KR100868924B1 - Apparatus and method for playing audio and video in mobile phone - Google Patents

Abstract

An apparatus and a method for playing audio and video in a mobile phone are provided to allow a user to watch and listen to voice and video at a desired speed by receiving voice signal and component video signal and playing the signal as a command desired by a user. A receiving part(110) receives compound image signal including a voice signal and an video signal. A storage(150) stores the received compound image signal. An input part(120) inputs a start command for storing the received compound image signal to the storage and playing speed which exceed 1 X-speed. A separate unit(130) separates the received compound video signal and voice signal according to the input of the storage starting command through the input unit.

Description

Apparatus and Method for playing audio and video in mobile phone}

1 is a block diagram of an audio and video reproducing apparatus of a mobile phone of the present invention.

2 is a flowchart illustrating a method of reproducing voice and video of a mobile phone according to an embodiment of the present invention.

3 is an exemplary view illustrating a process of simultaneously storing and playing DMB broadcasts being received by a mobile phone according to an exemplary embodiment of the present invention.

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

110: receiver 111: microphone

112: camera 113: broadcasting receiver

114: communication unit 120: input unit

130: separation unit 140: compression / decompression unit

150: storage unit 160: conversion unit

170: processing unit 180: output unit

181: audio output unit 181: image output unit

190: control unit 200: RF communication unit

310: Menu 320: Information Window

321, 322, 323, 324 Message 330 OK

The present invention relates to an apparatus and method for reproducing voice and video of a mobile phone, and in particular, according to a user's needs while listening to or watching a voice signal or a composite video signal received through a camera, digital multimedia broadcasting, the Internet, or a network. The present invention relates to a video and audio reproducing apparatus and a method for reproducing a desired portion at a high speed, so that voice can be quickly requested and video can be viewed at double speed.

More and more people are using voice and video lectures to learn languages, get certifications and prepare for employment. This has many advantages in that it eliminates the need to visit schools and academies to take lectures, and saves students time and effort.

These audio and video lectures can be played quickly at 1.5x, 2x, etc. in order to save time and enhance concentration. Listening to voices quickly is called sokcheong, which is a popular method for brain development. The rapid influx of large amounts of information through vulgaris is more sensitive to the Wernicke Central, a language hub in the brain. The information processed here is sent to different parts of the brain and a chain reaction of activation occurs. Accordingly, by effectively promoting neuronal activity throughout the brain, the brain expands its brain power.

As a prior art of the training device and method for such a sokcheong, Korean Patent Laid-Open No. 2005-0117210 (2005.12.14) describes a sokcheok learning management system through the Internet. Sokcheong learning management system according to this is a sokcheong learning management system that listens to the voice data recorded learning content at a speed of 1 ~ 2 times through the network such as the Internet, and learns to listen, learn, organize and understand the contents. However, this rapid learning method can be used only when the Internet is available, which is a limitation of space and time. Therefore, there is a need for a technology capable of fast listening even when moving and a technology capable of double-speed viewing of a video as well as audio.

 Accordingly, there is a demand for a technology for incorporating the fast listening function of the voice and the double speed viewing function of the video into a mobile phone and performing the fast listening and double speed listening for the voice and video received in real time as well as the already stored voice and video. Mobile phones provide users with various additional functions such as downloading games / videos, sending / receiving e-mails, searching the Internet, watching TV (TV) according to the implementation of the wireless Internet service. It does not provide a function to set the playback position of the audio and video that the user wants to play while saving or adjust the speed.

An object of the present invention for solving the above problems is to receive and store the audio signal and the composite video signal received in real time at the same playback position at the desired playback position, at the same playback speed, or already stored audio signal And an apparatus and method for reproducing audio and video of a mobile phone capable of reproducing a video signal at a desired playback position at a desired playback speed.

In order to achieve the object of the present invention as described above, the audio and video reproducing apparatus of the mobile phone of the present invention, the receiving unit for receiving an audio signal and a composite video signal; An input unit for receiving a storage start command, a reproduction speed, and a reproduction position of the audio signal and the composite video signal; A separation unit that separates the audio signal and the composite video signal received from the receiver into an audio signal and a video signal when a storage start command is input from the input unit; A compression / decompression unit for converting and compressing the audio signal and the video signal output from the separation unit into a digital signal, respectively, and decompressing the compressed digital signal; A storage unit for storing the digital audio signal and the digital video signal compressed from the compression / decompression unit; A conversion unit for converting the digital audio signal and the digital video signal decompressed from the compression / decompression unit into audio and video signals that can be listened and viewed; A processing unit processing the audio signal and the video signal converted from the conversion unit according to the reproduction speed inputted to the input unit; An output unit which outputs the audio signal and the video signal processed by the processing unit from a reproduction position input from the input unit; And a control unit controlling an overall operation according to a user's input command input from the input unit.

The receiving unit may include a microphone for amplifying the voice and receiving a voice signal.

The receiver may include a camera that captures an image and receives an image signal.

The receiver may include a broadcast receiver that receives digital multimedia broadcasting and radio broadcasting.

The receiver may include a communication unit for receiving an audio signal or a composite video signal through the Internet or a network.

The input unit may receive a storage end command, and when the storage end command is input, the storage unit may end the storage of the digital audio signal and the digital image signal.

The output unit, a voice output unit for outputting the voice signal; And an image output unit configured to output the image signal.

When the audio signal and the composite video signal are received in real time from the receiving unit, the digital audio signal and the digital video signal stored in the storage unit are processed according to the reproduction speed input from the input unit at the same time as the storage unit. From the inputted playback position may be output through the output unit.

On the other hand, in order to achieve the object of the present invention as described above, the voice and video reproduction method of the mobile phone of the present invention, receiving a voice signal and a composite video signal; Inputting a storage start command of the audio signal and the composite video signal; Dividing the received composite video signal into an audio signal and a video signal when the storage start command is input; Converting the separated audio signal and the video signal into digital signals and compressing the converted digital signals; Storing the compressed digital audio signal and the digital video signal; Inputting a reproduction position and a reproduction speed of the stored digital audio signal and the digital image signal; Converting the decompressed digital audio signal and the digital video signal into audio and video signals that can be listened and viewed; Processing the converted audio signal and the video signal according to the input reproduction speed; And outputting the processed audio signal and the video signal from the inputted playback position.

The received composite video signal may include image data directly photographed by the mobile phone; Digital multimedia broadcast signals; And data downloaded from the Internet and other mobile phones.

The method may further include ending the storing of the compressed digital audio signal and the digital video signal which are stored when the storage start command is input.

In the case of receiving the DMB broadcast or the radio broadcast in real time in the step of receiving the audio signal and the composite video signal, the compressed digital audio signal and the digital video signal are stored in the storing step and simultaneously processed according to the input reproduction speed. Can be output from the playback position.

 Hereinafter, with reference to the accompanying drawings in the detailed description of the operating principle of the preferred embodiment of the present invention, if it is determined that the detailed description of the known function or configuration may unnecessarily obscure the subject matter of the present invention. Omit.

1 is a block diagram of an audio and video reproducing apparatus of a mobile phone of the present invention.

As shown in FIG. 1, the apparatus for reproducing voice and video of a mobile phone includes a receiver 110, an input unit 120, a separator 130, a compression / decompression unit 140, a storage unit 150, and a conversion unit 160. , A processor 170, an output unit 180, a controller 190, and an RF communication unit 200 are configured.

In this specification, the term mobile phone is used as a general mobile phone as well as PDA (Personal Digital Assistants), a concept that encompasses all the mobile terminal that combines mobility and communication functions such as smart phones.

The receiver 110 includes at least one of a microphone 111, a camera 112, a broadcast receiver 113, and a communicator 114, and receives an audio signal and a composite video signal necessary for viewing and listening to a user.

The voice signal is an analog signal or a digital signal, and includes a signal received through the microphone 111, a radio broadcast signal received through the broadcast receiver 113, and a voice signal transmitted to the wireless Internet or a network through the communication unit 114. do.

In addition, the composite video signal includes an audio signal and an image signal as an analog signal or a digital signal, and the video captured by the camera 112 and the DMB broadcasting and communication unit 114 received through the broadcast receiving unit 113. Includes video and audio signals sent over the wireless Internet or network.

The microphone 111 may include a wired or wireless microphone or a headset microphone, and receives and amplifies a voice signal. The camera 112 is a module including a lens and an image sensor, and captures a video of several to tens of frames per second. The broadcast receiver 113 receives a DMB broadcast and a radio broadcast. A tuner may be included to receive broadcast data, and a multiplexer may be provided to select specific broadcast data from a plurality of broadcast data. The broadcast data includes data including broadcast information, an audio signal, and an image signal. The communication unit 114 is a wired / wireless communication interface. The communication unit 114 may be connected to an internet network to receive an audio signal or a composite video signal.

