KR910021086A - Transmission network simulation circuit of voice quality evaluation system - Google Patents

Transmission network simulation circuit of voice quality evaluation system Download PDF

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Publication number
KR910021086A
KR910021086A KR1019900007662A KR900007662A KR910021086A KR 910021086 A KR910021086 A KR 910021086A KR 1019900007662 A KR1019900007662 A KR 1019900007662A KR 900007662 A KR900007662 A KR 900007662A KR 910021086 A KR910021086 A KR 910021086A
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KR
South Korea
Prior art keywords
transmission network
quality evaluation
network simulation
attenuating
evaluation system
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Application number
KR1019900007662A
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Korean (ko)
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KR920009781B1 (en
Inventor
강성훈
Original Assignee
경상현
재단법인 한국전자통신연구소
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Priority to KR1019900007662A priority Critical patent/KR920009781B1/en
Publication of KR910021086A publication Critical patent/KR910021086A/en
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Publication of KR920009781B1 publication Critical patent/KR920009781B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing

Abstract

내용 없음No content

Description

음성 품질 평가 시스템의 전송망 모의회로Transmission network simulation circuit of voice quality evaluation system

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명이 적용된 음성품질 평가 시스템의 전체구성도.1 is an overall configuration diagram of a speech quality evaluation system to which the present invention is applied.

제2도는 본 발명에 의한 전송망 모의회로의 세부 구성 블럭도.2 is a detailed block diagram of a transmission network simulation circuit according to the present invention.

Claims (1)

음성품질 평가 시스템의 전송망 모의회로에 있어서, 전화기에서 송출된 음성신호를 감쇠시켜 전송로의 손실을 모의하는 제1감쇠수단(21), 상기 제1감쇠수단(21)에 연결되어 교환기의 전송 특성을 모의하는 디지틀 필터수단(22), 상기 디지틀 필터수단(22)에 연결되어 필터를 통과한 신호를 증폭시키는 증폭수단(23), 상기 증폭수단(23)에 연결되어 음성신호를 감쇠시켜 전송로의 손실을 모의하는 제2감쇠수단(24), 및 상기 제2감쇠수단(24)에 연결되어 국선잡음과 회선잡음을 전송망에 혼합하는 하이브리드 회로수단(25)으로 구성된 것을 특징으로 하는 음성품질 평가 시스템의 전송망 모의회로.In the transmission network simulation circuit of the voice quality evaluation system, the transmission characteristics of the exchanger are connected to the first attenuation means (21) and the first attenuation means (21) for attenuating the loss of the transmission path by attenuating the voice signal transmitted from the telephone. A digital filter means 22 for simulating a signal, an amplification means 23 connected to the digital filter means 22 to amplify a signal passing through a filter, and attenuated voice signals to amplify a sound signal. Speech quality evaluation, characterized in that it comprises a second attenuating means (24) for simulating the loss of and a hybrid circuit means (25) connected to the second attenuating means (24) for mixing trunk line noise and line noise in a transmission network. Transmission network simulation of the system. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900007662A 1990-05-26 1990-05-26 Pseudo voice quality evaluation system KR920009781B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900007662A KR920009781B1 (en) 1990-05-26 1990-05-26 Pseudo voice quality evaluation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900007662A KR920009781B1 (en) 1990-05-26 1990-05-26 Pseudo voice quality evaluation system

Publications (2)

Publication Number Publication Date
KR910021086A true KR910021086A (en) 1991-12-20
KR920009781B1 KR920009781B1 (en) 1992-10-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900007662A KR920009781B1 (en) 1990-05-26 1990-05-26 Pseudo voice quality evaluation system

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106851713B (en) * 2015-12-07 2021-11-12 中兴通讯股份有限公司 Terminal voice service quality evaluation method and device, and switching management method and device

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Publication number Publication date
KR920009781B1 (en) 1992-10-22

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