KR20090031047A - Method for playing multimedia using peripheral device and device thereof - Google Patents

Abstract

A method for reproducing multimedia by using peripheral devices and an apparatus therefor are provided to enable a user to select a desired device for reproducing the multimedia through only a simple key input from the user based on information about a sensed device. A device information receiving part(100) senses device information from at least one peripheral device. A display unit(120) displays the device information sensed from one or more peripheral devices. A device selecting part(130) enables a user who desires to reproduce the multimedia to select a device based on the device information which is sensed from the device information receiving part. According to the kind of the device which is selected through the device selecting part by the user, a controller(110) determines whether to reproduce multimedia data through the device. A function performing part(150) performs the multimedia function of the multimedia data.

Description

Method for playing multimedia using peripheral device and device therefor {Method for playing multimedia using peripheral device and device approximately}

The present invention relates to a multimedia playback method and apparatus, and more particularly, to a multimedia playback method and a device using a peripheral device.

Recently, multimedia playback apparatuses capable of executing multimedia such as music, video, or pictures are increasing. In particular, in addition to a personal computer (PC) and a mobile phone, there are various kinds thereof including a mobile computer, a headset, a personal digital assistant (PDA), an MP3 player, a PMP, and the like.

Meanwhile, as the types of multimedia players are diversified, users' demands for reproducing multimedia data in a specific multimedia player through other devices are also increasing.

For example, when a user comes home listening to music on an MP3 player outdoors through a wireless headset, they may want to listen to music through wireless speakers in the living room. Or, a user may want to listen to an instructional lecture on a PMP and then move the instructional instruction to a large-screen television in the living room to listen to the instruction.

 However, to do this work requires a separate device and work. For example, if a user wants to watch a video file downloaded from a computer through a website on a large screen TV, complicated devices and tasks are required.

In other words, in order to transfer and watch movies on a computer from a TV, a video card capable of TV out and a TV out terminal connecting the TV and the video card are required. And it is necessary to install these devices in the device for each function. This is a difficult task, especially for those who are not used to using the device.

In addition, if the user wants to play the multimedia on other devices, the user may have to repeat the operation of determining whether the playback is possible and installing the additional device and the additional device.

On the other hand, device-to-device compatibility is difficult due to the lack of various standards and integrated solutions between devices. In particular, compatibility between devices in different environments such as wired and wireless, CDMA and WCDMA is a difficult problem. In addition, if the product and specifications of the device is different, there is a problem that it is difficult to interconnect a plurality of devices.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, it is possible to play the multimedia using a peripheral device through a wireless transmission by simply selecting a device to play the multimedia from the user without the need for complicated devices or operations An object of the present invention is to provide a multimedia playback method and apparatus.

In order to achieve the above object, the present invention proposes a multimedia playback apparatus capable of multimedia playback using a peripheral device through wireless communication.

More specifically, according to an aspect of the present invention, the above object is a device information receiving unit for detecting device information from at least one peripheral device, a device selected by the user based on the device information detected by the device information receiving unit multimedia playback If the device matches, the controller plays the multimedia data. If the device does not match, the controller controls the selected peripheral device to play the multimedia data. If the selected peripheral device does not match the multimedia player, wireless communication using chaotic signal is performed. It is achieved by a multimedia player using a peripheral device, characterized in that it comprises a wireless communication unit for transmitting the multimedia data to the peripheral device selected through. At this time, the chaotic signal has a plurality of frequency components in a predetermined frequency band.

Furthermore, the wireless communication unit may adjust the transmission speed according to the size or type of the multimedia data, and transmit the multimedia data to the peripheral device selected by the real time streaming method.

According to another aspect of the present invention, an object of the present invention is to detect device information from at least one peripheral device, to receive a device to play multimedia data from a user based on the detected device information, Determining whether the multimedia player matches the multimedia player; if the result is identical, the multimedia player plays the multimedia data; if it does not match, the multimedia device transmits the multimedia data through wireless communication using a chaotic signal. It is also achieved by a multimedia playback method using a peripheral device comprising the step of playing.

