Nokia Corporation

Nokia Technologies Oy

Tino Hellberg

Kai Inha

Pekka Talmola

Timo Toivola

Pekka Eerikki Leinonen

Kristian Vaajala

Seppo Järvensivu

Teemu Helenius

Mika-Petteri Lundgren

Juha Kuusisto

Marko Vainio

Pekka Leinonen

Apparatus embodiments of the invention are disclosed for requesting power via a wired interface. In example embodiments, a pull-down circuit in the apparatus acting as a power consumer when there is no energy in the apparatus, is connected via a configuration line over a cable to a power provider device. The apparatus may be in a power down mode, it may have an empty battery, or it may have no battery. The pull-down circuit is configured to use energy from the configuration line to pull down a voltage on the configuration line, to signal the power provider device to provide power over another line of the cable to the apparatus.

Pull-down circuitry for an apparatus

Disclosed herein is an apparatus. The apparatus includes a camera, a camera flash, and a current optimization system. The current optimization system is connected to the camera and the camera flash. The current optimization system is configured to calculate a shutdown period based on a flash mode of the camera.

Method and apparatus for optimization during camera flash pulses

An accessory device for a mobile telecommunications terminal is disclosed, wherein the mobile telecommunications terminal comprises means for media processing and means for connecting to the accessory device. The accessory device comprises circuitry adapted to provide media transferring capabilities, a memory comprising at least one pre-stored parameter value related to the media processing capabilities of the mobile telecommunications terminal and for use by the mobile telecommunications terminal, and transfer means for transferring the at least one parameter value from the memory in the accessory device to the mobile telecommunications terminal via the connecting means.

Coordination of apparatus and mobile terminal media processing circuitry

Disclosed is an interface () between a master device () and a slave device (). The interface includes a bit serial bidirectional signal line (A) for conveying commands and associated data from the master device to the slave device, and for conveying a reset signal, an interrupt signal, and a learning sequence signal for specifying a duration of a bit time for data transferred from the slave device to the master device. The bit serial bidirectional signal line further indicates an accessory device connected/disconnected state to the master device.

Accessory control interface

Disclosed is an interface ( ) between a master device ( ) and a slave device ( ). The interface includes a bit serial bidirectional signal line ( A) for conveying commands and associated data from the master device to the slave device, and for conveying a reset signal, an interrupt signal, and a learning sequence signal for specifying a duration of a bit time for data transferred from the slave device to the master device. The bit serial bidirectional signal line further indicates an accessory device connected/disconnected state to the master device.

Growing community of inventors

Littoinen, Finland

Tino Hellberg