JPS5970329A - 時不変予測組合せ型ａｄｐｃｍ符号化復号化方法 - Google Patents
時不変予測組合せ型ａｄｐｃｍ符号化復号化方法Info
- Publication number
- JPS5970329A JPS5970329A JP18112782A JP18112782A JPS5970329A JP S5970329 A JPS5970329 A JP S5970329A JP 18112782 A JP18112782 A JP 18112782A JP 18112782 A JP18112782 A JP 18112782A JP S5970329 A JPS5970329 A JP S5970329A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- time
- invariant
- prediction
- input
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 121
- 230000003044 adaptive effect Effects 0.000 claims abstract description 50
- 238000013139 quantization Methods 0.000 claims description 98
- 238000005070 sampling Methods 0.000 claims description 18
- 238000009499 grossing Methods 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 19
- 230000006870 function Effects 0.000 description 15
- 238000012546 transfer Methods 0.000 description 13
- 230000005236 sound signal Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000003079 width control Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 101100230509 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) hat-1 gene Proteins 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000050 ionisation spectroscopy Methods 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009466 transformation Effects 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 |
|---|---|---|---|
| JP18112782A JPS5970329A (ja) | 1982-10-15 | 1982-10-15 | 時不変予測組合せ型ａｄｐｃｍ符号化復号化方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18112782A JPS5970329A (ja) | 1982-10-15 | 1982-10-15 | 時不変予測組合せ型ａｄｐｃｍ符号化復号化方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5970329A true JPS5970329A (ja) | 1984-04-20 |
| JPS64857B2 JPS64857B2 (OSRAM) | 1989-01-09 |
Family
ID=16095334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18112782A Granted JPS5970329A (ja) | 1982-10-15 | 1982-10-15 | 時不変予測組合せ型ａｄｐｃｍ符号化復号化方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5970329A (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63301633A (ja) * | 1987-06-01 | 1988-12-08 | Hitachi Ltd | Ａｄｐｃｍ符号化・復号化方法 |
-
1982
- 1982-10-15 JP JP18112782A patent/JPS5970329A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63301633A (ja) * | 1987-06-01 | 1988-12-08 | Hitachi Ltd | Ａｄｐｃｍ符号化・復号化方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS64857B2 (OSRAM) | 1989-01-09 |
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