FI118702B - Vocoder med variabel hastighet - Google Patents
Vocoder med variabel hastighet Download PDFInfo
- Publication number
- FI118702B FI118702B FI20061121A FI20061121A FI118702B FI 118702 B FI118702 B FI 118702B FI 20061121 A FI20061121 A FI 20061121A FI 20061121 A FI20061121 A FI 20061121A FI 118702 B FI118702 B FI 118702B
- Authority
- FI
- Finland
- Prior art keywords
- bits
- frame
- speech
- rate
- level
- Prior art date
Links
- 230000004044 response Effects 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims description 72
- 230000000694 effects Effects 0.000 claims description 68
- 230000015572 biosynthetic process Effects 0.000 claims description 55
- 230000005540 biological transmission Effects 0.000 claims description 51
- 239000013598 vector Substances 0.000 claims description 48
- 230000006870 function Effects 0.000 claims description 24
- 230000005284 excitation Effects 0.000 claims description 20
- 230000003595 spectral effect Effects 0.000 claims description 11
- 125000004122 cyclic group Chemical group 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims 1
- 238000005192 partition Methods 0.000 claims 1
- 230000015654 memory Effects 0.000 abstract description 54
- 230000000873 masking effect Effects 0.000 abstract description 6
- 238000003786 synthesis reaction Methods 0.000 description 58
- 239000000872 buffer Substances 0.000 description 51
- 238000004458 analytical method Methods 0.000 description 33
- 238000004364 calculation method Methods 0.000 description 30
- 238000010586 diagram Methods 0.000 description 27
- 230000003044 adaptive effect Effects 0.000 description 24
- 238000013139 quantization Methods 0.000 description 23
- 238000006243 chemical reaction Methods 0.000 description 14
- 238000013144 data compression Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 12
- 230000009467 reduction Effects 0.000 description 9
- 230000007423 decrease Effects 0.000 description 8
- 238000005070 sampling Methods 0.000 description 8
- 208000024891 symptom Diseases 0.000 description 8
- 238000001914 filtration Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 230000001419 dependent effect Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000012217 deletion Methods 0.000 description 3
- 230000037430 deletion Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 2
- 230000009089 cytolysis Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000001308 synthesis method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000001755 vocal effect Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 101100011369 Caenorhabditis elegans egl-26 gene Proteins 0.000 description 1
- 101000822695 Clostridium perfringens (strain 13 / Type A) Small, acid-soluble spore protein C1 Proteins 0.000 description 1
- 101000655262 Clostridium perfringens (strain 13 / Type A) Small, acid-soluble spore protein C2 Proteins 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- 101000693970 Homo sapiens Scavenger receptor class A member 3 Proteins 0.000 description 1
- 101000655256 Paraclostridium bifermentans Small, acid-soluble spore protein alpha Proteins 0.000 description 1
- 101000655264 Paraclostridium bifermentans Small, acid-soluble spore protein beta Proteins 0.000 description 1
- 102100027192 Scavenger receptor class A member 3 Human genes 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 238000005311 autocorrelation function Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229960001484 edetic acid Drugs 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000012536 storage buffer Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009897 systematic 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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0057—Block codes
-
- 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
-
- 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
- G10L19/012—Comfort noise or silence coding
-
- 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
- G10L19/04—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 using predictive techniques
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
-
- 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
- G10L19/04—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 using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
-
- 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
- G10L19/04—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 using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1682—Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers
- H04J3/1688—Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers the demands of the users being taken into account after redundancy removal, e.g. by predictive coding, by variable sampling
-
- 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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0014—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the source coding
-
- 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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
-
- 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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
-
- 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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0046—Code rate detection or code type detection
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
- G10L2025/783—Detection of presence or absence of voice signals based on threshold decision
- G10L2025/786—Adaptive threshold
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Amplifiers (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Developing Agents For Electrophotography (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Dc Digital Transmission (AREA)
- Luminescent Compositions (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Noise Elimination (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Facsimile Image Signal Circuits (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Table Devices Or Equipment (AREA)
- Inorganic Insulating Materials (AREA)
- Endoscopes (AREA)
- Magnetic Record Carriers (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Claims (37)
1. Förfarande för komprimering av talsignaler genom variabel hastighetskodning av ramar av digitaliserade 5 talprov, omfattande stegen: nivan av talaktivitet för en ram av digitaliserade talprov bestäms; en kodningshastighet väljs ur en uppsättning hastigheter baserat pä nämnda bestämda niva av 10 talaktivitet för nämnda ram; nämnda ram kodas enligt ett kodningsformat av en uppsättning kodningsformat för nämnda valda hastighet, väri varje hastighet har ett motsvarande olikt kodningsformat och väri varje kodningsformat sörjer 15 för en olik mängfald av parametersignaler, vilka representerar nämnda digitaliserade talprov (s(n)) enligt en talmodell; och för nämnda ram genereras ett datapaket av nämnda parametersignaler, kännetecknat därav, att: 20 ett gränshastighetskommando ästadkommes, vilket • · , , indikerar en pä förhand vald kodningshastighet för • · « *· " nämnda ram; och • · nämnda valda kodningshastighet modifieras, för att ge • · . nämnda pä förhand valda kodningshastighet för kodning t · *♦··' 25 av nämnda ram vid nämnda pä förhand valda • · f...* kodningshastighet.
·· * · • ·· « ,···, 2. Förfarande enligt patentkravet 1, väri nämnda steg • · "* för bestämning av nämnda niva av ramtalaktivitet ··· 30 omfattar stegen: talaktiviteten mäts i nämnda ram av digitaliserade *:*·: talprov; * · 114 118702 nämnda uppmätta talaktivitet jämförs med ätminstone en talaktivitetströskelnivä av en pä förhand bestämd uppsättning talaktivitetströskelniväer; och ätminstone en av nämnda talaktivitetströskelniväer 5 regleras anpassningsbart i förhällande tili de digitaliserade talproven tili en aktivitetsnivä för en tidigare ram av digitaliserade talprov, som svar pä nämnda jämförelse. 10
3. Förfarande enligt patentkravet 1 eller 2, väri nämnda pä förhand valda hastighet är mindre än en pä förhand bestämd maximihastighet, vilket nämnda förfarande vidare omfattar stegen: ett ytterligare datapaket ges; och 15 nämnda datapaket kombineras med nämnda ytterligare datapaket inom en överföringsram för överföring*
4. Förfarande enligt nägot av föregäende patentkrav, väri nämnda steg, där man ger nämnda datapaket av . 20 nämnda parametersignaler, omfattar: • * ; ett varierbart antal bitar genereras för att * ·· representera lineär prediktiv koefficient (LPC) * * . vektorsignaler för nämnda ram av digitaliserade talprov, väri nämnda variabla antal bitar som « · · >ϊ·* 25 representerar nämnda LPC-vektorsignaler, fungerar som ··· svar pä nämnda uppmätta talaktivitetsnivä; „ ett varierbart antal bitar genereras för att • · • I* representera tonhöjdsvektorsignaler för nämnda ram av *...* digitaliserade talprov, väri nämnda variabla antal ·"*. 30 bitar, som representerar nämnda ··· tonhöjdsvektorsignaler, fungerar som svar pä nämnda • ^ uppmätta talaktivitetsnivä; och * · «•••S • · 115 118702 ett varierbart antal bitar genereras för att representera kodboksexciteringsvektorsignaler för nämnda ram av digitaliserade talprov, väri nämnda variabla antal bitar som representerar nämnda 5 kodboksexciteringsvektorsignaler fungerar som svar pä nämnda uppmätta talaktivitetsnivä.
5. Förfarande enligt nägot av föregäende patentkrav, väri nämnda steg, där nämnda ram kodas, omfattar: 10 för nämnda ram genereras ett variabelt antal lineära prediktiva koefficienter, väri nämnda variabla antal av nämnda lineära prediktiva koefficienter fungerar som svar pä nämnda kodningshastighet; för nämnda ram genereras ett variabelt antal av 15 tonhöjdskoefficienter, väri nämnda variabla antal av nämnda tonhöjdskoefficienter fungerar som svar pä nämnda utvalda kodningshastighet; och för nämnda ram genereras ett variabelt antal kodboks-exciteringsvärden, väri nämnda variabla antal av 20 nämnda kodningsexciteringsvärden fungerar som svar pä ·:··· nämnda utvalda kodningshastighet. • · • « • ·1 2 • · • I···
* 6. Förfarande enligt nägot av föregäende patentkrav, **** väri nämnda steg, där en nivä av talaktivitet bestäms, •„;.S 25 omfattar summering av kvadraterna av värdena av nämnda ··· digitaliserade talprov· ·
7. Förfarande enligt patentkravet 6, vilket ·;·’ ytterligare omfattar steget, där felskyddsbitar 2 ;3 4 5; 30 genereras för nämnda datapaket. 3 4 · 5
8. Förfarande enligt patentkravet 7, väri nämnda steg, **··: där felskyddsbitar genereras för nämnda datapaket, 116 118702 varvid antalet av nämnda skyddsbitar fungerar som svar pä nämnda ram för talaktivitetsnivä.
9. Förfarande enligt patentkravet 2, väri nämnda steg, 5 där talaktivitetströskelniväer anpassningsbart regleras, omfattar stegen: nämnda uppmätta talaktivitet jämförs med nämnda ätminstone ena av talaktivitetströsklar och nämnda ätminstone ena av talaktivitetströsklar ökas 10 inkrementalt mot nivan av nämnda ramtalaktivitet, da nämnda ramtalaktivitet överstiger nämnda ätminstone ena av nämnda talaktivitetströsklar; och nämnda uppmätta talaktivitet jämförs med nämnda ätminstone ena av talaktivitetströsklar och nämnda 15 ätminstone ena av talaktivitetströsklar minskas tili nivän för nämnda ramtalaktivitet, da nämnda ramtalaktivitet är mindre än nämnda ätminstone ena av talaktivitetströsklar. 20
10. Förfarande enligt patentkravet 9, väri nämnda steg, där en kodningshastighet väljs, fungerar som : 1.l svar pä en yttre hastighetssignal. « • ·
11. Förfarande enligt patentkravet 7, väri nämnda • · · *···1 25 steg, där felskydd genereras för nämnda datapaket, • · φ ytterligare omfattar bestämning av värdena för nämnda felskyddsbitar i enlighet med en cyklisk blockkod. »1 * · • ·· ··· • · • "1
12. Förfarande enligt nägot av föregäende patentkrav, IM 30 vilket ytterligare omfattar steget, där nämnda ·:··: digitaliserade talprov (s (n)) förmultipliceras genom en förutbestämd fönsterbildningsfunktion. • · · 118702
13. Förfarande enligt nägot av föregäende patentkrav, vilket ytterligare omfattar steget, där nämnda LPC-koefficienter konverteras tili linjespektralpars (LSP)värden. 5
14. Förfarande enligt nägot av föregäende patentkrav, väri de digitaliserade provens nämnda inmatningsram omfattar digitaliserade värden för cirka tjugo millisekunder tai. 10
15. Förfarande enligt nägot av föregäende patentkrav, väri de digitaliserade provens nämnda inmatningsram omfattar cirka 160 digitaliserade prov.
16. Förfarande enligt nägot av föregäende patentkrav, 15 väri nämnda utmatningsdatapaket omfattar: etthundrasjuttien bitar omfattande fyrtio bitar för LPC data, fyrtio bitar för tonhöjdsdata, ättio bitar för exciteringsdata och elva bitar för felskydd, dä nämnda utmatningsdatahastighet är fullhastighet; . 20 ättio bitar omfattar tjugo bitar för LPC-information, ] | tjugo bitar för tonhöjdsinformation och fyrtio bitar • · · *· '· for exciteringsvektordata, dä nämnda *·**· utmatningsdatahastighet är halvhastighet; fyrtio bitar omfattar tio bitar för LPC-information, • · · *·Σ·1 25 tio bitar för tonhöjdsinformation och tjugo bitar för • · · exciteringsvektorinformation, dä nämnda utmatningsdatahastighet är en kvartshastighet; och m m ί ** sexton bitar omfattar tio bitar för LPC-information ··· ·...· och sex bitar för exciteringsvektorinformation, dä .***. 30 nämnda utmatningsdatahastighet är en • · ättondedelshastighet. • • · · 118 118702
17 Apparat för komprimering av en akustisk signal till variabel hastighetsdata omfattande: medel (52) för att bestämma en niva av talaktivitet för en inmatningsram (10)av digitaliserade prov av 5 nämnda akustiska signal; medel (90, 294, 296) för att väljä en utmatningsdatahastighet frän en pä förhand bestämd uppsättning av hastigheter baserat pä nämnda bestämda niva av talaktivitet inom nämnda ram; 10 medel (58, 104, 106, 108) för att koda nämnda ram enligt ett kodningsformat av en uppsättning av kodningsformat för nämnda utvalda hastighet, för att ge ett flertal parametersignaler, väri varje hastighet har ett motsvarande olikt kodningsformat,' varvid varje 15 kodningsformat ger en olik mängfald av parametersignaler , som representerar nämnda digitaliserade talprov (s(n)) i enlighet med en talmodell; och medel (114) för att ge nämnda ram ett motsvarande 20 datapaket (p(n)) med en datahastighet, som motsvarar . nämnda utvalda hastighet, • * .·, ; kannetecknad av; • *· t · ·;··· medel för att ge ett hastighetsgränskommando, som indikerar en pä förhand vald kodningshastighet för , 25 nämnda ram; och t · ♦ • · · ;***: medel för att modifiers nämnda utvalda ·*· kodningshastighet, för att ge nämnda pä förhand valda ;·. kodningshastighet för kodning av nämnda ram med nämnda • ·· \..t pä förhand bestämda kodningshastighet. • · Φ · · 30 • · • · ***
18. Apparat enligt patentkravet 17, väri nämnda · • t datapaket omfattar: • · ·*!«· « * 119 118702 ett varierbart antal bitar för att representera LPC vektorsignaler av nämnda ram (10) av digitaliserade talprov (s(n)), väri nämnda varierbara antal bitar för att representera nämnda LPC vektorsignaler, fungerar 5 son svar pä nämnda niva av talaktivitet; ett varierbart antal bitar för att representera tonhöjdsvektorsignaler av nämnda ram (10) av digitaliserade talprov (s(n)), väri nämnda varierbara antal bitar för att representera nämnda 10 tonhöjdsvektorsignaler, fungerar som svar pä nämnda niva av talaktivitet; ett varierbart antal bitar för att representera kodboksexciteringsvektorsignaler av nämnda ram (10) av digitaliserade talprov (s(n)), väri nämnda varierbara 15 antal bitar för att representera nämnda kodboksexciteringsvektorsignaler, fungerar son svar pä nämnda nivä av talaktivitet.
19. Apparat enligt patentkravet 17 eller 18, väri 20 nämnda medel för att bestämma nämnda nivä av , talaktivitet, omfattar: · ,·. ; medel (202) för att bestämma energinivän för nämnda i *· ] ! inmatningsram; • · medel (204) för att jämföra nämnda inmatningsramenergi . .·. 25 med nämnda ätminstone ena talaktivitetströskel; och • · · «»· ;***j medel (312) för att ge en indikation, dä nämnda ··· inmatningsramaktivitet överstiger varje motsvarande av ··. nämnda ätminstone ena talaktivitetströsklar. • t* ·· * · • · *·· ♦ .···. 30
20. Apparat enligt patentkravet 20, vilken ytterligare .["· omfattar medel för att anpassningsbart reglera nämnda • * • ätminstone ena av nämnda ätminstone ena ***** talaktivitetströsklar. t * 120 1 1 8702
21. Apparat enligt patentkravet 19, vari nämnda medel för bestämning av nämnda energi av nämnda inmatningsram omfattar: 5 kvadreringsmedel för att kvadrera nämnda digitaliserade ljudprov av en ram; och summeringsmedel för att summera nämnda kvadrater av digitaliserade ljudprov av en ram.
22. Apparat enligt nägot av patentkraven 17, 18 eller 19, väri nämnda medel för att bestämma en nivä av tal-aktivitet omfattar: medel (50), för att beräkna en uppsättning lineära prediktiva koefficienter för nämnda inmatningsram av 15 digitaliserade prov av nämnda akustiska signaler; och medel, för att bestämma nämnda nivä av talaktivitet i enlighet med ätminstone en av nämnda lineära prediktiva koefficienter. *;**· 20
23. Apparat enligt nägot av patentkraven 17 - 22, :*·,· vilken ytterligare omfattar medel (236, 238) för att • · ge felskyddsbitar för nämnda datapaket som svar pä nämnda utvalda utmatningsdatahastighet. • · • · · • · · M· • · ·
24. Apparat enligt patentkravet 24, vari nämnda medel (236, 238)för att ge felskyddsbitar ger värdena av nämnda felskyddsbitar i enlighet med en cylkisk ;**. blockkod. ««· ·*« • · • · ··· ·;**: 30
25. Apparat enligt nägot av patentkraven 17-24, ’. vilken ytterligare omfattar medel (208) för att • · 121 1 1 8702 konvertera nämnda LPC koefficienter till linj espektralpar(LSP)värden.
26. Apparat enligt nägot av patentkraven 17 - 25, vari 5 nämnda uppsättning hastigheter omfattar full hastighet, halvhastighet, kvarthastighet och ättondedelshastighet.
27. Apparat enligt nägot av patentkraven 17 - 26, vari 10 nämnda uppsättning av hastigheter omfattar 8 kbps, 4 kbps, 2 kbps och 1 kbps.
28. Apparat enligt patentkravet 22, vari nämnda medel för att bestämma en niva av talaktivitet bestämmer 15 nämnda energi genom att beräkna en uppsättning av lineära prediktiva koefficienter för nämnda inmatningsram och bestämmer nämnda niva av talaktivitet i enlighet med ätminstone en av nämnda lineära prediktiva koefficienter. 20
• · : 29. Apparat enligt nägot av patentkraven 17 - 28, vari nämnda inmatningsram av digitaliserade talprov • · . omfattar digitaliserat tai för cirka tjugo millisekunder. • · · • I i • · · 25 • · • · ·
30. Apparat enligt nägot av patentkraven 17 - 29, vari de digitaliserade provens nämnda inmatningsram ]···, omfattar 160 digitaliserade prov. φ · ·»· »·* · • · * Φ ·
31. Apparat enligt patentkravet 37, vari nämnda cyk- • # liska blockkod fungerar enligt generatorpolymonet * * l+x3+x5+x6+x8+x9+x10. * t 122 1 1 8702
32. Apparat enligt nägot av patentkraven 17 - 31, vilken ytterligare omfattar medel (52, 200) för förmultiplicering av nämnda digitaliserade prov genom 5 en pä förhand bestämd fönsterbildningsfunktion.
33. Apparat enligt patentkravet 32, väri nämnda pä förhand bestämda fönsterbildningsfunktion är ett Hamming-fönster. 10
34. Apparat enligt nagot av patentkraven 17 - 33, väri nämnda utgängsdatapaket (p(n)) omfattar: ett variabelt antal bitar för att representera LPC-vektorsignaler av nämnda ram av digitaliserade talprov 15 (s(n)), väri nämnda variabla antal bitar för att representera nämnda LPC-vektorsignaler fungerar som svar pä nämnda nivä av talaktivitet; ett variabelt antal bitar för att representera tonhöjdsvektorsignaler av nämnda ram av digitaliserade . 20 talprov (s(n)), väri nämnda variabla antal bitar för \ | att representera nämnda tonhöjdsvektorsignaler • · · * fungerar som svar pä nämnda nivä av talaktivitet; och • · . ett variabelt antal bitar för att representera kod- boksexciteringsvektorsignaler av nämnda ram av * · · *·ϊ·1 25 digitaliserade talprov (s (n)), väri nämnda variabla ··· ·...· antal bitar för att representera nämnda kodboksexiteringsvektorsignaler fungerar som svar pä Γ1,. nämnda nivä av talaktivitet; • •f • · t 1 *·· *·1
35. Apparat enligt patentkravet 43, väri nämnda ’"1! utmatningsdatapaket ytterligare omfattar ett varierbart antal bitar för felskydd, väri nämnda • · · 118702 varierbara antal bitar för felskydd fungerar som svar pä nämnda niva av talaktivitet.
36. Apparat enligt nägot av patentkraven 17 - 35, vari 5 nämnda utmatningsdatapaket omfattar: etthundrasjUttien bitar omfattande fyrtio bitar för LPC-data, fyrtio bitar för tonhöjdsdata, ättio bitar för exciteringsvektordata och elva bitar för felskydd, da nämnda utmatningsdatahastighet är fullhastighet; 10 ättio bitar omfattande tjugo bitar LPC-information, tjugo bitar för tonhöjdsinformation och fyrtio bitar för exciteringsvektordata, dä nämnda utmatningsdatahastighet är halvhastighet; fyrtio bitar omfattande tio bitar för LPC-information, 15 tio bitar för tonhöjdsinformation och tjugo bitar för exciteringsvektordata, dä nämnda utmatningsdatahastighet är kvarthastighet; och sexton bitar omfattande tio bitar för LPC-information och sex bitar exciteringsvektorinformation, dä nämnda 20 utmatningsdatahastighet är ättondedelshastighet. • « • · 9 9 9 • ·· » ·
37. Apparat enligt nägot av patentkraven 17 - 36, vari 9 9 nämnda medel (90, 294, 296) för vai av * · . kodningshastighet fungerar som svar pä en yttre • · t *"·* 25 hastighetssignal. « · • · ··· ·* • · • 99 «·· • · • 9 999 9 999 9 9 • 9 999 9 9 9 9 9 9 9 9 9 9
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US71366191A | 1991-06-11 | 1991-06-11 | |
US71366191 | 1991-06-11 | ||
PCT/US1992/004605 WO1992022891A1 (en) | 1991-06-11 | 1992-06-03 | Variable rate vocoder |
US9204605 | 1992-06-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
FI20061121A FI20061121A (sv) | 2006-12-15 |
FI118702B true FI118702B (sv) | 2008-02-15 |
Family
ID=24866989
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI935597A FI120425B (sv) | 1991-06-11 | 1993-12-13 | Vocoder med variabel hastighet |
FI20011509A FI20011509A (sv) | 1991-06-11 | 2001-07-10 | Vocoder med variabel hastighet |
FI20011508A FI20011508A (sv) | 1991-06-11 | 2001-07-10 | Vocoder med variabel hastighet |
FI20061121A FI118702B (sv) | 1991-06-11 | 2006-12-15 | Vocoder med variabel hastighet |
FI20061122A FI20061122L (sv) | 1991-06-11 | 2006-12-15 | Vocoder med variabel hastighet |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI935597A FI120425B (sv) | 1991-06-11 | 1993-12-13 | Vocoder med variabel hastighet |
FI20011509A FI20011509A (sv) | 1991-06-11 | 2001-07-10 | Vocoder med variabel hastighet |
FI20011508A FI20011508A (sv) | 1991-06-11 | 2001-07-10 | Vocoder med variabel hastighet |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20061122A FI20061122L (sv) | 1991-06-11 | 2006-12-15 | Vocoder med variabel hastighet |
Country Status (21)
Country | Link |
---|---|
US (3) | US5414796A (sv) |
EP (8) | EP0588932B1 (sv) |
JP (7) | JP3432822B2 (sv) |
CN (8) | CN1286086C (sv) |
AT (4) | ATE272883T1 (sv) |
AU (3) | AU671952B2 (sv) |
BR (1) | BR9206143A (sv) |
CA (6) | CA2568984C (sv) |
DE (4) | DE69233794D1 (sv) |
DK (2) | DK0588932T3 (sv) |
ES (4) | ES2240252T3 (sv) |
FI (5) | FI120425B (sv) |
HK (3) | HK1014796A1 (sv) |
HU (1) | HU215861B (sv) |
IL (4) | IL113986A (sv) |
MX (1) | MX9202808A (sv) |
NO (1) | NO319559B1 (sv) |
RU (1) | RU2107951C1 (sv) |
SG (1) | SG70558A1 (sv) |
WO (1) | WO1992022891A1 (sv) |
ZA (1) | ZA924082B (sv) |
Families Citing this family (500)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7606575B2 (en) | 1988-08-04 | 2009-10-20 | Broadcom Corporation | Remote radio data communication system with data rate switching |
US20010050943A1 (en) * | 1989-08-03 | 2001-12-13 | Mahany Ronald L. | Radio frequency communication network having adaptive communication parameters |
US6693951B1 (en) | 1990-06-25 | 2004-02-17 | Qualcomm Incorporated | System and method for generating signal waveforms in a CDMA cellular telephone system |
CA2568984C (en) * | 1991-06-11 | 2007-07-10 | Qualcomm Incorporated | Variable rate vocoder |
US5355450A (en) * | 1992-04-10 | 1994-10-11 | Avid Technology, Inc. | Media composer with adjustable source material compression |
AU3274593A (en) * | 1991-12-13 | 1993-07-19 | Avid Technology, Inc. | Quantization table adjustment |
SE469764B (sv) * | 1992-01-27 | 1993-09-06 | Ericsson Telefon Ab L M | Saett att koda en samplad talsignalvektor |
TW224191B (sv) * | 1992-01-28 | 1994-05-21 | Qualcomm Inc | |
CA2105269C (en) * | 1992-10-09 | 1998-08-25 | Yair Shoham | Time-frequency interpolation with application to low rate speech coding |
FI95086C (sv) * | 1992-11-26 | 1995-12-11 | Nokia Mobile Phones Ltd | Förfarande för effektiv kodning av en talsignal |
US5617423A (en) | 1993-01-08 | 1997-04-01 | Multi-Tech Systems, Inc. | Voice over data modem with selectable voice compression |
US5535204A (en) | 1993-01-08 | 1996-07-09 | Multi-Tech Systems, Inc. | Ringdown and ringback signalling for a computer-based multifunction personal communications system |
US5864560A (en) | 1993-01-08 | 1999-01-26 | Multi-Tech Systems, Inc. | Method and apparatus for mode switching in a voice over data computer-based personal communications system |
US6009082A (en) | 1993-01-08 | 1999-12-28 | Multi-Tech Systems, Inc. | Computer-based multifunction personal communication system with caller ID |
US5812534A (en) | 1993-01-08 | 1998-09-22 | Multi-Tech Systems, Inc. | Voice over data conferencing for a computer-based personal communications system |
US5754589A (en) | 1993-01-08 | 1998-05-19 | Multi-Tech Systems, Inc. | Noncompressed voice and data communication over modem for a computer-based multifunction personal communications system |
US5546395A (en) | 1993-01-08 | 1996-08-13 | Multi-Tech Systems, Inc. | Dynamic selection of compression rate for a voice compression algorithm in a voice over data modem |
US5452289A (en) | 1993-01-08 | 1995-09-19 | Multi-Tech Systems, Inc. | Computer-based multifunction personal communications system |
US5453986A (en) | 1993-01-08 | 1995-09-26 | Multi-Tech Systems, Inc. | Dual port interface for a computer-based multifunction personal communication system |
US5657423A (en) * | 1993-02-22 | 1997-08-12 | Texas Instruments Incorporated | Hardware filter circuit and address circuitry for MPEG encoded data |
WO1994024823A1 (en) * | 1993-04-16 | 1994-10-27 | Data Translation, Inc. | Adaptive video compression using variable quantization |
CA2160562A1 (en) * | 1993-04-16 | 1994-10-27 | James M. Hardiman | Adaptive video decompression |
FI96248C (sv) * | 1993-05-06 | 1996-05-27 | Nokia Mobile Phones Ltd | Förfarande för åstadkommande av ett syntesfilter för långtidsintervall samt syntesfilter för talkodrar |
US5659659A (en) * | 1993-07-26 | 1997-08-19 | Alaris, Inc. | Speech compressor using trellis encoding and linear prediction |
ZA946674B (en) * | 1993-09-08 | 1995-05-02 | Qualcomm Inc | Method and apparatus for determining the transmission data rate in a multi-user communication system |
US5649299A (en) * | 1993-10-27 | 1997-07-15 | Motorola, Inc. | Apparatus and method for adapting a digital radiotelephone system to increased subscriber traffic |
US6088590A (en) | 1993-11-01 | 2000-07-11 | Omnipoint Corporation | Method and system for mobile controlled handoff and link maintenance in spread spectrum communication |
US6094575A (en) | 1993-11-01 | 2000-07-25 | Omnipoint Corporation | Communication system and method |
IL111469A0 (en) | 1993-11-01 | 1994-12-29 | Omnipoint Corp | Despreading/demodulating direct sequence spread spectrum signals |
US6005856A (en) | 1993-11-01 | 1999-12-21 | Omnipoint Corporation | Communication protocol for spread spectrum wireless communication system |
JP3182032B2 (ja) * | 1993-12-10 | 2001-07-03 | 株式会社日立国際電気 | 音声符号化通信方式及びその装置 |
US5621852A (en) * | 1993-12-14 | 1997-04-15 | Interdigital Technology Corporation | Efficient codebook structure for code excited linear prediction coding |
US5784532A (en) * | 1994-02-16 | 1998-07-21 | Qualcomm Incorporated | Application specific integrated circuit (ASIC) for performing rapid speech compression in a mobile telephone system |
CA2158270C (en) * | 1994-02-17 | 1999-09-21 | Michael D. Kotzin | Method and apparatus for reducing self interference in a communication system |
CA2142391C (en) * | 1994-03-14 | 2001-05-29 | Juin-Hwey Chen | Computational complexity reduction during frame erasure or packet loss |
US5615298A (en) * | 1994-03-14 | 1997-03-25 | Lucent Technologies Inc. | Excitation signal synthesis during frame erasure or packet loss |
US5574825A (en) * | 1994-03-14 | 1996-11-12 | Lucent Technologies Inc. | Linear prediction coefficient generation during frame erasure or packet loss |
US5757801A (en) | 1994-04-19 | 1998-05-26 | Multi-Tech Systems, Inc. | Advanced priority statistical multiplexer |
US5682386A (en) | 1994-04-19 | 1997-10-28 | Multi-Tech Systems, Inc. | Data/voice/fax compression multiplexer |
FI98162C (sv) * | 1994-05-30 | 1997-04-25 | Tecnomen Oy | Taligenkänningsförfarande baserat på HMM-model |
US5602961A (en) * | 1994-05-31 | 1997-02-11 | Alaris, Inc. | Method and apparatus for speech compression using multi-mode code excited linear predictive coding |
US5638412A (en) | 1994-06-15 | 1997-06-10 | Qualcomm Incorporated | Method for providing service and rate negotiation in a mobile communication system |
US5603096A (en) * | 1994-07-11 | 1997-02-11 | Qualcomm Incorporated | Reverse link, closed loop power control in a code division multiple access system |
TW271524B (sv) * | 1994-08-05 | 1996-03-01 | Qualcomm Inc | |
US5742734A (en) * | 1994-08-10 | 1998-04-21 | Qualcomm Incorporated | Encoding rate selection in a variable rate vocoder |
US5881100A (en) | 1994-09-09 | 1999-03-09 | Omnipoint Corporation | Method and apparatus for coherent correlation of a spread spectrum signal |
US5754585A (en) | 1994-09-09 | 1998-05-19 | Omnipoint Corporation | Method and apparatus for serial noncoherent correlation of a spread spectrum signal |
US5856998A (en) | 1994-09-09 | 1999-01-05 | Omnipoint Corporation | Method and apparatus for correlating a continuous phase modulated spread spectrum signal |
US5610940A (en) | 1994-09-09 | 1997-03-11 | Omnipoint Corporation | Method and apparatus for noncoherent reception and correlation of a continous phase modulated signal |
US5648982A (en) | 1994-09-09 | 1997-07-15 | Omnipoint Corporation | Spread spectrum transmitter |
US5963586A (en) | 1994-09-09 | 1999-10-05 | Omnipoint Corporation | Method and apparatus for parallel noncoherent correlation of a spread spectrum signal |
US5629956A (en) | 1994-09-09 | 1997-05-13 | Omnipoint Corporation | Method and apparatus for reception and noncoherent serial correlation of a continuous phase modulated signal |
US5680414A (en) | 1994-09-09 | 1997-10-21 | Omnipoint Corporation | Synchronization apparatus and method for spread spectrum receiver |
US5832028A (en) | 1994-09-09 | 1998-11-03 | Omnipoint Corporation | Method and apparatus for coherent serial correlation of a spread spectrum signal |
US5754584A (en) | 1994-09-09 | 1998-05-19 | Omnipoint Corporation | Non-coherent spread-spectrum continuous-phase modulation communication system |
US5757847A (en) | 1994-09-09 | 1998-05-26 | Omnipoint Corporation | Method and apparatus for decoding a phase encoded signal |
US5627856A (en) | 1994-09-09 | 1997-05-06 | Omnipoint Corporation | Method and apparatus for receiving and despreading a continuous phase-modulated spread spectrum signal using self-synchronizing correlators |
US5659574A (en) | 1994-09-09 | 1997-08-19 | Omnipoint Corporation | Multi-bit correlation of continuous phase modulated signals |
US5692007A (en) | 1994-09-09 | 1997-11-25 | Omnipoint Corporation | Method and apparatus for differential phase encoding and decoding in spread-spectrum communication systems with continuous-phase modulation |
US5953370A (en) | 1994-09-09 | 1999-09-14 | Omnipoint Corporation | Apparatus for receiving and correlating a spread spectrum signal |
US6141353A (en) * | 1994-09-15 | 2000-10-31 | Oki Telecom, Inc. | Subsequent frame variable data rate indication method for various variable data rate systems |
US5537410A (en) * | 1994-09-15 | 1996-07-16 | Oki Telecom | Subsequent frame variable data rate indication method |
JPH08102687A (ja) * | 1994-09-29 | 1996-04-16 | Yamaha Corp | 音声送受信方式 |
ATE213864T1 (de) * | 1994-10-05 | 2002-03-15 | Advanced Micro Devices Inc | Vorrichtung und verfahren zur sprachsignalanalyse zur parameterbestimmung von sprachsignalmerkmalen |
US5546448A (en) * | 1994-11-10 | 1996-08-13 | Multi-Tech Systems, Inc. | Apparatus and method for a caller ID modem interface |
US5781880A (en) * | 1994-11-21 | 1998-07-14 | Rockwell International Corporation | Pitch lag estimation using frequency-domain lowpass filtering of the linear predictive coding (LPC) residual |
JPH08179796A (ja) * | 1994-12-21 | 1996-07-12 | Sony Corp | 音声符号化方法 |
FR2729246A1 (fr) * | 1995-01-06 | 1996-07-12 | Matra Communication | Procede de codage de parole a analyse par synthese |
US5784403A (en) * | 1995-02-03 | 1998-07-21 | Omnipoint Corporation | Spread spectrum correlation using saw device |
JP3303580B2 (ja) * | 1995-02-23 | 2002-07-22 | 日本電気株式会社 | 音声符号化装置 |
ZA961025B (en) * | 1995-02-28 | 1996-07-16 | Qualcomm Inc | Method and apparatus for providing variable rate data in a communications system using non-orthogonal overflow channels |
US6292476B1 (en) | 1997-04-16 | 2001-09-18 | Qualcomm Inc. | Method and apparatus for providing variable rate data in a communications system using non-orthogonal overflow channels |
US5991725A (en) * | 1995-03-07 | 1999-11-23 | Advanced Micro Devices, Inc. | System and method for enhanced speech quality in voice storage and retrieval systems |
US5699478A (en) * | 1995-03-10 | 1997-12-16 | Lucent Technologies Inc. | Frame erasure compensation technique |
JPH08263099A (ja) * | 1995-03-23 | 1996-10-11 | Toshiba Corp | 符号化装置 |
US6137840A (en) * | 1995-03-31 | 2000-10-24 | Qualcomm Incorporated | Method and apparatus for performing fast power control in a mobile communication system |
TW347616B (en) | 1995-03-31 | 1998-12-11 | Qualcomm Inc | Method and apparatus for performing fast power control in a mobile communication system a method and apparatus for controlling transmission power in a mobile communication system is disclosed. |
US6977967B1 (en) * | 1995-03-31 | 2005-12-20 | Qualcomm Incorporated | Method and apparatus for performing fast power control in a mobile communication system |
US5548253A (en) * | 1995-04-17 | 1996-08-20 | Omnipoint Corporation | Spectrally efficient quadrature amplitude modulator |
US5508708A (en) * | 1995-05-08 | 1996-04-16 | Motorola, Inc. | Method and apparatus for location finding in a CDMA system |
JP2728122B2 (ja) * | 1995-05-23 | 1998-03-18 | 日本電気株式会社 | 無音圧縮音声符号化復号化装置 |
US6356607B1 (en) | 1995-06-05 | 2002-03-12 | Omnipoint Corporation | Preamble code structure and detection method and apparatus |
US5745484A (en) | 1995-06-05 | 1998-04-28 | Omnipoint Corporation | Efficient communication system using time division multiplexing and timing adjustment control |
US5802046A (en) * | 1995-06-05 | 1998-09-01 | Omnipoint Corporation | Efficient time division duplex communication system with interleaved format and timing adjustment control |
US5959980A (en) | 1995-06-05 | 1999-09-28 | Omnipoint Corporation | Timing adjustment control for efficient time division duplex communication |
US5689502A (en) * | 1995-06-05 | 1997-11-18 | Omnipoint Corporation | Efficient frequency division duplex communication system with interleaved format and timing adjustment control |
US6526038B1 (en) * | 1995-06-07 | 2003-02-25 | Telcordia Technologies, Inc. | Periodic wireless broadcast |
GB9512284D0 (en) * | 1995-06-16 | 1995-08-16 | Nokia Mobile Phones Ltd | Speech Synthesiser |
US7929498B2 (en) | 1995-06-30 | 2011-04-19 | Interdigital Technology Corporation | Adaptive forward power control and adaptive reverse power control for spread-spectrum communications |
US6885652B1 (en) | 1995-06-30 | 2005-04-26 | Interdigital Technology Corporation | Code division multiple access (CDMA) communication system |
ZA965340B (en) | 1995-06-30 | 1997-01-27 | Interdigital Tech Corp | Code division multiple access (cdma) communication system |
US7020111B2 (en) | 1996-06-27 | 2006-03-28 | Interdigital Technology Corporation | System for using rapid acquisition spreading codes for spread-spectrum communications |
FI100157B (sv) * | 1995-07-12 | 1997-09-30 | Nokia Mobile Phones Ltd | Kretskopplade bärartjänster med variabla bithastigheter i TDMA-baserat cellulära system |
US6041046A (en) * | 1995-07-14 | 2000-03-21 | Omnipoint Corporation | Cyclic time hopping in time division multiple access communication system |
US5754733A (en) * | 1995-08-01 | 1998-05-19 | Qualcomm Incorporated | Method and apparatus for generating and encoding line spectral square roots |
FR2737948B1 (fr) * | 1995-08-16 | 1997-10-17 | Alcatel Mobile Comm France | Dispositif de commande de volume sonore pour recepteur de signaux de parole codes par blocs |
JP3522012B2 (ja) * | 1995-08-23 | 2004-04-26 | 沖電気工業株式会社 | コード励振線形予測符号化装置 |
JP3079220B2 (ja) * | 1995-08-31 | 2000-08-21 | エヌ・ティ・ティ移動通信網株式会社 | 無音圧縮制御機能を備えたatm伝送方法、およびその方法を用いたシステム、送信装置および受信装置 |
US5950164A (en) * | 1995-09-29 | 1999-09-07 | Olympus Optical Co., Ltd. | Voice recording apparatus capable of displaying remaining recording capacity of memory according to encoding bit rates |
JP3680380B2 (ja) * | 1995-10-26 | 2005-08-10 | ソニー株式会社 | 音声符号化方法及び装置 |
JP4005154B2 (ja) * | 1995-10-26 | 2007-11-07 | ソニー株式会社 | 音声復号化方法及び装置 |
JPH09152896A (ja) * | 1995-11-30 | 1997-06-10 | Oki Electric Ind Co Ltd | 声道予測係数符号化・復号化回路、声道予測係数符号化回路、声道予測係数復号化回路、音声符号化装置及び音声復号化装置 |
US5956674A (en) * | 1995-12-01 | 1999-09-21 | Digital Theater Systems, Inc. | Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels |
US5822721A (en) * | 1995-12-22 | 1998-10-13 | Iterated Systems, Inc. | Method and apparatus for fractal-excited linear predictive coding of digital signals |
US5737716A (en) * | 1995-12-26 | 1998-04-07 | Motorola | Method and apparatus for encoding speech using neural network technology for speech classification |
US5839052A (en) * | 1996-02-08 | 1998-11-17 | Qualcom Incorporated | Method and apparatus for integration of a wireless communication system with a cable television system |
US5867763A (en) * | 1996-02-08 | 1999-02-02 | Qualcomm Incorporated | Method and apparatus for integration of a wireless communication system with a cable T.V. system |
JPH09230896A (ja) * | 1996-02-28 | 1997-09-05 | Sony Corp | 音声合成装置 |
US5754537A (en) * | 1996-03-08 | 1998-05-19 | Telefonaktiebolaget L M Ericsson (Publ) | Method and system for transmitting background noise data |
WO1997036397A1 (en) * | 1996-03-27 | 1997-10-02 | Motorola Inc. | Method and apparatus for providing a multi-party speech connection for use in a wireless communication system |
SE506341C2 (sv) * | 1996-04-10 | 1997-12-08 | Ericsson Telefon Ab L M | Metod och anordning för rekonstruktion av en mottagen talsignal |
GB2312360B (en) * | 1996-04-12 | 2001-01-24 | Olympus Optical Co | Voice signal coding apparatus |
US5708757A (en) * | 1996-04-22 | 1998-01-13 | France Telecom | Method of determining parameters of a pitch synthesis filter in a speech coder, and speech coder implementing such method |
US6205190B1 (en) | 1996-04-29 | 2001-03-20 | Qualcomm Inc. | System and method for reducing interference generated by a CDMA communications device |
US5937374A (en) * | 1996-05-15 | 1999-08-10 | Advanced Micro Devices, Inc. | System and method for improved pitch estimation which performs first formant energy removal for a frame using coefficients from a prior frame |
US6047254A (en) * | 1996-05-15 | 2000-04-04 | Advanced Micro Devices, Inc. | System and method for determining a first formant analysis filter and prefiltering a speech signal for improved pitch estimation |
JP3092652B2 (ja) * | 1996-06-10 | 2000-09-25 | 日本電気株式会社 | 音声再生装置 |
US6744882B1 (en) | 1996-07-23 | 2004-06-01 | Qualcomm Inc. | Method and apparatus for automatically adjusting speaker and microphone gains within a mobile telephone |
JP3266819B2 (ja) * | 1996-07-30 | 2002-03-18 | 株式会社エイ・ティ・アール人間情報通信研究所 | 周期信号変換方法、音変換方法および信号分析方法 |
US5883927A (en) * | 1996-07-31 | 1999-03-16 | Nextwave Telecom, Inc. | Digital wireless telecommunication device for reduced interference with hearing aids |
JPH1049199A (ja) * | 1996-08-02 | 1998-02-20 | Nec Corp | 無音圧縮音声符号化復号化装置 |
US5726983A (en) * | 1996-08-09 | 1998-03-10 | Motorola, Inc. | Communication device with variable frame processing time |
US5812968A (en) * | 1996-08-28 | 1998-09-22 | Ericsson, Inc. | Vocoder apparatus using the link margin |
SE507370C2 (sv) * | 1996-09-13 | 1998-05-18 | Ericsson Telefon Ab L M | Metod och anordning för att alstra komfortbrus i linjärprediktiv talavkodare |
US5881053A (en) * | 1996-09-13 | 1999-03-09 | Qualcomm Incorporated | Method for a wireless communications channel |
US6205130B1 (en) | 1996-09-25 | 2001-03-20 | Qualcomm Incorporated | Method and apparatus for detecting bad data packets received by a mobile telephone using decoded speech parameters |
US7788092B2 (en) * | 1996-09-25 | 2010-08-31 | Qualcomm Incorporated | Method and apparatus for detecting bad data packets received by a mobile telephone using decoded speech parameters |
EP0928521A1 (en) * | 1996-09-25 | 1999-07-14 | Qualcomm Incorporated | Method and apparatus for detecting bad data packets received by a mobile telephone using decoded speech parameters |
US6014622A (en) * | 1996-09-26 | 2000-01-11 | Rockwell Semiconductor Systems, Inc. | Low bit rate speech coder using adaptive open-loop subframe pitch lag estimation and vector quantization |
