JPS6120196B2 - - Google Patents

Info

Publication number
JPS6120196B2
JPS6120196B2 JP52025729A JP2572977A JPS6120196B2 JP S6120196 B2 JPS6120196 B2 JP S6120196B2 JP 52025729 A JP52025729 A JP 52025729A JP 2572977 A JP2572977 A JP 2572977A JP S6120196 B2 JPS6120196 B2 JP S6120196B2
Authority
JP
Japan
Prior art keywords
cosω
frequency
multiplier
signal
frequency 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.)
Expired
Application number
JP52025729A
Other languages
English (en)
Japanese (ja)
Other versions
JPS53110309A (en
Inventor
Kenji Nakayama
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.)
NEC Corp
Original Assignee
Nippon Electric 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 Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP2572977A priority Critical patent/JPS53110309A/ja
Publication of JPS53110309A publication Critical patent/JPS53110309A/ja
Publication of JPS6120196B2 publication Critical patent/JPS6120196B2/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)
JP2572977A 1977-03-08 1977-03-08 Multi-frequency signal receiving system Granted JPS53110309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2572977A JPS53110309A (en) 1977-03-08 1977-03-08 Multi-frequency signal receiving system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2572977A JPS53110309A (en) 1977-03-08 1977-03-08 Multi-frequency signal receiving system

Publications (2)

Publication Number Publication Date
JPS53110309A JPS53110309A (en) 1978-09-27
JPS6120196B2 true JPS6120196B2 (enrdf_load_stackoverflow) 1986-05-21

Family

ID=12173883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2572977A Granted JPS53110309A (en) 1977-03-08 1977-03-08 Multi-frequency signal receiving system

Country Status (1)

Country Link
JP (1) JPS53110309A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019151171A1 (ja) 2018-01-30 2019-08-08 大日本印刷株式会社 液晶調光装置およびその製造方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019151171A1 (ja) 2018-01-30 2019-08-08 大日本印刷株式会社 液晶調光装置およびその製造方法
KR20200111701A (ko) 2018-01-30 2020-09-29 다이니폰 인사츠 가부시키가이샤 액정 조광 장치 및 그 제조 방법

Also Published As

Publication number Publication date
JPS53110309A (en) 1978-09-27

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