SE452229B - Kretsanordning for omvandling mellan pcm-signaler och analoga signaler - Google Patents
Kretsanordning for omvandling mellan pcm-signaler och analoga signalerInfo
- Publication number
- SE452229B SE452229B SE8202086A SE8202086A SE452229B SE 452229 B SE452229 B SE 452229B SE 8202086 A SE8202086 A SE 8202086A SE 8202086 A SE8202086 A SE 8202086A SE 452229 B SE452229 B SE 452229B
- Authority
- SE
- Sweden
- Prior art keywords
- capacitor
- reference voltage
- electrode
- bit
- voltage
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title 1
- 239000003990 capacitor Substances 0.000 claims description 81
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003860 storage Methods 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
- H03M1/02—Reversible analogue/digital converters
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/252,600 US4404544A (en) | 1981-04-09 | 1981-04-09 | μ-Law/A-law PCM CODEC |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8202086L SE8202086L (sv) | 1982-10-10 |
| SE452229B true SE452229B (sv) | 1987-11-16 |
Family
ID=22956708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8202086A SE452229B (sv) | 1981-04-09 | 1982-04-01 | Kretsanordning for omvandling mellan pcm-signaler och analoga signaler |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4404544A (fr) |
| JP (1) | JPS57193121A (fr) |
| CA (1) | CA1197015A (fr) |
| DE (1) | DE3212806A1 (fr) |
| FR (1) | FR2503962B1 (fr) |
| GB (1) | GB2096848B (fr) |
| NL (1) | NL8201522A (fr) |
| SE (1) | SE452229B (fr) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4570121A (en) * | 1983-06-16 | 1986-02-11 | At&T Bell Laboratories | Video wave codec |
| US4531113A (en) * | 1983-06-27 | 1985-07-23 | Gte Laboratories Incorporated | Capacitor array |
| CA1250051A (fr) * | 1983-11-18 | 1989-02-14 | Brooktree Corporation | Appareil de conversion de donnees numeriques en donnees analogiques |
| US4641130A (en) * | 1985-03-29 | 1987-02-03 | Rca Corporation | Analog-to-digital converter with scaling of input signal |
| US5021787A (en) * | 1987-03-26 | 1991-06-04 | Texas Instruments Incorporated | Digital-analog converter for conversion of law A- encoded digital signals into analog signals |
| JPH01202925A (ja) * | 1988-02-09 | 1989-08-15 | Oki Electric Ind Co Ltd | アナログ／ディジタル―ディジタル／アナログ共用変換器 |
| US5006854A (en) * | 1989-02-13 | 1991-04-09 | Silicon Systems, Inc. | Method and apparatus for converting A/D nonlinearities to random noise |
| US5016012A (en) * | 1989-10-04 | 1991-05-14 | At&T Bell Laboratories | Technique for compensating switched capacitor circuits having gain-setting resistors |
| EP0564143B1 (fr) * | 1992-03-31 | 2001-11-21 | Texas Instruments Incorporated | Procédé et convertisseur analogique-numérique multimode |
| US5274376A (en) * | 1992-04-01 | 1993-12-28 | Texas Instruments Incorporated | Multi-mode digital to analog converter and method |
| GB9209498D0 (en) * | 1992-05-01 | 1992-06-17 | Univ Waterloo | Multi-bit dac with dynamic element matching |
| DE19513796C1 (de) * | 1995-04-11 | 1996-08-08 | Siemens Ag | Analog-Digital-Umsetzer |
| US5883925A (en) * | 1995-11-16 | 1999-03-16 | International Business Machines Corporation | Pulse code modulation compression mechanism |
| US6268813B1 (en) * | 1997-08-29 | 2001-07-31 | Texas Instruments Incorporated | Self-test for charge redistribution analog-to-digital converter |
| US6215428B1 (en) * | 1997-10-14 | 2001-04-10 | Photobit Corporation | Differential non-linearity correction scheme |
| JP2001517415A (ja) * | 1998-01-20 | 2001-10-02 | マイクロチップ テクノロジー インコーポレイテッド | 連続近似レジスタ（ｓａｒ）アナログ／デジタル（ａ／ｄ）コンバータの低電圧動作のためのドライバ回路および方法 |
| US6169503B1 (en) | 1998-09-23 | 2001-01-02 | Sandisk Corporation | Programmable arrays for data conversions between analog and digital |
| JP3275966B2 (ja) * | 1999-12-02 | 2002-04-22 | 日本電気株式会社 | ディジタル・アナログ変換器 |
| US7388247B1 (en) | 2003-05-28 | 2008-06-17 | The United States Of America As Represented By The Secretary Of The Navy | High precision microelectromechanical capacitor with programmable voltage source |
| GB2440770A (en) | 2006-08-11 | 2008-02-13 | Sharp Kk | Switched capacitor DAC |
| GB2440769A (en) * | 2006-08-11 | 2008-02-13 | Sharp Kk | A switched capacitor DAC |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3594782A (en) * | 1969-03-20 | 1971-07-20 | Bell Telephone Labor Inc | Digital-to-analog conversion circuits |
| US3626408A (en) * | 1969-12-31 | 1971-12-07 | Bell Telephone Labor Inc | Linear charge redistribution pcm coder and decoder |
| US3651518A (en) * | 1970-03-11 | 1972-03-21 | Bell Telephone Labor Inc | Redistribution circuit for analog to digital and digital to analog conversion and multilevel pre-equalizers |
| US3653030A (en) * | 1970-04-03 | 1972-03-28 | Bell Telephone Labor Inc | Switched divider pcm coders and decoders |
| US3653035A (en) * | 1970-04-24 | 1972-03-28 | Bell Telephone Labor Inc | Chord law companding pulse code modulation coders and decoders |
| US3745555A (en) * | 1971-06-01 | 1973-07-10 | Bell Telephone Labor Inc | Nonlinear charge redistribution pcm coder |
| NL7606930A (nl) * | 1976-06-25 | 1977-12-28 | Bell Telephone Mfg | Signaalomzetter welke gebruik maakt van gewogen capaciteiten. |
| JPS5493954A (en) * | 1978-01-06 | 1979-07-25 | Hitachi Ltd | Interpolating pcm decoder |
-
1981
- 1981-04-09 US US06/252,600 patent/US4404544A/en not_active Expired - Lifetime
-
1982
- 1982-04-01 SE SE8202086A patent/SE452229B/sv not_active IP Right Cessation
- 1982-04-05 CA CA000400488A patent/CA1197015A/fr not_active Expired
- 1982-04-05 GB GB8210050A patent/GB2096848B/en not_active Expired
- 1982-04-06 DE DE19823212806 patent/DE3212806A1/de not_active Withdrawn
- 1982-04-07 FR FR8206060A patent/FR2503962B1/fr not_active Expired
- 1982-04-08 NL NL8201522A patent/NL8201522A/nl not_active Application Discontinuation
- 1982-04-09 JP JP57058394A patent/JPS57193121A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| SE8202086L (sv) | 1982-10-10 |
| US4404544A (en) | 1983-09-13 |
| NL8201522A (nl) | 1982-11-01 |
| FR2503962B1 (fr) | 1986-04-04 |
| JPS57193121A (en) | 1982-11-27 |
| CA1197015A (fr) | 1985-11-19 |
| GB2096848A (en) | 1982-10-20 |
| GB2096848B (en) | 1985-05-30 |
| DE3212806A1 (de) | 1982-11-25 |
| FR2503962A1 (fr) | 1982-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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