baber/WOPTO huggingface dataset:
Patent CS-238058-B1 (CS)
Inventor: DOSKAR JOSEF
IPC: B22C1/16
Filed: 1981-11-02
Abstract: Účelem vynálezu je zvýšit životnost
pojivá při zachování technologických vlastností.
Dosahuje se toho tím, že poměr objemu
primární dávky etylsilikátu 40 a druhé
dávky této látky se pohybuje mezi 1 až
1,8 a že jako kyselý hydrolysační katalyzátor
se používá kyselina sírová spolu
s organickou ji rozložitelnou kyselinou
mravenčí nebo šřavelovou, přičemž hmotový
poměr organická kyselina - jako mravenčí
nebo štavelová ku kyselině sírové se pohybuje
mezi 4 : 1 až 15 : 1, a hmotový po-,
měr směsi obou kyselin a užitné hmotnosti
etylsilikátu 40 leží mezi 1 : 65 až 1 : 85»
a ku hydrolýze užité množství vody je takové,
aby stačilo na odbourání 90 - 97,5 %
etoxylových skupin z etoxylanů, etoxysiloxanů
a etoxypolysiloxanů přítomných v
užitém hotovém množství směsi organických
sloučenin křemíku, etoxysilanů, etoxysiloxanů,
etoxypolymiloxanů s hmot. obsahem
cca 40 - 41 % SÍO2, jako etylsilikátu 40
Patent CS-249171-B1 (CS)
Inventor: SAMAL OLDRICH
IPC: C02F9/00
Filed: 1984-11-09
Abstract: Podstata způsobu čištění splaškových
odpadních vod, kombinovaným biologickým
a chemickým procesem, kde chemický proces
spočívá v čiřeni hydrolyzujícimi koagulanty,
spočívá v tom, že chemické dočiáíování
vody odtékající z biologického procesu se
zahájí v okamžiku a provádi po dobu, kdy
hodnota BSKc je nad 5θ mg.I-1,
Z vody vedené do procesu chemického čištěni
se před vstupem do tohoto procesu sedimentaci
oddělí biologický kal, který se
vrací do procesu biologického čištěni.
Výsledný kal se shromažďuje v zahušfovacim
prostoru, odkud se podle poljřeby odpouští
k dalšímu zpracováni, odsazená kalová
voda se vrací do čisticího procesu.
Hydrolyzujioí koagulanty, například železnatá
nebo želežitá soli, se dávkuji v kombinaci
8 desinfekčním prostředkem, například
alkalickým chlornanem.
Patent CS-244956-B1 (CS)
Inventor: LICHTENBERG LADISLAV
IPC: H03K19/00
Filed: 1983-11-21
Abstract: Zapojenie digitálneho integrátora s premennou
periodou je určené k vyhodnoteniu,
integrácii, jednopólového signálu, respektive
striedavého upnutého na jednosmernú zložku.
Binárně kódy okamžitých hodnflt vyhodnocovaného
signálu sú zapisované do prvého
počítadla. Hodinové, impulzy, z ktorých
sa v deliacom obvode vyrábajú riadiace
vzorkovacie impulzy a nulovacie impulzy,
sa počítájú v prvom i v druhom počítadle.
Pri vynulovaní prvého počítadla sa zablokuje
vstup hodinových impulzov do druhého
počítadla, ktorý sa odblokuje až pri příchode
ďalšieho vzorkovacieho impulzu. Před
príchodom nulovacieho signálu je na výstupe
druhého· počítadla hodnota integrácie
sledovaného signálu. Zapojenie je zřejmé z
obr. 1.
Patent CS-271112-B1 (CS)
Title: Separator for non-ferrous metallic articles
Inventor: ODSTRCIL LIBOR ING
IPC: B03C7/02
Filed: 1987-11-30
Abstract: A non-ferromagnetic sheet metal (4) is stretched across the upper surface of a linear electric motor (3), with one end mounted to the case (1) and the other fitted with a slack adjuster (10). Each vibrator (12) is placed bellow the level of the functional surface of the upper-most located electric motor (3). Underneath the case (13), there is an air cooling fan (13) with linear electric motors (3).<IMAGE>
Patent CS-257195-B1 (CS)
Inventor: MATOULEK JAROSLAV
IPC: C07C43/29
Filed: 1986-12-15
Abstract: Účelem řešeni je způsob přípravy
chlorovaných 2~chlormetansulfonylaminodifenyleterů
reakcí chlormetansulfonylchloridu
s příslušným substituovaným
2,-aminodifenyleterem v organickém rozpouštědle
za přítomnosti pyridinu jako katalyzátoru
tak, že se pro chlormetansulfonylaci
odpadající vodný roztok obsahující
pyr.idinhydrochlorid převede na volnou bázi,
která se extrahuje organickým nepolárním
rozpouštědlem, vzniklý extrakt se : í
předestiluje a bezvodá frakce s obsahem
pyridinu s rozpouštědlem se použije k další
chlormetansulfonylaci.
Patent CS-244535-B1 (CS)
Inventor: ADENIN ROMAN M
IPC: B30B1/26
Filed: 1981-12-16
Abstract: Účelem řešení je zjednodušení konstrukce
a vytvořeni snadné obsluhy lisu·
Mechanický lis zahrnuje beran, jenž je
namontován ve vodicích lištách stojanu 1,
hnací klikový hřídel 2, jehož čep je spojen
s ojnicí 8, ta je přes kloub spojena
s beranem a dále spínací zařízení.
Podstatou řešení je to, že spínací
zařízení je realizováno v podobě výstřed- '
níkové hlavy 7, která je uložena v otvoru
ojnice 8 a spojena s čepem klikového hřídele
2, posuvnou zarážkou 14, odpruženého
zajištovače a mechanismem na zatěžování
ojnice 8, přičemž odpružený zajištovač
je proveden ve tvaru dvouramenné páky 16
se zubem, na výstřednlkové hlavě 7 je
drážka odpovídající tomuto Zubu a na hlavě
ojnice 8 je pevný doraz, posuvná zarážka
14 je namontována na stojan 1, na jedno
rameno odpruženého zajištovače váleček 19
a druhé rameno odpruženého zajištovače je
kloubem spojeno s ojnicí 8.
Patent CS-244232-B1 (CS)
Inventor: CEJKA JIRI
IPC: F16K39/02
Filed: 1984-12-07
Abstract: Vynález spadá do oboru armatur a řeší
spoj vřetena a pohonu armatury, zejména
z hlediska seismicity.
Podstatou vynálezu je, že v hlavě třmenu
je kluzně uložen unageč, jehož horní část
je uzpůsobena pro připojení pohonu a v jehož
spodní části je vytvořeno vybrání, ve kterém
je axiálně posuvně uložena vřetenová matice
s vřetenem, přičemž mezi dnem vybrání a vřetenovou
maticí je vložen pružný článek.
Patent CS-267320-B1 (CS)
Inventor: CIERNY PAVOL ING
IPC: H02M7/539
Filed: 1987-12-27
Abstract: RieSenie spadá dozodboru stavby striedačov
obzvlášť pre oblukové zváracie zdroje
a týká sa zapojenie riadiacich obvodov
pre epínanie výkonových spínacích prvkov.
Zapojenie pozostáva z prudového snímače,
dvoch generátorov pilového napatia, dvoch
komparátorov regulátora, dvoch časovačích
obvodov, dvoch impulzných zosilnovačov,
dvoch oneskorovacích obvodov a bistabiíného
klopného obvodu.
Patent DK-169306-B1 (DK)
Inventor: CHRISTENSEN HENRY MARINUS
IPC: A61L2/00
Filed: 1989-06-14
Granted: 1994-10-10
Abstract: A composition for removing or inactivating harmful components including virus from blood or other extracellular liquids comprises a crown ether compound substituted on a polysaccharide, preferably dextran. The composition may be soluble in water, preferably for intraveneous application, or insoluble for extracorporeal application.
Patent IE-33337-B1 (IE)
Title: Propionic acid derivatives and manufacture thereof
Inventor: ROSSI A
IPC: C07C17/16
Filed: 1969-10-10
Abstract: 1283367 α - [p - (1 - Cyclohexenyl) phenyl] propionic acid CIBA-GEIGY AG 25 Sept 1969 [11 Oct 1968 6 Nov 1968 8 May 1969 21 Aug 1969] 47182/69 Heading C2C The novel title compound and salts thereof are prepared by hydrolysing α-[p-(1-cyclohexenyl) phenyl) propionitrile, and if desired, converting the resulting acid into salts. The racemic mixture obtained by the above process may be resolved by treating it with optically active bases, for example, cinchonidine or (-)-α-phenyl-ethylamine. Pharmaceutical compositions, suitable for eneteral, parenteral or topical administration and having analgesic and anti-inflammatory activity, contain the above novel compound or salts thereof in admixture with pharmaceutically acceptable carriers.
[GB1283367A]
Patent IE-48303-B1 (IE)
Title: An air-depolarized primary cell
IPC: H01M12/06
Filed: 1979-08-08
Abstract: The invention relates to an air-depolarized primary cell which includes a container (1), a negative electrode (4) disposed against the walls of the container, a positive electrode (3) disposed in the central portion of the container and a ventilation circuit (6, 8, 9, 28) for the positive electrode; a gas-filled space (15) is provided above the negative electrode and the electrolyte for accommodating the negative electrode as it expands during use; the space is delimited by the ventilation circuit, the walls of the container and a wall (26) which is impermeable to oxygen. In accordance with the invention, the periphery of the impermeable wall has a step configuration rim (27, 30) welded to the walls of the container, this avoids cracks damaging the seal (17) between the impermeable wall (26) and the ventilation circuit when the walls of the container (1) are deformed by the expanding negative electrode.
Patent IE-45357-B1 (IE)
Title: Nitroaromatic glycosides and their preparation
IPC: C07H15/203
Filed: 1977-07-13
Abstract: The process is used to prepare nitroaromatic glycosides of the formula (I)  R and n are characterised in the preceding Claim 1. This process starts from acetylated glycosides of the formula  in which Ac is an acetyl radical. These glycosides are reacted with specific phenols in the presence of a catalyst at a temperature in the range from 80 to 120 DEG C. The product formed thereby is nitrated and finally deacetylated. The compounds obtained in this way can be used for the determination of alpha -amylase.
Patent IE-41632-B1 (IE)
Title: Handling of livestock
IPC: A61D3/00
Filed: 1975-07-17
Abstract: This invention relates to the handling of livestock. It is an objective of the invention to provide ar assemhly whereby a single person can trap and temporarily immobilise an animal for the performance of an operation, 5 such as marking or injection, and thereafter release the animal. Such an assembly is sometimes referred, to as a 'cattle crush*.
Patent IE-33671-B1 (IE)
Title: Improvements in or relating to devices for the removal of viscous liquids from vacuum operating equipment
IPC: F04C2/16
Filed: 1969-12-11
Abstract: 1,261,976. Meshing screw pump. SNIA VISCOSA SOC. NAZIONALE INDUSTRIA APPLICAZIONI VISCOSA. Dec.10, 1969 [Dec.12, 1968], No. 60237 /69. Heading F1F. A screw pump for removing a viscous liquid from a vessel 10 under vacuum, comprises a driving screw 22 meshing with a pair of driven screws 23 mounted in a casing 21 which is fitted within a cylindrical member 20 inserted in a neck 15 in the base of the vessel 10, the driving screw 22 terminating at the base of the vessel 10, whilst the driven screws 23 have end portions 23<SP>1</SP> which extend into the liquid 12 being pumped. The cylindrical member 20 extends into the vessel 10 and has a series of circumferential openings 30 adjacent the end portions 23<SP>1</SP> of screws 23 which bear axially against a screw cap 31 fitted to the end of member 20, the cap being provided with openings (32) Figs. 2, 3 (not shown) for the escape of gas bubbles. The vessel 10 and the neck 15 are surrounded by a jacket 14 through which a heating liquid, e. g. diphenyl, is circulated. The pump outlet chamber 40 and duct 42 are also surrounded by a heating jacket 51, 52. The driving screw 22 is connected to a drive shaft 25 supported in a housing 45, 48 by means of a stuffing box 49 comprising a number of annular packing glands of e.g. asbestos fibres. A liquid buffer which does not react or mix with the pumped liquid, is supplied under pressure to the stuffing box 49.
[GB1261976A]
Patent IE-57455-B1 (IE)
Title: Security fencing
IPC: E04H17/20
Filed: 1986-07-25
Abstract: Security fencing has a number of posts and steel mesh attached thereto. Each post comprises a fixed section ll0 and a movable section l20. The fixed section ll0 has a number of internal supports l35 on which the steel mesh is located. The movable section l20 is adapted to fit over the fixed section ll0 and is provided with a number of locking members l40 which engage corresponding locking bars l45 secured within the fixed section ll0. Nine different embodiments are disclosed, some of which may be used in high security applications and others in moderate to low security applications.
Patent IE-46049-B1 (IE)
Title: Ice confectionery and processes for its preparation
IPC: A23G/
Filed: 1977-09-30
Abstract: The properties of ice creams scoopable at deep-freeze temperatures are improved by incorporating stabilizer mixtures comprising (a) locust bean gum and/or tara gum and (b) kappa-carrageenan and/or xanthan gum and/or agar-agar.
Patent IE-47963-B1 (IE)
Title: Method and means for recording sweat gland activity including fingerprinting
IPC: A61B5/107
Filed: 1978-10-27
Abstract: Method and apparatus for recording sweat gland activity which provides a pictorial representation thereof by physical contact of an iodide treated skin area with a dry sensitized substrate. In one preferred embodiment, the sensitized substrate comprises a sheet material which has been coated with an aqueous solution containing from 1 to 10 percent by weight of starch and from 2 to 10 percent by weight of a suitable oxidizing agent such as potassium persulfate. Alternately, the dry sensitized substrate comprises a starch-oxidizing agent mixture which has been impregnated into an absorbent base layer. With slight modification of the foregoing embodiment, the present invention also provides a method and apparatus for obtaining inkless fingerprints by forming a sensitized coating in situ on a substrate. For fingerprinting purposes, the sensitized coating is preferably formed from a quick drying starch-oxidizing agent solution including alcohol as a solvent. Accordingly, an aqueous iodide solution is applied to the skin area, and the treated skin area is subsequently contacted with the dry sensitized coating to produce the fingerprint.
Patent IE-60279-B1 (IE)
Title: A cdna coding for carcinoembryonic antigen
IPC: C12N15/00
Filed: 1987-08-12
Abstract: A nucleic acid comprising a base sequence which codes for a CEA peptide sequence or nucleic acids having a base sequence hybridizable therewith, replicable recombinant cloning vehicles having an insert comprising such nucleic acid, cells transfected, infected or injected with such cloning vehicles, polypeptides expressed by such cells, antibody preparations specific for such polypeptides, immunoassays for detecting CEA using such antibody preparations and nucleic acid hybridization methods for detecting a CEA nucleic acid sequence using a nucleic acid probe comprising the above described nucleic acid.
Patent IE-40113-B1 (IE)
Title: Preparation of 5-indanol
IPC: C07C27/00
Filed: 1974-11-12
Abstract: 1420730 5-Indanol PFIZER Inc 28 Nov 1974 [13 Dec 1973] 51677/74 Heading C2C 5-Indanol is prepared by contacting a 5- acylindane, in which the acyl group has the formula RCO-, R being a C 1 -C 12 alkyl group or a phenyl, benzyl, phenethyl or a chloro-, bromo- or fluoro-phenyl group, with 1-4 molar equivalents of a peroxycarboxylic acid at 20- 100‹ C. to obtain the corresponding 5-acyloxyindane and hydrolysing this at 0-150‹ C. to give 5-indanol. The peroxy acid may have the formula in which R<SP>1</SP> is hydrogen, a C 1 -C 4 alkyl group or a trifluoromethyl, phenyl, naphthyl or chlorophenyl group or it may be a peroxy dicarboxylic acid. If performic acid is used it may be formed in situ. The intermediate acyloxy compound need not be isolated but hydrolysed without separation. Examples describe the conversion of various acylindanes to 5-indanol and in the case of the conversion of acetyl indane using performic acid the acetoxyindane is isolated before being hydrolysed.
[GB1420730A]
Patent IE-55642-B1 (IE)
Title: Rock drill bit
IPC: E21B10/56
Filed: 1984-09-19
Abstract: A rock drill bit of the impact type comprising a boring head (11), a shaft (12) having ridges (18), a front surface (13) and a number of peripherally spaced holes receiving inserts (14), said holes extending forwardly and outwardly at an acute angle with respect to the center line (CL,) of the drill bit (10). The guiding surface (25) of the insert (14) mainly coincides with the jacket surface (16) of the bit body (10) when the insert (14) has been fixed in the hole which emerges into both the jacket surface (16) and the front surface (13) of the bit body (10). This means that the guiding surface (25) partly extends on both sides of the plane of the front surface (13).
