Nokia Corporation

Nokia Technologies Oy

Marko Karhiniemi

Jari Nousiainen

Juhani Tuovinen

Harald Kaaja

Heikki Kokkinen

Jani Maenpaa

Mika Kuoppala

Joonas Ryynanen

Tessa Ryynanen

Kari O Koivisto

Jani Mäenpää

Matti RYYNÄNEN

A sensor arrangement for an electronic device with user input means comprises a sensor. The sensor is adapted to generate an electric field in an area of the user input means and to enable a detection of a change in the electric field. The sensor arrangement further comprises a conductive web. The conductive web is arranged between the sensor and an external surface of the user input means, in order to concentrate the volume of the generated electrical field.

Sensor arrangement comprising a conductive layer

The disclosure relates to implementing different key types on a keypad or keyboard. The implementation can be enabled e.g. by an apparatus including a substrate () including a capacitive sensor element (), the capacitive sensor element having a first electrode () forming a first capacitor with an object touching or coming into proximity of the first electrode, wherein the capacitive sensor element is configured to generate a first signal responsive to the object touching or coming into proximity of the capacitive sensor element, a first capacitor circuit coupled to at least the first electrode, and a dome () configured to complete, responsive to the dome being depressed, an electric circuit including at least the first capacitor and the first capacitor circuit to form a second capacitor circuit, wherein the second capacitor circuit is configured to generate a second signal.

Keypad apparatus

Setting up and maintaining wireless communication connections with end user's terminals () on board a predictably moving vehicle () is shown with mechanisms for correcting for Doppler effects. A central device () within the vehicle () acts as a hub of a wireless network. There are a number of fixed transceivers (). A connection arrangement () connects the fixed transceivers () to an external packet-switched data network. The central device () within the vehicle () is a mobile router () equipped with routing capability (). The connection arrangement () includes a connection () between a number of fixed transceivers () and a fixed central device () The fixed central device () has routing capability (), and together with the mobile router () implement routing of packets between the packet-switched network and an end user's terminal ().

Method, system and arrangements for setting up and maintaining a WLAN connection within predictably moving vehicles

A touch member () comprises a touch surface () having at least two sensor electrodes (-) that are separated from each other on the touch surface (). Each of the sensor electrodes (-) have a certain signal level threshold with relation to activate/lock the touch member (). The touch surface (,) is divided into a first area and a second area each comprising at least one of the sensor electrodes (-). Upon touching the touch member () in an unlocked state, the at least two electrodes (-) are arranged to measure periodically a signal level received from each of the electrodes (-) to indicate a touch location, report periodically the touch location with respect to the first area of the touch surface (), and report the measured signal level of each of the electrodes (-) in the second area of the touch surface (). The controller () sends an instruction to select an operation state of the touch member () based on calculated touch location information of the reported touch location and compared signal level information of the reported measured signal level.

Touch button false activation suppression

The specification and drawings present a new apparatus and method for providing and using a uniform threshold for capacitive touch sensing in a user interface having a non-flat touch surface. The capacitive touch sensor can to provide a sensor signal using the uniform capacitance threshold level as a function of a location of an object (e.g., finger, stylus, etc.) on or near the non-flat touch surface of a user interface module using a substantially uniform distance between the non-flat touch surface and a capacitive touch sensor layer, and/or using a gradient of a dielectric constant of materials between the non-flat touch surface and the capacitive touch sensor layer according to a predetermined criterion.

Uniform threshold for capacitive sensing

A sensor includes a rectangular conductive sheet. Electrical connectors are connected at each corner of the sheet. A number of non-conductive features, e.g. apertures, are formed in this sheet. In one embodiment, V-shaped features extend from near the corners of the sheet towards the centre of the sheet and then turn towards an adjacent corner. Smaller V-shaped features reside in the area between the larger features and the closest edge of the sheet. In another embodiment, a spider web formation of conductive tracks or paths is provided. This provides hardware correction of pincushion error. It reduces or eliminates the need for software correction of pincushion error.

Growing community of inventors

Espoo, Finland

Marko Karhiniemi