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

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Применить Всего найдено 4. Отображено 4.
03-05-2007 дата публикации

Method and apparatus for detecting the presence of a terminal in a data session

Номер: US2007097995A1
Автор: KOTTILINGAL SUDEEP R, LING FAN, KOTTILINGAL SUDEEP R.
Принадлежит:

To detect the presence of at least one other terminal in a data session (e.g., an RTP session), terminal a generates a request to solicit a response from each terminal, forms an APP packet in RTCP for the request, encapsulates the APP packet in at least one IP packet, and sends the IP packet(s) to the other terminal(s). Terminal a then monitors for a response from each terminal to which the request is sent. Terminal a declares a terminal to be present in the data session if a response is received from that terminal. Terminal a may send one or more additional requests to each terminal from which a response is not received. Terminal a declares a terminal to be absent from the data session if a predetermined number of (e.g., two) requests have been sent to that terminal and a response is not received from the terminal.

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Номер записи: 1
07-07-2023 дата публикации

Method and apparatus for histogram-based and adaptive tone mapping using multiple frames

Номер: CN116406504A
Автор: LI MIN, IKEZYAN ILYA, KOTTILINGAL SUDEEP R, ANDANDAN GABOR
Принадлежит:

The present disclosure relates to methods and apparatus for video or frame processing, including devices, such as video or frame processors. In some aspects, a device may receive a video stream including a plurality of frames, each of the plurality of frames including luminance information. The apparatus may also perform histogram analysis on the luminance information for each of the plurality of frames. In addition, the apparatus may determine whether a difference between the luminance information and the current luminance distribution for each of the plurality of frames is greater than a perceptual threshold. The apparatus may also compute an updated tone mapping configuration based on the luminance information for the frame when the difference between the luminance information for the frame and the current luminance distribution is greater than a perceptual threshold.

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Номер записи: 2
01-03-2007 дата публикации

Wireless VoIP/VIP roaming to access point of different network type

Номер: US2007047516A1
Автор: KOTTILINGAL SUDEEP R, KOTTILINGAL SUDEEP R.
Принадлежит:

A mobile communication device (for example, a cellular telephone) has one air interface for wireless communication with wireless LAN and another air interface for cellular telephone communication with a cellular telephone network. Initially, the communication device is used to transmit VoIP packets of a media stream to a target communication device in a first session across one of the air interfaces. It is then desired to use the other air interface. A spawn SIP message is communicated to the target, which returns a spawn identifier. The communication device sets up a second session by sending a SIP INVITE containing the spawn identifier to the target across the other air interface. Both sessions are active VoIP sessions. The target uses the spawn identifier to associate the first and second sessions. The flow of VoIP packets for the media stream is then switched from the first session to the second session.

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Номер записи: 3
22-03-2007 дата публикации

Interleaving VoIP/VIP transmission in multiple sessions to increase quality of service in mobile devices having multiple interfaces

Номер: US2007064684A1
Автор: KOTTILINGAL SUDEEP R, KOTTILINGAL SUDEEP R.
Принадлежит:

A first mobile device has two air interfaces. The first mobile device uses its first interface to transmit VoIP/VIP packets to a second device in a first session. If a quality of service decreases, then the first device causes a second session to be set up where the second session uses the second air interface. Both the first and second air interfaces are then used to communicate packets of a single media stream from the first device to the second device. The packets are transmitted in the first and second sessions in interleaved fashion, where the ratio of packets communicated in one session versus the other per unit time is adjusted in accordance with a quality of service afforded by one session versus a quality of service afforded by the other session. The second device orders the data payloads of the packets, thereby reconstructing the single media stream.

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Номер записи: 4