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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 36. Отображено 36.
04-05-2015 дата публикации

APPARATUS AND METHOD FOR CONFIGURING MMT PAYLOAD HEADER

Номер: KR1020150047082A
Автор: KIM, CHANG KI, YOO, JEONG JU, HONG, JIN WOO, SEO, KWANG DEOK, LEE, HONG RAE
Принадлежит:

The present invention relates to a device for configuring an MMT payload header, comprising: an MFU (media fragment unit) counting unit for determining whether at least two media fragment units (MFU) are to be integrated and mapped into one payload; and a payload header configuration unit for displaying the sequence number of an MMT processing unit (MPU) including the at least two MFUs in an MMT payload header only once. COPYRIGHT KIPO 2015 ...

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Номер записи: 1
26-04-2012 дата публикации

STREAMING SERVICE TRANSMITTING/RECEIVING DEVICE AND METHOD

Номер: KR2012053834A2
Автор: JUNG, Soon Heung, SEO, Kwang Deok, LEE, Jin Young, BAE, Seong Jun, SHIN, Sang Woo, THANG, Truong Cong, PARK, Sang Taick, RYU, Won
Принадлежит:

A streaming service transmitting and receiving device and method are provided. An arrival interval jitter is an arrival delay time variation between TCP packets, which arrive at a device receiving a streaming service. The device receiving a streaming service determines a de-jitter buffering time to absorb a network jitter before TS packets in a TCP packet are inputted into a T-STD buffer model. An initial playback delay time of the device receiving a streaming service is determined by the de-jitter buffering time.

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Номер записи: 2
15-01-2016 дата публикации

MMT DEVICE FOR LOW DELAY SERVICE AND METHOD THEREOF

Номер: KR1020160005663A
Автор: KIM, CHANG KI, YOO, JEONG JU, HONG, JIN WOO, SEO, KWANG DEOK
Принадлежит:

The present invention relates to an MMT apparatus and a method thereof. According to an embodiment of the present invention, an MMT transmission entity can set the level of ADC information included in an ADC signaling message to one of the asset level, MPU level, and movie fragment level, can include packet ID information for specifying the corresponding asset in the ADC signaling message when the set ADC information level is the asset level, and can include the packet ID information for specifying the asset having the MPU and the MPU serial number information for specifying the MPU in the ADC signaling message when the set ADC information level is the MPU level. The MMT transmission entity can also include the movie fragment serial number information for specifying the corresponding movie fragment, the MPU serial number information for specifying the MPU including the movie fragment, and packet ID information for specifying the asset having the MPU in the ADC signaling message when the ...

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Номер записи: 3
30-04-2015 дата публикации

APPARATUS AND METHOD FOR MANAGING MMT BUFFER MODEL USING RECEPTION QUALITY FEEDBACK

Номер: WO2015060561A1
Автор: KIM, Chang-Ki, YOO, Jeong-Ju, HONG, Jin-Woo, SEO, Kwang-Deok, JUNG, Tae-Jun
Принадлежит:

The present invention relates to a method for managing an MMT buffer model using a reception quality feedback (RQF) message from an MMT reception entity, comprising the steps of: receiving, from an MMT transmission entity, a measurement configuration (MC) message; measuring maximum transmission delay and minimum transmission delay, according to a request by the MC message that is received; renewing an RQF message including the maximum transmission delay and minimum transmission delay that have been measured; and transmitting the renewed RQF message to the MMT transmission entity.

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Номер записи: 4
15-06-2017 дата публикации

배터리 보호를 위한 능동 전류제어시스템

Номер: KR0101742227B1
Автор: 서광덕, 윤봉영, 최원호
Принадлежит: 파워소프트 주식회사

... 본 발명은 배터리 보호를 위한 능동제한전류제어 시스템에 관한 것으로서, 배터리의 방전시 온(on)되고, PWM(Pulse Width Modulation) 제어신호에 따라 방전 스위치의 듀티비를 제어하여, 배터리 출력전류를 기 설정된 설정전류로 제한하는 방전 스위치부, 배터리 출력전류가 상기 설정전류 이상으로 감지된 경우, 상기 설정전류 크기만큼 펄스 폭이 제어되도록 하는 PWM 제어신호를 상기 방전 스위치부로 전송하는 제어부를 포함한다.

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Номер записи: 5
28-12-2016 дата публикации

MMT APPARATUS AND METHOD FOR SUPPORTING DE-CAPSULATION BUFFER MANAGEMENT

Номер: KR1020160150065A
Автор: KIM, CHANG KI, SEO, KWANG DEOK
Принадлежит:

The present invention discloses an MMT apparatus and method for supporting de-capsulation buffer management. According to one embodiment of the present invention, provided is a method of managing a de-capsulation buffer according to a hypothetical receiver buffer model (HRBM) in an MMT system, comprising the following steps of: allowing an MMT transmission entity to generate a plurality of MMT protocol packets by performing encapsulation on one or more assets; allowing the MMT transmission entity to generate buffer management information for each asset, which is individually applied to the one or more assets in order to manage a de-capsulation buffer; and allowing the MMT transmission entity to transmit the MMT protocol packets and buffer management information for each asset to an MMT reception entity. COPYRIGHT KIPO 2017 (51) Compressed media data (52) Generating an MMT packet through an encapsulation process with respect to various assets (53) Generating de-capsulation buffer management ...

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Номер записи: 6
31-10-2013 дата публикации

METHOD AND APPARATUS FOR TRANSMITTING MMT PACKET FOR NETWORK-ADAPTIVE MULTI-LAYER VIDEO TRANSMISSION

Номер: WO2013162292A1
Автор: KIM, Chang Ki, KIM, Tae Jung, YOO, Jeong Ju, HONG, Jin Woo, SEO, Kwang Deok
Принадлежит:

The present invention provides a method for transmitting a MPEG media transport (MMT) packet using structure of an MMT packet having extension information necessary for adaptively transmitting a multi-layer video such as an SVC to network environment in a media transport service based on a MMT system and the extension information, and an apparatus therefor.

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Номер записи: 7
28-03-2013 дата публикации

METHOD AND APPARATUS FOR TRANSMITTING MEDIA DATA FOR MMT SYSTEM, AND APPARATUS AND METHOD FOR RECEIVING MEDIA DATA

Номер: WO2013042999A1
Автор: YOO, Jeong Ju, KIM, Chang Ki, KIM, Tae Jung, JEONG, Young Ho, HONG, Jin Woo, SEO, Kwang Deok, LEE, Hong-Rae
Принадлежит:

Provided are a method and apparatus for transmitting and receiving media data, which can provide D-layer timing information, which is transmitted from a media transmission service based on an MMT system and required for timely synchronization playout time of the media and media. The apparatus for transmitting the media data comprises a packetizer for generating a delivery layer packet (D-layer packet), which packetizes encapsulation layer data (E-layer data) to include timing information, wherein the timing information comprises sampling time information and transmission process delay information.

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Номер записи: 8
21-01-2016 дата публикации

BATTERY MANAGEMENT SYSTEM WITH SELF-POWER CONSUMPTION CUTOFF FUNCTION

Номер: KR1020160007869A
Автор: SEO, KWANG DUK, CHOI, WON HO
Принадлежит:

A battery management system is disclosed. According to an embodiment of the present invention, provided is the battery management system with a self-power consumption cutoff function comprising: a first circuit unit which receives power from a battery, monitors the state of the battery, and outputs a second control signal in a low level state when detecting over-discharge; and a second circuit unit which cuts off power connection to the battery to prevent the over-discharge of the battery when the second control signal in the low level state is transmitted from the first circuit unit. COPYRIGHT KIPO 2016 (AA) Battery management system (BMS) (BB) ON/OFF by external operation (CC) Battery (DD) Main circuit ...

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Номер записи: 9
26-04-2012 дата публикации

STREAMING SERVICE TRANSMITTING/RECEIVING DEVICE AND METHOD

Номер: WO2012053834A3
Автор: JUNG, Soon Heung, SEO, Kwang Deok, LEE, Jin Young, BAE, Seong Jun, SHIN, Sang Woo, THANG, Truong Cong, PARK, Sang Taick, RYU, Won
Принадлежит:

A streaming service transmitting and receiving device and method are provided. An arrival interval jitter is an arrival delay time variation between TCP packets, which arrive at a device receiving a streaming service. The device receiving a streaming service determines a de-jitter buffering time to absorb a network jitter before TS packets in a TCP packet are inputted into a T-STD buffer model. An initial playback delay time of the device receiving a streaming service is determined by the de-jitter buffering time.

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Номер записи: 10
30-04-2015 дата публикации

APPARATUS AND METHOD FOR CONFIGURING MMT PAYLOAD HEADER

Номер: WO2015060586A1
Автор: KIM, Chang-Ki, YOO, Jeong-Ju, HONG, Jin-Woo, SEO, Kwang-Deok, LEE, Hong-Rae
Принадлежит:

Disclosed are an apparatus and a method for configuring an MMT payload header. The apparatus for configuring an MMT payload header, according to one embodiment, extracts a sequence number of a media processing unit (MPU) comprising one or a plurality of media fragment units, which are to be aggregated into one payload and mapped, and displays the extracted sequence number of the MPU on the MMT payload header. Specifically, the apparatus for configuring an MMT payload header displays the sequence number commonly associated with a plurality of MFUs on the header only once, when the plurality of MFUs in one payload are aggregated in the one payload and mapped.

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Номер записи: 11
30-04-2015 дата публикации

MMT OVERHEAD-REDUCING PAYLOADING APPARATUS AND METHOD

Номер: WO2015060560A1
Автор: KIM, Chang-Ki, YOO, Jeong-Ju, HONG, Jin-Woo, SEO, Kwang-Deok, LEE, Hong-Rae
Принадлежит:

The present invention relates to an MMT overhead-reducing payloading apparatus comprising: a type categorizing unit for categorizing the type of inputted media processing unit (MPU) fragments; a size comparison unit for comparing the size of an aggregated packet and the size of a maximum transmission unit (MTU), when the categorized MPU fragment type and another MPU fragment of a different type are aggregated; a payload generation unit for generating an MMT payload by aggregating two or more different types of MPU fragments, according to the result of size comparison; and a header generation unit for adding a header to the generated payload.

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Номер записи: 12
13-06-2016 дата публикации

BATTERY MANAGEMENT SYSTEM WITH SELF-CONSUMPTION POWER DOWN CAPABILITY

Номер: KR0101629172B1
Автор: 서광덕, 최원호
Принадлежит: 파워소프트 주식회사

... 배터리 관리 시스템이 개시된다. 본 발명의 일 실시예에 의하면, 배터리로부터 전원을 공급받아 상기 배터리의 상태를 모니터링하면서 과방전이 감지되면, 로우레벨 상태의 제2 제어신호를 출력하는 제1 회로부; 및 상기 제1 회로부로부터 로우레벨 상태의 상기 제2 제어신호가 전달되면, 상기 배터리와의 전원 연결을 차단하여 상기 배터리의 과방전을 방지하는 제2 회로부;를 포함하는, 자체소모전력 차단 기능이 구비된 배터리 관리 시스템이 제공된다.

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Номер записи: 13
28-03-2018 дата публикации

APPARATUS AND METHOD FOR GENERATING SWITCHING PULSE OF VIENNA RECTIFIER USING TRIANGLE-WAVE COMPARISON PWM SCHEME

Номер: KR101842705B1
Автор: SEO KWANG DUK, YUN BONG YOUNG, JI JUN KEUN
Принадлежит: POWERSOFT INC.

An apparatus for generating a switching pulse of a Vienna rectifier using a triangle-wave comparison PWM scheme according to the present invention comprises: a phase command voltage generation unit which generates a voltage given to modulate a pulse width of each phase voltage; a neutral point voltage generation unit which generates a neutral point voltage; a terminal voltage calculation unit which generates a terminal voltage by summing a command voltage generated by the phase command voltage generation unit and the neutral point voltage generated by the neutral point voltage generation unit; a normalization means unit which outputs a normalized terminal voltage on the basis of the terminal voltage outputted from the terminal voltage calculation unit; a carrier wave generation unit which generates a carrier wave; an offset voltage generation unit which generates an offset voltage; a comparison terminal voltage output unit which sums and outputs the offset voltage generated by the offset ...

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Номер записи: 14
09-05-2018 дата публикации

HYBRID MULTILEVEL HIGH-VOLTAGE AND HIGH-CAPACITY RECTIFIER, AND UNINTERRUPTIBLE POWER SUPPLY USING SAME

Номер: KR1020180046807A
Автор: SEO, KWANG DUK, YOO, JIN WAN
Принадлежит:

The present invention relates to a hybrid multilevel high-voltage and high-capacity rectifier, and an uninterruptible power supply using the same. The high-voltage and high-capacity rectifier comprises: a main converter converting a three-phase AC voltage from a system into a DC voltage and outputting a main voltage; and an auxiliary converter converting the three-phase AC voltage from the system into a DC voltage and outputting an auxiliary voltage, wherein the total voltage of the main voltage and the auxiliary voltage is an output voltage. The main voltage is fixed, and the auxiliary voltage is varied, such that a high DC voltage, from which the ripple of the output voltage is removed, is output. A plurality of main converters are connected, such that the total voltage of the main voltages output by the main converters and the auxiliary voltage output by the auxiliary converter is an output voltage. The hybrid multilevel high-voltage and high-capacity rectifier can be used as an uninterruptible ...

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Номер записи: 15
05-10-2016 дата публикации

ACTIVE CURRENT CONTROL SYSTEM FOR BATTERY PROTECTION

Номер: KR1020160114408A
Автор: SEO, KWANG DUK, YOON, BONG YOUNG, CHOI, WON HO
Принадлежит:

The present invention relates to an active current control system for battery protection. The active current control system for battery protection includes: a discharge switch unit turned on when a battery is discharged, controlling a duty ratio of the discharge switch according to a pulse width modulation (PWM) control signal to restrict an output current of the battery to a preset current; and a control unit transmitting the PWM control signal, for controlling a pulse width as much as the size of the set current, to the discharge switch unit when it is detected that the output current of the battery is greater than or equal to the set current. COPYRIGHT KIPO 2016 (400) Control unit ...

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Номер записи: 16
13-01-2016 дата публикации

MMT TRANSMITTING/RECEIVING APPARATUS FOR ERROR HIDING AND ERROR HIDING METHOD THEREOF

Номер: KR1020160004960A
Автор: KIM, CHANG KI, YOO, JEONG JU, HONG, JIN WOO, SEO, KWANG DEOK, JUNG, TAE JUN
Принадлежит:

Disclosed are an MPEG media transport (MMT) transmitting/receiving apparatus for error hiding, and an error hiding method thereof. According to an embodiment of the present invention, the error hiding method in an MMT transmitting entity comprises the following steps: determining an optimized error hiding algorithm as a media sample unit on data included in a media processing unit (MPU) to transmit; and generating an error hiding mode signaling message including error hiding mode information of the sample unit which indicates the determined error hiding algorithm, and transmitting the error hiding mode signaling message to an MMT receiving entity. COPYRIGHT KIPO 2016 ...

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Номер записи: 17
19-01-2012 дата публикации

APPARATUS AND METHOD FOR TRANSCEIVING A STREAMING SERVICE

Номер: KR2012008792A2
Автор: JUNG, Soon Heung, SEO, Kwang Deok, LEE, Jin Young, BAE, Seong Jun, KANG, Jung Won, SHIM, Sang Woo, THANG, Truong Cong, PARK, Sang Taick, RYU, Won
Принадлежит:

The present invention relates to an apparatus and method for transmitting and receiving a streaming service. The apparatus and method for transmitting and receiving a streaming service involve using a lightweight multimedia file suitable for HTTP streaming. An ISO file that is created by a non-interleaved storage method unsuitable for an HTTP streaming service can be converted, using an HTTP hint track, into a file of an interleaved storage method suitable for an HTTP streaming service. The ISO file may contain multimedia tracks for supporting multiple bit rates and resolutions. Chuck data of media tracks, which provide multiple multimedia qualities, can be efficiently acquired, and the acquired chuck data is stored in an interleaved method, thereby generating a lightweight ISO file suitable for an HTTP streaming service.

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Номер записи: 18
28-03-2013 дата публикации

APPARATUS AND METHOD FOR TRANSMITTING MEDIA DATA FOR MMT SYSTEM, AND APPARATUS AND METHOD FOR RECEIVING MEDIA DATA

Номер: WO2013042998A1
Автор: YOO, Jeong Ju, KIM, Chang Ki, KIM, Tae Jung, JEONG, Young Ho, HONG, Jin Woo, SEO, Kwang Deok, LEE, Hong-Rae
Принадлежит:

The present invention relates to E-layer timing information for an MPEG media transport (MMT) system. An E-layer timing model of the MMT system should efficiently provide basic timing information required for synchronizing media playout time and media. Also, data which is generated from the E-layer of the MMT system should be deliverable by an RTP, which is an existing application-layer transport protocol. Therefore, the present invention designs the timing information that can be applied to the E-layer timing model of the MMT while maintaining compatibility with existing MPEG media transport technology.

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Номер записи: 19
17-07-2015 дата публикации

PACKET RETRANSMISSION METHOD AND APPARATUS, AND RETRANSMISSION REQUEST METHOD AND APPARATUS IN MMT SYSTEM

Номер: KR1020150083428A
Автор: KIM, CHANG KI, SEO, KWANG DEOK, YOO, JEONG JU, HONG, JIN WOO
Принадлежит:

Disclosed is a method of an MMT packet transmission device for retransmitting a lost packet. The method includes the steps of: generating a media processing unit (MPU) based on a media fragment unit (MFU) and generates an MMT asset by encapsulating the MPU; generating an MMT packet based on the MPU included in the generated MMT asset; transmitting the generated MMT packet; and adding a delay-constrained-ARO-flag, which indicates whether the MMT packet transmission device supports a delay automatic repeat request (ARQ) function, to a signaling message related to retransmission of the transmitted MMT packet. COPYRIGHT KIPO 2015 (510) Packet transmission device (520) Packet reception device ...

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Номер записи: 20
04-05-2015 дата публикации

APPARATUS AND METHOD FOR CONFIGURING MMT PAYLOAD HEADER

Номер: KR1020150047092A
Автор: KIM, CHANG KI, YOO, JEONG JU, HONG, JIN WOO, SEO, KWANG DEOK, LEE, HONG RAE
Принадлежит:

Disclosed are an apparatus and a method for configuring an MPEG media transport (MMT) payload header. The apparatus for configuring an MMT payload header, according to one embodiment of the present invention, extracts a sequence number of a media processing unit (MPU) comprising one or a plurality of media fragment units, which are to be aggregated into one payload and mapped, and displays the extracted sequence number of the MPU on the MMT payload header. Specifically, the apparatus for configuring an MMT payload header displays the sequence number commonly associated with a plurality of MFUs on the header only once, when the MFUs are aggregated in one payload and mapped. COPYRIGHT KIPO 2015 ...

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Номер записи: 21
17-01-2013 дата публикации

APPARATUS AND METHOD FOR TRANSMITTING PACKET AND APPARATUS AND METHOD FOR RECEIVING PACKET IN MMT SYSTEM

Номер: WO2013009132A2
Автор: LEE, Jin Young, SEO, Kwang Deok, YUN, Kug Jin, CHEONG, Won Sik, KIM, Hyun Jung, HUR, Nam Ho
Принадлежит:

The present invention discloses an apparatus and a method for transmitting a packet and an apparatus and a method for receiving a packet in an MPEG media transport (MMT) system. The apparatus for transmitting the packet transmits the packet from the MMT system, and comprises an MMT packetizing portion for generating an MMT packet based on an inputted presentation unit, wherein the MMT packetizing portion generates the MMT packet by comprising at least one of presentation time stamp (PTS) information, which is timing information that indicates a presentation time of the presentation unit to a header of an E layer, information for measuring a network jitter to a header of a D layer, or information for media synchronization.

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Номер записи: 22
05-12-2018 дата публикации

SERIES-PARALLEL CONVERTING CIRCUIT AND POWER SUPPLY DEVICE COMPRISING SAME

Номер: KR1020180129362A
Автор: SEO KWANG DUK, YUN BONG YOUNG
Принадлежит:

A serial-parallel converting circuit according to an embodiment of the present invention includes a switch which is turned on and off in accordance with a control signal, and an automatic switching circuit which automatically connects the output of a first power supply device and the output of a second power supply device in series or in parallel in conjunction with the on/off of the switch. Rapid and noiseless control can be performed. COPYRIGHT KIPO 2019 (AA) Load ...

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Номер записи: 23
27-06-2013 дата публикации

HUMIDIFYING HEAT EXCHANGER FOR FUEL CELL

Номер: WO2013095025A1
Автор: SEO, Kwang Duk, LEE, Jea Jun, HWANG, Jung Tae, SEONG, Hoo Gi
Принадлежит:

A humidifying heat exchanger for a fuel cell according to the present invention comprises: a body portion having a gas inlet and a gas outlet which are respectively formed at one end and the other end in a longitudinal direction; a first tube which is provided in the inside of the body portion and is spirally wound along the longitudinal direction of the body portion; a second tube which is provided in the inside of the body portion, covers the first tube on the outside thereof, and is spirally wound along the longitudinal direction of the body portion; a supply unit which is provided at the gas outlet and supplies the mixture of fuel and water to the first tube and the second tube; and a discharge unit which is provided at the gas inlet and discharges the mixture from the first tube and the second tube.

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Номер записи: 24
16-01-2014 дата публикации

METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING PACKETS IN HYBRID TRANSMISSION SERVICE OF MMT

Номер: WO2014010830A1
Автор: KIM, Chang Ki, YOO, Jeong Ju, HONG, Jin Woo, SEO, Kwang Deok
Принадлежит:

The present invention relates to an apparatus for transmitting packets in an MPEG Media Transport (MMT) system, including: an MMT packetizing unit recording standard time information related to a media access unit for providing synchronization of the media access unit and generating MMT packets; and a transmission unit transmitting the generated MMT packets to the recipient side. Accordingly, synchronization between different media can be provided in a hybrid transmission environment where media streams belonging to one program are transmitted from different servers.

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Номер записи: 25
17-01-2013 дата публикации

APPARATUS AND METHOD FOR TRANSMITTING PACKET AND APPARATUS AND METHOD FOR RECEIVING PACKET IN MMT SYSTEM

Номер: WO2013009131A3
Автор: LEE, Jin Young, SEO, Kwang Deok, YUN, Kug Jin, CHEONG, Won Sik, HUR, Nam Ho
Принадлежит:

The present invention discloses an apparatus and a method for transmitting a packet and an apparatus and a method for receiving a packet, based on a timing model of an MPEG media transport (MMT) system, which is integrated by considering the advantages of a timing model in an MPEG-2 system and an RTP timing model. The apparatus for transmitting the packet transmits the packet from the MMT system, and comprises: a video stream that is encoded based on an input picture; and an MMT packetizing portion for generating the MMT packet by packetizing an audio stream that corresponds to the video stream, wherein the MMT packetizing portion generates the MMT packet by including synchronization information, which is generated based on a system time clock (STC) that is a master program clock for a video and audio encoder, and an MMT buffering delay. As a result, synchronization of various media sources, measurement of a packet arrival jitter, as well as STC clock locking of the apparatus for transmitting ...

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Номер записи: 26
01-08-2013 дата публикации

METHOD FOR ESTIMATING NETWORK JITTER IN APPARATUS FOR TRANSMITTING CODED MEDIA DATA

Номер: WO2013112027A1
Автор: KIM, Chang Ki, KIM, Tae Jung, YOO, Jeong Ju, JEONG, Young Ho, HONG, Jin Woo, SEO, Kwang Deok
Принадлежит:

The present invention relates to a method for estimating network jitter, which has the effect of more precisely estimating network jitter by using time information corresponding to a transmission time, which is transmitted from a transport layer in a transmitting end to a receiving end.

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Номер записи: 27
04-05-2015 дата публикации

APPARATUS AND METHOD FOR MANAGING MMT BUFFER MODEL USING RECEPTION QUALITY FEEDBACK MESSAGE

Номер: KR1020150047083A
Автор: KIM, CHANG KI, YOO, JEONG JU, HONG, JIN WOO, SEO, KWANG DEOK, JUNG, TAE JUN
Принадлежит:

The present invention relates to a method for managing an MMT buffer model using a reception quality feedback (RQF) message from an MMT reception entity, comprising the steps of: receiving, from an MMT transmission entity, a measurement configuration (MC) message; measuring maximum transmission delay and minimum transmission delay, according to a request by the MC message that is received; renewing an RQF message including the maximum transmission delay and minimum transmission delay that have been measured; and transmitting the renewed RQF message to the MMT transmission entity. COPYRIGHT KIPO 2015 (10) MMT transmission entity (20) MMT reception entity (S210) HRBM operation (S220) MC message transmission (S230) Maximum transmission delay and minimum transmission delay measurement (S240) RQF message transmission (S250) Buffer control information calculation (S260) HRBM message transmission (S270) Buffer control ...

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Номер записи: 28
04-05-2015 дата публикации

MMT OVERHEAD-REDUCING PAYLOADING APPARATUS AND METHOD

Номер: KR1020150047081A
Автор: KIM, CHANG KI, YOO, JEONG JU, HONG, JIN WOO, SEO, KWANG DEOK, LEE, HONG RAE
Принадлежит:

The present invention relates to an MMT overhead-reducing payloading apparatus comprising: a type categorizing unit for categorizing the type of inputted media processing unit (MPU) fragments; a size comparison unit for comparing the size of an aggregated packet with the size of a maximum transmission unit (MTU), when the categorized MPU fragment type and another MPU fragment of a different type are aggregated; a payload generation unit for generating an MMT payload by aggregating two or more different types of MPU fragments, according to the result of size comparison; and a header generation unit for adding a header to the generated payload. COPYRIGHT KIPO 2015 ...

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Номер записи: 29
17-01-2013 дата публикации

APPARATUS AND METHOD FOR TRANSMITTING PACKET AND APPARATUS AND METHOD FOR RECEIVING PACKET IN MMT SYSTEM

Номер: WO2013009132A3
Автор: LEE, Jin Young, SEO, Kwang Deok, YUN, Kug Jin, CHEONG, Won Sik, KIM, Hyun Jung, HUR, Nam Ho
Принадлежит:

The present invention discloses an apparatus and a method for transmitting a packet and an apparatus and a method for receiving a packet in an MPEG media transport (MMT) system. The apparatus for transmitting the packet transmits the packet from the MMT system, and comprises an MMT packetizing portion for generating an MMT packet based on an inputted presentation unit, wherein the MMT packetizing portion generates the MMT packet by comprising at least one of presentation time stamp (PTS) information, which is timing information that indicates a presentation time of the presentation unit to a header of an E layer, information for measuring a network jitter to a header of a D layer, or information for media synchronization.

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Номер записи: 30
27-11-2018 дата публикации

ARC REDUCING APPARATUS AND PLASMA POWER SUPPLY APPARATUS HAVING SAME

Номер: KR1020180126189A
Автор: SEO KWANG DUK, YUN BONG YOUNG
Принадлежит:

According to an embodiment of the present invention, an arc reducing apparatus capable of increasing the efficiency of the whole system comprises: a blocking switch provided between a load and a plasma power supply apparatus having a smoothing filter in an output terminal and turned off when an arc occurs in the load; and an arc reducing circuit for temporarily storing energy stored in the smoothing filter when the blocking switch is turned off and regenerating the temporarily stored energy with the smoothing filter after all of the temporarily stored energy is extinct in the smoothing filter. COPYRIGHT KIPO 2019 (130) Voltage sensing unit (140) Control unit (AA) Load ...

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Номер записи: 31
17-01-2013 дата публикации

APPARATUS AND METHOD FOR TRANSMITTING PACKET AND APPARATUS AND METHOD FOR RECEIVING PACKET IN MMT SYSTEM

Номер: WO2013009131A2
Автор: LEE, Jin Young, SEO, Kwang Deok, YUN, Kug Jin, CHEONG, Won Sik, HUR, Nam Ho
Принадлежит:

The present invention discloses an apparatus and a method for transmitting a packet and an apparatus and a method for receiving a packet, based on a timing model of an MPEG media transport (MMT) system, which is integrated by considering the advantages of a timing model in an MPEG-2 system and an RTP timing model. The apparatus for transmitting the packet transmits the packet from the MMT system, and comprises: a video stream that is encoded based on an input picture; and an MMT packetizing portion for generating the MMT packet by packetizing an audio stream that corresponds to the video stream, wherein the MMT packetizing portion generates the MMT packet by including synchronization information, which is generated based on a system time clock (STC) that is a master program clock for a video and audio encoder, and an MMT buffering delay. As a result, synchronization of various media sources, measurement of a packet arrival jitter, as well as STC clock locking of the apparatus for transmitting ...

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Номер записи: 32
19-01-2012 дата публикации

APPARATUS AND METHOD FOR TRANSCEIVING A STREAMING SERVICE

Номер: WO2012008792A3
Автор: JUNG, Soon Heung, SEO, Kwang Deok, LEE, Jin Young, BAE, Seong Jun, KANG, Jung Won, SHIM, Sang Woo, THANG, Truong Cong, PARK, Sang Taick, RYU, Won
Принадлежит:

The present invention relates to an apparatus and method for transmitting and receiving a streaming service. The apparatus and method for transmitting and receiving a streaming service involve using a lightweight multimedia file suitable for HTTP streaming. An ISO file that is created by a non-interleaved storage method unsuitable for an HTTP streaming service can be converted, using an HTTP hint track, into a file of an interleaved storage method suitable for an HTTP streaming service. The ISO file may contain multimedia tracks for supporting multiple bit rates and resolutions. Chuck data of media tracks, which provide multiple multimedia qualities, can be efficiently acquired, and the acquired chuck data is stored in an interleaved method, thereby generating a lightweight ISO file suitable for an HTTP streaming service.

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Номер записи: 33
29-11-2018 дата публикации

ＭＭＴ 복합 전달 서비스에서 ＭＭＴ 패킷 스트림 동기화를 위한 타이밍 정보 제공 방법 및 ＭＭＴ 패킷 스트림 동기화 방법

Номер: KR0101920051B1
Автор: 김성혜, 서광덕, 정태준, 이창규, 강신각
Принадлежит: 한국전자통신연구원

... 복합 전달 서비스(Hybrid delivery service) 환경하에서 서로 다른 제1 서버 및 제2 서버에서 각각 전달되는 패킷 스트림간의 동기화를 위한 타이밍 정보 제공 방법이 개시된다. 제1 서버는 제1 미디어 개체를 전송하고 제2 서버는 제2 미디어 개체를 전송한다. 상기 제2 서버에서 상기 제2 미디어 개체를 포함한 제2 패킷과 상기 제1 미디어 개체를 포함한 제1 패킷간의 동기화를 위한 타이밍 정보를 생성한다. 상기 제2 서버에서 상기 타이밍 정보 및 상기 제2 미디어 개체를 포함한 제2 패킷을 클라이언트로 제공한다.

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Номер записи: 34
05-12-2018 дата публикации

PLASMA POWER SUPPLY DEVICE CAPABLE OF PERFORMING BROADBAND OPERATION

Номер: KR1020180129363A
Автор: SEO KWANG DUK, YUN BONG YOUNG
Принадлежит:

According to an embodiment of the present invention, a plasma power supply device capable of performing a broadband operation comprises: a boosting circuit for boosting AC power to output a first DC link voltage and a second DC link voltage; a first high frequency inverter for converting the first DC link voltage into AC power; a first transformer for converting the AC power converted in the first high frequency inverter into AC power according to a specific winding ratio; a first rectifier for rectifying the AC power converted in the first transformer into DC power; a first module having a first smoothing filter for smoothing the output of the first rectifier; a second high frequency inverter for converting the second DC link voltage into AC power; a second transformer for converting the AC power converted in the second high frequency inverter into AC power according to a specific winding ratio; a second rectifier for rectifying the AC power converted in the second transformer into DC ...

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Номер записи: 35
16-07-2015 дата публикации

METHOD AND DEVICE FOR RETRANSMITTING PACKET OF MMT SERVICE, AND RETRANSMISSION REQUEST METHOD AND DEVICE

Номер: WO2015105311A1
Автор: KIM, Chang Ki, SEO, Kwang Deok, YOO, Jeong Ju, HONG, Jin Woo
Принадлежит:

The present invention relates to a method for retransmitting a lost packet by an MMT packet transmission device. The method comprises the steps of: generating a media processing unit (MPU) on the basis of a media fragment unit (MFU) and generating an MMT asset by encapsulating the MPU; generating an MMT packet on the basis of the MPU included in the generated MMT asset; and transmitting the generated MMT packet. The method further comprises a step of including a delay constrained automatic repeat request (ARQ) flag indicating whether the delay constrained ARQ function is supported by the MMT packet transmission device, in a signaling message associated with the retransmission of the transmitted MMT packet.

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Номер записи: 36