CA2021295A1 - Detecteur de polarite pour lignes d'abonne - Google Patents
Detecteur de polarite pour lignes d'abonneInfo
- Publication number
- CA2021295A1 CA2021295A1 CA2021295A CA2021295A CA2021295A1 CA 2021295 A1 CA2021295 A1 CA 2021295A1 CA 2021295 A CA2021295 A CA 2021295A CA 2021295 A CA2021295 A CA 2021295A CA 2021295 A1 CA2021295 A1 CA 2021295A1
- Authority
- CA
- Canada
- Prior art keywords
- polarity
- data
- subscriber lines
- complementary
- detector
- 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
Classifications
-
- 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
- H04L25/4919—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 balanced multilevel codes
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Dc Digital Transmission (AREA)
- Interface Circuits In Exchanges (AREA)
- Telephone Function (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1-182626 | 1989-07-17 | ||
JP1182626A JP2811323B2 (ja) | 1989-07-17 | 1989-07-17 | 加入者線極性判定回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2021295A1 true CA2021295A1 (fr) | 1991-01-18 |
CA2021295C CA2021295C (fr) | 1994-09-13 |
Family
ID=16121579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002021295A Expired - Fee Related CA2021295C (fr) | 1989-07-17 | 1990-07-16 | Detecteur de polarite pour lignes d'abonne |
Country Status (3)
Country | Link |
---|---|
US (1) | US5099497A (fr) |
JP (1) | JP2811323B2 (fr) |
CA (1) | CA2021295C (fr) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5392347A (en) * | 1992-02-19 | 1995-02-21 | Nec Corporation | Ringing tone signal detecting circuit |
US5898886A (en) * | 1996-11-19 | 1999-04-27 | Advanced Micro Devices, Inc. | Multimedia devices in computer system that selectively employ a communications protocol by determining the presence of the quaternary interface |
FR2768279B1 (fr) * | 1997-09-08 | 1999-11-12 | St Microelectronics Sa | Procede et dispositif de transcodage en bande de base d'informations numeriques |
JP4197510B2 (ja) | 2004-11-24 | 2008-12-17 | 株式会社リッチェル | 愛玩動物侵入規制用柵 |
US7424651B2 (en) * | 2004-12-21 | 2008-09-09 | Tyco Telecommunications (Us) Inc. | Method and apparatus for decision threshold control in an optical signal receiver |
JP4932236B2 (ja) * | 2005-11-29 | 2012-05-16 | Necエンジニアリング株式会社 | 差動信号回線の誤接続検出方法及びシステム |
JP5127151B2 (ja) * | 2006-04-13 | 2013-01-23 | 株式会社リッチェル | 通行規制ゲート装置 |
TWI301372B (en) * | 2006-04-21 | 2008-09-21 | Hon Hai Prec Ind Co Ltd | System and method for auto-reversing loop polarity of u interface |
CN101378342B (zh) * | 2007-08-28 | 2010-12-08 | 鸿富锦精密工业(深圳)有限公司 | U接口状况判断系统及方法 |
US8528257B2 (en) | 2011-03-04 | 2013-09-10 | Richell Corporation | Convertible pet barrier with a connection member |
US8855248B2 (en) | 2011-10-25 | 2014-10-07 | Cavium, Inc. | Word boundary lock |
US20130101076A1 (en) * | 2011-10-25 | 2013-04-25 | Cavium, Inc. | Polarity Detection |
US9065626B2 (en) | 2011-10-25 | 2015-06-23 | Cavium, Inc. | Bit error rate impact reduction |
US10985949B2 (en) * | 2017-01-16 | 2021-04-20 | Sony Semiconductor Solutions Corporation | Transmission control device, reception control device, and transmission/reception control system |
CN110224786B (zh) * | 2018-03-01 | 2022-05-13 | 京东方科技集团股份有限公司 | 数据传输方法、装置、系统及显示装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3560856A (en) * | 1966-12-29 | 1971-02-02 | Nippon Electric Co | Multilevel signal transmission system |
US4003041A (en) * | 1973-04-25 | 1977-01-11 | De Staat der Nederlanden, te Deze Vertegenwoordigd door De Directeur-General der Posterijen, Telegraphie en Telefonie | System for converting binary signals into shorter balanced ternary code signals |
GB2183971B (en) * | 1985-12-05 | 1989-10-04 | Stc Plc | Data transmission system |
-
1989
- 1989-07-17 JP JP1182626A patent/JP2811323B2/ja not_active Expired - Fee Related
-
1990
- 1990-07-12 US US07/551,292 patent/US5099497A/en not_active Expired - Lifetime
- 1990-07-16 CA CA002021295A patent/CA2021295C/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2021295C (fr) | 1994-09-13 |
JP2811323B2 (ja) | 1998-10-15 |
JPH0348555A (ja) | 1991-03-01 |
US5099497A (en) | 1992-03-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |