HK79194A - Radio controlled clock provided with a ferrite rod antenna - Google Patents
Radio controlled clock provided with a ferrite rod antennaInfo
- Publication number
- HK79194A HK79194A HK79194A HK79194A HK79194A HK 79194 A HK79194 A HK 79194A HK 79194 A HK79194 A HK 79194A HK 79194 A HK79194 A HK 79194A HK 79194 A HK79194 A HK 79194A
- Authority
- HK
- Hong Kong
- Prior art keywords
- aerial
- radio
- radio receiver
- main
- ferrite rod
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R20/00—Setting the time according to the time information carried or implied by the radio signal
- G04R20/08—Setting the time according to the time information carried or implied by the radio signal the radio signal being broadcast from a long-wave call sign, e.g. DCF77, JJY40, JJY60, MSF60 or WWVB
- G04R20/10—Tuning or receiving; Circuits therefor
-
- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R60/00—Constructional details
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Support Of Aerials (AREA)
Abstract
A radio clock (11), in particular one designed for use in homes, should be designed so that even under unfavourable radio reception conditions or random conditions according to the position of installation, it will ensure decoding of the received time data. For this purpose it is proposed that the radio receiver be fed from a ferrite rod main aerial (21), the original directional characteristic of which is damped towards an all-round receiving characteristic by inductive coupling of a balancing aerial (22) also having a tuned aerial circuit, but which is not connected to the radio receiver (14). If, on the other hand, (instead of this or additionally) provision is made for switching between main aerials (21) with different space orientation and each having its own tuned aerial circuit (17), the aerial circuits (17) of the (main) aerial (21) temporarily not connected to the radio receiver (14) are short-circuited or opened in order to prevent oscillatory effects. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3613347 | 1986-04-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
HK79194A true HK79194A (en) | 1994-08-19 |
Family
ID=6299123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK79194A HK79194A (en) | 1986-04-19 | 1994-08-11 | Radio controlled clock provided with a ferrite rod antenna |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0242717B1 (en) |
AT (1) | ATE65135T1 (en) |
DE (1) | DE3771262D1 (en) |
HK (1) | HK79194A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8815967U1 (en) * | 1988-05-27 | 1989-09-21 | Junghans Uhren Gmbh, 7230 Schramberg, De | |
DE3837148A1 (en) * | 1988-11-02 | 1990-05-03 | Massimo A Casalegno | Omnidirectional antenna arrangement for time signal receivers |
DE9000899U1 (en) * | 1990-01-27 | 1991-05-23 | Junghans Uhren Gmbh, 7230 Schramberg, De | |
DE9010813U1 (en) * | 1990-07-20 | 1991-11-14 | Junghans Uhren Gmbh, 7230 Schramberg, De | |
DE9111096U1 (en) * | 1991-09-07 | 1993-01-07 | Junghans Uhren Gmbh, 7230 Schramberg, De | |
FR2748332B1 (en) * | 1996-05-02 | 1998-07-03 | Reyser Paul | RECEIVING ANTENNA SYSTEM FOR TIME SIGNALS |
US8487479B2 (en) * | 2008-02-24 | 2013-07-16 | Qualcomm Incorporated | Ferrite antennas for wireless power transfer |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4155091A (en) * | 1977-09-12 | 1979-05-15 | Iec Electronics Corporation | Compact omnidirectional antenna array |
DE3101406A1 (en) * | 1981-01-17 | 1983-01-05 | Wolfgang Dr.-Ing. 6101 Groß-Bieberau Hilberg | Automatic radio clock adjustment |
FR2558063B1 (en) * | 1984-01-18 | 1987-02-20 | Hospal Ind | ARTIFICIAL KIDNEY WITH SINGLE NEEDLE |
DE8432848U1 (en) * | 1984-11-09 | 1985-05-23 | Gebrüder Junghans GmbH, 7230 Schramberg | Radio clock with ferrite rod antenna |
-
1987
- 1987-04-09 DE DE8787105252T patent/DE3771262D1/en not_active Expired - Fee Related
- 1987-04-09 EP EP87105252A patent/EP0242717B1/en not_active Expired - Lifetime
- 1987-04-09 AT AT87105252T patent/ATE65135T1/en not_active IP Right Cessation
-
1994
- 1994-08-11 HK HK79194A patent/HK79194A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE65135T1 (en) | 1991-07-15 |
EP0242717B1 (en) | 1991-07-10 |
EP0242717A2 (en) | 1987-10-28 |
EP0242717A3 (en) | 1989-03-22 |
DE3771262D1 (en) | 1991-08-14 |
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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) |