CA1033067A - Non-linear filter for delta modulator output using shift register and table lookup - Google Patents
Non-linear filter for delta modulator output using shift register and table lookupInfo
- Publication number
- CA1033067A CA1033067A CA221,462A CA221462A CA1033067A CA 1033067 A CA1033067 A CA 1033067A CA 221462 A CA221462 A CA 221462A CA 1033067 A CA1033067 A CA 1033067A
- Authority
- CA
- Canada
- Prior art keywords
- shift register
- delta modulator
- table lookup
- linear filter
- modulator output
- 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
Classifications
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US458936A US3916314A (en) | 1974-04-08 | 1974-04-08 | Non-linear filter for delta modulator output using shift register and table lookup |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1033067A true CA1033067A (en) | 1978-06-13 |
Family
ID=23822695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA221,462A Expired CA1033067A (en) | 1974-04-08 | 1975-03-05 | Non-linear filter for delta modulator output using shift register and table lookup |
Country Status (7)
Country | Link |
---|---|
US (1) | US3916314A (it) |
JP (1) | JPS5429336B2 (it) |
CA (1) | CA1033067A (it) |
DE (1) | DE2506627C2 (it) |
FR (1) | FR2266984B1 (it) |
GB (1) | GB1445959A (it) |
IT (1) | IT1031806B (it) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3971987A (en) * | 1975-02-07 | 1976-07-27 | International Business Machines Corporation | Gain method and apparatus for a delta modulator |
US4097753A (en) * | 1976-04-02 | 1978-06-27 | International Business Machines Corporation | Comparator circuit for a C-2C A/D and D/A converter |
NL7801909A (nl) * | 1978-02-21 | 1979-08-23 | Philips Nv | Inrichting voor het decoderen van een met adap- tieve deltamodulatie gecodeerd signaal. |
GB2133238A (en) * | 1982-12-10 | 1984-07-18 | Marconi Co Ltd | Coder/decoder arrangements |
FR2543380B1 (fr) * | 1983-03-24 | 1985-07-26 | Labo Cent Telecommunicat | Procede et dispositif de transcodage d'un signal numerique mic et application au codage analogique-numerique d'un signal analogique a large bande |
US4700362A (en) * | 1983-10-07 | 1987-10-13 | Dolby Laboratories Licensing Corporation | A-D encoder and D-A decoder system |
GB2178577B (en) * | 1985-07-27 | 1989-01-11 | Plessey Co Plc | A signal converter |
JPH0330521A (ja) * | 1989-06-27 | 1991-02-08 | Sony Corp | ディジタル信号デコード装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3393364A (en) * | 1965-10-23 | 1968-07-16 | Signatron | Statistical delta modulation system |
JPS4831139B1 (it) * | 1969-03-11 | 1973-09-27 | ||
US3628148A (en) * | 1969-12-23 | 1971-12-14 | Bell Telephone Labor Inc | Adaptive delta modulation system |
JPS4860570A (it) * | 1971-11-19 | 1973-08-24 | ||
US3763433A (en) * | 1972-01-13 | 1973-10-02 | Univ Iowa State Res Found Inc | System and method for differential pulse code modulation of analog signals |
-
1974
- 1974-04-08 US US458936A patent/US3916314A/en not_active Expired - Lifetime
-
1975
- 1975-01-24 FR FR7502850A patent/FR2266984B1/fr not_active Expired
- 1975-02-10 GB GB550975A patent/GB1445959A/en not_active Expired
- 1975-02-17 DE DE2506627A patent/DE2506627C2/de not_active Expired
- 1975-02-18 IT IT20353/75A patent/IT1031806B/it active
- 1975-03-05 CA CA221,462A patent/CA1033067A/en not_active Expired
- 1975-03-26 JP JP3568875A patent/JPS5429336B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5429336B2 (it) | 1979-09-22 |
FR2266984B1 (it) | 1977-07-15 |
FR2266984A1 (it) | 1975-10-31 |
JPS50137065A (it) | 1975-10-30 |
DE2506627C2 (de) | 1983-04-07 |
IT1031806B (it) | 1979-05-10 |
DE2506627A1 (de) | 1975-10-09 |
US3916314A (en) | 1975-10-28 |
GB1445959A (en) | 1976-08-11 |
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