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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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Применить Всего найдено 3. Отображено 3.
20-04-2017 дата публикации

METHOD OF ESTABLISHING WIRELESS DIRECT CONNECTION AND DEVICE UTILIZING SAME

Номер: WO2017063369A1
Автор: JIAN, Meixiang, ZHAO, Jiayu
Принадлежит:

The invention discloses a method of establishing a wireless direct connection. The method comprises: when a wireless direction connection mode is entered, obtaining, by a first terminal, a channel number corresponding to a channel having minimum interference in a present wireless network; generating, by the first terminal, according to the channel number, a pattern code to be scanned by a second terminal for obtaining the channel number; and upon receiving a direction connection request transmitted from the second terminal, establishing, by the first terminal, according to the channel number, a wireless direction connection to the second terminal. The invention also discloses a wireless direction connection device. The invention can be implemented to determine a channel number for performing a Miracast connection by a terminal by scanning a pattern code, increasing connection efficiency of a Miracast application.

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Номер записи: 1
29-06-2017 дата публикации

HDMI VERSION SWITCHING METHOD AND DISPLAY DEVICE

Номер: WO2017107388A1
Автор: ZHAO, Jiayu
Принадлежит:

Disclosed is an HDMI version switching method. The method comprises: a display device checks, after receiving a video signal inputted by an external input device by means of HDMI, whether the signal parameter of the video signal is consistent with the signal parameter in EDID information of the configured HDMI version; if the signal parameter of the video signal is inconsistent with the signal prameter in the EDID information of the configured HDMI version, the display device switches the HDMI version. Also disclosed is a display device. The detection of an abnormality of a video signal and HDMI version switching can be performed by the display device, and a user does not need to switch the HDMI version by means of a manual operation after finding abnormal picture display, thereby effectively improving user experience.

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Номер записи: 2
09-05-2023 дата публикации

Preparation method and preparation device of 7-dehydrocholesterol and vitamin D3

Номер: CN116082428A
Автор: MA RUIDA, DAI JIANKUN, ZHAO JIAYU, CAI YUSEN, HE JIANYANG
Принадлежит:

The invention belongs to the field of organic synthesis, and particularly relates to a preparation method and a preparation device of 7-dehydrocholesterol and vitamin D3. The preparation method of the 7-dehydrocholesterol comprises the following step: carrying out a hydrazone removal reaction on a 7-p-toluenesulfonylhydrazone-3-cholesterol acetate raw material in the presence of lithium amide and a cocatalyst, wherein the cocatalyst is an amine compound of which the same molecule contains two tertiary amino groups. According to the invention, the amine compound containing two tertiary amine groups in the same molecule is used as the cocatalyst, so that the yield and purity of 7-dehydrocholesterol can be effectively improved.

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Номер записи: 3