoder according to a switching control signal output from the data decoder and transferring the selected voice signal to a voice amplifier. Video / Audio playback device. The video / audio reproducing apparatus of claim 1, wherein the data storage medium stores voice data compressed by a digital audio compression method when the voice data is stored. In the video / audio playback method of a television having a video processor, audio processor, If the user searches for a key operated by the user, and if the search result is an operation key of a general television, a general video / audio playback operation is performed; if the search result indicates that the key operated by the user is a special character / audio playback key, the user Extracting the selected text and voice; A second step of transferring the extracted text data to a microcomputer and transferring the extracted voice signal to a voice switch unit; A third step of controlling text data transmitted from the microcomputer to be output to the screen by overlapping the received video with the text processor; And a fourth step of controlling the voice switch unit to transmit a voice signal selected by a user through a speaker. The data storage medium of claim 1, wherein the data storage medium stores text data and voice data transmitted through an external communication medium or a storage medium, and in the case of storage of voice data, audio compressed by digital audio compression. And a video / audio reproduction method of a television.