WO2017073991A1

WO2017073991A1 - Content streaming method using near field communication, content provision method using near field communication, data editing method using near field communication, and content playback device

Info

Publication number: WO2017073991A1
Application number: PCT/KR2016/012031
Authority: WO
Inventors: 유철재
Original assignee: 유철재
Priority date: 2015-10-26
Filing date: 2016-10-26
Publication date: 2017-05-04
Also published as: KR20170067173A; KR101778855B1

Abstract

This content streaming method using near field communication comprises steps in which: a content playback device is connected via a near field communication module to a medium having content stored thereon; the content playback device starts receiving the content streamed from the medium; for a reference time from the point of receiving the streamed content or a reference point, the content playback device measures a predetermined number of times the strength of signals transmitted by the medium or the error ratio of data transmitted by the medium; and if the strength of the signals is greater than or equal to a first reference value or if the error ratio of the data transmitted by the medium is less than or equal to a second reference value, the content playback device receives the content without exchanging an ACK message with the medium.

Description

Content streaming method using short range wireless communication, content providing method using short range wireless communication, data editing method using short range wireless communication and content reproducing apparatus

The technology described below relates to a technique for delivering content to a playback device.

Recently, with the development of communication technology, smart devices such as smartphones have emerged, and the content streaming service market through smart devices has also grown a lot. The content streaming service is basically a method of transmitting digital content from a specific server to a terminal such as a smartphone of a service subscriber. In other words, the user receives and uses digital content in real time through his smartphone.

The technology described below is intended to provide a technique for receiving content from a physical medium such as an NFC card using near field communication. The technology described below is intended to provide a technique for a multimedia playback device to receive content from a physical medium located in a predetermined area.

In the content streaming method using short-range wireless communication, a content reproducing apparatus is connected to a medium storing content through a short-range wireless communication module, and the content reproducing apparatus starts to receive the content from the medium. Measuring the strength of the signal transmitted by the medium or the error rate of the data transmitted by the medium at a predetermined number of times during the reference time from the time when the content is streamed or the reference time, and when the signal strength is equal to or greater than a first reference value or If the error rate of the data is less than or equal to the second reference value, the content playback device includes streaming the content without exchanging an ACK message with the medium during the reference time.

In another aspect, a method of providing content using short-range wireless communication may include: connecting a content reproducing apparatus to a medium storing content through a short range wireless communication module; receiving, by the content reproducing apparatus, a test packet from the medium, reproducing the content Measuring, by the device, the strength of the signal transmitted by the medium or the error rate of data transmitted by the medium a predetermined number of times during the reference time from the time when the test packet was received or from the reference time point, and when the signal strength is equal to or greater than a first reference value Or if the error rate of the data is less than or equal to a second reference value, receiving the content and storing all of the content without exchanging an ACK message with the medium for the reference time.

In a data editing method using short-range wireless communication, a content reproducing apparatus is connected to a medium through a short range wireless communication module, the content reproducing apparatus receives a data packet from the medium, and the content reproducing apparatus receives the data packet. Measuring an intensity of a signal transmitted by the medium or an error rate of data transmitted by the medium at a predetermined number of times during a reference time from one time point or a reference time point, and when the signal strength is equal to or greater than a first reference value or the error rate of the data is zero; The content reproducing apparatus includes transmitting data to the medium without exchanging an ACK message with the medium when the reference value is 2 or less.

The content reproducing apparatus is connected to the medium by using a short range communication module, and measures the strength of a signal received from the medium or an error rate of data transmitted by the medium, so that the signal strength is equal to or greater than a first reference value or the error rate of the data. If it is less than or equal to the second reference value, data is received from the medium or data is transmitted to the medium without exchanging an ACK message with the medium.

The technology described below provides a new protocol for the multimedia playback device to receive relatively large amounts of content from a physical medium, such as a near field NFC card.

1 shows an example of a medium and a content reproducing apparatus.

2 illustrates an example of a content reproducing apparatus that receives content from a medium.

3 is an example of a procedure flow diagram for a content streaming method using near field communication.

4 is an example of a procedure flowchart for a content providing method using near field communication.

5 is another example of a procedure flowchart for a content providing method using short-range wireless communication.

6 is an example showing the configuration of a medium.

7 is an example of a block diagram showing a configuration of a content reproducing apparatus.

8 is an example of a process flow diagram for a method of editing content or content information.

The following description may be made in various ways and have a variety of embodiments, specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the technology described below to specific embodiments, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the technology described below.

The terms first, second, A, B, etc. may be used to describe various components, but the components are not limited by the terms, but merely for distinguishing one component from other components. Only used as For example, the first component may be referred to as the second component, and similarly, the second component may be referred to as the first component without departing from the scope of the technology described below. The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.

As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It is to be understood that the present invention means that there is a part or a combination thereof, and does not exclude the presence or addition possibility of one or more other features or numbers, step operation components, parts or combinations thereof.

Prior to the detailed description of the drawings, it is to be clear that the division of the components in the present specification is only divided by the main function of each component. That is, two or more components to be described below may be combined into one component, or one component may be provided divided into two or more for each function. Each of the components to be described below may additionally perform some or all of the functions of other components in addition to the main functions of the components, and some of the main functions of each of the components are different. Of course, it may be carried out exclusively by.

In addition, in carrying out the method or operation method, each process constituting the method may occur differently from the stated order unless the context clearly indicates a specific order. That is, each process may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

Techniques described below relate to a method for streaming content to a content playback device or a method for providing content to a content playback device. Content refers to digital content such as a sound source, voice, video, pictures, and the like. The content reproducing apparatus corresponds to a multimedia reproducing apparatus. In the technology described below, the content reproducing apparatus includes a device such as a smartphone, a tablet, a PC, and the like. If the content playback device is a smartphone device, the content may be played using an application that receives the content.

The technology described below uses a physical medium that performs a role similar to that of a conventional compact disk (CD). Here, the physical medium means a recording medium that stores information. The physical medium includes a short range wireless communication module for transmitting information held by the physical medium to the content reproducing apparatus. The short range wireless communication module may be at least one of an NFC communication module, an RFID communication module, a Bluetooth communication module, a Wi-Fi communication module, and a high speed proximity communication module.

High-speed proximity communication refers to a next-generation near field communication technology that transmits data instantaneously at a giga-level while supplying wireless power to a medium storing a large amount of data in a reader (content playback device) that receives data. For example, this is the field of 60 GHz ultra high speed proximity communication technology.

The content playback device must also include a near field communication module that is identical to the physical medium to receive the information. Hereinafter, physical media will be referred to simply as 'media'. For example, the medium may be in the form of a card containing an NFC module. Of course, the medium may have various physical forms other than a card form. The medium includes information for streaming content, and the like. Specific information stored in the media will be described later.

Hereinafter, a content streaming method using short range wireless communication and a content providing method using short range wireless communication will be described in detail with reference to the accompanying drawings.

1 shows an example of a medium 110 and a content reproducing apparatus 120.

The user may purchase the medium 110 through an offline store or an online market. In FIG. 1, the content reproducing apparatus 120 illustrates a dedicated device for reproducing content. When the user brings the medium 110 close to the content reproducing apparatus 120, the content reproducing apparatus 120 receives the information included in the medium 110. It is assumed that the content reproducing apparatus 120 may perform short-range wireless communication with the medium 110. 1 separately shows the medium contact area 121 in the content reproducing apparatus 120. Typically, smart devices connect briefly with NFC cards to receive information. This is because the data stored on the NFC card is a relatively small amount of data. However, when the medium 110 stores multimedia content, the content reproducing apparatus 120 must maintain a connection with the medium 110 for a predetermined time. For example, when the content reproducing apparatus 120 receives the streaming music content from the medium 110, the content reproducing apparatus 120 must keep the connection for several minutes to several ten minutes. In this case, a scheme of sending one packet and sending and receiving an ACK according to the conventional local area communication may be inefficient.

In FIG. 1, the situation in which the medium 110 is close to the content reproducing apparatus 120 is illustrated as an example. Furthermore, the user may place the medium 110 on the medium contact area 121 of the content reproducing apparatus 120 to receive the content. In this case, the short range wireless communication module (eg, NFC antenna) may be located at the bottom of the medium contact area 121. In FIG. 1, the medium 110 stores certain content.

The content reproducing apparatus 120 measures an intensity of a signal transmitted from the medium 110 or an error rate of data transmitted from the medium 110. In FIG. 1, an example of measuring a signal strength based on a received signal strength indicator (RSSI) is illustrated, and an example of measuring a data error rate using a bit error ratio (BER) is illustrated. The strength of the signal may be measured based on the Received Channel Power Indicator (RCPI).

The content reproducing apparatus 120 may receive content from the medium 110 or receive and store it at a time when the signal strength is greater than or equal to the reference value or the data rate is less than or equal to the reference value. In the latter case, the content reproducing apparatus 120 may store the content in a storage place and then play the stored content at the user's request.

2 illustrates an example of a content reproducing apparatus 120 that receives content from a medium 110. 2A illustrates an example in which the medium 110 directly contacts the content reproducing apparatus 120. FIG. 2A illustrates an example in which the user places the medium 110 on the medium contact area 121 of the content reproducing apparatus 120. 2 (b) shows an example in which the medium 110 is located on the holder 125 located near the content reproducing apparatus 120. In FIG. 2B, the holder 125 is located at a distance at which the content playback device 120 and the medium 110 can perform short-range communication. In FIG. 2, the medium 110 is in a fixed state. The content reproducing apparatus 120 basically receives the content from the medium 110 in a fixed position.

3 is an example of a process flow diagram for a content streaming method 200 using near field communication. 3 illustrates an example in which the content reproducing apparatus 120 receives content from the medium 110.

The content reproducing apparatus 120 accesses the medium 110 through short-range wireless communication (211). The content reproducing apparatus 120 requests the content streaming from the medium 110 (221). The content reproducing apparatus 120 starts to receive the content from the medium 110 to be streamed (222).

When the content reproducing apparatus 120 starts streaming, the content reproducing apparatus 120 measures the strength of a signal transmitted by the medium 110 or an error rate of data transmitted by the medium 110 from a predetermined reference time point (231). The reference time point means a time at which content playback starts or a certain time point during content playback. The content reproducing apparatus 120 may continuously measure the signal strength or error rate for a predetermined time (eg, 1 second). The content reproducing apparatus 120 may measure the signal strength or the error rate at a predetermined number of times (for example, five times) for a predetermined time.

In general, the signal strength may be known through a received signal strength indicator (RSSI). The error rate may be measured using a retransmission rate of the data packet received from the medium 110 or an error check bit (CRC) included in the data received from the medium 110. In general, the error rate can be known based on the bit error ratio (BER). For convenience of explanation, it is assumed that signal strength uses RSSI and data error rate uses BER.

The content reproducing apparatus 120 may determine that data is stably transmitted when the signal strength RSSI is greater than or equal to the reference value or the error rate BER is less than or equal to the reference value. For example, this may correspond to a state in which the medium 110 does not move in contact with the medium connection area 121 of the content reproducing apparatus 120. If the signal strength (RSSI) is above the reference value or the error rate (BER) is below the reference value, the content playback device 120 transmits a continuous streaming request to the medium 110 (241), without exchanging an ACK message with the medium 110. Streaming can be received continuously (242). The process 241 of delivering the continuous streaming request may be omitted. That is, when the content reproducing apparatus 120 does not transmit a separate message, it may automatically receive continuous streaming from the medium 110 without exchanging ACK messages.

