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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 6. Отображено 6.
17-07-2001 дата публикации

System and method for warning of dangerous driving conditions

Номер: US0006263282B1

A dangerous driving conditions warning system for a vehicle such as an automobile is described. The warning system captures signals from two or more devices in an automobile, such as speedometer, distance measuring device, and airbag, and conveys the signals to a decision circuit which determines whether a dangerous driving condition exists and outputs an activation signal upon detecting a dangerous condition. The activation signal is sent to and activates an indicator such as a warning light or loud audible warning. The warning indicator alerts a trailing vehicle and other vehicles near the vehicle equipped with the warning system of the existence of one of various conditions warranting caution, a reduction in speed, or a veering or turn.

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10-09-1997 дата публикации

Current copiers with improved accuracy

Номер: EP0794535A2
Принадлежит: AT&T Corp, AT&T IPM Corp

A current copier (10) is disclosed having a reduced transconductance at the output (18) to reduce the corresponding amount of deviation of the current sample. The disclosed current copier may be implemented on an integrated circuit and includes a residue circuit (12) for receiving an input current (I IN ) at an input node (16) during a first operating cycle, for generating an estimate current (I EST ) corresponding to the input current, and for generating a residue current (IRES) from the input current and the estimate current; and a first current copier (14) for storing the residue current during the first operating cycle, and for generating an output current (at 18) from the stored residue current during a second operating cycle.

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24-12-1999 дата публикации

Amplifier and method for amplifying first pair of differential signals

Номер: JPH11355065A
Принадлежит: Lucent Technologies Inc

(57)【要約】 【課題】 製造コストの大幅な増加なしに、合成トラン スコンダクタンスを実質的に一定に維持することが可能 な作動増幅器を提供する。 【解決手段】 差動増幅器(110)は、同等の導電型 の主差動トランジスタ対(110A、112A)および これに対して相補的モードで動作する副差動トランジス タ対(110B、112B)を含む。モニタリング回路 は、主差動トランジスタ対から負荷(126)への電流 を測定し、入力差動信号のコモンモード振幅が変化する とき、負荷への総電流を実質的に一定に維持するため に、副差動トランジスタ対から負荷への電流を変化させ る。これは、差動増幅器の有効なダイナミックレンジを 増大させる役目を果たす。

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01-02-2000 дата публикации

Low voltage sample and hold circuits

Номер: US6020769A
Принадлежит: Lucent Technologies Inc

A very low voltage sampling circuit which is capable of a full ranging output when powered with a very low voltage, e.g., of about 1 volt. A pre-charge circuit is combined with a sample and hold circuit to avoid the need for low threshold switching devices in the sampling circuit, thus avoiding output droop due to the increased leakage of low threshold devices. The pre-charge circuit is placed between the sample and hold circuit and an output of the sampling circuit to `boost` the voltage level of the output of the sample and hold circuit to above a predetermined threshold voltage level. The pre-charge circuit includes an output voltage boost capacitor which is charged before the hold cycle of the sampling circuit. The negative node of the output voltage boost capacitor is charged to a reference voltage based on a range of correction for the output voltage, and the positive node is charged approximately to a level of the input signal itself.

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17-05-2000 дата публикации

Low voltage sample and hold circuits

Номер: EP0920031A3
Принадлежит: Lucent Technologies Inc

A sampling circuit which is capable of a full ranging output when powered with very low voltage supplies, e.g., of about 1 volt, includes a current copier function added to a sample and hold circuit to avoid the need for low threshold switching devices in the sampling circuit, thus avoiding output droop due to the increased leakage of low threshold devices. A pre-charge circuit (100) is placed between the sample and hold circuit (0A3, M1,C H ) and a current storage transistor (M3) to 'boost' the voltage level of the output of the sample and hold circuit above the threshold voltage of the current storage transistor. The pre-charge circuit includes an output voltage boost capacitor (C S ) which is charged before the hold cycle of the sampling circuit. The level of the voltage charged onto the output voltage boost capacitor is based on the threshold voltage of the current storage transistor.

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08-10-1999 дата публикации

低電圧サンプル・ホールド回路

Номер: JPH11273390A
Принадлежит: Lucent Technologies Inc

(57)【要約】 【課題】 本発明は、例えば、約1ボルトの非常に低い 電圧の電源で動作する時にフルレンジの出力が可能な非 常に低い電圧のサンプリング回路および方法を提供す る。 【解決手段】 サンプリング回路内の低いしきい値のス イッチングデバイスの必要性を回避するためにプリチャ ージ回路にはサンプル及びホールド回路が接続されてい る。これにより、低いしきい値のデバイスの漏れ増大に よる出力垂下が防止される。サンプル及びホールド回路 の出力の電圧レベルを所定のしきい値電圧レベルより上 に昇圧するためにプリチャージ回路がサンプル及びホー ルド回路とサンプリング回路の出力の間に置かれる。プ リチャージ回路は、サンプリング回路のホールドサイク ルの前に充電される、出力電圧昇圧コンデンサを含んで いる。出力電圧昇圧コンデンサの陰極ノードは基準電圧 に充電され、陽極ノードは入力信号自体のレベルに略等 しく充電される。

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