CH572650A5 - - Google Patents
Info
- Publication number
- CH572650A5 CH572650A5 CH1862872A CH1862872A CH572650A5 CH 572650 A5 CH572650 A5 CH 572650A5 CH 1862872 A CH1862872 A CH 1862872A CH 1862872 A CH1862872 A CH 1862872A CH 572650 A5 CH572650 A5 CH 572650A5
- Authority
- CH
- Switzerland
- Prior art keywords
- signal
- ciphered
- speech
- signal components
- signals
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 abstract 7
- 230000015572 biosynthetic process Effects 0.000 abstract 3
- 238000003786 synthesis reaction Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
-
- 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
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Radio Relay Systems (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1862872A CH572650A5 (fr) | 1972-12-21 | 1972-12-21 | |
DE2264092A DE2264092A1 (de) | 1972-12-21 | 1972-12-29 | Verfahren und anlage zum senden und empfangen von in chiffrierter form uebertragenen elektrischen sprachsignalen |
US05/425,608 US3959592A (en) | 1972-12-21 | 1973-12-17 | Method and apparatus for transmitting and receiving electrical speech signals transmitted in ciphered or coded form |
CA188,364A CA998483A (en) | 1972-12-21 | 1973-12-18 | Method and apparatus for transmitting and receiving electrical speech signals transmitted in ciphered or coded form |
GB5958473A GB1459440A (en) | 1972-12-21 | 1973-12-21 | Method and apparatus for transmitting and receiving electrical speech signals transmitted in ciphered or coded form |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1862872A CH572650A5 (fr) | 1972-12-21 | 1972-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH572650A5 true CH572650A5 (fr) | 1976-02-13 |
Family
ID=4434286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1862872A CH572650A5 (fr) | 1972-12-21 | 1972-12-21 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3959592A (fr) |
CA (1) | CA998483A (fr) |
CH (1) | CH572650A5 (fr) |
DE (1) | DE2264092A1 (fr) |
GB (1) | GB1459440A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105900168A (zh) * | 2013-02-14 | 2016-08-24 | 杜比实验室特许公司 | 使用估计的空间参数的音频信号增强 |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4379205A (en) * | 1979-06-22 | 1983-04-05 | Bell Telephone Laboratories, Incorporated | Analog signal scrambling system |
US4393276A (en) * | 1981-03-19 | 1983-07-12 | Bell Telephone Laboratories, Incorporated | Fourier masking analog signal secure communication system |
US4908785A (en) * | 1985-08-16 | 1990-03-13 | The Boeing Company | Data compression method for telemetry of vibration data |
US4972474A (en) * | 1989-05-01 | 1990-11-20 | Cylink Corporation | Integer encryptor |
WO1991006944A1 (fr) * | 1989-10-25 | 1991-05-16 | Motorola, Inc. | Technique de compression de forme d'onde vocale |
US4972480A (en) * | 1990-01-10 | 1990-11-20 | General Dynamics (Space Systems Division) | Holographic communications device and method |
US5712915A (en) * | 1995-06-07 | 1998-01-27 | Comsat Corporation | Encrypted digital circuit multiplication system |
WO1998052318A1 (fr) * | 1997-03-14 | 1998-11-19 | Mobile Broadcasting Corporation | Systeme et procede de transmission de donnees dans la bande de frequence am |
US6507804B1 (en) | 1997-10-14 | 2003-01-14 | Bently Nevada Corporation | Apparatus and method for compressing measurement data corelative to machine status |
US6026348A (en) * | 1997-10-14 | 2000-02-15 | Bently Nevada Corporation | Apparatus and method for compressing measurement data correlative to machine status |
US6718038B1 (en) * | 2000-07-27 | 2004-04-06 | The United States Of America As Represented By The National Security Agency | Cryptographic method using modified fractional fourier transform kernel |
EP1559236A4 (fr) * | 2002-10-16 | 2007-12-19 | Acewavetech Co Ltd | Procede de traitement par chiffrement et dispositif pour signaux vocaux |
US20050031016A1 (en) * | 2003-08-04 | 2005-02-10 | Lowell Rosen | Epoch-variant holographic communications apparatus and methods |
US20050031051A1 (en) * | 2003-08-04 | 2005-02-10 | Lowell Rosen | Multiple access holographic communications apparatus and methods |
US20050100076A1 (en) * | 2003-08-04 | 2005-05-12 | Gazdzinski Robert F. | Adaptive holographic wideband communications apparatus and methods |
US20050041758A1 (en) * | 2003-08-04 | 2005-02-24 | Lowell Rosen | Holographic ranging apparatus and methods |
US20050084032A1 (en) * | 2003-08-04 | 2005-04-21 | Lowell Rosen | Wideband holographic communications apparatus and methods |
US20050084033A1 (en) * | 2003-08-04 | 2005-04-21 | Lowell Rosen | Scalable transform wideband holographic communications apparatus and methods |
JP4707198B2 (ja) * | 2006-10-19 | 2011-06-22 | 富士通株式会社 | 情報検索プログラム、該プログラムを記録した記録媒体、情報検索方法、および情報検索装置 |
US9640185B2 (en) * | 2013-12-12 | 2017-05-02 | Motorola Solutions, Inc. | Method and apparatus for enhancing the modulation index of speech sounds passed through a digital vocoder |
CN104157287B (zh) * | 2014-07-29 | 2017-08-25 | 广州视源电子科技股份有限公司 | 音频处理方法及装置 |
WO2016142002A1 (fr) * | 2015-03-09 | 2016-09-15 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Codeur audio, décodeur audio, procédé de codage de signal audio et procédé de décodage de signal audio codé |
DE102017221576A1 (de) * | 2017-11-30 | 2019-06-06 | Robert Bosch Gmbh | Verfahren zur Mittelung von pulsierenden Messgrößen |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2640880A (en) * | 1953-06-02 | Speech communication system | ||
US2672512A (en) * | 1949-02-02 | 1954-03-16 | Bell Telephone Labor Inc | System for analyzing and synthesizing speech |
US2627541A (en) * | 1951-06-20 | 1953-02-03 | Bell Telephone Labor Inc | Determination of pitch frequency of complex wave |
SE305470B (fr) * | 1967-06-21 | 1968-10-28 | Ericsson Telefon Ab L M |
-
1972
- 1972-12-21 CH CH1862872A patent/CH572650A5/xx not_active IP Right Cessation
- 1972-12-29 DE DE2264092A patent/DE2264092A1/de active Pending
-
1973
- 1973-12-17 US US05/425,608 patent/US3959592A/en not_active Expired - Lifetime
- 1973-12-18 CA CA188,364A patent/CA998483A/en not_active Expired
- 1973-12-21 GB GB5958473A patent/GB1459440A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105900168A (zh) * | 2013-02-14 | 2016-08-24 | 杜比实验室特许公司 | 使用估计的空间参数的音频信号增强 |
Also Published As
Publication number | Publication date |
---|---|
CA998483A (en) | 1976-10-12 |
GB1459440A (en) | 1976-12-22 |
US3959592A (en) | 1976-05-25 |
DE2264092A1 (de) | 1974-06-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |