IE48301B1 - A method and a circuit for decoding a c.m.i.encoded binary signal - Google Patents
A method and a circuit for decoding a c.m.i.encoded binary signalInfo
- Publication number
- IE48301B1 IE48301B1 IE1412/79A IE141279A IE48301B1 IE 48301 B1 IE48301 B1 IE 48301B1 IE 1412/79 A IE1412/79 A IE 1412/79A IE 141279 A IE141279 A IE 141279A IE 48301 B1 IE48301 B1 IE 48301B1
- Authority
- IE
- Ireland
- Prior art keywords
- signal
- output
- bit period
- input
- logic gate
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000007704 transition Effects 0.000 claims abstract description 44
- 238000010586 diagram Methods 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 7
- 230000003111 delayed effect Effects 0.000 description 5
- 230000001934 delay Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000000873 masking effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- H04L25/4906—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 binary codes
- H04L25/4908—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 binary codes using mBnB codes
- H04L25/491—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 binary codes using mBnB codes using 1B2B codes
- H04L25/4912—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 binary codes using mBnB codes using 1B2B codes using CMI or 2-HDB-3 code
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Dc Digital Transmission (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7822153A FR2432246A1 (fr) | 1978-07-26 | 1978-07-26 | Procede et circuit de decodage d'un signal binaire code en cmi |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE791412L IE791412L (en) | 1980-01-26 |
| IE48301B1 true IE48301B1 (en) | 1984-11-28 |
Family
ID=9211208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1412/79A IE48301B1 (en) | 1978-07-26 | 1979-08-08 | A method and a circuit for decoding a c.m.i.encoded binary signal |
Country Status (10)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4502142A (en) * | 1982-09-07 | 1985-02-26 | Lockheed Electronics Company, Inc. | Apparatus for detecting errors in a digital data stream encoded in a double density code |
| DE3236365A1 (de) * | 1982-10-01 | 1984-04-05 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Funksystem zur nachrichtenuebertragung mit sich laengs vorgegebener strecken bewegenden sende-empfangsstationen |
| DE3245845A1 (de) * | 1982-12-10 | 1984-06-14 | Siemens AG, 1000 Berlin und 8000 München | Cmi-decoder |
| DE3248624A1 (de) * | 1982-12-30 | 1984-08-23 | Hans Kolbe & Co, 3202 Bad Salzdetfurth | Schaltungsanordnung zur erzeugung eines digitalen binaeren datensignals und eines zugehoerigen taktsignals aus einem cmi-codierten signals, dessen taktfrequenz ueber 30 mhz liegt |
| DE3302761A1 (de) * | 1983-01-27 | 1984-08-02 | Siemens AG, 1000 Berlin und 8000 München | Cmi-decoder |
| DE3310713A1 (de) * | 1983-03-24 | 1984-09-27 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Verfahren zum decodieren eines cmi-signals |
| IT8324267A0 (it) * | 1983-12-20 | 1983-12-20 | Italtel Spa | Disposizione circuitale atta a rilevare il tasso di errore in sistemi di trasmissione di tipo numerico. |
| NL8403366A (nl) * | 1984-11-06 | 1986-06-02 | Philips Nv | Inrichting voor het bewaken van een cmi-codeomvormer. |
| FR2598050B1 (fr) * | 1986-04-28 | 1992-10-23 | Telecommunications Sa | Dispositif de decodage pour code cmi |
| ES2052984T3 (es) * | 1989-03-02 | 1994-07-16 | Siemens Ag | Instalacion decodificadora-cmi y de recuperacion del impulso de reloj. |
| SE466725B (sv) * | 1990-07-18 | 1992-03-23 | Goeran Krook | Foerfarande foer att begraensa bandbredden hos en godtycklig binaer signal |
| KR930007652B1 (ko) * | 1991-07-19 | 1993-08-14 | 한국전기 통신공사 | Cmi데이터 비트동기를 위한 위상검출기와 연동되어 동작하는 cmi/nrz복호기 |
| US6184807B1 (en) * | 1998-07-28 | 2001-02-06 | Lucent Technologies, Inc. | Glitch-free bi-phased encoder |
| US20020041622A1 (en) * | 2000-09-29 | 2002-04-11 | David Steed | Spread spectrum frequency hopping communications system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1051518A (US08124317-20120228-C00060.png) * | 1964-07-08 | 1900-01-01 | ||
| US3683277A (en) * | 1970-04-13 | 1972-08-08 | Astrocon Corp | Communication system for binary coded data |
| US3699554A (en) * | 1970-07-02 | 1972-10-17 | Honeywell Inf Systems | Method and apparatus for detecting binary data by integrated signal polarity comparison |
| NO133170C (US08124317-20120228-C00060.png) * | 1973-04-13 | 1976-03-17 | Standard Tel Kabelfab As | |
| GB1489177A (en) * | 1973-10-16 | 1977-10-19 | Gen Electric Co Ltd | Digital data signalling systems and apparatus therefor |
| US3967061A (en) * | 1975-03-05 | 1976-06-29 | Ncr Corporation | Method and apparatus for recovering data and clock information in a self-clocking data stream |
| JPS52112311A (en) * | 1976-03-18 | 1977-09-20 | Sony Corp | Demodulating circuit |
-
1978
- 1978-07-26 FR FR7822153A patent/FR2432246A1/fr active Granted
-
1979
- 1979-07-13 BE BE1/9465A patent/BE877678A/fr not_active IP Right Cessation
- 1979-07-17 GB GB7924821A patent/GB2026819B/en not_active Expired
- 1979-07-17 LU LU81517A patent/LU81517A1/fr unknown
- 1979-07-19 US US06/058,650 patent/US4325053A/en not_active Expired - Lifetime
- 1979-07-19 DE DE2929248A patent/DE2929248C2/de not_active Expired
- 1979-07-23 CA CA332,344A patent/CA1129105A/fr not_active Expired
- 1979-07-24 NL NL7905729A patent/NL7905729A/nl not_active Application Discontinuation
- 1979-07-25 IT IT68544/79A patent/IT1118811B/it active
- 1979-08-08 IE IE1412/79A patent/IE48301B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2432246B1 (US08124317-20120228-C00060.png) | 1980-12-12 |
| CA1129105A (fr) | 1982-08-03 |
| GB2026819B (en) | 1982-08-25 |
| DE2929248C2 (de) | 1987-02-26 |
| IT1118811B (it) | 1986-03-03 |
| IE791412L (en) | 1980-01-26 |
| IT7968544A0 (it) | 1979-07-25 |
| DE2929248A1 (de) | 1980-02-14 |
| NL7905729A (nl) | 1980-01-29 |
| BE877678A (fr) | 1980-01-14 |
| LU81517A1 (fr) | 1980-02-14 |
| FR2432246A1 (fr) | 1980-02-22 |
| GB2026819A (en) | 1980-02-06 |
| US4325053A (en) | 1982-04-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Patent lapsed |