SE418133B - Deltamodulationsforfarande - Google Patents
DeltamodulationsforfarandeInfo
- Publication number
- SE418133B SE418133B SE7713820A SE7713820A SE418133B SE 418133 B SE418133 B SE 418133B SE 7713820 A SE7713820 A SE 7713820A SE 7713820 A SE7713820 A SE 7713820A SE 418133 B SE418133 B SE 418133B
- Authority
- SE
- Sweden
- Prior art keywords
- delta
- modulated
- signals
- modulated data
- amplifier
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 19
- 230000003044 adaptive effect Effects 0.000 claims description 15
- 238000013139 quantization Methods 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000003595 spectral effect Effects 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 2
- 101100269328 Caenorhabditis elegans aff-1 gene Proteins 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/06—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation
- H04B14/062—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using delta modulation or one-bit differential modulation [1DPCM]
- H04B14/064—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using delta modulation or one-bit differential modulation [1DPCM] with adaptive feedback
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2656975A DE2656975C3 (de) | 1976-12-16 | 1976-12-16 | Verfahren zur Übertragung von modulierten Datensignalen mittels adaptiver Deltamodulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7713820L SE7713820L (sv) | 1978-06-17 |
| SE418133B true SE418133B (sv) | 1981-05-04 |
Family
ID=5995673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7713820A SE418133B (sv) | 1976-12-16 | 1977-12-06 | Deltamodulationsforfarande |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4215311A (fr) |
| JP (1) | JPS5394758A (fr) |
| AT (1) | AT356711B (fr) |
| CH (1) | CH626204A5 (fr) |
| DE (1) | DE2656975C3 (fr) |
| FR (1) | FR2374779A1 (fr) |
| GB (1) | GB1567283A (fr) |
| IE (1) | IE45851B1 (fr) |
| SE (1) | SE418133B (fr) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2906886C2 (de) * | 1979-02-22 | 1982-03-25 | TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Schaltungsanordnung zur Schrittakt-Gewinnung |
| JPS55135421A (en) * | 1979-04-09 | 1980-10-22 | Nippon Telegr & Teleph Corp <Ntt> | Adaptive prediction coding system |
| DE3002960A1 (de) * | 1980-01-29 | 1981-09-10 | TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Adaptiver deltamodulator |
| US4352191A (en) * | 1980-05-19 | 1982-09-28 | Un Chong K | Hybrid companding delta modulation system |
| US4411002A (en) * | 1981-09-29 | 1983-10-18 | Magnavox Government And Industrial Electronics Company | Method and apparatus for a continuously variable slope delta range extender |
| GB2128825A (en) * | 1982-10-20 | 1984-05-02 | Dbx | Analog to digital and digital to analog converter |
| DE3490349T1 (de) * | 1983-08-01 | 1985-09-19 | Robinton Products, Inc., Sunnyvale, Calif. | Verfahren und Anordnung zur Leistungsmessung |
| US4709375A (en) * | 1983-09-27 | 1987-11-24 | Robinton Products, Inc. | Digital phase selection system for signal multipliers |
| US4583234A (en) * | 1983-08-15 | 1986-04-15 | Rockwell International Corporation | Decision feedback equalizing apparatus |
| JPS6096035A (ja) * | 1983-10-07 | 1985-05-29 | ドルビー・ラボラトリーズ・ライセンシング・コーポレーシヨン | スペクトルエンファシス・デェンファシス回路 |
| US4700362A (en) * | 1983-10-07 | 1987-10-13 | Dolby Laboratories Licensing Corporation | A-D encoder and D-A decoder system |
| EP0232626B1 (fr) * | 1985-12-26 | 1993-02-10 | Matsushita Electric Industrial Co., Ltd. | Méthode de transmission d'un signal numérique ayant un taux d'erreur moindre en présence de transmission multivoie |
| US6486810B1 (en) * | 2001-01-16 | 2002-11-26 | 3Com Corporation | Method and apparatus for continuously variable slope delta modulation coding of signals |
| US6700520B1 (en) * | 2002-09-16 | 2004-03-02 | Motorola, Inc. | Multi-bit continuous time sigma-delta ADC |
| JP2005135342A (ja) * | 2003-10-31 | 2005-05-26 | Sanyo Electric Co Ltd | 可変ゲイン積分器 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1207436B (de) * | 1964-06-03 | 1965-12-23 | Standard Elektrik Lorenz Ag | Nichtlineares Codier- bzw. Decodier-System |
| GB1208774A (en) * | 1967-02-10 | 1970-10-14 | Mini Of Technology | Improvements in or relating to delta-modulation telecommunications apparatus |
