JPS4980913A - - Google Patents
Info
- Publication number
- JPS4980913A JPS4980913A JP11397072A JP11397072A JPS4980913A JP S4980913 A JPS4980913 A JP S4980913A JP 11397072 A JP11397072 A JP 11397072A JP 11397072 A JP11397072 A JP 11397072A JP S4980913 A JPS4980913 A JP S4980913A
- Authority
- JP
- Japan
- 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.)
- Pending
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
- H04L1/24—Testing correct operation
- H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica
- H04L1/243—Testing correct operation by comparing a transmitted test signal with a locally generated replica at the transmitter, using a loop-back
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Bidirectional Digital Transmission (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US19887671A | 1971-11-15 | 1971-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4980913A true JPS4980913A (sv) | 1974-08-05 |
Family
ID=22735224
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11397072A Pending JPS4980913A (sv) | 1971-11-15 | 1972-11-15 | |
| JP13306880U Pending JPS56104260U (sv) | 1971-11-15 | 1980-09-17 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13306880U Pending JPS56104260U (sv) | 1971-11-15 | 1980-09-17 |
Country Status (7)
| Country | Link |
|---|---|
| JP (2) | JPS4980913A (sv) |
| CA (1) | CA970888A (sv) |
| CH (1) | CH565487A5 (sv) |
| DE (1) | DE2255651A1 (sv) |
| FR (1) | FR2161606A5 (sv) |
| GB (1) | GB1372905A (sv) |
| SE (1) | SE383080B (sv) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2386202A1 (fr) * | 1977-03-31 | 1978-10-27 | Cit Alcatel | Dispositif de test en local pour un equipement de transmission de donnees duplex |
| EP0014583A1 (en) * | 1979-02-13 | 1980-08-20 | Macwell Systems Limited | Improvements in or relating to fault-finding apparatuses |
| JPH083074Y2 (ja) * | 1989-06-15 | 1996-01-29 | 松下電工株式会社 | テレビジョン受像機用リモートコントローラー |
-
1972
- 1972-11-14 CH CH1656472A patent/CH565487A5/xx not_active IP Right Cessation
- 1972-11-14 SE SE1479772A patent/SE383080B/sv unknown
- 1972-11-14 CA CA156,295A patent/CA970888A/en not_active Expired
- 1972-11-14 GB GB5248472A patent/GB1372905A/en not_active Expired
- 1972-11-14 DE DE19722255651 patent/DE2255651A1/de not_active Ceased
- 1972-11-14 FR FR7240372A patent/FR2161606A5/fr not_active Expired
- 1972-11-15 JP JP11397072A patent/JPS4980913A/ja active Pending
-
1980
- 1980-09-17 JP JP13306880U patent/JPS56104260U/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1372905A (en) | 1974-11-06 |
| SE383080B (sv) | 1976-02-23 |
| DE2255651A1 (de) | 1973-05-24 |
| CA970888A (en) | 1975-07-08 |
| JPS56104260U (sv) | 1981-08-14 |
| CH565487A5 (sv) | 1975-08-15 |
| FR2161606A5 (sv) | 1973-07-06 |