NO802470L - Reguleringskrets og elektronisk telefonkrets utstyrt med samme - Google Patents

Reguleringskrets og elektronisk telefonkrets utstyrt med samme

Info

Publication number
NO802470L
NO802470L NO802470A NO802470A NO802470L NO 802470 L NO802470 L NO 802470L NO 802470 A NO802470 A NO 802470A NO 802470 A NO802470 A NO 802470A NO 802470 L NO802470 L NO 802470L
Authority
NO
Norway
Prior art keywords
circuits
same
electronic telephone
control circuits
control
Prior art date
Application number
NO802470A
Other languages
English (en)
Other versions
NO153512B (no
NO153512C (no
Inventor
Peter Fred Blomley
Original Assignee
Int Standard Electric Corp
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
Application filed by Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of NO802470L publication Critical patent/NO802470L/no
Publication of NO153512B publication Critical patent/NO153512B/no
Publication of NO153512C publication Critical patent/NO153512C/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/76—Compensating for differences in line impedance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6025—Substation equipment, e.g. for use by subscribers including speech amplifiers implemented as integrated speech networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Amplifiers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephone Function (AREA)
  • Selective Calling Equipment (AREA)
NO802470A 1979-08-31 1980-08-20 Reguleringskrets for shuntede spenninger, og anvendelse av denne i elektronisk telefonkrets. NO153512C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7930246A GB2057815B (en) 1979-08-31 1979-08-31 Electronic telephone circuit

Publications (3)

Publication Number Publication Date
NO802470L true NO802470L (no) 1981-03-02
NO153512B NO153512B (no) 1985-12-23
NO153512C NO153512C (no) 1986-04-09

Family

ID=10507528

Family Applications (1)

Application Number Title Priority Date Filing Date
NO802470A NO153512C (no) 1979-08-31 1980-08-20 Reguleringskrets for shuntede spenninger, og anvendelse av denne i elektronisk telefonkrets.

Country Status (31)

Country Link
US (1) US4347407A (no)
JP (1) JPS5636254A (no)
KR (1) KR830001772B1 (no)
AR (1) AR220987A1 (no)
AT (1) AT384917B (no)
AU (1) AU538701B2 (no)
BE (1) BE885009A (no)
BR (1) BR8005521A (no)
CA (1) CA1150868A (no)
CH (1) CH652545A5 (no)
DD (1) DD153302A5 (no)
DE (1) DE3027452C2 (no)
DK (1) DK369480A (no)
FI (1) FI73342C (no)
FR (1) FR2464594B1 (no)
GB (1) GB2057815B (no)
HK (1) HK20587A (no)
HU (1) HU183146B (no)
IL (1) IL60222A (no)
IN (1) IN152651B (no)
IT (1) IT1209261B (no)
MX (1) MX147657A (no)
NL (1) NL8004833A (no)
NO (1) NO153512C (no)
NZ (1) NZ194800A (no)
PH (1) PH16267A (no)
PT (1) PT71752B (no)
SE (1) SE448662B (no)
SU (1) SU1303047A3 (no)
YU (1) YU40882B (no)
ZA (1) ZA803828B (no)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534237B1 (fr) * 1982-10-12 1987-10-23 Krupp Gmbh Grue roulante de grande force portante a fleche extensible, notamment a fleche telescopique
GB8317706D0 (en) * 1983-06-29 1983-08-03 Standard Telephones Cables Ltd Telephone subsets
US5206459A (en) * 1991-08-21 1993-04-27 Champlain Cable Corporation Conductive polymeric shielding materials and articles fabricated therefrom

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1638014A1 (de) * 1951-01-28 1971-06-16 Itt Ind Gmbh Deutsche Monolithisch integrierte Parallelregelschaltung
GB944762A (en) * 1961-03-20 1963-12-18 Ass Elect Ind Improvements relating to self-regulating two-terminal impedance networks and their use in telephone system substation circuits
US3251951A (en) * 1962-02-26 1966-05-17 Philips Corp Circuit for automatic adjustment of impedance of a telephone loop
NL7402575A (nl) * 1974-02-26 1975-08-28 Philips Nv Elektronisch telefoontoestel.
CA1032221A (en) * 1974-06-14 1978-05-30 Mitel Canada Limited Telephone line impedance regulator
GB2034555B (en) * 1978-11-08 1983-03-02 Standard Telephones Cables Ltd Bridge amplifier

Also Published As

Publication number Publication date
NO153512B (no) 1985-12-23
DD153302A5 (de) 1981-12-30
FR2464594A1 (fr) 1981-03-06
IT8024352A0 (it) 1980-08-29
DK369480A (da) 1981-03-01
HU183146B (en) 1984-04-28
YU217380A (en) 1982-10-31
PT71752A (en) 1980-09-01
KR830001772B1 (ko) 1983-09-03
NZ194800A (en) 1983-09-30
FR2464594B1 (fr) 1986-04-18
MX147657A (es) 1982-12-30
AR220987A1 (es) 1980-12-15
IN152651B (no) 1984-03-03
JPH0145262B2 (no) 1989-10-03
HK20587A (en) 1987-03-13
GB2057815B (en) 1983-08-10
BE885009A (nl) 1981-03-02
AU6166680A (en) 1981-03-05
NO153512C (no) 1986-04-09
NL8004833A (nl) 1981-03-03
CA1150868A (en) 1983-07-26
SU1303047A3 (ru) 1987-04-07
US4347407A (en) 1982-08-31
BR8005521A (pt) 1981-03-17
FI802688A7 (fi) 1981-03-01
JPS5636254A (en) 1981-04-09
SE448662B (sv) 1987-03-09
AT384917B (de) 1988-01-25
DE3027452A1 (de) 1981-03-12
ATA437580A (de) 1987-06-15
PT71752B (en) 1981-06-29
KR830004003A (ko) 1983-06-30
CH652545A5 (de) 1985-11-15
IT1209261B (it) 1989-07-16
SE8006004L (sv) 1981-03-01
GB2057815A (en) 1981-04-01
FI73342C (fi) 1987-09-10
IL60222A (en) 1983-05-15
FI73342B (fi) 1987-05-29
DE3027452C2 (de) 1987-02-19
IL60222A0 (en) 1980-09-16
YU40882B (en) 1986-08-31
ZA803828B (en) 1981-07-29
AU538701B2 (en) 1984-08-23
PH16267A (en) 1983-08-23

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