KR20010108156A - Ｐｃｍ 모뎀을 위한 번역 테이블 설계 방법 - Google Patents
Ｐｃｍ 모뎀을 위한 번역 테이블 설계 방법 Download PDFInfo
- Publication number
- KR20010108156A KR20010108156A KR1020017009582A KR20017009582A KR20010108156A KR 20010108156 A KR20010108156 A KR 20010108156A KR 1020017009582 A KR1020017009582 A KR 1020017009582A KR 20017009582 A KR20017009582 A KR 20017009582A KR 20010108156 A KR20010108156 A KR 20010108156A
- Authority
- KR
- South Korea
- Prior art keywords
- distances
- slot
- law
- pad
- levels
- Prior art date
Links
- 238000013519 translation Methods 0.000 title claims abstract description 47
- 238000013461 design Methods 0.000 title description 16
- 238000000034 method Methods 0.000 claims abstract description 91
- 238000012937 correction Methods 0.000 claims description 11
- 230000011664 signaling Effects 0.000 claims description 6
- 238000012935 Averaging Methods 0.000 claims 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 claims 1
- 239000011574 phosphorus Substances 0.000 claims 1
- 230000008054 signal transmission Effects 0.000 abstract description 22
- 230000006870 function Effects 0.000 description 47
- 238000000926 separation method Methods 0.000 description 13
- 238000005457 optimization Methods 0.000 description 9
- 238000003491 array Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 230000006735 deficit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/04—Modulator circuits; Transmitter circuits
-
- 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
- H04B14/046—Systems or methods for reducing noise or bandwidth
- H04B14/048—Non linear compression or expansion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/12—Arrangements providing for calling or supervisory signals
- H04J3/125—One of the channel pulses or the synchronisation pulse is also used for transmitting monitoring or supervisory signals
-
- 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)
- Nonlinear Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/238,320 US6185249B1 (en) | 1999-01-28 | 1999-01-28 | Translation table design for a PCM modem |
| US09/238,320 | 1999-01-28 | ||
| PCT/US2000/001141 WO2000045524A1 (en) | 1999-01-28 | 2000-01-18 | Translation table design for a pcm modem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20010108156A true KR20010108156A (ko) | 2001-12-07 |
Family
ID=22897394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020017009582A KR20010108156A (ko) | 1999-01-28 | 2000-01-18 | Ｐｃｍ 모뎀을 위한 번역 테이블 설계 방법 |
Country Status (7)
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6643270B1 (en) * | 1998-03-03 | 2003-11-04 | Vocal Technologies, Ltd | Method of compensating for systemic impairments in a telecommunications network |
| US6523233B1 (en) * | 1999-04-22 | 2003-02-25 | Agere Systems, Inc. | Method and apparatus for telephone network impairment detection and compensation in signal transmission between modems |
| US6721363B1 (en) * | 1999-06-24 | 2004-04-13 | Intel Corporation | Receiver CODEC super set constellation generator |
| US7366470B1 (en) | 1999-06-24 | 2008-04-29 | Intel Corporation | Inter-modulation distortion compensation |
| US6721357B1 (en) | 1999-06-24 | 2004-04-13 | Intel Corporation | Constellation generation and re-evaluation |
| US7339996B2 (en) | 1999-06-24 | 2008-03-04 | Intel Corporation | Receiver codec super set constellation generator |
| US6724814B1 (en) * | 1999-06-24 | 2004-04-20 | Intel Corporation | Pad and CODEC detection |
| US6792004B1 (en) * | 1999-10-29 | 2004-09-14 | International Business Machines Corporation | Systems, methods and computer program products for averaging learned levels in the presence of robbed-bit signaling based on proximity |
| US6662322B1 (en) * | 1999-10-29 | 2003-12-09 | International Business Machines Corporation | Systems, methods, and computer program products for controlling the error rate in a communication device by adjusting the distance between signal constellation points |
| US6650657B1 (en) * | 1999-10-29 | 2003-11-18 | International Business Machines Corporation | Systems, methods and computer program products for identifying digital impairments in modem signals |
| US6693967B1 (en) | 2000-03-16 | 2004-02-17 | Agere Systems Inc. | Detecting encoding and encoding conversion for modem connections |
| US6785326B1 (en) * | 2000-08-07 | 2004-08-31 | Freescale Semiconductor, Inc. | Method and apparatus for detecting and compensating digital losses in a communications network |
| US6560277B2 (en) | 2001-02-09 | 2003-05-06 | Pc Tel, Inc. | Distinguishing between final coding of received signals in a PCM modem |
| US7170947B2 (en) * | 2001-07-18 | 2007-01-30 | Massana Research Limited | Data receiver |
| US20050204337A1 (en) * | 2003-12-31 | 2005-09-15 | Automatic E-Learning Llc | System for developing an electronic presentation |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5394437A (en) * | 1992-10-20 | 1995-02-28 | At&T Corp. | High-speed modem synchronized to a remote CODEC |
| US5406583A (en) * | 1993-06-21 | 1995-04-11 | At&T Corp. | Modem with received signals and transmitted signals comprising signal sets |
| SG52242A1 (en) * | 1993-12-09 | 1998-09-28 | Reckitt & Colman Inc | Composition and method for sewage treatment using fungal and bacterial enzymes |
| US5528625A (en) * | 1994-01-03 | 1996-06-18 | At&T Corp. | High speed quantization-level-sampling modem with equalization arrangement |
| US5875229A (en) * | 1996-10-15 | 1999-02-23 | Motorola Inc. | System and device for, and method of, detecting, characterizing, and mitigating deterministic distortion in a communications network |
| US5926505A (en) * | 1996-10-16 | 1999-07-20 | Cirrus Logic, Inc. | Device, system, and method for modem communication utilizing two-step mapping |
| US5825816A (en) * | 1997-02-14 | 1998-10-20 | General Datacomm, Inc. | Spectral and power shaping mapper for high data rate signalling |
| US5862179A (en) * | 1997-02-14 | 1999-01-19 | General Datacomm, Inc. | Mapper for high data rate signalling |
| US5862184A (en) * | 1997-02-14 | 1999-01-19 | General Datacomm, Inc. | Mapper for high data rate transmission through channels subject to robbed bit signalling |
| US5822371A (en) * | 1997-02-14 | 1998-10-13 | General Datacomm Inc. | Mapper for high data rate signalling |
| US5825823A (en) * | 1997-06-06 | 1998-10-20 | General Datacomm, Inc. | PCM channel diagnosis |
| US6201842B1 (en) * | 1997-12-29 | 2001-03-13 | Motorola Inc. | Device and method for detecting PCM upstream digital impairments in a communication network |
-
1999
- 1999-01-28 US US09/238,320 patent/US6185249B1/en not_active Expired - Lifetime
-
2000
- 2000-01-18 WO PCT/US2000/001141 patent/WO2000045524A1/en not_active Application Discontinuation
- 2000-01-18 JP JP2000596674A patent/JP2002536866A/ja not_active Withdrawn
- 2000-01-18 KR KR1020017009582A patent/KR20010108156A/ko not_active Application Discontinuation
- 2000-01-18 EP EP00903325A patent/EP1161798A4/en not_active Withdrawn
- 2000-01-18 AU AU25089/00A patent/AU2508900A/en not_active Abandoned
- 2000-01-18 CA CA002360774A patent/CA2360774A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP1161798A4 (en) | 2004-12-15 |
| WO2000045524A1 (en) | 2000-08-03 |
| AU2508900A (en) | 2000-08-18 |
| US6185249B1 (en) | 2001-02-06 |
| JP2002536866A (ja) | 2002-10-29 |
| EP1161798A1 (en) | 2001-12-12 |
| CA2360774A1 (en) | 2000-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100632742B1 (ko) | Ｐｃｍ 모뎀을 위한 배열 설계 | |
| KR100661767B1 (ko) | Ｐｃｍ 모뎀에서 손실된 비트 신호 전송 식별 | |
| KR20010108156A (ko) | Ｐｃｍ 모뎀을 위한 번역 테이블 설계 방법 | |
| US5825823A (en) | PCM channel diagnosis | |
| JPH08279792A (ja) | 量子化雑音抑制方法 | |
| US6301296B1 (en) | Digital impairment learning sequence | |
| KR20010104703A (ko) | ＰＣＭ 모뎀에서 수신된 Ａ-법칙 및 μ-법칙 신호들을구별하는 방법 | |
| US6542551B1 (en) | Translation table and constellation design for a PCM modem subjected to alternating robbed bit signaling | |
| EP1155543B1 (en) | Method for detecting a digital connection | |
| US6421388B1 (en) | Method and apparatus for determining PCM code translations | |
| US6778597B2 (en) | Distinguishing between final coding of received signals in a PCM modem | |
| KR100815068B1 (ko) | Ｐｃｍ 모뎀용 트레이닝 시퀀스의 생성 | |
| US6888885B2 (en) | Modem data constellation design including power compensation for analog loss and utilization of maximum dynamic range of CODEC | |
| US6816545B1 (en) | Systems, methods and computer program products for identifying digital impairments in modems based on clusters and/or skips in pulse code modulation signal levels | |
| KR20010092372A (ko) | 라인 인코딩 검출 방법 및 라인 인코딩 검출 회로 | |
| US7339996B2 (en) | Receiver codec super set constellation generator | |
| Keiser et al. | Pulse code modulation | |
| Channels | Modulation, Pre-Equalization and Pulse Shaping | |
| MXPA00006432A (en) | Device and method for detecting pcm upstream digital impairments in a communication network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| N231 | Notification of change of applicant | ||
| WITN | Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid |