NL87261C - - Google Patents
Info
- Publication number
- NL87261C NL87261C NL87261DA NL87261C NL 87261 C NL87261 C NL 87261C NL 87261D A NL87261D A NL 87261DA NL 87261 C NL87261 C NL 87261C
- Authority
- NL
- Netherlands
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Waveguide Aerials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS747532X | 1953-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL87261C true NL87261C (es) |
Family
ID=5455326
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL87261D NL87261C (es) | 1953-04-30 | ||
| NLAANVRAGE8104208,A NL187145B (nl) | 1953-04-30 | Inrichting voor het bewerken van de bovenlaag van de grond, in het bijzonder voor tuinen en parken. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE8104208,A NL187145B (nl) | 1953-04-30 | Inrichting voor het bewerken van de bovenlaag van de grond, in het bijzonder voor tuinen en parken. |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2872568A (es) |
| DE (1) | DE969473C (es) |
| GB (1) | GB747532A (es) |
| NL (2) | NL187145B (es) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3037113A (en) * | 1959-10-12 | 1962-05-29 | Motorola Inc | Control system |
| US3166711A (en) * | 1961-02-24 | 1965-01-19 | Agrelius Kelton Casper | Dual diversity switching unit |
| US3182263A (en) * | 1962-11-14 | 1965-05-04 | Gossard William Herbert | Diversity reception system with correction for long-term fluctuations in signal strength |
| US4255816A (en) * | 1978-09-15 | 1981-03-10 | Threshold Technology, Inc. | Receiving apparatus having a plurality of antennas |
| US4499606A (en) * | 1982-12-27 | 1985-02-12 | Sri International | Reception enhancement in mobile FM broadcast receivers and the like |
| US4566133A (en) * | 1982-12-27 | 1986-01-21 | Commtech International | Switched diversity method and apparatus for FM receivers |
| US4584709A (en) * | 1983-07-06 | 1986-04-22 | Motorola, Inc. | Homotropic antenna system for portable radio |
| US6079367A (en) * | 1997-10-10 | 2000-06-27 | Dogwatch, Inc. | Animal training apparatus and method |
| US10998730B1 (en) | 2019-04-26 | 2021-05-04 | NeoVolta, Inc. | Adaptive solar power battery storage system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE603350C (de) * | 1930-10-18 | 1934-09-27 | Lorenz Akt Ges C | Auswahlgeraet zur Beseitigung von Lautstaerkeschwankungen |
| US2037865A (en) * | 1933-01-19 | 1936-04-21 | American Telephone & Telegraph | Diversity reception system |
| US2059081A (en) * | 1933-10-31 | 1936-10-27 | Rca Corp | Diversity receiver |
| US2243118A (en) * | 1939-03-15 | 1941-05-27 | Rca Corp | Automatic antenna switching diversity system |
| US2447057A (en) * | 1943-05-06 | 1948-08-17 | Rca Corp | Diversity receiving system |
| US2414111A (en) * | 1944-03-22 | 1947-01-14 | Rca Corp | Diversity receiving system |
| US2495826A (en) * | 1946-09-18 | 1950-01-31 | Rca Corp | Locking and control circuit in a diversity telegraphy receiver |
| US2485576A (en) * | 1947-04-19 | 1949-10-25 | Fed Telecomm Lab Inc | Sector antenna switching |
| US2685643A (en) * | 1948-12-08 | 1954-08-03 | Fisk Bert | Dual-diversity receiving system |
| US2644885A (en) * | 1951-02-27 | 1953-07-07 | Rca Corp | Diversity gating system |
-
0
- NL NL87261D patent/NL87261C/xx active
- NL NLAANVRAGE8104208,A patent/NL187145B/xx unknown
-
1954
- 1954-04-20 GB GB11409/54A patent/GB747532A/en not_active Expired
- 1954-04-21 US US424697A patent/US2872568A/en not_active Expired - Lifetime
- 1954-04-23 DE DET9383A patent/DE969473C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE969473C (de) | 1958-06-04 |
| NL187145B (nl) | |
| GB747532A (en) | 1956-04-04 |
| US2872568A (en) | 1959-02-03 |