baber/WOPTO huggingface dataset:
Patent FR-2490110-A1 (FR)
Title: Vacuum cleaner for natural and synthetic fibre surfaces - has corona type electrode and counter-electrode immersed in air producing negative and positive ions
Inventor: DUBOIS JEAN-CLAUDE
IPC: A47L9/04
Filed: 1980-09-16
Abstract: The device is used for removing dust from natural or artificial fibre surfaces by vacuum suction and has a housing connected to a suction device. Wheels and a rotary brush are also provided. To neutralise any electrostatic charge on the dust or surface before and after brushing to facilitate dust pick-up, a source of positive and negative ions is provided in the housing. The source comprises a corona electrode bar (1) provided with a number of points (14) which project through a dielectric sleeve (21) covering the bar. The bar is surrounded by a cylindrical receptor electrode spaced from the bar and provided with holes (220) opposite the bar points. An alternating voltage below discharge level is applied across the electrodes to generate ions by a 'corona' effect, the bar electrode having a very small radius of curvature in cross-section. The device may be used for record cleaning.
Patent FR-2467649-A1 (FR)
Title: Procede et appareil pour le fraisage de pieces longues, notamment de vilebrequins ou analogues
Inventor: BLAIMSCHEIN GOTTFRIED
IPC: B23C3/06
Filed: 1980-10-03
Abstract: L'invention est relative à un procédé de fraisage de pièces longues. Selon le procédé, on soutient la pièce 3 pour l'usinage en maintenant sa flexion plastique causée par exemple par libération de contraintes internes de la matière en vertu d'une étape d'usinage précédente et par le soutien, on élimine simplement, au point de soutien, la flèche élastique de la pièce, déterminée empiriquement et/ou par calcul. Le procédé est applicable au fraisage des vilebrequins et arbres à cames.
Patent FR-2491416-A1 (FR)
Title: Actuator for trailer brake - has piston sliding in cylinder acted on by fluid pressure with opposing return springs
Inventor: THONNAT RENE
IPC: F16D65/54
Filed: 1980-10-06
Abstract: The actuator is used in a trailer brake circuit. It has a cylinder and axial piston with one end outside the cylinder which moves axially under fluid action. An output is associated axially with the piston and can move ahead of it with controlled return in response to a locking detector. The output consists of a bush with a ball cage, over part of it, and two opposing return springs. One of these is stronger than the other, the stronger sprinq working with the cage.
Patent FR-2492943-A1 (FR)
Title: Valve, esp. for anti-nuclear shelter - where valve closes automatically if pressure of outer atmos suddenly increases, so outer air cannot enter shelter
IPC: F16K17/00
Filed: 1980-10-28
Abstract: The valve is intended to connect or disconnect the outer atmos. from the atmos. inside a chamber or shelter. The valve consists of a long, elastomer membrane strip; and one long edge of the strip is clamped between the two long edges of two perforated plates located in a valve box. In the walls of the box are two diametrically-opposed holes, one communicating with the outer atmos., the other with the atmos. inside the shelter. Under normal conditions, the membrane is located in a central position between the two perforated plates so there is a min. drop of pressure inside the valve. But if the pressure of the outer atmos. increases, the membrane is forced against one plate so the outer atmos. cannot enter the shelter. Valve is simple, reliable, and inexpensive.
Patent FR-2483265-A1 (FR)
Title: Internal painting of pipe - uses high speed spiral air current containing drops of paint
Inventor: SINNO KIYONORI
IPC: B05B7/08
Filed: 1980-12-03
Abstract: The applicator coats the interior surface of a pipe or conduit etc. by paint in suspension in the air. A high-speed spiral current of air is caused to flow in the pipe, containing drops of the paint. The latter can be delivered to an ejector supplied by a compressor, the ejector nozzle forming fine paint droplets at sonic or supersonic speed, while a volute chamber has tangential air inlets. A throttle cone can be provided at the ejector outlet, to increase the air speed.
