Wristwatch with capacitive coupling
First Claim
1. A wristwatch including:
- a case provided with at least a first electric conductor arranged in the vicinity of an outer surface of the case and an electric circuit connected to said first electric conductor, a wristband including at least a second electric conductor arranged in the vicinity of an outer surface of the wristband, portions of said first and second conductors being at a distance from and opposite to each other to define two electrodes of a coupling capacitor and to form an electric connection by capacitive coupling, wherein said second electric conductor is arranged to have a shape suited to said outer surface of the wristband opposite to said first electric conductor, and wherein the distances between said electrodes of the coupling capacitor and opposite surfaces of each electrode are the same once said wristband is mounted onto said case in order to assure a constant capacitance value of the coupling capacitor, whatever the angular position of said wristband with respect to said case.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention concerns a wristwatch (30) including a case (32) provided with a first electric conductor (50) and an electric circuit (36) connected to said first electric conductor, and a wristband (34) including a second electric conductor (42). This wristwatch is characterised in that the first and second conductors are arranged to form an electric connection without any mechanical contact and, more precisely, by capacitive coupling. One advantage of such an arrangement of the wristwatch is that it achieves an electric connection without mechanical coupling, i.e. an electric connection which does not require any additional external material arrangement other than the conventional articulation between the wristband and the case.
38 Citations
8 Claims
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1. A wristwatch including:
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a case provided with at least a first electric conductor arranged in the vicinity of an outer surface of the case and an electric circuit connected to said first electric conductor, a wristband including at least a second electric conductor arranged in the vicinity of an outer surface of the wristband, portions of said first and second conductors being at a distance from and opposite to each other to define two electrodes of a coupling capacitor and to form an electric connection by capacitive coupling, wherein said second electric conductor is arranged to have a shape suited to said outer surface of the wristband opposite to said first electric conductor, and wherein the distances between said electrodes of the coupling capacitor and opposite surfaces of each electrode are the same once said wristband is mounted onto said case in order to assure a constant capacitance value of the coupling capacitor, whatever the angular position of said wristband with respect to said case. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification