CA1048184A - Pulse duration correction circuit - Google Patents

Pulse duration correction circuit

Info

Publication number
CA1048184A
CA1048184A CA265,382A CA265382A CA1048184A CA 1048184 A CA1048184 A CA 1048184A CA 265382 A CA265382 A CA 265382A CA 1048184 A CA1048184 A CA 1048184A
Authority
CA
Canada
Prior art keywords
circuit
pulses
input
incoming
comparator
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
CA265,382A
Other languages
English (en)
French (fr)
Inventor
Inanc Kayalioglu
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to CA265,382A priority Critical patent/CA1048184A/en
Priority to GB37752/77A priority patent/GB1592770A/en
Priority to DE19772741843 priority patent/DE2741843A1/de
Priority to NL7710179A priority patent/NL7710179A/xx
Priority to IT28224/77A priority patent/IT1087728B/it
Priority to JP12157577A priority patent/JPS5360550A/ja
Priority to FR7733797A priority patent/FR2371092A1/fr
Priority to SE7712747A priority patent/SE7712747L/xx
Application granted granted Critical
Publication of CA1048184A publication Critical patent/CA1048184A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/156—Arrangements in which a continuous pulse train is transformed into a train having a desired pattern
    • H03K5/1565—Arrangements in which a continuous pulse train is transformed into a train having a desired pattern the output pulses having a constant duty cycle
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/13—Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of DC pulses
    • H04Q1/36—Pulse-correcting arrangements, e.g. for reducing effects due to interference

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Manipulation Of Pulses (AREA)
  • Networks Using Active Elements (AREA)
  • Pulse Circuits (AREA)
CA265,382A 1976-11-10 1976-11-10 Pulse duration correction circuit Expired CA1048184A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CA265,382A CA1048184A (en) 1976-11-10 1976-11-10 Pulse duration correction circuit
GB37752/77A GB1592770A (en) 1976-11-10 1977-09-09 Pulse duration standardising circuit
DE19772741843 DE2741843A1 (de) 1976-11-10 1977-09-16 Schaltungsanordnung zur korrektur von impulsdauern
NL7710179A NL7710179A (nl) 1976-11-10 1977-09-16 Impulsduurcorrectieschakeling.
IT28224/77A IT1087728B (it) 1976-11-10 1977-10-03 Circuito per la correzione della durata di impulsi
JP12157577A JPS5360550A (en) 1976-11-10 1977-10-12 Circuit for correcting pulse duration
FR7733797A FR2371092A1 (fr) 1976-11-10 1977-11-09 Circuit de correction de duree d'impulsions
SE7712747A SE7712747L (sv) 1976-11-10 1977-11-10 Korrektionskrets for pulstid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA265,382A CA1048184A (en) 1976-11-10 1976-11-10 Pulse duration correction circuit

Publications (1)

Publication Number Publication Date
CA1048184A true CA1048184A (en) 1979-02-06

Family

ID=4107240

Family Applications (1)

Application Number Title Priority Date Filing Date
CA265,382A Expired CA1048184A (en) 1976-11-10 1976-11-10 Pulse duration correction circuit

Country Status (8)

Country Link
JP (1) JPS5360550A (it)
CA (1) CA1048184A (it)
DE (1) DE2741843A1 (it)
FR (1) FR2371092A1 (it)
GB (1) GB1592770A (it)
IT (1) IT1087728B (it)
NL (1) NL7710179A (it)
SE (1) SE7712747L (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944001A (en) * 1987-06-19 1990-07-24 Comcheq Services Limited Rotary dial pulse receiver

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438380A1 (fr) * 1978-10-06 1980-04-30 Trt Telecom Radio Electr Dispositif pour fournir un signal logique avec un rapport cyclique proche de 0,5 a partir d'un signal logique ayant un rapport cyclique quelconque
US4839920A (en) * 1985-09-30 1989-06-13 Siemens Aktiengesellschaft Method for determining telephone dial pulse parameters independently of subscriber line length
JPS63290046A (ja) * 1987-05-21 1988-11-28 Pioneer Electronic Corp パルス幅ひずみ補正回路
US5227671A (en) * 1992-04-14 1993-07-13 Quantum Corporation Circuit providing equalized duty cycle output
JPH11112304A (ja) * 1997-10-07 1999-04-23 Fujitsu Ltd パルス幅制御論理回路

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944001A (en) * 1987-06-19 1990-07-24 Comcheq Services Limited Rotary dial pulse receiver

Also Published As

Publication number Publication date
IT1087728B (it) 1985-06-04
NL7710179A (nl) 1978-05-12
FR2371092A1 (fr) 1978-06-09
DE2741843A1 (de) 1978-05-11
GB1592770A (en) 1981-07-08
SE7712747L (sv) 1978-05-11
JPS5360550A (en) 1978-05-31

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