JPS57115061A - Method for transmitting fm data - Google Patents

Method for transmitting fm data

Info

Publication number
JPS57115061A
JPS57115061A JP90181A JP90181A JPS57115061A JP S57115061 A JPS57115061 A JP S57115061A JP 90181 A JP90181 A JP 90181A JP 90181 A JP90181 A JP 90181A JP S57115061 A JPS57115061 A JP S57115061A
Authority
JP
Japan
Prior art keywords
phase
linear
transmitting
peak
receiving side
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
JP90181A
Other languages
Japanese (ja)
Other versions
JPS6331133B2 (en
Inventor
Kiyoshi Takagi
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.)
Japan Radio Co Ltd
Nihon Musen KK
Original Assignee
Japan Radio Co Ltd
Nihon Musen 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 Japan Radio Co Ltd, Nihon Musen KK filed Critical Japan Radio Co Ltd
Priority to JP90181A priority Critical patent/JPS57115061A/en
Publication of JPS57115061A publication Critical patent/JPS57115061A/en
Publication of JPS6331133B2 publication Critical patent/JPS6331133B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying

Abstract

PURPOSE:To control the peak-to-peak value of impulse noises mixed into the transmitting system and to improve the error rate, by installing phase control circuits which have a non-linear phase characteristic and which supplement each other, to the transmitting side and receiving side of an FM transmitting system. CONSTITUTION:A modulation signal from a modulation signal generator 1 is delivered from an FM modulator 4 through a phase controller 2 having a non- linear phase characteristic. The signal is discriminated in frequency by a discriminator 4 at the receiving side, and the phase characteristic is inputted into a non-linear phase controller, and the peak-to-peak value of impulse noises is lowered by the phase controller 5. The composite value of the phase characteristic at the transmitting side and the receiving side becomes a linear one. Moreover, the output of the phase controller 5 is outputted through a filter and a digital demodulator 7.
JP90181A 1981-01-07 1981-01-07 Method for transmitting fm data Granted JPS57115061A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP90181A JPS57115061A (en) 1981-01-07 1981-01-07 Method for transmitting fm data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP90181A JPS57115061A (en) 1981-01-07 1981-01-07 Method for transmitting fm data

Publications (2)

Publication Number Publication Date
JPS57115061A true JPS57115061A (en) 1982-07-17
JPS6331133B2 JPS6331133B2 (en) 1988-06-22

Family

ID=11486579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP90181A Granted JPS57115061A (en) 1981-01-07 1981-01-07 Method for transmitting fm data

Country Status (1)

Country Link
JP (1) JPS57115061A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0529229Y2 (en) * 1989-06-26 1993-07-27

Also Published As

Publication number Publication date
JPS6331133B2 (en) 1988-06-22

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