Broadcom Corporation

Nokia Corporation

Nokia Technologies Oy

Nokia Mobile Phones Limited

Kim Kaltiokallio

Risto Väisänen

Seppo Olavi Rousu

Yrjo Kaipainen

Markus Nentwig

Pauli Mikael Seppinen

Jonne Soininen

Marko Tapio Autti

Zhongming Shi

Risto Olavi Vaisanen

Ken Hsu

Sami Seppo Antero Kallioinen

Mika J Gronroos

Hannu Tapani Talvitie

Ekaterina Pogosova

Jouni Polonen

An apparatus is disclosed, comprising means for providing in an integrated circuit a resistive network comprising a first resistance element having a first resistance value and a second resistance element having a second resistance value, each resistance element of the resistive network being provided by one or more high-resistance contacts between conductors of the integrated circuit. The apparatus may also provide a means for providing in the integrated circuit an electrical current from the resistive network to one of a summing node output and a subtraction node output for input to a corresponding summing node input and a subtraction node input of a signal processing component. A method for forming such an integrated circuit is also disclosed.

Integrated circuits

A wireless communication arrangement () with multiple antennas for a vehicle includes a first printed circuit board () having a modem unit () and a radiating antenna element (); a second printed circuit board () having a radiating antenna element (); an interface unit () disposed on the first printed circuit board () and/or the second printed circuit board (); and a main bendable portion () bendably and electrically connecting the first printed circuit board () and the second primed circuit board () to each other. The first printed circuit board () and the second printed circuit board () are mountable on an outer surface of a vehicle in non-horizontal orientation with respect to said outer surface, with the first printed circuit board () and the second printed circuit board () forming a convex like shape in a horizontal direction via bending of the main bendable portion ().

Wireless communication arrangement

A method and arrangement for transmitting and receiving RF signals, associated with different radio interfaces of communication systems, employ a direct conversion based transceiver which substantially comprises one receive signal branch and one transmit signal branch. Mixing frequencies of the different systems are generated by a single common by use of an output frequency divider in combination with the synthesizer, and by use of filtering corresponding to a system channel bandwidth by means of a controllable low-pass filter operating at baseband frequency.

Method and arrangement for transmitting and receiving RF signals through various radio interfaces of communication systems

Measures are provided for performing direct radio-frequency to digital conversion. A radio-frequency input signal is compared with a plurality of reference voltages to generate a plurality of comparison signals, each comparison signal corresponding to one of the plurality of reference voltages. One or more of the plurality of generated comparison signals are first filtered to generate a first filtered signal. One or more of the plurality of generated comparison signals are second filtered to generate a second filtered signal. A digital output signal is generated at least on the basis of the first filtered signal and the second filtered signal.

Analogue to digital converter

A multi mode wireless device can communicate with cellular and non-cellular networks. The device has first and second processors in communication with each other. In one arrangement, the first processor provides control processing for physical layer 1 processing for both the cellular and the non-cellular radio communications in parallel, and the second processor provides processing for data link layer 2 for both the cellular and the non-cellular radio communications in parallel, and the device can communicate with the cellular and non-cellular networks simultaneously. In another arrangement, the first processor provides control processing for physical layer 1 processing for both the cellular and the non-cellular radio communications in parallel, and the second processor provides processing for data link layer 2 and all layers above layer 2 in the device for both the cellular and the non-cellular radio communications in parallel.

Processor arrangement for multi mode wireless device

A method and arrangement for transmitting and receiving RF signals, associated with different radio interfaces of communication systems, employ a direct conversion based transceiver which substantially comprises one receive signal branch and one transmit signal branch. Mixing frequencies of the different systems are generated by a single common by use of an output frequency divider in combination with the synthesizer, and by use of filtering corresponding to a system channel bandwidth by means of a controllable low&#x2014;pass filter operating at baseband frequency.

In relation to wireless communication, a communications apparatus suitable for installation into a vehicle provides a user-driven communication capability in a vehicle communications system. The apparatus includes means providing a wide-area communication capability, at least one antenna interface for conveying signals to and/or from at least one antenna providing wide-area communication, at least one power input configured to receive operating power for the apparatus from a vehicle and at least one digital communication interface for providing connectivity to a master unit of the vehicle.

Wireless communication apparatus and method

A method and an arrangement for transmitting and receiving RF signals, associated with different radio interfaces of communication systems, employ a direct conversion based transceiver which substantially comprises one receive signal branch and one transmit signal branch. Mixing frequencies of the different systems are generated by a single common synthesizer by use of an output frequency divider in combination with the synthesizer, and by use of filtering corresponding to a system channel bandwidth by means of a controllable low-pass filter operating at baseband frequency.

A demodulator subsystem incorporates second-order filtering for use within a sigma-delta DAC. A conventional demodulator is modified to include circuitry which manifests a second-order filtering response to the output of the demodulator. The added circuitry includes an additional pair of phased switched capacitor legs and a fixed capacitor. The combination of the additional circuitry with the existing phase switched and fixed capacitors of the conventional demodulator creates an additional pole which provides second order filtering to the demodulator output, effectively eliminating the high-order post filtering and minimizing both the circuit area required for implementation of the demodulator and its power consumption.

Second order demodulator for sigma-delta digital to analog converter

The invention relates to a compressor and an expander for use in a compander realized in CMOS-technology which is used to improve speech quality in mobile phone systems AMPS (NAMPS), NMT and TACS (JTACS, ETACS, NTACS). The compander is integrated with other functions of the mobile phone. The compressor and expander have SC-amplifiers controlled by a control logic. A double comparator XOR-block is used in the control of the amplifiers.

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Salo, Finland

Kim Kaltiokallio