JPS5732166A - Multifrequency signal receiver - Google Patents

Multifrequency signal receiver

Info

Publication number
JPS5732166A
JPS5732166A JP10807780A JP10807780A JPS5732166A JP S5732166 A JPS5732166 A JP S5732166A JP 10807780 A JP10807780 A JP 10807780A JP 10807780 A JP10807780 A JP 10807780A JP S5732166 A JPS5732166 A JP S5732166A
Authority
JP
Japan
Prior art keywords
counter
circuit
reset
pulse
signal
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
JP10807780A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6331141B2 (enExample
Inventor
Harutomo Narita
Teruji Fujii
Shiro Kikuchi
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.)
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co 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 Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP10807780A priority Critical patent/JPS5732166A/ja
Publication of JPS5732166A publication Critical patent/JPS5732166A/ja
Publication of JPS6331141B2 publication Critical patent/JPS6331141B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP10807780A 1980-08-06 1980-08-06 Multifrequency signal receiver Granted JPS5732166A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10807780A JPS5732166A (en) 1980-08-06 1980-08-06 Multifrequency signal receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10807780A JPS5732166A (en) 1980-08-06 1980-08-06 Multifrequency signal receiver

Publications (2)

Publication Number Publication Date
JPS5732166A true JPS5732166A (en) 1982-02-20
JPS6331141B2 JPS6331141B2 (enExample) 1988-06-22

Family

ID=14475284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10807780A Granted JPS5732166A (en) 1980-08-06 1980-08-06 Multifrequency signal receiver

Country Status (1)

Country Link
JP (1) JPS5732166A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6113793A (ja) * 1984-06-28 1986-01-22 Nec Corp プツシユボタン信号受信器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6113793A (ja) * 1984-06-28 1986-01-22 Nec Corp プツシユボタン信号受信器

Also Published As

Publication number Publication date
JPS6331141B2 (enExample) 1988-06-22

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