WO2010145278A1 - Device and method for eliminating environmental noise - Google Patents

Device and method for eliminating environmental noise Download PDF

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Publication number
WO2010145278A1
WO2010145278A1 PCT/CN2010/071761 CN2010071761W WO2010145278A1 WO 2010145278 A1 WO2010145278 A1 WO 2010145278A1 CN 2010071761 W CN2010071761 W CN 2010071761W WO 2010145278 A1 WO2010145278 A1 WO 2010145278A1
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Prior art keywords
uplink
elimination
domain
suppression
received
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PCT/CN2010/071761
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French (fr)
Chinese (zh)
Inventor
邹健
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中兴通讯股份有限公司
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Publication of WO2010145278A1 publication Critical patent/WO2010145278A1/en

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    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering

Definitions

  • the user In the use of the mobile terminal, the user has a place, a street, a restaurant, and the like. In the case of God, it is clear that the user has re-introduced the quiet place, and will say that the terminal used by the e is closer to the ear, so that. Therefore, effective elimination is especially important.
  • the level and the level of the signal compared to the frequency sub-synthesis, synthesize the frequency sub-synthesis into the frequency garden to eliminate the upper one.
  • the other is the formation method, which has the same meaning on the terminal, so that the gram receives the uplink and the uplink signal is strong, and concentrates the message to suppress.
  • the main purpose of the present invention is to provide a device and a method for eliminating the terminal, which can be effectively suppressed in both the uplink direction and the downlink direction, so that it is clear below.
  • the wood plan is
  • This apparatus provides means for elimination, including up-down suppression, extraction, and reversal.
  • the device includes a C-channel, a pre-domain, a domain cancellation, a media gain, a mediation suppression, a non-domain cancellation, and a path switching detector.
  • the received uplinks appear like the sum and / / special, filtering low
  • the path switching detector detects the uplink suppression and extraction in the detection of the uplink audio. In the above scheme, the path switching detector determines the uplink suppression and
  • the extracted work the idle uplink message exists, the uplink suppression work, the uplink message does not exist, and the extraction work.
  • This method provides a means of elimination, including
  • the extracted ones are extracted from each other.
  • the method step when the uplink is received, the method step includes the uplink and the like that are received by the friend, and the elimination is low.
  • the uplink received by the gram wind seems to be similar to the sum, and the method step includes detecting whether the uplink message exists or not, and if the uplink message exists, the uplink is eliminated, otherwise, the extraction is performed.
  • the elimination includes the domain and non-domain in the elimination.
  • the reverse down, the method includes the reverse in the middle of the ear,
  • the device and method for elimination provided by the company are different in the terminal Where the position is above the path, in the uplink direction, suppressing the received uplink in the downstream direction, the extracted special is reversed, and then the reverse is in the middle of the ear, in the ear The reverses cancel each other out, and the elimination of the original ones effectively suppresses the effect of this effect.
  • the effective suppression can be effectively performed in the upward direction, and the effective suppression in the downward direction can be clearly clarified, so that the present is not clear and clear, and the user is provided with better use.
  • the basic idea of this is to separate the above and above the different positions of the terminal, and in the uplink direction, suppress the received uplink.
  • the apparatus provided by the present invention includes: ⁇ 1 ⁇ 2, front 3 and front 4, gain 5, non-domain elimination 6, uplink suppression 7, domain elimination 8 and domain elimination 9, Extract 10, reverse 11, path switching detector 12, sheep 13 where Where 1 and 2, on the receiving uplink, including the uplink audio and uplink, the general, can be separated, so that the received uplink audio characteristics are larger, so that the received uplink characteristics are basically, easy to extract
  • the first 3 and the first 4 are respectively connected to Fan 1 and Fan 2, of which the first 3 and the first 4 are respectively caused by the upward and large analogy of the received uplink, and the uplink is high filtered to filter out the low, low frequency is lower than 30.
  • the gain of z is 5, and the gain of the uplink is large
  • the path switching detector 12 determines the uplink suppression 7 and the extraction 10 for the operation of the uplink audio signal. If the uplink audio message exists, the uplink suppression 7 working fruit uplink information does not exist, and then 10 is extracted. Sheep 13, in the reverse and down.
  • the method of elimination is proposed, 2, the method includes the following steps
  • Step 201 Where the received uplink is preliminary
  • the uplink is received when the work is received, and the received uplink includes the uplink audio message and the uplink and the like before the uplink, and the low-high filtering below 30 z, to eliminate the low below z.
  • Step 202 Detect whether the uplink audio message exists, if yes, if it is not in step 203, perform step 205 and step 206.
  • the special case is not considered, that is, any one of them is in the same way, that is, there is an uplink message or a downlink message.
  • the path switching detector 12 detects whether the uplink audio message exists. If the uplink audio message exists, the local party of the terminal is present, then the uplink voice message does not exist in step 203, indicating that the terminal does not exist, and there is a downlink voice message, then step 205 and steps are performed. 206
  • Step 203 204 cancel the uplink, cancel the uplink, and go to step 209.
  • the received message has a strong intensity, so the characteristics of the received message are large, and the received characteristics basically cause that, the first 3 of the 1 and the top 4 of the 2 are respectively ascending.
  • the size of the seemingly large uplink is large, and the gain of the upward gain of the gain 5 is large, which makes the road ascending to the basics, and the large characteristics will be Gain's upstream up-suppression 7 suppression, will eliminate the upstream
  • Step 205 is eliminated, returning to step 203, step 206, executing
  • Elimination includes elimination of domain and elimination of non-domain
  • domain elimination 8 and domain elimination 9 will eliminate the domain in the way.
  • the non-domain characteristics of sheep 13 and the non-domain nature of the music letter from the sheep 13 are also determined to be non-domain by the 1 and 2, and the non-domain elimination.
  • Eliminate non-domain, and eliminate domain 8, domain elimination 9 and non-domain elimination 6 together to eliminate the role of .
  • the path switching detector 12 detects the presence of the uplink signal, and the uplink suppression 7 operates, and in the cancellation, returns to step 203, and again suppresses the suppression in the uplink 7 to eliminate the medium.
  • the method of eliminating the domain and eliminating the non-domain households in the existing wood do not do.
  • Step 206 extraction, step step 205 is performed
  • the path switching detector 12 detects that the uplink audio message does not exist, indicating that the terminal does not exist, and that there is a downlink audio message, and the received uplink characteristics are basically obtained, and the extracted 10 can be mutually mutually extracted, and the basic characteristics are extracted.
  • Step 207 208 the extracted special reverse direction, and then the reverse downlink phase
  • step 209 If the step 209 is not, then if the process returns to step 202, if yes, go to the process.
  • 3 is a schematic representation of the elimination of the terminal in accordance with the method, the core indicating the folding. 3, 31 Terminal's receiving location 32 Where 2 sound hole position 33 Terminal's sound hole position of the rabbit 34 The sheep shown in position 1 of 1 includes the 31 out of 3 and the sound hole of 33 rabbits.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Telephone Function (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A device for eliminating environmental noise comprises a channel switching detector, an environmental noise extracting module, a reverse transmission module and an upstream noise suppression module; the channel switching detector determines the operations of the environmental noise extracting module and the upstream noise suppressing module with the detection of an upstream voice signal; and the environmental noise extracting module extracts an environmental noise signal via cross correlation of signals; the reverse transmission module converts the environmental noise signal extracted by the noise extracting module into a reversed environmental noise signal, and overlaps the obtained reversed environmental noise signal with a downstream signal; and the upstream noise suppression module suppresses a noise signal in the upstream signal. A method for eliminating environmental noise is also provided.

Description

科消除 的裝置及方法 木領域  Device and method for elimination
本 涉及 中的 消除 木， 特別是 終端中 消除 的裝置及方法。 背景 木  This is a device and method for eliminating wood, especially in the terminal. Background
在使用移 終端 的 中， 用戶有 在 下 ， 譬 在 的大街上、 的地 、 的餐館 等。 神情況下， 了 清楚 己的 ， 用戶 重新 介安靜的地方 ， 將說 大， 同 ， 近 e使用的 終端更貼近 己的耳朵， 以便 的 。 因此， 有效的消除 的 得尤 重要。  In the use of the mobile terminal, the user has a place, a street, a restaurant, and the like. In the case of God, it is clear that the user has re-introduced the quiet place, and will say that the terminal used by the e is closer to the ear, so that. Therefore, effective elimination is especially important.
通常， 可以分力 和非 ， 于 幅度特性 同 不大的 比較容易消除， 但 于 幅度特性 同快速 的非 ， 往往很 消除。  Generally, it is easier to eliminate the difference between the amplitude and the non-distribution, but the amplitude characteristics are the same as the fast ones, which are often eliminated.
在現有 木中， 消除 的 ， 尤其是 中的非 ， 通常的做法有 是 理法， 將 凡接收到的上 行 分解力 列頻率子 ， 在 頻率子 中  In the existing wood, the elimination, especially the neutrality, is usually the rationale, which will decompose the received upper line into the frequency, in the frequency
水平和 音信 水平， 然 比 各 頻率子 ， 將 的各 頻率子 合成到 頻率 園內作力 ， 以消除上 中的 。 另 是 形成法， 在 終端上 具有 定同 的 凡， 使 克分別接收上行 ， 通 路上行 的 音信 強， 而集中 音信 ， 到抑制 The level and the level of the signal, compared to the frequency sub-synthesis, synthesize the frequency sub-synthesis into the frequency garden to eliminate the upper one. The other is the formation method, which has the same meaning on the terminal, so that the gram receives the uplink and the uplink signal is strong, and concentrates the message to suppress.
的作用。 但上 方法均是在 的上行方向 ， 沒有涉及到下 行方向的 ， 即 不能 用戶在 下 的 。 The role. However, the above methods are in the upward direction, and there is no downward direction, that is, the user cannot be in the lower direction.
內容  Content
有 于此， 本 的主要目的在于提供 終端中消除 的裝置及方法， 能在上行方向和下行方向均有效抑制 ， 使得 在 下 清楚 的 。  In view of this, the main purpose of the present invention is to provide a device and a method for eliminating the terminal, which can be effectively suppressed in both the uplink direction and the downlink direction, so that it is clear below.
到上 目的， 本 的 木方案是 的  For the purpose of the purpose, the wood plan is
本 提供了 消除 的裝置， 裝置包括 上行 抑制 、 提取 、 反向 其中，  This apparatus provides means for elimination, including up-down suppression, extraction, and reversal.
上行 抑制 ， 于 上行 中的 抑制  Upside suppression, suppression in the uplink
提取 ， 于 的互相 提取  Extract , extract each other
反向 ， 于將 提取 所提取的 特換 成反向 ， 將 反向 下行 。  In the opposite direction, the extracted extras are reversed and will be reversed.
上 方案中， 裝置近包括 丙路 凡、 前 、 域性 消除 、 介增益 、 介上行 抑制 、 介非 域性 消除 、 通路切換探測器 其中，  In the above scheme, the device includes a C-channel, a pre-domain, a domain cancellation, a media gain, a mediation suppression, a non-domain cancellation, and a path switching detector.
凡， 于接收上行 ， 包括上行 音信 和上行 前 ， 分別連接于 凡， 分別 于 凡 接收的上行 似 大和 似/ 特 ， 濾除低  Wherever, before receiving the uplink, including the uplink message and the uplink, respectively, connected to the fan, respectively, the received uplinks appear like the sum and / / special, filtering low
增益 ， 于 路上行 的增益  Gain, gain on the uplink
非域性 消除 ， 于消除 中的非域性  Non-domain elimination, non-domain in elimination
域性 消除 ， 于消除 中的域性  Domain elimination, domain elimination
通路切換探測器， 于 上行 音信 的探測決定上行 抑制 和 提取 的工作。 上 方案中， 通路切換探測器決定上行 抑制 和 The path switching detector detects the uplink suppression and extraction in the detection of the uplink audio. In the above scheme, the path switching detector determines the uplink suppression and
提取 的工作， 休 上行 音信 存在 ， 上行 抑制 工作 上行 音信 不存在 ， 提取 工作。 The extracted work, the idle uplink message exists, the uplink suppression work, the uplink message does not exist, and the extraction work.
上 方案中， 凡 同的 使得 接收到的 路上行 音信 特性具有 ， 而使 接收到的 路上行  In the above scheme, the same way that the received uplink information of the road has the characteristics, and the received road is uplinked.
特性 致。 Characteristics.
本 近提供了 消除 的方法， 方法包括  This method provides a means of elimination, including
在上行方向， 抑制 凡接收到的上行 中的  In the upstream direction, suppress the received uplink
在下行方向， 將所提取的 特換成反向 ， 再 將 反向 下行 。  In the downstream direction, the extracted features are reversed and then reversed.
上 方案中， 提取的 的互相 提取  In the above scheme, the extracted ones are extracted from each other.
。  .
上 方案中， 凡接收到上行 ， 方法 步包括 吋友 凡接收到的上行 似 大 理和 似/ 特 ， 消除低 。  In the above scheme, when the uplink is received, the method step includes the uplink and the like that are received by the friend, and the elimination is low.
上 方案中， 克風接收到的上行 似 大和 似/ 特 ， 方法 步包括 探測上行 音信 是否存在， 果上行 音信 存在， 則消除上行 中的 否則， 提取  In the above scheme, the uplink received by the gram wind seems to be similar to the sum, and the method step includes detecting whether the uplink message exists or not, and if the uplink message exists, the uplink is eliminated, otherwise, the extraction is performed.
消除 。  Eliminate.
上 方案中， 消除 包括 消除 中的域性 及 非域性 。  In the above scheme, the elimination includes the domain and non-domain in the elimination.
上 方案中， 反向 下行 ， 方法 近包括 瑜出 在 耳的 中， 中的反向  In the above scheme, the reverse down, the method includes the reverse in the middle of the ear,
本 的 相互 抵消。  This offsets each other.
本 所提供的消除 的裝置及方法， 在 終端的不同 位置分別 路以上的 凡， 在上行方向， 抑制 凡接收到的上行 中的 在下行方向， 將所提取的 特換成反 向 ， 再將所述反向 下行 在 至 耳的 中， 耳 的 中的 反向 相互抵消， 而消除了本方瑜 中的 ， 有效抑制了 本 效果的影 。 The device and method for elimination provided by the company are different in the terminal Where the position is above the path, in the uplink direction, suppressing the received uplink in the downstream direction, the extracted special is reversed, and then the reverse is in the middle of the ear, in the ear The reverses cancel each other out, and the elimination of the original ones effectively suppresses the effect of this effect.
用本 的裝置及方法， 既能在上行方向有效的抑制 ， 清楚本 能在下行方向有效的抑制 ， 使本 不受 的 ， 清楚 ， 而 提供更好的 ， 用戶以良好的使用休 。 說明 With the device and the method, the effective suppression can be effectively performed in the upward direction, and the effective suppression in the downward direction can be clearly clarified, so that the present is not clear and clear, and the user is provided with better use. Description
1力本 消除 的裝置原理 1 device principle of elimination
2力本 消除 的方法流程 2 method of elimination
3力本 消除 的 終端 示意 。 休 方式  3 The terminal of the elimination is indicated. Hugh way
本 的基本思想是 在 終端的不同位置分別 路以上 的 凡， 在上行方向， 抑制 凡接收到的上行 中的  The basic idea of this is to separate the above and above the different positions of the terminal, and in the uplink direction, suppress the received uplink.
在下行方向， 將所提取的 特換成反向 ， 再將 反向 下行 。 In the downstream direction, the extracted features are reversed and then reversed.
