Motorola Corporation

Motorola Mobility LLC

Ouelid Abdesselem

Dejan Mijuskovic

Charles Philipp Binzel

Daniela Radakovic

Daniel Cirujano Cuesta

Lionel Frederic Ulmer

Stephane Laurent Baills

Karine Griesmann

Faouzy Soilihi

Francois Deparis

Lydie Desperben

Benoit Boyer-Noel

Michel Le Joly

Mark Kaluzny

Walter Kurtsiefer

Estelle Menu

A wireless communication device for presenting alternative media during an out of signal condition is disclosed. The device comprising a receiver configured to receive a primary media stream. A memory coupled to the receiver to store a secondary media. A user interface to output one of the primary media stream and the secondary media stream. A detector module that detects when a first predetermined characteristic has been met, the characteristic preventing the output of the primary media stream received from the broadcast transmitter. A media selector module that selects between the primary media stream from the receiver and the secondary media from the memory in response to the detector module detecting that the first predetermined device characteristic has been met.

Method and apparatus for data broadcast

A method in a mobile wireless communication device capable of receiving a paging message transmitted in a series of bursts over successive time frames including receiving () not more than one burst of an incoming paging message, determining () whether the incoming paging message corresponds to a known paging message, and () reducing power consumption of radio circuits of the mobile wireless communication device during time frames when other bursts would be received if the incoming paging message corresponds to the known paging message. If the incoming data does not correspond to the known data, additional burst are received and decoded.

Incoming message decoding in wireless communications devices and methods

The invention relates to a radio communication system in which a time slot of a frame of a multiframe signal allocated to the frequency control channel is modulated using an 8PSK modulation scheme to contain a tone having a frequency which GMSK modulation is unsuited to generate. This enables COMPACT-format signals to be distinguished from GSM-format signals and ensures backwards compatibility with all existing GSM mobile stations.

Radio communication system

GPRS mobile paging method

Transceiver circuitry comprises a first portion having a first modulation means operating at a first order of modulation, for transmitting and receiving voice signals; a second portion having a second modulation means operating at a second order of modulation, for transmitting and receiving digital signals at a higher data rate than is achievable by the first portion; and a data conversion means operable to convert from or into voice signals intended for processing by the first portion into or from digital signals for processing by the second portion.

Transceiver circuitry, portable communication device and method for performing radio communication

An equaliser for performing equalisation in a radio receiver receiving a signal from a transmitter, there being a Channel between the transmitter and the receiver having a Channel Impulse Response, CIR. The equaliser comprises CIR estimation means for generating a plurality of tap coeffecients; assessment means for assessing the tap coeffecients generated by the CIR estimation means and for outputting an assessment signal; and an equaliser algorithm processing unit , adapted to receive the assessment signal, for selecting and performing one of a plurality of different equaliser algorithms on the basis of the assessment signal, whereby when one or more of the tap coeffecients may be disregarded, an algorithm which requires less processing power may be selected and performed in preference to an algorithm which considers all of the coeffecients generated by the CIR estimation means

Method and apparatus for performing equalization in a radio receiver

A method and circuit ( ) for dynamically adjusting the supply voltage (Vdd) in a digital circuit ( ) determines the propagation delay (tpd) of a signal along a signal path ( ) in the digital circuit and adjusts the supply voltage so that the determined propagation delay equals a predetermined period, such as the clock period of the clock signal (CLK) which clocks the digital circuit. the determined propagation delay equals the predetermined period, the adjusted supply voltage is applied to the digital circuit ( ). This technique can be used to optimise power consumption and processing capability.

Methods and circuits for dynamically adjusting a supply voltage and/or a frequency of a clock signal in a digital circuit

Methods and circuits for dynamically adjusting a supply voltage and/or a

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Toulouse, France

Ouelid Abdesselem