In general, when a certain data packet is transmitted through short-range wireless communication or the like, the subject receiving the data packet sends a message to the transmitting party indicating that the information has been properly received. However, when the medium 110 such as the NFC card is positioned on the content reproducing apparatus 120 without moving, the medium 110 and the content reproducing apparatus 120 exchanging the ACK message and do not transmit or receive data, but the reliability of data transmission and reception. Can be secured. Therefore, in a situation where the reliability of data transmission and reception is secured, the content reproducing apparatus 120 continuously receives streaming without exchanging an ACK message with the medium 110.

When content is streamed without exchanging ACK messages, the stream may be received without exchanging ACK messages only for a predetermined time (eg, 1 second). In this case, when a predetermined time elapses, the strength of the signal transmitted by the content reproducing apparatus 120 or the error rate of the data transmitted by the medium 110 may be measured (251). The content reproducing apparatus 120 transmits a continuous streaming request to the medium 110 when the signal strength (RSSI) is greater than or equal to the reference value or the error rate (BER) is less than or equal to the reference value (261). In operation 262, streaming may be continuously received from 110.

After a predetermined time has elapsed since the start of continuous streaming, the content reproducing apparatus 120 may measure the strength of a signal transmitted again or an error rate of data transmitted by the medium 110 (operation 271). When the signal strength RSSI is less than the reference value or the error rate BER exceeds the reference value, the content playback device 120 may transmit a streaming stop request to the medium 110 (281). The content streaming is then stopped (282). Of course, the content reproducing apparatus 120 may stop receiving the content without transmitting the streaming stop request 281. The content streaming will end while the medium 110 is detached from the medium contact area 121 of the content playback device 120 or away from the uncommunicable distance.

A reference value associated with the signal strength RSSI is called a first reference value, and a reference value associated with an error rate BER is called a second reference value. In this case, the first reference value may be the maximum value of the signal strength, and the second reference value may be the minimum value of the error rate. Of course, each reference value may have a slightly different value.

When the content reproducing apparatus 120 measures the signal strength (RSSI) or the error rate (BER) of the signal continuously or for a predetermined number of times for a predetermined time, the value comparing with the reference value is the average value of the RSSI for the predetermined time or the predetermined time. It may be an average value of BER.

The content reproducing apparatus 120 may be connected to the medium 110 when the signal strength RSSI maintains a maximum value for a reference time, or when the error rate BER of data transmitted by the medium 110 maintains a minimum value for a reference time. Continuous streaming may be requested without exchanging ACK messages.

On the other hand, when the medium 110 is located at a fixed position, the signal strength or error rate is likely to have a constant value during the reference time. At this time, the signal strength is a range of values exceeding a certain reference value, and the error rate corresponds to a value below a certain reference value. Accordingly, the content reproducing apparatus 120 may determine that the medium 110 is in a fixed position when the signal strength or the error rate measured a plurality of times maintains a constant value. In other words, the signal strength (or error rate) is in a certain range. In this case, the content reproducing apparatus 120 may receive or receive content from the medium 100 without exchanging an ACK message with the medium 110 for a predetermined time. For example, when the signal strength RSSI measured five times is in the range of X dBm to Y dBm, the content reproducing apparatus 120 may receive or receive content from the medium 100 without exchanging an ACK message.

4 is an example of a process flow diagram for a method 300 for providing content using short-range wireless communication. 3 illustrates an example in which the content reproducing apparatus 120 streams content from the medium 110, and FIG. 4 illustrates an example in which the content reproducing apparatus 120 receives and stores all the contents stored in the medium 110.

FIG. 4A illustrates an example in which the RSSI value is greater than or equal to the reference value and the BER is less than or equal to the reference value. The content reproducing apparatus 120 accesses the medium 110 through short-range wireless communication (311). The content reproducing apparatus 120 requests the content delivery from the medium 110 (321). The content reproducing apparatus 120 starts receiving the content from the medium 110 (322).

