JPS61225933A - ３周波ト−ン信号検出用基準信号発生回路 - Google Patents

３周波ト−ン信号検出用基準信号発生回路

Info

Publication number
JPS61225933A
JPS61225933A JP60065065A JP6506585A JPS61225933A JP S61225933 A JPS61225933 A JP S61225933A JP 60065065 A JP60065065 A JP 60065065A JP 6506585 A JP6506585 A JP 6506585A JP S61225933 A JPS61225933 A JP S61225933A
Authority
JP
Japan
Prior art keywords
signal
circuit
pulse
frequency
signals
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.)
Granted
Application number
JP60065065A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0369458B2 (enrdf_load_stackoverflow
Inventor
Yoshifumi Toda
戸田　善文
Taku Mikami
卓 三上
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP60065065A priority Critical patent/JPS61225933A/ja
Publication of JPS61225933A publication Critical patent/JPS61225933A/ja
Publication of JPH0369458B2 publication Critical patent/JPH0369458B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manipulation Of Pulses (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Mobile Radio Communication Systems (AREA)
JP60065065A 1985-03-30 1985-03-30 ３周波ト−ン信号検出用基準信号発生回路 Granted JPS61225933A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60065065A JPS61225933A (ja) 1985-03-30 1985-03-30 ３周波ト−ン信号検出用基準信号発生回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60065065A JPS61225933A (ja) 1985-03-30 1985-03-30 ３周波ト−ン信号検出用基準信号発生回路

Publications (2)

Publication Number Publication Date
JPS61225933A true JPS61225933A (ja) 1986-10-07
JPH0369458B2 JPH0369458B2 (enrdf_load_stackoverflow) 1991-11-01

Family

ID=13276178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60065065A Granted JPS61225933A (ja) 1985-03-30 1985-03-30 ３周波ト−ン信号検出用基準信号発生回路

Country Status (1)

Country Link
JP (1) JPS61225933A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04505526A (ja) * 1989-04-14 1992-09-24 マーティン・エイ・シュワルツ・リボカブル・（リビング）・１９９１・トラスト アナログ／デジタル音声記憶セルラ電話
USRE37618E1 (en) 1987-07-24 2002-04-02 Richard J. Helferich Analog/digital data storage system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548451A (en) * 1977-06-21 1979-01-22 Citizen Watch Co Ltd Digital-type frequency adjusting circuit
JPS59201518A (ja) * 1983-04-28 1984-11-15 Shinko Electric Co Ltd ２相発振回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548451A (en) * 1977-06-21 1979-01-22 Citizen Watch Co Ltd Digital-type frequency adjusting circuit
JPS59201518A (ja) * 1983-04-28 1984-11-15 Shinko Electric Co Ltd ２相発振回路

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE37618E1 (en) 1987-07-24 2002-04-02 Richard J. Helferich Analog/digital data storage system
JPH04505526A (ja) * 1989-04-14 1992-09-24 マーティン・エイ・シュワルツ・リボカブル・（リビング）・１９９１・トラスト アナログ／デジタル音声記憶セルラ電話

Also Published As

Publication number Publication date
JPH0369458B2 (enrdf_load_stackoverflow) 1991-11-01

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