Sk Telecom Company, Ltd.

Sk Planet Co., Ltd.

Yonsei University

Sk Techx Co., Ltd.

Hong-Seo Yun

Dong-Won Na

Dong-Su Lee

Tae-Meon Bae

Hyun-Sik Na

Ja-Young Yoon

Hee-Won Park

Jung-Keun Yang

Dong-Gook Kim

Sang-Ho Chae

Joong-Yun Lee

Won-Hee Sull

Sang-Woo Rhie

Chul-Hee Lee

Hyun-Joong Park

Yoo-Ri Jung

Sang-Mok Sohn

Jong-hyun Kim

Bum-Joon Kwon

Sang-mok Sohn

The present invention relates to a cloud streaming service system, a data compressing method for preventing memory bottlenecking, and a device for same and, particularly, to a technology that: can prevent memory bottlenecking by compressing data when the transmitted amount of original buffer data exceeds a reference value, based on a system memory bandwidth; can provide a cloud streaming service by applying an order of priority by service type according to whether the processing limit, for the number of simultaneous connecting entities that can be processed by one server, is reached during a cloud streaming service; and can test whether a sever that provides a cloud streaming service is operating normally and whether a connection error occurs.

Cloud streaming service system, data compressing method for preventing memory bottlenecking, and device for same

The present invention relates to a system for a cloud streaming service, a method for same using a still-image compression technique and an apparatus therefor, particularly the method allowing a still image-based cloud streaming service by comparing the previous frame and current frame to determine and capture the region in the current frame which has changed from the previous frame, and transmitting, to a user, the changed region encoded with the still-image compression technique. By utilizing a still-image compression technique appropriate to the image type when providing the cloud streaming service, the compression efficiency of the still image and the speed of the cloud streaming service can be improved.

System for cloud streaming service, method for same using still-image compression technique and apparatus therefor

A cloud streaming service system, a cloud streaming service method using an optimal GPU, and an apparatus for the same are disclosed. A cloud streaming service can be provided by determining whether a video is played on a browser, when a playback of the video is sensed, decoding the video by using a video decoding entity determined on the basis of system resource conditions, and performing a streaming procedure corresponding to capturing, encoding and sending the decoded video. When a video is provided through the cloud streaming service, it is possible to effectively use the resources of a cloud streaming system by efficiently distributing a plurality of GPUs equipped in the cloud streaming system.

Cloud streaming service system and cloud streaming service method for utilizing an optimal GPU for video decoding based on resource conditions, and apparatus for the same

The present invention relates to a system for a cloud streaming service, a method for a still image-based cloud streaming service and an apparatus therefor. The still image-based cloud streaming service can be provided by capturing the changed area in the changed frame by comparing same with the previous frame, selecting a still-image compression technique by considering any one or more from among the size of the changed area and image characteristics, and transmitting, to a user, the changed area encoded by the still-image compression technique. When providing a still image-based cloud streaming service, by utilizing still-image compression techniques which are appropriate to the conditions, the compression efficiency of the still image and speed of the cloud streaming service can be improved.

System for cloud streaming service, method for still image-based cloud streaming service and apparatus therefor

A method for testing a cloud streaming server, and an apparatus and a system therefor are disclosed. Test result videos are created by receiving, from cloud streaming servers, test results corresponding to the key input of a preset test script; masked videos are created by masking the test result videos; and it is determined whether at least any one of the cloud streaming servers has a failure by mutually comparing test result images created by capturing the masked videos.

Method for testing cloud streaming server, and apparatus and system therefor

Disclosed is related to an interactive multimedia service system and method thereof using mobile station that is enable to see a broadcasting with real time/non-real time. A broadcasting station broadcasts a multimedia contents composed of the broadcasting contents being broadcasted and the other multimedia contents generated by the mobile station, and transmits the composed multimedia contents to the mobile station. Therefore, the user of the mobile station can see the broadcasting, which the user of mobile station participates in the interactive broadcasting with real time/non-real time.

Interactive multimedia service system and method thereof

Disclosed herein are systems and methods for evaluating video quality. The systems include a video transmitter and a video receiver. The transmitter generates feature parameters from a reference video to be transmitted and transmits the generated feature parameters along with compressed video data via a network. The video receiver receives the feature parameters and the compressed video data via the network, evaluates the video quality of the received video using the feature parameters and transmits video quality evaluation results to the video transmitter via the network.

Systems and methods for objective video quality measurements

Methods and apparatuses for measuring transmission quality of multimedia data are provided. The method comprises the steps of a transmitter transmitting multimedia data through a channel, a receiver, having received the multimedia data from the transmitter, transmitting information on transmission error of the multimedia data to the transmitter through a return channel, the transmitter estimating the received data at the receiver using the error information returned to the transmitter, and the transmitter evaluating the transmission quality of the received data by comparing the estimated received data with reference data.

Methods and apparatuses for measuring transmission quality of multimedia data

The present invention relates to a method and system for transmitting a multimedia message, which reconstructs a multimedia message to be appropriate for the receiving mobile station and transmits the reconstructed message, when the multimedia message is requested to be transmitted from a transmitting station of a higher version to the receiving station of a lower version and the multimedia message may not be transcoded into a form which can be processed by the receiving mobile station. The present invention enables to transmit various types of multimedia message without being limited by the specification of the receiving mobile station.

Method and system for transmitting multimedia message transmitted from transmitting mobile station of higher version to receiving mobile station of lower version

The present invention relates to a method of providing a multimedia messaging service, which guarantees the uniqueness of a transmitted multimedia message. In the multimedia messaging method using a mobile communication network of the present invention, a multimedia message transmitted from an originating mobile station is stored. A receiving mobile station is informed of the arrival of the multimedia message. The stored multimedia message is transmitted to the receiving mobile station if a download request is received from the receiving mobile station. In this case, the stored multimedia message includes a unique message identifier distinguished from file information of other multimedia messages stored to be retransmissible.

Method of providing multimedia messaging service using unique message identifier

Disclosed herein is a method of transmitting a multimedia message in a mobile communication system, which allows a receiving terminal to access an MMS server suitable for its specification and receive a stored multimedia message, even when a single MMS server is not equipped with all types of media conversion functions corresponding to all specifications of the receiving terminals. According to the invention, the MMS server stores a multimedia message transmitted from a transmitting terminal in a common message storage unit, and ascertains the specification of a receiving terminal while informing the receiving terminal of the arrival of the message. The MMS server includes in a notice message the address of an MMS server that services media data reproducible by the receiving terminal and informs the receiving terminal of the arrival of the multimedia message.

Growing community of inventors

Incheon, South Korea

Hong-Seo Yun