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US 2004/0137937 A1Published application
Wireless data communication device and communication system including such a device
AssigneeAsulab S.A.
InventorYves Oesch
Life of this patent
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AssigneeAsulab S.A.
InventorYves Oesch
Estimating the term…
The wireless data communication device (1) is mounted in a portable object, such as a wristwatch. The device includes an oscillator circuit (6), which produces high frequency signals (SH), and a signal processing unit (7), connected to the oscillator circuit. The connection structure of one part of the oscillator circuit (14, 15), which produces the high frequency signals, is arranged to act as antenna for the transmission of data by means of stray signals (SP) transmitted by the connection structure. The processing unit provides a control signal (CC) to the oscillator circuit depending upon the data to be transmitted by means of the stray signals by the connection structure. An amplitude modulation or a frequency modulation can be used for the transmission of data by means of the stray signals.
A wireless data communication device particularly for a portable object, the device including an oscillator circuit, which produces high frequency signals, and a signal processing unit connected to the oscillator circuit, wherein a connection structure of one part of the oscillator circuit, which produces the high frequency signals, is arranged to act as antenna for the transmission of data by means of stray signals transmitted by the connection structure, and wherein the processing unit provides at least one control signal to the oscillator circuit, said control signal depending upon the data to be transmitted by means of the stray signals.
Dependencies are inferred from the claim text.