DE2413679A1 - Verfahren und vorrichtung zur rauschsignalunterdrueckung bei deltamodulierten uebertragungseinrichtungen - Google Patents
Verfahren und vorrichtung zur rauschsignalunterdrueckung bei deltamodulierten uebertragungseinrichtungenInfo
- Publication number
- DE2413679A1 DE2413679A1 DE2413679A DE2413679A DE2413679A1 DE 2413679 A1 DE2413679 A1 DE 2413679A1 DE 2413679 A DE2413679 A DE 2413679A DE 2413679 A DE2413679 A DE 2413679A DE 2413679 A1 DE2413679 A1 DE 2413679A1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- encoder
- output
- analog input
- detector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 8
- 230000001629 suppression Effects 0.000 title claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000010354 integration Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/02—Delta modulation, i.e. one-bit differential modulation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/02—Delta modulation, i.e. one-bit differential modulation
- H03M3/022—Delta modulation, i.e. one-bit differential modulation with adaptable step size, e.g. adaptive delta modulation [ADM]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/253—Telephone sets using digital voice transmission
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Analogue/Digital Conversion (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPB268773 | 1973-03-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2413679A1 true DE2413679A1 (de) | 1974-10-10 |
Family
ID=3765655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2413679A Pending DE2413679A1 (de) | 1973-03-21 | 1974-03-21 | Verfahren und vorrichtung zur rauschsignalunterdrueckung bei deltamodulierten uebertragungseinrichtungen |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US3995217A (en, 2012) |
| JP (1) | JPS5027418A (en, 2012) |
| BE (1) | BE812634A (en, 2012) |
| BR (1) | BR7402222D0 (en, 2012) |
| CA (1) | CA1064172A (en, 2012) |
| DE (1) | DE2413679A1 (en, 2012) |
| DK (1) | DK146330C (en, 2012) |
| ES (1) | ES424492A1 (en, 2012) |
| FR (1) | FR2222806B1 (en, 2012) |
| GB (1) | GB1427459A (en, 2012) |
| HU (1) | HU170812B (en, 2012) |
| IT (1) | IT1007418B (en, 2012) |
| NL (1) | NL7403838A (en, 2012) |
| SE (1) | SE399159B (en, 2012) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4190801A (en) * | 1978-02-06 | 1980-02-26 | Deltalab Research, Inc. | Digital encoding circuitry |
| CN103344849B (zh) * | 2013-05-31 | 2015-05-27 | 哈尔滨工业大学 | 一种获取随机解调硬件系统的感知矩阵的方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL277910A (en, 2012) * | 1961-05-02 | |||
| US3500441A (en) * | 1967-10-12 | 1970-03-10 | Bell Telephone Labor Inc | Delta modulation with discrete companding |
| US3609551A (en) * | 1968-06-28 | 1971-09-28 | Bell Telephone Labor Inc | Discrete-continuous companding for a digital transmission system |
| US3582784A (en) * | 1968-10-18 | 1971-06-01 | Bell Telephone Labor Inc | Delta modulation system |
| FR2098466A5 (en, 2012) * | 1969-10-16 | 1972-03-10 | Ibm France | |
| FR2082740A5 (en, 2012) * | 1970-03-25 | 1971-12-10 | Trt Telecom Radio Electr | |
| US3729678A (en) * | 1971-07-20 | 1973-04-24 | Philips Corp | Pcm system including a pulse pattern analyzer |
-
1974
- 1974-03-20 JP JP49031068A patent/JPS5027418A/ja active Pending
- 1974-03-21 FR FR7409756A patent/FR2222806B1/fr not_active Expired
- 1974-03-21 DK DK155074A patent/DK146330C/da not_active IP Right Cessation
- 1974-03-21 GB GB1268974A patent/GB1427459A/en not_active Expired
- 1974-03-21 BR BR2222/74A patent/BR7402222D0/pt unknown
- 1974-03-21 SE SE7403804A patent/SE399159B/xx not_active IP Right Cessation
- 1974-03-21 HU HU74EI00000534A patent/HU170812B/hu unknown
- 1974-03-21 US US05/453,635 patent/US3995217A/en not_active Expired - Lifetime
- 1974-03-21 ES ES424492A patent/ES424492A1/es not_active Expired
- 1974-03-21 CA CA195,615A patent/CA1064172A/en not_active Expired
- 1974-03-21 NL NL7403838A patent/NL7403838A/xx unknown
- 1974-03-21 BE BE142278A patent/BE812634A/xx unknown
- 1974-03-21 DE DE2413679A patent/DE2413679A1/de active Pending
- 1974-04-08 IT IT20570/74A patent/IT1007418B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| DK146330B (da) | 1983-09-05 |
| NL7403838A (en, 2012) | 1974-09-24 |
| BR7402222D0 (pt) | 1974-12-03 |
| DK146330C (da) | 1984-03-26 |
| SE399159B (sv) | 1978-01-30 |
| US3995217A (en) | 1976-11-30 |
| BE812634A (fr) | 1974-07-15 |
| ES424492A1 (es) | 1976-06-01 |
| FR2222806B1 (en, 2012) | 1977-10-07 |
| GB1427459A (en) | 1976-03-10 |
| HU170812B (hu) | 1977-09-28 |
| JPS5027418A (en, 2012) | 1975-03-20 |
| FR2222806A1 (en, 2012) | 1974-10-18 |
| IT1007418B (it) | 1976-10-30 |
| CA1064172A (en) | 1979-10-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHJ | Non-payment of the annual fee |