Patent FR-2473268-A1 (FR)
Title: Procede pour preparer un produit contenant un isolat de proteines vegetales et destine a remplacer le lait pour la confection de produits de boulangerie-patisserie
Inventor: CHO IUE CHUNG
IPC: A21D2/00
Filed: 1981-01-08
Abstract: Procédé pour préparer un produit contenant un isolat de protéines végétales et destiné à remplacer le lait pour la confection de produits de boulangerie-pâtisserie. On obtient ce produit de remplacement en formant une suspension contenant 94 à 48 % en poids (sec) de petit-lait et 6 à 52 % en poids sec d'un isolat de protéines végétales, en ajustant le pH entre 5,8 et 7,5 et en lui ajoutant de 0,1 à 2,0 % (du poids de la matière sèche) d'un cation alcalinoterreux. On chauffe la suspension à une température comprise entre 88 degrés et 210 degrés C assez longtemps pour insolubiliser partiellement les protéines, puis on refroidit et transforme la suspension en un produit sec ayant, pour la cuisson de produits de boulangerie-pâtisserie, des propriétés analogues à celles de la poudre de lait écrémé ou dégraissé.
Patent FR-2474909-A1 (FR)
Title: Solid metal recessed body prodn. method - forms grooves in recess entirely by shaping blank without machining
Inventor: LIEBERGELD RUDOLF
IPC: F16D3/224
Filed: 1981-02-05
Abstract: The method produces a recessed body of solid metal, particular steel or steel alloy, the recess being undercut with grooves running in the lengthwise direction. A blank is first produced with a recess to which the grooves are connected, and then shaped into the finished article, being for use as part of a constant- velocity universal joint. The diaer. of the recess in the blank at the middle is roughly equal to the maximum diameter of this recess in the finished article. The grooves in the blank are roughly of the same depth as those in the finished article, and are produced entirely by shaping without machining. While the open end of the blank is being reduced in diameter, a radial supporting outwards pressure is exerted at intervals on the recess wall round its lengthwise axis.
Patent FR-2501142-A1 (FR)
Inventor: CLARY ROGER
IPC: B62D59/04
Filed: 1981-03-04
Abstract: The invention relates to a device for the auxiliary drive of an axle of a trailer vehicle which is coupled to a motor vehicle, which device is formed by at least one hydraulic motor mounted on the axle and is connected to a supply pump and which has a device for controlling the power output to the engine by the pump when force is transmitted to the trailer vehicle by the motor vehicle. In the device according to the invention, the control device is formed by a sensor (7) for the value of the force at the level of a hitch (3) which outputs at the output a signal (S) which is proportional to this force and by a device for hydraulic distribution which is arranged between the pump (4) and the motor (6) and has at least one element (8) which is controlled by the signal (S) for branching off a variable portion (d2) of the flow rate (d) of the pump (4) in the direction of the reservoir, which portion (d2) is inversely proportional to the intensity of the signal (S).
Patent FR-2501023-A1 (FR)
IPC: B63B7/08
Filed: 1981-03-04
Abstract: The inflatable assembly with multiple uses particularly provided for open air life is characterized by an inflatable base element (1) with a plane body (7) and a protruding peripheral edge (12) associated with a covering element (2) with two slopes which may be completely inflated or embodied as an inflatable structure carrying an impervious fabric set in and welded on this frame, the covering element comprising thereon protruding inflatable rigidifying beadings (30). Application to the camping industry, more particularly itinerant camping, and water leisure.
Patent FR-2501464-A1 (FR)
Title: Animal drinking water supply system - has valve connected by flexible hose to nozzle in bottom of basin
IPC: A01K7/02
Filed: 1981-03-11
Abstract: The animal drinking-water supply system is particularly in the form of an automatic drinking fountain for pigs, having a basin movable downwards under the effect of the weight of water flowing in through a valve, and upwards again as this water is removed. The valve is open in the upper position of the basin and shut in the lower one. The basin (10) has a water inlet nozzle (15), to which the valve (11) is connected via a flexible hose (16), the nozzle being at the lowermost point in the basin. The rate of flow can be adjustable by the valve to suit a normal animal's rate of drinking.(DS).
Patent FR-2504110-A1 (FR)
Title: Metal silicate made for use in the prodn. of vitreous prods. - esp. lead-potassium silicate employed in mfg. glass, enamels or pigments
IPC: C01B33/20
Filed: 1981-04-08
Abstract: An aq. soln. of the salt (I) of a metal or alkaline earth is mixed with a specific amt. of an alkali silicate (II), which is pref. also in an aq. soln. Mixing is undertaken in the presence of a free acid, the max. amt. of the latter being equal to the stoichiometric quantity necessary to salify the alkali in cpd. (II) which has not been salified by the cations in cpd. (I). The silicate (II) pref. has a molar ratio of SiO2/alkali oxide of 2-4/1, producing a metal silicate with a molar ratio of SiO2/MO of 4-8/1, where M is the cation in cpd. (I). Cpd. (I) is pref. PbNO3. The metal silicate obtd. is pref. reacted with an alkali to obtain a mixed silicate, esp. lead-potassium silicate. The mfr. of a mixed silicate for use in the prodn. of a vitreous prod., esp. glass, enamels, pigments, or a substrate used in chromatography. The esp. pref. prod. is lead-potassium silicate with a molar ratio SiO2/PbO of 4-8/1 for use in glass mfr.
Patent FR-2480530-A1 (FR)
Title: Circuit de filtrage comportant un dispositif de transfert de charges
Inventor: SONEDA MITSUO
IPC: H03H15/02
Filed: 1981-04-10
Abstract: A.CIRCUIT DE FILTRAGE COMPORTANT UN DISPOSITIF DE TRANSFERT DE CHARGES. B.CIRCUIT DE FILTRAGE CARACTERISE EN CE QU'IL COMPREND UN PREMIER JEU C, C, ...C ET UN SECOND JEU C, ... C DE DISPOSITIFS D'ACCUMULATION DE CHARGES, TELS QUE DES CONDENSATEURS, CE PREMIER ET CE SECOND JEUX ALIMENTES RESPECTIVEMENT AVEC UN PREMIER SIGNAL D'HORLOGE 0 ET AVEC UN SECOND SIGNAL D'HORLOGE 0, UN PREMIER JEU Q, Q, ... A Q AINSI QU'UN SECOND JEU Q, ... A Q DE COMMUTATEURS ETANT PREVUS QUI SONT RESPECTIVEMENT ACTIONNES PAR LE PREMIER SIGNAL D'HORLOGE 0 ET PAR LE SECOND SIGNAL D'HORLOGE 0. C.L'INVENTION S'APPLIQUE NOTAMMENT AUX FILTRES TRANSVERSAUX RECURSIFS.
Patent FR-2480565-A1 (FR)
Title: Granules herbicides a liberation lente
Inventor: HAHN ALICE ULHEE
IPC: A01N25/26
Filed: 1981-04-16
Abstract: L'INVENTION CONCERNE DES GRANULES HERBICIDES A LIBERATION LENTE CONSTITUES DE GRANULES POREUX IMPREGNES D'UN HERBICIDE DE TYPE THIOCARBAMATE ET REVETUS D'UNE MATIERE CHOISIE PARMI LES GLYCERIDES DURCIS D'UN OU PLUSIEURS ACIDES ALIPHATIQUES INSATURES EN C-C ET LEUR COPOLYMERES AVEC LE MONO OU UN POLYCYCLOPENTADIENE; CES COMPOSITIONS SONT PARTICULIEREMENT UTILES POUR LUTTER CONTRE LES MAUVAISES HERBES DANS DE L'EAU OU DANS UN ENVIRONNEMENT A FORTE HUMIDITE. ELLE SE RAPPORTE A DES GRANULES HERBICIDES A LIBERATION LENTE.
Patent FR-2481132-A1 (FR)
Inventor: BALLY ALEXIS
IPC: A63C11/26
Filed: 1981-04-24
Abstract: The artificial foot (1) can be inserted into the ski boot (16) in such a way that its longitudinal part (2) presses on the sole (3) in the case both of the toe of the boot and of the heel. The artificial foot (1) can be fixed to the ski boot by means of a clamping bow (7), of which the strap (9) can be inserted under the heel part of the ski boot. The tightening lever (23) permits the clamping bow to be put under tension in order in this way to fix the artificial foot to the ski boot. The mechanism (31 to 34) permits a force which is vertical or inclined to the vertical to be exerted on the front part of the transmission rod (10). Said force is eccentric with respect to the foot. The transmission rod (10) can be inserted into a tube length (10), which is attached to the upper end of the foot stand (4), in order to be coupled thereto. In a similar way, a transmission member (11), which is connected to a torque motor by means of a universal joint (12) and a rod (14), can be inserted into this tube length in order to be coupled thereto, so that then a pure torque can be exerted on the artificial foot and thus on the ski boot.
