[go: up one dir, main page]

JPS5268350A - Digital signal conversion system - Google Patents

Digital signal conversion system

Info

Publication number
JPS5268350A
JPS5268350A JP14398575A JP14398575A JPS5268350A JP S5268350 A JPS5268350 A JP S5268350A JP 14398575 A JP14398575 A JP 14398575A JP 14398575 A JP14398575 A JP 14398575A JP S5268350 A JPS5268350 A JP S5268350A
Authority
JP
Japan
Prior art keywords
digital signal
signal conversion
conversion system
noise
power source
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
JP14398575A
Other languages
Japanese (ja)
Other versions
JPS5532298B2 (en
Inventor
Yasuhiro Kita
Masachika Miyata
Hiroshi Kuwabara
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14398575A priority Critical patent/JPS5268350A/en
Priority to NL7613501A priority patent/NL7613501A/en
Priority to DE19762654972 priority patent/DE2654972A1/en
Publication of JPS5268350A publication Critical patent/JPS5268350A/en
Publication of JPS5532298B2 publication Critical patent/JPS5532298B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

PURPOSE: To enhance quantization-noise power source by eliminating specific frequency element of noise at output against more than one unit of specific angle frequency within signal band.
COPYRIGHT: (C)1977,JPO&Japio
JP14398575A 1975-12-05 1975-12-05 Digital signal conversion system Granted JPS5268350A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP14398575A JPS5268350A (en) 1975-12-05 1975-12-05 Digital signal conversion system
NL7613501A NL7613501A (en) 1975-12-05 1976-12-03 DEVICE FOR TRANSFORMING DIGITAL SIGNALS.
DE19762654972 DE2654972A1 (en) 1975-12-05 1976-12-03 Circuit converting finely and coarsely quantised signals - has digital filter accepting noise components and supplying compensation with quantised stage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14398575A JPS5268350A (en) 1975-12-05 1975-12-05 Digital signal conversion system

Publications (2)

Publication Number Publication Date
JPS5268350A true JPS5268350A (en) 1977-06-07
JPS5532298B2 JPS5532298B2 (en) 1980-08-23

Family

ID=15351617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14398575A Granted JPS5268350A (en) 1975-12-05 1975-12-05 Digital signal conversion system

Country Status (3)

Country Link
JP (1) JPS5268350A (en)
DE (1) DE2654972A1 (en)
NL (1) NL7613501A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01149868U (en) * 1988-04-07 1989-10-17

Also Published As

Publication number Publication date
DE2654972A1 (en) 1977-06-23
NL7613501A (en) 1977-06-07
JPS5532298B2 (en) 1980-08-23

Similar Documents

Publication Publication Date Title
JPS52145A (en) Tertiary value generator
JPS524737A (en) Ghost image elimination circuit
JPS5268350A (en) Digital signal conversion system
JPS51123133A (en) Instrument tone conversion device
JPS5222870A (en) Frequency-voltage converter unit
JPS52131409A (en) Signal corrction system
JPS53959A (en) A-d converter
JPS53108711A (en) Split-coding system for facismile signal
JPS5341967A (en) Wave form shaping circuit
JPS5280770A (en) Gate circuit
JPS5228621A (en) Full wave rectifier amplifier
JPS5319721A (en) Correcting unit of bar-code signal
JPS53958A (en) A-d converter
JPS52112266A (en) Function switch circuit of digital circuit
JPS52130675A (en) Measuring apparatus for carrier wave signal power
JPS53143118A (en) Caty system
JPS526013A (en) Measuremeat of dynamic distortion
JPS53108360A (en) Phase modulation transmitter
JPS51117061A (en) Space system ad converter
JPS5282176A (en) Conversion circuit
JPS5219580A (en) Peak detecting system
JPS51124304A (en) Noise reducing device
JPS53108712A (en) Coding system for facsimile signal
JPS547846A (en) Discrimination system for digital amplitude, polarity and code
JPS524156A (en) Phase modulator