KR920005485U - Echo phenomenon cancellation circuit - Google Patents

Echo phenomenon cancellation circuit

Info

Publication number
KR920005485U
KR920005485U KR2019900013309U KR900013309U KR920005485U KR 920005485 U KR920005485 U KR 920005485U KR 2019900013309 U KR2019900013309 U KR 2019900013309U KR 900013309 U KR900013309 U KR 900013309U KR 920005485 U KR920005485 U KR 920005485U
Authority
KR
South Korea
Prior art keywords
cancellation circuit
echo phenomenon
phenomenon cancellation
echo
circuit
Prior art date
Application number
KR2019900013309U
Other languages
Korean (ko)
Other versions
KR950004458Y1 (en
Inventor
강호신
Original Assignee
엘지정보통신 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 엘지정보통신 주식회사 filed Critical 엘지정보통신 주식회사
Priority to KR2019900013309U priority Critical patent/KR950004458Y1/en
Publication of KR920005485U publication Critical patent/KR920005485U/en
Application granted granted Critical
Publication of KR950004458Y1 publication Critical patent/KR950004458Y1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/18—Automatic or semi-automatic exchanges with means for reducing interference or noise; with means for reducing effects due to line faults with means for protecting lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/30—PCM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/80—Electronic components, circuits, software, systems or apparatus used in telephone systems line protection circuits such as current or overvoltage protection circuits
KR2019900013309U 1990-08-31 1990-08-31 Echo-cancellation circuit KR950004458Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019900013309U KR950004458Y1 (en) 1990-08-31 1990-08-31 Echo-cancellation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019900013309U KR950004458Y1 (en) 1990-08-31 1990-08-31 Echo-cancellation circuit

Publications (2)

Publication Number Publication Date
KR920005485U true KR920005485U (en) 1992-03-26
KR950004458Y1 KR950004458Y1 (en) 1995-06-01

Family

ID=19302813

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019900013309U KR950004458Y1 (en) 1990-08-31 1990-08-31 Echo-cancellation circuit

Country Status (1)

Country Link
KR (1) KR950004458Y1 (en)

Also Published As

Publication number Publication date
KR950004458Y1 (en) 1995-06-01

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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
N231 Notification of change of applicant
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19980530

Year of fee payment: 5

LAPS Lapse due to unpaid annual fee