JPS55163908A - Digital tone control circuit - Google Patents

Digital tone control circuit

Info

Publication number
JPS55163908A
JPS55163908A JP7130479A JP7130479A JPS55163908A JP S55163908 A JPS55163908 A JP S55163908A JP 7130479 A JP7130479 A JP 7130479A JP 7130479 A JP7130479 A JP 7130479A JP S55163908 A JPS55163908 A JP S55163908A
Authority
JP
Japan
Prior art keywords
signal
coefficient
input
terminal
branch point
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
JP7130479A
Other languages
Japanese (ja)
Inventor
Takayoshi Hirata
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP7130479A priority Critical patent/JPS55163908A/en
Publication of JPS55163908A publication Critical patent/JPS55163908A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/005—Tone control or bandwidth control in amplifiers of digital signals

Abstract

PURPOSE:To weighten frequency characteristics easily by treating a digital signal as a direct input signal by combining cyclic and noncyclic simple digital circuits, etc., mutually. CONSTITUTION:A digital signal, sampled at sampling frequency F, is applied to terminal 1 and branched into two at branch point 2; one is input to one terminal of subtracter 5 being multiplied by the 1st coefficient at coefficient unit 3, and the other is also input to the other terminal of substacter 5 being delayed at shift register 4 by delay time 1/F equivalent to one sample. Subtracter 5, therefore, outputs a difference between the signal multiplied by the 1st coefficient and the signal one cycle before to one input terminal of adder 7 and the difference signal is added to the other input signal, i.e. the past signal having passed through shift register 8 providing delay of time 1/F equivalent to one sample, branch point 9 and coefficient unit 10 for multiplication by the 2nd coefficient, thereby outputting the sum via register 8 and branch point 9. Through the above-mentioned procedure, frequency characteristics are weightened.
JP7130479A 1979-06-08 1979-06-08 Digital tone control circuit Pending JPS55163908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7130479A JPS55163908A (en) 1979-06-08 1979-06-08 Digital tone control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7130479A JPS55163908A (en) 1979-06-08 1979-06-08 Digital tone control circuit

Publications (1)

Publication Number Publication Date
JPS55163908A true JPS55163908A (en) 1980-12-20

Family

ID=13456762

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7130479A Pending JPS55163908A (en) 1979-06-08 1979-06-08 Digital tone control circuit

Country Status (1)

Country Link
JP (1) JPS55163908A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5880910A (en) * 1981-11-06 1983-05-16 Sony Corp Tone control circuit
JPS63178912U (en) * 1987-05-09 1988-11-18
JPS6441511A (en) * 1987-08-07 1989-02-13 Victor Company Of Japan Digital audio tone controller

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5880910A (en) * 1981-11-06 1983-05-16 Sony Corp Tone control circuit
JPH0557767B2 (en) * 1981-11-06 1993-08-24 Sony Corp
JPS63178912U (en) * 1987-05-09 1988-11-18
JPS6441511A (en) * 1987-08-07 1989-02-13 Victor Company Of Japan Digital audio tone controller

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