JPS555537A - Transmitter of spectrum diffusion - Google Patents

Transmitter of spectrum diffusion

Info

Publication number
JPS555537A
JPS555537A JP7833078A JP7833078A JPS555537A JP S555537 A JPS555537 A JP S555537A JP 7833078 A JP7833078 A JP 7833078A JP 7833078 A JP7833078 A JP 7833078A JP S555537 A JPS555537 A JP S555537A
Authority
JP
Japan
Prior art keywords
output
signal
fed
generator
transmitter
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
JP7833078A
Other languages
Japanese (ja)
Inventor
Masaki Yoshimura
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP7833078A priority Critical patent/JPS555537A/en
Publication of JPS555537A publication Critical patent/JPS555537A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques

Abstract

PURPOSE:To simplify the reception unit as well as the transmitter, by constituting the unit with the non-sinusoidal wave signal generator having the set waveform and period, filter circuit picking up a series of harmonic signal groups from the output signal, and the modulation circuit modulating the output. CONSTITUTION:As the non-sinusoidal wave signal generator 1 constituting the unit, the coded pulse waveform generator generating a number of harmonics at random in Fourier series expansion, is used, and this output is fed to the band pass filter 2 picking up a series of harmonic groups from a given band width. Next, the signal passed through it is fed to the balance modulator 3 to which audible signal is fed from the information signal generator source 4, and this output is transmitted in radio waves from the antenna 6 via the broadband amplifier 5. On the other hand, the demodulation circuit receiving this is provided with the generator 1', filter 2', modulator 3', amplifier 5', antenna 6' and audio amplifier 7 which are similar as those provided for the transmitter, to amplify the signal to the required level and to output it.
JP7833078A 1978-06-28 1978-06-28 Transmitter of spectrum diffusion Pending JPS555537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7833078A JPS555537A (en) 1978-06-28 1978-06-28 Transmitter of spectrum diffusion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7833078A JPS555537A (en) 1978-06-28 1978-06-28 Transmitter of spectrum diffusion

Publications (1)

Publication Number Publication Date
JPS555537A true JPS555537A (en) 1980-01-16

Family

ID=13658949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7833078A Pending JPS555537A (en) 1978-06-28 1978-06-28 Transmitter of spectrum diffusion

Country Status (1)

Country Link
JP (1) JPS555537A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06228308A (en) * 1992-12-29 1994-08-16 Internatl Business Mach Corp <Ibm> Triazine polymer and its use

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06228308A (en) * 1992-12-29 1994-08-16 Internatl Business Mach Corp <Ibm> Triazine polymer and its use

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