As described above, according to the present invention, a multimedia player and a method for reproducing multimedia through wireless communication are provided by selecting a device to easily play multimedia from a user without a separate apparatus or complicated work.

That is, the multimedia player according to the present invention can detect device information from at least one peripheral device. Therefore, based on the detected device information, a user may select a device for playing multimedia data from the user with a simple key input. In addition, by enabling wireless communication between devices, the user can reduce the effort required to install or set up additional connection tools.

Furthermore, by designing a wireless communication system to enable wireless communication between a multimedia player and a peripheral device using a chaotic signal modulation method, it is possible to reduce power consumption and maintain a transmission speed smoothly.

Meanwhile, according to the present invention, there is provided a multimedia playback apparatus capable of adjusting a transmission speed of wireless communication according to the size or type of multimedia data. Therefore, the multimedia data can be flexibly transmitted to at least one peripheral device. It can also reduce errors that can occur during transmission.

Furthermore, the multimedia player according to the present invention can wirelessly transmit the multimedia data to the peripheral device selected by the user in real time streaming. Accordingly, multimedia playback is possible even during multimedia data transmission. Therefore, the delay time for receiving the multimedia data is reduced, so that the user can use the multimedia function in a short time.

Furthermore, the multimedia player according to the present invention enables multimedia playback by wirelessly transmitting the same or different multimedia data in the multimedia player to a plurality of devices at the same time, so that several people can use multimedia functions together using various peripheral devices. have.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention; In the following description of the present invention, if it is determined that detailed descriptions of related well-known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to intention or custom of a user or an operator. Therefore, the definition should be made based on the contents throughout the specification.

1 illustrates an embodiment of transmitting and receiving multimedia data between a multimedia player 10 and peripheral devices 20a, 20b, ..., 20n according to the present invention.

Referring to FIG. 1, the multimedia player 10 and at least one peripheral device 20a, 20b,..., 20n may exchange multimedia such as audio data, voice data, or video data through a wireless signal.

At this time, the multimedia player 10 may play multimedia. In addition, the multimedia data may be wirelessly transmitted to the peripheral devices 20a, 20b, ..., 20n so that the peripheral devices 20a, 20b, ..., 20n may reproduce the multimedia data.

Here, when the multimedia player 10 causes the peripheral devices 20a, 20b, ..., 20n to play the multimedia data, the multimedia player 10 may use one peripheral device. Alternatively, the same or different multimedia data may be simultaneously played using the plurality of peripheral devices 20a, 20b,..., 20n. Therefore, the user or a plurality of users can use the multimedia function using a variety of peripheral devices at the same time.

The peripheral devices 20a, 20b, ..., 20n are PMPs, MP3 players, TVs, audio, computers, computer peripherals, headsets, mobile terminals, wireless speakers, note PCs, CD players, DVD players, DMBs, flexible displays, Portable display, refrigerator, in-room display, built-in furniture display, display using office space, car display, head-rest, e-Glasses, e-book, e-paper ( at least one of an e-paper and an e-assistant. At this time, it is preferable that the plurality of peripheral devices 20a, 20b, ..., 20n play an image, an image, or music.

2 is a block diagram of a multimedia player 10 according to the present invention.

According to FIG. 2, the multimedia player 10 according to the present invention includes a device information receiver 100, a controller 110, and a wireless communication unit 160. Furthermore, the multimedia player 10 includes a display 120, a device selector 130, a storage 140, and a function performer 150.

The device information receiver 100 detects device information from at least one peripheral device 20a, 20b,..., 20n. In this case, the device information is preferably a model name, model number, serial number, manufacturer number, manufacturer's URL, product URL, product specification, user information, or a combination thereof.

In addition, when the peripheral devices 20a, 20b,..., 20n support various types of services existing on the Internet, the device information may be a URL of a manufacturer or a URL of a product. In this case, it is preferable that the URL indicating the location of the multimedia data of the peripheral device specifies the location of the files in each of the servers providing the service on the web. That is, it may include a type of service to be connected, a server location (domain name), a file location, and the like.

The display unit 120 displays device information detected by at least one peripheral device 20a, 20b, ..., 20n. For example, device information of the plurality of peripheral devices 20a, 20b,..., And 20n may be displayed on a screen through visual effects such as a specific message box, an image, or a screen flicker that a user can see.

In addition, the device selector 130 receives a selection of a device for playing multimedia from a user based on at least one device information detected by the device information receiver 100. In this case, the selected device is the multimedia player 10 or a peripheral device. In addition, the peripheral device to be selected is not limited to any one and may be a plurality of peripheral devices 20a, 20b, ..., 20n.

The controller 110 determines whether to play the multimedia data through which device according to the type of device selected by the user through the device selector 130.

That is, when the selected device is the multimedia player 10, the multimedia player 10 plays the multimedia data. At this time, it is preferable to reproduce multimedia data including a music file, an image or a photo stored in the storage 140 of the multimedia player 10. In contrast, when the device selected by the user is the peripheral devices 20a, 20b,..., 20n, the at least one selected peripheral device plays the multimedia data.

At this time, the function performing unit 150 performs a multimedia function of the multimedia data. For example, when the selected device is MP3, it can play music files, and when it is a television, it can play video and audio.

Meanwhile, when the device selected by the device selector 130 is the peripheral devices 20a, 20b,..., 20n, the wireless communication unit 160 transmits the multimedia data through wireless communication so that the selected peripheral device can play the multimedia data.

At this time, the wireless communication may use a chaotic signal.

The chaotic signal is similar to the noise signal when viewed in the time domain because several frequencies are mixed, but in the frequency domain, the chaotic signal has a specific frequency band.

Here, the proposed chaos modulation method for the low power function is implemented. The chaotic modulation scheme can be designed with a simple RF structure in hardware and eliminates the complicated circuits required for wireless communication systems using spread-band communications.

That is, according to the spread spectrum communication method, a signal must be spread with a bandwidth that is much wider than a bandwidth of a signal to be transmitted. At this time, in order to transmit data, the carrier must be raised to a certain frequency. Therefore, devices that transmit data need components for upconverting the carrier from baseband to a constant frequency. Devices that receive data also require components to downconvert the elevated carrier to baseband.

However, when the information is transmitted using a chaotic signal, such complicated components are not necessary. Therefore, power consumption can be reduced. Accordingly, by using the chaotic signal modulation method according to the present invention, wireless communication between the multimedia player 10 and at least one peripheral device 20a, 20b, ..., 20n is possible, thereby reducing power consumption and maintaining a stable transmission speed. There is an effect that can realize a wireless communication system that can be.

Hereinafter, the multimedia data transmission process using the chaotic signal of the wireless communication unit 160 will be described in detail.

The wireless communication unit 160 combines the chaotic signal having a plurality of frequency components in a predetermined frequency band with the multimedia data signal and transmits the mixed signal to the peripheral device. At this time, the chaotic signal is a kind of carrier wave used for transmission of the multimedia data signal transmitted and received between the multimedia player 10 and the plurality of peripheral devices 20a, 20b, ..., 20n. In this case, the chaotic signal is generated by successively generating a plurality of pulses having different periods and amplitudes in the time domain.

In this case, the frequency band of the chaotic signal is almost independent of the pulse interval T of the chaotic signal. That is, since the frequency bandwidth can be maintained regardless of the fluctuation of the chaos signal, it is not necessary to change other components such as a filter or an amplifier to change the chaos signal pulse period. Subsequently, a signal obtained by combining the multimedia data signal and the chaotic signal is converted into a chaotic carrier.

In contrast, the peripheral devices 20a, 20b,..., 20n amplify the chaotic carriers transmitted from the wireless communication unit 160 through antennas, detect the amplified chaotic carriers, and extract the multimedia data signal. Accordingly, the extracted multimedia data can be reproduced by the peripheral devices 20a, 20b, ..., 20n.

Meanwhile, the wireless communication unit 160 may adjust the transmission speed according to the size or type of the multimedia data. This is to smoothly transmit multimedia data and to reduce errors that may occur during transmission.

In addition, it is possible to transmit the multimedia data to the peripheral device (20a, 20b, ..., 20n) selected by the real-time streaming method. Accordingly, the multimedia data can be reproduced even during the transmission of the multimedia data. Therefore, the delay time for receiving the multimedia data is reduced, so that the user can use the multimedia function in a short time.

3 is a flowchart illustrating a multimedia playback method according to the present invention.

Referring to FIG. 3, the device information receiver 100 of the multimedia player 10 detects device information from at least one peripheral device 20a, 20b,..., 20n (S110). The device information may be a model name, model number, serial number, manufacturer number, manufacturer's URL, product URL, product specification, user information, or a combination thereof. In this case, the device information detected by the at least one peripheral device 20a, 20b, ..., 20n may be displayed on the screen of the multimedia player 10.

Meanwhile, based on the detected device information, the device selector 130 of the multimedia player 10 receives a device for playing multimedia data (S120). The selected device is preferably a multimedia player 10 or a peripheral device.

Accordingly, at least one device information automatically detected by the device information receiving unit 100 may be displayed to the user through the display unit 120, and a user may select a device to play multimedia through the device selection unit 130. Therefore, the user can select a device to play the multimedia data with a simple key input without having to check whether the device is compatible with the multimedia.

The controller 110 determines whether the selected device matches the multimedia player (S130). If the result of the determination matches, the multimedia player 10 plays the multimedia data (S150). On the contrary, if it does not match, the multimedia data is transmitted to the selected peripheral device through wireless communication (S160). In this case, it is preferable to use a chaotic signal for wireless communication. The peripheral device that receives the multimedia data from the multimedia player 10 plays the multimedia data (S170).

Hereinafter, a method of playing multimedia data according to the case where the device selected by the user is the multimedia player 10 and the peripheral devices 20a, 20b,..., 20n will be described with reference to FIGS. 4 and 5. do.

4 is a flowchart illustrating a multimedia playback method according to an embodiment of the present invention.

Referring to FIG. 4, the multimedia player 10 detects peripheral device information from at least one peripheral device 20a, 20b,..., 20n (S210). In operation S220, a peripheral device list is generated based on the detected peripheral device information. The generated peripheral device list may be displayed on the screen. Subsequently, a user, for example, a multimedia player 10 to play multimedia data is selected by the user (S230a). In operation S240, it is determined whether the selected device coincides with the multimedia player 10. At this time, if there is a match, the multimedia player 10 plays the multimedia data (S260a).

5 is a flowchart illustrating a multimedia playback method according to another embodiment of the present invention. This is the case where the device selected by the user for playing the multimedia data is the peripheral devices 20a, 20b, ..., 20n.

Referring to FIG. 5, the multimedia player 10 detects peripheral device information from at least one peripheral device 20a, 20b,..., 20n (S210). In operation S220, a peripheral device list is generated based on the detected peripheral device information. The generated peripheral device list may be displayed on the screen. Subsequently, a peripheral device, for example, a second peripheral device 20b, to play multimedia data is selected by the user (S230b). In operation S240, it is determined whether the selected device matches the multimedia player 10. FIG. In this case, since the data does not match, the multimedia data is transmitted to the second peripheral device 20b through wireless communication using the chaotic signal (S250). Subsequently, the second peripheral device 20b receiving the multimedia data plays the multimedia data in operation S260b.

Meanwhile, various embodiments of multimedia playback using the peripheral devices 20a, 20b, ..., 20n will be described with reference to FIGS. 6 and 7.

6 is an exemplary diagram of a multimedia player 10 for playing multimedia data using peripheral devices 20a, 20b, ..., 20n according to an embodiment of the present invention.

According to FIG. 6, a movie having a small screen, for example, a movie data stored in a PMP can be wirelessly transmitted to a device providing a large screen, for example, a television.

7 is an exemplary diagram of a multimedia player 10 for playing multimedia data using peripheral devices 20a, 20b, ..., 20n according to another embodiment of the present invention.

According to FIG. 7, when a user watches a multi-channel multimedia broadcast in a mobile phone or a PDA and wants to continue watching in a car, the multimedia data can be played on the headrest by wirelessly transmitting the multimedia data to the headrest, a peripheral device.

So far I looked at the center of the preferred embodiment for the present invention. Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

1 is an embodiment of multimedia data transmission and reception between a multimedia player and a peripheral device according to the present invention;

2 is a block diagram of a multimedia player according to the present invention;

3 is a flowchart illustrating a multimedia playback method according to the present invention;

4 is a flowchart illustrating a multimedia playback method according to an embodiment of the present invention;

5 is a flowchart illustrating a multimedia playback method according to another embodiment of the present invention;

6 is an exemplary diagram of a multimedia player for playing multimedia data using a peripheral device according to an embodiment of the present invention;

7 is an exemplary diagram of a multimedia player for playing multimedia data using a peripheral device according to another exemplary embodiment of the present invention.

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

10: multimedia playback device 20a, 20b, 20n: peripheral device

100: device information receiving unit 110: control unit

120: display unit 130: device selection unit

140: storage unit 150: function performing unit

160: wireless communication unit

Claims (14)

In the multimedia player for playing multimedia data, A device information receiver configured to detect device information from at least one peripheral device; A controller configured to play the multimedia data when the device selected by the user matches the multimedia player based on the device information detected by the device information receiver, and cause the selected peripheral device to play the multimedia data when the device selected does not match; And And a wireless communication unit configured to transmit the multimedia data to the selected peripheral device through a wireless communication using a chaotic signal when the selected peripheral device does not match the multimedia player. Multimedia playback device using. The method of claim 1, And the wireless communication unit transmits the multimedia data to the peripheral device using a chaotic signal having a plurality of frequency components in a predetermined frequency band. The method of claim 1, The wireless communication unit multimedia playback apparatus using a peripheral device, characterized in that for controlling the transmission speed according to the size or type of the multimedia data. The method of claim 1, And the wireless communication unit transmits the multimedia data to the selected peripheral device by a real time streaming method. The method of claim 1, The peripheral devices are PMP, MP3 player, TV, audio, computer, computer peripheral, headset, mobile communication terminal, wireless speaker, note PC, CD player, DVD player, DMB, flexible display, portable display, refrigerator, display in kitchen facilities. , Furniture display, office space display, car display, head-rest, e-Glasses, e-book, e-paper, e-secretary (e) Multimedia playback apparatus using a peripheral device, characterized in that at least one of the. The method of claim 1, And the device information is at least one of a model name, a model number, a serial number, a manufacturer number, a manufacturer's URL, a product URL, a product specification, and user information of the device. The method of claim 1, The multimedia player is a multimedia player using the peripheral device characterized in that for playing the same or different multimedia data at the same time using at least one peripheral device. The method of claim 1, And a display unit for displaying the device information detected by the device information receiver from at least one peripheral device on a screen. In the multimedia playback method using a multimedia player, a) detecting device information from at least one peripheral device; b) receiving a selection of a device to play multimedia data from a user based on the detected device information; c) determining whether the selected device matches the multimedia player; d) if it is determined that the multimedia player reproduces the multimedia data; if it is not matched, the multimedia data is transmitted to the selected peripheral device through wireless communication using a chaotic signal and reproduced by the selected peripheral device. Multimedia playback method using a peripheral device, characterized in that it comprises a step. The method of claim 9, Step a) is a multimedia using a peripheral device, characterized in that for detecting at least one device information of the model name, model number, serial number, manufacturer number, manufacturer URL, product URL, product specification, user information of the device How to play. The method of claim 9, wherein step b) b1) displaying the detected device information on a screen; And b2) receiving a selection of a device to play multimedia data from a user based on the device information displayed on the screen. The method of claim 9, In the step d), the multimedia data is transmitted to the selected peripheral device using a chaotic signal having a plurality of frequency components in a predetermined frequency band. The method of claim 9, The step d) is a multimedia playback method using a peripheral device, characterized in that for transmitting the multimedia data through a wireless communication to adjust the transmission rate according to the size or type of the multimedia data. The method of claim 9, The step d) is a multimedia playback method using a peripheral device, characterized in that for transmitting the multimedia data to the selected peripheral device via a wireless communication in real time.

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