CA1068822A - Digital to analog converter for a communication system - Google Patents
Digital to analog converter for a communication systemInfo
- Publication number
- CA1068822A CA1068822A CA229,847A CA229847A CA1068822A CA 1068822 A CA1068822 A CA 1068822A CA 229847 A CA229847 A CA 229847A CA 1068822 A CA1068822 A CA 1068822A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- signals
- path
- output
- bit
- 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.)
- Expired
Links
- 238000004891 communication Methods 0.000 title claims abstract description 15
- 230000006854 communication Effects 0.000 title claims abstract description 15
- 230000000295 complement effect Effects 0.000 claims description 50
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 230000004044 response Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 230000000875 corresponding effect Effects 0.000 description 25
- 238000005070 sampling Methods 0.000 description 18
- 230000006870 function Effects 0.000 description 16
- 230000003111 delayed effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000012935 Averaging Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 101150087426 Gnal gene Proteins 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 3
- 238000007792 addition Methods 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 239000013256 coordination polymer Substances 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3004—Digital delta-sigma modulation
- H03M7/3013—Non-linear modulators
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Analogue/Digital Conversion (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US48238074A | 1974-06-24 | 1974-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1068822A true CA1068822A (en) | 1979-12-25 |
Family
ID=23915829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA229,847A Expired CA1068822A (en) | 1974-06-24 | 1975-06-20 | Digital to analog converter for a communication system |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4087754A (enExample) |
| AU (1) | AU8240075A (enExample) |
| CA (1) | CA1068822A (enExample) |
| FR (1) | FR2276741A1 (enExample) |
| GB (1) | GB1506261A (enExample) |
| IT (1) | IT1040695B (enExample) |
| SE (1) | SE405434B (enExample) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4199722A (en) * | 1976-06-30 | 1980-04-22 | Israel Paz | Tri-state delta modulator |
| GB1588219A (en) * | 1977-02-07 | 1981-04-15 | Post Office | Conversion of analogue signals to digital signals |
| NL7801909A (nl) * | 1978-02-21 | 1979-08-23 | Philips Nv | Inrichting voor het decoderen van een met adap- tieve deltamodulatie gecodeerd signaal. |
| DE2906886C2 (de) * | 1979-02-22 | 1982-03-25 | TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Schaltungsanordnung zur Schrittakt-Gewinnung |
| DE3265546D1 (en) * | 1982-04-03 | 1985-09-26 | Itt Ind Gmbh Deutsche | Circuit for a serially operating digital filter |
| US4484178A (en) * | 1982-06-22 | 1984-11-20 | International Business Machines Corporation | Digital-to-analog converter |
| US4520347A (en) * | 1982-11-22 | 1985-05-28 | Motorola, Inc. | Code conversion circuit |
| JPS6354827A (ja) * | 1986-08-26 | 1988-03-09 | Sony Corp | 差分ｐｃｍ信号形成回路 |
| JP2716140B2 (ja) * | 1988-04-04 | 1998-02-18 | 富士通株式会社 | コード変換器及びエンコーダ装置 |
| US4901077A (en) * | 1988-04-18 | 1990-02-13 | Thomson Consumer Electronics, Inc. | Sigma-delta modulator for D-to-A converter |
| JPH07114367B2 (ja) * | 1988-12-27 | 1995-12-06 | 三菱電機株式会社 | 信号処理装置 |
| JPH0438520A (ja) * | 1990-06-04 | 1992-02-07 | Mitsubishi Electric Corp | ２進数データ変換装置 |
| US5757320A (en) * | 1993-04-12 | 1998-05-26 | The Regents Of The University Of California | Short range, ultra-wideband radar with high resolution swept range gate |
| US5561424A (en) * | 1993-04-30 | 1996-10-01 | Lucent Technologies Inc. | Data converter with minimum phase fir filter and method for calculating filter coefficients |
| US5793315A (en) * | 1996-05-31 | 1998-08-11 | Motorola, Inc. | Bit-serial digital expandor |
| US5832490A (en) * | 1996-05-31 | 1998-11-03 | Siemens Medical Systems, Inc. | Lossless data compression technique that also facilitates signal analysis |
| US7054372B2 (en) * | 2000-12-15 | 2006-05-30 | Lucent Technologies Inc. | Digital transmission line tap circuit |
| EP1592136B1 (fr) * | 2004-04-21 | 2012-07-11 | St Microelectronics S.A. | Démodulateur adaptable |
| CN103281057A (zh) * | 2013-04-28 | 2013-09-04 | 康力电梯股份有限公司 | 一种输入信号的滤波方法 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3596267A (en) * | 1969-01-28 | 1971-07-27 | Bell Telephone Labor Inc | Digital code converter for converting a delta modulation code to a different permutation code |
| US3638219A (en) * | 1969-05-23 | 1972-01-25 | Bell Telephone Labor Inc | Pcm coder |
| US3707680A (en) * | 1970-05-20 | 1972-12-26 | Communications Satellite Corp | Digital differential pulse code modulation system |
| US3772678A (en) * | 1970-06-10 | 1973-11-13 | Univ Sherbrooke | Converter from pulse code modulation to delta modulation |
| JPS513468B1 (enExample) * | 1970-10-28 | 1976-02-03 | ||
| FR2115686A5 (enExample) * | 1970-11-30 | 1972-07-07 | Labo Cent Telecommunicat | |
| US3723909A (en) * | 1971-06-21 | 1973-03-27 | J Condon | Differential pulse code modulation system employing periodic modulator step modification |
| US3715722A (en) * | 1971-07-02 | 1973-02-06 | Ibm | Data normalization system |
| US3795900A (en) * | 1971-11-09 | 1974-03-05 | Nasa | Multifunction audio digitizer |
| US3916107A (en) | 1972-10-06 | 1975-10-28 | Bell Telephone Labor Inc | Digital system for reclocking pulse code modulation circuits |
| US3831167A (en) * | 1972-11-08 | 1974-08-20 | Bell Telephone Labor Inc | Digital-to-analog conversion using multiple decoders |
| US3878465A (en) * | 1972-12-15 | 1975-04-15 | Univ Sherbrooke | Instantaneous adaptative delta modulation system |
| US3824590A (en) * | 1973-03-26 | 1974-07-16 | Bell Telephone Labor Inc | Adaptive interpolating video encoder |
| US3906400A (en) * | 1973-12-17 | 1975-09-16 | Adams Russell Co | Transfer function realization with one-bit coefficients |
| US4035724A (en) * | 1974-05-08 | 1977-07-12 | Universite De Sherbrooke | Digital converter from continuous variable slope delta modulation to pulse code modulation |
| US4044306A (en) * | 1974-07-26 | 1977-08-23 | Universite De Snerbrooke | Digital converter from pulse code modulation to continuous variable slope delta modulation |
-
1975
- 1975-06-20 CA CA229,847A patent/CA1068822A/en not_active Expired
- 1975-06-23 GB GB26580/75A patent/GB1506261A/en not_active Expired
- 1975-06-24 SE SE7507257A patent/SE405434B/xx not_active IP Right Cessation
- 1975-06-24 IT IT50191/75A patent/IT1040695B/it active
- 1975-06-24 FR FR7519782A patent/FR2276741A1/fr active Granted
- 1975-06-24 AU AU82400/75A patent/AU8240075A/en not_active Expired
-
1976
- 1976-08-24 US US05/717,458 patent/US4087754A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2276741A1 (fr) | 1976-01-23 |
| US4087754A (en) | 1978-05-02 |
| GB1506261A (en) | 1978-04-05 |
| SE405434B (sv) | 1978-12-04 |
| SE7507257L (sv) | 1975-12-29 |
| AU8240075A (en) | 1977-01-06 |
| FR2276741B3 (enExample) | 1979-02-16 |
| IT1040695B (it) | 1979-12-20 |
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