Stmicroelectronics S.r.l.

Koninklijke Philips Corporation N.V.

Stmicroelectronics International N.v.

Koninklijke Phillips Electronics N.v.

David Siorpaes

Diego Melpignano

Paolo Zambotti

Antonio Borneo

Simone Merlin

Giuseppe Desoli

Thomas Boesch

William Fornaciari

Francesco Gallo

Michele Zorzi

Andrea Zanella

Nicola Baldo

Federico Maguolo

Wolfgang Johann Betz

Stefano Bosisio

Patrick Bellasi

Matteo Carnevali

A system includes a host processor, a memory, a hardware accelerator and a configuration controller. The host processor, in operation, controls execution of a multi-stage processing task. The memory, in operation, stores data and configuration information. The hardware accelerator, in operation preforms operations associated with stages of the multi-stage processing task. The configuration controller is coupled to the host processor, the hardware accelerator, and the memory. The configuration controller executes a linked list of configuration operations, for example, under control of a finite state machine. The linked list consists of configuration operations selected from a defined set of configuration operations. Executing the linked list of configuration operations configures the plurality of configuration registers of the hardware accelerator to control operations of the hardware accelerator associated with a stage of the multi-stage processing task. The configuration controller may retrieve the linked list from the memory via a high-speed data bus.

Programmable hardware accelerator controller

An embodiment of a system for physical link adaptation in a wireless communication network such as e.g., a WLAN, selectively varies the physical mode of operation of the transmission channels serving the mobile stations in the network. The system includes an estimation module to evaluate transmission losses due to collisions as well as transmission losses due to channel errors over the transmission channel, and an adaptation module to select the physical mode of operation of the transmission channel as a function of the transmission losses due to collisions and to channel errors as evaluated by the estimation module.

Link adaptation in wireless networks

An embodiment of a method and system are provided for managing both system resources and power consumption of a computer system, involving different layers of the system: an application layer, a middle layer where the operating system is running and where a power manager is provided, and a hardware layer used for communicating with the hardware devices. Hardware devices have different operating modes which provide distinct trade-offs between performances and power consumption. Performance requirements defined at the level of the application layer, as well as the device power status of the system, set constraints on the system resources. The middle layer power manager may be in charge of retrieving performance requirements in form of constraints set on system parameters, aggregating these constraints opportunely and communicating corresponding information to the device drivers which may then select a best operating mode.

Power management using constraints in multi-dimensional parameter space

A multi-processing system-on-chip including a cluster of processors having respective CPUs is operated by: defining a master CPU within the respective CPUs to coordinate operation of said multi-processing system, running on the CPU a cluster manager agent. The cluster manager agent is adapted to dynamically migrate software processes between the CPUs of said plurality and change power settings therein.

Parallel processing method and system, for instance for supporting embedded cluster platforms, computer program product therefor

An arrangement for connecting mobile client devices to the Internet, or other IP based networks, uses WPAN and WLAN infrastructures or certain cellular systems like GPRS. This is achieved substantially seamlessly by providing a routing mechanism (IP-IP Tunnel) that allows mobile client devices to connect to an application server using communications standards depending on the available infrastructure, e.g. GPRS, IEEESO802.llb or Bluetooth wireless standards. The mobile client device and the server are arranged to communicate at a network layer through an Internet Protocol tunneling technique, such that an Internet Protocol address of the mobile client remains the same during a handover from a first communications standard to a second communications standard.

Method and system for connecting mobile client devices to the internet

A network interface driver is provided for the communication of TCP packets involving a mobile terminal and a wireless link. Acknowledgement signals are sent responsive to TCP data packets. A control element is arranged to prevent acknowledgement signals that are delayed in the wireless link from triggering a time-out signal in the TCP packet source.

Network interface driver and method

Growing community of inventors

Cortina d'Ampezzo, Italy

David Siorpaes