JPS5558700A - Sound volume adjustment unit - Google Patents

Sound volume adjustment unit

Info

Publication number
JPS5558700A
JPS5558700A JP13195378A JP13195378A JPS5558700A JP S5558700 A JPS5558700 A JP S5558700A JP 13195378 A JP13195378 A JP 13195378A JP 13195378 A JP13195378 A JP 13195378A JP S5558700 A JPS5558700 A JP S5558700A
Authority
JP
Japan
Prior art keywords
sound volume
terminals
volume
volume adjustment
adjustment unit
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
JP13195378A
Other languages
Japanese (ja)
Inventor
Hiroshi Nishitoi
Tadaharu Uchino
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP13195378A priority Critical patent/JPS5558700A/en
Publication of JPS5558700A publication Critical patent/JPS5558700A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)

Abstract

PURPOSE:To make it possible to perform sound volume adjustment and left and right sound volume balance adjustment by digital control by providing only each one-stage volume on the signal line of left and right channel CH. CONSTITUTION:Signals of left and right CH are inputted to terminals L21 and R21 and are outputted to output terminals L22 and R22 through volumes 21 and 22 which have the attenuation quantity controlled by switches A1-A16 and A17- A32. Volume control circuit 23 counts pulses of oscillator OSC on a basis of up/ down counters B1 and B2, and the counted output controls switches A1-A32 through decoders D1 and D2. Signals for sound volume increment and reduction and balance adjustement are applied to terminals 231-234.
JP13195378A 1978-10-25 1978-10-25 Sound volume adjustment unit Pending JPS5558700A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13195378A JPS5558700A (en) 1978-10-25 1978-10-25 Sound volume adjustment unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13195378A JPS5558700A (en) 1978-10-25 1978-10-25 Sound volume adjustment unit

Publications (1)

Publication Number Publication Date
JPS5558700A true JPS5558700A (en) 1980-05-01

Family

ID=15070062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13195378A Pending JPS5558700A (en) 1978-10-25 1978-10-25 Sound volume adjustment unit

Country Status (1)

Country Link
JP (1) JPS5558700A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6388000U (en) * 1986-11-27 1988-06-08
JPS63174800U (en) * 1986-11-27 1988-11-14

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6388000U (en) * 1986-11-27 1988-06-08
JPS63174800U (en) * 1986-11-27 1988-11-14

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