Patent FR-2483376-A1 (FR)
Title: Plate storage and transport installation - is used for food trays moved by conveyor band and transferred to position changer and finally into shelved truck or vice=versa
Inventor: STREB MICHAEL
IPC: B65G37/02
Filed: 1981-05-27
Abstract: Installation for the storage of plates coming on a conveyor band and for stacking them in a shelved truck and for the opposite movement. The plates moved on a conveyor band are conveyed in to a stacker either singly or in groups. From there they are transferred into a position changer and are then moved in blocks into a shelf truck. The transfer of the plates may also be carried out in the opposite direction. The shelf trucks are moved from a shunting installation to the loading or unloading point and are also removed by the shunting installation from this area.
Patent FR-2507002-A1 (FR)
Title: Contact device for circuit breaker - has stop with two projections extending towards movable contact lever
Inventor: WIRTH HERBERT
IPC: H01H3/00
Filed: 1981-05-27
Abstract: The contact device comprises a movable contact lever (1) having at one end a contact zone (3) for cooperation with a stationary contact element (4). The contact lever is mounted at its other end on a pin (12) which upon tripping of the switch can move along a path (16) transversely of the contact lever (1). In a zone between the pin (12) and a stop for the contact lever (1), such stop being formed by a casing part (9), a compression spring (13) acts on the contact lever (1) to produce the contact pressure and to move the pin (12) upon tripping. The stop (9) has two projections (14,15) which extend towards the contact lever (1), one projection (14) being further from the pin (12) and nearer the lever (1) in its contact-closed position than the other projection (15). Consequently, at tripping the contact lever (1) pivots first around the projection (14) further from the moving pin (12), then around the projection (15) nearer the pin (12), with the result that, purely as a result of the shaping of the stop (9), a large contact-opening force is produced at the start of tripping and a long contact spacing is left at the end of the pivoting movement of the contact lever (1).
Patent FR-2513595-A1 (FR)
IPC: B65D81/32
Filed: 1981-09-29
Abstract: 1. Packaging for soluble consumable products, in particular food products, such as preparations for beverages, intended to be filled, in order to be dissolved, into a food container (8) which is open at its upper end and formed by a finished package shaped like a bowl (1) with a flange (4) closed by a tear-off covering (6) having a format basically the same as that of the opening of the food container (8) so as to be capable of fitting it with its flange supported on the rim of the opening of the food container, means being provided for holding the bowl (1) in the container (8), said finished package being characterized in that said means are exclusively provided on the outer periphery of the lateral wall (3) of the bowl (1) and are formed by bulges (10) or projections ensuring elastic pressure against the inner wall (21) of the food container (8).
Patent FR-2491914-A1 (FR)
Title: Procede d'utilisation d'un sous-produit de la desulfuration par voie seche des gaz de fumee pour la fabrication de ciment de cendres volantes
Inventor: BLOSS WOLFGANG
IPC: C04B22/14
Filed: 1981-10-08
Abstract: L'INVENTION CONCERNE UN PROCEDE DE FABRICATION DE CIMENT DE CENDRES VOLANTES UTILISANT UN SOUS-PRODUIT DE LA DESULFURATION PAR VOIE SECHE DES GAZ DE FUMEE CONSISTANT A TRAITER LE GAZ DANS UN ABSORBEUR AVEC UNE SUSPENSION DE CALCIUM A LA SORTIE DUQUEL LA MATIERE SOLIDE SECHE AURA, APRES TAMISAGE, UNE COMPOSITION DE 1 A 99 (ET DE PREFERENCE 20 A 95) DE CENDRES VOLANTES ET DE 1 A 99 (ET DE PREFERENCE 5 A 80) DU TOTAL DES PRODUITS DE LA DESULFURATION COMPOSES DE PREFERENCE D'HYDRATES DE SULFATE OU DE SULFITE DE CALCIUM. L'INVENTION DISPENSE DE LA FORMATION DE DEPOTS DE DECHETS PREJUDICIABLES A L'ENVIRONNEMENT ET REDUIT L'EPUISEMENT DES GISEMENTS NATURELS DE GYPSE ET DE CHAUX.
Patent FR-2494997-A1 (FR)
Title: Sudden deceleration-activated belt slack cancelling mechanism - includes light-weight piston and cylinder assembly of high tensile strength
Inventor: FOHL ARTUR
IPC: B60R22/195
Filed: 1981-11-27
Abstract: The seat belt (1) is led through a deviating fitting (4) to the spool (2) of the retractor (3). In front of the vertical part of the belt (1) between the deviating fitting (4) and the retractor (3) deviating elements (23,24) are fitted rigidly to the vehicle body. In the gap between the two elements a loop (21) of the belt slack cancelling mechanism is positioned in such a way that the belt is led through the loop. The loop (21) continues with a pull rope (18) connected to a piston inside the cylinder (17) of the slack cancelling mechanism (7). On the loop-adjacent end of the cylinder (17) a distributing ring (9) is fitted connected to cartridge (8) containing an explosive charge which is set off by an electric impulse produced by sudden deceleration of the vehicle. The gases produced by the detonation drive the piston inside the cylinder (17) backwards and loop (21) tautens the belt (5).
Patent FR-2495378-A1 (FR)
Title: Circuit de protection, contre les tensions transitoires, comprenant un thyristor (scr), pour circuits integres
Inventor: AVERY LESLIE RONALD
IPC: H01L27/02
Filed: 1981-12-02
Abstract: La présente invention concerne un circuit de protection pour circuits intégrés. Selon l'invention, on prévoit un substrat 12 en matériau semiconducteur d'un premier type de conductivité ; une couche 14 de semiconducteur d'un second type de conductivité sur le substrat 12 ; une première région 18 du premier type s'étendant dans la couche 14 pour former une jonction PN 20 ; une seconde région 22 du second type s'étendant dans la première région 18 pour former une jonction PN 24 ; une troisième région 32 du premier type de conductivité s'étendant de la surface à travers la couche 14 jusqu'au substrat 12 et séparée de la première région 18 par une partie de la couche 14 ; une couche isolante 26 à la surface entre les régions 22 et 32 ; un moyen 34 pour produire un contact électrique vers la région 32 ; un moyen conducteur 28 formant un transistor à effet de champ à porte isolée avec la couche 26, les régions 18, 32 et la couche 14 ; et un moyen 30 permettant un contact électrique simultané avec la région 22 et le moyen conducteur 28. L'invention s'applique notamment à l'électronique. (CF DESSIN DANS BOPI)
Patent FR-2518348-A1 (FR)
Title: Membrane de haut-parleur et procede pour sa fabrication
IPC: H04R7/02
Filed: 1981-12-16
Abstract: L'INVENTION CONCERNE UNE MEMBRANE DE HAUT-PARLEUR ET UN PROCEDE POUR SA FABRICATION. LA MEMBRANE PEUT ETRE PAR EXEMPLE CONSTITUEE D'UN ASSEMBLAGE DE PANNEAUX 1, 5 DE FIBRES RESISTANTES CONTINUES, PAR EXEMPLE AU CARBONE, IMPREGNEES D'UNE RESINE SYNTHETIQUE POLYMERISABLE, LA MEMBRANE ETANT CONSTITUEE DE DEUX COUCHES 2, 6 DE PANNEAUX SUPERPOSES, LES FIBRES DE L'UNE DES COUCHES DE PANNEAUX S'ETENDANT DANS UNE DIRECTION RADIALE OU PRATIQUEMENT RADIALE DE LA MEMBRANE ET LES FIBRES RESISTANTES DE L'AUTRE COUCHE DE PANNEAUX ETANT DIRIGEES DANS UNE DIRECTION PERPENDICULAIRE OU APPROXIMATIVEMENT PERPENDICULAIRE AUX GENERATRICES DE LA MEMBRANE. LE PROCEDE CONSISTE ESSENTIELLEMENT A DECOUPER DANS UNE NAPPE DE FIBRES UNIDIRECTIONNELLES, ET DANS L'ORIENTATION VOULUE, DES PANNEAUX 1, 5, ET A LES DISPOSER SUR LE NOYAU D'UN MOULE CHAUFFANT POUR ASSURER LA POLYMERISATION DE LA RESINE.
Patent FR-2519388-A1 (FR)
Title: Connector for perpendicular joining of hollow sections - has expanding jaws to grip grooved extrusion linked to box section
IPC: F16B7/04
Filed: 1982-01-06
Abstract: The connector (1) joins a box section (3) at right angles to a grooved extrusion (2). The two straight, parallel parts of the connector which slot into the box section are linked by a pivot joint (27) which allows slight rotation to allow the connector to grip inside the box section. Tapered jaws at the opposite end of the connector have a neck which slides into the groove of the extrusion (2). A cotter pin (22) is pulled outwards by a screw (25), pushing a roller (18) towards the jaws which are forced apart, initially by rotation about a pivot (27) and then by elastic deformation of the jaws until they grip on the edges of the grooved section.
