JPS5549049A - Pulse modulation system - Google Patents

Pulse modulation system

Info

Publication number
JPS5549049A
JPS5549049A JP12296378A JP12296378A JPS5549049A JP S5549049 A JPS5549049 A JP S5549049A JP 12296378 A JP12296378 A JP 12296378A JP 12296378 A JP12296378 A JP 12296378A JP S5549049 A JPS5549049 A JP S5549049A
Authority
JP
Japan
Prior art keywords
delay
transmission band
delay circuits
stage
energy
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
JP12296378A
Other languages
Japanese (ja)
Inventor
Tetsuo Kato
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP12296378A priority Critical patent/JPS5549049A/en
Publication of JPS5549049A publication Critical patent/JPS5549049A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE:To make use of a transmission band effectively by dispersing energy of the spectrum of a PCM signal by providing one delay circuit to a prior stage and a delay block including several delay circuits to a post stage. CONSTITUTION:Modulation side 1 and demodulation side 2 are provided with one delay circuits 10 and 20, and one delay block including several delay circuits 11<a-n> and 21<a-n> respectively; output signals from delay circuits 10 and 20 at the prior stage are logically added 12 and 23 to output signals from delay blocks 11<a-n> and 21<a-n> at the post stage. Further, a signal added 12 and an input signal to the prior stage are logically added 13. Consequently, energy of a spectrum is dispersed into a transmission band to lower the peak level of the energy, thereby making effective use of the transmission band.
JP12296378A 1978-10-05 1978-10-05 Pulse modulation system Pending JPS5549049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12296378A JPS5549049A (en) 1978-10-05 1978-10-05 Pulse modulation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12296378A JPS5549049A (en) 1978-10-05 1978-10-05 Pulse modulation system

Publications (1)

Publication Number Publication Date
JPS5549049A true JPS5549049A (en) 1980-04-08

Family

ID=14848945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12296378A Pending JPS5549049A (en) 1978-10-05 1978-10-05 Pulse modulation system

Country Status (1)

Country Link
JP (1) JPS5549049A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9194400B2 (en) 2010-01-27 2015-11-24 Mitsubishi Heavy Industries, Ltd. Centrifugal compressor and washing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9194400B2 (en) 2010-01-27 2015-11-24 Mitsubishi Heavy Industries, Ltd. Centrifugal compressor and washing method
US9776217B2 (en) 2010-01-27 2017-10-03 Mitsubishi Heavy Industries, Ltd. Centrifugal compressor and washing method

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