The content reproducing apparatus 120 measures an intensity of a signal transmitted by the medium 110 or an error rate of data transmitted by the medium 110 from a predetermined reference time after receiving the content or from a reception start time (331). The content reproducing apparatus 120 may continuously measure the signal strength or the error rate for a predetermined time. The content reproducing apparatus 120 may measure the signal strength or the error rate at a predetermined number of times for a certain time.

The content reproducing apparatus 120 may determine that data is stably transmitted when the signal strength RSSI is greater than or equal to the reference value or the error rate BER is less than or equal to the reference value. If the signal strength RSSI is greater than or equal to the reference value or the error rate BER is less than or equal to the reference value, the content reproducing apparatus 120 requests the remaining content from the medium 110 (341). Alternatively, the content reproducing apparatus 120 may request the remaining content from the medium 110 when the signal strength RSSI or the error rate BER is maintained within a predetermined range.

The content reproducing apparatus 120 may receive all remaining contents without exchanging an ACK message with the medium 110 (342). Of course, the content reproducing apparatus 120 may automatically receive all of the remaining contents without exchanging an ACK message with the medium 110 without requesting the remaining contents 341.

The content reproducing apparatus 120 stores all received content in its storage medium (351). Thereafter, the content reproducing apparatus 120 may reproduce the content according to a reproduction command of the user (361).

FIG. 4B illustrates an example in which the RSSI value is less than the reference value or the BER is more than the reference value. The content reproducing apparatus 120 accesses the medium 110 through short-range wireless communication (311). The content reproducing apparatus 120 requests the content delivery from the medium 110 (321). The content reproducing apparatus 120 starts receiving the content from the medium 110 (322).

The content reproducing apparatus 120 measures an intensity of a signal transmitted by the medium 110 or an error rate of data transmitted by the medium 110 from a predetermined reference time or streaming start time after receiving the content (331).

The content reproducing apparatus 120 may transmit the measurement result to the medium 110 when the signal strength RSSI is less than the reference value or the error rate BER is greater than the reference value (371). Alternatively, the content reproducing apparatus 120 may transmit the measurement result to the medium 110 when the signal strength RSSI or the error rate BER is out of a predetermined range.

In this case, the content reproducing apparatus 120 does not receive the content (372). Of course, the content reproducing apparatus 120 may not receive a separate streaming stop request to the medium 110 and may not receive the content.

5 is another example of a procedure flow diagram for a content providing method 400 using short-range wireless communication. 5 illustrates an example in which the content reproducing apparatus 120 receives and stores all the contents stored in the medium 110 as shown in FIG. 4. In FIG. 5, the signal strength (RSSI) or error rate (BER) is measured using a test packet.

5A illustrates an example in which the RSSI value is greater than or equal to the reference value and the BER is less than or equal to the reference value. The content reproducing apparatus 120 accesses the medium 110 through short-range wireless communication (411). The content reproducing apparatus 120 requests a test packet from the medium 110 (421). The content reproducing apparatus 120 receives a test packet from the medium 110 (422).

The content reproducing apparatus 120 measures the strength of a signal transmitted by the medium 110 or an error rate of data transmitted by the medium 110 from a predetermined reference time point after receiving the test packet or from receiving the test packet (431). . The content reproducing apparatus 120 may continuously measure the signal strength or the error rate for a predetermined time. The content reproducing apparatus 120 may measure the signal strength or the error rate at a predetermined number of times for a certain time.

The content reproducing apparatus 120 may determine that data is stably transmitted when the signal strength RSSI is greater than or equal to the reference value or the error rate BER is less than or equal to the reference value. If the signal strength RSSI is greater than or equal to the reference value or the error rate BER is less than or equal to the reference value, the content reproducing apparatus 120 requests the medium 110 to transmit the content (441). Alternatively, the content reproducing apparatus 120 may request the remaining content from the medium 110 when the signal strength RSSI or the error rate BER is maintained within a predetermined range.

The content reproducing apparatus 120 may receive all of the content without exchanging an ACK message with the medium 110 (442). Of course, the content reproducing apparatus 120 may automatically receive all of the remaining content without exchanging an ACK message with the medium 110 without requesting content 441.

The content reproducing apparatus 120 stores all received content in its storage medium (451). Thereafter, the content reproducing apparatus 120 may reproduce the content according to the playback command of the user (461).

FIG. 5B illustrates an example in which the RSSI value is less than the reference value or the BER is more than the reference value. The content reproducing apparatus 120 accesses the medium 110 through short-range wireless communication (411). The content reproducing apparatus 120 requests a test packet from the medium 110 (421). The content reproducing apparatus 120 receives a test packet from the medium 110 (422).

The content reproducing apparatus 120 measures the strength of a signal transmitted by the medium 110 or an error rate of data transmitted by the medium 110 from a predetermined reference time point after receiving the test packet or from receiving the test packet (431). .

The content reproducing apparatus 120 may transmit the measurement result to the medium 110 when the signal strength RSSI is less than the reference value or the error rate BER is greater than the reference value (443). Alternatively, the content reproducing apparatus 120 may transmit the measurement result to the medium 110 when the signal strength RSSI or the error rate BER is out of a predetermined range.

In this case, the content reproducing apparatus 120 may not receive the content. Furthermore, as shown in FIG. 5B, content may be received using a conventional method of exchanging ACK messages (444). Of course, it is assumed that the medium 110 is adjacent to the content reproducing apparatus 120. Thereafter, the content reproducing apparatus 120 stores the received content in its storage medium (451). Thereafter, the content reproducing apparatus 120 may reproduce the content according to the playback command of the user (461).

5, the content reproducing apparatus 120 measures the strength or data error rate of a signal from the medium 110 using a test packet. Here, the test packet may use a packet having predefined data. In this case, the content reproducing apparatus 120 may measure the data error rate only based on whether the predefined data content is transmitted as it is without calculating the packet retransmission rate.

In addition, the test packet may use some content data stored in the medium 110. That is, FIG. 4 may be regarded as an example of using a part of content data as a test packet. In FIG. 4, a process 322 in which the medium 110 delivers original content may correspond to an example of delivering a test packet.

6 shows an example of the configuration of the medium 110. 6 exemplarily illustrates a medium in the form of an NFC card. The medium 110 of FIG. 6 exemplarily illustrates the medium 110 of FIG. 1.

The antenna 111 transmits the information stored or generated by the medium to the content reproducing apparatus by RF communication with the content reproducing apparatus. The control chip 112 selects information stored in the medium 110 according to an external RF signal, or selects information by processing the stored information. The control chip 112 interprets the command of the RF signal received from the antenna 111, and generates a predetermined information in response to the control to transmit to the antenna 111 or.

The medium 110 stores certain information in the memory 113. In FIG. 6, the control chip 112 and the memory 113 are illustrated as separate blocks, but may actually have a single chip form. In addition, the entirety of the antenna 111, the control chip 112, and the memory 113 block may have a single chip form.

In FIG. 6, the memory 113 stores test data and content. (1) When separate test data for measuring signal strength or data error rate is used as described with reference to FIG. 5, the memory 113 may store test data. (2) The content means source data for streaming or delivering to the content reproducing apparatus 120. For example, the content may be music data, image data, or the like. Furthermore, the memory 113 may store additional information not shown in FIG. 6.

7 is an example of a block diagram showing a configuration of a content reproducing apparatus 500. The content reproducing apparatus 500 of FIG. 7 is an example showing the configuration of the content reproducing apparatus 120 described above. FIG. 7 shows an example in which only major components of the content reproducing apparatus 500 are shown in blocks.