Patent FR-2520955-A1 (FR)
Title: Systeme electronique de transmission secrete de signaux audio
Inventor: TAURIN MICHEL
IPC: H04N7/167
Filed: 1982-01-29
Abstract: SYSTEME DE TRANSMISSION SECRETE DANS LEQUEL D'UNE PART UN DISPOSITIF DE CODAGE COMPREND UN FILTRE PASSE-BAS D'ENTREE RECEVANT DES SIGNAUX AUDIO A TRANSMETTRE DE FACON SECRETE, DEUX VOIES EN PARALLELE EN SORTIE DE CE FILTRE COMPOSEES CHACUNE D'UN MODULATEUR DU TYPE A INVERSION DE PHASE ET D'UN NOUVEAU FILTRE PASSE-BAS, UN ETAGE DE GENERATION DE DEUX SIGNAUX DE MODULATION DE FREQUENCE F ET F, ET UN PREMIER INVERSEUR QUI RECOIT LES SORTIES DES DEUX VOIES ET SELECTIONNE L'UNE OU L'AUTRE SELON L'ETAT HAUT OU BAS D'UN SIGNAL BINAIRE PSEUDOALEATOIRE, LA SORTIE DE CET INVERSEUR CONSTITUANT LES SIGNAUX AUDIO CODES, ET DANS LEQUEL D'AUTRE PART UN DISPOSITIF DE DECODAGE COMPREND UN ETAGE DE RECONSTRUCTION DES SIGNAUX DE FREQUENCES F ET F, UN DEUXIEME INVERSEUR QUI RECOIT CES DEUX SIGNAUX ET SELECTIONNE L'UN OU L'AUTRE SELON L'ETAT HAUT OU BAS D'UN SIGNAL BINAIRE PSEUDOALEATOIRE SYNCHRONE DE CELUI UTILISE A L'EMISSION, UN DEMODULATEUR ET UN FILTRE PASSE-BAS DONT LA SORTIE DELIVRE LES SIGNAUX AUDIO DECODES.
Patent FR-2522281-A1 (FR)
Inventor: RAUFAST CHARLES
IPC: C08F2/34
Filed: 1982-02-26
Abstract: The invention relates to a device and process permitting of the bottom drainage of a fluid-bed polymerization reactor (1) comprising a fluidization plate (2), a gas inlet (3) located between the said plate and the bottom of the reactor and a side pipe (4) located above the said plate and permitting of the evacuation of the fluidized particles, the said device consisting: of a vertical pipe (5) having a top opening at the level of the plate and a bottom end located outside and underneath the bottom of the reactor, which is occluded by a cock (6), and a gas intake tube (7) in the said vertical piping, leading out into the immediate vicinity of the said cock (6).
Patent FR-2501439-A1 (FR)
Title: Discriminateur de bande d'energie
Inventor: GRITTON CHARLES WILLIAM KEVIN
IPC: H04B3/23
Filed: 1982-03-03
Abstract: L'INVENTION CONCERNE LA DETERMINATION DE LA NATURE SPECTRALE DE L'ENERGIE CONTENUE DANS UN SIGNAL RECU. UN DISCRIMINATEUR D'ENERGIE 103 DETERMINE SI L'ENERGIE PRESENTE DANS UN SIGNAL RECU EST DE L'ENERGIE A BANDE COMPLETE OU DE L'ENERGIE A BANDE PARTIELLE, EN COMPARANT UNE VALEUR MOYENNE DU SIGNAL RECU A UNE VALEUR ABSOLUE MODIFIEE DE CE SIGNAL. LORSQUE LA VALEUR ABSOLUE MODIFIEE DEPASSE LA VALEUR MOYENNE, LE SIGNAL RECU CONTIENT DE L'ENERGIE A BANDE COMPLETE ET, DANS LE CAS CONTRAIRE, IL NE CONTIENT QUE DE L'ENERGIE A BANDE PARTIELLE. CETTE TECHNIQUE EST UTILISABLE DANS UN ANNULEUR D'ECHO 100 POUR AMELIORER SES CARACTERISTIQUES D'ADAPTATION AU SIGNAL. APPLICATION A LA TELEPHONIE.