FR2414267B1 - - Google Patents
Info
- Publication number
- FR2414267B1 FR2414267B1 FR7836636A FR7836636A FR2414267B1 FR 2414267 B1 FR2414267 B1 FR 2414267B1 FR 7836636 A FR7836636 A FR 7836636A FR 7836636 A FR7836636 A FR 7836636A FR 2414267 B1 FR2414267 B1 FR 2414267B1
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/004—Reconfigurable analogue/digital or digital/analogue converters
- H03M1/008—Reconfigurable analogue/digital or digital/analogue converters among different conversion characteristics, e.g. between mu-255 and a-laws
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/66—Digital/analogue converters
- H03M1/74—Simultaneous conversion
- H03M1/78—Simultaneous conversion using ladder network
- H03M1/785—Simultaneous conversion using ladder network using resistors, i.e. R-2R ladders
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21578A JPS5493954A (en) | 1978-01-06 | 1978-01-06 | Interpolating pcm decoder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2414267A1 FR2414267A1 (fr) | 1979-08-03 |
| FR2414267B1 true FR2414267B1 (US07655746-20100202-C00011.png) | 1983-01-21 |
Family
ID=11467725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7836636A Granted FR2414267A1 (fr) | 1978-01-06 | 1978-12-28 | Decodeur interpole pcm |
Country Status (6)
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1130461A (en) * | 1978-08-23 | 1982-08-24 | Hiroshi Kosugi | Interpolative digital-to-analog converter for linear pcm code |
| US4311988A (en) * | 1979-04-05 | 1982-01-19 | Motorola Inc. | Programmable A-law and μ-law DAC |
| US4404544A (en) * | 1981-04-09 | 1983-09-13 | Bell Telephone Laboratories, Incorporated | μ-Law/A-law PCM CODEC |
| USRE34660E (en) * | 1983-07-29 | 1994-07-12 | Burr-Brown Corporation | Apparatus and methods for digital-to-analog conversion using modified LSB switching |
| US4750191A (en) * | 1984-11-06 | 1988-06-07 | Nec Corporation | D/A converter capable of producing an analog signal having levels of a preselected number different from 2N and communication network comprising the D/A converter |
| JP2844617B2 (ja) * | 1988-10-31 | 1999-01-06 | 日本電気株式会社 | Ｃアレー型ａ／ｄコンバータ |
| US5101204A (en) * | 1990-03-26 | 1992-03-31 | Burr-Brown Corporation | Interpolation DAC and method |
| JPH05327935A (ja) * | 1992-05-25 | 1993-12-10 | Canon Inc | マルチメディア通信装置 |
| US5883925A (en) * | 1995-11-16 | 1999-03-16 | International Business Machines Corporation | Pulse code modulation compression mechanism |
| US6169503B1 (en) | 1998-09-23 | 2001-01-02 | Sandisk Corporation | Programmable arrays for data conversions between analog and digital |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL272024A (US07655746-20100202-C00011.png) * | 1960-12-15 | |||
| FR2155877B1 (US07655746-20100202-C00011.png) * | 1971-10-13 | 1974-05-31 | Anvar | |
| US3893102A (en) * | 1973-11-02 | 1975-07-01 | Bell Telephone Labor Inc | Digital-to-analog converter using differently decoded bit groups |
| US3987436A (en) * | 1975-05-01 | 1976-10-19 | Bell Telephone Laboratories, Incorporated | Digital-to-analog decoder utilizing time interpolation and reversible accumulation |
| DE2720729A1 (de) * | 1976-05-17 | 1977-12-22 | Hasler Ag | Segment-digital/analog-wandler |
-
1978
- 1978-01-06 JP JP21578A patent/JPS5493954A/ja active Pending
- 1978-12-15 US US05/969,841 patent/US4231022A/en not_active Expired - Lifetime
- 1978-12-28 FR FR7836636A patent/FR2414267A1/fr active Granted
-
1979
- 1979-01-02 GB GB7975A patent/GB2012134B/en not_active Expired
- 1979-01-05 CA CA319,185A patent/CA1129104A/en not_active Expired
- 1979-01-05 DE DE2900383A patent/DE2900383C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US4231022A (en) | 1980-10-28 |
| GB2012134B (en) | 1982-06-30 |
| JPS5493954A (en) | 1979-07-25 |
| GB2012134A (en) | 1979-07-18 |
| DE2900383A1 (de) | 1979-07-12 |
| CA1129104A (en) | 1982-08-03 |
| FR2414267A1 (fr) | 1979-08-03 |
| DE2900383C2 (de) | 1982-09-23 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |