JPS5129374B1 - - Google Patents
Info
- Publication number
- JPS5129374B1 JPS5129374B1 JP44064451A JP6445169A JPS5129374B1 JP S5129374 B1 JPS5129374 B1 JP S5129374B1 JP 44064451 A JP44064451 A JP 44064451A JP 6445169 A JP6445169 A JP 6445169A JP S5129374 B1 JPS5129374 B1 JP S5129374B1
- 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
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
- H04B3/487—Testing crosstalk effects
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3886168 | 1968-08-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5129374B1 true JPS5129374B1 (ja) | 1976-08-25 |
Family
ID=10406135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP44064451A Pending JPS5129374B1 (ja) | 1968-08-14 | 1969-08-14 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3586993A (ja) |
| JP (1) | JPS5129374B1 (ja) |
| DE (1) | DE1941535A1 (ja) |
| GB (1) | GB1264134A (ja) |
| SE (1) | SE356602B (ja) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3789146A (en) * | 1972-11-20 | 1974-01-29 | Bell Telephone Labor Inc | Overload monitor for transmission systems |
| GB1460513A (en) * | 1974-05-30 | 1977-01-06 | Poost Office | Measurement of noise in a communication channel |
| US3970795A (en) * | 1974-07-16 | 1976-07-20 | The Post Office | Measurement of noise in a communication channel |
| US4475090A (en) * | 1982-08-23 | 1984-10-02 | Micronetics, Inc. | Noise generator having variable bandwidth and center frequency |
| US5172064A (en) * | 1991-12-02 | 1992-12-15 | The United States Of America As Represented By The Secretary Of Commerce | Calibration system for determining the accuracy of phase modulation and amplitude modulation noise measurement apparatus |
| US5434546A (en) * | 1993-11-15 | 1995-07-18 | Palmer; James K. | Circuit for simultaneous amplitude modulation of a number of signals |
| CN104820145B (zh) * | 2015-04-16 | 2018-01-26 | 中国科学院物理研究所 | 用于对锁相放大器进行测试的测试仪及其测试方法 |
-
1968
- 1968-08-14 GB GB3886168A patent/GB1264134A/en not_active Expired
-
1969
- 1969-08-11 US US848864A patent/US3586993A/en not_active Expired - Lifetime
- 1969-08-12 SE SE11205/69A patent/SE356602B/xx unknown
- 1969-08-14 JP JP44064451A patent/JPS5129374B1/ja active Pending
- 1969-08-14 DE DE19691941535 patent/DE1941535A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3586993A (en) | 1971-06-22 |
| GB1264134A (ja) | 1972-02-16 |
| DE1941535A1 (de) | 1970-02-26 |
| SE356602B (ja) | 1973-05-28 |