The input unit 120 is composed of various function keys and alphanumeric keys for receiving a variety of playback commands including a storage start command, a storage end command, a playback speed, and a playback position, and for making a call or creating a text message. The input unit 120 may include a keypad, a touch pad, and a pointing device.

When the start command is input through the input unit 120, the audio signal and the video signal currently being received from the point are stored in the storage unit 150. At this time, the controller 190 does not input the file name or stores the file name. Can be saved to any file name specified by. Thus, even if reception is impossible while receiving and storing the audio signal and the video signal, the previously stored audio signal and the video signal can be preserved without being lost.

The separation unit 130 separates the composite video signal into a video signal and an audio signal when a storage start command is input through the input unit 120. When only the voice signal is received from the receiver 110, the separator 130 passes without performing the separation function.

The compression / decompression unit 140 converts the audio signal and the video signal separated and output from the separation unit 130 into digital signals, respectively, or decompresses the compressed digital signal.

The storage unit 150 stores the digital audio signal and the digital image signal compressed from the compression / decompression unit 140. The storage unit 150 may use a variety of storage media, it may be implemented in a form that can be removable on the basis of the built-in or external to the mobile phone.

When a storage start command is input through the input unit 120, the storage unit 150 is separated by the separating unit 130 under the control of the controller 190 and is compressed from the compression / decompression unit 140. Save the video signal. When receiving a digital broadcast such as a DMB broadcast or a radio broadcast in real time through the broadcast receiver 113, when a storage start command is input through the input unit 120, the digital broadcast may be stored from the point to the point currently being received.

In addition, a storage end command may be input when the storage of the received voice and the image is to be terminated during the listening and viewing.

When receiving a broadcast in real time, such as a DMB broadcast or a radio broadcast, the temporary storage unit 151 included in the storage unit 150 temporarily stores a portion of the received image, so that a storage start command and a storage end command may be input. You can also use the arrow keys to select a point slightly ahead of the point being received.

When reproducing the digital audio signal and the digital video signal that are already stored in the storage unit 150, the playback unit and the playback speed may be selected through the input unit 120 to move and play at a desired playback location or to watch at a desired speed.

The compression / decompression unit 140 decompresses the digital audio signal and the digital video signal stored in the storage unit 150, and the conversion unit 160 decompresses the digital audio signal and the digital decompression from the compression / decompression unit 140. The video signal is converted into an audio signal and a video signal that can be listened and viewed, respectively.

The processor 170 processes the audio signal and the video signal converted from the converter 160 according to the reproduction time and reproduction speed input from the input unit 120.

The output unit 180 includes an audio output unit 181 including a speaker and an image output unit 182 including a liquid crystal screen to reproduce audio and video signals, and the controller 190 controls each component of the mobile phone. Overall control.

Meanwhile, as a function of a general mobile phone, the RF communication unit 200 has a function of voice call and text message transmission and reception by accessing a base station through a mobile communication network.

2 is a flowchart illustrating a method of reproducing voice and video of a mobile phone according to an exemplary embodiment of the present invention.

As shown in FIG. 2, an audio signal and a composite video signal are received through the receiver 110 (S101), and a storage start command of the audio signal and the composite video signal received through the input unit 120 is input (S102). .

When the storage start command is input, the composite video signal received from the receiver is separated into an audio signal and a video signal (S103). If only the voice signal is received from the receiver 110, step S103 is omitted.

The separated audio signal and the video signal are respectively converted into digital signals and compressed (S104), and the compressed digital audio signal and the digital video signal are stored in the storage unit 150 (S105).

When the storage end command is input from the input unit 120, the storage unit 150 ends the storage (S107).

When the save end command is input, the received voice signal and the composite video signal are stored in the storage unit 150 through the separating unit 130 and the compression / decompression unit 140, and thus the stored audio signal and the video signal using the direction keys at any time. The playback speed can be selected by selecting the playback position on the screen or by using the function keys and alphanumeric keys of the mobile phone. In addition, it is possible to add various functions to the menu to play in various playback methods.

If you press the key to move the playback position with the direction keys or to move the playback position to the beginning and end (first, last) and press the key, the playback moves to the first and end positions. If you move to the end by pressing a specific key, you can watch the audio signal and the composite video signal currently being received.

When the playback position is selected using the direction keys or the playback speed is selected by selecting a menu (S108), the digital audio signal and the digital video signal stored in step S105 are decompressed from the compression / decompression unit 140 (S109). And converted into a viewable audio and video signal (S110) and processed according to the reproduction speed input in step S102 (S111), and then output through the output unit 180 (S112).

3 is an exemplary view illustrating a process of simultaneously storing and playing DMB broadcasts being received by a mobile phone according to an exemplary embodiment of the present invention.

As shown in (a) of FIG. 3, when the user selects the menu 310 by pressing the menu key of the mobile phone while watching the DMB broadcast received from the broadcast receiving unit 113 of the mobile phone through the image output unit 182, FIG. As shown in b), a guide window 320 for guiding the input of the start storage command, the end storage command and the reproduction speed is displayed. In order to select the start storage command, press button 1 of the alphanumeric keys of the mobile phone, or press the confirmation key 330 while '1. Start storage' is highlighted.

When '1. Start storage' is selected in the same manner as above, a message 321 for starting storage appears as shown in FIG. Stored from the point currently being received, or may be moved to the temporary storage unit 151 to select and store a point slightly ahead of the currently received DMB broadcast. When the storage is started by moving to the temporary storage unit 151, the storage may be started by moving as much as the time set as an option.

The search symbol (<< >>) of FIG. 3 (c) indicates that the position to start storing can be searched using the direction keys.

When the start command is input, the file name may be input and stored, or may be stored as an arbitrary file name designated by the controller 190 without inputting the file name (not shown).

When a start save command is input, as shown in FIG. 3D, a search symbol for searching a stored section from a point where the start of storage to a point currently being received is displayed on the image output unit 182. When the search symbol is displayed, the direction key of the mobile phone can be pressed to move and play the DMB broadcast stored in the storage unit 150 to the desired playback position from the point where the recording starts to the point currently being received.

Move the playback position with the direction keys or put a specific key (first, last) that moves the playback position from the beginning to the end and press the key to move to the beginning and end positions. If you move to the end by pressing a specific key, you can watch the audio signal and the composite video signal currently being received.

In addition, the menu 310 may include various playback methods to which various functions are added (not shown).

Also, as shown in FIG. 3 (e), when the user selects the menu 310 by pressing the menu key of the mobile phone and selects '3. Play speed', a message 322 for inputting the play speed appears, and when a desired speed is input, a search symbol is used. You can play back at the input speed from the selected playback position.

When you want to end the storage, press the menu key of the mobile phone, select the menu 310, and select '2. End the storage' message (323) for ending the storage in the image output unit 182 as shown in Figure 3 (e) Floats.

When ending the storage may be terminated at the point currently being received with the confirmation key 330, or moved to the temporary storage unit 151 through the direction key to end the storage slightly ahead of the currently received DMB broadcast. When the storage is terminated by moving to the temporary storage unit 151, the storage may be terminated by moving as much as an option time.

The search symbol of FIG. 3 (f) indicates that the position to end the storage can be searched using the direction keys.

When receiving an audio signal and a composite video signal in real time, such as a DMB broadcast, a radio broadcast, and audio and video that are listened to and watched through the Internet, the temporary storage of the storage unit 150 may be input for inputting a start and end command for storing data. If the storage unit 151 stores data of a part of the audio and video currently being reproduced, and the storage start command or the storage end command is not input, the data stored in the temporary storage unit 151 is deleted. In addition, when the temporary storage unit 151 temporarily stores an image when the start and end of storage commands are inputted, the temporary storage unit 151 may move by a time set as an option and start or end the storage.

In addition, after saving the file, selecting the menu 310 and selecting and inputting '3. Playback speed', a message 324 for inputting the playback speed appears as shown in FIG. 3 (g), and the playback speed for the stored file can be set. have.

When the reproduction speed is input, the reproduction speed is reproduced at a desired speed as shown in FIG. 3 (h) through the same process as the steps S108 to S112 of FIG. 2.

Therefore, when receiving a DMB broadcast in real time, if a start save command is input through the input unit 120, the play command can be freely moved to a desired play position between the point at which the save command is input and the current receiving point, or the play speed can be adjusted. In addition, the entire section may be stored by inputting a storage termination command after watching the DMB broadcast.

An embodiment of the present invention may be applied to a case in which a voice or an image to be listened and watched on a radio broadcast and the Internet and a video captured by a camera are received in real time as well as a DMB broadcast to be received in real time.

Another embodiment of the present invention is to set the playback section of the video signal already stored in the mobile phone to play according to the desired playback command.

The video signal already stored in the mobile phone includes a file storing the DMB broadcast signal received in real time, and a composite video signal received and stored through the communication unit 114.

