Abstract: A method of transferring a data packet from a providing communication terminal to a requesting communication terminal, wherein the requesting communication terminal transfers a message to the providing communication terminal including a requests for receiving the data packet and a first unique identification code identifying the requesting communication terminal. Upon receipt of the message the providing communication terminal verifies the validity of the first unique Identification code. When the verification has been ended successfully, the providing communication terminal responds by transferring a message to the requesting communication terminal including the requested data packet and a second unique identification code, Then the requesting communication terminal verifies the validity of the second unique identification code and stores the data packet accordingly when the verification has been successful.

Abstract: An electronic device which comprises a speech synthesizer including a loudspeaker, arranged to convert an input dependent upon punctuated text, to an audio output representative of a human vocally reproducing the text. It also comprises a user input device for inputting instructions to navigate through text, between positions defined by punctuation identifiers of the text, to a desired position, and a controller arranged to control navigation to the desired position and provide the speech synthesizer with an input corresponding to a portion of the text from the desired position, in response to input navigation instructions.

Abstract: For conveying coded digital information in the form of multiple-valued symbols from a transmitter to a receiver, the steps of a) encoding digital information in a Hybrid Concatenated Code encoder (501), b) mapping the encoded digital information into multiple-valued symbols in a Multi-Level Coding encoder (511, 512a-d, 513, 514), c) transmitting the multiple-valued symbols, d) receiving the multiple-valued symbols, and e) decoding the received multiple-valued symbols in a Multi-Stage Decoder (800) are employed.

Abstract: An IQ generator is integrated into an IC for generating IQ output signal. The IQ generator includes a signal generator providing input with two identical signals opposed in phase, a filter comprises a plurality capacitances and inductances, and output providing the I and Q signals. The capacitances and inductances of the filter are integrated into said integrated circuit.

Abstract: A circuit interfacing a balanced RF power amplifier with unbalanced load has a first shunt inductor and a series capacitor connected to a first output and a first shunt capacitor and series inductor connected to a second output of amplifier. The circuit comprises a second shunt inductor connected to the second output and feeding current to the second output. The first shunt capacitor may correspond to a sum of capacitors required to resonate with the series inductor and second shunt inductor. The second shunt inductor may exceed a value required to resonate with the capacitance of the first shunt capacitor less the capacitance required to resonate with the series inductor, by the same amount as the first shunt inductor exceeds the value required to resonate with the series capacitor. The circuit may further comprise a second shunt capacitor connected to first output, whereby first shunt capacitor exceeds sum of capacitors required to resonate with series inductor and second shunt inductor.

Abstract: A method of searching an electronic phonebook of a cellular phone, where the phonebook contains a multiplicity of names each being made up of one or more alphanumeric characters. The method comprises defining a search template by selecting a letter from a displayed list of the alphabet. The set of distinct data strings, present at the beginning of stored names, which commence with said template and which differ from one another by only their final character, are then identified. The user then selects one of said set of data strings as a new search template. If the number of names matching the new search template is less than some predefined number, then those names are displayed. If not, then the process is repeated using the new extended template.

Abstract: A method for use in a speech recognition system in which a speech waveform to be modelled is represented by a set of feature extracted parameters in the time domain, the method comprising dividing individual ones of one or more of said feature extracted parameters to provide for each divided feature extracted parameter a plurality of frequency channels, and demodulating at least one of the plurality of frequency channels to provide at least one corresponding baseband frequency signal.

Abstract: A radiotelephone handset has a housing having a front face to be presented to the face of the user when making a call, together with a user interface comprising an audio interface and a touch interface. The touch interface includes touch input means (26) on another face (20) of the housing to the front housing, for directing the processing of voice signals supplied to the audio interface.

Abstract: A keyboard having keys for inputting characters, wherein a key is arranged to produce a character in response to the press of the key once. The key (30) has a main contact (31) which is always activated when the key (30) is pressed. Also the key has at least one edge contact (32, 33), which is activated, in addition to the main contact (31), when the key (30) is pressed at the point or close to the point of the edge contact (32, 33). The activation of predetermined contacts correspond to the inputting of a predetermined character.

Abstract: A radio handset and method of operation of same for communication on a selected channel of a radio telephone system in which information is transmitted in bursts, each burst having respective portions independently capable of indicating burst errors. The handset is operable to detect sliding collisions by comparing the distribution of errors over error indicating portions of a received burst.

