FR2106523A1 - - Google Patents
Info
- Publication number
- FR2106523A1 FR2106523A1 FR7131456A FR7131456A FR2106523A1 FR 2106523 A1 FR2106523 A1 FR 2106523A1 FR 7131456 A FR7131456 A FR 7131456A FR 7131456 A FR7131456 A FR 7131456A FR 2106523 A1 FR2106523 A1 FR 2106523A1
- Authority
- FR
- France
- 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
- H03M7/50—Conversion to or from non-linear codes, e.g. companding
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- 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 |
|---|---|---|---|
| IT2974070 | 1970-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2106523A1 true FR2106523A1 (enExample) | 1972-05-05 |
Family
ID=11228353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7131456A Pending FR2106523A1 (enExample) | 1970-09-15 | 1971-08-31 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3789392A (enExample) |
| DE (1) | DE2131635A1 (enExample) |
| FR (1) | FR2106523A1 (enExample) |
| SE (1) | SE369135B (enExample) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3875344A (en) * | 1973-03-15 | 1975-04-01 | Westinghouse Electric Corp | Digital data compression method and system |
| JPS5422244B2 (enExample) * | 1973-04-09 | 1979-08-06 | ||
| DE2333298C3 (de) * | 1973-06-29 | 1978-05-03 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung zur Umsetzung von Analog-Signalen in PCM-Signale und von PCM-Signalen in Analog-Signale |
| US3945002A (en) * | 1974-10-25 | 1976-03-16 | Bell Telephone Laboratories, Incorporated | Block digital processor for use with nonuniformly encoded digital words |
| US4040049A (en) * | 1975-10-09 | 1977-08-02 | Bell Telephone Laboratories, Incorporated | Tandem block digital processor for use with nonuniformly encoded digital data |
| US4076966A (en) * | 1976-08-02 | 1978-02-28 | Societa Italiana Telecomunicazioni Siemens S.P.A. | Method of and system for handling conference calls in digital telephone exchange |
| JPS542050A (en) * | 1977-06-07 | 1979-01-09 | Nec Corp | Block coding and decoding system |
| NL7801866A (nl) * | 1978-02-20 | 1979-08-22 | Philips Nv | Digitale filterinrichting voor niet-uniform gekwantiseerde pcm. |
| US4163287A (en) * | 1978-04-20 | 1979-07-31 | Northern Telecom Limited | Binary multiplier circuit including coding circuit |
| JPS5723344A (en) * | 1980-07-16 | 1982-02-06 | Pioneer Electronic Corp | Audio signal compressing and encoding methods |
| DE3104528C2 (de) * | 1981-02-09 | 1984-10-11 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur Umwandlung linear codierter PCM-Worte in nichtlinear codierte PCM-Worte und umgekehrt |
| DE3104513C2 (de) * | 1981-02-09 | 1983-03-31 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur Umwandlung linear codierter PCM-Worte in nichtlinear codierte PCM-Worte und umgekehrt nichtlinear codierter PCM-Worte in linear codierte PCM-Worte gemäß einer dem A-Gesetz gehorchenden 13-Segment-Kennlinie |
| US4544916A (en) * | 1982-08-31 | 1985-10-01 | At&T Bell Laboratories | Digital code translator |
| IT1179855B (it) * | 1984-12-10 | 1987-09-16 | Cselt Centro Studi Lab Telecom | Circuito integrato in logica sequenziale per la compressione del segnale pcm |
| DE3509269A1 (de) * | 1985-03-15 | 1986-09-18 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Verfahren zum speichern und/oder uebertragen von analogsignalen in komprimierter digitaler form |
| JP3130834B2 (ja) * | 1997-06-26 | 2001-01-31 | 埼玉日本電気株式会社 | 移動電話機 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3238298A (en) * | 1962-05-07 | 1966-03-01 | Avco Corp | Multiplex communication system with multiline digital buffer |
| US3375498A (en) * | 1964-05-18 | 1968-03-26 | Wyle Laboratories | Calculator apparatus for distinguishing meaningful digits |
| JPS4917050B1 (enExample) * | 1965-12-16 | 1974-04-26 | ||
| US3502806A (en) * | 1966-08-01 | 1970-03-24 | Xerox Corp | Modified run length data reduction system |
| US3584145A (en) * | 1968-12-23 | 1971-06-08 | Bell Telephone Labor Inc | Time division multiplexing of video redundancy reduction data compressors |
-
1971
- 1971-06-25 DE DE19712131635 patent/DE2131635A1/de not_active Ceased
- 1971-08-31 FR FR7131456A patent/FR2106523A1/fr active Pending
- 1971-09-02 US US00177325A patent/US3789392A/en not_active Expired - Lifetime
- 1971-09-14 SE SE11648/71A patent/SE369135B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3789392A (en) | 1974-01-29 |
| DE2131635A1 (de) | 1972-03-16 |
| SE369135B (enExample) | 1974-08-05 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property |