KR101838271B1 - Portable video contents playback device and operating method thereof - Google Patents

Abstract

A portable video content reproduction apparatus and an operation method thereof are disclosed. The portable video content reproducing apparatus and the method of operating the same according to the present invention can be applied to a portable video content reproducing apparatus and a method of operating the same when a video signal is received through a DMB (Digital Multimedia Broadcasting) The video content can be directly received and reproduced via the VOD (Video On Demand) service through the network, thereby enabling the user to view the video content without interruption.

Description

TECHNICAL FIELD [0001] The present invention relates to a portable video content playback apparatus and a method of operating the portable video content playback apparatus.

The present invention relates to a portable image content reproduction apparatus and an operation method thereof, which can receive and reproduce image content data through a network.

2. Description of the Related Art Recently, various portable devices capable of network communication such as a smart phone and a tablet PC have emerged, and various services that can be applied to such portable devices are being released.

In particular, since these portable devices are equipped with a playback function capable of playing back image contents, a service for providing various image contents to such portable devices is emerging.

Representative services for providing image contents to portable devices include a DMB broadcasting service for broadcasting broadcast image contents in real time to portable devices through a DMB (Digital Multimedia Broadcasting) communication network, There is a VOD (Video On Demand) service for providing image contents to portable devices through the Internet.

Since DMB broadcasting service is free, it is a service frequently used by users having portable devices. However, the DMB broadcasting service is characterized by the characteristics of the DMB communication network, but in a certain area, there are many shaded areas where the intensity of the wireless signal is weak and image contents are not received well. On the other hand, the VOD service is free or paid service, and it receives almost no image contents through a mobile communication network or a wireless LAN network having a well-established nationwide infrastructure. Therefore, there is almost no shadow area in comparison with the DMB broadcasting service.

Accordingly, in a portable device capable of playing back image contents, when the strength of the wireless signal is weakened while receiving the image content through the DMB broadcasting service and playing the image content, the image content is directly transmitted through the mobile communication network or the wireless LAN network It is necessary to study a technique of allowing the user to view the video contents without interruption by receiving and reproducing the video contents through the VOD service.

In addition, in the case of receiving image contents on a portable device through a VOD service, if the user views the image contents in a landscape view mode with the portable device tilted horizontally, the corresponding image contents must be displayed on the entire display of the portable device It is necessary to transmit a large amount of image content having a high resolution to the portable device. However, if the user views the image content in a portrait view mode in which the portable device is vertically laid out, The image content of a high resolution does not need to be transmitted to the portable device because there is no problem in readability even if the image content of low resolution is used.

Accordingly, in order to reduce the data usage fee of the VOD service due to the use of the mobile communication network and to prevent data disconnection due to the transmission of a large amount of video contents, the user sets whether the portable device is set to the landscape view mode or the portrait view mode It is necessary to study techniques for improving the efficiency in providing VOD service by transmitting low-capacity video contents having a low resolution to a portable device in a case where it is set as a portrait view mode.

The present invention relates to a method and apparatus for receiving a video content through a DMB (Digital Multimedia Broadcasting) broadcasting service and reproducing the video content through a mobile communication network or a wireless LAN network, On Demand service, which can support a user to view the video content without interruption, and an operation method thereof.

In addition, the present invention distinguishes whether or not the user sets the portable video content playback apparatus to the landscape view mode or the portrait view mode. When the user sets the portable video content playback apparatus to the portrait view mode, the low- To a playback apparatus, thereby providing a technique for increasing the efficiency in providing a VOD service.

A portable video content playback apparatus according to an exemplary embodiment of the present invention includes a DMB playback unit for receiving data on an image content broadcast through a DMB communication network from a DMB (Digital Multimedia Broadcasting) A wireless signal measuring unit for measuring an intensity of a wireless signal received through a DMB communication network; a wireless signal measuring unit for measuring an intensity of the wireless signal received through the DMB communication network, when the intensity of the wireless signal is measured to be less than a predetermined reference value, A reproduction point information generation unit for generating information on a last reproduction point reproduced last, information on identification information on the image content, information on the last reproduction point, and transmission request for data after the last reproduction point of the image content To the VOD (Video On Demand) data transmission apparatus The VOD data transmission apparatus receives the data after the last playback point of the video content in a streaming manner through the video data requesting unit and the mobile communication network or the wireless LAN network to reproduce the video content after the last playback point And a video substitution playback unit.

