US4947179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna for a radio controlled timepiece
Assignee: Junghans Uhren GmbH
•
Filing: 1989-05-17
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Granted: 1990-08-07
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Expires: 2009-05-17
Abstract
Abstract A magnetic antenna for a radio receiver such as a radio timepiece can be installed under restricted spacial conditions in a small housing or used as an antenna for a radio wristwatch. The antenna includes a core extending through a coil. The core is made of flexible, high permeability material, so that a flexible connection with the watch is obtained. A multiple flat strip conductor integrated into a watch bracelet serves as the connection between the coil and the receiver. Instead of being flexible, the core may be rigid but pre-formed in a non-linear shape.
Inventors
- 👤 Wolfgang Ganter
- 👤 Arthur Kopf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:56
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/273; G; G04; G04R; G04R60/00; G04R60/04
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
44 words
An antenna for a small radio timepiece comprising a flexible core disposed within a coil, said core and coil embedded within a flexible enclosure, whereby the antenna can be bent into different configurations in a direction transversely of a longitudinal axis of the antenna.
Claim 2
Dependent Claim
44 words
An antenna for a small radio timepiece comprising a flexible core disposed within a coil, said core and coil embedded within a flexible enclosure, whereby the antenna can be bent into different configurations in a direction transversely of a longitudinal axis of the antenna.
Claim 3
Dependent Claim
24 words
Antenna according to claim 1, wherein said enclosure comprises at least a portion of a bracelet adapted to be worn around a user's wrist.
Claim 4
Dependent Claim
17 words
Antenna according to claim 1 including two bracelet segments attached to the ends of a said enclosure.
Claim 5
Dependent Claim
25 words
Antenna according to claim 3, wherein said enclosure includes electric plug-in connectors at its opposite ends for attachment to electric conductors in said bracelet segments.
Claim 6
Dependent Claim
17 words
Antenna according to claim 1, wherein said core comprises a soft ferrite powder encased in said enclosure.
Claim 7
Dependent Claim
21 words
Antenna according to claim 1, wherein said core comprises a stack of thin strips formed of a highly permeable amorphous metal.
Claim 8
Dependent Claim
27 words
Antenna according to claim 6, wherein a space is provided between said enclosure and opposite ends of said strips to accommodate relative longitudinal displacement of said strips.
Claim 9
Dependent Claim
50 words
Antenna according to claim 1, wherein said core comprises a plurality of thin flexible strips formed of a highly permeable amorphous metal, the ends of at least some of said strips being seated in curved recesses formed in adjacently disposed ones of said strips to facilitate bending of said core.
Claim 10
Dependent Claim
16 words
Antenna according to claim 6 including insulation strips disposed between adjacent ones of said metal strips.
Claim 11
Dependent Claim
15 words
Antenna according to claim 9, wherein said metal strips define electrodes of a resonance capacitor.
Claim 12
Dependent Claim
13 words
Antenna according to claim 9, wherein said metal strips define a tuning capacitor.
Claim 13
Dependent Claim
34 words
Antenna according to claim 1 including a tuning capacitor for compensating for circuit frequency variation due to mechanically induced permeability variation of the core, said capacitor being carried by a portion of said core.
Claim 14
Dependent Claim
37 words
Antenna according to claim 1 including a watch case containing a radio receiver, a bracelet connected to said watch case, a multilayer flat conductor mounted to said bracelet, said conductor being electrically connected to said radio receiver.
Claim 15
Dependent Claim
26 words
Antenna according to claim 13, wherein one end of said conductor is fastened to the core adjacent the coil, and another end having electrical plug-in means.
Claim 16
Dependent Claim
34 words
Antenna according to claim 13, wherein said conductor is disposed in said enclosure, an end of said enclosure being clamped to said case in a direction transversely to a longitudinal direction of said conductor.
Claim 17
Dependent Claim
20 words
Antenna according to claim 13, wherein said conductor comprises a conducting line sandwiched between and insulated from two conducting films.
Claim 18
Dependent Claim
29 words
An antenna for a small radio timepiece comprising a rigid core pre-formed in a non-linear shape and disposed within a coil, said core and coil embedded within an enclosure.
Claim 19
Dependent Claim
29 words
An antenna for a small radio timepiece comprising a rigid core pre-formed in a non-linear shape and disposed within a coil, said core and coil embedded within an enclosure.
Claim 20
Dependent Claim
24 words
Antenna according to claim 17, wherein said enclosure comprises at least a portion of a bracelet adapted to be worn about a user's wrist.
Claim 21
Dependent Claim
16 words
Antenna according to claim 17 including two bracelet segments attached to opposite ends of said enclosure.
Claim 22
Dependent Claim
25 words
Antenna according to claim 19, wherein said enclosure includes electric plug-in connectors at its opposite ends for attachment to electric conductors in said bracelet segments.
Claim 23
Dependent Claim
40 words
Antenna according to claim 17 including a watch case containing a radio receiver, a bracelet connected to said watch case, a multilayer flat conductor mounted to said bracelet, said conductor being electrically connected to said coil and said radio receiver.
Claim 24
Dependent Claim
31 words
Antenna according to claim 21, wherein one end of said conductor is fastened to the core adjacent the coil, and another end having electrical plug-in means connected to said radio receiver.
Claim 25
Dependent Claim
34 words
Antenna according to claim 21, wherein said conductor is disposed in said enclosure, an end of said enclosure being clamped to said case in a direction transversely to a longitudinal direction of said conductor.
Claim 26
Dependent Claim
20 words
Antenna according to claim 21, wherein said conductor comprises a conducting line sandwiched between and insulated from two conducting films.
References Cited (Backward Citations)
JPS5853231A
Cited
EP0100639A2
Cited
DE3516810A1
Cited
EP0242717A2
Cited
US4769656A
Cited
US4754285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |