JPS6222489B2 - - Google Patents
Info
- Publication number
- JPS6222489B2 JPS6222489B2 JP54052194A JP5219479A JPS6222489B2 JP S6222489 B2 JPS6222489 B2 JP S6222489B2 JP 54052194 A JP54052194 A JP 54052194A JP 5219479 A JP5219479 A JP 5219479A JP S6222489 B2 JPS6222489 B2 JP S6222489B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- decoded
- prediction
- sample
- decoded signal
- 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
- 230000005236 sound signal Effects 0.000 description 8
- 239000011295 pitch Substances 0.000 description 6
- 238000005311 autocorrelation function Methods 0.000 description 2
- 238000005314 correlation function Methods 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/04—Differential modulation with several bits, e.g. differential pulse code modulation [DPCM]
- H03M3/042—Differential modulation with several bits, e.g. differential pulse code modulation [DPCM] with adaptable step size, e.g. adaptive differential pulse code modulation [ADPCM]
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5219479A JPS55143830A (en) | 1979-04-26 | 1979-04-26 | Forecasting coding unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5219479A JPS55143830A (en) | 1979-04-26 | 1979-04-26 | Forecasting coding unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55143830A JPS55143830A (en) | 1980-11-10 |
JPS6222489B2 true JPS6222489B2 (zh) | 1987-05-18 |
Family
ID=12907976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5219479A Granted JPS55143830A (en) | 1979-04-26 | 1979-04-26 | Forecasting coding unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55143830A (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60240218A (ja) * | 1984-05-15 | 1985-11-29 | Fujitsu Ltd | 差分pcm符号化方式 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5336163A (en) * | 1976-09-16 | 1978-04-04 | Nec Corp | Time series waveform coding unit |
-
1979
- 1979-04-26 JP JP5219479A patent/JPS55143830A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5336163A (en) * | 1976-09-16 | 1978-04-04 | Nec Corp | Time series waveform coding unit |
Also Published As
Publication number | Publication date |
---|---|
JPS55143830A (en) | 1980-11-10 |
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