JPS5042774A - - Google Patents
Info
- Publication number
- JPS5042774A JPS5042774A JP5742174A JP5742174A JPS5042774A JP S5042774 A JPS5042774 A JP S5042774A JP 5742174 A JP5742174 A JP 5742174A JP 5742174 A JP5742174 A JP 5742174A JP S5042774 A JPS5042774 A JP S5042774A
- Authority
- JP
- Japan
- 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.)
- Pending
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]
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/06—Non-recursive filters
- H03H17/0614—Non-recursive filters using Delta-modulation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/06—Non-recursive filters
- H03H17/0621—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
- H03H17/0635—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies
- H03H17/065—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer
- H03H17/0657—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer where the output-delivery frequency is higher than the input sampling frequency, i.e. interpolation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7307237A NL7307237A (Direct) | 1973-05-24 | 1973-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5042774A true JPS5042774A (Direct) | 1975-04-18 |
Family
ID=19818935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5742174A Pending JPS5042774A (Direct) | 1973-05-24 | 1974-05-23 |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5042774A (Direct) |
| BE (1) | BE815408A (Direct) |
| CA (1) | CA1023864A (Direct) |
| DK (1) | DK135019B (Direct) |
| FR (1) | FR2231158B1 (Direct) |
| GB (1) | GB1455733A (Direct) |
| NL (1) | NL7307237A (Direct) |
| SE (1) | SE388520B (Direct) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL176211C (nl) * | 1974-09-16 | 1985-03-01 | Philips Nv | Interpolerend digitaal filter. |
| FR2326823A1 (fr) * | 1975-10-02 | 1977-04-29 | Tech Electro Fse | Procede et dispositif pour le traitement de trames de reception dans une chaine de parole d'une unite de raccordement d'abonnes dans un central de telecommunications |
| GB2133238A (en) * | 1982-12-10 | 1984-07-18 | Marconi Co Ltd | Coder/decoder arrangements |
| JPS6354827A (ja) * | 1986-08-26 | 1988-03-09 | Sony Corp | 差分ｐｃｍ信号形成回路 |
-
1973
- 1973-05-24 NL NL7307237A patent/NL7307237A/xx not_active Application Discontinuation
-
1974
- 1974-05-21 CA CA200,375A patent/CA1023864A/en not_active Expired
- 1974-05-21 SE SE7406700A patent/SE388520B/xx unknown
- 1974-05-21 DK DK277674A patent/DK135019B/da unknown
- 1974-05-21 GB GB2258474A patent/GB1455733A/en not_active Expired
- 1974-05-22 BE BE144635A patent/BE815408A/xx unknown
- 1974-05-22 FR FR7417842A patent/FR2231158B1/fr not_active Expired
- 1974-05-23 JP JP5742174A patent/JPS5042774A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DK135019C (Direct) | 1977-07-11 |
| GB1455733A (en) | 1976-11-17 |
| DK135019B (da) | 1977-02-21 |
| DE2422926B2 (de) | 1977-03-17 |
| DK277674A (Direct) | 1975-01-13 |
| BE815408A (fr) | 1974-11-22 |
| FR2231158B1 (Direct) | 1979-03-09 |
| CA1023864A (en) | 1978-01-03 |
| DE2422926A1 (de) | 1974-12-12 |
| NL7307237A (Direct) | 1974-11-26 |
| SE388520B (sv) | 1976-10-04 |
| AU6912874A (en) | 1975-11-20 |
| FR2231158A1 (Direct) | 1974-12-20 |