JPH04421B2 - - Google Patents
Info
- Publication number
- JPH04421B2 JPH04421B2 JP58064786A JP6478683A JPH04421B2 JP H04421 B2 JPH04421 B2 JP H04421B2 JP 58064786 A JP58064786 A JP 58064786A JP 6478683 A JP6478683 A JP 6478683A JP H04421 B2 JPH04421 B2 JP H04421B2
- Authority
- JP
- Japan
- Prior art keywords
- memory
- update
- contents
- address
- cyclic shift
- 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 - Lifetime
Links
- 125000004122 cyclic group Chemical group 0.000 claims description 22
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
- H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
- H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
Landscapes
- Physics & Mathematics (AREA)
- Probability & Statistics with Applications (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Detection And Correction Of Errors (AREA)
- Error Detection And Correction (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58064786A JPS59190751A (ja) | 1983-04-13 | 1983-04-13 | ビタ−ビ復号器の記憶器更新回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58064786A JPS59190751A (ja) | 1983-04-13 | 1983-04-13 | ビタ−ビ復号器の記憶器更新回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59190751A JPS59190751A (ja) | 1984-10-29 |
JPH04421B2 true JPH04421B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-01-07 |
Family
ID=13268255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58064786A Granted JPS59190751A (ja) | 1983-04-13 | 1983-04-13 | ビタ−ビ復号器の記憶器更新回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59190751A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60183824A (ja) * | 1984-03-02 | 1985-09-19 | Toshiba Corp | ビタビ復号回路 |
JPS6162235A (ja) * | 1984-09-04 | 1986-03-31 | Toshiba Corp | ビタビ復号法 |
JPS62114334A (ja) * | 1985-11-14 | 1987-05-26 | Fujitsu Ltd | シ−ケンシヤル復号器 |
US5291457A (en) * | 1992-02-20 | 1994-03-01 | Vlsi Technology, Inc. | Sequentially accessible non-volatile circuit for storing data |
-
1983
- 1983-04-13 JP JP58064786A patent/JPS59190751A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS59190751A (ja) | 1984-10-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5715470A (en) | Arithmetic apparatus for carrying out viterbi decoding at a high speed | |
KR100426712B1 (ko) | 비터비 복호기 | |
EP0234558A2 (en) | Path trace viterbi decoder | |
KR100187964B1 (ko) | 비터비 복호방법 및 비터비 복호장치 | |
US5559837A (en) | Efficient utilization of present state/next state registers | |
KR940004982A (ko) | 비터비 복호기의 경로 기억 장치 | |
US5619514A (en) | In-place present state/next state registers | |
US6442729B1 (en) | Convolution code generator and digital signal processor which includes the same | |
US5878060A (en) | Viterbi decoding apparatus and viterbe decoding method | |
JPH04421B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
JP2904271B2 (ja) | ビタビ復号器用パスメモリユニットおよび復号方法 | |
US6125153A (en) | Data processor and data processing method | |
KR20010054996A (ko) | 비터비 디코더의 어드레스 발생기 | |
KR20040031323A (ko) | 비터비 복호기의 경로 메트릭 저장 장치 및 방법 | |
JPH0722969A (ja) | 演算装置 | |
KR100277467B1 (ko) | 비터비 디코더 | |
JPH0361375B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
JPH0361377B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
JP2000196468A (ja) | ビタビ復号化装置およびビタビ復号化方法 | |
KR100223925B1 (ko) | 비터비 디코딩장치 | |
JP2571384B2 (ja) | シ−ケンシャル復号器 | |
JPH0746145A (ja) | 演算装置 | |
JPH04170227A (ja) | ビタビ復号器 | |
JPH0537402A (ja) | ビタビ復号器 | |
JPH0361376B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |