CA1065015A - Instruments and methods for measuring characteristics of only a selected portion of a transmission channel - Google Patents
Instruments and methods for measuring characteristics of only a selected portion of a transmission channelInfo
- Publication number
- CA1065015A CA1065015A CA270,731A CA270731A CA1065015A CA 1065015 A CA1065015 A CA 1065015A CA 270731 A CA270731 A CA 270731A CA 1065015 A CA1065015 A CA 1065015A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- tone
- received
- test
- channel
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 269
- 239000000306 component Substances 0.000 claims description 125
- 238000012545 processing Methods 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 15
- 230000006854 communication Effects 0.000 claims description 15
- 230000004044 response Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims 10
- 238000005259 measurement Methods 0.000 abstract description 10
- 230000006735 deficit Effects 0.000 abstract description 3
- 230000001419 dependent effect Effects 0.000 abstract description 2
- 101150118300 cos gene Proteins 0.000 description 21
- 239000002131 composite material Substances 0.000 description 19
- 230000003321 amplification Effects 0.000 description 7
- 238000003199 nucleic acid amplification method Methods 0.000 description 7
- 230000002238 attenuated effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 101100234408 Danio rerio kif7 gene Proteins 0.000 description 1
- 101100221620 Drosophila melanogaster cos gene Proteins 0.000 description 1
- UIQMVEYFGZJHCZ-SSTWWWIQSA-N Nalorphine Chemical compound C([C@@H](N(CC1)CC=C)[C@@H]2C=C[C@@H]3O)C4=CC=C(O)C5=C4[C@@]21[C@H]3O5 UIQMVEYFGZJHCZ-SSTWWWIQSA-N 0.000 description 1
- 101100398237 Xenopus tropicalis kif11 gene Proteins 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000013142 basic testing Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/661,106 US4021625A (en) | 1976-02-25 | 1976-02-25 | Instruments and methods for measuring characteristics of only a selected portion of a transmission channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1065015A true CA1065015A (en) | 1979-10-23 |
Family
ID=24652244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA270,731A Expired CA1065015A (en) | 1976-02-25 | 1977-01-31 | Instruments and methods for measuring characteristics of only a selected portion of a transmission channel |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4021625A (enExample) |
| JP (1) | JPS5942504B2 (enExample) |
| CA (1) | CA1065015A (enExample) |
| DE (1) | DE2707586A1 (enExample) |
| FR (1) | FR2342594A1 (enExample) |
| GB (1) | GB1510770A (enExample) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4086448A (en) * | 1977-04-18 | 1978-04-25 | Bell Telephone Laboratories, Incorporated | Loop-around test circuit for telecommunications lines |
| US4271150A (en) * | 1979-03-07 | 1981-06-02 | Zeria-Shinyaku Kogyo Kabushiki Kaisha | Urokinase preparation for oral administration |
| IT1209192B (it) * | 1980-02-18 | 1989-07-16 | Sits Soc It Telecom Siemens | Sistema di misura per elementi del multiplo pam di una centrale elettronica di commutazione per telecomunicazioni. |
| US4317214A (en) * | 1980-07-14 | 1982-02-23 | Attinello John S | Apparatus for simulating interference transmissions |
| JPH04130701U (ja) * | 1991-05-20 | 1992-11-30 | 泉 小林 | 癖毛伸し器 |
| CA2464525C (en) * | 2001-10-24 | 2012-01-10 | Pressure Profile Systems, Inc. | Array sensor electronics |
| US7558686B1 (en) | 2005-12-02 | 2009-07-07 | Veritium Research LLC | Method and apparatus for displaying a representation of a signal |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1869515A (en) * | 1931-12-22 | 1932-08-02 | American Telephone & Telegraph | Measurement of attenuation and noise |
| US3920935A (en) * | 1970-12-21 | 1975-11-18 | Oskar Vierling | Method for measuring the frequency-dependent attenuation of a telecommunications line, especially a two-wire line |
| US3814868A (en) * | 1972-07-12 | 1974-06-04 | F Bradley | Telephone line characteristic measuring instrument |
| US3836735A (en) * | 1972-10-16 | 1974-09-17 | F Bradley | Telephone line characteristic measuring instrument |
-
1976
- 1976-02-25 US US05/661,106 patent/US4021625A/en not_active Expired - Lifetime
-
1977
- 1977-01-17 GB GB1673/77A patent/GB1510770A/en not_active Expired
- 1977-01-31 CA CA270,731A patent/CA1065015A/en not_active Expired
- 1977-02-22 DE DE19772707586 patent/DE2707586A1/de not_active Withdrawn
- 1977-02-25 FR FR7705548A patent/FR2342594A1/fr active Granted
- 1977-02-25 JP JP52019401A patent/JPS5942504B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52104013A (en) | 1977-09-01 |
| FR2342594B3 (enExample) | 1980-01-11 |
| GB1510770A (en) | 1978-05-17 |
| US4021625A (en) | 1977-05-03 |
| JPS5942504B2 (ja) | 1984-10-15 |
| FR2342594A1 (fr) | 1977-09-23 |
| DE2707586A1 (de) | 1977-09-01 |
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