CA2379973A1 - Method and apparatus supporting tdd/tty modulation over vocoded channels - Google Patents
Method and apparatus supporting tdd/tty modulation over vocoded channels Download PDFInfo
- Publication number
- CA2379973A1 CA2379973A1 CA002379973A CA2379973A CA2379973A1 CA 2379973 A1 CA2379973 A1 CA 2379973A1 CA 002379973 A CA002379973 A CA 002379973A CA 2379973 A CA2379973 A CA 2379973A CA 2379973 A1 CA2379973 A1 CA 2379973A1
- Authority
- CA
- Canada
- Prior art keywords
- bits
- sequence
- frame
- original
- vocoder
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 64
- 238000004891 communication Methods 0.000 claims abstract description 59
- 230000000694 effects Effects 0.000 claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- 238000012545 processing Methods 0.000 claims description 17
- 230000001965 increasing effect Effects 0.000 claims description 9
- 239000003623 enhancer Substances 0.000 claims description 7
- 230000002708 enhancing effect Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 abstract description 6
- 230000002411 adverse Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 206010011878 Deafness Diseases 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000001413 cellular effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- UPLPHRJJTCUQAY-WIRWPRASSA-N 2,3-thioepoxy madol Chemical compound C([C@@H]1CC2)[C@@H]3S[C@@H]3C[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@](C)(O)[C@@]2(C)CC1 UPLPHRJJTCUQAY-WIRWPRASSA-N 0.000 description 1
- IRLPACMLTUPBCL-KQYNXXCUSA-N 5'-adenylyl sulfate Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP(O)(=O)OS(O)(=O)=O)[C@@H](O)[C@H]1O IRLPACMLTUPBCL-KQYNXXCUSA-N 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- 208000032041 Hearing impaired Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
-
- 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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72475—User interfaces specially adapted for cordless or mobile telephones specially adapted for disabled users
- H04M1/72478—User interfaces specially adapted for cordless or mobile telephones specially adapted for disabled users for hearing-impaired users
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Multimedia (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Telephonic Communication Services (AREA)
- Time-Division Multiplex Systems (AREA)
- Dc Digital Transmission (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US36671499A | 1999-08-04 | 1999-08-04 | |
| US09/366,714 | 1999-08-04 | ||
| PCT/US2000/021441 WO2001011840A1 (en) | 1999-08-04 | 2000-08-03 | Method and apparatus supporting tdd/tty modulation over vocoded channels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2379973A1 true CA2379973A1 (en) | 2001-02-15 |
Family
ID=23444188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002379973A Abandoned CA2379973A1 (en) | 1999-08-04 | 2000-08-03 | Method and apparatus supporting tdd/tty modulation over vocoded channels |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP1198934A1 (uk) |
| JP (1) | JP2003506968A (uk) |
| KR (1) | KR20020037342A (uk) |
| CN (1) | CN1178438C (uk) |
| AU (1) | AU773419B2 (uk) |
| BR (1) | BR0012932A (uk) |
| CA (1) | CA2379973A1 (uk) |
| HK (1) | HK1047836B (uk) |
| IL (1) | IL147717A0 (uk) |
| MX (1) | MXPA02001199A (uk) |
| NO (1) | NO20020517L (uk) |
| RU (1) | RU2002105522A (uk) |
| UA (1) | UA70375C2 (uk) |
| WO (1) | WO2001011840A1 (uk) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR0313259A (pt) | 2002-08-06 | 2005-06-14 | Siemens Ag | Processamento de erros de informações úteis recebidas através de uma rede de comunicação |
| US9226123B2 (en) * | 2013-02-21 | 2015-12-29 | Telefonaktiebolaget L M Ericsson (Publ) | Limiting processing of calls as text telephony calls |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0596079B1 (en) * | 1992-05-20 | 2000-07-19 | Ultratec, Inc. | Telecommunication device operating under an enhanced tdd protocol |
| FI100932B (fi) * | 1995-04-12 | 1998-03-13 | Nokia Telecommunications Oy | Äänitaajuussignaalien lähetys radiopuhelinjärjestelmässä |
| WO1998027758A2 (en) * | 1996-12-19 | 1998-06-25 | Diva Communications | Methods and apparatus of providing transparency of dtmf signaling tones across a digital cellular voice channel |
| US6434198B1 (en) * | 1998-08-28 | 2002-08-13 | Lucent Technologies Inc. | Method for conveying TTY signals over wireless communication systems |
-
2000
- 2000-03-08 UA UA2002010288A patent/UA70375C2/uk unknown
- 2000-08-03 AU AU65238/00A patent/AU773419B2/en not_active Ceased
- 2000-08-03 RU RU2002105522/09A patent/RU2002105522A/ru not_active Application Discontinuation
- 2000-08-03 IL IL14771700A patent/IL147717A0/xx unknown
- 2000-08-03 BR BR0012932-1A patent/BR0012932A/pt not_active IP Right Cessation
- 2000-08-03 WO PCT/US2000/021441 patent/WO2001011840A1/en not_active Application Discontinuation
- 2000-08-03 CA CA002379973A patent/CA2379973A1/en not_active Abandoned
- 2000-08-03 EP EP00952564A patent/EP1198934A1/en not_active Withdrawn
- 2000-08-03 JP JP2001515594A patent/JP2003506968A/ja active Pending
- 2000-08-03 CN CNB008112487A patent/CN1178438C/zh not_active Expired - Fee Related
- 2000-08-03 KR KR1020027001541A patent/KR20020037342A/ko not_active Application Discontinuation
- 2000-08-03 MX MXPA02001199A patent/MXPA02001199A/es unknown
-
2002
- 2002-02-01 NO NO20020517A patent/NO20020517L/no not_active Application Discontinuation
- 2002-12-30 HK HK02109400.3A patent/HK1047836B/zh not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| MXPA02001199A (es) | 2002-07-30 |
| BR0012932A (pt) | 2003-04-29 |
| AU6523800A (en) | 2001-03-05 |
| CN1178438C (zh) | 2004-12-01 |
| JP2003506968A (ja) | 2003-02-18 |
| IL147717A0 (en) | 2002-08-14 |
| EP1198934A1 (en) | 2002-04-24 |
| AU773419B2 (en) | 2004-05-27 |
| NO20020517D0 (no) | 2002-02-01 |
| KR20020037342A (ko) | 2002-05-18 |
| NO20020517L (no) | 2002-02-01 |
| HK1047836A1 (en) | 2003-03-07 |
| HK1047836B (zh) | 2005-07-22 |
| RU2002105522A (ru) | 2003-09-10 |
| UA70375C2 (uk) | 2004-10-15 |
| CN1375146A (zh) | 2002-10-16 |
| WO2001011840A1 (en) | 2001-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |