JPS6465909A - Sound recording level setting circuit - Google Patents

Sound recording level setting circuit

Info

Publication number
JPS6465909A
JPS6465909A JP22233087A JP22233087A JPS6465909A JP S6465909 A JPS6465909 A JP S6465909A JP 22233087 A JP22233087 A JP 22233087A JP 22233087 A JP22233087 A JP 22233087A JP S6465909 A JPS6465909 A JP S6465909A
Authority
JP
Japan
Prior art keywords
level
sound recording
pieces
lit
display circuit
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
JP22233087A
Other languages
Japanese (ja)
Other versions
JP2689440B2 (en
Inventor
Tokuo Tsujimoto
Noriyuki Sakamoto
Michio Kawai
Takayuki Shimamura
Yoshinori Tawa
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62222330A priority Critical patent/JP2689440B2/en
Publication of JPS6465909A publication Critical patent/JPS6465909A/en
Application granted granted Critical
Publication of JP2689440B2 publication Critical patent/JP2689440B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To automatically set an optimum sound recording level by providing a level display circuit to drive n-pieces of light emission diodes, m-pieces of latch circuits, m-pieces of analog switches and an input terminal for an automatic setting control signal to control to above-mentioned latch circuits and the analog switches. CONSTITUTION:A signal level, inputted to the level display circuit 3, is discriminated by the level display circuit 3, and LED1-LED7 corresponding to the discriminated level are lit. Then, the output of the latch circuits 5-7, to which a set input terminal corresponding to LED drive circuits CP5-CP7 of the lit LED is connected, is set. Then, if the input signal level while the control signal of the input terminal 4 for the automatic setting control signal is set, exceeds a maximum sound recording level 0dB, and the LED of +3dB, +6dB or +9dB is lit, the attenuation of the inverse of the level number exceeded is performed by an attenuator. Thus, the signal level to be outputted in the output terminal 2 can be automatically set at the optimum recording level.
JP62222330A 1987-09-04 1987-09-04 Recording level setting circuit Expired - Lifetime JP2689440B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62222330A JP2689440B2 (en) 1987-09-04 1987-09-04 Recording level setting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62222330A JP2689440B2 (en) 1987-09-04 1987-09-04 Recording level setting circuit

Publications (2)

Publication Number Publication Date
JPS6465909A true JPS6465909A (en) 1989-03-13
JP2689440B2 JP2689440B2 (en) 1997-12-10

Family

ID=16780658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62222330A Expired - Lifetime JP2689440B2 (en) 1987-09-04 1987-09-04 Recording level setting circuit

Country Status (1)

Country Link
JP (1) JP2689440B2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6022846A (en) * 1983-04-21 1985-02-05 インタ−ナシヨナル・コンピユ−タ−ズ・リミテツド Data communication system and device
JPS6046886A (en) * 1983-08-24 1985-03-13 Toshiba Corp Control device for resistance welding machine
JPS6148289A (en) * 1984-08-14 1986-03-08 Nec Corp Sound level controller
JPS6195112U (en) * 1984-11-29 1986-06-19

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6022846A (en) * 1983-04-21 1985-02-05 インタ−ナシヨナル・コンピユ−タ−ズ・リミテツド Data communication system and device
JPS6046886A (en) * 1983-08-24 1985-03-13 Toshiba Corp Control device for resistance welding machine
JPS6148289A (en) * 1984-08-14 1986-03-08 Nec Corp Sound level controller
JPS6195112U (en) * 1984-11-29 1986-06-19

Also Published As

Publication number Publication date
JP2689440B2 (en) 1997-12-10

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