US5954834A (en) * | 1996-10-09 | 1999-09-21 | Ericsson Inc. | Systems and methods for communicating desired audio information over a communications medium |
US5905794A (en) * | 1996-10-15 | 1999-05-18 | Multi-Tech Systems, Inc. | Caller identification interface using line reversal detection |
US6496543B1 (en) * | 1996-10-29 | 2002-12-17 | Qualcomm Incorporated | Method and apparatus for providing high speed data communications in a cellular environment |
US5781593A (en) * | 1996-11-14 | 1998-07-14 | Omnipoint Corporation | Methods and apparatus for vocoder synchronization in mobile communication network |
US6141373A (en) * | 1996-11-15 | 2000-10-31 | Omnipoint Corporation | Preamble code structure and detection method and apparatus |
FI964975A (sv) * | 1996-12-12 | 1998-06-13 | Nokia Mobile Phones Ltd | Förfarande och anordning för talkodning |
US6172965B1 (en) * | 1996-12-23 | 2001-01-09 | Nortel Networks Limited | Duplex transmission scheme |
JP2856185B2 (ja) * | 1997-01-21 | 1999-02-10 | 日本電気株式会社 | 音声符号化復号化システム |
CN100361485C (zh) * | 1997-01-23 | 2008-01-09 | 摩托罗拉公司 | 通信系统中非线性处理的装置和方法 |
US7751370B2 (en) * | 2001-07-13 | 2010-07-06 | Qualcomm Incorporated | Method and apparatus for forward link rate scheduling |
US6335922B1 (en) | 1997-02-11 | 2002-01-01 | Qualcomm Incorporated | Method and apparatus for forward link rate scheduling |
US6014375A (en) * | 1997-02-13 | 2000-01-11 | Ericsson Inc. | TDMA radio protocol with adaptive vocoder selection |
JP3067676B2 (ja) * | 1997-02-13 | 2000-07-17 | 日本電気株式会社 | Lspの予測符号化装置及び方法 |
US5832443A (en) * | 1997-02-25 | 1998-11-03 | Alaris, Inc. | Method and apparatus for adaptive audio compression and decompression |
US6104993A (en) * | 1997-02-26 | 2000-08-15 | Motorola, Inc. | Apparatus and method for rate determination in a communication system |
WO1998038764A1 (de) * | 1997-02-27 | 1998-09-03 | Siemens Aktiengesellschaft | Verfahren und anordnung zur rahmenfehlerdetektion zwecks fehlerverdeckung insbesondere bei gsm übertragungen |
US6167375A (en) * | 1997-03-17 | 2000-12-26 | Kabushiki Kaisha Toshiba | Method for encoding and decoding a speech signal including background noise |
US6282228B1 (en) | 1997-03-20 | 2001-08-28 | Xircom, Inc. | Spread spectrum codes for use in communication |
US6480521B1 (en) * | 1997-03-26 | 2002-11-12 | Qualcomm Incorporated | Method and apparatus for transmitting high speed data in a spread spectrum communications system |
US5907822A (en) * | 1997-04-04 | 1999-05-25 | Lincom Corporation | Loss tolerant speech decoder for telecommunications |
PL193825B1 (pl) * | 1997-04-07 | 2007-03-30 | Koninkl Philips Electronics Nv | Sposób i urządzenie do kodowania sygnału mowy |
KR100198476B1 (ko) * | 1997-04-23 | 1999-06-15 | 윤종용 | 노이즈에 견고한 스펙트럼 포락선 양자화기 및 양자화 방법 |
US6014623A (en) * | 1997-06-12 | 2000-01-11 | United Microelectronics Corp. | Method of encoding synthetic speech |
US6075792A (en) | 1997-06-16 | 2000-06-13 | Interdigital Technology Corporation | CDMA communication system which selectively allocates bandwidth upon demand |
US6003003A (en) * | 1997-06-27 | 1999-12-14 | Advanced Micro Devices, Inc. | Speech recognition system having a quantizer using a single robust codebook designed at multiple signal to noise ratios |
US6044343A (en) * | 1997-06-27 | 2000-03-28 | Advanced Micro Devices, Inc. | Adaptive speech recognition with selective input data to a speech classifier |
US6032116A (en) * | 1997-06-27 | 2000-02-29 | Advanced Micro Devices, Inc. | Distance measure in a speech recognition system for speech recognition using frequency shifting factors to compensate for input signal frequency shifts |
US6175590B1 (en) | 1997-08-08 | 2001-01-16 | Qualcomm Inc. | Method and apparatus for determining the rate of received data in a variable rate communication system |
US6097972A (en) * | 1997-08-29 | 2000-08-01 | Qualcomm Incorporated | Method and apparatus for processing power control signals in CDMA mobile telephone system |
US6058359A (en) * | 1998-03-04 | 2000-05-02 | Telefonaktiebolaget L M Ericsson | Speech coding including soft adaptability feature |
US6049537A (en) * | 1997-09-05 | 2000-04-11 | Motorola, Inc. | Method and system for controlling speech encoding in a communication system |
US5898696A (en) * | 1997-09-05 | 1999-04-27 | Motorola, Inc. | Method and system for controlling an encoding rate in a variable rate communication system |
US6920150B1 (en) * | 1997-09-30 | 2005-07-19 | Lucent Technologies Inc. | Adaptive communications transcoding and error control |
AU4661497A (en) * | 1997-09-30 | 1999-03-22 | Qualcomm Incorporated | Channel gain modification system and method for noise reduction in voice communication |
US5897613A (en) * | 1997-10-08 | 1999-04-27 | Lucent Technologies Inc. | Efficient transmission of voice silence intervals |
US6067515A (en) * | 1997-10-27 | 2000-05-23 | Advanced Micro Devices, Inc. | Split matrix quantization with split vector quantization error compensation and selective enhanced processing for robust speech recognition |
US6070136A (en) * | 1997-10-27 | 2000-05-30 | Advanced Micro Devices, Inc. | Matrix quantization with vector quantization error compensation for robust speech recognition |
US5953695A (en) * | 1997-10-29 | 1999-09-14 | Lucent Technologies Inc. | Method and apparatus for synchronizing digital speech communications |
US7184426B2 (en) | 2002-12-12 | 2007-02-27 | Qualcomm, Incorporated | Method and apparatus for burst pilot for a time division multiplex system |
US9118387B2 (en) | 1997-11-03 | 2015-08-25 | Qualcomm Incorporated | Pilot reference transmission for a wireless communication system |
US6563803B1 (en) | 1997-11-26 | 2003-05-13 | Qualcomm Incorporated | Acoustic echo canceller |
US6044339A (en) * | 1997-12-02 | 2000-03-28 | Dspc Israel Ltd. | Reduced real-time processing in stochastic celp encoding |
DE19753697B4 (de) * | 1997-12-03 | 2006-04-27 | Siemens Ag | Verfahren und Funkstation zur Datenübertragung in einem Kommunikationssystem |
US6049765A (en) * | 1997-12-22 | 2000-04-11 | Lucent Technologies Inc. | Silence compression for recorded voice messages |
US6104994A (en) * | 1998-01-13 | 2000-08-15 | Conexant Systems, Inc. | Method for speech coding under background noise conditions |
JPH11215006A (ja) * | 1998-01-29 | 1999-08-06 | Olympus Optical Co Ltd | ディジタル音声信号の送信装置及び受信装置 |
US6799159B2 (en) * | 1998-02-02 | 2004-09-28 | Motorola, Inc. | Method and apparatus employing a vocoder for speech processing |
US6381569B1 (en) * | 1998-02-04 | 2002-04-30 | Qualcomm Incorporated | Noise-compensated speech recognition templates |
US6603751B1 (en) * | 1998-02-13 | 2003-08-05 | Qualcomm Incorporated | Method and system for performing a handoff in a wireless communication system, such as a hard handoff |
US6545989B1 (en) | 1998-02-19 | 2003-04-08 | Qualcomm Incorporated | Transmit gating in a wireless communication system |
US6104991A (en) * | 1998-02-27 | 2000-08-15 | Lucent Technologies, Inc. | Speech encoding and decoding system which modifies encoding and decoding characteristics based on an audio signal |
FI113571B (sv) | 1998-03-09 | 2004-05-14 | Nokia Corp | Talkodning |
US6028541A (en) * | 1998-03-12 | 2000-02-22 | Liquid Audio Inc. | Lossless data compression with low complexity |
US6121904A (en) * | 1998-03-12 | 2000-09-19 | Liquid Audio, Inc. | Lossless data compression with low complexity |
US6043763A (en) * | 1998-03-12 | 2000-03-28 | Liquid Audio, Inc. | Lossless data compression with low complexity |
US6125348A (en) * | 1998-03-12 | 2000-09-26 | Liquid Audio Inc. | Lossless data compression with low complexity |
US6118392A (en) * | 1998-03-12 | 2000-09-12 | Liquid Audio Inc. | Lossless data compression with low complexity |
US6169906B1 (en) * | 1998-03-24 | 2001-01-02 | Motorola, Inc. | Method of transmitting messages in a dispatch call |
US20030194033A1 (en) | 1998-05-21 | 2003-10-16 | Tiedemann Edward G. | Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system |
US6577645B2 (en) | 1998-06-03 | 2003-06-10 | Siemens Aktiengesellschaft | Method and radio set for transmitting messages |
EP1084586B1 (de) * | 1998-06-03 | 2004-12-22 | Siemens Aktiengesellschaft | Verfahren und funkgerät zur übertragung von nachrichten |
US6141639A (en) * | 1998-06-05 | 2000-10-31 | Conexant Systems, Inc. | Method and apparatus for coding of signals containing speech and background noise |
JP3273599B2 (ja) * | 1998-06-19 | 2002-04-08 | 沖電気工業株式会社 | 音声符号化レート選択器と音声符号化装置 |
US6810377B1 (en) * | 1998-06-19 | 2004-10-26 | Comsat Corporation | Lost frame recovery techniques for parametric, LPC-based speech coding systems |
US6034971A (en) * | 1998-06-30 | 2000-03-07 | Motorola, Inc. | Method and apparatus for controlling communication system capacity |
US6081776A (en) * | 1998-07-13 | 2000-06-27 | Lockheed Martin Corp. | Speech coding system and method including adaptive finite impulse response filter |
DE19833318C2 (de) * | 1998-07-24 | 2001-08-02 | Bosch Gmbh Robert | Verfahren zur Übertragung von digitalen Nutzdaten |
US6163766A (en) * | 1998-08-14 | 2000-12-19 | Motorola, Inc. | Adaptive rate system and method for wireless communications |
US6173254B1 (en) * | 1998-08-18 | 2001-01-09 | Denso Corporation, Ltd. | Recorded message playback system for a variable bit rate system |
JP4308345B2 (ja) * | 1998-08-21 | 2009-08-05 | パナソニック株式会社 | マルチモード音声符号化装置及び復号化装置 |
US6260010B1 (en) * | 1998-08-24 | 2001-07-10 | Conexant Systems, Inc. | Speech encoder using gain normalization that combines open and closed loop gains |
US6449590B1 (en) | 1998-08-24 | 2002-09-10 | Conexant Systems, Inc. | Speech encoder using warping in long term preprocessing |
US6823303B1 (en) * | 1998-08-24 | 2004-11-23 | Conexant Systems, Inc. | Speech encoder using voice activity detection in coding noise |
US6330533B2 (en) * | 1998-08-24 | 2001-12-11 | Conexant Systems, Inc. | Speech encoder adaptively applying pitch preprocessing with warping of target signal |
US7072832B1 (en) * | 1998-08-24 | 2006-07-04 | Mindspeed Technologies, Inc. | System for speech encoding having an adaptive encoding arrangement |
US6240386B1 (en) * | 1998-08-24 | 2001-05-29 | Conexant Systems, Inc. | Speech codec employing noise classification for noise compensation |
US6385573B1 (en) * | 1998-08-24 | 2002-05-07 | Conexant Systems, Inc. | Adaptive tilt compensation for synthesized speech residual |
US6480822B2 (en) * | 1998-08-24 | 2002-11-12 | Conexant Systems, Inc. | Low complexity random codebook structure |
US6493665B1 (en) * | 1998-08-24 | 2002-12-10 | Conexant Systems, Inc. | Speech classification and parameter weighting used in codebook search |
US6188980B1 (en) * | 1998-08-24 | 2001-02-13 | Conexant Systems, Inc. | Synchronized encoder-decoder frame concealment using speech coding parameters including line spectral frequencies and filter coefficients |
US7117146B2 (en) * | 1998-08-24 | 2006-10-03 | Mindspeed Technologies, Inc. | System for improved use of pitch enhancement with subcodebooks |
US6798736B1 (en) | 1998-09-22 | 2004-09-28 | Qualcomm Incorporated | Method and apparatus for transmitting and receiving variable rate data |
US7272556B1 (en) * | 1998-09-23 | 2007-09-18 | Lucent Technologies Inc. | Scalable and embedded codec for speech and audio signals |
US6347297B1 (en) * | 1998-10-05 | 2002-02-12 | Legerity, Inc. | Matrix quantization with vector quantization error compensation and neural network postprocessing for robust speech recognition |
US6219642B1 (en) | 1998-10-05 | 2001-04-17 | Legerity, Inc. | Quantization using frequency and mean compensated frequency input data for robust speech recognition |
US6353808B1 (en) * | 1998-10-22 | 2002-03-05 | Sony Corporation | Apparatus and method for encoding a signal as well as apparatus and method for decoding a signal |
JP3343082B2 (ja) * | 1998-10-27 | 2002-11-11 | 松下電器産業株式会社 | Celp型音声符号化装置 |
US6463407B2 (en) | 1998-11-13 | 2002-10-08 | Qualcomm Inc. | Low bit-rate coding of unvoiced segments of speech |
US6754630B2 (en) | 1998-11-13 | 2004-06-22 | Qualcomm, Inc. | Synthesis of speech from pitch prototype waveforms by time-synchronous waveform interpolation |
US6424938B1 (en) * | 1998-11-23 | 2002-07-23 | Telefonaktiebolaget L M Ericsson | Complex signal activity detection for improved speech/noise classification of an audio signal |
US6233549B1 (en) | 1998-11-23 | 2001-05-15 | Qualcomm, Inc. | Low frequency spectral enhancement system and method |
US6256606B1 (en) * | 1998-11-30 | 2001-07-03 | Conexant Systems, Inc. | Silence description coding for multi-rate speech codecs |
US6289099B1 (en) * | 1998-11-30 | 2001-09-11 | Qualcomm Inc. | Ringer for satellite user terminals |
US6512925B1 (en) | 1998-12-03 | 2003-01-28 | Qualcomm, Incorporated | Method and apparatus for controlling transmission power while in soft handoff |
US6275485B1 (en) | 1998-12-03 | 2001-08-14 | Qualcomm Inc. | Noise characterization in a wireless communication system |
US6182030B1 (en) | 1998-12-18 | 2001-01-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Enhanced coding to improve coded communication signals |
US6691084B2 (en) * | 1998-12-21 | 2004-02-10 | Qualcomm Incorporated | Multiple mode variable rate speech coding |
US6542486B1 (en) * | 1998-12-22 | 2003-04-01 | Nortel Networks Limited | Multiple technology vocoder and an associated telecommunications network |
US6393074B1 (en) | 1998-12-31 | 2002-05-21 | Texas Instruments Incorporated | Decoding system for variable-rate convolutionally-coded data sequence |
US7406098B2 (en) * | 1999-01-13 | 2008-07-29 | Qualcomm Incorporated | Resource allocation in a communication system supporting application flows having quality of service requirements |
US6574596B2 (en) | 1999-02-08 | 2003-06-03 | Qualcomm Incorporated | Voice recognition rejection scheme |
CN1212604C (zh) * | 1999-02-08 | 2005-07-27 | 高通股份有限公司 | 基于可变速语音编码的语音合成器 |
US6226607B1 (en) * | 1999-02-08 | 2001-05-01 | Qualcomm Incorporated | Method and apparatus for eighth-rate random number generation for speech coders |
US6324509B1 (en) | 1999-02-08 | 2001-11-27 | Qualcomm Incorporated | Method and apparatus for accurate endpointing of speech in the presence of noise |
US6411926B1 (en) | 1999-02-08 | 2002-06-25 | Qualcomm Incorporated | Distributed voice recognition system |
US6330247B1 (en) | 1999-02-08 | 2001-12-11 | Qualcomm Incorporated | Communication protocol between a communication device and an external accessory |
US6587446B2 (en) * | 1999-02-11 | 2003-07-01 | Qualcomm Incorporated | Handoff in a wireless communication system |
US6260009B1 (en) | 1999-02-12 | 2001-07-10 | Qualcomm Incorporated | CELP-based to CELP-based vocoder packet translation |
US6449592B1 (en) | 1999-02-26 | 2002-09-10 | Qualcomm Incorporated | Method and apparatus for tracking the phase of a quasi-periodic signal |
US6397177B1 (en) * | 1999-03-10 | 2002-05-28 | Samsung Electronics, Co., Ltd. | Speech-encoding rate decision apparatus and method in a variable rate |
US6088347A (en) * | 1999-03-10 | 2000-07-11 | Massachusetts Institute Of Technology | Variable chip rate code-division multiple access |
US6233552B1 (en) * | 1999-03-12 | 2001-05-15 | Comsat Corporation | Adaptive post-filtering technique based on the Modified Yule-Walker filter |
US6519479B1 (en) | 1999-03-31 | 2003-02-11 | Qualcomm Inc. | Spoken user interface for speech-enabled devices |
IL145548A0 (en) * | 1999-04-12 | 2002-06-30 | Samsung Electronics Co Ltd | Apparatus and method for gated transmission in a cdma communication system |
US7058573B1 (en) * | 1999-04-20 | 2006-06-06 | Nuance Communications Inc. | Speech recognition system to selectively utilize different speech recognition techniques over multiple speech recognition passes |
US6260017B1 (en) | 1999-05-07 | 2001-07-10 | Qualcomm Inc. | Multipulse interpolative coding of transition speech frames |
US6766295B1 (en) | 1999-05-10 | 2004-07-20 | Nuance Communications | Adaptation of a speech recognition system across multiple remote sessions with a speaker |
US6661832B1 (en) * | 1999-05-11 | 2003-12-09 | Qualcomm Incorporated | System and method for providing an accurate estimation of received signal interference for use in wireless communications systems |
US6954727B1 (en) * | 1999-05-28 | 2005-10-11 | Koninklijke Philips Electronics N.V. | Reducing artifact generation in a vocoder |
US6324503B1 (en) | 1999-07-19 | 2001-11-27 | Qualcomm Incorporated | Method and apparatus for providing feedback from decoder to encoder to improve performance in a predictive speech coder under frame erasure conditions |
US6324505B1 (en) * | 1999-07-19 | 2001-11-27 | Qualcomm Incorporated | Amplitude quantization scheme for low-bit-rate speech coders |
US6330532B1 (en) | 1999-07-19 | 2001-12-11 | Qualcomm Incorporated | Method and apparatus for maintaining a target bit rate in a speech coder |
US6397175B1 (en) | 1999-07-19 | 2002-05-28 | Qualcomm Incorporated | Method and apparatus for subsampling phase spectrum information |
US6393394B1 (en) | 1999-07-19 | 2002-05-21 | Qualcomm Incorporated | Method and apparatus for interleaving line spectral information quantization methods in a speech coder |
US6496706B1 (en) | 1999-07-23 | 2002-12-17 | Qualcomm Incorporated | Method and system for transmit gating in a wireless communication system |
US6704328B1 (en) * | 1999-07-26 | 2004-03-09 | Nortel Networks, Limited | Signalling scheme and messaging structure to support the smoothing of large bit rate transmissions |
US6603752B1 (en) | 1999-07-29 | 2003-08-05 | Ahmed Saifuddin | Method and system for controlling transmission energy in a variable rate gated communication system |
US6658112B1 (en) | 1999-08-06 | 2003-12-02 | General Dynamics Decision Systems, Inc. | Voice decoder and method for detecting channel errors using spectral energy evolution |
US6633552B1 (en) * | 1999-08-06 | 2003-10-14 | Qualcomm Incorporated | Method and apparatus for determining the closed loop power control set point in a wireless packet data communication system |
US6597667B1 (en) | 1999-08-18 | 2003-07-22 | Qualcomm Incorporated | Network based muting of a cellular telephone |
US6493329B1 (en) * | 1999-08-23 | 2002-12-10 | Qualcomm Incorporated | Adaptive channel estimation in a wireless communication system |
US8064409B1 (en) | 1999-08-25 | 2011-11-22 | Qualcomm Incorporated | Method and apparatus using a multi-carrier forward link in a wireless communication system |
US6426971B1 (en) | 1999-09-13 | 2002-07-30 | Qualcomm Incorporated | System and method for accurately predicting signal to interference and noise ratio to improve communications system performance |
AU2003262451B2 (en) * | 1999-09-22 | 2006-01-19 | Macom Technology Solutions Holdings, Inc. | Multimode speech encoder |
US7054809B1 (en) * | 1999-09-22 | 2006-05-30 | Mindspeed Technologies, Inc. | Rate selection method for selectable mode vocoder |
AU766830B2 (en) * | 1999-09-22 | 2003-10-23 | Macom Technology Solutions Holdings, Inc. | Multimode speech encoder |
US6708024B1 (en) * | 1999-09-22 | 2004-03-16 | Legerity, Inc. | Method and apparatus for generating comfort noise |
US6782360B1 (en) * | 1999-09-22 | 2004-08-24 | Mindspeed Technologies, Inc. | Gain quantization for a CELP speech coder |
US6604070B1 (en) | 1999-09-22 | 2003-08-05 | Conexant Systems, Inc. | System of encoding and decoding speech signals |
US6636829B1 (en) * | 1999-09-22 | 2003-10-21 | Mindspeed Technologies, Inc. | Speech communication system and method for handling lost frames |
US6581032B1 (en) | 1999-09-22 | 2003-06-17 | Conexant Systems, Inc. | Bitstream protocol for transmission of encoded voice signals |
US6959274B1 (en) | 1999-09-22 | 2005-10-25 | Mindspeed Technologies, Inc. | Fixed rate speech compression system and method |
US6574593B1 (en) | 1999-09-22 | 2003-06-03 | Conexant Systems, Inc. | Codebook tables for encoding and decoding |
US6772126B1 (en) * | 1999-09-30 | 2004-08-03 | Motorola, Inc. | Method and apparatus for transferring low bit rate digital voice messages using incremental messages |
US6496798B1 (en) * | 1999-09-30 | 2002-12-17 | Motorola, Inc. | Method and apparatus for encoding and decoding frames of voice model parameters into a low bit rate digital voice message |
US6850506B1 (en) | 1999-10-07 | 2005-02-01 | Qualcomm Incorporated | Forward-link scheduling in a wireless communication system |
US6621804B1 (en) * | 1999-10-07 | 2003-09-16 | Qualcomm Incorporated | Method and apparatus for predicting favored supplemental channel transmission slots using transmission power measurements of a fundamental channel |
US6463274B1 (en) * | 1999-10-26 | 2002-10-08 | Denso Corporation | Multiple class of service determination for digital cellular telephones |
US7522631B1 (en) * | 1999-10-26 | 2009-04-21 | Qualcomm, Incorporated | Method and apparatus for efficient data transmission control in a wireless voice-over-data communication system |
US6438518B1 (en) | 1999-10-28 | 2002-08-20 | Qualcomm Incorporated | Method and apparatus for using coding scheme selection patterns in a predictive speech coder to reduce sensitivity to frame error conditions |
US6496794B1 (en) * | 1999-11-22 | 2002-12-17 | Motorola, Inc. | Method and apparatus for seamless multi-rate speech coding |
BR0006803A (pt) * | 1999-12-10 | 2001-12-11 | Lucent Technologies Inc | Sistema e método para reduzir retardo de fala emelhorar a qualidade de fala utilizando meiosblocos |
US6772112B1 (en) | 1999-12-10 | 2004-08-03 | Lucent Technologies Inc. | System and method to reduce speech delay and improve voice quality using half speech blocks |
US7574351B2 (en) * | 1999-12-14 | 2009-08-11 | Texas Instruments Incorporated | Arranging CELP information of one frame in a second packet |
US6745024B1 (en) | 2000-01-10 | 2004-06-01 | Qualcomm Incorporated | System and method for preparing and sending an electronic mail communication using a wireless communications device |
US6510409B1 (en) * | 2000-01-18 | 2003-01-21 | Conexant Systems, Inc. | Intelligent discontinuous transmission and comfort noise generation scheme for pulse code modulation speech coders |
US7127390B1 (en) | 2000-02-08 | 2006-10-24 | Mindspeed Technologies, Inc. | Rate determination coding |
EP1126651A1 (en) * | 2000-02-16 | 2001-08-22 | Lucent Technologies Inc. | Link adaptation for RT-EGPRS |
US6721368B1 (en) | 2000-03-04 | 2004-04-13 | Qualcomm Incorporated | Transmitter architectures for communications systems |
ATE553472T1 (de) * | 2000-04-24 | 2012-04-15 | Qualcomm Inc | Prädikitve dequantisierung von stimmhaften sprachsignalen |
US6584438B1 (en) | 2000-04-24 | 2003-06-24 | Qualcomm Incorporated | Frame erasure compensation method in a variable rate speech coder |
US6980527B1 (en) | 2000-04-25 | 2005-12-27 | Cwill Telecommunications, Inc. | Smart antenna CDMA wireless communication system |
US7080009B2 (en) * | 2000-05-01 | 2006-07-18 | Motorola, Inc. | Method and apparatus for reducing rate determination errors and their artifacts |
US6285682B1 (en) * | 2000-05-01 | 2001-09-04 | Motorola, Inc. | Method and apparatus for determining the frame rate of a frame |
FI115329B (sv) | 2000-05-08 | 2005-04-15 | Nokia Corp | Förfarande och arrangemang för att växla källsignalens bandbredd i en kommunikationsförbindelse som är utrustad för många bandbredder |
US7089181B2 (en) | 2001-05-30 | 2006-08-08 | Intel Corporation | Enhancing the intelligibility of received speech in a noisy environment |
US7035790B2 (en) | 2000-06-02 | 2006-04-25 | Canon Kabushiki Kaisha | Speech processing system |
US7072833B2 (en) | 2000-06-02 | 2006-07-04 | Canon Kabushiki Kaisha | Speech processing system |
US6954745B2 (en) | 2000-06-02 | 2005-10-11 | Canon Kabushiki Kaisha | Signal processing system |
US7010483B2 (en) | 2000-06-02 | 2006-03-07 | Canon Kabushiki Kaisha | Speech processing system |
US6735563B1 (en) | 2000-07-13 | 2004-05-11 | Qualcomm, Inc. | Method and apparatus for constructing voice templates for a speaker-independent voice recognition system |
US6671669B1 (en) * | 2000-07-18 | 2003-12-30 | Qualcomm Incorporated | combined engine system and method for voice recognition |
US6510142B1 (en) | 2000-07-21 | 2003-01-21 | Motorola, Inc. | Method and apparatus for reduced reversed traffic in a cellular telephone system |
US6856954B1 (en) * | 2000-07-28 | 2005-02-15 | Mindspeed Technologies, Inc. | Flexible variable rate vocoder for wireless communication systems |
US6728669B1 (en) * | 2000-08-07 | 2004-04-27 | Lucent Technologies Inc. | Relative pulse position in celp vocoding |
EP1944759B1 (en) * | 2000-08-09 | 2010-10-20 | Sony Corporation | Voice data processing device and processing method |
US6477502B1 (en) | 2000-08-22 | 2002-11-05 | Qualcomm Incorporated | Method and apparatus for using non-symmetric speech coders to produce non-symmetric links in a wireless communication system |
US7133823B2 (en) * | 2000-09-15 | 2006-11-07 | Mindspeed Technologies, Inc. | System for an adaptive excitation pattern for speech coding |
US6850884B2 (en) * | 2000-09-15 | 2005-02-01 | Mindspeed Technologies, Inc. | Selection of coding parameters based on spectral content of a speech signal |
US6842733B1 (en) | 2000-09-15 | 2005-01-11 | Mindspeed Technologies, Inc. | Signal processing system for filtering spectral content of a signal for speech coding |
US6937979B2 (en) * | 2000-09-15 | 2005-08-30 | Mindspeed Technologies, Inc. | Coding based on spectral content of a speech signal |
US6802035B2 (en) * | 2000-09-19 | 2004-10-05 | Intel Corporation | System and method of dynamically optimizing a transmission mode of wirelessly transmitted information |
US6760882B1 (en) | 2000-09-19 | 2004-07-06 | Intel Corporation | Mode selection for data transmission in wireless communication channels based on statistical parameters |
US7068683B1 (en) | 2000-10-25 | 2006-06-27 | Qualcomm, Incorporated | Method and apparatus for high rate packet data and low delay data transmissions |
US7171355B1 (en) * | 2000-10-25 | 2007-01-30 | Broadcom Corporation | Method and apparatus for one-stage and two-stage noise feedback coding of speech and audio signals |
US6973098B1 (en) | 2000-10-25 | 2005-12-06 | Qualcomm, Incorporated | Method and apparatus for determining a data rate in a high rate packet data wireless communications system |
