About 25 results
https://drivepatents.com/patents/1016046 · 2 Feb 2011
In a system comprising one or more reader devices and a plurality of wirelessly powered communication devices, the reader device has a transceiver to transmit a wireless signals to scan proximate wirelessly powered communication devices. The reader device ...
https://drivepatents.com/patents/1068316 · 12 Apr 2006
A circuit board for an electrical device, the circuit board having: at least one coil for receiving a magnetic field from a source remote from the circuit board and generating an alternating electrical field therefrom, the coil being defined by conductive ...
https://drivepatents.com/patents/1071391 · 28 Dec 2005
An arrangement for use with a mobile communications device, the arrangement comprising: a flexible magnetisable element (1); and a power supply unit comprising a first electrically conductive coil (3); wherein the magnetisable element is capable of receivi...
https://drivepatents.com/patents/1071354 · 28 Dec 2005
A power supply is formed from a number of fuel cell elements (21, 22, 23; 31; 41) connected to a switch (SW1) to enable the number of elements operational in a fuel cell stack to be varied in order to sustain output voltage despite variations in the output...
https://drivepatents.com/patents/1077289 · 8 Jun 2005
The device has a memory unit (16), a central computing and control unit (10) and a display (14) and/or speech output unit (15) for outputting the traffic messages. The central computing and control unit has an arrangement for sorting the traffic messages b...
https://drivepatents.com/patents/1080961 · 12 Jan 2005
A first transceiver can position itself by forming an ad hoc network of transceivers which assist the first transceiver in acquiring its position. A dedicated infrastructure such as GPS satellites is not required. The first transceiver, once it has acquire...
https://drivepatents.com/patents/1096024 · 14 May 2003
The present invention describes a method to calibrate an angular measurement device using an acceleration measurement device. The angular rate measurement device includes at least one angular measurement sensor and is able to distinguish the direction and ...
https://drivepatents.com/patents/1096272 · 7 May 2003
A battery pack for use with a cellular telephone device includes a flat battery cell assembly encased by a resin using low temperature molding techniques or injection molding techniques under low pressure. An interface assembly cap provides an electrical c...
https://drivepatents.com/patents/1098098 · 26 Feb 2003
The invention involves a hands-free device (16) and method of use with a mobile phone (25) and a vehicle seat headrest support structure (12,13). The hands-free device (16) includes a speaker (22) and a microphone (26) for use in combination with a connect...
https://drivepatents.com/patents/1099337 · 2 Jan 2003
A car hands-free unit (HFU 140) with a Low-Power RadioFrequency (LPRF) module 141 (typically a Bluetooth module) configured to receive an identifier 134 from a car key 133. Different drivers are provided with different car keys 133. When receiving the iden...