DE2431188A1 - Bandgeraet - Google Patents

Bandgeraet

Info

Publication number
DE2431188A1
DE2431188A1 DE2431188A DE2431188A DE2431188A1 DE 2431188 A1 DE2431188 A1 DE 2431188A1 DE 2431188 A DE2431188 A DE 2431188A DE 2431188 A DE2431188 A DE 2431188A DE 2431188 A1 DE2431188 A1 DE 2431188A1
Authority
DE
Germany
Prior art keywords
level
recording
signal
switch
filter
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.)
Withdrawn
Application number
DE2431188A
Other languages
German (de)
English (en)
Inventor
Noriaki Naito
Shoichi Nakamura
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of DE2431188A1 publication Critical patent/DE2431188A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0007—Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
    • H03G9/18—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for tone control and volume expansion or compression

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
DE2431188A 1973-06-28 1974-06-28 Bandgeraet Withdrawn DE2431188A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1973076795U JPS5024112U (enExample) 1973-06-28 1973-06-28

Publications (1)

Publication Number Publication Date
DE2431188A1 true DE2431188A1 (de) 1975-01-16

Family

ID=13615557

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2431188A Withdrawn DE2431188A1 (de) 1973-06-28 1974-06-28 Bandgeraet

Country Status (8)

Country Link
US (1) US3977023A (enExample)
JP (1) JPS5024112U (enExample)
CA (1) CA1001956A (enExample)
DE (1) DE2431188A1 (enExample)
FR (1) FR2235447B1 (enExample)
GB (1) GB1462719A (enExample)
IT (1) IT1015567B (enExample)
NL (1) NL7408630A (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5545112A (en) 1978-09-22 1980-03-29 Sony Corp Signal transmitter
US4319089A (en) * 1978-11-03 1982-03-09 Quasar Microsystems, Inc. Telephone answering machine
JPH05266589A (ja) * 1992-03-23 1993-10-15 Sony Corp デイジタル信号再生回路

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3379959A (en) * 1965-04-30 1968-04-23 Sangamo Electric Co Automatic attenuator device

Also Published As

Publication number Publication date
FR2235447A1 (enExample) 1975-01-24
GB1462719A (en) 1977-01-26
CA1001956A (en) 1976-12-21
FR2235447B1 (enExample) 1979-10-05
US3977023A (en) 1976-08-24
JPS5024112U (enExample) 1975-03-18
NL7408630A (enExample) 1974-12-31
IT1015567B (it) 1977-05-20

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8130 Withdrawal