JPH0117623B2 - - Google Patents
Info
- Publication number
- JPH0117623B2 JPH0117623B2 JP58093893A JP9389383A JPH0117623B2 JP H0117623 B2 JPH0117623 B2 JP H0117623B2 JP 58093893 A JP58093893 A JP 58093893A JP 9389383 A JP9389383 A JP 9389383A JP H0117623 B2 JPH0117623 B2 JP H0117623B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- transmission
- transmitters
- frequency
- links
- 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 claims description 50
- 238000004891 communication Methods 0.000 claims description 32
- 239000011159 matrix material Substances 0.000 claims description 16
- 230000002457 bidirectional effect Effects 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 20
- 238000012545 processing Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000015654 memory Effects 0.000 description 3
- 238000013475 authorization Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000036962 time dependent Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
- H04B7/2634—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] for channel frequency control
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8209259A FR2527872A1 (fr) | 1982-05-27 | 1982-05-27 | Station fixe d'un systeme de radiocommunications a sauts de frequence, a emetteurs banalises |
FR8209259 | 1982-05-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58219846A JPS58219846A (ja) | 1983-12-21 |
JPH0117623B2 true JPH0117623B2 (OSRAM) | 1989-03-31 |
Family
ID=9274401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58093893A Granted JPS58219846A (ja) | 1982-05-27 | 1983-05-27 | 周波数ホツピング無線通信システム |
Country Status (8)
Country | Link |
---|---|
US (1) | US4573209A (OSRAM) |
EP (1) | EP0097541B1 (OSRAM) |
JP (1) | JPS58219846A (OSRAM) |
CA (1) | CA1213644A (OSRAM) |
DE (1) | DE3363149D1 (OSRAM) |
DK (1) | DK233883A (OSRAM) |
FR (1) | FR2527872A1 (OSRAM) |
GR (1) | GR77475B (OSRAM) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3673631D1 (de) * | 1986-02-15 | 1990-09-27 | Ant Nachrichtentech | Digitales mobilfunksystem. |
US4856113A (en) * | 1987-04-30 | 1989-08-15 | Sekur S.P.A. | Protective garment for operation in contaminated areas |
US4811380A (en) * | 1988-01-29 | 1989-03-07 | Motorola, Inc. | Cellular radiotelephone system with dropped call protection |
US5117501A (en) * | 1988-08-08 | 1992-05-26 | General Electric Company | Dynamic regrouping in a trunked radio communications system |
US5077828A (en) * | 1988-09-01 | 1991-12-31 | General Electric Company | RF channel expansion in a trunked radio communications system |
FR2649560B1 (fr) * | 1989-06-12 | 1994-08-05 | Matra Communication | Base de transmission pour un dispositif de communication radiotelephonique |
US5081641A (en) * | 1990-02-06 | 1992-01-14 | Motorola, Inc. | Interconnecting and processing system for facilitating frequency hopping |
DE4033107C1 (en) * | 1990-10-18 | 1991-11-21 | Telefunken Systemtechnik Gmbh, 7900 Ulm, De | Establishing connections between nodes of multi-hop radio network - using at least one stored routing table to establish connection between two spaced nodes via number of successive hops |
EP0968578A2 (de) | 1997-03-19 | 2000-01-05 | Siemens Aktiengesellschaft | Verfahren und vermittlungssystem zur herstellung von fernmeldeverbindungen |
CN108683759B (zh) * | 2018-05-08 | 2020-09-15 | 山东比特智能科技股份有限公司 | 双向同步通信的一种两线实现装置及采用该装置实现双向同步通信的方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE954754C (de) * | 1944-03-28 | 1956-12-20 | Walther Staubtechnik G M B H | Entstaubungsanlage mit einer Vielzahl von parallelgeschalteten Zyklonen |
US2941038A (en) * | 1953-10-26 | 1960-06-14 | Iwatsu Electric Co Ltd | Multiplex telephone system |
US3424868A (en) * | 1964-10-07 | 1969-01-28 | Bell Telephone Labor Inc | Combined time division and space division switching system using pulse coded signals |
DE1954754C3 (de) * | 1969-10-30 | 1975-08-07 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Mit Verschlüsselung der zu übertragenden Nachrichtensignale arbeitendes Funktelefoniesystem |
-
1982
- 1982-05-27 FR FR8209259A patent/FR2527872A1/fr active Granted
-
1983
- 1983-05-20 US US06/496,561 patent/US4573209A/en not_active Expired - Fee Related
- 1983-05-20 EP EP83401018A patent/EP0097541B1/fr not_active Expired
- 1983-05-20 DE DE8383401018T patent/DE3363149D1/de not_active Expired
- 1983-05-24 CA CA000428762A patent/CA1213644A/en not_active Expired
- 1983-05-25 DK DK233883A patent/DK233883A/da not_active Application Discontinuation
- 1983-05-27 GR GR71482A patent/GR77475B/el unknown
- 1983-05-27 JP JP58093893A patent/JPS58219846A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
DK233883A (da) | 1983-11-28 |
EP0097541A1 (fr) | 1984-01-04 |
US4573209A (en) | 1986-02-25 |
GR77475B (OSRAM) | 1984-09-24 |
JPS58219846A (ja) | 1983-12-21 |
DK233883D0 (da) | 1983-05-25 |
DE3363149D1 (en) | 1986-05-28 |
CA1213644A (en) | 1986-11-04 |
EP0097541B1 (fr) | 1986-04-23 |
FR2527872A1 (fr) | 1983-12-02 |
FR2527872B1 (OSRAM) | 1984-12-14 |
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