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JPS54140822A - Processing system for digital signal - Google Patents

Processing system for digital signal

Info

Publication number
JPS54140822A
JPS54140822A JP4835378A JP4835378A JPS54140822A JP S54140822 A JPS54140822 A JP S54140822A JP 4835378 A JP4835378 A JP 4835378A JP 4835378 A JP4835378 A JP 4835378A JP S54140822 A JPS54140822 A JP S54140822A
Authority
JP
Japan
Prior art keywords
band
filter
digital signal
processing system
converter
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
JP4835378A
Other languages
Japanese (ja)
Other versions
JPS5948575B2 (en
Inventor
Daiji Nishizawa
Takashi Fujio
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.)
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting 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 Nippon Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Nippon Hoso Kyokai NHK
Priority to JP53048353A priority Critical patent/JPS5948575B2/en
Publication of JPS54140822A publication Critical patent/JPS54140822A/en
Publication of JPS5948575B2 publication Critical patent/JPS5948575B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Color Television Systems (AREA)
  • Analogue/Digital Conversion (AREA)
  • Filters And Equalizers (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE: To make it possible to reduce the generation of transmission waveform distortion even when both A/D conversion and D/A conversion are repeated several times in a signal processing system composed of an analog unit, a digital unit, a band-limiting filter and an interpolating filter.
CONSTITUTION: After being band-limited by band-limiting filter 2, input video signal 1 is converted by sample holder 3 and A/D converter 4 into a digital signal, which is processed by digital signal processing part 5 and then recoverted into the analog signal by D/A converter 6 to obtain output video signal 8 through interpolating filter 7. Then, group delay characteristics of band limiting filter 2 and interpolating filter 7 are made complementary each other.
COPYRIGHT: (C)1979,JPO&Japio
JP53048353A 1978-04-25 1978-04-25 Digital signal processing method Expired JPS5948575B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53048353A JPS5948575B2 (en) 1978-04-25 1978-04-25 Digital signal processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53048353A JPS5948575B2 (en) 1978-04-25 1978-04-25 Digital signal processing method

Publications (2)

Publication Number Publication Date
JPS54140822A true JPS54140822A (en) 1979-11-01
JPS5948575B2 JPS5948575B2 (en) 1984-11-27

Family

ID=12800997

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53048353A Expired JPS5948575B2 (en) 1978-04-25 1978-04-25 Digital signal processing method

Country Status (1)

Country Link
JP (1) JPS5948575B2 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59132227A (en) * 1983-01-18 1984-07-30 Sony Corp Analog-digital converter
JPS6032167A (en) * 1983-07-31 1985-02-19 Nec Home Electronics Ltd Digital audio sound recorder
JPS6072417A (en) * 1983-09-29 1985-04-24 Sony Corp Analog-digital converter
JPS60143479A (en) * 1983-12-29 1985-07-29 Matsushita Electric Ind Co Ltd Recorder of video signal
JPS60247860A (en) * 1984-04-28 1985-12-07 Toko Inc Pcm record reproducing circuit
JPS61242116A (en) * 1985-04-19 1986-10-28 Pioneer Electronic Corp Signal processing circuit
JPH04245807A (en) * 1991-01-31 1992-09-02 Rohm Co Ltd Filter device
JPH08139601A (en) * 1994-09-05 1996-05-31 Pioneer Electron Corp Signal processing circuit
JPH08139606A (en) * 1994-09-05 1996-05-31 Pioneer Electron Corp Signal processing circuit

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59132227A (en) * 1983-01-18 1984-07-30 Sony Corp Analog-digital converter
JPS6032167A (en) * 1983-07-31 1985-02-19 Nec Home Electronics Ltd Digital audio sound recorder
JPS6072417A (en) * 1983-09-29 1985-04-24 Sony Corp Analog-digital converter
JPH0515087B2 (en) * 1983-09-29 1993-02-26 Sony Corp
JPS60143479A (en) * 1983-12-29 1985-07-29 Matsushita Electric Ind Co Ltd Recorder of video signal
JPS60247860A (en) * 1984-04-28 1985-12-07 Toko Inc Pcm record reproducing circuit
JPH044676B2 (en) * 1984-04-28 1992-01-29
JPS61242116A (en) * 1985-04-19 1986-10-28 Pioneer Electronic Corp Signal processing circuit
JPH04245807A (en) * 1991-01-31 1992-09-02 Rohm Co Ltd Filter device
JPH08139601A (en) * 1994-09-05 1996-05-31 Pioneer Electron Corp Signal processing circuit
JPH08139606A (en) * 1994-09-05 1996-05-31 Pioneer Electron Corp Signal processing circuit

Also Published As

Publication number Publication date
JPS5948575B2 (en) 1984-11-27

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