DE2255651A1 - Pruefschaltung fuer datenmodems - Google Patents
Pruefschaltung fuer datenmodemsInfo
- Publication number
- DE2255651A1 DE2255651A1 DE19722255651 DE2255651A DE2255651A1 DE 2255651 A1 DE2255651 A1 DE 2255651A1 DE 19722255651 DE19722255651 DE 19722255651 DE 2255651 A DE2255651 A DE 2255651A DE 2255651 A1 DE2255651 A1 DE 2255651A1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- data
- frequency
- modem
- output
- 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.)
- Ceased
Links
- 238000012360 testing method Methods 0.000 title claims description 35
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 description 12
- 108010076504 Protein Sorting Signals Proteins 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BBXXLROWFHWFQY-UHFFFAOYSA-N ethirimol Chemical compound CCCCC1=C(C)NC(NCC)=NC1=O BBXXLROWFHWFQY-UHFFFAOYSA-N 0.000 description 2
- 101100165798 Arabidopsis thaliana CYP86A1 gene Proteins 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- XAEWZDYWZHIUCT-UHFFFAOYSA-N desipramine hydrochloride Chemical compound [H+].[Cl-].C1CC2=CC=CC=C2N(CCCNC)C2=CC=CC=C21 XAEWZDYWZHIUCT-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000011330 nucleic acid test Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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 |
|---|---|
| DE2255651A1 true DE2255651A1 (de) | 1973-05-24 |
Family
ID=22735224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722255651 Ceased DE2255651A1 (de) | 1971-11-15 | 1972-11-14 | Pruefschaltung fuer datenmodems |
Country Status (7)
| Country | Link |
|---|---|
| JP (2) | JPS4980913A (enrdf_load_html_response) |
| CA (1) | CA970888A (enrdf_load_html_response) |
| CH (1) | CH565487A5 (enrdf_load_html_response) |
| DE (1) | DE2255651A1 (enrdf_load_html_response) |
| FR (1) | FR2161606A5 (enrdf_load_html_response) |
| GB (1) | GB1372905A (enrdf_load_html_response) |
| SE (1) | SE383080B (enrdf_load_html_response) |
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 GB GB5248472A patent/GB1372905A/en not_active Expired
- 1972-11-14 CA CA156,295A patent/CA970888A/en not_active Expired
- 1972-11-14 FR FR7240372A patent/FR2161606A5/fr not_active Expired
- 1972-11-14 CH CH1656472A patent/CH565487A5/xx not_active IP Right Cessation
- 1972-11-14 DE DE19722255651 patent/DE2255651A1/de not_active Ceased
- 1972-11-14 SE SE1479772A patent/SE383080B/xx unknown
- 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 |
|---|---|
| CH565487A5 (enrdf_load_html_response) | 1975-08-15 |
| JPS4980913A (enrdf_load_html_response) | 1974-08-05 |
| CA970888A (en) | 1975-07-08 |
| GB1372905A (en) | 1974-11-06 |
| JPS56104260U (enrdf_load_html_response) | 1981-08-14 |
| FR2161606A5 (enrdf_load_html_response) | 1973-07-06 |
| SE383080B (sv) | 1976-02-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| 8131 | Rejection |