KR840002180A - Interference Controller and Detector for Use - Google Patents

Interference Controller and Detector for Use Download PDF

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Publication number
KR840002180A
KR840002180A KR1019820004733A KR820004733A KR840002180A KR 840002180 A KR840002180 A KR 840002180A KR 1019820004733 A KR1019820004733 A KR 1019820004733A KR 820004733 A KR820004733 A KR 820004733A KR 840002180 A KR840002180 A KR 840002180A
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South Korea
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signal
interference
canceled
values
detector
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KR1019820004733A
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Korean (ko)
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포올 코울터 로버트
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오레그 이. 엘버
웨스턴 일렉트릭 캄파니, 인코포레이티드
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Publication of KR840002180A publication Critical patent/KR840002180A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/02Details
    • H04B3/20Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/02Details
    • H04B3/20Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H04B3/237Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers using two adaptive filters, e.g. for near end and for end echo cancelling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/02Details
    • H04B3/20Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H04B3/238Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers using initial training sequence

Abstract

내용 없음No content

Description

간섭제어기 및 이에 사용하기 위한 검출기Interference Controller and Detector for Use

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명을 활용하는 개량된 근단 담화 검출기를 포함하는 전형적인 반향상쇄기의 블록도.2 is a block diagram of a typical echo canceller including an improved near-end speech detector utilizing the present invention.

제3 및 4도는 제2도에 도시된 반향상쇄 구조체의 전형적인 상세실시도.3 and 4 are exemplary details of the anti-cancellation structure shown in FIG.

Claims (9)

근당 송·수신기의 송신로를 따라 전파하는 실제 복귀신호의 간섭신호가 실제적으로 상쇄되게끔 동작에 있어, 간섭복제신호가 복귀신호로부터 공제되어 간섭이 상쇄된 신호로 생성됨과 동시에 상기 복제신호가 송수신기의 수신로상의 입력신호 및 상기 간섭이 상쇄된 신호에 응답하여 생성되며, 또 하나의 간섭복제신호가 입력신호 및 상기 또 하나의 간섭이 상쇄된 신호에 응답하여 생성되고, 상기 간섭복제신호의간섭복제신호가 입력신호 및 상기 또 하나의 간섭이 상쇄된 신호에 응답하여 생성되고, 상기 갑섭복제신호의 생성에 대한 소정이 상기 입력신호와 또 하나의 간섭이 상쇄된 신호간의 예정된 관계에 의하여 금지되게 되어 있는 간섭제어기.In the operation to actually cancel the interference signal of the actual return signal propagating along the transmission path of the root per receiver, the interference replication signal is subtracted from the return signal to generate a signal canceling the interference and at the same time the copy signal is a transceiver Is generated in response to the input signal on the receiving path of the signal and the interference canceled signal, and another interference replica is generated in response to the input signal and the signal from which the other interference is canceled, and interference of the interference replica signal A duplicate signal is generated in response to an input signal and a signal from which the another interference has been canceled, such that the predetermined for generation of the interference replica signal is prohibited by a predetermined relationship between the input signal and the signal from which another interference has been cancelled. Interference controller. 제1항에 있어서, 간섭복제신호를 복귀신호로부터 공제하여 간섭이 상쇄된 신호를 발생하는 수단과, 상기 간섭이 상쇄된 신호 및 입력신호를 수신해서 N개의 증가식으로 지연된 입력신호의 표본값들을 저장하여 이들 값들을 상기 간섭이 상쇄된 신호와 합성하는 것에 의해 간섭복제신호 발생하는 제1처리수단을 구비하며, 또한 또 하나의 간섭복제신호를 복귀신호로부터 공제하여 또 하나의 간섭이 상쇄된 신호를 발생하는 수단과, 또 하나의 간섭이 상쇄된 신호 및 입력신호를 수신해서 M개의 증가식으로 지연된 입력신호의 표본값들을 저장하여 이들 M개의 값들과 또 하나의 간섭이 상쇄된 신호를 합성하는 것에 의해 또 하나의 간섭복제신호를 발생하는 처리수단과, 또 하나의 간섭이 상쇄된 신호 및 입력신호를 수신해야 복수개의 증가식으로 지연된 입력신호의 표본값들을 저장하여 이들 복수개의 증가식으로 지연된 표본값들과 또 하나의 간섭이 상쇄된 신호간의 예정된 관계에 따라 처리수단을 제동하는 제어수단을 포함한 검출기를 구비함을 특징으로 하는 제어기.2. The apparatus of claim 1, further comprising: means for generating an interference canceled signal by subtracting the interference replica signal from a return signal, and receiving sample values of the N incrementally delayed input signals by receiving the canceled interference signal and the input signal. A first processing means for generating an interference replica signal by storing and synthesizing these values with the signal from which the interference is canceled; and further subtracting another interference replica signal from a return signal to cancel another interference signal. Means for generating a signal, receiving an interference canceled signal and an input signal, storing sample values of the M incrementally delayed input signal, and synthesizing the M canceled signals with another interference canceled signal; Processing means for generating another interference replica signal, and a signal and an input signal canceled by another interference And a detector comprising control means for storing the sample values of the input signal and for braking the processing means in accordance with a predetermined relationship between these plurality of incrementally delayed sample values and the signal whose interference is canceled. . 제2항에 있어서, 제2처리 수단이 입력신호에 응답하여 M개의 증가식으로 지연된 입력신호의 표본값들을 발생하는 횡여파기를 형성하는 (M-1)개의 지연소자들과 제각기 또 하나의 간섭이 상쇄된 신호에 응답하여 M개의 탭자리값들중의 제각기 하나를 발생하는 M개의 탭자리값 발생기들과, 제각기 M개의 증가식으로 지연된 표본값들중의 제작기의 하나와 M개의 탭자리값들중의 제각기의 하나에 응답하여 이들값들의 제각기의 승산적을 발생하는 M개의 승산기들과 M개의 승산적들을 합계하여 또 하나의 간섭복제신호를 발생하는 수단을 포함함을 특징으로 하는 제어기.3. The interference processing device according to claim 2, wherein the second processing means (M-1) delay elements forming a lateral filter generating sample values of M incrementally delayed input signals in response to the input signal, respectively, and another interference. M tap seat generators, each generating one of the M tap seat values in response to the canceled signal, and one and M tap seat values, one of the makers of M incrementally delayed sample values, respectively. Means for generating another interference replication signal by summing M multipliers and M multipliers that generate multiplications of each of these values in response to each one of them. 제2 또는 3항에 있어서, 제어수단은 또 하나의 간섭이 상쇄된 신호가 복수개의 증가식으로 지연된 입력신호의 표본값들중의 최대 표본값의 이분리 일보다 클 때 제1처리수단을 제동하는 역할을 함을 특징으로 하는 제어기.4. The control means according to claim 2 or 3, wherein the control means brakes the first processing means when another interference canceled signal is greater than two separation days of the maximum sample value among the sample values of the plurality of incrementally delayed input signals. A controller characterized in that it serves to. 근단 송수신기의 송신로상에 근단 신호가 존재할 때 간섭제어기에 대한 조정이 금지되게끔, 송신로를 따라 전파하는 실제 복귀신호로부터 검출기의 간섭복제 신호를 공제하여 검출기의 간섭이 상쇄된 신호를 발생하는 수단과, 송수신기의 수신로에 따라 전파하는 입력신호 및 검출기의 간섭이 상쇄된 신호를 수신해서 M개의 증가식으로 지연된 입력신호의 제1표본값들을 저장하여 이들 M개의 값들과 검출기의 간섭이 상쇄된 신호를 합성하는 처리수단과 검출기의 간섭이 상쇄된 신호 및 입력신호를 수신해서 복수개의 증가식으로 지연된 입력신호의 표본값들을 저장하여 이들 표본값들과 검출기의 간섭이 상쇄된 신호간의 여정된 관계에 따라 간섭제어기에 대한 조정을 금지하는 신호를 발생하는 제어수단을 포함하는 검출기.When the near-end signal is present on the transmission path of the near-end transceiver, adjustment to the interference controller is prohibited, and a signal that cancels the interference of the detector is generated by subtracting the interference replication signal of the detector from the actual return signal propagating along the transmission path. Means for receiving the input signal propagating along the receiving path of the transceiver and the signal canceled by the detector, and storing the first sample values of the M incrementally delayed input signal to cancel the interference between these M values and the detector. A processing means for synthesizing the received signals and a signal having canceled the interference of the detector and an input signal, and storing sample values of a plurality of incrementally delayed input signals, And control means for generating a signal prohibiting adjustment to the interference controller in accordance with the relationship. 제5항에 있어서, 처리수단이 입력신호에 응답하여 M개의 점차적으로 지연된 입력신호의 표본값들을 발생하는 횡여파기를 형성하는 (M-1)개의 지연소자들과 제각기 검출기의 간섭이 상쇄된 신호에 응답하여 M개의 탭자리값들중의 제각기의 하나를 발생하는 M개의 탭자리값 발생기들과, 제각기 M개의 점차적으로 지연된 표본값들중의 제각기의 하나와 M개의 탭자리값들의 제각기의 하나에 응답하여 이들 값들의 제작기의 승산적을 발성하는 M개의 승산기들과, M개의 승산적들을 합계하여 간섭복제신호를 발생하는 수단을 포함함을 특징으로 하는 검출기.6. The signal according to claim 5, wherein the processing means cancels the interference of (M-1) delay elements and detectors, respectively, which form a transverse filter that generates sample values of the M gradually delayed input signals in response to the input signal. M tap seat generators generating one of each of the M tap seat values in response, one of each of the M gradually delayed sample values, and one of each of the M tap seat values, respectively. And M multipliers for uttering a multiplier of the producer of these values in response, and means for summing the M multipliers to generate an interference replica signal. 제5 또는 6항에 있어서, 제어수단을 검출기의 간섭이 상쇄된 신호가 복수개의 점차적으로 지연된 입력신호의 표본값들중의 최대표본값의 이분지 일보다 클 때 간섭제어기에 대한 조정을 금리하는 신호를 발생하는 역할을 함을 특징으로 하는 검출기.7. The method according to claim 5 or 6, wherein the control means causes the interest rate to be adjusted for the interference controller when the signal in which the interference of the detector cancels out is greater than two half of the maximum sample value among the sample values of the plurality of gradually delayed input signals. A detector, characterized in that it serves to generate a signal. 제2도 또는 제3,4 및 5도를 참조하여 본 명세서 중에 설명된 바와 같은 간섭제어기.An interference controller as described herein with reference to FIGS. 2 or 3, 4 and 5. 제2도 또는 4도를 참조하여 본 명세서중에 설명된 바와 같은 검출기.Detector as described herein with reference to FIGS. 2 or 4. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019820004733A 1981-10-23 1982-10-21 Interference Controller and Detector for Use KR840002180A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31449781A 1981-10-23 1981-10-23
US314497 1981-10-23

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KR840002180A true KR840002180A (en) 1984-06-11

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JP (1) JPS58125920A (en)
KR (1) KR840002180A (en)
AU (1) AU8965482A (en)
DE (1) DE3238549A1 (en)
FR (1) FR2515452A1 (en)
GB (1) GB2109209A (en)
NL (1) NL8204099A (en)
SE (1) SE8205840L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6076825A (en) * 1983-10-03 1985-05-01 Nec Corp Adaptive echo canceller
JPH0624327B2 (en) * 1985-05-24 1994-03-30 日本電気株式会社 Terminal device
JPS6235723A (en) * 1985-08-08 1987-02-16 Matsushita Electric Ind Co Ltd Echo canceling device
EP0307765A1 (en) * 1987-09-18 1989-03-22 Siemens Aktiengesellschaft Arrangement for detecting periodic signals for a speech echo canceller
US5471527A (en) 1993-12-02 1995-11-28 Dsc Communications Corporation Voice enhancement system and method
EP0809841B1 (en) * 1995-02-15 2001-04-11 BRITISH TELECOMMUNICATIONS public limited company Voice activity detection
GB2308283A (en) * 1995-12-16 1997-06-18 Ibm System and method for echo cancellation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1816153B2 (en) * 1968-12-20 1971-04-15 CIRCUIT ARRANGEMENT FOR ECHO SUPPRESSION IN A TALK CIRCUIT ON A FOUR WIRE TRANSMISSION SYSTEM IN THE CASE OF A TRANSITION TO A TWO WIRE TRANSMISSION PATH
US3992594A (en) * 1975-10-10 1976-11-16 Bell Telephone Laboratories, Incorporated Echo suppressor break-in circuitry
JPS56153850A (en) * 1980-04-28 1981-11-28 Kokusai Denshin Denwa Co Ltd <Kdd> Echo control system

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JPS58125920A (en) 1983-07-27
DE3238549A1 (en) 1983-05-19
FR2515452A1 (en) 1983-04-29
GB2109209A (en) 1983-05-25
SE8205840D0 (en) 1982-10-14
AU8965482A (en) 1983-04-28
SE8205840L (en) 1983-04-24
NL8204099A (en) 1983-05-16

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