DE3771262D1 - RADIO WATCH WITH FERRITE ROD ANTENNA. - Google Patents

RADIO WATCH WITH FERRITE ROD ANTENNA.

Info

Publication number
DE3771262D1
DE3771262D1 DE8787105252T DE3771262T DE3771262D1 DE 3771262 D1 DE3771262 D1 DE 3771262D1 DE 8787105252 T DE8787105252 T DE 8787105252T DE 3771262 T DE3771262 T DE 3771262T DE 3771262 D1 DE3771262 D1 DE 3771262D1
Authority
DE
Germany
Prior art keywords
aerial
radio
radio receiver
main
ferrite rod
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 - Fee Related
Application number
DE8787105252T
Other languages
German (de)
Inventor
Juergen Allgaier
Arthur Kopf
Wolfgang Ganter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Junghans Uhren GmbH
Original Assignee
Junghans Uhren GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Junghans Uhren GmbH filed Critical Junghans Uhren GmbH
Priority to DE8787105252T priority Critical patent/DE3771262D1/en
Application granted granted Critical
Publication of DE3771262D1 publication Critical patent/DE3771262D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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>
DE8787105252T 1986-04-19 1987-04-09 RADIO WATCH WITH FERRITE ROD ANTENNA. Expired - Fee Related DE3771262D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8787105252T DE3771262D1 (en) 1986-04-19 1987-04-09 RADIO WATCH WITH FERRITE ROD ANTENNA.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3613347 1986-04-19
DE8787105252T DE3771262D1 (en) 1986-04-19 1987-04-09 RADIO WATCH WITH FERRITE ROD ANTENNA.

Publications (1)

Publication Number Publication Date
DE3771262D1 true DE3771262D1 (en) 1991-08-14

Family

ID=6299123

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787105252T Expired - Fee Related DE3771262D1 (en) 1986-04-19 1987-04-09 RADIO WATCH WITH 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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8815967U1 (en) * 1988-05-27 1989-09-21 Junghans Uhren GmbH, 7230 Schramberg Antenna for a small radio clock
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, 78713 Schramberg Autonomous radio clock
DE9010813U1 (en) * 1990-07-20 1991-11-14 Junghans Uhren GmbH, 7230 Schramberg Autonomous radio clock
DE9111096U1 (en) * 1991-09-07 1993-01-07 Junghans Uhren GmbH, 7230 Schramberg Radio clock movement
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
EP0242717A3 (en) 1989-03-22
EP0242717A2 (en) 1987-10-28
HK79194A (en) 1994-08-19
ATE65135T1 (en) 1991-07-15
EP0242717B1 (en) 1991-07-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee