JPS5687925A - Digital signal processor - Google Patents

Digital signal processor

Info

Publication number
JPS5687925A
JPS5687925A JP16506779A JP16506779A JPS5687925A JP S5687925 A JPS5687925 A JP S5687925A JP 16506779 A JP16506779 A JP 16506779A JP 16506779 A JP16506779 A JP 16506779A JP S5687925 A JPS5687925 A JP S5687925A
Authority
JP
Japan
Prior art keywords
decoding
sampling frequency
frequency
produced
digital signal
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
JP16506779A
Other languages
Japanese (ja)
Other versions
JPS6353737B2 (en
Inventor
Yutaka Hirota
Kanji Odagi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP16506779A priority Critical patent/JPS5687925A/en
Publication of JPS5687925A publication Critical patent/JPS5687925A/en
Publication of JPS6353737B2 publication Critical patent/JPS6353737B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/08—Continuously compensating for, or preventing, undesired influence of physical parameters of noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To enable to eliminate the folded noise produced at a digital attenuator effectively, by the decoding with higher frequency than the sampling frequency used in encoding. CONSTITUTION:When a digital signal encoded in sampling frequency fS is input to a digital attenuator, frequency components higher than fS/2 is produced at the output. In decoding this signal 18, side band waves 19 are produced up and down by taking the sampling frequency for decoding as the center. To avoid the production of folded noise between the side band waves and the signal 18 to be composite, the sampling frequency for decoding is taken sufficiently higher than the frequency used for coding.
JP16506779A 1979-12-18 1979-12-18 Digital signal processor Granted JPS5687925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16506779A JPS5687925A (en) 1979-12-18 1979-12-18 Digital signal processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16506779A JPS5687925A (en) 1979-12-18 1979-12-18 Digital signal processor

Publications (2)

Publication Number Publication Date
JPS5687925A true JPS5687925A (en) 1981-07-17
JPS6353737B2 JPS6353737B2 (en) 1988-10-25

Family

ID=15805232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16506779A Granted JPS5687925A (en) 1979-12-18 1979-12-18 Digital signal processor

Country Status (1)

Country Link
JP (1) JPS5687925A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933927A (en) * 1982-08-19 1984-02-24 Victor Co Of Japan Ltd Analog/digital converter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03114843A (en) * 1989-09-29 1991-05-16 Seikosha Co Ltd Manufacture of printing wire

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5243308A (en) * 1975-10-01 1977-04-05 Fujitsu Ltd Signal transmitting system
JPS54157072A (en) * 1978-06-01 1979-12-11 Nippon Hoso Kyokai <Nhk> Digiatal-analogue conversion system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5243308A (en) * 1975-10-01 1977-04-05 Fujitsu Ltd Signal transmitting system
JPS54157072A (en) * 1978-06-01 1979-12-11 Nippon Hoso Kyokai <Nhk> Digiatal-analogue conversion system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933927A (en) * 1982-08-19 1984-02-24 Victor Co Of Japan Ltd Analog/digital converter

Also Published As

Publication number Publication date
JPS6353737B2 (en) 1988-10-25

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