JPS56149151A - Pulse modulating method - Google Patents

Pulse modulating method

Info

Publication number
JPS56149151A
JPS56149151A JP5272180A JP5272180A JPS56149151A JP S56149151 A JPS56149151 A JP S56149151A JP 5272180 A JP5272180 A JP 5272180A JP 5272180 A JP5272180 A JP 5272180A JP S56149151 A JPS56149151 A JP S56149151A
Authority
JP
Japan
Prior art keywords
signal
pulse
counter
input signal
synchronizing
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
JP5272180A
Other languages
Japanese (ja)
Inventor
Hiroyasu Hayakawa
Satoshi Ishikawa
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP5272180A priority Critical patent/JPS56149151A/en
Publication of JPS56149151A publication Critical patent/JPS56149151A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/026—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse time characteristics modulation, e.g. width, position, interval

Abstract

PURPOSE:To generate a pulse train, which has the pulse width or pulse interval corresponding to an input signal, through simple circuit constitution without high-level adjustment, by counting the number that corresponds to the input signal by a counter and by repeating the counting operation. CONSTITUTION:A binary digital signal from input terminal 5 is inputted to FF circuit 1, whose outputs Q and Q' are supplied, synchronizing with synchronizing signal CK2, to encoder 3 successively and then encoded into BCD codes, etc., by encoder 3 to be inputted to counter 4. Synchronizing with clock signal CK1, counter 4 starts to count down at the rise of output signal CK3 and, when its counted value coincides with the number set in counter 4 previously, generates a pulse signal. According to the number that corresponds to the input signal, the counting operation is repeated to generate as modulation output A a pulse train which has the pulse width or pulse interval corresponding to the input signal via FF circuit 2.
JP5272180A 1980-04-21 1980-04-21 Pulse modulating method Pending JPS56149151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5272180A JPS56149151A (en) 1980-04-21 1980-04-21 Pulse modulating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5272180A JPS56149151A (en) 1980-04-21 1980-04-21 Pulse modulating method

Publications (1)

Publication Number Publication Date
JPS56149151A true JPS56149151A (en) 1981-11-18

Family

ID=12922775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5272180A Pending JPS56149151A (en) 1980-04-21 1980-04-21 Pulse modulating method

Country Status (1)

Country Link
JP (1) JPS56149151A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59182656A (en) * 1983-03-31 1984-10-17 Fujitsu Ltd Pulse width modulating system utilizing feedback
US4669089A (en) * 1985-09-30 1987-05-26 The Boeing Company Suppressed clock pulse-duration modulator for direct sequence spread spectrum transmission systems
JP2007142914A (en) * 2005-11-21 2007-06-07 Toyota Motor Corp Communication apparatus
JP2007295285A (en) * 2006-04-25 2007-11-08 Toyota Motor Corp Two-way communication system
JP2008103940A (en) * 2006-10-18 2008-05-01 Toyota Motor Corp Bidirectional communication system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5218541A (en) * 1975-08-05 1977-02-12 Nissan Motor Co Ltd Torch ignited engine
JPS5252086A (en) * 1975-10-23 1977-04-26 Matsushita Electric Ind Co Ltd Transmitting method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5218541A (en) * 1975-08-05 1977-02-12 Nissan Motor Co Ltd Torch ignited engine
JPS5252086A (en) * 1975-10-23 1977-04-26 Matsushita Electric Ind Co Ltd Transmitting method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59182656A (en) * 1983-03-31 1984-10-17 Fujitsu Ltd Pulse width modulating system utilizing feedback
JPH0242263B2 (en) * 1983-03-31 1990-09-21
US4669089A (en) * 1985-09-30 1987-05-26 The Boeing Company Suppressed clock pulse-duration modulator for direct sequence spread spectrum transmission systems
JP2007142914A (en) * 2005-11-21 2007-06-07 Toyota Motor Corp Communication apparatus
US7769091B2 (en) 2005-11-21 2010-08-03 Toyota Jidosha Kabushiki Kaisha Communication system
JP4525569B2 (en) * 2005-11-21 2010-08-18 トヨタ自動車株式会社 Communication device
JP2007295285A (en) * 2006-04-25 2007-11-08 Toyota Motor Corp Two-way communication system
JP4572865B2 (en) * 2006-04-25 2010-11-04 トヨタ自動車株式会社 Two-way communication system
JP2008103940A (en) * 2006-10-18 2008-05-01 Toyota Motor Corp Bidirectional communication system

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