JPS57176511A - Noise suppression circuit for audio signal - Google Patents

Noise suppression circuit for audio signal

Info

Publication number
JPS57176511A
JPS57176511A JP56059870A JP5987081A JPS57176511A JP S57176511 A JPS57176511 A JP S57176511A JP 56059870 A JP56059870 A JP 56059870A JP 5987081 A JP5987081 A JP 5987081A JP S57176511 A JPS57176511 A JP S57176511A
Authority
JP
Japan
Prior art keywords
noise
capacitor
generation
track changeover
width
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
JP56059870A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0373068B2 (enrdf_load_stackoverflow
Inventor
Yoshizumi Wataya
Shigeyuki Ito
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 JP56059870A priority Critical patent/JPS57176511A/ja
Priority to CA000381532A priority patent/CA1157939A/en
Priority to DE8181303210T priority patent/DE3174052D1/de
Priority to EP81303210A priority patent/EP0044687B1/en
Priority to AT81303210T priority patent/ATE18616T1/de
Priority to US06/283,186 priority patent/US4843488A/en
Publication of JPS57176511A publication Critical patent/JPS57176511A/ja
Publication of JPH0373068B2 publication Critical patent/JPH0373068B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/911—Television signal processing therefor for the suppression of noise
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
    • G11B15/14—Masking or switching periodically, e.g. of rotating heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
JP56059870A 1980-07-14 1981-04-22 Noise suppression circuit for audio signal Granted JPS57176511A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP56059870A JPS57176511A (en) 1981-04-22 1981-04-22 Noise suppression circuit for audio signal
CA000381532A CA1157939A (en) 1980-07-14 1981-07-10 Noise elimination circuit in a magnetic recording and reproducing apparatus
DE8181303210T DE3174052D1 (en) 1980-07-14 1981-07-13 Noise elimination circuit in a magnetic recording and reproducing apparatus
EP81303210A EP0044687B1 (en) 1980-07-14 1981-07-13 Noise elimination circuit in a magnetic recording and reproducing apparatus
AT81303210T ATE18616T1 (de) 1980-07-14 1981-07-13 Schaltung zum eliminieren des rauschens in einem magnetischen aufzeichnungs- und wiedergabegeraet.
US06/283,186 US4843488A (en) 1980-07-14 1981-07-14 Noise elimination circuit for reproduction of audio signals in a magnetic tape recording and reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56059870A JPS57176511A (en) 1981-04-22 1981-04-22 Noise suppression circuit for audio signal

Publications (2)

Publication Number Publication Date
JPS57176511A true JPS57176511A (en) 1982-10-29
JPH0373068B2 JPH0373068B2 (enrdf_load_stackoverflow) 1991-11-20

Family

ID=13125625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56059870A Granted JPS57176511A (en) 1980-07-14 1981-04-22 Noise suppression circuit for audio signal

Country Status (1)

Country Link
JP (1) JPS57176511A (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58158002A (ja) * 1982-03-15 1983-09-20 Pioneer Electronic Corp アナログ信号の波形補正回路
JPS60224102A (ja) * 1984-04-20 1985-11-08 Matsushita Electric Ind Co Ltd 回転ヘツド型磁気記録再生装置
JPS6130183A (ja) * 1984-07-20 1986-02-12 Sanyo Electric Co Ltd 音声信号雑音除去回路
JPS6134705A (ja) * 1984-07-25 1986-02-19 Sharp Corp 回転ヘッド形磁気テープ再生装置
JPS6148104A (ja) * 1984-08-10 1986-03-08 Matsushita Electric Ind Co Ltd 信号処理装置
JPH04170757A (ja) * 1990-11-05 1992-06-18 Nec Corp 磁気記録再生装置
WO2006098323A1 (ja) * 2005-03-17 2006-09-21 Pioneer Corporation ノイズキャンセラ
WO2006098325A1 (ja) * 2005-03-17 2006-09-21 Pioneer Corporation ノイズキャンセラ
WO2006098324A1 (ja) * 2005-03-16 2006-09-21 Pioneer Corporation ノイズキャンセラ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211018A (en) * 1975-07-16 1977-01-27 Matsushita Electric Ind Co Ltd Drop-out correction system
JPS5280015A (en) * 1975-12-26 1977-07-05 Sony Corp Reproduction apparatus
JPS5413769A (en) * 1977-07-01 1979-02-01 Matsushita Electronics Corp Color picture tube

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211018A (en) * 1975-07-16 1977-01-27 Matsushita Electric Ind Co Ltd Drop-out correction system
JPS5280015A (en) * 1975-12-26 1977-07-05 Sony Corp Reproduction apparatus
JPS5413769A (en) * 1977-07-01 1979-02-01 Matsushita Electronics Corp Color picture tube

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58158002A (ja) * 1982-03-15 1983-09-20 Pioneer Electronic Corp アナログ信号の波形補正回路
JPS60224102A (ja) * 1984-04-20 1985-11-08 Matsushita Electric Ind Co Ltd 回転ヘツド型磁気記録再生装置
JPS6130183A (ja) * 1984-07-20 1986-02-12 Sanyo Electric Co Ltd 音声信号雑音除去回路
JPS6134705A (ja) * 1984-07-25 1986-02-19 Sharp Corp 回転ヘッド形磁気テープ再生装置
JPS6148104A (ja) * 1984-08-10 1986-03-08 Matsushita Electric Ind Co Ltd 信号処理装置
JPH04170757A (ja) * 1990-11-05 1992-06-18 Nec Corp 磁気記録再生装置
WO2006098324A1 (ja) * 2005-03-16 2006-09-21 Pioneer Corporation ノイズキャンセラ
WO2006098323A1 (ja) * 2005-03-17 2006-09-21 Pioneer Corporation ノイズキャンセラ
WO2006098325A1 (ja) * 2005-03-17 2006-09-21 Pioneer Corporation ノイズキャンセラ

Also Published As

Publication number Publication date
JPH0373068B2 (enrdf_load_stackoverflow) 1991-11-20

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