本 提供的 消除 的裝置， 1 所示， 裝置包括 友克凡1和 凡2、前 3和前 4、增益 5、 非域性 消除 6、 上行 抑制 7、 域性 消除 8和域性 消除 9、 提取 10、 反向 11、 通路切換探測 器 12、 羊 13 其中， 凡1和 凡2， 于接收上行 ， 包括上行 音信 和上行 ， 般在 ， 可使 凡相隔 ， 使得 凡 接收到的上行 音信 特性具有較大 ， 而使 接收到的上行 特性基本 致， 以便于 的提取 The apparatus provided by the present invention, as shown in Fig. 1, includes: 友克凡1和凡2, front 3 and front 4, gain 5, non-domain elimination 6, uplink suppression 7, domain elimination 8 and domain elimination 9, Extract 10, reverse 11, path switching detector 12, sheep 13 where Where 1 and 2, on the receiving uplink, including the uplink audio and uplink, the general, can be separated, so that the received uplink audio characteristics are larger, so that the received uplink characteristics are basically, easy to extract
前 3和前 4， 分別連接 凡1和 凡2， 其 中前 3和前 4作用 致， 分別 于 凡 接收的上行 似 大和 似/ 特 ， 上行 高 濾 波， 以濾除低 般， 低 頻率低于 30 z的 增益 5， 于分別 路上行 的增益即 大倍  The first 3 and the first 4 are respectively connected to Fan 1 and Fan 2, of which the first 3 and the first 4 are respectively caused by the upward and large analogy of the received uplink, and the uplink is high filtered to filter out the low, low frequency is lower than 30. The gain of z is 5, and the gain of the uplink is large
， 使 路上行 的 大倍教基本 致， 路上行的 的 特性 致， 以便 的抑制  To make the road up the basic education, the characteristics of the road up, so that the suppression
非域性 消除 6， 于消除 中的非域性  Non-domain elimination 6, non-domain in elimination
， 是由下行 羊 13 ， 凡作力上行 音信 接收而形成的  , is formed by the descending sheep 13 , where the effort is received by the uplink
上行 抑制 7， 于 上行 中的 抑制 域性 消除 8和域性 消除 9， 者的作用相同， 分別連 接于前 和下行 同， 于消除 中的域性  Upward suppression 7, suppression of domain cancellation in the uplink 8 and domain elimination 9, the same effect, respectively connected to the front and the downlink, the domain in the elimination
提取 10， 于 的互相 提取  Extract 10, and extract each other
反向 11， 于將 提取 10所提取的  Reverse 11, will extract 10 extracted
反向 ， 將得到的反向 下行  Reverse, will get the reverse down
通路切換探測器 12， 于 上行 音信 的探測決定上行 抑 制 7和 提取 10的工作 休的， 果上行 音信 存在， 則上行 抑制 7工作 果上行 音信 不存在， 則 提取 10 羊 13， 于 反向 和下行 的 。 于上 裝置， 本 提出了 消除 的方法， 2所示， 方法包括以下步驟 The path switching detector 12 determines the uplink suppression 7 and the extraction 10 for the operation of the uplink audio signal. If the uplink audio message exists, the uplink suppression 7 working fruit uplink information does not exist, and then 10 is extracted. Sheep 13, in the reverse and down. In the above device, the method of elimination is proposed, 2, the method includes the following steps
步驟201 凡接收的上行 初步  Step 201 Where the received uplink is preliminary
本步驟中， 凡工作 即 接收到上行 ， 其中， 接收到的上 行 中包括上行 音信 和上行 前 凡 接收到的上行 似 大 理和 似/ 特 ， 30 z以 下的低 高 濾波， 以消除 z以下的低  In this step, the uplink is received when the work is received, and the received uplink includes the uplink audio message and the uplink and the like before the uplink, and the low-high filtering below 30 z, to eliminate the low below z.
。  .
