FR2201506B1 - - Google Patents
Info
- Publication number
- FR2201506B1 FR2201506B1 FR7233929A FR7233929A FR2201506B1 FR 2201506 B1 FR2201506 B1 FR 2201506B1 FR 7233929 A FR7233929 A FR 7233929A FR 7233929 A FR7233929 A FR 7233929A FR 2201506 B1 FR2201506 B1 FR 2201506B1
- Authority
- FR
- France
- 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
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
- G08B3/1008—Personal calling arrangements or devices, i.e. paging systems
- G08B3/1016—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/04—Indicating or recording train identities
- B61L25/043—Indicating or recording train identities using inductive tags
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/28—Individual registration on entry or exit involving the use of a pass the pass enabling tracking or indicating presence
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7233929A FR2201506B1 (de) | 1972-09-25 | 1972-09-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7233929A FR2201506B1 (de) | 1972-09-25 | 1972-09-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2201506A1 FR2201506A1 (de) | 1974-04-26 |
FR2201506B1 true FR2201506B1 (de) | 1976-08-13 |
Family
ID=9104759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7233929A Expired FR2201506B1 (de) | 1972-09-25 | 1972-09-25 |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2201506B1 (de) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1280334B (de) * | 1966-05-28 | 1968-10-17 | Hagenuk Neufeldt Kuhnke Gmbh | Verfahren und Einrichtung zur UEbermittlung eines elektrischen Meldesignals von einem auf einer Wasserstrasse befindlichen Wasserfahrzeug an eine am Ufer errichtete Meldestation |
DE1762614A1 (de) * | 1968-07-19 | 1970-07-02 | Grimm Dr Ing Olaf | Induktive UEbertragungseinrichtung |
FR2092890A1 (de) * | 1970-06-29 | 1972-01-28 | Zephinie Gerard |
-
1972
- 1972-09-25 FR FR7233929A patent/FR2201506B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2201506A1 (de) | 1974-04-26 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |