JPS6346624B2 - - Google Patents
Info
- Publication number
- JPS6346624B2 JPS6346624B2 JP54140383A JP14038379A JPS6346624B2 JP S6346624 B2 JPS6346624 B2 JP S6346624B2 JP 54140383 A JP54140383 A JP 54140383A JP 14038379 A JP14038379 A JP 14038379A JP S6346624 B2 JPS6346624 B2 JP S6346624B2
- Authority
- JP
- Japan
- Prior art keywords
- bit
- signal
- bits
- digital information
- parity
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/24—Testing correct operation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Detection And Correction Of Errors (AREA)
- Error Detection And Correction (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7830848A FR2440664A1 (fr) | 1978-10-31 | 1978-10-31 | Dispositif de mesure de la qualite d'une liaison numerique et equipements de transmission comportant un tel dispositif |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5561158A JPS5561158A (en) | 1980-05-08 |
| JPS6346624B2 true JPS6346624B2 (enExample) | 1988-09-16 |
Family
ID=9214328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14038379A Granted JPS5561158A (en) | 1978-10-31 | 1979-10-30 | Device for measuring quality of digital link |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4296495A (enExample) |
| EP (1) | EP0011014B1 (enExample) |
| JP (1) | JPS5561158A (enExample) |
| CA (1) | CA1134047A (enExample) |
| DE (1) | DE2962728D1 (enExample) |
| FR (1) | FR2440664A1 (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2524239A1 (fr) * | 1982-03-29 | 1983-09-30 | Telediffusion Fse | Equipement de mesure de voies numeriques multiplexees par paquet dans un signal notamment analogique |
| US4823347A (en) * | 1987-05-18 | 1989-04-18 | International Business Machines Corporation | Deferred parity checking of control signals across a bidirectional data transmission interface |
| FR2649561B1 (fr) * | 1989-07-07 | 1994-05-20 | Alcatel Transmission Faisceaux H | Dispositif d'estimation du taux d'erreur d'un canal de transmission et application aux transmissions hertziennes |
| US6147998A (en) * | 1997-08-26 | 2000-11-14 | Visual Networks Technologies, Inc. | Method and apparatus for performing in-service quality of service testing |
| US7596373B2 (en) * | 2002-03-21 | 2009-09-29 | Mcgregor Christopher M | Method and system for quality of service (QoS) monitoring for wireless devices |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB714094A (en) * | 1952-01-18 | 1954-08-25 | Gen Electric Co Ltd | Improvements in or relating to electric pulse code modulation signalling systems |
| US3916379A (en) * | 1974-04-08 | 1975-10-28 | Honeywell Inf Systems | Error-rate monitoring unit in a communication system |
| FR2342599A1 (fr) * | 1976-02-27 | 1977-09-23 | Lignes Telegraph Telephon | Procede de controle de la qualite d'une liaison numerique et equipement de mise en oeuvre |
| US4022988A (en) * | 1976-06-14 | 1977-05-10 | Bell Telephone Laboratories, Incorporated | Fault locating apparatus for digital transmission system |
| JPS5337308A (en) * | 1976-09-17 | 1978-04-06 | Nec Corp | Line monitor system |
| FR2390052B1 (enExample) * | 1977-05-06 | 1981-07-03 | Poitevin Jean Pierre |
-
1978
- 1978-10-31 FR FR7830848A patent/FR2440664A1/fr active Granted
-
1979
- 1979-10-19 DE DE7979400771T patent/DE2962728D1/de not_active Expired
- 1979-10-19 EP EP79400771A patent/EP0011014B1/fr not_active Expired
- 1979-10-24 US US06/088,098 patent/US4296495A/en not_active Expired - Lifetime
- 1979-10-26 CA CA338,562A patent/CA1134047A/en not_active Expired
- 1979-10-30 JP JP14038379A patent/JPS5561158A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5561158A (en) | 1980-05-08 |
| CA1134047A (en) | 1982-10-19 |
| US4296495A (en) | 1981-10-20 |
| FR2440664A1 (fr) | 1980-05-30 |
| FR2440664B1 (enExample) | 1981-01-09 |
| EP0011014B1 (fr) | 1982-05-05 |
| DE2962728D1 (en) | 1982-06-24 |
| EP0011014A1 (fr) | 1980-05-14 |
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