JPS5687926A - Digital signal processor - Google Patents

Digital signal processor

Info

Publication number
JPS5687926A
JPS5687926A JP16506879A JP16506879A JPS5687926A JP S5687926 A JPS5687926 A JP S5687926A JP 16506879 A JP16506879 A JP 16506879A JP 16506879 A JP16506879 A JP 16506879A JP S5687926 A JPS5687926 A JP S5687926A
Authority
JP
Japan
Prior art keywords
spectrum
sampling frequency
digital signal
signal processor
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.)
Pending
Application number
JP16506879A
Other languages
Japanese (ja)
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 JP16506879A priority Critical patent/JPS5687926A/en
Publication of JPS5687926A publication Critical patent/JPS5687926A/en
Pending 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
    • H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence
    • H03M1/0626—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by filtering
    • H03M1/0629—Anti-aliasing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters

Landscapes

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

Abstract

PURPOSE:To prevent interference due to folded noise, by making higher the sampling frequency used for decoding than that at encoding. CONSTITUTION:Taking the sampling frequency as fS, the input analog signal is limited to the spectrum fS/2 or lower at the low-pass filter 1. When the input signal level is small, since higher frequency components are produced at encoding, the sampling frequency at decoding is taken higher than that at analog-digital conversion, e.g., 2 fS. Thus, no folded noise is produced between the spectrum 24 for encoded signal and the spectrum 25 for playback signal.
JP16506879A 1979-12-18 1979-12-18 Digital signal processor Pending JPS5687926A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16506879A JPS5687926A (en) 1979-12-18 1979-12-18 Digital signal processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16506879A JPS5687926A (en) 1979-12-18 1979-12-18 Digital signal processor

Publications (1)

Publication Number Publication Date
JPS5687926A true JPS5687926A (en) 1981-07-17

Family

ID=15805250

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16506879A Pending JPS5687926A (en) 1979-12-18 1979-12-18 Digital signal processor

Country Status (1)

Country Link
JP (1) JPS5687926A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933928A (en) * 1982-08-19 1984-02-24 Victor Co Of Japan Ltd Digital/analog converter
JPS5933927A (en) * 1982-08-19 1984-02-24 Victor Co Of Japan Ltd Analog/digital converter
JPS5981918A (en) * 1982-11-02 1984-05-11 Ricoh Elemex Corp Signal interpolating method of decoding circuit of dpcm-coded signal processing circuit
JPS6123739U (en) * 1984-07-13 1986-02-12 オンキヨー株式会社 D/A converter
JPS61103321A (en) * 1984-10-26 1986-05-21 Sony Corp Signal converting circuit
JPS61184993A (en) * 1985-02-13 1986-08-18 Sony Corp Correcting device for speed error
US7819272B2 (en) 2005-03-16 2010-10-26 Toyota Jidosha Kabushiki Kaisha Fuel tank structure

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 (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933928A (en) * 1982-08-19 1984-02-24 Victor Co Of Japan Ltd Digital/analog converter
JPS5933927A (en) * 1982-08-19 1984-02-24 Victor Co Of Japan Ltd Analog/digital converter
JPS5981918A (en) * 1982-11-02 1984-05-11 Ricoh Elemex Corp Signal interpolating method of decoding circuit of dpcm-coded signal processing circuit
JPS6123739U (en) * 1984-07-13 1986-02-12 オンキヨー株式会社 D/A converter
JPH0136364Y2 (en) * 1984-07-13 1989-11-06
JPS61103321A (en) * 1984-10-26 1986-05-21 Sony Corp Signal converting circuit
JPS61184993A (en) * 1985-02-13 1986-08-18 Sony Corp Correcting device for speed error
US7819272B2 (en) 2005-03-16 2010-10-26 Toyota Jidosha Kabushiki Kaisha Fuel tank structure

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