HK49787A - Bridge amplifier - Google Patents

Bridge amplifier

Info

Publication number
HK49787A
HK49787A HK497/87A HK49787A HK49787A HK 49787 A HK49787 A HK 49787A HK 497/87 A HK497/87 A HK 497/87A HK 49787 A HK49787 A HK 49787A HK 49787 A HK49787 A HK 49787A
Authority
HK
Hong Kong
Prior art keywords
bridge amplifier
bridge
amplifier
Prior art date
Application number
HK497/87A
Other languages
English (en)
Inventor
Peter Fred Blomley
Original Assignee
Stc Plc
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 Stc Plc filed Critical Stc Plc
Publication of HK49787A publication Critical patent/HK49787A/xx

Links

Classifications

    • 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)
  • Amplifiers (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
HK497/87A 1978-11-08 1987-06-25 Bridge amplifier HK49787A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7843602A GB2034555B (en) 1978-11-08 1978-11-08 Bridge amplifier

Publications (1)

Publication Number Publication Date
HK49787A true HK49787A (en) 1987-07-03

Family

ID=10500875

Family Applications (1)

Application Number Title Priority Date Filing Date
HK497/87A HK49787A (en) 1978-11-08 1987-06-25 Bridge amplifier

Country Status (36)

Country Link
US (1) US4286123A (fr)
JP (1) JPS5566153A (fr)
AR (1) AR217354A1 (fr)
AT (1) AT376090B (fr)
AU (1) AU518350B2 (fr)
BE (1) BE879902A (fr)
BR (1) BR7901163A (fr)
CA (1) CA1149980A (fr)
CH (1) CH647114A5 (fr)
DD (1) DD141383A5 (fr)
DE (1) DE2856072C3 (fr)
DK (1) DK101079A (fr)
EG (1) EG14801A (fr)
ES (1) ES476608A1 (fr)
FI (1) FI790944A (fr)
FR (1) FR2441301A1 (fr)
GB (1) GB2034555B (fr)
GR (1) GR66659B (fr)
HK (1) HK49787A (fr)
HU (1) HU177459B (fr)
IL (1) IL56530A0 (fr)
IN (1) IN150998B (fr)
IT (1) IT1192686B (fr)
MX (1) MX146725A (fr)
NL (1) NL7812201A (fr)
NO (1) NO145811C (fr)
NZ (1) NZ189634A (fr)
PH (1) PH16061A (fr)
PL (1) PL125280B1 (fr)
PT (1) PT69609A (fr)
RO (1) RO80675A (fr)
SE (2) SE437452B (fr)
SU (1) SU1088677A3 (fr)
TR (1) TR20841A (fr)
YU (1) YU305478A (fr)
ZA (1) ZA79281B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2057815B (en) * 1979-08-31 1983-08-10 Standard Telephones Cables Ltd Electronic telephone circuit
US4536888A (en) * 1981-08-21 1985-08-20 Plantronics, Inc. Voice communication instrument system with line-powered receiver conditioning circuit
NL8304312A (nl) * 1983-12-15 1985-07-01 Philips Nv Telefooncircuit met klasse-b versterker.
JP3404848B2 (ja) * 1993-12-21 2003-05-12 ソニー株式会社 半導体装置
PL443367A1 (pl) * 2022-12-30 2024-01-29 Główny Instytut Górnictwa Polimerobeton oraz sposób jego otrzymywania

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175050A (en) * 1960-03-21 1965-03-23 Nat Company Inc Bi-directional signal circuit
US3238310A (en) * 1961-02-13 1966-03-01 Rca Corp Bidirectional amplifiers
US3359378A (en) * 1964-09-28 1967-12-19 Sanders Associates Inc Two-way amplifier
US3529099A (en) * 1967-05-10 1970-09-15 Itt Telephone subset with resistive hybrid network
US3573402A (en) * 1969-03-25 1971-04-06 Lorain Prod Corp Bidirectional additive amplifier
NL6916988A (fr) * 1969-11-11 1971-05-13
NL7200294A (fr) * 1972-01-08 1973-07-10
NL7307296A (fr) * 1973-05-25 1974-11-27
US3882274A (en) * 1974-02-28 1975-05-06 Regents State Of Florida Board Bidirectional digital amplifier
US4004091A (en) * 1975-06-26 1977-01-18 Motorola, Inc. Bidirectional line driver
DE2536201C2 (de) * 1975-08-13 1982-06-03 Standard Elektrik Lorenz Ag, 7000 Stuttgart Schaltungsanordnung für Fernmeldeanlagen insbesondere für Fernsprechapparate zur Abgabe von Wählimpulsen mit einem Transistor

Also Published As

Publication number Publication date
BE879902A (nl) 1980-05-08
YU305478A (en) 1983-04-30
GR66659B (fr) 1981-04-07
AR217354A1 (es) 1980-03-14
AU518350B2 (en) 1981-09-24
NO145811C (no) 1982-06-09
ATA922178A (de) 1984-02-15
JPH0228943B2 (fr) 1990-06-27
PT69609A (en) 1979-06-01
ES476608A1 (es) 1979-12-16
HU177459B (en) 1981-10-28
GB2034555A (en) 1980-06-04
RO80675A (fr) 1983-02-01
BR7901163A (pt) 1980-10-29
DE2856072C3 (de) 1986-10-23
DE2856072A1 (de) 1980-05-14
SE8404228D0 (sv) 1984-08-24
MX146725A (es) 1982-08-03
TR20841A (tr) 1982-10-19
FR2441301A1 (fr) 1980-06-06
EG14801A (en) 1985-03-31
AT376090B (de) 1984-10-10
CH647114A5 (de) 1984-12-28
IT1192686B (it) 1988-05-04
IN150998B (fr) 1983-02-12
FR2441301B1 (fr) 1983-12-30
NL7812201A (nl) 1980-05-12
JPS5566153A (en) 1980-05-19
CA1149980A (fr) 1983-07-12
AU4264278A (en) 1980-05-15
SE8404228L (sv) 1984-08-24
PL125280B1 (en) 1983-04-30
PH16061A (en) 1983-06-09
NZ189634A (en) 1981-05-15
NO145811B (no) 1982-02-22
GB2034555B (en) 1983-03-02
IL56530A0 (en) 1979-03-12
FI790944A (fi) 1980-05-09
PL213320A1 (fr) 1980-05-19
SE437452B (sv) 1985-02-25
US4286123A (en) 1981-08-25
SE7902675L (sv) 1980-05-09
NO784313L (no) 1980-05-09
ZA79281B (en) 1980-01-30
SU1088677A3 (ru) 1984-04-23
DE2856072B2 (de) 1980-08-28
IT7919775A0 (it) 1979-02-01
DD141383A5 (de) 1980-04-23
DK101079A (da) 1980-05-09

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