AU3736171A - Communication system - Google Patents
Communication systemInfo
- Publication number
- AU3736171A AU3736171A AU37361/71A AU3736171A AU3736171A AU 3736171 A AU3736171 A AU 3736171A AU 37361/71 A AU37361/71 A AU 37361/71A AU 3736171 A AU3736171 A AU 3736171A AU 3736171 A AU3736171 A AU 3736171A
- Authority
- AU
- Australia
- Prior art keywords
- communication system
- communication
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive loop type
-
- H04B5/266—
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10603471A | 1971-01-13 | 1971-01-13 | |
USUS106034 | 1971-01-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
AU3736171A true AU3736171A (en) | 1973-06-28 |
Family
ID=22309114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU37361/71A Expired AU3736171A (en) | 1971-01-13 | 1971-12-24 | Communication system |
Country Status (8)
Country | Link |
---|---|
US (1) | US3740488A (en) |
AU (1) | AU3736171A (en) |
BE (1) | BE777931A (en) |
CA (1) | CA941308A (en) |
DE (1) | DE2200784A1 (en) |
FR (1) | FR2121778B1 (en) |
GB (1) | GB1382257A (en) |
ZA (1) | ZA718534B (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2543766B1 (en) * | 1983-03-28 | 1985-07-19 | Inst Francais Du Petrole | METHOD OF TRANSMITTING A SIGNAL WITHOUT AN ELECTRICAL LINK THROUGH A CONDUCTIVE WALL, FOR example THE SHELL OF A VESSEL, AND DEVICE FOR IMPLEMENTING SAME |
US4652857A (en) * | 1983-04-29 | 1987-03-24 | Meiksin Zvi H | Method and apparatus for transmitting wide-bandwidth frequency signals from mines and other power restricted environments |
GB2163029B (en) * | 1984-08-06 | 1987-11-18 | Peter James Raynor | Inductive communication system |
GB8530772D0 (en) * | 1985-12-13 | 1986-01-22 | Gradwell Paul Stephen | Communication system |
US5003576A (en) * | 1987-07-24 | 1991-03-26 | Richard J. Helferich | Analog/digital voice storage cellular telephone |
US4905003A (en) * | 1987-07-24 | 1990-02-27 | Richard J. Helferich | Analog/digital data storage system |
USRE37618E1 (en) * | 1987-07-24 | 2002-04-02 | Richard J. Helferich | Analog/digital data storage system |
US4864301A (en) * | 1987-07-24 | 1989-09-05 | Richard J. Helferich | Variable speed transmission recording and retrieval of data |
USRE34976E (en) * | 1987-07-24 | 1995-06-20 | Richard J. Helferich | Analog/digital voice storage cellular telephone |
CA1311527C (en) * | 1988-05-02 | 1992-12-15 | Kenneth E. Hjelmstad | Electromagnetic fire warning system for underground mines |
CA2646299C (en) | 2006-04-28 | 2014-12-02 | Orica Explosives Technology Pty Ltd | Methods of controlling components of blasting apparatuses, blasting apparatuses, and components thereof |
ES2330286B1 (en) * | 2007-07-26 | 2010-09-21 | Universidad De Zaragoza | METHOD AND DEVICE FOR TRANSMISSION AND AUDIO RECEPTION FOR BIDIRECTIONAL COMMUNICATIONS BY CURRENT INJECTION. |
US8270912B2 (en) * | 2007-12-12 | 2012-09-18 | Broadcom Corporation | Method and system for a transformer in an integrated circuit package |
US8198714B2 (en) * | 2008-03-28 | 2012-06-12 | Broadcom Corporation | Method and system for configuring a transformer embedded in a multi-layer integrated circuit (IC) package |
CN102598551B (en) * | 2009-06-03 | 2016-06-08 | 马歇尔无线电遥测股份有限公司 | System and method for through the earth communication |
GB2563872B (en) * | 2017-06-28 | 2022-06-15 | Kirintec Ltd | Communications system |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2853557A (en) * | 1955-01-28 | 1958-09-23 | Dictograph Products Co Inc | Sound distribution system |
US2980793A (en) * | 1956-06-11 | 1961-04-18 | Electronic Safety Engineering | Restricted range radio transmitting system |
DE1015485B (en) * | 1956-07-21 | 1957-09-12 | Siemens Ag | Movable microphone arrangement with a microphone amplifier which, in particular, forms a structural unit with the microphone |
US3323063A (en) * | 1964-08-07 | 1967-05-30 | Theodore Granik | System for re-diffusion of received radio signals |
GB1031994A (en) * | 1965-01-22 | 1966-06-08 | John Davis & Son Derby Ltd | Improvements in inductive signalling systems for mines, tunnels and similar situations |
US3470474A (en) * | 1966-12-23 | 1969-09-30 | Donald E Bilger | Underground radio communication system for highways |
US3495209A (en) * | 1968-11-13 | 1970-02-10 | Marguerite Curtice | Underwater communications system |
-
1971
- 1971-01-13 US US00106034A patent/US3740488A/en not_active Expired - Lifetime
- 1971-10-19 CA CA125,475A patent/CA941308A/en not_active Expired
- 1971-12-21 ZA ZA718534A patent/ZA718534B/en unknown
- 1971-12-24 AU AU37361/71A patent/AU3736171A/en not_active Expired
- 1971-12-30 GB GB6070071A patent/GB1382257A/en not_active Expired
-
1972
- 1972-01-08 DE DE19722200784 patent/DE2200784A1/en active Pending
- 1972-01-12 FR FR7200918A patent/FR2121778B1/fr not_active Expired
- 1972-01-12 BE BE777931A patent/BE777931A/en unknown
Also Published As
Publication number | Publication date |
---|---|
CA941308A (en) | 1974-02-05 |
FR2121778B1 (en) | 1974-11-08 |
US3740488A (en) | 1973-06-19 |
GB1382257A (en) | 1975-01-29 |
ZA718534B (en) | 1972-09-27 |
BE777931A (en) | 1972-07-12 |
DE2200784A1 (en) | 1972-07-20 |
FR2121778A1 (en) | 1972-08-25 |
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