JPS4975253A - - Google Patents
Info
- Publication number
- JPS4975253A JPS4975253A JP48118609A JP11860973A JPS4975253A JP S4975253 A JPS4975253 A JP S4975253A JP 48118609 A JP48118609 A JP 48118609A JP 11860973 A JP11860973 A JP 11860973A JP S4975253 A JPS4975253 A JP S4975253A
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/12—Arrangements providing for calling or supervisory signals
- H04J3/125—One of the channel pulses or the synchronisation pulse is also used for transmitting monitoring or supervisory signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/10—Calibration or testing
- H03M1/1071—Measuring or testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/14—Monitoring arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1533472A CH551112A (de) | 1972-10-24 | 1972-10-24 | Verfahren zur dauernden ueberwachung von coder und decoder in einer pcm-endstelle. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4975253A true JPS4975253A (ja) | 1974-07-19 |
Family
ID=4408266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48118609A Pending JPS4975253A (ja) | 1972-10-24 | 1973-10-23 |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS4975253A (ja) |
| CH (1) | CH551112A (ja) |
| DE (1) | DE2346607A1 (ja) |
| FR (1) | FR2204086B1 (ja) |
| GB (1) | GB1417627A (ja) |
| NL (1) | NL7314164A (ja) |
| SE (1) | SE7314401L (ja) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4552992A (en) * | 1983-12-12 | 1985-11-12 | Digital Equipment Corporation | Analog signal verification circuit |
| ATE205031T1 (de) * | 1997-03-07 | 2001-09-15 | 3Com Corp | System und verfahren zur bestimmung der end-zu- end-eigenschaften eines kommunikationskanals |
| US6088334A (en) * | 1997-03-13 | 2000-07-11 | U. S. Robotics Access Corp. | System and method for determining end-to-end characteristics of a data communication channel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1587600A (ja) * | 1968-10-30 | 1970-03-20 |
-
1972
- 1972-10-24 CH CH1533472A patent/CH551112A/xx not_active IP Right Cessation
-
1973
- 1973-09-15 DE DE19732346607 patent/DE2346607A1/de active Pending
- 1973-10-15 NL NL7314164A patent/NL7314164A/xx unknown
- 1973-10-23 JP JP48118609A patent/JPS4975253A/ja active Pending
- 1973-10-23 FR FR7337746A patent/FR2204086B1/fr not_active Expired
- 1973-10-23 GB GB4934973A patent/GB1417627A/en not_active Expired
- 1973-10-24 SE SE7314401A patent/SE7314401L/ unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2204086B1 (ja) | 1976-04-30 |
| SE7314401L (ja) | 1974-04-25 |
| CH551112A (de) | 1974-06-28 |
| GB1417627A (en) | 1975-12-10 |
| FR2204086A1 (ja) | 1974-05-17 |
| NL7314164A (ja) | 1974-04-26 |
| DE2346607A1 (de) | 1974-05-02 |