CA1114460A - Digital filter arrangement for non-uniformly quantized pcm - Google Patents
Digital filter arrangement for non-uniformly quantized pcmInfo
- Publication number
- CA1114460A CA1114460A CA321,699A CA321699A CA1114460A CA 1114460 A CA1114460 A CA 1114460A CA 321699 A CA321699 A CA 321699A CA 1114460 A CA1114460 A CA 1114460A
- Authority
- CA
- Canada
- Prior art keywords
- storage medium
- output
- code
- storage
- address
- 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
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/06—Non-recursive filters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
- H04B14/046—Systems or methods for reducing noise or bandwidth
- H04B14/048—Non linear compression or expansion
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Complex Calculations (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7801866A NL7801866A (nl) | 1978-02-20 | 1978-02-20 | Digitale filterinrichting voor niet-uniform gekwantiseerde pcm. |
| NL7801866 | 1978-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1114460A true CA1114460A (en) | 1981-12-15 |
Family
ID=19830356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA321,699A Expired CA1114460A (en) | 1978-02-20 | 1979-02-15 | Digital filter arrangement for non-uniformly quantized pcm |
Country Status (10)
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3028734A1 (de) * | 1980-07-29 | 1982-03-04 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur umwandlung von positiven linear codierten digitalen signalen sowie deren zweierkomplement in nichtlinear codierte digitale signale gemaess einer der a-gesetz gehorchenden mehrfachsegmentkennlinie |
| US4343759A (en) * | 1980-10-10 | 1982-08-10 | Bell Telephone Laboratories, Incorporated | Equalizer section |
| JPS5846751A (ja) * | 1981-09-11 | 1983-03-18 | Sony Corp | Ｚ値符号変調方法及び記録媒体 |
| DE3144456A1 (de) * | 1981-11-09 | 1983-05-19 | Siemens AG, 1000 Berlin und 8000 München | Transversalfilter zur umformung digitaler signale |
| JPS58144970A (ja) * | 1982-02-23 | 1983-08-29 | Toshiba Corp | 演算装置 |
| JPS59220879A (ja) * | 1983-05-30 | 1984-12-12 | Sony Corp | デイジタル信号処理装置 |
| US4691293A (en) * | 1984-12-28 | 1987-09-01 | Ford Aerospace & Communications Corporation | High frequency, wide range FIR filter |
| EP0577902B1 (en) * | 1992-07-10 | 1997-12-10 | International Business Machines Corporation | Decimation filter for a sigma-delta converter and A/D converter using the same |
| DE4315947C2 (de) * | 1993-05-12 | 1995-11-16 | Siemens Ag | Anordnung zur Signalübertragung zwischen einer Audioeinrichtung und einer Fernsprecheinrichtung |
| DE19512578C2 (de) * | 1995-04-03 | 1997-04-17 | Grosenhainer Textilmaschbau | Verfahren zum Trennen von Vorgarnlunten vor dem Abziehen von Spulen an Vorspinnmaschinen |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2131635A1 (de) * | 1970-09-15 | 1972-03-16 | It Telecommunicazioni Siemens | Digitale Komprimierschaltung |
| BE792988A (fr) * | 1971-12-22 | 1973-04-16 | Western Electric Co | Dispositif numerique |
| US3766546A (en) * | 1972-04-21 | 1973-10-16 | Bell Telephone Labor Inc | Converter for segment companded pcm codes |
| NL176124C (nl) * | 1974-06-17 | 1985-02-18 | Philips Nv | Digitaal filter met vereenvoudigde vermenigvuldiginrichting. |
| NL7506141A (nl) * | 1975-05-26 | 1976-11-30 | Philips Nv | Digitaal filter. |
| NL178469C (nl) * | 1976-07-06 | 1986-03-17 | Philips Nv | Niet-recursief discreet filter. |
-
1978
- 1978-02-20 NL NL7801866A patent/NL7801866A/xx not_active Application Discontinuation
-
1979
- 1979-02-02 US US06/008,805 patent/US4231101A/en not_active Expired - Lifetime
- 1979-02-15 CA CA321,699A patent/CA1114460A/en not_active Expired
- 1979-02-16 SE SE7901379A patent/SE429080B/sv not_active IP Right Cessation
- 1979-02-16 AU AU44331/79A patent/AU4433179A/en not_active Abandoned
- 1979-02-16 GB GB7905529A patent/GB2014817B/en not_active Expired
- 1979-02-17 JP JP1677379A patent/JPS54122952A/ja active Granted
- 1979-02-17 DE DE2906156A patent/DE2906156C2/de not_active Expired
- 1979-02-19 FR FR7904156A patent/FR2417896A1/fr active Granted
- 1979-02-19 BE BE0/193557A patent/BE874282A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2417896B1 (US07652168-20100126-C00068.png) | 1984-06-29 |
| JPS6346608B2 (US07652168-20100126-C00068.png) | 1988-09-16 |
| DE2906156C2 (de) | 1987-01-02 |
| JPS54122952A (en) | 1979-09-22 |
| DE2906156A1 (de) | 1979-08-23 |
| SE7901379L (sv) | 1979-08-21 |
| SE429080B (sv) | 1983-08-08 |
| AU4433179A (en) | 1979-08-30 |
| BE874282A (fr) | 1979-08-20 |
| US4231101A (en) | 1980-10-28 |
| FR2417896A1 (fr) | 1979-09-14 |
| GB2014817A (en) | 1979-08-30 |
| NL7801866A (nl) | 1979-08-22 |
| GB2014817B (en) | 1982-03-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |