JPS5620739B1 - - Google Patents
Info
- Publication number
- JPS5620739B1 JPS5620739B1 JP1251872A JP1251872A JPS5620739B1 JP S5620739 B1 JPS5620739 B1 JP S5620739B1 JP 1251872 A JP1251872 A JP 1251872A JP 1251872 A JP1251872 A JP 1251872A JP S5620739 B1 JPS5620739 B1 JP S5620739B1
- 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
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
- H04N7/102—Circuits therefor, e.g. noise reducers, equalisers, amplifiers
-
- 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)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/112,714 US3978282A (en) | 1971-02-04 | 1971-02-04 | Apparatus and method for measuring the transmission characteristics of a network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4718206A JPS4718206A (https=) | 1972-09-13 |
| JPS5620739B1 true JPS5620739B1 (https=) | 1981-05-15 |
Family
ID=22345477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1251872A Pending JPS5620739B1 (https=) | 1971-02-04 | 1972-02-03 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3978282A (https=) |
| JP (1) | JPS5620739B1 (https=) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4025854A (en) * | 1975-09-26 | 1977-05-24 | Gte Automatic Electric Laboratories Incorporated | In-service technique for measuring transmission characteristics of a microwave radio link |
| JPS5465154A (en) * | 1977-11-04 | 1979-05-25 | Kawasaki Steel Co | Production of reduced iron powde with high bulk density and good compressability |
| GB1604678A (en) * | 1978-05-30 | 1981-12-16 | Indep Broadcasting Authority | Television systems |
| US4700222A (en) * | 1985-05-30 | 1987-10-13 | Gill Industries, Incorporated | Apparatus and method of testing the frequency response of a cable television system |
| US4797735A (en) * | 1985-07-04 | 1989-01-10 | Matsushita Electric Industrial Co., Ltd. | Distortion surveillance apparatus for television signal transmission system |
| JPH0653887B2 (ja) * | 1986-11-26 | 1994-07-20 | 株式会社神戸製鋼所 | 高圧縮性水アトマイズ鋼粉の製造方法 |
| US5713982A (en) | 1995-12-13 | 1998-02-03 | Clark; Donald W. | Iron powder and method of producing such |
| US5977773A (en) * | 1997-08-15 | 1999-11-02 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Non-intrusive impedance-based cable tester |
| US5894223A (en) * | 1997-09-24 | 1999-04-13 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Non-intrusive cable tester |
| US6091447A (en) * | 1997-10-01 | 2000-07-18 | Gershfeld; Jack | Methods of evaluating performance of video systems and compensating for degradation of video signals |
| US6278485B1 (en) | 1997-12-01 | 2001-08-21 | Wavetek Corporation | Preconfigured CATV sweep testing method and apparatus |
| US6978476B2 (en) * | 2000-05-16 | 2005-12-20 | Comsonics | Device and method of determining location of signal ingress |
| SE0100454D0 (sv) * | 2001-02-13 | 2001-02-13 | Ericsson Telefon Ab L M | Effektdetektor med utökat detekteringsområde |
| US6631339B2 (en) * | 2001-04-12 | 2003-10-07 | Intel Corporation | Data path evaluation system and method |
| US7548068B2 (en) * | 2004-11-30 | 2009-06-16 | Intelliserv International Holding, Ltd. | System for testing properties of a network |
| US8327409B2 (en) * | 2008-04-25 | 2012-12-04 | Acterna Llc | Testing CATV networks with direct sequence spread spectrum signals |
| PL227094B1 (pl) * | 2010-04-29 | 2017-10-31 | Kabelkom Spółka Z Ograniczoną Odpowiedzialnością | Sposób znakowania sygnałów uzywanych dowykrywania ipomiaru wycieków wsieciach telewizji kablowej oraz urzadzenie dowykrywania i/lub pomiaru wycieków znakowanych tym sposobem |
| WO2013003301A1 (en) * | 2011-06-27 | 2013-01-03 | Trilithic, Inc. | Method for detecting leakage in digitally modulated systems |
| CN106162478B (zh) * | 2016-08-16 | 2019-08-06 | 北京小米移动软件有限公司 | 麦克风优选方法及装置 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5045088A (https=) * | 1973-08-27 | 1975-04-22 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1590362A (en) * | 1924-04-24 | 1926-06-29 | Western Electric Co | Transmission regulation |
| US2588730A (en) * | 1947-05-02 | 1952-03-11 | Wayne R Johnson | Method and apparatus for frequency response measurement |
| US2685062A (en) * | 1950-07-18 | 1954-07-27 | Rca Corp | Signal transmission analyzing system |
| US2945178A (en) * | 1956-12-13 | 1960-07-12 | Bell Telephone Labor Inc | Television transmission evaluator |
| DE1462183B2 (de) * | 1964-09-11 | 1969-09-25 | Nippon Electric Company Ltd., Tokio | Mehrfachfrequenz-Satellitennachrichtenübertragungssystem |
| US3360729A (en) * | 1965-08-27 | 1967-12-26 | Anthony C Palatinus | Intermodulation distortion test set for independent sideband transmitters |
| AT303845B (de) * | 1969-10-30 | 1972-12-11 | Uzinele Elektronica | Verfahren und Schaltungsanordnung für die Erzeugung von Frequenzmarken |
| US3651403A (en) * | 1970-05-18 | 1972-03-21 | Jerrold Electronics Corp | Simultaneous sweep testing system for catv |
-
1971
- 1971-02-04 US US05/112,714 patent/US3978282A/en not_active Expired - Lifetime
-
1972
- 1972-02-03 JP JP1251872A patent/JPS5620739B1/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5045088A (https=) * | 1973-08-27 | 1975-04-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4718206A (https=) | 1972-09-13 |
| US3978282A (en) | 1976-08-31 |