When playing the video signal stored in the mobile phone through the video output unit 182, it is possible to select the desired playback position by pressing the direction key or to input the playback speed by playing the direction key even during playback.

According to another embodiment of the present invention, a file stored by setting a playback section of a DMB broadcast signal received in real time, a voice signal received through a communication unit 114 and a composite video signal, as well as a voice signal received through a microphone and a real time radio The present invention can also be applied to a file storing a voice signal such as a broadcast, a file storing a voice signal or an image signal transmitted through the Internet, and an image captured and stored by a camera.

In the above, specific preferred embodiments of the present invention have been illustrated and described. However, the present invention is not limited to the above-described embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various modifications and other equivalents without departing from the gist of the present invention attached to the claims. Implementation will be possible. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

As described above, according to the present invention, the audio signal and the composite video signal are received and reproduced according to a user's desired playback command, so that the audio and video can be viewed and listened at a desired speed.

When the audio signal and the composite video signal are received in real time, the audio signal and the composite video signal are stored while receiving the audio signal and the composite video signal, and the stored audio signal and the composite video signal are stored at the desired position at a user's desired playback speed. Can play.

In addition, playback positions of stored audio and video signals can be freely selected and reproduced at a desired reproduction speed.

Therefore, when you listen to lectures for language study, certification, and employment, you can achieve the same effect as when you are asking by playing the audio and video quickly and freely moving to the desired location. This can improve understanding.

In addition, by listening and watching audio and video signals at high speed, the overall content can be quickly identified, concentration can be improved, and achievement can be improved. In addition, since the playback using a mobile phone can be conveniently used on the go.

Claims (12)

delete delete delete delete A receiver configured to receive a composite video signal including an audio signal and a video signal; A storage unit which stores the received composite video signal; An input unit for receiving a storage start command of the received composite video signal into the storage unit, a playback position of the stored composite video signal, and a reproduction speed exceeding 1x speed; A separation unit that separates the received composite video signal into a video signal and an audio signal according to an input of a storage start command through the input unit; A compression / decompression unit for converting and compressing the separated audio signal and the video signal into a digital signal, respectively, storing them in the storage unit, and terminating the storage of the received composite video signal according to an input of a storage termination command through the input unit. Wow; A converter configured to expand the compressed audio signal and the video signal of the stored composite video and convert the compressed audio signal and the video signal into a viewable audio signal and a video signal, respectively; A processing unit for processing the converted audio signal and video signal according to the input reproduction speed; An output unit for outputting the processed audio signal and video signal from the inputted playback position; And And a controller configured to play back the audio and video of the stored composite video at the input playback speed at the input playback position. The receiving unit, Microphone to amplify the voice to receive a voice signal, A camera that takes an image and receives an image signal; Broadcasting receiving unit for receiving digital multimedia broadcasting and radio broadcasting or At least one of the communication unit for receiving a composite video signal through the Internet or a network, When the receiver receives the composite video signal in real time, And the compression / decompression unit compresses and stores the received composite video signal, and simultaneously the processing unit processes the inputted reproduction speed. The method of claim 5, The input unit receives a storage end command, And the storage unit terminates the storing of the digital audio signal and the digital video signal when the storage end command is input. The method of claim 6, wherein the output unit, A voice output unit which outputs the voice signal; And And a video output unit for outputting the video signal. The method of claim 7, wherein the storage unit, And a temporary storage unit for temporarily storing the composite video signal being received through the receiving unit. delete delete delete A storage step of receiving and storing a composite video signal including an audio signal and a video signal; An input step of receiving a reproduction position of the stored composite video signal and a reproduction double speed exceeding 1x speed; And And a reproducing step of reproducing audio and video of the stored composite image at the input reproduction speed at the input reproduction position. The storing step, Receiving the composite video signal; Dividing the received composite video signal into an audio signal and a video signal according to an input of a storage start command; Converting and compressing the separated audio and video signals into digital signals and storing the digital signals; And Terminating storage of the received composite video signal according to an input of a storage end command; The regeneration step, Expanding the compressed audio signal and the video signal of the stored composite video and converting the compressed audio signal and the video signal into a viewable audio signal and a video signal, respectively; Processing the converted audio signal and the video signal according to the input reproduction speed; And And outputting the processed audio signal and the video signal from the input reproduction position. When receiving the composite video signal in real time in the receiving step, And compressing and storing the received composite video signal and simultaneously processing the received composite video signal according to the input reproduction speed to output the inputted reproduction position from the input reproduction position.

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