| US3806806A (en) * | 1972-11-20 | 1974-04-23 | Bell Telephone Labor Inc | Adaptive data modulator |
| US3896399A (en) * | 1973-07-19 | 1975-07-22 | Motorola Inc | Loop filter for delta modulator |
| DE2355676C3 (de) * | 1973-11-07 | 1979-01-18 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Schaltungsanordnung zur Übertragung von Signalen mit Differenz-Pulscodemodulation (DPCM) |
| US4123709A (en) * | 1977-01-24 | 1978-10-31 | Canadian Patents And Development Limited | Adaptive digital delta modulation for voice transmission |
-
1976
- 1976-12-16 DE DE2656975A patent/DE2656975C3/de not_active Expired
-
1977
- 1977-12-06 SE SE7713820A patent/SE418133B/sv unknown
- 1977-12-08 GB GB51189/77A patent/GB1567283A/en not_active Expired
- 1977-12-08 US US05/858,819 patent/US4215311A/en not_active Expired - Lifetime
- 1977-12-12 AT AT885477A patent/AT356711B/de not_active IP Right Cessation
- 1977-12-14 IE IE2545/77A patent/IE45851B1/en unknown
- 1977-12-14 FR FR7737633A patent/FR2374779A1/fr active Granted
- 1977-12-15 CH CH1545877A patent/CH626204A5/de not_active IP Right Cessation
- 1977-12-16 JP JP15229677A patent/JPS5394758A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2374779A1 (fr) | 1978-07-13 |
| IE45851L (en) | 1978-06-16 |
| DE2656975A1 (de) | 1978-06-22 |
| DE2656975C3 (de) | 1979-09-27 |
| US4215311A (en) | 1980-07-29 |
| AT356711B (de) | 1980-05-27 |
| DE2656975B2 (de) | 1979-02-01 |
| FR2374779B1 (fr) | 1983-03-04 |
| JPS5394758A (en) | 1978-08-19 |
| IE45851B1 (en) | 1982-12-15 |
| ATA885477A (de) | 1979-10-15 |
| GB1567283A (en) | 1980-05-14 |
| SE7713820L (sv) | 1978-06-17 |
| CH626204A5 (fr) | 1981-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SE418133B (sv) | Deltamodulationsforfarande | |
| CA1063178A (fr) | Dispositif de modulation et de filtration | |
| US5214687A (en) | Method to determine transmission quality | |
| US4305150A (en) | On-line channel quality monitor for a communication channel | |
| SE520613C2 (sv) | Mottagare med adapterbar bandbredd | |
| US6553518B1 (en) | Severe error detectors, methods and computer program products that use constellation specific error event thresholds to detect severe error events during demodulation of a signal comprising symbols from a plurality of symbol constellations | |
| JP2006527571A (ja) | 帯域分割型光伝送システムおよび光伝送方法 | |
| US6993099B2 (en) | Communications receiver architectures and algorithms permitting hardware adjustments for optimizing performance | |
| AU627667B2 (en) | Extraction of an exact symbol rate as applied to bandwidth compression of modem signals through demodulation and remodulation | |
| JPH0216066B2 (fr) | ||
| JP3578756B2 (ja) | 妨害波検出装置及び妨害波検出方法 | |
| US6523233B1 (en) | Method and apparatus for telephone network impairment detection and compensation in signal transmission between modems | |
| US20040184571A1 (en) | System and method for periodic noise avoidance in data transmission systems | |
| WO1999026365A1 (fr) | Ameliorations relatives a des systemes de transmission pour lignes d'abonnes | |
| DE69710568T2 (de) | Schaltung zur Schätzung der Frequenzverschiebung zwischen der Trägerfrequenz eines digitalen Signals und der Frequenz eines Überlagerungsoszillators und zugehöriger Empfänger | |
| US3764926A (en) | Method and apparatus for demodulating a phase reversal modulated alternating current wave | |
| US6553074B1 (en) | Method and device for combating PCM line impairments | |
| JP5081356B2 (ja) | Ｐｃｍを使用したデジタルモデム及びアナログモデムの起動手順のための方法及び装置 | |
| US6687306B1 (en) | Constellation adjustment based on detected encoding and encoding conversion for modem connections | |
| US20060023690A1 (en) | Method and apparatus for memory efficient carrier allocation and online reconfiguration in communication systems | |
| US6961386B2 (en) | Device and method for increasing the bandwidth in a line-connected multicarrier system | |
| US6111920A (en) | Method and system for timing recovery in a baud-rate sampled data stream | |
| CN1187089A (zh) | 数字调制系统中自适应计算数字信号判定误差的电路和方法 | |
| US6567463B1 (en) | Method and system for detecting analog and ADPCM links in a communication channel | |
| JP2003516038A (ja) | 受信機を直交振幅変調信号に同期させるための方法および構成 |