HK97489A - Method and apparatus for measuring the strength of a radio frequency signal - Google Patents
Method and apparatus for measuring the strength of a radio frequency signalInfo
- Publication number
- HK97489A HK97489A HK974/89A HK97489A HK97489A HK 97489 A HK97489 A HK 97489A HK 974/89 A HK974/89 A HK 974/89A HK 97489 A HK97489 A HK 97489A HK 97489 A HK97489 A HK 97489A
- Authority
- HK
- Hong Kong
- Prior art keywords
- signal
- strength
- signal strength
- receiver
- measuring
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000005562 fading Methods 0.000 abstract 2
- 230000001413 cellular effect Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
- H04B7/0808—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching comparing all antennas before reception
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Circuits Of Receivers In General (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US40512382A | 1982-08-03 | 1982-08-03 | |
PCT/US1983/001180 WO1984000653A1 (en) | 1982-08-03 | 1983-08-02 | Method and apparatus for measuring the strength of a radio frequency signal |
Publications (1)
Publication Number | Publication Date |
---|---|
HK97489A true HK97489A (en) | 1989-12-15 |
Family
ID=23602370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK974/89A HK97489A (en) | 1982-08-03 | 1989-12-07 | Method and apparatus for measuring the strength of a radio frequency signal |
Country Status (15)
Country | Link |
---|---|
EP (1) | EP0114890B1 (es) |
JP (1) | JPS59501530A (es) |
KR (1) | KR920001176B1 (es) |
AT (1) | ATE26052T1 (es) |
AU (1) | AU561186B2 (es) |
CA (1) | CA1209210A (es) |
DE (1) | DE3370422D1 (es) |
DK (1) | DK163700C (es) |
FI (1) | FI75958C (es) |
HK (1) | HK97489A (es) |
IL (1) | IL68987A (es) |
MX (1) | MX153718A (es) |
NO (1) | NO161890C (es) |
SG (1) | SG57689G (es) |
WO (1) | WO1984000653A1 (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2253971B (en) * | 1984-10-30 | 1993-02-03 | Secr Defence | Improvements in or relating to ionospheric sounding |
DE3508285C1 (de) * | 1985-03-08 | 1992-03-26 | Siemens Ag | Funkueberleitstelle fuer ein Mobilfunknetz |
JPH0278331A (ja) * | 1988-09-14 | 1990-03-19 | Nec Corp | 移動通信用送受信装置 |
EP0388163B1 (en) * | 1989-03-15 | 1995-12-27 | Nec Corporation | Interference detection apparatus for use in digital mobile communications system |
BR9105908A (pt) * | 1990-10-01 | 1992-11-03 | Motorola Inc | Aparelho de transferencia de dados,sistema de radiotelefone digital e processo de responder a um evento de disparo simples |
US5396224A (en) * | 1991-11-22 | 1995-03-07 | Hewlett-Packard Company | Telemetered patient location system and method |
CN108964738B (zh) * | 2018-04-11 | 2021-09-28 | 莫志刚 | 一种用于轨道交通车地无线系统的车载天线系统 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1508349A (fr) * | 1966-11-24 | 1968-01-05 | Lannionaise D Electronique Soc | Dispositif automatique de commutation d'antenne |
US3564287A (en) * | 1968-07-25 | 1971-02-16 | Us Navy | Maximum seeking zero order hold circuit |
US3860872A (en) * | 1970-02-05 | 1975-01-14 | Pye Ltd | Multiple receiver selection system |
US3896375A (en) * | 1974-02-06 | 1975-07-22 | United Kingdom Government | System for monitoring and indicating peak values of a time varying signal |
US3973197A (en) * | 1974-07-22 | 1976-08-03 | Koehring Company | Peak detector |
FR2319905A1 (fr) * | 1975-08-01 | 1977-02-25 | Thomson Csf | Dispositif de compression de bande et systeme radar comportant un tel dispositif |
US4069455A (en) * | 1976-11-11 | 1978-01-17 | General Electric Company | Arrangement for maintaining reception of a radio receiver on the stronger of two signals |
FR2379820A1 (fr) * | 1977-02-02 | 1978-09-01 | Cit Alcatel | Indicateur de puissance d'un signal |
US4183087A (en) * | 1978-03-07 | 1980-01-08 | Hughes Aircraft Company | Peak deviation sampling |
JPS5630654A (en) * | 1979-08-21 | 1981-03-27 | Toyo Electric Mfg Co Ltd | Peak value detection system |
US4295099A (en) * | 1979-09-05 | 1981-10-13 | Honeywell Inc. | Peak detector |
-
1983
- 1983-06-14 IL IL68987A patent/IL68987A/xx not_active IP Right Cessation
- 1983-07-27 MX MX198179A patent/MX153718A/es unknown
- 1983-08-02 DE DE8383902772T patent/DE3370422D1/de not_active Expired
- 1983-08-02 WO PCT/US1983/001180 patent/WO1984000653A1/en active IP Right Grant
- 1983-08-02 JP JP83502829A patent/JPS59501530A/ja active Pending
- 1983-08-02 AU AU19424/83A patent/AU561186B2/en not_active Ceased
- 1983-08-02 AT AT83902772T patent/ATE26052T1/de not_active IP Right Cessation
- 1983-08-02 CA CA000433685A patent/CA1209210A/en not_active Expired
- 1983-08-02 EP EP83902772A patent/EP0114890B1/en not_active Expired
- 1983-08-03 KR KR1019830003634A patent/KR920001176B1/ko not_active IP Right Cessation
-
1984
- 1984-03-30 FI FI841285A patent/FI75958C/fi not_active IP Right Cessation
- 1984-04-02 NO NO84841285A patent/NO161890C/no not_active IP Right Cessation
- 1984-04-03 DK DK176784A patent/DK163700C/da not_active IP Right Cessation
-
1989
- 1989-08-25 SG SG576/89A patent/SG57689G/en unknown
- 1989-12-07 HK HK974/89A patent/HK97489A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0114890B1 (en) | 1987-03-18 |
FI75958B (fi) | 1988-04-29 |
EP0114890A4 (en) | 1984-10-11 |
DE3370422D1 (en) | 1987-04-23 |
AU1942483A (en) | 1984-02-23 |
FI75958C (fi) | 1988-08-08 |
DK163700B (da) | 1992-03-23 |
NO161890B (no) | 1989-06-26 |
JPS59501530A (ja) | 1984-08-23 |
AU561186B2 (en) | 1987-04-30 |
ATE26052T1 (de) | 1987-04-15 |
MX153718A (es) | 1986-12-22 |
WO1984000653A1 (en) | 1984-02-16 |
KR920001176B1 (ko) | 1992-02-06 |
DK163700C (da) | 1992-08-10 |
FI841285A0 (fi) | 1984-03-30 |
IL68987A0 (en) | 1983-10-31 |
DK176784A (da) | 1984-04-03 |
NO841285L (no) | 1984-04-02 |
DK176784D0 (da) | 1984-04-03 |
IL68987A (en) | 1986-12-31 |
CA1209210A (en) | 1986-08-05 |
KR840006078A (ko) | 1984-11-21 |
SG57689G (en) | 1989-12-29 |
FI841285A (fi) | 1984-03-30 |
NO161890C (no) | 1989-10-04 |
EP0114890A1 (en) | 1984-08-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |