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MODULATION STANDARD [8 records]

Record 1 2010-07-27

English

Subject field(s)
  • Telephones
  • Military Communications
  • Information Processing (Informatics)
  • Telegraphic Networks and Operations
CONT

The DRS TA-1035(A)/U Digital Non-secure Voice Telephone (DNVT) with digital data port is a four-wire telephone set which transmits and receives conditioned diphase-modulated digital data, digitized voice and digital loop signaling at 16 or 32 kbps. Loop signaling consists of sequences of cyclically permuted 8-bit control words, each word having minimal correlation with any other word. Loop signaling conforms to Tri-Tac Standards.

OBS

Once a call is established, the TA-1035(A)/U can alternate between voice and data modes. For voice communications, the DNVT uses continuously variable slope delta modulation encoding/decoding at 16 or 32 kbps. Extension network analog data interface is provided via the data port. For data communications, the TA-1035/U data adapter interfaces directly with standard Data Terminal Equipment(DE) such as the AN/UXC-7 tactical facsimile machine and AN/UGC-144 communications terminal. Data calls may be placed manually via keypad or automatically via extension dialing through the data port.

French

Domaine(s)
  • Téléphones
  • Transmissions militaires
  • Traitement de l'information (Informatique)
  • Réseaux et exploitation télégraphiques

Spanish

Save record 1

Record 2 2010-04-12

English

Subject field(s)
  • Acoustics (Physics)
  • Building Insulation and Acoustical Design
  • Audio Technology
DEF

[A unit] used to measure variations of modulation in a communication circuit... The unit is the decibel expressed relative to a reference level of 1 mW in 600 ohms, and standard volume indicators are calibrated in these units.

French

Domaine(s)
  • Acoustique (Physique)
  • Isolation et acoustique architecturale
  • Électroacoustique
DEF

Unité de volume sonore utilisée pour exprimer le résultat d'une mesure faite au moyen d'un vu-mètre. [Définition normalisée par l'AFNOR et reproduite avec son autorisation.]

OBS

unité de volume; VU : terme et abréviation normalisés par l'AFNOR.

Spanish

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Record 3 2005-12-15

English

Subject field(s)
  • Tomography
  • Radiotherapy
DEF

A novel treatment approach where the ring gantry irradiation geometry of a helical CT [computed tomography] scanner is combined with an intensity-modulated megavoltage x-ray fan beam.

CONT

Unlike standard radiotherapy, in which treatment is delivered through one or a few separate beams, helical tomotherapy delivers treatment with a rotating, intensity-modulated fan beam. The patient is translated through the ring of the gantry while the beam is rotated around, so that the treatment beam forms a helical shape in a similar manner to that of computed tomography(CT) scans. The ring gantry provides a stable platform to perform tomographic verification of both setup and delivered dose.... Because of the complete freedom of helical tomotherapy to deliver treatment from all angles around the patient and with intensity modulation and inverse treatment planning, it is possible to treat highly complex and irregular target volumes while giving a low radiation dose to surrounding normal structures.

French

Domaine(s)
  • Tomographie
  • Radiothérapie
CONT

Une nouvelle technique de tomothérapie est présentement développée et sera assurément une technique d'avenir en radiothérapie; c'est la tomothérapie hélicoïdale (Hi-Art). Cette dernière utilise un déplacement de table continu pendant que la tête accélératrice tourne autour du patient. L'accélérateur bouge en même temps que le collimateur multilames qui est contrôlé par ordinateur. Le MLC [Multi Leaf Collimator - collimateur multilames] est composé de deux séries de lames qui sont soit ouvertes ou fermées complètement pour créer l'intensité modulée (IMRT) [Intensity Modulated Radiation Therapy - Intensité modulée par radiothérapie].

OBS

tomothérapie hélicoïdale : terme retenu par le réseau Entraide Traduction Santé.

Spanish

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Record 4 2003-09-08

English

Subject field(s)
  • Telecommunications Transmission
DEF

A stream of all the digital data carrying one or more services within a single physical channel.

OBS

The J system modulation plan involved the first use of the 60-to-180 kHz 12-channel group band, which has become a Bell system and worldwide standard building block for multiplex equipment.

French

Domaine(s)
  • Transmission (Télécommunications)
DEF

Flux de toutes les données numériques véhiculant un ou plusieurs services sur un canal physique unique.

OBS

La commutation temporelle MIC [modulation par impulsions et codage] consiste à répartir les échantillons arrivant sur les multiplex entrants dans les voies convenables des multiplex sortants.

Spanish

Campo(s) temático(s)
  • Transmisión (Telecomunicaciones)
Save record 4

Record 5 2001-07-09

English

Subject field(s)
  • Telecommunications Transmission
  • Radio Broadcasting
  • Air Transport
DEF

The set of characteristics of an emission, designated by standard symbols, e. g. type of modulation of the main carrier, modulating signal, type of information to be transmitted and also, if appropriate, any additional signal characteristics.

Key term(s)
  • form of transmission

French

Domaine(s)
  • Transmission (Télécommunications)
  • Radiodiffusion
  • Transport aérien

Spanish

Campo(s) temático(s)
  • Transmisión (Telecomunicaciones)
  • Radiodifusión
  • Transporte aéreo
DEF

Conjunto de características de una emisión que se designan por medio de símbolos estándar. [...] por ejemplo, tipo de modulación de la portadora principal, señal moduladora, tipo de información que se va a transmitir, y también cualquier característica adicional de la señal, en su caso.

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Record 6 1996-08-19

English

Subject field(s)
  • Radiotelephony
CONT

Standard test modulation(voice) shall be a 1, 0 kHZ sinusoidal audio input signal having 1% of less total harmonic distortion...

French

Domaine(s)
  • Radiotéléphonie
CONT

La modulation normale d'essai (fréquences vocales) doit être un signal d'entrée audio sinusoïdal de 1,0 KHz dont la distorsion harmonique totale est de 1% ou moins [...]

Spanish

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Record 7 1996-04-15

English

Subject field(s)
  • Advanced Technology Weapons
  • Electronic Circuits Technology
  • Photoelectricity and Electron Optics
CONT

This type of system combines signal-to-noise levels typical of microchannel plate image tubes with the modulation transfer function performance of a diode tube design, and generates an electronic output compatible with standard video displays.

French

Domaine(s)
  • Armes de haute technicité
  • Technologie des circuits électroniques
  • Photo-électricité et optique électronique
CONT

Ce montage donne en sortie un signal compatible avec les écrans vidéo standards.

Spanish

Save record 7

Record 8 1993-01-26

English

Subject field(s)
  • Motor Vehicles and Bicycles
  • Transmission Systems (Motor Vehicles and Bicycles)
CONT

The Probe's standard five-speed manual transaxle incorporates improvements to gear synchronization, clutch effort and modulation, shifter smoothness and efforts with reduced throw travel, and overall pattern spacing.

French

Domaine(s)
  • Véhicules automobiles et bicyclettes
  • Transmission (Véhicules automobiles et bicyclettes)

Spanish

Save record 8

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