JPS51120110A - Band compression and modulation system - Google Patents

Band compression and modulation system

Info

Publication number
JPS51120110A
JPS51120110A JP4499975A JP4499975A JPS51120110A JP S51120110 A JPS51120110 A JP S51120110A JP 4499975 A JP4499975 A JP 4499975A JP 4499975 A JP4499975 A JP 4499975A JP S51120110 A JPS51120110 A JP S51120110A
Authority
JP
Japan
Prior art keywords
band compression
modulation system
compression
band
high quality
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
JP4499975A
Other languages
Japanese (ja)
Other versions
JPS547656B2 (en
Inventor
Kankou Yuuki
Kazuo Kobayashi
Yutaka Suzuki
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
Original Assignee
Nippon Telegraph and Telephone Corp
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 filed Critical Nippon Telegraph and Telephone Corp
Priority to JP4499975A priority Critical patent/JPS51120110A/en
Priority to US05/596,539 priority patent/US4166923A/en
Priority to GB29773/75A priority patent/GB1519972A/en
Priority to DE2532287A priority patent/DE2532287C2/en
Priority to FR7522476A priority patent/FR2279278A1/en
Publication of JPS51120110A publication Critical patent/JPS51120110A/en
Publication of JPS547656B2 publication Critical patent/JPS547656B2/ja
Priority to US06/029,502 priority patent/US4217467A/en
Granted legal-status Critical Current

Links

Landscapes

  • Facsimile Image Signal Circuits (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

PURPOSE: To obtain a high quality band compression characteristic with a simple circuit.
COPYRIGHT: (C)1976,JPO&Japio
JP4499975A 1974-07-19 1975-04-12 Band compression and modulation system Granted JPS51120110A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP4499975A JPS51120110A (en) 1975-04-12 1975-04-12 Band compression and modulation system
US05/596,539 US4166923A (en) 1974-07-19 1975-07-16 Amplitude- and periodic phase-modulation transmission system
GB29773/75A GB1519972A (en) 1974-07-19 1975-07-16 Data transmission system
DE2532287A DE2532287C2 (en) 1974-07-19 1975-07-18 Transmission system for unipolar signals
FR7522476A FR2279278A1 (en) 1974-07-19 1975-07-18 TRANSMISSION SYSTEM, BY MODULATION OF A CARRIER, OF A UNIPOLAR SIGNAL TRAIN
US06/029,502 US4217467A (en) 1974-07-19 1979-04-12 Amplitude and periodic phase modulation transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4499975A JPS51120110A (en) 1975-04-12 1975-04-12 Band compression and modulation system

Publications (2)

Publication Number Publication Date
JPS51120110A true JPS51120110A (en) 1976-10-21
JPS547656B2 JPS547656B2 (en) 1979-04-09

Family

ID=12707109

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4499975A Granted JPS51120110A (en) 1974-07-19 1975-04-12 Band compression and modulation system

Country Status (1)

Country Link
JP (1) JPS51120110A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4983576A (en) * 1972-12-20 1974-08-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4983576A (en) * 1972-12-20 1974-08-12

Also Published As

Publication number Publication date
JPS547656B2 (en) 1979-04-09

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