CS247107B1 - Circuit of a telephone set with equipment for loud hearing and individual connection - Google Patents
Circuit of a telephone set with equipment for loud hearing and individual connection Download PDFInfo
- Publication number
- CS247107B1 CS247107B1 CS817525A CS752581A CS247107B1 CS 247107 B1 CS247107 B1 CS 247107B1 CS 817525 A CS817525 A CS 817525A CS 752581 A CS752581 A CS 752581A CS 247107 B1 CS247107 B1 CS 247107B1
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- Czechoslovakia
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- connection
- cbh3h
- resistor
- circuit
- resistors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Telephone Set Structure (AREA)
Description
-1-
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H3JIOJKGHH6 cymHocTH H3o6peTeHHH 3a#aaeH Η3θ6ρβτβΗΗΗ HBnaeTca cosnaHHe cxeMbi fljia τβπβφοΗΗΟΓο annapaTa c' npoBOflHbíM nHTaHHGM, xoTopaa npH MHHHMaJibHbK 3aTpatax H 6e3 BKHiOHGHHH ΛΟ- nOJIHHTGJlbHblX «ΘΜΠφΗργΜΠίΗΧ 3BeHbGB ΠΟΛβΒΠΗβΤ napa3HTHy!0 OĎpaTHyiO CBH3b MG®“ifly nepenaromeň η πρηθμηοη CTopoHoň. ΠρΗ 3TOM CTaBHTca Tax«G 3a#aaa ycTpaHe- HHH HGflOCTáTKa H3BeCTHbIX yCTpoňCTB rpOMKOrOBOpameň H HHflHBHflyaJlbHOH CBH3HC npOBOOHblM ΠΗΤΗΗΗΘΜ,, XOTOpblň COCTOHT B TOM, HTO Ha ΠΟββΒΠΘΗΗβ napa3HTHOÉoSpaTHOft CBH3H 33TpaaHBaeTCH aaCTb OTGHpaGMOH OT ΤβΠθφθΗΗθή CTaHlíHR MOUHO“cth, xoTopaa TaxHM oSpaaoM hg mojkgt 6ojigg Hcnonb3OBaTbca hh fljia ycHJiGHHaB npHGMHOM KaHajIG HH ΑΠΗ TpaHCJIHIJHH HGpG3 rpOMKOTOBOpHTGJIb, a KpOMG ΤΟΓΟ,npHBOflHT X OrpaHHHGHHJO flJIHHbl JIHHHň CBH3H JIHČO FpOMXOCTH TpaHCnHflHH HepG3rpOMKOťOBOpHTGJlb . IIomhmo 3τογο, b aaflaay bxoaht Taxise cHH3HTb yxyfltneHHG napaMGTpoB nofl-xnioHeHHH h nepeflaaH, npHGymee cxeMaM c αθμπΦηρυιοιπ;ημη SBeHbHMH, h saTpaT Ha • 3JlGMGHTbI H peaflH3aflHW φγΗΚΑΗΗ ynpaBfleHHH B CXGMaX C ynpaBJíaeMMMH yCHJlHTG-JIHMH HJ1H MOflyJlHUHeií ΠΟ BpGMeHH. i CorjiacHo Ή3ο0ρβτβΗΗΐο aaflaaa peraaeTca tgm, hto b H3bgcthoíí cxgmg pa3BGT“ ' ΒπβΗΗΗ nyTGM napaflflenbHoro nofíxaraaeHHa nocneflOBaTenBHoň flenoaxn ρβ3κοτοροΒíx pG3HCTopaM cxeMbi pa3BGTBJiGHHH pasMemeHa MocTOBaa cxGMa, xoTopaa pa36a- jŤíaHCHpyGTca b 3aBHCHMocTH OT aacTOTbi h ypoBHa xoppexTHpyxaxHM sbghom, cog-flHHGHHblM C flHaroHaJIHMH MOCT3. npH 3TOM COGflHHGHHG pe3HCTOpOB CXGMbl pa3BGTBHGHHa C ΜΗΚροφΟΗΟΜ OÓpa3yGToflHy Toaxy noflxníoaeHHa, a cpeflHaa Toaxa nocnep,oBarent>Hoň flenoaxn napan-jiGJibHO noflxmouGHHbix peaHCTOpOB - flpyryio Toaxy nofíXjnoaeHHa flHaroHaneň moc-Ta, X XOTOpbIM aepG3 KOHfleHCaTOpH nOflXJIIOneH yCHnHTGJIb fipHGMHOrO XaHaJia, Bbl“.nOJIHGHHblň B BHflG ΑΗφφβρβΗΑΗΗΠΒΗΟΓΟ yCHJlHTGJIH, ΠρΗΗΘΜ HHBepTHpyiOHflrii BXOflycHJiHTena πρηθμηογο XaHana h xoppexTHpyromero SBGHa coeflHHaeTca c ToaxoňnOflKJHOHGHHH, o6pa3yeMOÍÍ ΜΗΧροφοΗΟΜ H pG3HCT0paMH, HepG3 flpyroň PG3HCTOP·KoppexTHpywmee 3BGH0 h cxeMa pa3BeTBneHHH hmgkt npH 3TOM o6myw onopHyioToaxy. CHman, cHHTMň c flHaroHaneň MOCTa h noflaHHMň Ha ycHJiHTeab πρηθμηογοxaHana, c noMombro xoppGKTHpyramero 3BeHa npH Hcnojib3OBaHHH xapaxTepHCTHKHnoJiHoro conpoTHBJíeHHH BXOflOB nocjie«ywmero ycroiHTena πρηθμηογο xaHana ποητηóe3 HexaweHHÉ cxHMaeTca c aacTOTHoň HsĎHpaTenbHocTbH) b flHana3OHG BbicoxnxaaCTOT, xoTopbie npeflCTaBnaioT ocHOBHyto npHHHHy bo3hhxhobghhh napa3HTHoňoópaTHoň CBH3H c xaHanoM nGpG«aaH, b· to BpeMa xax flHanaaoH aacTOT, πρηηη-MaeMoro cHrnana, onpeflenaionuíň ocHOBHyw paaroBopHyio aacTOTy, ycHnHBaeTca nHHeňHo. m _ ______
3a CaeT BblSopa OTHOmGHHH ΟΟΠρΟΤΗΒΠβΗΗή B MOCTOBOH CXGMG ΒΠΗΗΗΗβ CXGMblpa3BGTBneHHH Ha Tpe6yeMyw pasCanaHCHpoBxy moctoboA cxeMbi npaxTHaecxH Heo-myTHMO. KoppGXTHpymeé 3ΒβΗΟ B COaeTaHHH C ΠΟΠΗΜΜ COnpOTHBnGHHeM BXOflOB 247107 -3- yCHJIHTejIH ηρΗβΜΗΟΓΟ KaHSJía, aaBHCHMblM ΟΤ ypOBHH Β BblÓpaHHOM AKanaSOHeypoBHH, o6ecneMHBaeT 3φφεκτ cacaTHa tojibko ajih bwcokhx ypoBHeň, οτΕβτοτΒβΗ-hux aa Β03ΗΗΚΗ0ΒβΗΗβ napa3HTHoň οβρβτΗοή CBH3H, a Ha ηηβκηθ ypoBHH He ofca-sbisaeTca CKonbKo-HH6yflb cymecTBeHHoro uacTOTHon36npaTejn>Horo bjihhhhh.
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Cx8Ma τεπεφοΗΗΟΓΟ annapaTa c ycTpoůcTBOM rpoMKoroBopameň h ηηαηβηηυ-aJIhHOH CBH3H C npoBOflHblM ΠΗΤ3ΗΗ8Μ H OTflOJlbHblMH yCHJIHTejIHMH Β ΠρΗβΜΗΟΜ HnepeflaiomeM xaHanax 6ε3 flonojiHHTenbHbix βεΜπφΗργκχηΗχ 3BOHb8B b sthx xaHa-nax, oTJiHHaioniaflCH tom, hto napajinojibno κ p83HCTOpaM (R 1, R 2) Η3βεετΗοήCXCMhl pa3B8TBJI8HHfl BKJnOH8H3 nOCJI8flOBaT8JIbHaH Ι^εΠΟΗΚΗ peaHCTopoB (R3...R5),xoTopwe b cepepjme o6pa3y»T Tonxy npncoep,imemifi (D) fíuaroaaneň MocTa,flpyroň TOHKoň npHcoenHHOHHH (Β) χοτορωχ hbjihctch cooahhohho ρβ3ΗοτοροΒ(R 1 , R 2) H3BeCTH0H CXeMbl ρ33ΒβΤΒΠβΗΗΗ C ΜΗΚροφΟΗΟΜ (Mi) , Η HTO X 3THMTOHK3M npHCO8flHH8HHH (B, D) nOflKJBOHBHbl KaK KOppeKTHpyKHHee 3B8HO (K) , TaXH H8pe3 KOHflOHCaTOpbl (C1, C2) yCHJIHTeflb B ΠρΗβΜΗΟΜ Kanajie (A), ΒΗΠΟΠΗβΗ-Hbrií Β BHH8 ΑΗφφερεΗμΗβΗΒΗΟΓΟ yCUJIHTOJIH, npHHOM B CBH3b C TOHKOft npHCOeflH”H8HHH (B), nonyqaaMoň H3 coBM8CTHoro BKJitoneHHH pe3HCTopos (R 1, R 2) paa-BeTBJlHlOmeH CXeMbl C ΜΗΚροφΟΗΟΜ (Mí) , BB8fl8H P83HCTOP (R 6) , Η ΟΠΟρΗβΗ TO.H“xa xoppaxTHpyramoro 3BeHa (K) CBHaaHa c h3B8cthoh pasBeTBJíHtoeaeíl cx8Moň.
AHHOTaUHH
CxaMa τεπεφοΗΗΟΓΟ annapaTa c ycTpoiicTBOM rpoMXoroBopamoň h HH«HBnny-anbHoň CBH3H o6ppy#oBaHa, b nacTHocTH, fljiH panHOHajiHaanHH ynpaBJíeHHOCxoňpa6oTbi yxjiaflbiBaaMoň Ha xopnyc ΜΗκροτεπβφοΗΗΟΗ Tpy6xoň η ΓρόΜχοΓΟΒορκτε-ji8M. ΙίεπΒ Η3ο6ρετεΗΗΗ coctoht b tom, hto6m cosflaTb cxBMy τεηεφοΗΗΟΓΟ an-napaTa C nROBOflHblM nHTaHHOM H C ycTpoiicTBOM rpOMKOrOBOpnmaň H HHAHBHfly-aJIbHOň CBH3H, KOTOpaH ΠρΗ MHHHMajIhHhlX 3aTpaTaX npeflOTBpamaeT BO3HHXHOB8-HH8 napasHTHoií oSpaTHoň CBH3H M8Hwy CTopoHOit περεηβΗΗ η ετοροΗοή npHOMa,a Taxx8 rapaHTHpyBT xopomHe napaMeTpbi nepenann πρκ 6ojihmoň flnHHe πηηηηCBH3H. Πρκ 3T0M CTaBHTCH 3anana yCTpaHGHHH H8flOCTaTXa H3B8CTHblX yCTpOňCTBrpOMXOrOBOpnmaň η HHflHBHnyaJIbHOft CBH3H, XOTOpblft 3aXJH0Ha8TCH B TOM, UTOHa noflaBJíeHHa napasHTHoň oČpaTHoft cbhsh aaTpa^HBaeTCJi saMeTHaa uacTb ot-6hp38moh ot τεηεφοΗΗοϋ CTaHijHH moq^hocth h hto, πομημο 3Toro, orpaHHUHBa— 247107 5 eTCH flnHHa JiHHHň cbh3h h MomnocTh, pacnonaraeMan flJin TpaHcnayHH uepearpOMKOrOBOpHTenb.
CornacHO Η3οβρβτβΗΗ» 3anana pemaeTca τθμ, ητο b HseecTHoň cxeMe pas-BeTBJíeHHH paaMemeHa μοοτοβηη cxeMa, κοτορβΗ pa36anaHCHpyeTCH c aaBHCHMO'-CTbJO OT ypOBHa H M8CT0TM KOPpeKTMpyKSUHM 3ΒβΗ0Μ, COeflHHeHHbJM C flUarOHaJIH"mm MocTa. CurHan, οηητμΛ c nuaronajieň moct a h noaaHHbiň Ha ycHJiHTenb npHfeMHoro KanaJia c πομοπιβιο KoppexTHpyiomero 3βθ,ηη h npn HcnonbsoBdHHH xapax-TepHCTHKH noJiHoro conpoTHBjíeHHH BxoflOB nocnenyrotnero ycHJiHTena πρπβΜΗΟΓΟKaHajia πομτη Čes HCKaxeHHň cxHMaeTca c nacroTHoň H36MpaTenbHocTbio b flHa-naaoHe bmcokmx nacTOT, b to speMa xax ««anasoH nacTOT npHHHMaeMoro CHr-toana, onpenenaiomHň ocHOBHy» pa3roBopHyio naoTOTy, ycmiHBaeTCH HHHeftHo. ΠρΗ3ΗΗΗθ H3o6peTeHHeM no pe3ynbT8TaM 3KCnepTH3bi, ocymecTBJíeHHofl BeflOM-ctbom no nenaM HaoSpereHnň η πητθητοβ PflP. 2 nepTexa 247107
Claims (1)
- PfiEDMfiT VYNÁLEZU 247 107 Obvod telefinního přístroje se zařízením na hlasitýposlech a individuální spojení s drátovým napájením ajednotlivými zesilovači v příjmovém a vysílacím kanálu .bez doplňkových tlumicích členů v těchto kanálech, vyzna-čující se tím, že paralelně k odporům (Rl, R2) rozvodnéhoobvodu je připojen sériový řetěz odporů (R 3 ·· R 5)> kte-ré uprostřed tvoří místo zapojení (D) úhlopříček můstku,když druhým místem zapojení (B) těchto úhlopříček je spo-jení odporů (Rl, R2) rozvodného obvodu s mikrofonem (Mi),přičemž k těmto místům zapojení (B, D) je připojen jakkorekční člen (K), tak i přes kondensátory (C 1, C 2) ze-silovač v příjmovém kanálu (A) v provedení rozdílovéhozesilovače, přičemž do spojení s místem zapojení (B), ježvzniká ze společného zapojení odporů (R 1, R 2) rozvodnéhoobvodu s mikrofonem (Mi), je zaveden odpor (R 6) a opětnémísto korekčního členu (K) je připojeno k rozvodnému ob-vodu.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD22657380A DD154419A1 (de) | 1980-12-23 | 1980-12-23 | Schaltungsanordnung fuer einen fernsprechapparat mit mithoer-und freisprecheinrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS752581A1 CS752581A1 (en) | 1985-06-13 |
| CS247107B1 true CS247107B1 (en) | 1986-11-13 |
Family
ID=5528312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS817525A CS247107B1 (en) | 1980-12-23 | 1981-10-14 | Circuit of a telephone set with equipment for loud hearing and individual connection |
Country Status (6)
| Country | Link |
|---|---|
| CS (1) | CS247107B1 (cs) |
| CU (1) | CU21478A3 (cs) |
| DD (1) | DD154419A1 (cs) |
| DE (1) | DE3129506A1 (cs) |
| HU (1) | HU187462B (cs) |
| RO (1) | RO85240B (cs) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3307552A1 (de) * | 1983-03-03 | 1984-09-06 | Hans Widmaier Fabrik für Apparate der Fernmelde- und Feinwerktechnik, 8000 München | Schaltung zur pfeifunterdrueckung bei fernsprechapparaten mit lauthoerverstaerker |
| DE3329476A1 (de) * | 1983-08-16 | 1985-03-07 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Schaltungsanordnung zur einschaltung von steuereinrichtungen bei fernsprechapparaten |
| DE3505213A1 (de) * | 1985-02-15 | 1986-08-21 | Deutsche Fernsprecher Gesellschaft Mbh Marburg, 3550 Marburg | Schaltung in einem fernsprechapparat |
| DE4329638C2 (de) * | 1993-09-02 | 1996-10-24 | Telefunken Microelectron | Lauthöreinrichtung |
| DE29614668U1 (de) | 1996-08-24 | 1996-11-14 | Kroos, Heinz Thomas, 33129 Delbrück | Freisprecheinheit für Mobiltelefone (Handys) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL155700B (nl) * | 1971-12-08 | 1978-01-16 | Philips Nv | Luidsprekende telefooninrichting. |
| DE2607016A1 (de) * | 1976-02-19 | 1977-08-25 | Manfred Lau | Elektronischer telefonverstaerker |
| FR2376576A1 (fr) * | 1976-12-31 | 1978-07-28 | Girard J Philippe | Perfectionnements aux postes telephoniques a mains libres |
-
1980
- 1980-12-23 DD DD22657380A patent/DD154419A1/de not_active IP Right Cessation
-
1981
- 1981-07-27 DE DE19813129506 patent/DE3129506A1/de active Granted
- 1981-10-14 CS CS817525A patent/CS247107B1/cs unknown
- 1981-10-22 HU HU307581A patent/HU187462B/hu not_active IP Right Cessation
- 1981-12-22 CU CU35575A patent/CU21478A3/es unknown
- 1981-12-22 RO RO106073A patent/RO85240B/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| HU187462B (en) | 1986-01-28 |
| DE3129506C2 (cs) | 1989-09-07 |
| DE3129506A1 (de) | 1982-07-01 |
| RO85240B (ro) | 1984-10-30 |
| CU21478A3 (en) | 1987-10-12 |
| RO85240A (ro) | 1984-09-29 |
| CS752581A1 (en) | 1985-06-13 |
| DD154419A1 (de) | 1982-03-17 |
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