JPS5715208A - Automatic gain adjusting method - Google Patents

Automatic gain adjusting method

Info

Publication number
JPS5715208A
JPS5715208A JP8865080A JP8865080A JPS5715208A JP S5715208 A JPS5715208 A JP S5715208A JP 8865080 A JP8865080 A JP 8865080A JP 8865080 A JP8865080 A JP 8865080A JP S5715208 A JPS5715208 A JP S5715208A
Authority
JP
Japan
Prior art keywords
error
reversing
recording medium
switching
gain adjustment
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
JP8865080A
Other languages
Japanese (ja)
Inventor
Yukio Taniyama
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8865080A priority Critical patent/JPS5715208A/en
Publication of JPS5715208A publication Critical patent/JPS5715208A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Digital Magnetic Recording (AREA)

Abstract

PURPOSE:To retry part of a gain adjustment error due to a flaw on a recording medium by reversing the normal running direction of the recording medium in retrying the error during an automatic gain adjustment. CONSTITUTION:Retrying operation when an error occurs during the gain adjustment 5 is performed by reversing the running direction of a recording medium. For example, if an error is detected by an error detecting circuit 6, a run inverting circuit 12 is informed of that and on the basis of the count value of an ARA length counter 8, a running-direction inverting indication is sent to a capstan driving circuit 10 to read an ARA area while reversing a capstan 11, thereby switching gains of an amplifier 5 successively through a gain switching starting circuit 9. When the output of the amplifier goes to a prescribed value, the switching of gains is stopped.
JP8865080A 1980-06-30 1980-06-30 Automatic gain adjusting method Pending JPS5715208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8865080A JPS5715208A (en) 1980-06-30 1980-06-30 Automatic gain adjusting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8865080A JPS5715208A (en) 1980-06-30 1980-06-30 Automatic gain adjusting method

Publications (1)

Publication Number Publication Date
JPS5715208A true JPS5715208A (en) 1982-01-26

Family

ID=13948685

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8865080A Pending JPS5715208A (en) 1980-06-30 1980-06-30 Automatic gain adjusting method

Country Status (1)

Country Link
JP (1) JPS5715208A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11096451B2 (en) 2018-03-30 2021-08-24 Shiwori Company, Limited Combination of clothing and ornaments for clothing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11096451B2 (en) 2018-03-30 2021-08-24 Shiwori Company, Limited Combination of clothing and ornaments for clothing

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