DD105697A5 - - Google Patents
Info
- Publication number
- DD105697A5 DD105697A5 DD168996A DD16899673A DD105697A5 DD 105697 A5 DD105697 A5 DD 105697A5 DD 168996 A DD168996 A DD 168996A DD 16899673 A DD16899673 A DD 16899673A DD 105697 A5 DD105697 A5 DD 105697A5
- Authority
- DD
- German Democratic Republic
Links
Classifications
-
- 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
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (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)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2208805A DE2208805A1 (de) | 1972-02-24 | 1972-02-24 | Verfahren zur uebertragung von breitbandigen tonsignalen |
| DE19722218154 DE2218154A1 (de) | 1972-04-14 | 1972-04-14 | Verfahren zur uebertragung von breitbandigen tonsignalen |
| DE19722250094 DE2250094A1 (de) | 1972-10-12 | 1972-10-12 | Uebertragungssystem fuer die uebertragung breitbandiger tonsignale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD105697A5 true DD105697A5 (hu) | 1974-05-05 |
Family
ID=27184138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD168996A DD105697A5 (hu) | 1972-02-24 | 1973-02-22 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3875341A (hu) |
| JP (1) | JPS48100004A (hu) |
| AU (1) | AU5258573A (hu) |
| DD (1) | DD105697A5 (hu) |
| FR (1) | FR2173328B1 (hu) |
| HU (1) | HU166106B (hu) |
| IT (1) | IT979348B (hu) |
| NL (1) | NL7302657A (hu) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4051331A (en) * | 1976-03-29 | 1977-09-27 | Brigham Young University | Speech coding hearing aid system utilizing formant frequency transformation |
| US4170719A (en) * | 1978-06-14 | 1979-10-09 | Bell Telephone Laboratories, Incorporated | Speech transmission system |
| US4433604A (en) * | 1981-09-22 | 1984-02-28 | Texas Instruments Incorporated | Frequency domain digital encoding technique for musical signals |
| DE3235804A1 (de) * | 1982-09-28 | 1984-03-29 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren und schaltungsanordnung zur bandbreitenreduzierten sprachuebertragung |
| US4891840A (en) * | 1986-03-10 | 1990-01-02 | American Telephone And Telegraph Company, At&T Bell Laboratories | Multi-channel signal transmission |
| DE3703143A1 (de) * | 1987-02-03 | 1988-08-11 | Thomson Brandt Gmbh | Verfahren zur uebertragung eines audiosignals |
| US4979188A (en) * | 1988-04-29 | 1990-12-18 | Motorola, Inc. | Spectrally efficient method for communicating an information signal |
| US5559900A (en) * | 1991-03-12 | 1996-09-24 | Lucent Technologies Inc. | Compression of signals for perceptual quality by selecting frequency bands having relatively high energy |
| FR2741744B1 (fr) * | 1995-11-23 | 1998-01-02 | Thomson Csf | Procede et dispositif d'evaluation de l'energie du signal de parole par sous bande pour vocodeur bas debits |
| CA2184541A1 (en) * | 1996-08-30 | 1998-03-01 | Tet Hin Yeap | Method and apparatus for wavelet modulation of signals for transmission and/or storage |
| US7823513B2 (en) * | 2003-07-08 | 2010-11-02 | National Steel Car Limited | Rail road car truck |
| US20140035747A1 (en) * | 2012-08-02 | 2014-02-06 | Sennco Solutions Inc. | Dongle, system, and/or method for securing an electronic device |
| TWI457024B (zh) * | 2012-09-04 | 2014-10-11 | Realtek Semiconductor Corp | 頻寬選擇方法 |
| US10219090B2 (en) * | 2013-02-27 | 2019-02-26 | Analog Devices Global | Method and detector of loudspeaker diaphragm excursion |
| US9980068B2 (en) | 2013-11-06 | 2018-05-22 | Analog Devices Global | Method of estimating diaphragm excursion of a loudspeaker |
| US9813812B2 (en) | 2014-12-12 | 2017-11-07 | Analog Devices Global | Method of controlling diaphragm excursion of electrodynamic loudspeakers |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE594976C (de) * | 1932-02-27 | 1934-03-27 | Karl Otto Schmidt | Verfahren zur besseren Ausnutzung des UEbertragungsweges |
| US2840639A (en) * | 1952-12-31 | 1958-06-24 | Itt | Method and apparatus for signal presentation |
| US2817711A (en) * | 1954-05-10 | 1957-12-24 | Bell Telephone Labor Inc | Band compression system |
| US2957948A (en) * | 1956-07-20 | 1960-10-25 | Bell Telephone Labor Inc | Frequency band compression |
| NL245178A (hu) * | 1958-11-17 | |||
| US3246084A (en) * | 1960-08-26 | 1966-04-12 | Bolt Beranek & Newman | Method of and apparatus for speech compression and the like |
| DE1122581B (de) * | 1960-11-30 | 1962-01-25 | Telefunken Patent | Verfahren und Schaltungsanordnung zur angenaeherten Nachbildung der Kurzzeitspektren von nach dem Vocoderverfahren uebertragenen Sprachsignalen |
| NL272809A (hu) * | 1960-12-27 | |||
| DE1216373B (de) * | 1964-04-06 | 1966-05-12 | Ibm Deutschland | Verfahren und Anordnung zur Dynamikregelung in Vocodersystemen |
| US3349184A (en) * | 1965-05-17 | 1967-10-24 | Harvey L Morgan | Bandwidth compression and expansion by frequency division and multiplication |
| US3431362A (en) * | 1966-04-22 | 1969-03-04 | Bell Telephone Labor Inc | Voice-excited,bandwidth reduction system employing pitch frequency pulses generated by unencoded baseband signal |
| US3674939A (en) * | 1969-11-26 | 1972-07-04 | Fred A Brooks | Baseband pulse code modulation system |
| US3696298A (en) * | 1970-07-27 | 1972-10-03 | Kahn Res Lab | Audio signal transmission system and method |
-
1973
- 1973-02-22 US US334525A patent/US3875341A/en not_active Expired - Lifetime
- 1973-02-22 IT IT20680/73A patent/IT979348B/it active
- 1973-02-22 DD DD168996A patent/DD105697A5/xx unknown
- 1973-02-23 JP JP48021371A patent/JPS48100004A/ja active Pending
- 1973-02-23 HU HUIE557A patent/HU166106B/hu unknown
- 1973-02-26 NL NL7302657A patent/NL7302657A/xx unknown
- 1973-02-26 FR FR7306735A patent/FR2173328B1/fr not_active Expired
- 1973-02-26 AU AU52585/73A patent/AU5258573A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU5258573A (en) | 1974-08-29 |
| FR2173328B1 (hu) | 1976-11-05 |
| JPS48100004A (hu) | 1973-12-18 |
| HU166106B (hu) | 1975-01-28 |
| US3875341A (en) | 1975-04-01 |
| NL7302657A (hu) | 1973-08-28 |
| FR2173328A1 (hu) | 1973-10-05 |
| IT979348B (it) | 1974-09-30 |