JPS5487412A - Code transferring method - Google Patents

Code transferring method

Info

Publication number
JPS5487412A
JPS5487412A JP15578477A JP15578477A JPS5487412A JP S5487412 A JPS5487412 A JP S5487412A JP 15578477 A JP15578477 A JP 15578477A JP 15578477 A JP15578477 A JP 15578477A JP S5487412 A JPS5487412 A JP S5487412A
Authority
JP
Japan
Prior art keywords
inputted
waveform
psk
transmitted
clock pulses
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
JP15578477A
Other languages
Japanese (ja)
Inventor
Yoshishige Nagata
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP15578477A priority Critical patent/JPS5487412A/en
Publication of JPS5487412A publication Critical patent/JPS5487412A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4904—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using self-synchronising codes, e.g. split-phase codes

Abstract

PURPOSE:To simplify a modulator and demodulator by forming digital codes, which should be transmitted, synchronizing to clock pulses used as a carrier and by PSK- modulating clock pulses by those digital codes to be transmitted. CONSTITUTION:Clock pulses C generated by clock pulse generator 22 are inputted to encoder 21, where they are synchronized with digital codes which should be transmitted and also inputted to as a subcarrier to PSK modulator 23. Data to be transmitted are inputted from terminal 20 to encoder 21 and digital codes A which correspond to an input signal and synchronize with clock pulses are inputted to PSK modulator 23 through terminal 10. In PSK modulator 23, waveform C is PSK- modulated into waveform D by waveform A and inputted to FM radio equipment transmitter part 12. Therefore, since waveform A synchronizes with waveform C, the circuit of PSK modulator 23 can be constituted extremely simply.
JP15578477A 1977-12-23 1977-12-23 Code transferring method Pending JPS5487412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15578477A JPS5487412A (en) 1977-12-23 1977-12-23 Code transferring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15578477A JPS5487412A (en) 1977-12-23 1977-12-23 Code transferring method

Publications (1)

Publication Number Publication Date
JPS5487412A true JPS5487412A (en) 1979-07-11

Family

ID=15613331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15578477A Pending JPS5487412A (en) 1977-12-23 1977-12-23 Code transferring method

Country Status (1)

Country Link
JP (1) JPS5487412A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01117140U (en) * 1988-01-30 1989-08-08

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49114305A (en) * 1973-02-27 1974-10-31
JPS5228212A (en) * 1975-08-27 1977-03-03 Toa Tokushu Denki Kk Intra-office information transmission system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49114305A (en) * 1973-02-27 1974-10-31
JPS5228212A (en) * 1975-08-27 1977-03-03 Toa Tokushu Denki Kk Intra-office information transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01117140U (en) * 1988-01-30 1989-08-08

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