SE400868B - Digital kopplingsanordning for omvandling av en komprimerad deltamodulerad signal till en pulskodmodulerad signal - Google Patents
Digital kopplingsanordning for omvandling av en komprimerad deltamodulerad signal till en pulskodmodulerad signalInfo
- Publication number
- SE400868B SE400868B SE7500483A SE7500483A SE400868B SE 400868 B SE400868 B SE 400868B SE 7500483 A SE7500483 A SE 7500483A SE 7500483 A SE7500483 A SE 7500483A SE 400868 B SE400868 B SE 400868B
- Authority
- SE
- Sweden
- Prior art keywords
- modulated signal
- converting
- connection device
- pulse code
- compressed part
- Prior art date
Links
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
- H03M7/3048—Conversion to or from one-bit differential modulation only, e.g. delta modulation [DM]
- H03M7/3051—Conversion to or from one-bit differential modulation only, e.g. delta modulation [DM] adaptive, e.g. adaptive delta modulation [ADM]
Landscapes
- 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)
- Signal Processing For Digital Recording And Reproducing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7400764A NL7400764A (nl) | 1974-01-21 | 1974-01-21 | Digitale inrichting voor het omzetten van ge- comprimeerde delta gemoduleerde signalen in pcm-signalen. |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7500483L SE7500483L (sv) | 1975-07-22 |
SE400868B true SE400868B (sv) | 1978-04-10 |
Family
ID=19820591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7500483A SE400868B (sv) | 1974-01-21 | 1975-01-17 | Digital kopplingsanordning for omvandling av en komprimerad deltamodulerad signal till en pulskodmodulerad signal |
Country Status (9)
Country | Link |
---|---|
US (1) | US4002981A (sv) |
JP (1) | JPS5429233B2 (sv) |
BE (1) | BE824571A (sv) |
CA (1) | CA1022681A (sv) |
DE (1) | DE2501531C3 (sv) |
FR (1) | FR2258747B1 (sv) |
GB (1) | GB1480434A (sv) |
NL (1) | NL7400764A (sv) |
SE (1) | SE400868B (sv) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7506141A (nl) * | 1975-05-26 | 1976-11-30 | Philips Nv | Digitaal filter. |
GB1588219A (en) * | 1977-02-07 | 1981-04-15 | Post Office | Conversion of analogue signals to digital signals |
NL7708150A (nl) * | 1977-07-22 | 1979-01-24 | Philips Nv | Integrerende kode-omzetter. |
FR2399763A1 (fr) * | 1977-08-03 | 1979-03-02 | Trt Telecom Radio Electr | Dispositif numerique pour diviser la frequence d'echantillonnage dans un signal code au moyen de la modulation delta |
NL7800406A (nl) * | 1978-01-13 | 1979-07-17 | Philips Nv | Inrichting voor het filteren van gecomprimeerde pulscode gemoduleerde signalen. |
NL7801909A (nl) * | 1978-02-21 | 1979-08-23 | Philips Nv | Inrichting voor het decoderen van een met adap- tieve deltamodulatie gecodeerd signaal. |
US4281318A (en) * | 1980-05-30 | 1981-07-28 | Bell Telephone Laboratories, Incorporated | Digital-to-digital code converter |
JPS58219841A (ja) * | 1982-06-15 | 1983-12-21 | Kokusai Denshin Denwa Co Ltd <Kdd> | 標本化周波数の高速変換回路 |
GB2133238A (en) * | 1982-12-10 | 1984-07-18 | Marconi Co Ltd | Coder/decoder arrangements |
CA1271995A (en) * | 1984-07-05 | 1990-07-24 | Nec Corporation | Method and apparatus for converting an analog signal to a digital signal using an oversampling technique |
US4755794A (en) * | 1987-07-23 | 1988-07-05 | American Telephone And Telegraph Company, At&T Bell Laboratories | Digital-to-digital code converter |
US4905002A (en) * | 1988-03-09 | 1990-02-27 | Eastman Kodak Company | Delta modulation encoder/decoder method and system |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3526855A (en) * | 1968-03-18 | 1970-09-01 | Bell Telephone Labor Inc | Pulse code modulation and differential pulse code modulation encoders |
NL159548B (nl) * | 1968-03-21 | 1979-02-15 | Philips Nv | Overdrachtsstelsel voor signaaloverdracht door pulscodemodulatie, alsmede zender en ontvanger voor toepassing in een dergelijk stelsel. |
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 |
US3707712A (en) * | 1970-06-10 | 1972-12-26 | Univ Sherbrooke | Converter from delta modulation to pulse code modulation |
US3703688A (en) * | 1971-04-07 | 1972-11-21 | Bell Telephone Labor Inc | Digital adaptive-to-linear delta modulated signal converter |
US3691554A (en) * | 1971-06-18 | 1972-09-12 | Peter Marschall | Code converters |
US3772682A (en) * | 1972-04-19 | 1973-11-13 | Bell Telephone Labor Inc | Digital conversion from one pcm format to another |
US3766546A (en) * | 1972-04-21 | 1973-10-16 | Bell Telephone Labor Inc | Converter for segment companded pcm codes |
-
1974
- 1974-01-21 NL NL7400764A patent/NL7400764A/xx not_active Application Discontinuation
- 1974-12-30 US US05/537,316 patent/US4002981A/en not_active Expired - Lifetime
-
1975
- 1975-01-15 CA CA218,143A patent/CA1022681A/en not_active Expired
- 1975-01-16 DE DE2501531A patent/DE2501531C3/de not_active Expired
- 1975-01-17 SE SE7500483A patent/SE400868B/sv not_active IP Right Cessation
- 1975-01-17 GB GB2112/75A patent/GB1480434A/en not_active Expired
- 1975-01-18 JP JP745175A patent/JPS5429233B2/ja not_active Expired
- 1975-01-20 BE BE152530A patent/BE824571A/xx not_active IP Right Cessation
- 1975-01-21 FR FR7501789A patent/FR2258747B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL7400764A (nl) | 1975-07-23 |
CA1022681A (en) | 1977-12-13 |
JPS50105060A (sv) | 1975-08-19 |
DE2501531B2 (de) | 1980-12-11 |
GB1480434A (en) | 1977-07-20 |
BE824571A (fr) | 1975-07-22 |
SE7500483L (sv) | 1975-07-22 |
FR2258747B1 (sv) | 1978-07-21 |
FR2258747A1 (sv) | 1975-08-18 |
JPS5429233B2 (sv) | 1979-09-21 |
DE2501531C3 (de) | 1981-09-17 |
DE2501531A1 (de) | 1975-07-24 |
US4002981A (en) | 1977-01-11 |
AU7737675A (en) | 1976-07-22 |
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Legal Events
Date | Code | Title | Description |
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NUG | Patent has lapsed |
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