CA938345A - Frequency determining network - Google Patents

Frequency determining network

Info

Publication number
CA938345A
CA938345A CA133431A CA133431A CA938345A CA 938345 A CA938345 A CA 938345A CA 133431 A CA133431 A CA 133431A CA 133431 A CA133431 A CA 133431A CA 938345 A CA938345 A CA 938345A
Authority
CA
Canada
Prior art keywords
frequency determining
determining network
network
frequency
determining
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
CA133431A
Other languages
English (en)
Other versions
CA133431S (en
Inventor
H. Matthews Terence
N. Gold Charles
C. J. Cowpland Michael
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.)
Microsystems International Ltd
Original Assignee
Microsystems International 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
Priority to BE791353D priority Critical patent/BE791353A/fr
Application filed by Microsystems International Ltd filed Critical Microsystems International Ltd
Priority to CA133431A priority patent/CA938345A/en
Priority to IL40787A priority patent/IL40787A/xx
Priority to NL7217681A priority patent/NL7217681A/xx
Priority to IT34047/72A priority patent/IT973344B/it
Priority to DE2301227A priority patent/DE2301227A1/de
Priority to AU51121/73A priority patent/AU5112173A/en
Priority to FR7301603A priority patent/FR2169075A1/fr
Priority to JP48009819A priority patent/JPS4885009A/ja
Application granted granted Critical
Publication of CA938345A publication Critical patent/CA938345A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Filters And Equalizers (AREA)
CA133431A 1972-01-28 1972-01-28 Frequency determining network Expired CA938345A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
BE791353D BE791353A (fr) 1972-01-28 Reseau determinateur de frequence
CA133431A CA938345A (en) 1972-01-28 1972-01-28 Frequency determining network
IL40787A IL40787A (en) 1972-01-28 1972-11-09 Frequency determining networks
NL7217681A NL7217681A (fr) 1972-01-28 1972-12-27
IT34047/72A IT973344B (it) 1972-01-28 1972-12-29 Rete di determinazione della frequenza
DE2301227A DE2301227A1 (de) 1972-01-28 1973-01-11 Frequenzbestimmender widerstandszweig bei einer oszillatorschaltungsanordnung
AU51121/73A AU5112173A (en) 1972-01-28 1973-01-15 Frequency determining network
FR7301603A FR2169075A1 (fr) 1972-01-28 1973-01-17
JP48009819A JPS4885009A (fr) 1972-01-28 1973-01-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA133431A CA938345A (en) 1972-01-28 1972-01-28 Frequency determining network

Publications (1)

Publication Number Publication Date
CA938345A true CA938345A (en) 1973-12-11

Family

ID=4092175

Family Applications (1)

Application Number Title Priority Date Filing Date
CA133431A Expired CA938345A (en) 1972-01-28 1972-01-28 Frequency determining network

Country Status (9)

Country Link
JP (1) JPS4885009A (fr)
AU (1) AU5112173A (fr)
BE (1) BE791353A (fr)
CA (1) CA938345A (fr)
DE (1) DE2301227A1 (fr)
FR (1) FR2169075A1 (fr)
IL (1) IL40787A (fr)
IT (1) IT973344B (fr)
NL (1) NL7217681A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3011651A1 (de) * 1980-03-26 1981-10-01 Robert Bosch Gmbh, 7000 Stuttgart Durchstimmbarer oszillator

Also Published As

Publication number Publication date
BE791353A (fr) 1973-03-01
IL40787A0 (en) 1973-01-30
IL40787A (en) 1975-05-22
IT973344B (it) 1974-06-10
JPS4885009A (fr) 1973-11-12
FR2169075A1 (fr) 1973-09-07
AU5112173A (en) 1974-07-18
DE2301227A1 (de) 1973-08-23
NL7217681A (fr) 1973-07-31

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