JPS60108048U - Noise insertion device - Google Patents
Noise insertion deviceInfo
- Publication number
- JPS60108048U JPS60108048U JP12435684U JP12435684U JPS60108048U JP S60108048 U JPS60108048 U JP S60108048U JP 12435684 U JP12435684 U JP 12435684U JP 12435684 U JP12435684 U JP 12435684U JP S60108048 U JPS60108048 U JP S60108048U
- Authority
- JP
- Japan
- Prior art keywords
- noise
- pseudo
- power
- level
- signal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の実施例を示すブロック線図、第２図ａ
〜第２図ｆは各部の波形を示す波形図で、第２図ａは送
信側の送話器から送出される信号Ｓへ第２図すは入力端
子１に供給される音声信号Ｓ１、第２図Ｃは音声バース
トの存在を表わす状態信号Ｓ２、第２図ｄは音声バース
トの存在しない部分を表わす状態信号Ｓ３、第２図ｅは
アンドゲート８を介した擬似雑音Ｓ４、第２図ｆは出力
信号穐を夫々示す。′また第３図は擬似雑音発生器を更
に詳細に示すブロック線図である。
図面中、３は電力計算器、５はレベル設定器、６は擬似
雑音発生器である。
補正 昭５９．９．７
実用新案登録請求の範囲を次のように補正する。
Ｏ実用新案登録請求の範囲
送信信号のうち音声が存在する部分を音声バーストとし
て離散的に受信し、受信した音声バーストと次の音声バ
ーストとの間に擬似雑音を挿入しながら出力端子へ送出
する雑音挿入装置において、受信した音声バーストの末
尾近傍の所定の時間区間における信号電力を計算する電
力計算器と、 ランダムパターンを するためのシ
フ１ど乏冬！炙内色（耀音信号成分を発生する擬似雑音
発生器と、この擬似雑音発生器の出力電力レベルを前記
電力計算器により検知された電力レベルと略同−レベル
に設定するために該電力レベルに対応して前記シフ−ト
レジスタの段数を決定するレベル設定器とを有し、この
レベル設定器により制御された前記擬似雑音発生器の出
力信号を前記擬似雑音とすることを特徴とする雑音挿入
装置。Figure 1 is a block diagram showing an embodiment of the present invention, Figure 2a
- Fig. 2 f is a waveform diagram showing the waveform of each part, Fig. 2 a is a waveform diagram showing the signal S sent from the transmitting side transmitter, Fig. 2 is the audio signal S1 supplied to the input terminal 1, FIG. 2C shows the state signal S2 representing the presence of a speech burst, FIG. 2D shows the state signal S3 representing the part where no speech burst exists, FIG. indicate the output signals, respectively. 'Also, FIG. 3 is a block diagram showing the pseudo noise generator in more detail. In the drawing, 3 is a power calculator, 5 is a level setter, and 6 is a pseudo noise generator. Amendment September 7, 1982 The scope of claims for utility model registration is amended as follows. O Utility Model Registration Claims A portion of the transmitted signal in which voice exists is discretely received as a voice burst, and is sent to an output terminal while inserting pseudo noise between the received voice burst and the next voice burst. The noise insertion device includes a power calculator that calculates the signal power in a predetermined time interval near the end of the received voice burst, and a Schiff 1 Dobo Fuyu! for generating random patterns. a pseudo-noise generator that generates a bright signal component; and a power level for setting the output power level of the pseudo-noise generator to approximately the same level as the power level detected by the power calculator. and a level setter that determines the number of stages of the shift register in accordance with the above, and an output signal of the pseudo noise generator controlled by the level setter is used as the pseudo noise. Device.
Claims (1)
て離散的に受信し、受信した音声バーストと次の音声バ
ーストとの間に擬似雑音を挿入しながら出力端子へ送出
する雑音挿入装置において、受信した音声バーストの末
尾近傍で雑音信号のみが存在する所定の時間区間におけ
る信号電力を計算する電力計算器と、雑音信号成分を発
生する擬似雑音発生器と、この擬似雑音発生器の出力電
力レベルを前記電力計算器により検知された電力レベル
と略同−レベルに設定するためのレベル設定器とを有し
、このレベル設定器により制御された前記擬似雑音発生
器の出力信号を前記擬似雑音とすることを特徴とする雑
音挿入装置。A noise insertion device that discretely receives a portion of a transmitted signal in which voice exists as a voice burst, and transmits it to an output terminal while inserting pseudo noise between the received voice burst and the next voice burst. A power calculator that calculates the signal power in a predetermined time interval in which only noise signals exist near the end of a voice burst, a pseudo-noise generator that generates a noise signal component, and an output power level of the pseudo-noise generator that is A level setter is provided for setting the power level to approximately the same level as the power level detected by the power calculator, and the output signal of the pseudo noise generator controlled by the level setter is used as the pseudo noise. A noise insertion device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12435684U JPS60108048U (en) | 1984-08-16 | 1984-08-16 | Noise insertion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12435684U JPS60108048U (en) | 1984-08-16 | 1984-08-16 | Noise insertion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60108048U true JPS60108048U (en) | 1985-07-23 |
| JPH0112446Y2 JPH0112446Y2 (en) | 1989-04-11 |
Family
ID=30683084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12435684U Granted JPS60108048U (en) | 1984-08-16 | 1984-08-16 | Noise insertion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60108048U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63124636A (en) * | 1986-11-14 | 1988-05-28 | Kokusai Denshin Denwa Co Ltd <Kdd> | Pseudo signal insertion system in voice semiconductor system |
| JPH05191149A (en) * | 1992-01-08 | 1993-07-30 | Japan Radio Co Ltd | Multi-channel non-correlative noise generating device |
-
1984
- 1984-08-16 JP JP12435684U patent/JPS60108048U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63124636A (en) * | 1986-11-14 | 1988-05-28 | Kokusai Denshin Denwa Co Ltd <Kdd> | Pseudo signal insertion system in voice semiconductor system |
| JPH05191149A (en) * | 1992-01-08 | 1993-07-30 | Japan Radio Co Ltd | Multi-channel non-correlative noise generating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0112446Y2 (en) | 1989-04-11 |
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