DK1206104T3 (da) * | 2000-11-09 | 2006-10-30 | Koninkl Kpn Nv | Måling af en samtalekvalitet af en telefonforbindelse i et telekommunikationsnetværk |
US7606703B2 (en) * | 2000-11-15 | 2009-10-20 | Texas Instruments Incorporated | Layered celp system and method with varying perceptual filter or short-term postfilter strengths |
US6999430B2 (en) * | 2000-11-30 | 2006-02-14 | Qualcomm Incorporated | Method and apparatus for transmitting data traffic on a wireless communication channel |
US6804218B2 (en) | 2000-12-04 | 2004-10-12 | Qualcomm Incorporated | Method and apparatus for improved detection of rate errors in variable rate receivers |
US7472059B2 (en) * | 2000-12-08 | 2008-12-30 | Qualcomm Incorporated | Method and apparatus for robust speech classification |
US7505594B2 (en) * | 2000-12-19 | 2009-03-17 | Qualcomm Incorporated | Discontinuous transmission (DTX) controller system and method |
SE0004818D0 (sv) * | 2000-12-22 | 2000-12-22 | Coding Technologies Sweden Ab | Enhancing source coding systems by adaptive transposition |
US7346918B2 (en) | 2000-12-27 | 2008-03-18 | Z-Band, Inc. | Intelligent device system and method for distribution of digital signals on a wideband signal distribution system |
EP2627008A3 (en) | 2000-12-29 | 2013-09-11 | Intel Mobile Communications GmbH | Channel codec processor configurable for multiple wireless communications standards |
US7113522B2 (en) * | 2001-01-24 | 2006-09-26 | Qualcomm, Incorporated | Enhanced conversion of wideband signals to narrowband signals |
US7062445B2 (en) * | 2001-01-26 | 2006-06-13 | Microsoft Corporation | Quantization loop with heuristic approach |
US7120134B2 (en) * | 2001-02-15 | 2006-10-10 | Qualcomm, Incorporated | Reverse link channel architecture for a wireless communication system |
US20040204935A1 (en) * | 2001-02-21 | 2004-10-14 | Krishnasamy Anandakumar | Adaptive voice playout in VOP |
US6760587B2 (en) | 2001-02-23 | 2004-07-06 | Qualcomm Incorporated | Forward-link scheduling in a wireless communication system during soft and softer handoff |
US7289461B2 (en) | 2001-03-15 | 2007-10-30 | Qualcomm Incorporated | Communications using wideband terminals |
US20020181546A1 (en) * | 2001-03-23 | 2002-12-05 | Odenwalder Joseph P. | Preamble channels |
US6760576B2 (en) | 2001-03-27 | 2004-07-06 | Qualcomm Incorporated | Method and apparatus for enhanced rate determination in high data rate wireless communication systems |
US8199696B2 (en) * | 2001-03-29 | 2012-06-12 | Qualcomm Incorporated | Method and apparatus for power control in a wireless communication system |
US6625172B2 (en) | 2001-04-26 | 2003-09-23 | Joseph P. Odenwalder | Rescheduling scheduled transmissions |
US7230941B2 (en) | 2001-04-26 | 2007-06-12 | Qualcomm Incorporated | Preamble channel decoding |
JP4591939B2 (ja) * | 2001-05-15 | 2010-12-01 | Kddi株式会社 | 適応的符号化伝送装置および受信装置 |
US7170924B2 (en) * | 2001-05-17 | 2007-01-30 | Qualcomm, Inc. | System and method for adjusting combiner weights using an adaptive algorithm in wireless communications system |
US6990137B2 (en) * | 2001-05-17 | 2006-01-24 | Qualcomm, Incorporated | System and method for received signal prediction in wireless communications systems |
JP3859462B2 (ja) * | 2001-05-18 | 2006-12-20 | 株式会社東芝 | 予測パラメータ分析装置および予測パラメータ分析方法 |
US6789059B2 (en) | 2001-06-06 | 2004-09-07 | Qualcomm Incorporated | Reducing memory requirements of a codebook vector search |
GB2386808B (en) | 2001-06-28 | 2004-07-07 | Samsung Electronics Co Ltd | Apparatus and method for transmitting TFCI bits for a hard split mode in a CDMA mobile communication system |
US7489655B2 (en) * | 2001-07-06 | 2009-02-10 | Qualcomm, Incorporated | Method and apparatus for predictive scheduling in a bi-directional communication system |
JP2003044098A (ja) * | 2001-07-26 | 2003-02-14 | Nec Corp | 音声帯域拡張装置及び音声帯域拡張方法 |
US7110942B2 (en) * | 2001-08-14 | 2006-09-19 | Broadcom Corporation | Efficient excitation quantization in a noise feedback coding system using correlation techniques |
EP1428206B1 (en) * | 2001-08-17 | 2007-09-12 | Broadcom Corporation | Bit error concealment methods for speech coding |
US7162415B2 (en) * | 2001-11-06 | 2007-01-09 | The Regents Of The University Of California | Ultra-narrow bandwidth voice coding |
US7453801B2 (en) * | 2001-11-08 | 2008-11-18 | Qualcomm Incorporated | Admission control and resource allocation in a communication system supporting application flows having quality of service requirements |
CN1640045A (zh) * | 2001-12-05 | 2005-07-13 | 高通股份有限公司 | 调整通信系统服务质量的系统与方法 |
US7146313B2 (en) * | 2001-12-14 | 2006-12-05 | Microsoft Corporation | Techniques for measurement of perceptual audio quality |
US7027982B2 (en) * | 2001-12-14 | 2006-04-11 | Microsoft Corporation | Quality and rate control strategy for digital audio |
GB2383239B (en) * | 2001-12-15 | 2004-03-17 | Motorola Inc | A method and apparatus for transmitting data |
US7206740B2 (en) * | 2002-01-04 | 2007-04-17 | Broadcom Corporation | Efficient excitation quantization in noise feedback coding with general noise shaping |
JP3778087B2 (ja) * | 2002-01-18 | 2006-05-24 | 富士ゼロックス株式会社 | データ符号化装置及びデータ復号装置 |
US6957183B2 (en) * | 2002-03-20 | 2005-10-18 | Qualcomm Inc. | Method for robust voice recognition by analyzing redundant features of source signal |
US7313520B2 (en) * | 2002-03-20 | 2007-12-25 | The Directv Group, Inc. | Adaptive variable bit rate audio compression encoding |
US6980695B2 (en) * | 2002-06-28 | 2005-12-27 | Microsoft Corporation | Rate allocation for mixed content video |
US7321559B2 (en) * | 2002-06-28 | 2008-01-22 | Lucent Technologies Inc | System and method of noise reduction in receiving wireless transmission of packetized audio signals |
CA2392640A1 (en) * | 2002-07-05 | 2004-01-05 | Voiceage Corporation | A method and device for efficient in-based dim-and-burst signaling and half-rate max operation in variable bit-rate wideband speech coding for cdma wireless systems |
US8090577B2 (en) * | 2002-08-08 | 2012-01-03 | Qualcomm Incorported | Bandwidth-adaptive quantization |
JP2004151123A (ja) * | 2002-10-23 | 2004-05-27 | Nec Corp | 符号変換方法、符号変換装置、プログラム及びその記憶媒体 |
US7602722B2 (en) * | 2002-12-04 | 2009-10-13 | Nortel Networks Limited | Mobile assisted fast scheduling for the reverse link |
GB2396271B (en) * | 2002-12-10 | 2005-08-10 | Motorola Inc | A user terminal and method for voice communication |
US7698132B2 (en) * | 2002-12-17 | 2010-04-13 | Qualcomm Incorporated | Sub-sampled excitation waveform codebooks |
US7120447B1 (en) * | 2003-02-24 | 2006-10-10 | Nortel Networks Limited | Selectable mode vocoder management algorithm for CDMA based networks |
US6965859B2 (en) * | 2003-02-28 | 2005-11-15 | Xvd Corporation | Method and apparatus for audio compression |
KR100480341B1 (ko) * | 2003-03-13 | 2005-03-31 | 한국전자통신연구원 | 광대역 저전송률 음성 신호의 부호화기 |
US7009999B2 (en) | 2003-03-28 | 2006-03-07 | Qualcomm Incorporated | Selective variable rate encoding to regulate data frame size |
KR20050007977A (ko) * | 2003-07-12 | 2005-01-21 | 삼성전자주식회사 | 이동 통신 시스템에서의 보코더의 모드 및 전송율 제어 방법 |
US7577756B2 (en) | 2003-07-15 | 2009-08-18 | Special Devices, Inc. | Dynamically-and continuously-variable rate, asynchronous data transfer |
US7343291B2 (en) * | 2003-07-18 | 2008-03-11 | Microsoft Corporation | Multi-pass variable bitrate media encoding |
US7609763B2 (en) * | 2003-07-18 | 2009-10-27 | Microsoft Corporation | Advanced bi-directional predictive coding of video frames |
US7383180B2 (en) * | 2003-07-18 | 2008-06-03 | Microsoft Corporation | Constant bitrate media encoding techniques |
US7146309B1 (en) | 2003-09-02 | 2006-12-05 | Mindspeed Technologies, Inc. | Deriving seed values to generate excitation values in a speech coder |
US7613606B2 (en) * | 2003-10-02 | 2009-11-03 | Nokia Corporation | Speech codecs |
US7379875B2 (en) * | 2003-10-24 | 2008-05-27 | Microsoft Corporation | Systems and methods for generating audio thumbnails |
US7505764B2 (en) * | 2003-10-28 | 2009-03-17 | Motorola, Inc. | Method for retransmitting a speech packet |
US20050147131A1 (en) * | 2003-12-29 | 2005-07-07 | Nokia Corporation | Low-rate in-band data channel using CELP codewords |
US8473286B2 (en) * | 2004-02-26 | 2013-06-25 | Broadcom Corporation | Noise feedback coding system and method for providing generalized noise shaping within a simple filter structure |
KR100629997B1 (ko) * | 2004-02-26 | 2006-09-27 | 엘지전자 주식회사 | 오디오 신호의 인코딩 방법 |
WO2005086138A1 (ja) * | 2004-03-05 | 2005-09-15 | Matsushita Electric Industrial Co., Ltd. | エラー隠蔽装置およびエラー隠蔽方法 |
JP2005337573A (ja) | 2004-05-26 | 2005-12-08 | Sanden Corp | 熱交換器 |
JPWO2006008932A1 (ja) * | 2004-07-23 | 2008-05-01 | 松下電器産業株式会社 | 音声符号化装置および音声符号化方法 |
US8046217B2 (en) * | 2004-08-27 | 2011-10-25 | Panasonic Corporation | Geometric calculation of absolute phases for parametric stereo decoding |
EP2189978A1 (en) | 2004-08-30 | 2010-05-26 | QUALCOMM Incorporated | Adaptive De-Jitter Buffer for voice over IP |
SE528213C3 (sv) * | 2004-09-30 | 2006-10-31 | Ericsson Telefon Ab L M | Förfaranden och arrangemang för adaptiva trösklar vid val av kodek |
SE0402372D0 (sv) | 2004-09-30 | 2004-09-30 | Ericsson Telefon Ab L M | Signal coding |
US8085678B2 (en) | 2004-10-13 | 2011-12-27 | Qualcomm Incorporated | Media (voice) playback (de-jitter) buffer adjustments based on air interface |
US20060109819A1 (en) * | 2004-11-22 | 2006-05-25 | Marin James S | Method and apparatus for inter-system active handoff of a hybrid subscriber unit |
US7697480B2 (en) * | 2004-11-22 | 2010-04-13 | Motorola, Inc | Method and apparatus for inter-system active handoff of a hybrid subscriber unit |
US8102872B2 (en) | 2005-02-01 | 2012-01-24 | Qualcomm Incorporated | Method for discontinuous transmission and accurate reproduction of background noise information |
US20060224381A1 (en) * | 2005-04-04 | 2006-10-05 | Nokia Corporation | Detecting speech frames belonging to a low energy sequence |
US20060241937A1 (en) * | 2005-04-21 | 2006-10-26 | Ma Changxue C | Method and apparatus for automatically discriminating information bearing audio segments and background noise audio segments |
US7983301B2 (en) * | 2005-06-24 | 2011-07-19 | O2Micro International, Ltd. | Method for extended transmission capabilities of short message service |
WO2007003231A1 (en) * | 2005-06-30 | 2007-01-11 | Freescale Semiconductor, Inc | Vector crc computation on dsp |
US20070005347A1 (en) * | 2005-06-30 | 2007-01-04 | Kotzin Michael D | Method and apparatus for data frame construction |
JP5035816B2 (ja) * | 2005-07-14 | 2012-09-26 | 一般財団法人電力中央研究所 | 細孔内付着液体残留量推定方法 |
US7542421B2 (en) * | 2005-09-09 | 2009-06-02 | Tropos Networks | Adaptive control of transmission power and data rates of transmission links between access nodes of a mesh network |
CN1964244B (zh) * | 2005-11-08 | 2010-04-07 | 厦门致晟科技有限公司 | 一种用声码器收发数字信号的方法 |
KR101019936B1 (ko) * | 2005-12-02 | 2011-03-09 | 퀄컴 인코포레이티드 | 음성 파형의 정렬을 위한 시스템, 방법, 및 장치 |
JP4971351B2 (ja) * | 2005-12-05 | 2012-07-11 | クゥアルコム・インコーポレイテッド | トーンコンポーネントの検出のためのシステム、方法および装置 |
KR100744542B1 (ko) * | 2005-12-08 | 2007-08-01 | 한국전자통신연구원 | 가변대역 멀티코덱 QoS 제어 장치 및 방법 |
US8346544B2 (en) * | 2006-01-20 | 2013-01-01 | Qualcomm Incorporated | Selection of encoding modes and/or encoding rates for speech compression with closed loop re-decision |
US8032369B2 (en) * | 2006-01-20 | 2011-10-04 | Qualcomm Incorporated | Arbitrary average data rates for variable rate coders |
US8090573B2 (en) * | 2006-01-20 | 2012-01-03 | Qualcomm Incorporated | Selection of encoding modes and/or encoding rates for speech compression with open loop re-decision |
JP4816115B2 (ja) * | 2006-02-08 | 2011-11-16 | カシオ計算機株式会社 | 音声符号化装置及び音声符号化方法 |
US8036242B2 (en) * | 2006-02-15 | 2011-10-11 | Qualcomm Incorporated | Dynamic capacity operating point management for a vocoder in an access terminal |
US7720499B2 (en) * | 2006-02-27 | 2010-05-18 | Tropos Networks, Inc. | Regulation of transmission power control in mitigate self interference by optimizing link transmission parameters in a wireless network |
JP4771835B2 (ja) * | 2006-03-06 | 2011-09-14 | 株式会社リコー | トナー及び画像形成方法 |
FR2898443A1 (fr) * | 2006-03-13 | 2007-09-14 | France Telecom | Procede de codage d'un signal audio source, dispositif de codage, procede et dispositif de decodage, signal, produits programme d'ordinateur correspondants |
US7778828B2 (en) * | 2006-03-15 | 2010-08-17 | Sasken Communication Technologies Ltd. | Method and system for automatic gain control of a speech signal |
US8392176B2 (en) * | 2006-04-10 | 2013-03-05 | Qualcomm Incorporated | Processing of excitation in audio coding and decoding |
KR100900438B1 (ko) * | 2006-04-25 | 2009-06-01 | 삼성전자주식회사 | 음성 패킷 복구 장치 및 방법 |
DE102006025042B4 (de) * | 2006-05-26 | 2008-08-14 | Infineon Technologies Ag | Datenratenfehler-tolerante Synchronisation eines digitalen Empfängers |
US8036186B2 (en) * | 2006-07-26 | 2011-10-11 | Tropos Networks, Inc. | Adaptively setting transmission power levels of nodes within a wireless mesh network |
US8135047B2 (en) | 2006-07-31 | 2012-03-13 | Qualcomm Incorporated | Systems and methods for including an identifier with a packet associated with a speech signal |
US8260609B2 (en) | 2006-07-31 | 2012-09-04 | Qualcomm Incorporated | Systems, methods, and apparatus for wideband encoding and decoding of inactive frames |
KR100883652B1 (ko) * | 2006-08-03 | 2009-02-18 | 삼성전자주식회사 | 음성 구간 검출 방법 및 장치, 및 이를 이용한 음성 인식시스템 |
ATE463028T1 (de) * | 2006-09-13 | 2010-04-15 | Ericsson Telefon Ab L M | Verfahren und anordnungen für einen sprach- /audiosender und empfänger |
WO2008048807A2 (en) | 2006-10-06 | 2008-04-24 | Viasat, Inc. | Forward and reverse calibration for ground-based beamforming |
US7877253B2 (en) | 2006-10-06 | 2011-01-25 | Qualcomm Incorporated | Systems, methods, and apparatus for frame erasure recovery |
CN101523486B (zh) * | 2006-10-10 | 2013-08-14 | 高通股份有限公司 | 用于编码和解码音频信号的方法和设备 |
KR100833499B1 (ko) * | 2006-10-27 | 2008-05-29 | 한국전자통신연구원 | 가변 대역 멀티 코덱의 음성 품질 측정 장치 및 방법 |
CN100587186C (zh) * | 2006-11-02 | 2010-02-03 | 邹家祥 | 一种保温组合墙板构筑墙体的方法 |
US8279889B2 (en) * | 2007-01-04 | 2012-10-02 | Qualcomm Incorporated | Systems and methods for dimming a first packet associated with a first bit rate to a second packet associated with a second bit rate |
US8254455B2 (en) * | 2007-06-30 | 2012-08-28 | Microsoft Corporation | Computing collocated macroblock information for direct mode macroblocks |
US8428957B2 (en) | 2007-08-24 | 2013-04-23 | Qualcomm Incorporated | Spectral noise shaping in audio coding based on spectral dynamics in frequency sub-bands |
US20090198500A1 (en) * | 2007-08-24 | 2009-08-06 | Qualcomm Incorporated | Temporal masking in audio coding based on spectral dynamics in frequency sub-bands |
US20090094026A1 (en) * | 2007-10-03 | 2009-04-09 | Binshi Cao | Method of determining an estimated frame energy of a communication |
US8015002B2 (en) | 2007-10-24 | 2011-09-06 | Qnx Software Systems Co. | Dynamic noise reduction using linear model fitting |
US8606566B2 (en) * | 2007-10-24 | 2013-12-10 | Qnx Software Systems Limited | Speech enhancement through partial speech reconstruction |
US8326617B2 (en) | 2007-10-24 | 2012-12-04 | Qnx Software Systems Limited | Speech enhancement with minimum gating |
WO2009078093A1 (ja) * | 2007-12-18 | 2009-06-25 | Fujitsu Limited | 非音声区間検出方法及び非音声区間検出装置 |
RU2483367C2 (ru) * | 2008-03-14 | 2013-05-27 | Панасоник Корпорэйшн | Устройство кодирования, устройство декодирования и способ для их работы |
US8325800B2 (en) | 2008-05-07 | 2012-12-04 | Microsoft Corporation | Encoding streaming media as a high bit rate layer, a low bit rate layer, and one or more intermediate bit rate layers |
US8379851B2 (en) | 2008-05-12 | 2013-02-19 | Microsoft Corporation | Optimized client side rate control and indexed file layout for streaming media |
US7925774B2 (en) * | 2008-05-30 | 2011-04-12 | Microsoft Corporation | Media streaming using an index file |
US7948887B2 (en) * | 2008-06-24 | 2011-05-24 | Microsoft Corporation | Network bandwidth measurement |
US8144602B2 (en) * | 2008-08-06 | 2012-03-27 | Jds Uniphase Corporation | Network load tester with real-time detection and recording |
US8265140B2 (en) | 2008-09-30 | 2012-09-11 | Microsoft Corporation | Fine-grained client-side control of scalable media delivery |
US8964692B2 (en) * | 2008-11-10 | 2015-02-24 | Qualcomm Incorporated | Spectrum sensing of bluetooth using a sequence of energy detection measurements |
EP2211335A1 (en) * | 2009-01-21 | 2010-07-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus, method and computer program for obtaining a parameter describing a variation of a signal characteristic of a signal |
US8189666B2 (en) | 2009-02-02 | 2012-05-29 | Microsoft Corporation | Local picture identifier and computation of co-located information |
US8949114B2 (en) | 2009-06-04 | 2015-02-03 | Optis Wireless Technology, Llc | Method and arrangement for estimating the quality degradation of a processed signal |
KR20110001130A (ko) * | 2009-06-29 | 2011-01-06 | 삼성전자주식회사 | 가중 선형 예측 변환을 이용한 오디오 신호 부호화 및 복호화 장치 및 그 방법 |
WO2011014512A1 (en) | 2009-07-27 | 2011-02-03 | Scti Holdings, Inc | System and method for noise reduction in processing speech signals by targeting speech and disregarding noise |
US8811200B2 (en) | 2009-09-22 | 2014-08-19 | Qualcomm Incorporated | Physical layer metrics to support adaptive station-dependent channel state information feedback rate in multi-user communication systems |
EP2816560A1 (en) | 2009-10-19 | 2014-12-24 | Telefonaktiebolaget L M Ericsson (PUBL) | Method and background estimator for voice activity detection |
KR101761629B1 (ko) * | 2009-11-24 | 2017-07-26 | 엘지전자 주식회사 | 오디오 신호 처리 방법 및 장치 |
US8781822B2 (en) * | 2009-12-22 | 2014-07-15 | Qualcomm Incorporated | Audio and speech processing with optimal bit-allocation for constant bit rate applications |
US20110196673A1 (en) * | 2010-02-11 | 2011-08-11 | Qualcomm Incorporated | Concealing lost packets in a sub-band coding decoder |
US8374858B2 (en) * | 2010-03-09 | 2013-02-12 | Dts, Inc. | Scalable lossless audio codec and authoring tool |
US9082416B2 (en) * | 2010-09-16 | 2015-07-14 | Qualcomm Incorporated | Estimating a pitch lag |
PT2676267T (pt) | 2011-02-14 | 2017-09-26 | Fraunhofer Ges Forschung | Codificação e descodificação de posições de pulso de faixas de um sinal de áudio |
WO2012110415A1 (en) | 2011-02-14 | 2012-08-23 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for processing a decoded audio signal in a spectral domain |
EP2676270B1 (en) | 2011-02-14 | 2017-02-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Coding a portion of an audio signal using a transient detection and a quality result |
KR101551046B1 (ko) | 2011-02-14 | 2015-09-07 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | 저-지연 통합 스피치 및 오디오 코딩에서 에러 은닉을 위한 장치 및 방법 |
TWI488176B (zh) | 2011-02-14 | 2015-06-11 | Fraunhofer Ges Forschung | 音訊信號音軌脈衝位置之編碼與解碼技術 |
EP2676265B1 (en) | 2011-02-14 | 2019-04-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for encoding an audio signal using an aligned look-ahead portion |
WO2012110478A1 (en) | 2011-02-14 | 2012-08-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Information signal representation using lapped transform |
JP5969513B2 (ja) | 2011-02-14 | 2016-08-17 | フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン | 不活性相の間のノイズ合成を用いるオーディオコーデック |
BR112013020587B1 (pt) | 2011-02-14 | 2021-03-09 | Fraunhofer-Gesellschaft Zur Forderung De Angewandten Forschung E.V. | esquema de codificação com base em previsão linear utilizando modelagem de ruído de domínio espectral |
US8762136B2 (en) * | 2011-05-03 | 2014-06-24 | Lsi Corporation | System and method of speech compression using an inter frame parameter correlation |
US8990074B2 (en) | 2011-05-24 | 2015-03-24 | Qualcomm Incorporated | Noise-robust speech coding mode classification |
FR2977969A1 (fr) * | 2011-07-12 | 2013-01-18 | France Telecom | Adaptation de fenetres de ponderation d'analyse ou de synthese pour un codage ou decodage par transformee |
US9208796B2 (en) * | 2011-08-22 | 2015-12-08 | Genband Us Llc | Estimation of speech energy based on code excited linear prediction (CELP) parameters extracted from a partially-decoded CELP-encoded bit stream and applications of same |
EP2798631B1 (en) * | 2011-12-21 | 2016-03-23 | Huawei Technologies Co., Ltd. | Adaptively encoding pitch lag for voiced speech |
US9111531B2 (en) * | 2012-01-13 | 2015-08-18 | Qualcomm Incorporated | Multiple coding mode signal classification |
TWI591620B (zh) | 2012-03-21 | 2017-07-11 | 三星電子股份有限公司 | 產生高頻雜訊的方法 |
JP6180544B2 (ja) | 2012-12-21 | 2017-08-16 | フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン | オーディオ信号の不連続伝送における高スペクトル−時間分解能を持つコンフォートノイズの生成 |
BR112015014217B1 (pt) * | 2012-12-21 | 2021-11-03 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V | Adição de ruído de conforto para modelagem do ruído de fundo em baixas taxas de bits |
EP3217398B1 (en) | 2013-04-05 | 2019-08-14 | Dolby International AB | Advanced quantizer |
FR3008533A1 (fr) * | 2013-07-12 | 2015-01-16 | Orange | Facteur d'echelle optimise pour l'extension de bande de frequence dans un decodeur de signaux audiofrequences |
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 |
US9570095B1 (en) * | 2014-01-17 | 2017-02-14 | Marvell International Ltd. | Systems and methods for instantaneous noise estimation |
US9721580B2 (en) * | 2014-03-31 | 2017-08-01 | Google Inc. | Situation dependent transient suppression |
CN105023579A (zh) * | 2014-04-30 | 2015-11-04 | 中国电信股份有限公司 | 语音通信中语音编码实现方法、装置和通信终端 |
EP2980796A1 (en) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method and apparatus for processing an audio signal, audio decoder, and audio encoder |
TWI602172B (zh) * | 2014-08-27 | 2017-10-11 | 弗勞恩霍夫爾協會 | 使用參數以加強隱蔽之用於編碼及解碼音訊內容的編碼器、解碼器及方法 |
CN104833105A (zh) * | 2015-05-28 | 2015-08-12 | 芜湖美的厨卫电器制造有限公司 | 热水器和热水器系统 |
US11631421B2 (en) * | 2015-10-18 | 2023-04-18 | Solos Technology Limited | Apparatuses and methods for enhanced speech recognition in variable environments |
KR102595478B1 (ko) * | 2016-01-03 | 2023-10-27 | 아우로 테크놀로지스 엔브이 | 예측자 모델을 이용한 신호 인코더, 디코더 및 방법 |
US11227214B2 (en) | 2017-11-14 | 2022-01-18 | Advanced Micro Devices, Inc. | Memory bandwidth reduction techniques for low power convolutional neural network inference applications |
EA038803B1 (ru) * | 2017-12-25 | 2021-10-21 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт автоматики им. Н.Л. Духова" | Способ адаптивной цифровой фильтрации импульсных помех и фильтр для его реализации |
US11948073B2 (en) | 2018-04-20 | 2024-04-02 | Advanced Micro Devices, Inc. | Machine learning inference engine scalability |
RU2691122C1 (ru) * | 2018-06-13 | 2019-06-11 | Ордена трудового Красного Знамени федеральное государственное бюджетное образовательное учреждение высшего образования "Московский технический университет связи и информатики" (МТУСИ) | Способ и устройство компандирования звуковых вещательных сигналов |
US11775799B2 (en) | 2018-08-02 | 2023-10-03 | Advanced Micro Devices, Inc. | Runtime extension for neural network training with heterogeneous memory |
US11769041B2 (en) | 2018-10-31 | 2023-09-26 | Advanced Micro Devices, Inc. | Low latency long short-term memory inference with sequence interleaving |
US10756795B2 (en) | 2018-12-18 | 2020-08-25 | XCOM Labs, Inc. | User equipment with cellular link and peer-to-peer link |
US11063645B2 (en) | 2018-12-18 | 2021-07-13 | XCOM Labs, Inc. | Methods of wirelessly communicating with a group of devices |
CN111338974A (zh) | 2018-12-19 | 2020-06-26 | 超威半导体公司 | 用于矩阵数学指令集的图块化算法 |
CN111353575A (zh) | 2018-12-20 | 2020-06-30 | 超威半导体公司 | 用于卷积神经网络的图块化格式 |
US11330649B2 (en) | 2019-01-25 | 2022-05-10 | XCOM Labs, Inc. | Methods and systems of multi-link peer-to-peer communications |
US10756767B1 (en) | 2019-02-05 | 2020-08-25 | XCOM Labs, Inc. | User equipment for wirelessly communicating cellular signal with another user equipment |
CN111723918A (zh) | 2019-03-18 | 2020-09-29 | 超威半导体公司 | 用于卷积内核的自动生成和调谐工具 |
US11610142B2 (en) | 2019-05-28 | 2023-03-21 | Ati Technologies Ulc | Safety monitor for image misclassification |
US11210199B2 (en) | 2019-05-31 | 2021-12-28 | Ati Technologies Ulc | Safety monitor for invalid image transform |
US11250867B1 (en) * | 2019-10-08 | 2022-02-15 | Rockwell Collins, Inc. | Incorporating data into a voice signal with zero overhead |
JP7332890B2 (ja) * | 2019-11-19 | 2023-08-24 | アイコム株式会社 | 音声通信システム、音声通信方法、および、音声通信プログラム |
US11023390B1 (en) * | 2020-03-27 | 2021-06-01 | Arm Limited | Resizing circuitry |
CN112767953B (zh) * | 2020-06-24 | 2024-01-23 | 腾讯科技(深圳)有限公司 | 语音编码方法、装置、计算机设备和存储介质 |
Family Cites Families (71)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US32580A (en) * | 1861-06-18 | Water-elevatok | ||
US3633107A (en) * | 1970-06-04 | 1972-01-04 | Bell Telephone Labor Inc | Adaptive signal processor for diversity radio receivers |
JPS5017711A (sv) * | 1973-06-15 | 1975-02-25 | ||
US3988674A (en) * | 1975-03-17 | 1976-10-26 | Communications Satellite Corporation (Comsat) | Frame synchronization in speech predictive encoded communication system |
US4076958A (en) * | 1976-09-13 | 1978-02-28 | E-Systems, Inc. | Signal synthesizer spectrum contour scaler |
US4214125A (en) * | 1977-01-21 | 1980-07-22 | Forrest S. Mozer | Method and apparatus for speech synthesizing |
CA1123955A (en) * | 1978-03-30 | 1982-05-18 | Tetsu Taguchi | Speech analysis and synthesis apparatus |
DE3023375C1 (sv) * | 1980-06-23 | 1987-12-03 | Siemens Ag, 1000 Berlin Und 8000 Muenchen, De | |
US4379949A (en) * | 1981-08-10 | 1983-04-12 | Motorola, Inc. | Method of and means for variable-rate coding of LPC parameters |
JPS6011360B2 (ja) * | 1981-12-15 | 1985-03-25 | ケイディディ株式会社 | 音声符号化方式 |
US4535472A (en) * | 1982-11-05 | 1985-08-13 | At&T Bell Laboratories | Adaptive bit allocator |
DE3276651D1 (en) * | 1982-11-26 | 1987-07-30 | Ibm | Speech signal coding method and apparatus |
DE3370423D1 (en) * | 1983-06-07 | 1987-04-23 | Ibm | Process for activity detection in a voice transmission system |
US4672670A (en) * | 1983-07-26 | 1987-06-09 | Advanced Micro Devices, Inc. | Apparatus and methods for coding, decoding, analyzing and synthesizing a signal |
EP0163829B1 (en) * | 1984-03-21 | 1989-08-23 | Nippon Telegraph And Telephone Corporation | Speech signal processing system |
IT1179803B (it) * | 1984-10-30 | 1987-09-16 | Cselt Centro Studi Lab Telecom | Metodo e dispositivo per la correzione di errori causati da rumore di tipo impulsivo su segnali vocali codificati con bassa velocita di ci fra e trasmessi su canali di comunicazione radio |
US4937873A (en) * | 1985-03-18 | 1990-06-26 | Massachusetts Institute Of Technology | Computationally efficient sine wave synthesis for acoustic waveform processing |
US4885790A (en) * | 1985-03-18 | 1989-12-05 | Massachusetts Institute Of Technology | Processing of acoustic waveforms |
US4856068A (en) * | 1985-03-18 | 1989-08-08 | Massachusetts Institute Of Technology | Audio pre-processing methods and apparatus |
US4831636A (en) * | 1985-06-28 | 1989-05-16 | Fujitsu Limited | Coding transmission equipment for carrying out coding with adaptive quantization |
US4827517A (en) * | 1985-12-26 | 1989-05-02 | American Telephone And Telegraph Company, At&T Bell Laboratories | Digital speech processor using arbitrary excitation coding |
CA1299750C (en) * | 1986-01-03 | 1992-04-28 | Ira Alan Gerson | Optimal method of data reduction in a speech recognition system |
US4797929A (en) * | 1986-01-03 | 1989-01-10 | Motorola, Inc. | Word recognition in a speech recognition system using data reduced word templates |
JPH0748695B2 (ja) * | 1986-05-23 | 1995-05-24 | 株式会社日立製作所 | 音声符号化方式 |
US4899384A (en) * | 1986-08-25 | 1990-02-06 | Ibm Corporation | Table controlled dynamic bit allocation in a variable rate sub-band speech coder |
US4771465A (en) * | 1986-09-11 | 1988-09-13 | American Telephone And Telegraph Company, At&T Bell Laboratories | Digital speech sinusoidal vocoder with transmission of only subset of harmonics |
US4797925A (en) * | 1986-09-26 | 1989-01-10 | Bell Communications Research, Inc. | Method for coding speech at low bit rates |
US4903301A (en) * | 1987-02-27 | 1990-02-20 | Hitachi, Ltd. | Method and system for transmitting variable rate speech signal |
US5054072A (en) * | 1987-04-02 | 1991-10-01 | Massachusetts Institute Of Technology | Coding of acoustic waveforms |
US4969192A (en) * | 1987-04-06 | 1990-11-06 | Voicecraft, Inc. | Vector adaptive predictive coder for speech and audio |
US4868867A (en) * | 1987-04-06 | 1989-09-19 | Voicecraft Inc. | Vector excitation speech or audio coder for transmission or storage |
US5202953A (en) * | 1987-04-08 | 1993-04-13 | Nec Corporation | Multi-pulse type coding system with correlation calculation by backward-filtering operation for multi-pulse searching |
US4890327A (en) * | 1987-06-03 | 1989-12-26 | Itt Corporation | Multi-rate digital voice coder apparatus |
US4831624A (en) * | 1987-06-04 | 1989-05-16 | Motorola, Inc. | Error detection method for sub-band coding |
US4802171A (en) * | 1987-06-04 | 1989-01-31 | Motorola, Inc. | Method for error correction in digitally encoded speech |
US4899385A (en) * | 1987-06-26 | 1990-02-06 | American Telephone And Telegraph Company | Code excited linear predictive vocoder |
CA1337217C (en) * | 1987-08-28 | 1995-10-03 | Daniel Kenneth Freeman | Speech coding |
AU2428988A (en) * | 1987-09-02 | 1989-03-31 | Eltech Systems Corporation | Non-consumable anode for molten salt electrolysis |
US4811404A (en) * | 1987-10-01 | 1989-03-07 | Motorola, Inc. | Noise suppression system |
US4852179A (en) * | 1987-10-05 | 1989-07-25 | Motorola, Inc. | Variable frame rate, fixed bit rate vocoding method |
US4896361A (en) * | 1988-01-07 | 1990-01-23 | Motorola, Inc. | Digital speech coder having improved vector excitation source |
EP0331857B1 (en) * | 1988-03-08 | 1992-05-20 | International Business Machines Corporation | Improved low bit rate voice coding method and system |
DE3883519T2 (de) * | 1988-03-08 | 1994-03-17 | Ibm | Verfahren und Einrichtung zur Sprachkodierung mit mehreren Datenraten. |
US5023910A (en) * | 1988-04-08 | 1991-06-11 | At&T Bell Laboratories | Vector quantization in a harmonic speech coding arrangement |
US4864561A (en) * | 1988-06-20 | 1989-09-05 | American Telephone And Telegraph Company | Technique for improved subjective performance in a communication system using attenuated noise-fill |
JPH0783315B2 (ja) * | 1988-09-26 | 1995-09-06 | 富士通株式会社 | 可変レート音声信号符号化方式 |
US5077798A (en) * | 1988-09-28 | 1991-12-31 | Hitachi, Ltd. | Method and system for voice coding based on vector quantization |
EP0364647B1 (en) * | 1988-10-19 | 1995-02-22 | International Business Machines Corporation | Improvement to vector quantizing coder |
NL8901032A (nl) * | 1988-11-10 | 1990-06-01 | Philips Nv | Coder om extra informatie op te nemen in een digitaal audiosignaal met een tevoren bepaald formaat, een decoder om deze extra informatie uit dit digitale signaal af te leiden, een inrichting voor het opnemen van een digitaal signaal op een registratiedrager, voorzien van de coder, en een registratiedrager verkregen met deze inrichting. |
JP3033060B2 (ja) * | 1988-12-22 | 2000-04-17 | 国際電信電話株式会社 | 音声予測符号化・復号化方式 |
CA2005115C (en) * | 1989-01-17 | 1997-04-22 | Juin-Hwey Chen | Low-delay code-excited linear predictive coder for speech or audio |
US5222189A (en) * | 1989-01-27 | 1993-06-22 | Dolby Laboratories Licensing Corporation | Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio |
DE68916944T2 (de) * | 1989-04-11 | 1995-03-16 | Ibm | Verfahren zur schnellen Bestimmung der Grundfrequenz in Sprachcodierern mit langfristiger Prädiktion. |
US5060269A (en) * | 1989-05-18 | 1991-10-22 | General Electric Company | Hybrid switched multi-pulse/stochastic speech coding technique |
US4975956A (en) * | 1989-07-26 | 1990-12-04 | Itt Corporation | Low-bit-rate speech coder using LPC data reduction processing |
GB2235354A (en) * | 1989-08-16 | 1991-02-27 | Philips Electronic Associated | Speech coding/encoding using celp |
US5091945A (en) * | 1989-09-28 | 1992-02-25 | At&T Bell Laboratories | Source dependent channel coding with error protection |
AU6174290A (en) * | 1989-10-06 | 1991-04-28 | Motorola, Inc. | Error detection/correction scheme for vocoders |
US5307441A (en) * | 1989-11-29 | 1994-04-26 | Comsat Corporation | Wear-toll quality 4.8 kbps speech codec |
JPH03181232A (ja) * | 1989-12-11 | 1991-08-07 | Toshiba Corp | 可変レート符号化方式 |
US5097507A (en) * | 1989-12-22 | 1992-03-17 | General Electric Company | Fading bit error protection for digital cellular multi-pulse speech coder |
CH680030A5 (sv) * | 1990-03-22 | 1992-05-29 | Ascom Zelcom Ag | |
JP3102015B2 (ja) * | 1990-05-28 | 2000-10-23 | 日本電気株式会社 | 音声復号化方法 |
US5103459B1 (en) * | 1990-06-25 | 1999-07-06 | Qualcomm Inc | System and method for generating signal waveforms in a cdma cellular telephone system |
US5235671A (en) * | 1990-10-15 | 1993-08-10 | Gte Laboratories Incorporated | Dynamic bit allocation subband excited transform coding method and apparatus |
US5187745A (en) * | 1991-06-27 | 1993-02-16 | Motorola, Inc. | Efficient codebook search for CELP vocoders |
CA2568984C (en) * | 1991-06-11 | 2007-07-10 | Qualcomm Incorporated | Variable rate vocoder |
US5734789A (en) * | 1992-06-01 | 1998-03-31 | Hughes Electronics | Voiced, unvoiced or noise modes in a CELP vocoder |
US5495555A (en) * | 1992-06-01 | 1996-02-27 | Hughes Aircraft Company | High quality low bit rate celp-based speech codec |
US5566206A (en) * | 1993-06-18 | 1996-10-15 | Qualcomm Incorporated | Method and apparatus for determining data rate of transmitted variable rate data in a communications receiver |
US5537410A (en) * | 1994-09-15 | 1996-07-16 | Oki Telecom | Subsequent frame variable data rate indication method |
-
1992
- 1992-06-03 CA CA002568984A patent/CA2568984C/en not_active Expired - Lifetime
- 1992-06-03 HU HU9303533A patent/HU215861B/hu unknown
- 1992-06-03 SG SG1996007441A patent/SG70558A1/en unknown
- 1992-06-03 EP EP92913505A patent/EP0588932B1/en not_active Expired - Lifetime
- 1992-06-03 RU RU93058657A patent/RU2107951C1/ru active
- 1992-06-03 AT AT01103641T patent/ATE272883T1/de active
- 1992-06-03 ES ES01103640T patent/ES2240252T3/es not_active Expired - Lifetime
- 1992-06-03 ES ES01103641T patent/ES2225321T3/es not_active Expired - Lifetime
- 1992-06-03 JP JP50090293A patent/JP3432822B2/ja not_active Expired - Lifetime
- 1992-06-03 EP EP08016577A patent/EP1998319B1/en not_active Expired - Lifetime
- 1992-06-03 ES ES92913505T patent/ES2166355T3/es not_active Expired - Lifetime
- 1992-06-03 AT AT01103640T patent/ATE294441T1/de active
- 1992-06-03 DK DK92913505T patent/DK0588932T3/da active
- 1992-06-03 DE DE69233794T patent/DE69233794D1/de not_active Expired - Lifetime
- 1992-06-03 ES ES08016577T patent/ES2348319T3/es not_active Expired - Lifetime
- 1992-06-03 BR BR9206143A patent/BR9206143A/pt not_active IP Right Cessation
- 1992-06-03 DE DE69233397T patent/DE69233397T2/de not_active Expired - Lifetime
- 1992-06-03 EP EP06005794A patent/EP1675100A2/en not_active Withdrawn
- 1992-06-03 WO PCT/US1992/004605 patent/WO1992022891A1/en active Application Filing
- 1992-06-03 AT AT92913505T patent/ATE208945T1/de active
- 1992-06-03 CA CA002483296A patent/CA2483296C/en not_active Expired - Lifetime
- 1992-06-03 CA CA002102099A patent/CA2102099C/en not_active Expired - Lifetime
- 1992-06-03 EP EP06025869A patent/EP1763020A3/en not_active Withdrawn
- 1992-06-03 EP EP01103640A patent/EP1107231B1/en not_active Expired - Lifetime
- 1992-06-03 DE DE69233502T patent/DE69233502T2/de not_active Expired - Lifetime
- 1992-06-03 CA CA002483324A patent/CA2483324C/en not_active Expired - Lifetime
- 1992-06-03 CA CA002635914A patent/CA2635914A1/en not_active Abandoned
- 1992-06-03 AT AT08016577T patent/ATE477571T1/de not_active IP Right Cessation
- 1992-06-03 AU AU21865/92A patent/AU671952B2/en not_active Expired
- 1992-06-03 CA CA002483322A patent/CA2483322C/en not_active Expired - Lifetime
- 1992-06-03 DE DE69232202T patent/DE69232202T2/de not_active Expired - Lifetime
- 1992-06-03 DK DK01103641T patent/DK1126437T3/da active
- 1992-06-03 EP EP01103641A patent/EP1126437B1/en not_active Expired - Lifetime
- 1992-06-03 EP EP01116324A patent/EP1162601A3/en not_active Withdrawn
- 1992-06-03 EP EP02007854A patent/EP1239456A1/en not_active Withdrawn
- 1992-06-04 ZA ZA924082A patent/ZA924082B/xx unknown
- 1992-06-09 IL IL11398692A patent/IL113986A/en not_active IP Right Cessation
- 1992-06-09 IL IL11398792A patent/IL113987A/en not_active IP Right Cessation
- 1992-06-09 IL IL11398892A patent/IL113988A/en not_active IP Right Cessation
- 1992-06-09 IL IL10214692A patent/IL102146A/en not_active IP Right Cessation
- 1992-06-11 CN CNB011231645A patent/CN1286086C/zh not_active Expired - Lifetime
- 1992-06-11 CN CNB011229659A patent/CN1196271C/zh not_active Expired - Lifetime
- 1992-06-11 MX MX9202808A patent/MX9202808A/es unknown
- 1992-06-11 CN CNB021055114A patent/CN1220334C/zh not_active Expired - Lifetime
- 1992-06-11 CN CNA2006101003661A patent/CN1909059A/zh active Pending
- 1992-06-11 CN CN92104618A patent/CN1091535C/zh not_active Expired - Lifetime
-
1993
- 1993-01-14 US US08/004,484 patent/US5414796A/en not_active Expired - Lifetime
- 1993-12-10 NO NO19934544A patent/NO319559B1/no not_active IP Right Cessation
- 1993-12-13 FI FI935597A patent/FI120425B/sv not_active IP Right Cessation
-
1994
- 1994-12-23 US US08/363,170 patent/US5657420A/en not_active Expired - Lifetime
-
1996
- 1996-07-31 AU AU60893/96A patent/AU693374B2/en not_active Expired
- 1996-12-06 CN CN96123201A patent/CN1119796C/zh not_active Expired - Lifetime
- 1996-12-06 CN CN96118597A patent/CN1112673C/zh not_active Expired - Lifetime
-
1997
- 1997-01-23 US US08/788,728 patent/US5778338A/en not_active Expired - Lifetime
- 1997-02-21 AU AU14825/97A patent/AU711484B2/en not_active Expired
-
1998
- 1998-12-28 HK HK98116163A patent/HK1014796A1/xx not_active IP Right Cessation
-
2001
- 2001-05-14 JP JP2001144031A patent/JP3566669B2/ja not_active Expired - Lifetime
- 2001-07-10 FI FI20011509A patent/FI20011509A/sv not_active Application Discontinuation
- 2001-07-10 FI FI20011508A patent/FI20011508A/sv not_active Application Discontinuation
- 2001-11-08 JP JP2001343016A patent/JP2002202800A/ja active Pending
-
2002
- 2002-04-09 CN CN02105511A patent/CN1398052A/zh active Granted
-
2003
- 2003-06-17 JP JP2003172114A patent/JP3751957B2/ja not_active Expired - Lifetime
-
2004
- 2004-09-23 HK HK04107333A patent/HK1064785A1/xx not_active IP Right Cessation
-
2005
- 2005-01-26 JP JP2005018692A patent/JP3955600B2/ja not_active Expired - Lifetime
- 2005-09-21 JP JP2005273821A patent/JP3964915B2/ja not_active Expired - Lifetime
-
2006
- 2006-04-11 JP JP2006108635A patent/JP4191746B2/ja not_active Expired - Lifetime
- 2006-12-15 FI FI20061121A patent/FI118702B/sv not_active IP Right Cessation
- 2006-12-15 FI FI20061122A patent/FI20061122L/sv not_active Application Discontinuation
-
2009
- 2009-06-02 HK HK09104958.3A patent/HK1127152A1/xx not_active IP Right Cessation
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI118702B (sv) | Vocoder med variabel hastighet |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Ref document number: 118702 Country of ref document: FI |
|
MA | Patent expired |