本 中， 在 終端的不同位置 置有 凡， 即 凡1和 凡2，相 的，在 凡1 凡1的前 3， 在 凡2 凡2的前 4，分別將接收到的上行  In this case, there are places in the different positions of the terminal, that is, where 1 and 2, the phase, in the first 3 of the 1st, and the 2nd of the 2, 2, respectively, will receive the uplink
似 大 理和 似/數字特 ， 30 z以下的低  Like Dali and like/digital, low below 30 z
高 濾波， 以消除30 z以下的低 。  High filtering to eliminate low below 30 z.
步驟202 探測上行 音信 是否存在， 果存在， 則特至步驟203 果不存在， 則 執行步驟205和步驟206  Step 202: Detect whether the uplink audio message exists, if yes, if it is not in step 203, perform step 205 and step 206.
本步驟中， 不考慮 都不 的特殊情況， 即任何 同都 有 方 在 ， 也就是說， 或者存在上行 音信 或者存在下行 音信 。 由通 路切換探測器 12探測上行 音信 是否存在， 果上行 音信 存在， 終端的本方 在 ， 則特至步驟203 果上行 音信 不存 在， 表明 終端的本 沒有 ， 存在下行 音信 ， 則 執行 步驟205和步驟206  In this step, the special case is not considered, that is, any one of them is in the same way, that is, there is an uplink message or a downlink message. The path switching detector 12 detects whether the uplink audio message exists. If the uplink audio message exists, the local party of the terminal is present, then the uplink voice message does not exist in step 203, indicating that the terminal does not exist, and there is a downlink voice message, then step 205 and steps are performed. 206
步驟203 204 消除上行 ， 消除 的上行 ， 特至步驟209  Step 203 204: cancel the uplink, cancel the uplink, and go to step 209.
本步驟中， 由于 凡 同有 定 ， 在上行方向， 本 使用 者 凡 近， 則 凡接收到的 音信 強度較強， 所以 凡接收到的 音信 的 特性有較大 ， 而接收到的 的 特性 基本 致 那 ， 凡 1 的前 3和 凡2的前 4分別 上行 似 大 ， 由于 前 的 敏度存在 ， 似 大 的上行 的大小存在 較大 ， 再利用增益 5 似 大 的上行 的增益即 大 倍 ， 使 路上行 的 大倍教基本 致， 了 大 的 的 特性 致 將 增益 的上行 上行 抑 制 7 抑制， 將消除 的上行 In this step, since the same is true, in the upstream direction, this use Wherever you are close, the received message has a strong intensity, so the characteristics of the received message are large, and the received characteristics basically cause that, the first 3 of the 1 and the top 4 of the 2 are respectively ascending. Large, because the former sensitivity exists, the size of the seemingly large uplink is large, and the gain of the upward gain of the gain 5 is large, which makes the road ascending to the basics, and the large characteristics will be Gain's upstream up-suppression 7 suppression, will eliminate the upstream
， 使 清楚本 的 。 其中， 在上行 抑制 7 中 何 的抑制是現有 木， 里不做 。  To make this clear. Among them, the suppression of the upside suppression 7 is existing wood, and it is not done.
步驟205 消除 ， 返 步驟203 步驟 步驟206 執行  Step 205 is eliminated, returning to step 203, step 206, executing
， 消除 包括消除域性 和消除非域性  Elimination includes elimination of domain and elimination of non-domain
本步驟中， ， 下行 音信 終端的 羊 13 ， 很可能 1和 凡2再次接收， 作力上行 音信 重 新 ， 而使 在 段 同 到 己的  In this step, the sheep 13 of the downlink audio terminal, it is likely that 1 and 2 are received again, and the uplink information is renewed, so that the same is true in the segment.
羊 13 凡再次接收的 音信 。 Sheep 13 Anyone who receives the message again.
戶生 ， 域性 消除 8和域性 消除 9將 的方法分別消除 路 中的域性 。 羊 13 的非域性特性， 羊 13 出的 音信 戶生 定的非域性 ， 所以被 凡 1和 凡2再次接收 形成的 中也 存在 定的非域性 ， 通 非域性 消除 6 中 的 ， 將非域 性 消除， 而通 域性 消除 8、 域性 消除 9和非 域性 消除 6共同 到消除 的作用， 使 折不 己的 。 Household, domain elimination 8 and domain elimination 9 will eliminate the domain in the way. The non-domain characteristics of sheep 13 and the non-domain nature of the music letter from the sheep 13 are also determined to be non-domain by the 1 and 2, and the non-domain elimination. Eliminate non-domain, and eliminate domain 8, domain elimination 9 and non-domain elimination 6 together to eliminate the role of .
由于 于上行 音信 ， 所以通路切換探測器 12探測到上行 音信 存在， 上行 抑制 7工作， 在消除 ， 返 步驟 203，再次 上行 抑制 7 中的 抑制， 以消除 中的 。 其中， 消除域性 的 方法和消除 非域性 戶所 的 于現有 木， 里不做 。  Due to the uplink signal, the path switching detector 12 detects the presence of the uplink signal, and the uplink suppression 7 operates, and in the cancellation, returns to step 203, and again suppresses the suppression in the uplink 7 to eliminate the medium. Among them, the method of eliminating the domain and eliminating the non-domain households in the existing wood, do not do.
步驟206 提取 ， 步驟 步驟205 執行  Step 206 extraction, step step 205 is performed
本步驟中， 通路切換探測器 12探測上行 音信 不存在 ， 表明此 終端的本 沒有 ， 而 在 ， 即存在下行 音信 ， 凡接收到的上行 的 特性基本 致， 提取 10可以 的互相 ， 提取出 特性基本 致的  In this step, the path switching detector 12 detects that the uplink audio message does not exist, indicating that the terminal does not exist, and that there is a downlink audio message, and the received uplink characteristics are basically obtained, and the extracted 10 can be mutually mutually extracted, and the basic characteristics are extracted. To
。  .
步驟207 208 將所提取的 特 反向 ，再 將反向 下行 相 ，  Step 207 208, the extracted special reverse direction, and then the reverse downlink phase,
本步驟中， 將 提取 10提取出的 反向 11形成反向 ， 將核反向 下行 相 ， 將此 羊 13 ， 則 在 耳的 中， 中的反向 本 的 相互 抵 消， 而消除了本方瑜 中的 ， 抑制了本 的  In this step, the reverse 11 extracted by the extraction 10 is reversed, and the nuclear reverse phase is reversed, and the sheep 13 is neutralized in the middle of the ear, and the square is eliminated. Inhibited
本 效果的影 ， 而使本 在 下也 的 。  The effect of this effect, and the original is also the next.
步驟209 是否 ， 若未 則返 步驟202， 若 ， 則 前赴 流程。 If the step 209 is not, then if the process returns to step 202, if yes, go to the process.
3是按照本 方法 的消除 的 終端 示意 ， 核示意 折疊 。 3中， 31 終端的受 的出戶 位置32 凡2的 音孔位置 33 終端的兔 的 音孔位置 34 凡1的位置 1所示的 羊 包括了 3中的31 的出 戶 和33兔 的 音孔。 3 is a schematic representation of the elimination of the terminal in accordance with the method, the core indicating the folding. 3, 31 Terminal's receiving location 32 Where 2 sound hole position 33 Terminal's sound hole position of the rabbit 34 The sheep shown in position 1 of 1 includes the 31 out of 3 and the sound hole of 33 rabbits.
中， 不 局限于 凡， 也可以 以上的 凡， 則在利用 的互相 提取 ， 更力容易提取 。  In the case of the above, it is also possible to extract from each other and use it more easily.
以上 ， 力本 的較佳 而已， 非 于限定本 的保 ， 凡在本 的精神和原則 內所作的任何修 、 等同替換和 等， 包含在本 的保 內。  The above is better than the limit, and any repairs, equivalents, and the like made in the spirit and principles of this article are included in this warranty.

Claims

要求 Claim
1、 消除 的裝置， 其特 在于， 裝置包括 上行 抑 制 、 提取 、 反向 其中，  1. A device for elimination, the device comprising: uplink suppression, extraction, reverse, wherein
上行 抑制 ， 于 上行 中的 抑制  Upside suppression, suppression in the uplink
提取 ， 于 的互相 提取  Extract , extract each other
反向 ， 于將 提取 所提取的 特換 成反向 ， 將 反向 下行 。  In the opposite direction, the extracted extras are reversed and will be reversed.
2、 要求 1所述的裝置， 其特 在于， 裝置近包括 丙路 凡、 前 、 域性 消除 、 增益 、 上行 抑制 、 非域性 消除 、 通路切換探測器 其中，  2. The apparatus of claim 1, wherein the apparatus comprises: a peripheral path, a front domain, a domain cancellation, a gain, an uplink suppression, a non-domain cancellation, and a path switching detector.
凡， 于接收上行 ， 包括上行 音信 和上行 前 ， 分別連接于 凡， 分別 于 凡 接收的上行 大和 似/ 特 ， 濾除低  Where, before receiving the uplink, including the uplink audio message and the uplink, respectively, connected to the Fan, respectively, the received uplink and the similarity / special, filtering low
增益 ， 于 路上行 的增益  Gain, gain on the uplink
非域性 消除 ， 于消除 中的非域性  Non-domain elimination, non-domain in elimination
域性 消除 ， 于消除 中的域性  Domain elimination, domain elimination
通路切換探測器， 于 上行 音信 的探測， 決定上行 抑 制 和 提取 的工作。 The path switching detector detects the uplink suppression and extraction in the detection of the upstream message.
3、 要求2所述的裝置， 其特 在于， 通路切換探測器決 定上行 抑制 和 提取 的工作， 休 上行 音信 存在 ， 上行 抑制 工作 上行 音信 不存在 ， 提取 工作。  3. The device of claim 2, wherein the path switching detector determines the uplink suppression and extraction work, the idle uplink message exists, and the uplink suppression operation uplink message does not exist and the extraction work.
4、 要求2所述的裝置， 其特 在于， 凡 同的 使得 接收到的 路上行 音信 特性具有 ， 而 接收到 的 路上行 特性 致。 4. The device of claim 2, wherein the same is true for the received uplink audio signal characteristics, and the received The road's uplink characteristics are caused.
5、 消除 的方法， 其特 在于， 方法包括  5. The method of elimination, the method of which includes
在上行方向， 抑制 凡接收到的上行 中的  In the upstream direction, suppress the received uplink
在下行方向， 將所提取的 特換成反向 ， 再 將 反向 下行 。  In the downstream direction, the extracted features are reversed and then reversed.
6、 要求5所述的方法， 其特 在于， 提取的  6. The method of claim 5, characterized in that the extracted
的互相 提取 。  The mutual extraction.
7、 要求5或6 的方法， 其特 在于， 凡接收到上行 ， 方法 步包括 吋友 凡接收到的上行 似 大 理和 似/ 特 ， 消除低 。  7. The method of claim 5 or 6 is characterized in that, when the uplink is received, the method step includes the uplink and the like that are received by the friend, and the elimination is low.
8、 要求7所述的方法， 其特 在于， 凡接收到的上行 似 大和 似/ 特 ， 方法 步包括 探測上行 音信 是否存在， 果上行 音信 存在， 則消除上行 中的  8. The method of claim 7, wherein the method includes the following steps: detecting whether the uplink message exists or not, and if the uplink message exists, eliminating the uplink.
否則， 提取 消除 。 Otherwise, the extraction is eliminated.
9、 要求8 的方法， 其特 在于， 消除 包括 消除 中的域性 及非域性 。  9. The method of claim 8, which is characterized by the elimination of domain and non-domain in the elimination.
10、 要求 5 的方法， 其特 在于， 反向  10. The method of claim 5, which is characterized by the reverse
下行 ， 方法近包括 瑜出 中的反向  Downward, the method includes the reverse of the yoga
本 的 相互 抵消。  This offsets each other.
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