According to another aspect of the present invention, there is provided a method of operating a portable video content playback apparatus, the method comprising: receiving data for video content broadcasted from a DMB broadcast transmission apparatus through a DMB communication network to reproduce the video content; Measuring the intensity of the radio signal received through the first and second reference points when the intensity of the radio signal is measured to be less than a predetermined reference value, Transmitting to the VOD data transmission apparatus a request for transmission of identification information on the video content, information on the last playback point, and data after the last playback point of the video content to the VOD data transmission apparatus; The VOD data transmission field through the communication network or the wireless LAN network From a step of reproducing the image contents following the last playback point to receive data following the last reproducing point of the video content in a streaming manner.

The portable video content reproducing apparatus and the method of operating the same according to the present invention can be applied to a portable video content reproducing apparatus and a method of operating the same when a video signal is received through a DMB (Digital Multimedia Broadcasting) The video content can be directly received and reproduced via the VOD (Video On Demand) service through the network, thereby enabling the user to view the video content without interruption.

In addition, the present invention distinguishes whether or not the user sets the portable video content playback apparatus to the landscape view mode or the portrait view mode. When the user sets the portable video content playback apparatus to the portrait view mode, the low- It is possible to provide a technique for increasing the efficiency in providing the VOD service.

1 is a block diagram illustrating a portable video content reproducing apparatus according to an embodiment of the present invention.
FIG. 2 is a view for explaining a landscape view mode and a portrait view mode of a portable video content playback apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating an operation method of a portable video content playback apparatus according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a portable video content reproducing apparatus according to an embodiment of the present invention.

Referring to FIG. 1, a portable image content reproducing apparatus 110 according to the present invention includes a DMB (Digital Multimedia Broadcasting) reproducing unit 111, a wireless signal measuring unit 112, a reproduction point information generating unit 113, Unit 114, and a video substitution reproducing unit 115. [

Here, the portable video content playback apparatus 110 according to an embodiment of the present invention may receive various types of video content, such as a smart phone, a tablet PC, a PDA, a notebook computer, etc., Lt; RTI ID = 0.0 > microprocessor-based < / RTI >

The DMB playback unit 111 receives data on video content broadcasted through a DMB communication network from a DMB broadcast transmission apparatus (not shown) and reproduces the video content.

The radio signal measuring unit 112 measures the intensity of a radio signal received through the DMB communication network.

At this time, according to an embodiment of the present invention, the radio signal measuring unit 112 checks RSSI (Received Signal Strength Indication) of the radio signal received at the receiver of the portable video content reproducing apparatus 110 through the DMB communication network The strength of the radio signal can be measured.

When the intensity of the radio signal is measured to be less than a predetermined reference value, the reproduction point information generator 113 generates a reproduction point information for the last reproduction point at which the image content was last reproduced Information.

At this time, according to an embodiment of the present invention, the reproduction point information generation unit 113 generates information about the reproduction time corresponding to the last reproduction point at which the image content was last reproduced, as information about the last reproduction point can do.

For example, if the video content is a total of 60 minutes of content and the intensity of the radio signal is measured below the predetermined reference value at the time the video content is reproduced for a total of 40 minutes through the DMB playback unit 111, The information generating unit 113 may generate information on the reproduction time of "40 minutes" corresponding to the last reproduction point at which the image content was reproduced last, as information on the last reproduction point.

The video data requesting unit 114 transmits a transmission request for the identification information for the video content, the information about the last playback point, and the data after the last playback point of the video content to a video on demand (VOD) 130).

Here, the identification information of the image content refers to the title of the image content or unique information for identifying the image content, such as an ID previously allocated to the image content.

At this time, the VOD data transmission apparatus 130 transmits identification information on the video content, information on the last playback point, and transmission request for data after the last playback point of the video content from the portable video content playback apparatus 110 The data corresponding to the identification information of the image content is checked from the data storage storing the data of the plurality of image contents, and then the information about the reproduction time corresponding to the last reproduction point of the image content The data after the last playback point of the video content is streamed to the portable video content playback apparatus 110 at a point corresponding to the playback time of the data for the video content, do.

For example, when the VOD data transmission apparatus 130 receives the title information "ABC" as the identification information for the image content from the portable image content playback apparatus 110, and the last playback point "40 minutes" When receiving the data transmission request for the video content, the VOD data transmission device 130 receives the video content having the title "ABC" from the data storage in which a plurality of video contents are stored You can see the data about the content.

Then, the VOD data transmission apparatus 130 transmits data of video contents titled "ABC" stored in the data storage on the basis of information on the reproduction time for the last reproduction point "40 minutes" Quot; 40 minutes "of the video content to the portable video content reproduction apparatus 110 using the streaming method with the point corresponding to the reproduction time" 40 minutes " .

The video substitution playback unit 115 receives the data after the last playback point of the video content from the VOD data transmission apparatus 130 through the mobile communication network or the wireless LAN network in a streaming manner, .

As a result, the portable video content reproducing apparatus 10 according to the present invention receives the video content through the DMB broadcasting service and reproduces the video content through the mobile communication network or the wireless LAN network By receiving and playing back the video content directly through the VOD service, the user can support the video content without interruption.

According to an embodiment of the present invention, the portable video content playback apparatus 110 may further include a mode determination unit 116, a first request unit 117, and a second request unit 118. [

The mode determination unit 116 detects the inclination of the portable video content playback apparatus 110 through the tilt detection sensor and determines whether the portable video content playback apparatus 110 wants to display the video content in the landscape view mode, It is determined whether or not to display the image content.

As shown in FIG. 2, in the horizontal viewing mode and the vertical viewing mode, depending on whether the user tilts the portable video content reproducing apparatus 110 in the horizontal direction or uses the portable video content reproducing apparatus 110 in the vertical direction, Which means that the method displayed on the portable video content reproducing apparatus 110 is changed.

For example, when the user tilts the portable image content reproduction apparatus 110 in the transverse direction as shown in a reference numeral 210, the tilt detection sensor mounted on the portable image content reproduction apparatus 110 is used as a portable image content reproduction apparatus The mode judging unit 116 judges that the portable video content reproducing apparatus 110 wants to display the video contents in the landscape view mode .

When the image content is displayed in the landscape view mode as shown at 210, the display content of the portable image content playback apparatus 110 is displayed in a full state.

On the other hand, when the user uses the portable image content reproduction apparatus 110 while standing vertically, as shown in the reference numeral 220, the tilt detection sensor mounted on the portable image content reproduction apparatus 110 is used as a portable image content reproduction apparatus The mode determination unit 116 determines that the portable video content playback apparatus 110 wants to display the video content in the portrait view mode, can do.

In the case where the image content is displayed in the portrait mode as shown at 220, the image content may be displayed only on a part of the upper part of the display of the portable image content reproduction apparatus 110.

If the mode determiner 116 determines that the portable video content playback apparatus 110 is in the landscape view mode as indicated by reference numeral 210, the first request unit 117 transmits the VOD data to the VOD data transmission apparatus 130 And transmits a data transmission request for the image content compressed with the first resolution.

In this case, according to an embodiment of the present invention, the VOD data transmission device 130 stores data on the image content compressed at the first resolution on the data storage, When receiving a request to transmit data for the image content compressed at the first resolution, transmits data for the image content compressed at the first resolution stored in the data storage to the portable image content playback apparatus 110 Can be transmitted in a streaming manner.

On the other hand, if the mode determining unit 116 determines that the portable video content reproducing apparatus 110 is in the vertical viewing mode as indicated by the reference numeral 220, the second requesting unit 118 transmits the VOD data to the VOD data transmitting apparatus 130, And transmits a data transmission request for the image content compressed to a second resolution lower than the first resolution.

According to an embodiment of the present invention, when the VOD data transmission device 130 receives a request for transmission of data for the image content compressed at the second resolution from the portable video content reproduction apparatus 110, Downscale compression of the image content compressed at the first resolution and stored in the storage medium with data having the second resolution so that the second resolution The data for the image content on which the downscale compression is performed can be transmitted in a streaming manner.

Here, the first resolution may be a high definition (HD) resolution such as 1080p or 720p, and the second resolution may be a SD resolution such as 480p.

When the portable video content playback apparatus 110 is in the landscape view mode, the video content is displayed in a state that the display screen of the portable video content playback apparatus 110 is fully filled. Therefore, the VOD data transmission apparatus 130 displays the high- It is necessary to receive the contents. However, when the portable video content playback apparatus 110 is in the portrait view mode, the video content is displayed only at a small portion of the display screen of the portable video content playback apparatus 110, It is not necessary to receive the image contents of the image. Therefore, if the mode determining unit 116 determines that the portable image content reproducing apparatus 110 is in the vertical viewing mode as indicated by the reference numeral 220, the portable image content reproducing apparatus 110 according to the present invention transmits the second request The unit 118 transmits a request for transmission of data to the VOD data transmission apparatus 130 at a low resolution compressed image content, thereby reducing traffic that may occur in the network communication network, Data usage fee can also be lowered.

In this case, according to an embodiment of the present invention, the portable image content reproducing apparatus 110 may further include a resolution table storage unit 119.

The resolution table storage unit 119 stores a plurality of different screen size values and predetermined different resolutions (the predetermined different resolutions are lower than the first resolution) corresponding to each of the plurality of different screen size values And stores and maintains the recorded resolution table.

In this regard, information may be recorded in the resolution table as shown in Table 1 below.

A plurality of different screen size values Different resolutions 3.2 inches 600p 2.8 inches 480p 2.5 inches 320p ... ...

The second request unit 118 may include a size value check unit 120, a resolution check unit 121, and a data request unit 122.

If it is determined that the portable image content reproduction apparatus 110 is in the portrait mode, the size value verification unit 120 checks the size value of the image to be reproduced in the portrait mode.

The resolution checking unit 121 refers to the resolution table to check a resolution corresponding to a size value of a screen on which the image content is to be reproduced in the portrait mode.

The data requesting unit 122 determines the determined resolution as the second resolution and transmits a data transmission request for the image content compressed to the second resolution to the VOD data transmitting apparatus 130. [

In this case, when the portable video content reproduction apparatus 110 is in the portrait view mode, the size of the screen on which the image content is reproduced in the upper part of the display is "3.2 inches" Quot; 3.2 inches ", which is the size value of the screen on which the image content is to be reproduced, in the view mode.

Then, the resolution check unit 121 refers to the resolution table as shown in Table 1 to check the resolution of " 600p " corresponding to the size value "3.2 inches " .

The data request unit 122 determines the resolution of 600p as the second resolution and transmits a request for transmission of the data for the image content compressed at the second resolution to the VOD data transmission apparatus 130 Lt; / RTI >

At this time, according to an embodiment of the present invention, the size value determination unit 120 may determine that the image content is reproduced in the portrait mode by the user while the image content is being reproduced at the second resolution in the portrait view mode When the size of the screen is changed, the size value of the screen on which the image content is to be reproduced can be reconfirmed in the portrait mode.

For example, if the user applies a touch input on the display while the image content is being reproduced in the portrait mode in the portable image content reproduction apparatus 110, and enlarges or reduces the screen area on which the image content is reproduced, The value checking unit 120 may re-check the size value of the screen on which the image content is to be reproduced in the portrait view mode.

The resolution check unit 121 may refer to the resolution table to re-check the resolution corresponding to the magnitude value re-confirmed for the screen on which the image content is to be reproduced in the portrait mode.

Then, the data requesting unit 122 re-determines the re-confirmed resolution to the second resolution and transmits a request for transmission of the data for the video content compressed to the VOD data transmitting apparatus 130 to the re-determined second resolution Can be retransmitted.

In this way, when the user arbitrarily adjusts the screen size in which the video content is displayed in the portrait view mode, the portable video content playback apparatus 110 according to the present invention adjusts the video content of the VOD And may be received from the data transmission apparatus 130.

3 is a flowchart illustrating an operation method of a portable video content playback apparatus according to an embodiment of the present invention.

In step S310, the DMB broadcasting apparatus receives data on the image content broadcasted through the DMB communication network and reproduces the image content.

In step S320, the strength of a radio signal received through the DMB communication network is measured.

In step S330, when the strength of the radio signal is measured to be less than the predetermined reference value, information on the last playback point at which the video content was last reproduced is generated at a time when the intensity is measured to be less than the predetermined reference value.

In step S340, the VOD data transmission apparatus transmits identification information on the video content, information on the last reproduction point, and transmission request for data after the last reproduction point of the video content to the VOD data transmission apparatus.

In step S350, data after the last playback point of the video content is received from the VOD data transmission apparatus through the mobile communication network or the wireless LAN network in a streaming manner, and the video content after the last playback point is played back.

According to an embodiment of the present invention, in step S330, information on the reproduction time corresponding to the last reproduction point in which the image content was last reproduced may be generated as information on the last reproduction point.

If the VOD data transmission apparatus receives a request for transmission of identification information of the video content, information on the last reproduction point, and data after the last reproduction point of the video content from the portable video content reproduction apparatus, The method comprising: confirming data corresponding to identification information of the image content from a data storage storing data of a plurality of image contents, and then, based on the information on the reproduction time corresponding to the last reproduction point of the image content, The data after the last playback point of the video content may be transmitted to the portable video content playback apparatus in a streaming manner with a point corresponding to the playback time as data of the video content.

According to still another aspect of the present invention, there is provided an operation method of a portable image reproducing apparatus, comprising: detecting a tilt of the portable image content reproducing apparatus through a tilt detecting sensor, Determining whether the user wants to display the image content in a portrait view mode or not; if the portable video content playback apparatus is determined to be in the landscape view mode, And transmitting the data transmission request to the VOD data transmission apparatus when the portable video content reproduction apparatus is determined to be in the portrait mode, Request to transmit data for image contents It may further comprise the step of transmitting.

According to an embodiment of the present invention, an operation method of the portable video content reproducing apparatus may include a predetermined resolution corresponding to a plurality of different screen size values and each of the plurality of different screen size values, And storing and maintaining a resolution table in which different resolutions are all lower than the first resolution.

At this time, the transmission of the data transmission request for the image content compressed at the second resolution may be performed when the portable image content playback apparatus is determined to be the portrait view mode, Determining a resolution corresponding to a size value of a screen on which the image content is to be reproduced in the portrait mode by referring to the resolution table; And transmitting a request for transmission of data for the image content compressed at the second resolution to the VOD data transmission apparatus, transmitting the data transmission request to the user while the image content is being reproduced at the second resolution in the portrait mode, In the vertical viewing mode, The method comprising the steps of: reconfiguring a size value of a screen on which the image content is to be reproduced in the portrait view mode; comparing the magnitude value re-confirmed with respect to a screen on which the image content is to be reproduced in the portrait mode, Reconfiguring the resolution corresponding to the re-determined resolution to the second resolution and retransmitting a request for transmission of the data for the video content compressed to the re-determined second resolution to the VOD data transmission apparatus . ≪ / RTI >

According to an embodiment of the present invention, the VOD data transmission apparatus stores data on the image content compressed in the first resolution on the data storage, and the first resolution The data for the image content compressed at the first resolution, which is stored in the data storage, is transmitted to the portable image content playback apparatus in a streaming manner when the request for transmission of the image content compressed at the first resolution is received And a controller for receiving data for the image content compressed at the first resolution stored in the data storage when the request for transmission of the image content compressed at the second resolution is received from the portable image content reproducing apparatus, Downscale compression is performed on the data having the second resolution For the portable video content reproduction device may transmit the data for the video content is scaled down to compress the second resolution is performed in a streaming manner.

The operation of the portable video content reproducing apparatus according to the embodiment of the present invention has been described with reference to FIG. Here, the operation method of the portable video content playback apparatus according to an embodiment of the present invention may correspond to the configuration of the operation of the portable video content playback apparatus 110 described with reference to FIG. 1, It will be omitted.

The method for operating the portable video content playback apparatus according to an embodiment of the present invention may be implemented by a computer program stored in a storage medium for execution through a combination with a computer.

In addition, the method of operating the portable video content reproducing apparatus according to an embodiment of the present invention may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions recorded on the medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks, and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, the present invention has been described with reference to particular embodiments, such as specific elements, and specific embodiments and drawings. However, it should be understood that the present invention is not limited to the above- And various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains.

Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

110: Portable video content playback device
111: DMB (Digital Multimedia Broadcasting) playback unit
112: radio signal measuring unit
113: Playback point information generation unit 114:
115: image replacement playback unit 116: mode determination unit
117: first request unit 118: second request unit
119: resolution table holding unit 120: size value checking unit
121: Resolution resolution unit 122: Data request unit
130: Video On Demand (VOD) data transmission device

Claims (12)

A portable video content reproducing apparatus comprising:
A DMB reproducing unit for receiving data on image contents broadcasted from a DMB (Digital Multimedia Broadcasting) broadcast transmission apparatus through a DMB communication network and reproducing the image contents;
A wireless signal measuring unit measuring a strength of a wireless signal received through the DMB communication network;
A reproduction point information generating unit for generating information on a last reproduction point at which the image content was last reproduced at a point of time when the intensity of the radio signal is measured to be less than a predetermined reference value, ;
A video data request unit for transmitting identification information on the video content, information on the last playback point, and a request for transmission of data after the last playback point of the video content to a VOD (Video On Demand) data transmission apparatus;
A video substitution reproducing unit for receiving data after the last reproduction point of the video content from the VOD data transmission apparatus through a mobile communication network or a wireless LAN network in a streaming manner and reproducing the video content after the last reproduction point, ;
Detecting a tilt of the portable video content reproducing apparatus through a tilt detection sensor and determining whether the portable video content reproducing apparatus desires to display the video content in a landscape view mode or whether to display the video content in a portrait view mode; A determination unit;
A first request unit for transmitting a request to transmit the data for the image content compressed at the first resolution to the VOD data transmission apparatus when it is determined that the portable video content reproduction apparatus is in the landscape view mode; And
A second request for transmitting a transmission request for data for the image content compressed to a second resolution lower than the first resolution to the VOD data transmission apparatus when it is determined that the portable video content reproduction apparatus is in the portrait mode, part
Lt; / RTI >
The portable video content reproducing apparatus
Storing a resolution table in which a plurality of different screen size values and a predetermined different resolution corresponding to each of the plurality of different screen size values, all of the predetermined different resolutions being lower than the first resolution, are recorded The resolution table retaining unit
Further comprising:
The second request unit
A size value checking unit for checking a size value of a screen on which the image content is to be reproduced in the portrait mode if it is determined that the portable image content reproducing apparatus is in the portrait mode;
A resolution check unit for referring to the resolution table and confirming a resolution corresponding to a size value of a screen on which the image content is to be reproduced in the portrait mode; And
And a data requesting unit for transmitting the data transmission request to the VOD data transmitting apparatus, the data request requesting the VOD data transmitting apparatus to transmit the data for the image content compressed at the second resolution,
Lt; / RTI >
The size value verifying unit
When the size of a screen on which the video content is to be reproduced is changed in the vertical viewing mode by the user while the video content is being reproduced at the second resolution in the vertical viewing mode, To re-check the size value for the screen to be,
The resolution check unit
Referring to the resolution table to reconfirm the resolution corresponding to the size value re-confirmed for the screen on which the image content is to be reproduced in the portrait mode,
The data requesting unit
And redetermines the re-confirmed resolution to the second resolution and retransmits a request for transmission of data for the video content compressed to the re-determined second resolution to the VOD data transmission apparatus. The method according to claim 1,
The reproduction point information generation unit
Generating information on a reproduction time corresponding to the last reproduction point at which the image content was last reproduced as information about the last reproduction point,
The VOD data transfer device
When receiving a request for transmission of identification information of the image content, information on the last reproduction point, and data after the last reproduction point of the image content from the portable image content reproduction apparatus, data for a plurality of image contents Of the image content, the data corresponding to the identification information of the image content from the data store in which the image content is stored, and then, based on the information on the reproduction time corresponding to the last reproduction point of the image content, And transmits the data after the last playback point of the video content to the portable video content playback apparatus in a streaming manner at a point corresponding to time. delete delete The method according to claim 1,
The VOD data transfer device
Wherein when the request for transmission of data for the image content compressed at the first resolution is received from the portable image content reproduction apparatus, the data for the image content compressed at the first resolution is stored in the data storage, The method comprising the steps of: transmitting data for the image content compressed at the first resolution stored in the data storage to the portable image content playback apparatus in a streaming manner;
When the request for transmission of data for the image content compressed at the second resolution is received from the portable image content playback apparatus, the data for the image content compressed at the first resolution, which is stored in the data storage, 2, the portable video content playback apparatus comprising: a portable video content playback apparatus for performing downscale compression on the video content, the portable video content playback apparatus comprising: Device. A method of operating a portable video content player,
Receiving data on a video content broadcasted from a DMB (Digital Multimedia Broadcasting) broadcast transmission apparatus through a DMB communication network and reproducing the video content;
Measuring a strength of a radio signal received through the DMB communication network;
Generating information on a last playback point at which the image content was last reproduced at a time point when the intensity of the radio signal is measured to be less than a predetermined reference value;
Transmitting, to the VOD (Video On Demand) data transmission apparatus, a request for transmission of identification information on the video content, information on the last playback point, and data after the last playback point of the video content;
Receiving data after the last playback point of the video content from the VOD data transmission apparatus through a mobile communication network or a wireless LAN network in a streaming manner and reproducing the video content after the last playback point;
Detecting whether the portable video content reproducing apparatus is to display the image content in a landscape view mode or not and displaying the image content in a portrait view mode by detecting a tilt of the portable image content reproducing apparatus through a tilt detection sensor ;
Transmitting a request for transmission of data for the image content compressed at the first resolution to the VOD data transmission apparatus when it is determined that the portable video content reproduction apparatus is in the landscape view mode; And
Transmitting a request for transmission of data for the image content compressed to a second resolution lower than the first resolution to the VOD data transmission apparatus when it is determined that the portable image content reproduction apparatus is in the portrait mode,
Lt; / RTI >
The operation method of the portable video content reproducing apparatus
Storing a resolution table in which a plurality of different screen size values and a predetermined different resolution corresponding to each of the plurality of different screen size values, all of the predetermined different resolutions being lower than the first resolution, are recorded Steps to Maintain
Further comprising:
Wherein the step of transmitting the data transmission request for the image content compressed at the second resolution comprises:
Checking a size value of a screen on which the image content is to be reproduced in the portrait mode if it is determined that the portable image content playback apparatus is in the portrait mode;
Confirming a resolution corresponding to a size value of a screen on which the image content is to be reproduced in the portrait mode by referring to the resolution table;
Determining the determined resolution as the second resolution and transmitting a request for transmission of data for the image content compressed to the second resolution to the VOD data transmission apparatus;
When the size of a screen on which the video content is to be reproduced is changed in the vertical viewing mode by the user while the video content is being reproduced at the second resolution in the vertical viewing mode, Reconfiguring the size value for the screen to be rendered;
Reconfiguring a resolution corresponding to a magnitude value re-confirmed for a screen on which the image content is to be reproduced in the portrait mode by referring to the resolution table; And
A step of re-determining the re-confirmed resolution to the second resolution and retransmitting a request for transmission of data for the video content compressed to the re-determined second resolution to the VOD data transmitting apparatus
And reproducing the moving image content. The method according to claim 6,
Wherein generating information for the last playback point comprises:
Generating information on a reproduction time corresponding to the last reproduction point at which the image content was last reproduced as information about the last reproduction point,
The VOD data transfer device
When receiving a request for transmission of identification information of the image content, information on the last reproduction point, and data after the last reproduction point of the image content from the portable image content reproduction apparatus, data for a plurality of image contents Of the image content, the data corresponding to the identification information of the image content from the data store in which the image content is stored, and then, based on the information on the reproduction time corresponding to the last reproduction point of the image content, And transmits the data after the last playback point of the video content to the portable video content playback apparatus in a streaming manner at a point corresponding to time. delete delete The method according to claim 6,
The VOD data transfer device
Wherein when the request for transmission of data for the image content compressed at the first resolution is received from the portable image content reproduction apparatus, the data for the image content compressed at the first resolution is stored in the data storage, The method comprising the steps of: transmitting data for the image content compressed at the first resolution stored in the data storage to the portable image content playback apparatus in a streaming manner;
When the request for transmission of data for the image content compressed at the second resolution is received from the portable image content playback apparatus, the data for the image content compressed at the first resolution, which is stored in the data storage, 2, the portable video content playback apparatus comprising: a portable video content playback apparatus for performing downscale compression on the video content, the portable video content playback apparatus comprising: Method of operation of the device. A computer-readable recording medium recording a program for performing the method of any one of claims 6, 7, and 10. A computer program stored in a storage medium for executing the method of any one of claims 6, 7, or 10 through a combination with a computer.

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