JPS545693A - Information communication system - Google Patents

Information communication system

Info

Publication number
JPS545693A
JPS545693A JP7237377A JP7237377A JPS545693A JP S545693 A JPS545693 A JP S545693A JP 7237377 A JP7237377 A JP 7237377A JP 7237377 A JP7237377 A JP 7237377A JP S545693 A JPS545693 A JP S545693A
Authority
JP
Japan
Prior art keywords
communication system
information communication
modulation signal
transmission
information
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
JP7237377A
Other languages
Japanese (ja)
Inventor
Tadashi Yoshimura
Toshio Abiko
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP7237377A priority Critical patent/JPS545693A/en
Publication of JPS545693A publication Critical patent/JPS545693A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To secure the transmission of two units of information with one transmitter by using the double modulation signal for the main information transmission and the single modulation signal for the secondary information transmission respectively.
COPYRIGHT: (C)1979,JPO&Japio
JP7237377A 1977-06-15 1977-06-15 Information communication system Pending JPS545693A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7237377A JPS545693A (en) 1977-06-15 1977-06-15 Information communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7237377A JPS545693A (en) 1977-06-15 1977-06-15 Information communication system

Publications (1)

Publication Number Publication Date
JPS545693A true JPS545693A (en) 1979-01-17

Family

ID=13487428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7237377A Pending JPS545693A (en) 1977-06-15 1977-06-15 Information communication system

Country Status (1)

Country Link
JP (1) JPS545693A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01179143A (en) * 1988-01-08 1989-07-17 Fuji Photo Film Co Ltd Silver halide photographic sensitive material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5044390A (en) * 1973-08-24 1975-04-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5044390A (en) * 1973-08-24 1975-04-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01179143A (en) * 1988-01-08 1989-07-17 Fuji Photo Film Co Ltd Silver halide photographic sensitive material

Similar Documents

Publication Publication Date Title
JPS5319706A (en) Data communication system
JPS5336116A (en) Loop transmission system
JPS5269506A (en) Secondary carrier wave piling pcm-im communication system
JPS5329011A (en) Signal transmitter
JPS545693A (en) Information communication system
JPS53132938A (en) Two-way data transmitter
JPS5429510A (en) Data communication system
JPS5431203A (en) Data communication control system
JPS52130511A (en) Signal transmission unit
JPS5357910A (en) Still picture transmitter
JPS51145240A (en) Data communication system
JPS51143848A (en) Communication system on power line transmission
JPS5428106A (en) Pre-emphasis system
JPS5335442A (en) Transmission and reception method and unit for address signal
JPS5370711A (en) Picture image transmitting system
JPS5293206A (en) Data transmission system
JPS5211735A (en) Signal transmission system
JPS52120709A (en) Common line signal system
JPS52110514A (en) Signal pressure transmission system by am-pm modulation
JPS5370713A (en) Signal transmitting system
JPS5210605A (en) Data transmission system
JPS52140203A (en) Information transmission system
JPS5215215A (en) Signal transmission system for two-wire system
JPS52104001A (en) Secret communication system
JPS5443431A (en) Communication control unit