GB1386641A - Semiconductor amplifying and rectifying circuit - Google Patents

Semiconductor amplifying and rectifying circuit

Info

Publication number
GB1386641A
GB1386641A GB670072A GB670072A GB1386641A GB 1386641 A GB1386641 A GB 1386641A GB 670072 A GB670072 A GB 670072A GB 670072 A GB670072 A GB 670072A GB 1386641 A GB1386641 A GB 1386641A
Authority
GB
United Kingdom
Prior art keywords
transistors
transistor
circuit
sine
ware
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB670072A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB670072A priority Critical patent/GB1386641A/en
Priority to ZA730753A priority patent/ZA73753B/en
Priority to AU52005/73A priority patent/AU478509B2/en
Priority to CH206173A priority patent/CH549902A/en
Publication of GB1386641A publication Critical patent/GB1386641A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/25—Arrangements for performing computing operations, e.g. operational amplifiers for discontinuous functions, e.g. backlash, dead zone, limiting absolute value or peak value

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

1386641 Pulse circuits; block pulse extraction circuits STANDARD TELEPHONES & CABLES Ltd 14 Feb 1972 6700/72 Headings H3T and H4P A circuit for producing mono-polar signals and thus a sine ware from bilpolar input signals, e.g. to indicate the frequency of pulse time-slots, comprises two transistors receiving the input signals in erect and inverted forms respectively and having a common output coupled to the input of a biased transistor having a resonant circuit at its output. Transistors 1 and 2 are biased from potentiometer 13, 14 via transistor 3 to be normally non-conducting so that only positive and negative portions of the inputsignal above a given amplitude cause one or other of transistors 1 and 2 to conduct and divert current from transistor 3. The resulting pulses cause a tuned circuit 12 to ring and thus to produce the sine ware output at 18. The amplitude of the pulses my be adjusted by varying resistor 11.
GB670072A 1972-02-14 1972-02-14 Semiconductor amplifying and rectifying circuit Expired GB1386641A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB670072A GB1386641A (en) 1972-02-14 1972-02-14 Semiconductor amplifying and rectifying circuit
ZA730753A ZA73753B (en) 1972-02-14 1973-02-02 Semiconductor amplifying and rectifying circuit
AU52005/73A AU478509B2 (en) 1972-02-14 1973-02-08 Semiconductor amplifying, and rectifying circuit
CH206173A CH549902A (en) 1972-02-14 1973-02-14 CIRCUIT ARRANGEMENT FOR AMPLIFICATION AND EQUALIZATION OF A BIPOLAR SIGNAL.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB670072A GB1386641A (en) 1972-02-14 1972-02-14 Semiconductor amplifying and rectifying circuit

Publications (1)

Publication Number Publication Date
GB1386641A true GB1386641A (en) 1975-03-12

Family

ID=9819201

Family Applications (1)

Application Number Title Priority Date Filing Date
GB670072A Expired GB1386641A (en) 1972-02-14 1972-02-14 Semiconductor amplifying and rectifying circuit

Country Status (3)

Country Link
CH (1) CH549902A (en)
GB (1) GB1386641A (en)
ZA (1) ZA73753B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126847A (en) * 1982-07-29 1984-03-28 Standard Telephones Cables Ltd Clock extraction from pcm signal
GB2151884A (en) * 1983-12-16 1985-07-24 Standard Telephones Cables Ltd Timing extraction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126847A (en) * 1982-07-29 1984-03-28 Standard Telephones Cables Ltd Clock extraction from pcm signal
US4736120A (en) * 1983-12-12 1988-04-05 Stc Plc Timing extraction circuit
GB2151884A (en) * 1983-12-16 1985-07-24 Standard Telephones Cables Ltd Timing extraction

Also Published As

Publication number Publication date
ZA73753B (en) 1973-10-31
CH549902A (en) 1974-05-31
AU5200573A (en) 1974-08-08

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Legal Events

Date Code Title Description
PS Patent sealed
728C Application made for restoration (sect. 28/1977)
PCNP Patent ceased through non-payment of renewal fee
728A Order made restoring the patent (sect. 28/1977)
PE20 Patent expired after termination of 20 years