Patent IE-50374-B1 (IE)
Title: Method for attaching and securing current supply wires to electrical components
IPC: H01G13/00
Filed: 1980-11-28
Abstract: A method is disclosed for attaching and securing power supply leads to electrical components including ceramic multi-layer capacitors. A tape-shaped transport carrier is continuously provided with power supply leads having a U-shaped portion projecting over the edge of the transport carrier. The U-shaped portion is bent up to form a loop and is then provided with bends. The U-shaped connection part is bent down approximately 90 DEG  so that the front bends form an insertion aid for the insertion of the components between the supply leads. A solder operation then follows.
Patent IE-58531-B1 (IE)
Title: Method of preparing enhanced efficacy aluminum chlorhydrate antiperspirant and antiperspirant composition
IPC: C01F7/57
Filed: 1985-11-20
Abstract: Two-thirds to five-sixths basic aluminum chlorides having enhanced antiperspirant efficacy are produced by heating an aqueous solution containing about 40 to about 50 weight percent of the basic aluminum chloride to a temperature of at least about 130 degrees C for about one to twelve hours in a closed vessel, with the heating time being inversely proportional to the temperature. Five-sixths basic aluminum chlorides treated in this manner are characterized by a size exclusion chromatogram having a single major peak with its apex at a relative retention time of about 0.75 - 0.79. The basic aluminum chlorides may be incorporated into any of the conventional antiperspirant forms with non-toxic, dermatologically acceptable carriers.
Patent IE-53050-B1 (IE)
Title: Complementary metal-insulator-semiconductor memory decoder
IPC: G11C11/418
Filed: 1981-12-22
Abstract: A complementary metal-insulated semiconductor (CMIS) memory decoder (41) according to the invention is useful for a highly integrated large-capacity ROM or RAM. The CMIS memory decoder specifies each set of 2m (where m is positive integer) word lines [W0-W3] of a memory (40) to be accessed by the CMIS memory decoder. The decoder comprises 2m CMIS inverters (30, 31) for each set of the 2m word lines and also (2m-1) pull-down transistors (32) for each word line, the pull-down transistors being connected between ground (GND) and the corresponding word lines, the other (2m-1) word lines being connected to the gates of the pull-down transistors.
Patent IE-52785-B1 (IE)
Title: Gusseted pouch
IPC: B65D30/08
Filed: 1981-12-30
Abstract: A gusseted pouch for cut tobacco is made from outer sheet blanks sandwiching an intermediate paper layer, folded to form a pocket with side walls. This causes an excess accumulation of material at the side edges in the region of the pouch pocket opening due to a plurality of layers of material. To counteract the difficulties resulting therefrom during the production of a closure for the pocket, recesses 28, 29, 30, 31 are provided in the paper blank at its lateral edges and corners.
[US4402403A]
Patent IE-74882-B1 (IE)
Title: Process for the dehalogenation of 1,3-dioxolanes
Inventor: NAVARRINI WALTER
IPC: B01J23/06
Filed: 1992-02-06
Abstract: A process for the dehalogenation of 1,3-dioxolanes of formula: wherein X1 and X3, like or different from each other, are Cl or Br, X2 and X4 , like or different from each other, are F or H. Said process consists in contacting the dioxolane of formula (I) with metallic zinc at a temperature ranging from + 30 DEG to 130 DEG C. The corresponding dioxoles are obtained.
Patent IE-73238-B1 (IE)
Title: Cap for a container and opening means therefor
Inventor: OGDEN BRIAN LESLIE
IPC: B65D41/34
Filed: 1992-07-01
Abstract: A cap (1) having a top (2) and a depending skirt (3) which receives the neck of a container at its lower end, wherein the skirt (3) is provided at its outer and upper end portion with a first engaging means (6,7) for engaging an annular spanner located around the cap (1), and a seating means (8) at the base of the first engaging means (6,7) on which the annular spanner rests. Preferably the cap is for a medicine container and is circular; In a further enbodiment the cap is a two part child resistant cap designed to provide tamper evidence; There is further provided a medical implement adapted to engage over the cap and a kit comprising the cap and an annular spanner. <IMAGE>
Patent IE-78841-B1 (IE)
Title: Carbonaceous composition for fuel elements of smoking articles
Inventor: RIGGS DENNIS MICHAEL
IPC: A24D1/22
Filed: 1992-07-01
Abstract: It has been found that the addition of specific levels of sodium, advantageously in the form of sodium carbonate, to low sodium level binder, e.g., ammonium alginate, containing carbonaceous fuel compositions results in dramatic changes in the performance of both the fuel element themselves and, cigarettes (or other smoking articles) incorporating the fuel elements. These performance differences include variation in the yields of aerosol and/or flavorants. The addition of sodium carbonate to the fuel elements greatly improves the smolder rates and also improves puff calories, without overheating the cigarette, thereby resulting in substantial improvements in total (and puff by puff) aerosol yield. <IMAGE>
Patent JP-2924961-B1 (JP)
Title: 半導体発光装置及びその製法
IPC: H01L33/62
Filed: 1998-01-16
Granted: 1999-07-26
Abstract: 【要約】
【課題】  半導体発光装置の耐環境性及び耐紫外線性を 改善する。
【解決手段】  一対の配線導体（３、４）と、一対の配 線導体（３、４）の一方の端部に固着された半導体発光 素子（２）と、半導体発光素子（２）を被覆する光透過 性の絶縁物封止体とを備えた半導体発光装置において、 ガラス層（１０）により絶縁物封止体を構成する。半導 体発光素子（２）から照射される光に対して光透過性を 有し且つ半導体発光素子（２）から照射される光を吸収 して他の発光波長に変換する蛍光物質（１０ａ）をガラ ス層（１０）中に混入させる。半導体発光素子（２）の 発光をガラス層（１０）中の蛍光物質（１０ａ）によっ て所望の発光波長に変換し、半導体発光素子（２）を包 囲するガラス層（１０）を通して外部に放出される。
Patent LU-100121-B1 (LU)
Title: Intelligent smoke exhaust ventilator
Inventor: WU LIQING
IPC: F24C15/20
Filed: 2017-03-07
Granted: 2017-06-19
Abstract: The present invention relates to an intelligent smoke exhaust ventilator with detection and control functions. The intelligent smoke exhaust ventilator includes a housing and an air extracting system as well as a control system, and also includes a gas detection device and an external linkage module, wherein the external linkage module performs information transmission and control by utilizing a wifi transmission device and the control system. The intelligent smoke exhaust ventilator further includes a sound-light alarm device and a GSM (global system for mobile communication) module. The external linkage module consists of an airflow inducing device, an air valve, a battery and a boosting circuit. The intelligent smoke exhaust ventilator with detection and control functions has the advantages of simple structure, safety and efficiency.
Patent LU-102577-B1 (LU)
Title: Umweltschutzmaschine zur Müllzerkleinerung
Inventor: ZHU JINGJING
IPC: B02C18/00
Filed: 2020-12-19
Granted: 2021-08-26
Abstract: Die Erfindung offenbart eine Umweltschutzmaschine zum Zerkleinern von Müll und bezieht sich auf das technische Gebiet der Müllzerkleinerungsvorrichtung. Sie umfasst einen Kasten, einen ersten Hohlraum, einen zweiten Hohlraum, eine erste Brechwalze, einen Stützrahmen, eine zweite Brechwalze, eine Rückstellfeder, einen Verbindungskanal, einen Kanal für harte Gegenstände, einen dritten Hohlraum, einen Stopper, eine feste Welle, eine Verbindungsstange, einen festen Block, eine Schubstange, ein erstes Filtersieb, einen ersten Servomotor, ein Brechmesser, eine Raupe, einen zweiten Servomotor und eine Zuführöffnung, wobei die Innenwand des zweiten Hohlraums anpassend mit einem zweiten Filtersieb unter dem Brechmesser versehen ist. Bei der Erfindung kann durch Einstellen der Rückstellfeder, der Verbindungsstange, der Schubstange und des Stopper die zweite Brechwalze zusammengezogen und der Abstand zwischen ihr und der ersten Brechwalze vergrößert werden, wodurch eine Beschädigung des Brechmechanismus durch zu harten Müll vermieden wird. Gleichzeitig wird der harte Müll gesammelt, um die Sicherheit der Vorrichtung sicherzustellen.
Patent NO-304866-B1 (NO)
Inventor: LOHDEMOKI HEIMO
IPC: H04B3/23
Filed: 1993-06-14
Abstract: Converging of an echo canceller (4A-D) integrated into a telephone exchange (1, 2) is initiated at the start of a telephone call by an internal command of the telephone exchange given by a call control (2) of the telephone exchange as soon as the call control (2) has observed an off-hook state of a called subscriber connection. The command causes the echo canceller (4A-D) to transmit a test signal to the echo path for converging the echo canceller before appearance of the speech signal.