SE316804B - - Google Patents

Info

Publication number
SE316804B
SE316804B SE16307/65A SE1630765A SE316804B SE 316804 B SE316804 B SE 316804B SE 16307/65 A SE16307/65 A SE 16307/65A SE 1630765 A SE1630765 A SE 1630765A SE 316804 B SE316804 B SE 316804B
Authority
SE
Sweden
Prior art keywords
line
transistor
signals
microphone
circuit
Prior art date
Application number
SE16307/65A
Other languages
English (en)
Inventor
L Skoog
O Lindgren
G Kjellander
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to NL136415D priority Critical patent/NL136415C/xx
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE16307/65A priority patent/SE316804B/xx
Priority to GB49566/66A priority patent/GB1119268A/en
Priority to US593188A priority patent/US3513259A/en
Priority to FR86095A priority patent/FR1503218A/fr
Priority to NL6617469A priority patent/NL6617469A/xx
Priority to DE19661487228 priority patent/DE1487228A1/de
Publication of SE316804B publication Critical patent/SE316804B/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits
    • H04M1/585—Anti-side-tone circuits implemented without inductive element
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Amplifiers (AREA)
  • Circuit For Audible Band Transducer (AREA)
SE16307/65A 1965-12-16 1965-12-16 SE316804B (pt)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL136415D NL136415C (pt) 1965-12-16
SE16307/65A SE316804B (pt) 1965-12-16 1965-12-16
GB49566/66A GB1119268A (en) 1965-12-16 1966-11-04 Hybrid circuit
US593188A US3513259A (en) 1965-12-16 1966-11-09 Hybrid circuit with electron valve separating element
FR86095A FR1503218A (fr) 1965-12-16 1966-12-05 Circuit de séparation
NL6617469A NL6617469A (pt) 1965-12-16 1966-12-13
DE19661487228 DE1487228A1 (de) 1965-12-16 1966-12-13 Gabelschaltung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE16307/65A SE316804B (pt) 1965-12-16 1965-12-16

Publications (1)

Publication Number Publication Date
SE316804B true SE316804B (pt) 1969-11-03

Family

ID=20302033

Family Applications (1)

Application Number Title Priority Date Filing Date
SE16307/65A SE316804B (pt) 1965-12-16 1965-12-16

Country Status (6)

Country Link
US (1) US3513259A (pt)
DE (1) DE1487228A1 (pt)
FR (1) FR1503218A (pt)
GB (1) GB1119268A (pt)
NL (2) NL6617469A (pt)
SE (1) SE316804B (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404344A1 (fr) * 1977-09-27 1979-04-20 Jeumont Schneider Equipement electronique d'abonne, a circuit de conversion deux fils-quatre fils, pour central telephonique
DE2840250C2 (de) * 1978-09-15 1983-01-20 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung für eine leitungsgespeiste Lautfernsprechstation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041411A (en) * 1958-06-10 1962-06-26 Donald C Beatty Automatic, circuit-condition-change-responsive, on-off control for loudspeaking telephone and the like
US3075045A (en) * 1960-08-29 1963-01-22 Bell Telephone Labor Inc Speakerphone

Also Published As

Publication number Publication date
US3513259A (en) 1970-05-19
NL6617469A (pt) 1967-06-19
GB1119268A (en) 1968-07-10
FR1503218A (fr) 1967-11-24
NL136415C (pt)
DE1487228A1 (de) 1969-04-03

Similar Documents

Publication Publication Date Title
GB1479008A (en) Amplifier circuit
ES449644A1 (es) Un dispositivo electronico para recibir y transmitir senalestelefonicas.
GB1212752A (en) Telephone subset with resistive hybrid network
US3789155A (en) Side-tone reducing circuit for a telephone subscribers instrument
GB1242312A (en) Improvements in or relating to telephone speech circuits
GB1098979A (en) Improvements in or relating to high frequency transistor amplifiers
GB1119268A (en) Hybrid circuit
GB1431433A (en) Circuits for providing an output to a line
GB1257490A (pt)
GB1334163A (en) Telephone circuits utilizing active elements
GB1325784A (en) Telephone circuits utilizing active elements
GB1223053A (en) Improvements in or relating to balanced to unbalanced coupling circuits
FR2312145A1 (fr) Circuit pour servir d'interface entre deux parties d'une voie de communication
GB1535823A (en) Amplifier circuit
GB1006148A (en) A transistor amplifier
GB655927A (en) Improved telephone substation apparatus
GB1119569A (en) Improvements in and relating to electric signal apparatus
GB773850A (en) Improvements in or relating to telephone set circuits
GB787824A (en) Improvements in or relating to circuits including electric signal transmission linesin communication systems
GB1246381A (en) Improvements in or relating to telephone instrument circuit arrangements
GB936756A (en) Improvements in or relating to loudspeaking telephone systems
KR920006210Y1 (ko) 스테레오 효과 증대회로
GB1124351A (en) Improvements in or relating to electric circuits
GB1350142A (en) Controllable attenuator
GB730558A (en) Improvements in or relating to output control circuits for electrical transmission networks