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JPS54558A - Modulation and demodulation system - Google Patents

Modulation and demodulation system

Info

Publication number
JPS54558A
JPS54558A JP6468777A JP6468777A JPS54558A JP S54558 A JPS54558 A JP S54558A JP 6468777 A JP6468777 A JP 6468777A JP 6468777 A JP6468777 A JP 6468777A JP S54558 A JPS54558 A JP S54558A
Authority
JP
Japan
Prior art keywords
frequency
modulation
demodulation system
enabling
alter
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.)
Pending
Application number
JP6468777A
Other languages
Japanese (ja)
Inventor
Koichi Kondo
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP6468777A priority Critical patent/JPS54558A/en
Publication of JPS54558A publication Critical patent/JPS54558A/en
Pending legal-status Critical Current

Links

Landscapes

  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transceivers (AREA)

Abstract

PURPOSE: To alter the modulated frequency without changing the circuit, by enabling arbitrary alteration for the subcarrier frequency and the width of frequency shift at the modulation side, and by simply enabling to change the clock frequency following to the carrier input frequency at the reception side, even if it is changed.
COPYRIGHT: (C)1979,JPO&Japio
JP6468777A 1977-06-03 1977-06-03 Modulation and demodulation system Pending JPS54558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6468777A JPS54558A (en) 1977-06-03 1977-06-03 Modulation and demodulation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6468777A JPS54558A (en) 1977-06-03 1977-06-03 Modulation and demodulation system

Publications (1)

Publication Number Publication Date
JPS54558A true JPS54558A (en) 1979-01-05

Family

ID=13265305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6468777A Pending JPS54558A (en) 1977-06-03 1977-06-03 Modulation and demodulation system

Country Status (1)

Country Link
JP (1) JPS54558A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63312079A (en) * 1987-06-12 1988-12-20 ヘルフエル・ウント・コンパニ−・コマンデイ−トゲゼルシヤフト Power screw driving head section
US20080276113A1 (en) * 2007-05-01 2008-11-06 Canon Kabushiki Kaisha Electronic apparatus and method for controlling same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63312079A (en) * 1987-06-12 1988-12-20 ヘルフエル・ウント・コンパニ−・コマンデイ−トゲゼルシヤフト Power screw driving head section
JPH0523914B2 (en) * 1987-06-12 1993-04-06 Herufueru Unto Co Kg
US20080276113A1 (en) * 2007-05-01 2008-11-06 Canon Kabushiki Kaisha Electronic apparatus and method for controlling same
US8312310B2 (en) * 2007-05-01 2012-11-13 Canon Kabushiki Kaisha Apparatus and method for changing clock frequency and modulation method based on current state

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