KR900007261U - 다주파음 발생회로 - Google Patents

다주파음 발생회로

Info

Publication number
KR900007261U
KR900007261U KR2019880016179U KR880016179U KR900007261U KR 900007261 U KR900007261 U KR 900007261U KR 2019880016179 U KR2019880016179 U KR 2019880016179U KR 880016179 U KR880016179 U KR 880016179U KR 900007261 U KR900007261 U KR 900007261U
Authority
KR
South Korea
Prior art keywords
generation circuit
sound generation
frequency sound
frequency
circuit
Prior art date
Application number
KR2019880016179U
Other languages
English (en)
Other versions
KR940000661Y1 (ko
Inventor
조태경
Original Assignee
금성정보통신 주식회사
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 금성정보통신 주식회사 filed Critical 금성정보통신 주식회사
Priority to KR2019880016179U priority Critical patent/KR940000661Y1/ko
Publication of KR900007261U publication Critical patent/KR900007261U/ko
Application granted granted Critical
Publication of KR940000661Y1 publication Critical patent/KR940000661Y1/ko

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13214—Clock signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electrophonic Musical Instruments (AREA)
KR2019880016179U 1988-09-30 1988-09-30 다주파음 발생회로 KR940000661Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019880016179U KR940000661Y1 (ko) 1988-09-30 1988-09-30 다주파음 발생회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019880016179U KR940000661Y1 (ko) 1988-09-30 1988-09-30 다주파음 발생회로

Publications (2)

Publication Number Publication Date
KR900007261U true KR900007261U (ko) 1990-04-04
KR940000661Y1 KR940000661Y1 (ko) 1994-02-07

Family

ID=19279902

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019880016179U KR940000661Y1 (ko) 1988-09-30 1988-09-30 다주파음 발생회로

Country Status (1)

Country Link
KR (1) KR940000661Y1 (ko)

Also Published As

Publication number Publication date
KR940000661Y1 (ko) 1994-02-07

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
LAPS Lapse due to unpaid annual fee