Koninklijke Philips Corporation N.v.

Zytronic Displays Limited

Philips Lighting Holding B.v.

Philip Andrew Rudland

Nicoll Burleigh Shepherd

Peter J Lanigan

Robin John Blackwell

Neil A Hankin

Philip Anthony Jamieson

Andrew Morrison

Stephen Michael Ormston

Christopher Graham John Caldwell

Immo Benjes

Maulin Dahyabhai Patel

Bas Driesen

Eduard Gerhard Zondag

Ian A Marsden

Phil A Jamieson

David M Avery

Adam C R Sexton

Peter Stephen May

A multi-touch touch panel and a method of detecting touches is disclosed. The touch panel comprises at least one hole in an active region of the touch panel, having a selected size for mechanically mounting a respective user input device.

Display arrangement

Disclosed are a touch sensitive display and a method of operation thereof. The display comprises a sensor having an input put array of electrodes and, capacitively coupled thereto, an output array of electrodes and a controller operable to perform a scan operation at every intersection point of said input array. The scan operation comprises measuring a touch value for an intersection point; determining a proportional difference between said touch value and a base touch value for said intersection point as a proportion of said base touch value, wherein said base touch value is indicative of there being no touch event on the sensor; and comparing the proportional difference to a predetermined proportional touch threshold so as to determine whether there is a touch event at that point.

Touch sensitive displays

In a communication network () comprising a plurality of wireless devices (), a method determines whether to change one or more communication channels over which the wireless devices () communicate. The method includes receiving a plurality of configuration parameters for the communication network (); receiving information related to one or more communication channel's availability for communications by one or more of the wireless devices (); and determining whether to change one or more communication channels over which the wireless devices () communicate by executing a communication channel change determination algorithm using the configuration parameters and the received information related to one or more communication channel's availability for communications by one or more of the wireless devices ().

Channel change decision mechanism and method for a wireless network

The present invention relates to an apparatus, method and computer program product for controlling reception in an asynchronous operation mode, wherein a transmitter sends an extended preamble sequence of length longer than the maximum length of a wake up message itself plus the maximum length of a gap between wake up messages, such that a receiver turning on during a sequence of wake up commands and not detecting the wake up commands, can be sure to successfully detect a preamble if it tries again a second time a set interval later.

Asynchronous transmission with double wake up

A location detection system and method with fingerprinting including defining nodes in an area, the area being associated with field devices and a target device; determining expected signal strengths from the field devices at the nodes; measuring actual signal strengths from the field devices at the target device for each of the field devices in communication with the target device; designating as valid nodes the nodes having the expected signal strength for a particular field device that is greater than or equal to the actual signal strength for a particular field device; and determining at least one of the valid nodes for which the actual signal strengths for the field devices agree with the expected signal strengths for the field devices at the at least one of the valid nodes.

Location detection system and method with fingerprinting

The invention relates to a protocol for communications between networked devices. The devices are logically arranged as a hierarchy of device types including a controller device type () from which no other device type depends and a basic device type () from which a number of other device types depend. The devices implement a simple device description message of fixed length and format which includes the device type, and some devices further implement an extended device description message including additional information.

Network establishment and management protocol

The invention relates to a protocol for communications between networked devices. The devices are logically arranged as a hierarchy of device types including a controller device type from which no other device type depends and a basic device type from which a number of other device types depend. The devices implement a simple device description message of fixed length and format which includes the device type, and some devices further implement an extended device description message including additional information.

In a wireless network, a device regularly communicates with at least one other node or device: generally this is its parent. If a problem with communication is detected, the device is preferably able to autonomously carry out a procedure to reacquire the network. In one embodiment, if a device is unable to communicate, it enters a temporary failsafe mode until that problem can be rectified. The device is suitably able to carry out a survey of local conditions in order to assist both it and the network to find a suitable alternative channel and, if a device is unable to immediately reconnect it broadcasts the result of its survey, the Network Environment Status (NES) message, in the hope that another device on the network will hear it. This Status message may then be used by the network to select an alternative channel.

Clear channel reporting and assisting orphaned nodes in a wireless network

A method and system to assign a mobile node to a router in a wireless multihop mesh network. A request from a mobile node to join the network is received. A server is notified of the request to join the network, and transmits a positive response to the mobile node upon establishing a connecting between the mobile node and network, and then generates an association record between the mobile node and a router. The association record is then recorded and it is determined if a previous association record exists between the mobile node and at least one other router. If previous association record exists, then a message to suppress any association record between the mobile node and the at least one other router is sent.

Mobile node assignement to a router in a WPAN stimulation

The present invention relates to cryptographic secret key distribution, wherein a value for a number of iterations can be individually set, so that the number of messages to be exchanged during generating a cryptographic secret key can be varied based on the set value of the iteration number.

Cryptographic secret key distribution

A device for wireless communication with at least one node in a wireless network is configured to obtain statistical data regarding one or more selected communication channels over which the device is adapted to communicate. The, device is further configured to report to at least one other device at least one metric related to an availability of each of the one or more selected communications channels for communications.

Gathering and reporting data concerning communication channel conditions for a wireless device in a wireless network

A method for routing messages having a routing indicator across linked master/slave configured piconets. At each master node, a routing table is stored and at each hop a receiving master node performs a reception algorithm on the routing indicator, the result enabling the receiving node to identify a target node and whether that node is local to the receiving piconet or a node accessible through a piconet with which the receiving piconet is linked. In the latter instance, the receiving node performs a transmission rule on the result to generate a new routing indicator replacing the routing indicator, which is then transmitted with the message to the identified piconet.

Growing community of inventors

Horley, United Kingdom

Philip Andrew Rudland