The CPU 510 performs control of the content reproducing apparatus 500 as a main processor and processes a signal exchanged with the medium 110. The memory 520 may be used as a buffer in the operation processing of the CPU 510. Furthermore, the memory 520 may store content received from the medium 110. Of course, the content may be stored using a separate storage medium in addition to the memory 520. Storage media is meant to include a variety of media such as flash memory, solid-state drive (SSD), hard disk, and the like.

The short range communication module 530 refers to a module that performs short range communication with the medium 110. The short range communication module 530 includes an antenna, a control chip, and the like.

The display device 540 may basically output content. For example, if the content is an image, the display apparatus 540 outputs an image. In addition, the display apparatus 540 may output content information (meta data). For example, if the content is a sound source, information about a file name, a sound source name, a sound source list, an album name, a music composer, a song composer, a singer of a sound source, a music producer, a lyrics of a sound source, an evaluation of a sound source, etc. It may include at least one of. In addition, the display device 120 may output an interface screen for the user.

The speaker 550 outputs sound included in the content. For example, if the content is a sound source, the sound source is output.

The interface device 560 receives a control command for the content playback device 500 from the user. For example, the user may use the interface device 560 to communicate with the medium 110 and the content reproducing apparatus 500, and to stream or receive specific content from the medium 110. The interface device 560 is meant to include various devices such as a physical button, a touch panel, a keyboard, a keypad, and the like.

Meanwhile, the user may edit the information stored in the medium 110 through the

content reproducing apparatuses

120 and 500. The user may edit (delete, update, etc.) the content itself stored in the medium 110 or edit content information about the content stored in the medium. For example, the user may delete content stored in the medium 110, store new content in the medium 110, change metadata of the content (song name, artist name, album information, etc.), change the order of the content list, and the like. have.

8 is an example of a process flow diagram for a method 600 for editing content to content information. The content reproducing apparatus 120 connects to the medium 110 via short-range wireless communication (611). The content reproducing apparatus 120 requests the content information from the medium 110 (621), and the medium 110 transmits the content information to the content reproducing apparatus 120 (622).

In the process of receiving the content information, the

content reproducing apparatuses

120 and 500 may measure the strength (RSSI) of the signal transmitted from the medium 110 or the error rate (BER) of the received data as described above (631). . The process may then proceed if the signal strength (RSSI) is greater than or equal to the reference value, or if the data error rate (BER) is less than or equal to the reference value. That is, the content information and the like may be edited when the medium 110 is located (fixed) in the medium contact area 121 of the content reproducing apparatus 120.

The

content reproducing apparatus

120 or 500 outputs the received content information (641). The user checks the content information, and inputs the object to be edited and the information to be edited (651). The editing command includes data for which the user wishes to edit the content or the content information.

The

content reproducing apparatuses

120 and 500 transmit the editing information to the medium 110 (661). The medium 110 updates its own stored data based on the edited information (671). For example, a user may delete stored content, update stored content, store new content, and correct content information (metadata) of the stored content.

Furthermore, the medium 110 may transmit the request of the

content reproducing apparatuses

120 and 500 or the automatically edited content information to the content reproducing apparatuses 120 and 500 (681). The

content reproducing apparatuses

120 and 500 may output the edited content information (691).

Although not illustrated in FIG. 8, the

content reproducing apparatuses

120 and 500 may separately transmit a test packet to measure a signal strength (RSSI) or a data error rate (BER) as described in FIG. 5.

The embodiments and the drawings attached to this specification are merely to clearly show a part of the technical idea included in the above-described technology, and those skilled in the art can easily make it within the scope of the technical idea included in the above-described technology and drawings. It will be apparent that both the inferred modifications and the specific embodiments are included in the scope of the above-described technology.

Claims

Connecting the content reproducing apparatus to a medium storing the content through the short range wireless communication module;

The content reproducing apparatus starting to receive the content from the medium;

Measuring, by the content reproducing apparatus, the strength of a signal transmitted by the medium or an error rate of data transmitted by the medium at a predetermined number of times during the reference time from the reference time; And

When the medium remains in contact with a specific region of the content reproducing apparatus or is located at a fixed position and the signal strength is greater than or equal to a first reference value, or the error rate of the data is less than or equal to a second reference value, the content reproducing apparatus is configured to perform the above operation. And streaming the content without exchanging an ACK message with a medium.
The method of claim 1,

And the content reproducing apparatus receives the content without exchanging the ACK message with the medium for a predetermined time or until all of the content is received.
The method of claim 1,

The short range wireless communication module may be at least one of an NFC communication module, an RFID communication module, a Bluetooth communication module, a Wi-Fi communication module, and a high speed proximity communication module.
The method of claim 1,

And the content reproducing apparatus measures the error rate using a retransmission rate of a data packet received from the medium or an error check bit (CRC) included in data received from the medium.
The method of claim 1,

The strength of the signal is an average value of the strength of the signal measured during the reference time, the error rate of the data is a content streaming method using short-range wireless communication is the average value of the data error rate measured during the reference time.
The method of claim 1,

The content reproducing apparatus is configured to receive the content without exchanging an ACK message with the medium when the signal strength falls within a predetermined range during the reference time, or when the error rate of the data falls within a certain range during the reference time. Content streaming method using communication.
The method of claim 1,

And the content is at least one of a data group including music data, voice data, and image data.
Connecting the content reproducing apparatus to a medium storing the content through the short range wireless communication module;

Receiving, by the content reproducing apparatus, a test packet from the medium;

Measuring, by the content reproducing apparatus, the strength of a signal transmitted by the medium or an error rate of data transmitted by the medium at a predetermined number of times during the reference time from the time point at which the test packet is received or the reference time point; And

When the medium remains in contact with a specific region of the content reproducing apparatus or is located at a fixed position and the signal strength is greater than or equal to a first reference value, or the error rate of the data is less than or equal to a second reference value, the content reproducing apparatus is configured to perform the above operation. And receiving and storing all of the contents without exchanging an ACK message with a medium.
The method of claim 8,

And receiving, by the content reproducing apparatus, a reproduction command, and reproducing the contents.
The method of claim 8,

The strength of the signal is an average value of the strength of the signal measured during the reference time, the error rate of the data is a content providing method using short-range wireless communication is the average value of the data error rate measured during the reference time.
The method of claim 8,

The content reproducing apparatus is a content providing method using short-range wireless communication that receives and stores all of the content when the signal strength is in a certain range during the reference time or the error rate of the data in a certain range during the reference time. .
The method of claim 8,

And the test packet is data including some of the content stored by the medium.
Connecting the content reproducing apparatus to the medium via the short range wireless communication module;

Receiving, by the content reproducing apparatus, a data packet from the medium;

Measuring, by the content reproducing apparatus, the strength of a signal transmitted by the medium or an error rate of data transmitted by the medium at a predetermined number of times during the reference time from the time point at which the data packet is received or the reference time point; And

When the medium remains in contact with a specific region of the content reproducing apparatus or is located at a fixed position and the signal strength is greater than or equal to a first reference value, or the error rate of the data is less than or equal to a second reference value, the content reproducing apparatus is configured to perform the above operation. Transmitting data to the medium without exchanging an ACK message with the medium for a reference time.
The method of claim 13,

And the data is at least one of content data or metadata about content stored by the medium.
The method of claim 13,

And storing the received data in the medium.
Connecting to the medium using a short-range communication module and measuring the strength of a signal received from the medium or an error rate of data transmitted by the medium, and the signal intensity is equal to or greater than a first reference value or the error rate of the data is a second reference value. A content reproduction apparatus for receiving data from or transmitting data to the medium without exchanging an ACK message with the medium in the following cases;