JPS6124850B2 - - Google Patents
Info
- Publication number
- JPS6124850B2 JPS6124850B2 JP10980080A JP10980080A JPS6124850B2 JP S6124850 B2 JPS6124850 B2 JP S6124850B2 JP 10980080 A JP10980080 A JP 10980080A JP 10980080 A JP10980080 A JP 10980080A JP S6124850 B2 JPS6124850 B2 JP S6124850B2
- Authority
- JP
- Japan
- Prior art keywords
- register
- output
- code
- adpcm
- bit
- 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
- 238000013139 quantization Methods 0.000 claims description 16
- 238000004364 calculation method Methods 0.000 description 13
- 238000007792 addition Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
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
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3044—Conversion to or from differential modulation with several bits only, i.e. the difference between successive samples being coded by more than one bit, e.g. differential pulse code modulation [DPCM]
- H03M7/3046—Conversion to or from differential modulation with several bits only, i.e. the difference between successive samples being coded by more than one bit, e.g. differential pulse code modulation [DPCM] adaptive, e.g. adaptive differential pulse code modulation [ADPCM]
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (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 |
|---|---|---|---|
| JP10980080A JPS5735434A (en) | 1980-08-12 | 1980-08-12 | Adpcm reproducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10980080A JPS5735434A (en) | 1980-08-12 | 1980-08-12 | Adpcm reproducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5735434A JPS5735434A (en) | 1982-02-26 |
| JPS6124850B2 true JPS6124850B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1986-06-12 |
Family
ID=14519531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10980080A Granted JPS5735434A (en) | 1980-08-12 | 1980-08-12 | Adpcm reproducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5735434A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61206957A (ja) * | 1985-03-08 | 1986-09-13 | Tokyo Electric Co Ltd | 磁気デイスク駆動装置 |
-
1980
- 1980-08-12 JP JP10980080A patent/JPS5735434A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61206957A (ja) * | 1985-03-08 | 1986-09-13 | Tokyo Electric Co Ltd | 磁気デイスク駆動装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5735434A (en) | 1982-02-26 |