SYSTEM AND METHOD FOR OUTPUTTING CONTENTS IN CPNS ENVIRONMENT

• US 20120271910A1
• Filed: 03/29/2011
• Published: 10/25/2012
• Est. Priority Date: 08/09/2010
• Status: Active Grant

• Current Assignee: SK Planet Co., Ltd. (SK Telecom Co., Ltd.)
• Original Assignee: SK Planet Co., Ltd. (SK Telecom Co., Ltd.)
• Inventors: Huh, Hun
• Granted Patent: US 8,458,291 B2
• Time in Patent Office: Days
• US Class Current: 709/217
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 67/125 involving control of end-device applications over a network
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces
• CPC Class Codes: H04M 1/72442 for playing music files
• CPC Class Codes: H04N 21/41265 having a remote control device for bidirectional communication between the remote control device and client device unidirectional remote control device H04N21/42204
• CPC Class Codes: H04N 21/43637 involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11] arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114
• CPC Class Codes: H04N 21/4381 Recovering the multiplex stream from a specific network, e.g. recovering MPEG packets from ATM cells transmission of MPEG streams over ATM H04L12/5601
• CPC Class Codes: H04N 21/8106 involving special audio data, e.g. different tracks for different languages

Abstract

The present invention relates to a system and method for outputting contents in a CPNS environment, and the system for outputting contents in a CPNS environment comprises: a user terminal for searching for a contents playback terminal supporting CPNS, sharing the contents with the contents playback terminal by receiving contents information from the searched contents playback terminal and downloading at least one piece previously stored contents to the contents playback terminal, and requesting playback of contents selected by a user among the shared contents; the contents playback terminal for sharing the contents with the user terminal by connecting to the user terminal through a short-range communication network, and outputting corresponding contents through a contents output device in response to a contents playback request received from the user terminal; and the contents output device for outputting the contents received from the contents playback terminal.

In addition, the contents playback terminal comprises a wireless communication unit for performing communication through a short-range communication network; an input unit for inputting a user command; a storage unit for storing contents; a download processing unit for downloading contents from a user terminal through the short-range wireless communication unit and transmitting the contents stored in the storage unit to the user terminal so as to share the contents; and a playback unit for decoding and outputting corresponding contents when playback of the contents is requested through the input unit.

Therefore, according to the present invention, if the contents playback terminal is connected to an input port of an existing external speaker, the speaker can be used in the form of an Internet speaker, and thus a user can be provided with a value of listening to the contents on the network in a further abundant sound environment. Furthermore, since contents of a terminal supporting CPNS can be received through short-range wireless communication such as WiFi or the like and transmitted on an FM frequency, it is possible to conveniently listen to contents of a variety of terminals supporting CPNS in a vehicle, and thus users can be provided with a convenient environment.

Claims

1. A system for outputting contents in a CPNS environment, the system comprising:

a user terminal for searching for a contents playback terminal supporting CPNS, sharing the contents with the contents playback terminal by receiving contents information from the searched contents playback terminal and downloading at least one piece previously stored contents to the contents playback terminal, and requesting playback of contents selected by a user among the shared contents;

the contents playback terminal for sharing the contents with the user terminal by connecting to the user terminal through a short-range communication network, and outputting corresponding contents through a contents output device in response to a contents playback request received from the user terminal; and

the contents output device for outputting the contents received from the contents playback terminal.

2. The system according to claim 1, further comprising a remote control device for enable to download contents stored in the user terminal and the contents playback terminal to each other or to select contents remotely desired to be played back.

3. The system according to claim 1, wherein the contents output device is an external speaker.

4. The system according to claim 1, wherein the contents playback terminal decodes corresponding contents in response to the contents playback request received from the user terminal, converts the corresponding contents into FM data, and transmits the FM data, and the contents output device demodulates the FM data received from the contents playback terminal and outputs the demodulated FM data in real-time.

5. The system according to claim 4, wherein the contents playback terminal transmits the FM data at a specific frequency.

6. A user terminal comprising:

a wireless communication unit for performing communication through a short-range communication network;

a storage unit for storing contents;

a terminal search unit for searching for a contents playback terminal supporting CPNS;

a contents-share processing unit for sharing the contents with the contents playback terminal by requesting and receiving contents information from the contents playback terminal searched by the terminal search unit and downloading at least one piece the contents stored in the storage unit to the searched contents playback terminal; and

a playback request unit for transmitting a request for playing back contents selected by a user among the contents shared by the contents-share processing unit to the contents playback terminal through the wireless communication unit.

7. The user terminal according to claim 6, wherein the terminal search unit receives terminal information from the searched contents playback terminal and manages the received terminal information.

8. The user terminal according to claim 6, wherein the playback request unit requests playback of the contents downloaded by the contents-share processing unit, requests playback of the contents selected by the user among the contents stored in the storage unit while streaming the contents, or requests playback of contents stored in the contents playback terminal.

9. A contents playback terminal comprising:

a wireless communication unit for performing communication through a short-range communication network;

a storage unit for storing contents;

a download processing unit for downloading contents from a user terminal through the wireless communication unit and transmitting the contents stored in the storage unit to the user terminal so as to share the contents;

a decoding unit for decoding contents requested to be played back by the user terminal among the contents shared by the download processing unit; and

an output interface unit for transmitting the decoded contents to a contents output device.

10. The contents playback terminal according to claim 9, wherein the contents output device uses an external speaker, and the output interface unit is a stereo jack interface.

11. The contents playback terminal according to claim 9, further comprising a terminal information providing unit for providing the user terminal with terminal information through the wireless communication unit.

12. The contents playback terminal according to claim 9, further comprising an FM conversion unit for converting the decoded contents into FM data, wherein the output interface unit transmits the FM data converted by the FM conversion unit at a specific frequency.

13. The contents playback terminal according to claim 9, wherein the decoding unit decodes the contents downloaded or streamed from the user terminal, in real-time.

14. The contents playback terminal according to claim 12, wherein the FM conversion unit converts the decoded contents into FM data by modulating and demodulating the contents and selectively converts the contents so that the converted FM data may have a frequency band that can be received by a radio, and an FM transmit unit converts the FM data into a high frequency signal in order to wirelessly transmit the FM data on a channel selected by the FM conversion unit, amplifies the converted high frequency FM signal to a predetermined level in order to wirelessly transmit the high frequency FM signal, and transmits the amplified high frequency FM signal.

15. The contents playback terminal according to claim 9, further comprising:

an input unit for inputting a user command; and

a playback unit for decoding and outputting corresponding contents when playback of the contents is requested through the input unit.

16. The contents playback terminal according to claim 15, wherein if output of the decoded contents through an external speaker is requested, the playback unit outputs the decoded contents through the external speaker connected through the output interface unit, and if output of the decoded contents through an external speaker is not requested, the playback unit outputs the decoded contents through a speaker of its own.

17. The contents playback terminal according to claim 15, wherein the input unit is provided with a play button, a previous button, a next button, a volume up button, and a volume down button for playing back the contents stored in the storage unit.

18. The contents playback terminal according to claim 15, wherein the playback unit determines whether or not the contents playback terminal possesses the contents requested to be played back, and if the contents playback terminal possesses the contents requested to be played back, the playback unit extracts corresponding contents from the storage unit and decodes the extracted contents, whereas if the contents playback terminal does not possess the contents, the playback unit downloads the contents from the user terminal and decodes the downloaded contents.

19. A method for outputting contents in a CPNS environment, the method comprising the steps of:

(a) searching for a contents playback terminal supporting CPNS, by a user terminal;

(b) sharing the contents with the contents playback terminal by receiving contents information from the searched contents playback terminal and downloading at least one piece previously stored contents to the contents playback terminal, by a user terminal;

(c) requesting the contents playback terminal to play back contents selected by a user among the shared contents, by the user terminal;

(d) decoding the contents requested to be played back, by the contents playback terminal; and

(e) outputting the decoded contents through a contents output device, by the contents playback terminal.

20. The method according to claim 19, wherein the contents output device is configured as an external speaker connected to the contents playback terminal through a stereo jack.

21. The method according to claim 19, wherein step (e) includes the steps of:

(e1) converting the decoded contents into FM data and transmitting the FM data, by the contents playback terminal; and

(e2) demodulating the FM data received from the contents playback terminal and outputting the demodulated FM data, by the contents output device.

22. The method according to claim 21, wherein step (el) includes the steps of:

converting the decoded contents into FM data by modulating and demodulating the contents and selectively converting the contents so that the converted FM data may have a frequency band that can be received by a radio; and

converting the FM data into a high frequency signal in order to wirelessly transmit the FM data on a selected channel, amplifying the converted high frequency FM data to a predetermined level in order to wirelessly transmit the high frequency FM data, and transmitting the amplified high frequency FM data.

23. The method according to claim 19, wherein step (c) requests playback of the downloaded contents, requests playback of the contents selected by the user among the previously stored contents while streaming the contents, or requests playback of contents stored in the contents playback terminal.