TW445733B - System and method for spectrally shaping transmitted data signals - Google Patents
System and method for spectrally shaping transmitted data signals Download PDFInfo
- Publication number
- TW445733B TW445733B TW087105268A TW87105268A TW445733B TW 445733 B TW445733 B TW 445733B TW 087105268 A TW087105268 A TW 087105268A TW 87105268 A TW87105268 A TW 87105268A TW 445733 B TW445733 B TW 445733B
- Authority
- TW
- Taiwan
- Prior art keywords
- symbol
- bit
- bits
- encoded
- information bits
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 33
- 238000007493 shaping process Methods 0.000 title description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 238000013507 mapping Methods 0.000 claims abstract description 17
- 230000003595 spectral effect Effects 0.000 claims abstract description 15
- 239000003550 marker Substances 0.000 claims description 50
- 239000011159 matrix material Substances 0.000 claims description 28
- 230000002079 cooperative effect Effects 0.000 claims description 17
- 230000000875 corresponding effect Effects 0.000 claims description 15
- 238000004364 calculation method Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 235000015170 shellfish Nutrition 0.000 claims description 5
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 claims 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 239000004332 silver Substances 0.000 claims 1
- 238000001228 spectrum Methods 0.000 description 24
- 230000004044 response Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 241000282376 Panthera tigris Species 0.000 description 1
- 241000269821 Scombridae Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
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- 230000007717 exclusion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 235000020640 mackerel Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
- H04L25/4927—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes using levels matched to the quantisation levels of the channel
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Probability & Statistics with Applications (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Error Detection And Correction (AREA)
- Dc Digital Transmission (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4282697P | 1997-04-08 | 1997-04-08 | |
| US5231998A | 1998-03-31 | 1998-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW445733B true TW445733B (en) | 2001-07-11 |
Family
ID=26719663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW087105268A TW445733B (en) | 1997-04-08 | 1998-05-08 | System and method for spectrally shaping transmitted data signals |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0974209A1 (fr) |
| JP (1) | JP2002501693A (fr) |
| KR (1) | KR20010006101A (fr) |
| CN (1) | CN1252195A (fr) |
| AU (1) | AU6882498A (fr) |
| BR (1) | BR9815183A (fr) |
| CA (1) | CA2285073A1 (fr) |
| EA (1) | EA001872B1 (fr) |
| IL (1) | IL131921A0 (fr) |
| TW (1) | TW445733B (fr) |
| WO (1) | WO1998045970A1 (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5999109A (en) | 1997-06-09 | 1999-12-07 | 3Com Corporation | Frame-based spectral shaping method and apparatus |
| EP1129554B1 (fr) * | 1998-11-14 | 2004-02-04 | STMicroelectronics Asia Pacific Pte Ltd. | Procedes de mise en oeuvre efficace de la mise en forme spectrale sur la base du treillis avec anticipation |
| US6778611B1 (en) | 1999-08-31 | 2004-08-17 | Broadcom Corporation | Subdimensional single-carrier modulation |
| EP1219085B1 (fr) * | 1999-08-31 | 2010-02-10 | Broadcom Corporation | Modulation par porteuse unique sous-dimensionnelle |
| US6418170B1 (en) * | 2000-02-07 | 2002-07-09 | Motorola, Inc. | Method and apparatus for achieving 180° phase invariant transmission in a PCM modem system |
| WO2001059946A1 (fr) | 2000-02-10 | 2001-08-16 | Telogy Networks, Inc. | Precodeur generalise pour le canal amont d'un modem en bande telephonique |
| US6973579B2 (en) | 2002-05-07 | 2005-12-06 | Interdigital Technology Corporation | Generation of user equipment identification specific scrambling code for the high speed shared control channel |
| TWI411298B (zh) * | 2009-03-05 | 2013-10-01 | Realtek Semiconductor Corp | Frequency conversion device and conversion method and filter thereof |
| US11418220B2 (en) | 2020-03-20 | 2022-08-16 | Huawei Technologies Co., Ltd. | Method, system, and apparatus for a segmented polarization-adjusted convolutional (PAC) code |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5040191A (en) * | 1987-02-24 | 1991-08-13 | Codex Corporation | Partial response channel signaling systems |
| US5150381A (en) * | 1989-02-16 | 1992-09-22 | Codex Corporation | Trellis shaping for modulation systems |
| US5548615A (en) * | 1993-05-03 | 1996-08-20 | At&T Corp. | Methods and apparatus for rotationally invariant multilevel coding |
| US5608397A (en) * | 1995-08-15 | 1997-03-04 | Lucent Technologies Inc. | Method and apparatus for generating DC-free sequences |
-
1998
- 1998-04-03 CN CN98803983A patent/CN1252195A/zh active Pending
- 1998-04-03 WO PCT/US1998/006650 patent/WO1998045970A1/fr not_active Ceased
- 1998-04-03 CA CA002285073A patent/CA2285073A1/fr not_active Abandoned
- 1998-04-03 AU AU68824/98A patent/AU6882498A/en not_active Abandoned
- 1998-04-03 BR BR9815183-5A patent/BR9815183A/pt not_active IP Right Cessation
- 1998-04-03 JP JP54293598A patent/JP2002501693A/ja not_active Ceased
- 1998-04-03 IL IL13192198A patent/IL131921A0/xx unknown
- 1998-04-03 EA EA199900807A patent/EA001872B1/ru not_active IP Right Cessation
- 1998-04-03 EP EP98914478A patent/EP0974209A1/fr not_active Withdrawn
- 1998-04-03 KR KR1019997009179A patent/KR20010006101A/ko not_active Ceased
- 1998-05-08 TW TW087105268A patent/TW445733B/zh active
Also Published As
| Publication number | Publication date |
|---|---|
| IL131921A0 (en) | 2001-03-19 |
| KR20010006101A (ko) | 2001-01-26 |
| EP0974209A1 (fr) | 2000-01-26 |
| EA001872B1 (ru) | 2001-10-22 |
| CN1252195A (zh) | 2000-05-03 |
| EA199900807A1 (ru) | 2000-06-26 |
| AU6882498A (en) | 1998-10-30 |
| WO1998045970A1 (fr) | 1998-10-15 |
| JP2002501693A (ja) | 2002-01-15 |
| CA2285073A1 (fr) | 1998-10-15 |
| BR9815183A (pt) | 2000-10-10 |
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