SE439713B - Omvandlarkrets vid ett digitalt telefonomkopplarnet for omvandling av pulsamplitudmodulerade signaler till pulskodmodulerade signaler och vice versa - Google Patents
Omvandlarkrets vid ett digitalt telefonomkopplarnet for omvandling av pulsamplitudmodulerade signaler till pulskodmodulerade signaler och vice versaInfo
- Publication number
- SE439713B SE439713B SE8001498A SE8001498A SE439713B SE 439713 B SE439713 B SE 439713B SE 8001498 A SE8001498 A SE 8001498A SE 8001498 A SE8001498 A SE 8001498A SE 439713 B SE439713 B SE 439713B
- Authority
- SE
- Sweden
- Prior art keywords
- digital
- converter
- code
- analog
- modulated signals
- Prior art date
Links
- 238000006243 chemical reaction Methods 0.000 title claims description 12
- 125000004122 cyclic group Chemical group 0.000 claims description 11
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 4
- 230000006870 function Effects 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 101100298295 Drosophila melanogaster flfl gene Proteins 0.000 description 1
- 102100024282 Dynein axonemal assembly factor 11 Human genes 0.000 description 1
- 101000831210 Homo sapiens Dynein axonemal assembly factor 11 Proteins 0.000 description 1
- 241001605695 Pareronia Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters
- H03M1/129—Means for adapting the input signal to the range the converter can handle, e.g. limiting, pre-scaling ; Out-of-range indication
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K11/00—Transforming types of modulations, e.g. position-modulated pulses into duration-modulated pulses
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/66—Digital/analogue converters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/34—Analogue value compared with reference values
- H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
- H03M1/46—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Analogue/Digital Conversion (AREA)
- Interface Circuits In Exchanges (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Time-Division Multiplex Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000322373A CA1152650A (en) | 1979-02-27 | 1979-02-27 | Pcm and pam conversion circuit including signal level variation on the pcm portion of the circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8001498L SE8001498L (sv) | 1980-08-28 |
| SE439713B true SE439713B (sv) | 1985-06-24 |
Family
ID=4113638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8001498A SE439713B (sv) | 1979-02-27 | 1980-02-26 | Omvandlarkrets vid ett digitalt telefonomkopplarnet for omvandling av pulsamplitudmodulerade signaler till pulskodmodulerade signaler och vice versa |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS55120295A (enrdf_load_stackoverflow) |
| AT (1) | AT390703B (enrdf_load_stackoverflow) |
| CA (1) | CA1152650A (enrdf_load_stackoverflow) |
| DE (1) | DE3007211A1 (enrdf_load_stackoverflow) |
| ES (1) | ES488946A0 (enrdf_load_stackoverflow) |
| FR (1) | FR2450533A1 (enrdf_load_stackoverflow) |
| GB (1) | GB2050112B (enrdf_load_stackoverflow) |
| SE (1) | SE439713B (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4396938A (en) * | 1981-07-23 | 1983-08-02 | Rca Corporation | Controlled ram signal processor |
| JPH0396189A (ja) * | 1989-09-08 | 1991-04-22 | Nitsuko Corp | デジタル交換機 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2333299C3 (de) * | 1973-06-29 | 1979-04-26 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung zur Umsetzung von Analog-Signalen in PCM-Signale und von PCM-Signalen in Analog-Signale |
| IT998230B (it) * | 1973-07-12 | 1976-01-20 | Sits Soc It Telecom Siemens | Codecodificatore per sistemi telefonici a divisione di tempo |
| US3877028A (en) * | 1974-02-22 | 1975-04-08 | Gte Automatic Electric Lab Inc | Pcm encoder-decoder apparatus |
| IT1021020B (it) * | 1974-05-27 | 1978-01-30 | Telettra Lab Telefon | Sistema e dispositivi di comunica zione con segnali codificati p.c.m. a ridondanza ridotta |
| JPS53147408A (en) * | 1977-05-27 | 1978-12-22 | Fujitsu Ltd | Gain control system with variable time slot |
| JPS549511A (en) * | 1977-06-24 | 1979-01-24 | Fujitsu Ltd | Digital gain control system using read only memory |
-
1979
- 1979-02-27 CA CA000322373A patent/CA1152650A/en not_active Expired
-
1980
- 1980-02-13 GB GB8004799A patent/GB2050112B/en not_active Expired
- 1980-02-26 SE SE8001498A patent/SE439713B/sv not_active IP Right Cessation
- 1980-02-26 FR FR8004189A patent/FR2450533A1/fr active Granted
- 1980-02-26 ES ES488946A patent/ES488946A0/es active Granted
- 1980-02-26 DE DE19803007211 patent/DE3007211A1/de not_active Withdrawn
- 1980-02-27 AT AT108180A patent/AT390703B/de not_active IP Right Cessation
- 1980-02-27 JP JP2288380A patent/JPS55120295A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2450533A1 (fr) | 1980-09-26 |
| DE3007211A1 (de) | 1980-09-04 |
| ATA108180A (de) | 1989-11-15 |
| GB2050112A (en) | 1980-12-31 |
| ES8104683A1 (es) | 1981-04-16 |
| SE8001498L (sv) | 1980-08-28 |
| FR2450533B1 (enrdf_load_stackoverflow) | 1984-04-06 |
| GB2050112B (en) | 1983-05-25 |
| AT390703B (de) | 1990-06-25 |
| ES488946A0 (es) | 1981-04-16 |
| JPS55120295A (en) | 1980-09-16 |
| CA1152650A (en) | 1983-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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