Abstract: A fixed wireless terminal such as a wireless local loop terminal comprising: memory (210) storing characteristics for at least one network, means (214, 220) for accepting network information particular to a subscriber and processing means (208) for reading the subscriber network information and, on the basis of the subscriber network information, selecting appropriate network characteristics for subsequent use by the terminal. Preferably the processing means (208) is arranged to configure a subscriber line interface circuit (212) in accordance with the selected appropriate network characteristics, such as ringing tone, dialling tone, busy tone etc.

Abstract: A cellular radio network based positioning system for determining the position of a mobile station (16). For each base transceiver station (1 to 5) or cell of the network, a fixed list of base transceiver stations is stored by a Mobile Positioning Centre (13). Each list identifies those base transceiver stations which enable the position of a mobile station served by the corresponding base transceiver station (6) to be optimally determined. The list is transmitted to the mobile station (16) via the serving base transceiver station (6) together with a list of respective real time differences which exist between the serving base transceiver stations and the listed base transceiver stations. The mobile station determines an observed time difference for each of the listed base transceiver stations, relative to the serving base transceiver station (6), from signals broadcast by the listed base transceiver stations.

Abstract: A portable radio communication device having low power radio frequency unit, and having associated therewith a plurality of memory packs, the memory packs being situated remote from and external of the portable radio communication device, and the memory packs having a low power radio frequency unit associated respectively therewith, the portable radio communication device including data transfer means whereby the portable radio communication device is operable to read from and write to selectable ones of the memory packs, the data transfer means providing for the read/write data operations by low power radio frequency transfer between the low power radio frequency unit of the memory packs and the low power radio frequency unit of the portable radio communication device. One advantage of this invention is that bulky memory is not situated in the mobile phone handset itself, which is thus more compact.

Abstract: The invention relates to a method for setting up a data transmission connection which is formed for transmitting information between at least a first communication device (1, 6-15, 300a, 300b, 400, 401) and a second communication device (1, 6-15, 300a, 300b, 400, 401), in which method, for at least the first communication device (1, 6-15, 300a, 300b, 400, 401), a network address (321a, 321b) is selected that is advantageously used for identifying the first communication device (1, 6-15, 300a, 300b, 400, 401).

Abstract: The invention relates to a method for transmitting background noise information including a silence descriptor identifier and background noise parameters in a communication system in which the information to be transmitted is formed into data frames. The data frames are subjected to channel coding to form channel-coded frames. The channel-coded frames are interleaved to be transmitted in two or more data transmission frames, and information of two channel-coded frames is transmitted in each data transmission frame. A first silence descriptor frame is formed provided with the silence descriptor identifier. The first silence descriptor frame is subjected to channel coding to form a channel-coded silence descriptor frame. The channel-coded silence descriptor frame is transmitted in two or more data transmission frames, and at least one data transmission frame transmitting part of the channel-coded silence descriptor frame is also used to transmit at least the background noise parameters.

Abstract: A housing or decorative cover for a mobile communication device is constructed by impact extrusion of metal. The impact extrusion die and punch are designed to provide attachment ridges and slots for ease of assembling the cover to the device. To provide a final shape and finish the impact extruded metal cover is drawn through a drawing stone.

Abstract: A method and an arrangement for setting data transfer parameters in a data transfer system is disclosed for use preferably in a digital cellular system. A data transfer connection may be established by setting first the parameters related to speech connection and then, during the speech connection, the data transfer parameters can be changed, when necessary to be suitable for data transfer. Then, at call setup, no data is needed on whether the data transfer connection is possibly to be used for data transfer.

Abstract: Apparatus, and an associated method, for encoding and decoding data in a communication system. A hybrid dimensional Spherical Space-Time Code (SSTC) scheme is provided. Data to be transmitted upon a communication channel is encoded, and when received at a receiving station, the encoded sequence is decoded.

Abstract: A chip assembly comprising a chip mounted on a support is disclosed. The chip assembly comprises at least one terminal and discharge means for discharging a charge accumulated on or transferred to the at least one terminal. The discharge means is connected to an RF common mode node for at least one circuit on the chip.

Abstract: A radio handset comprises a housing having a key pad including a plurality of keys mounted on a main body and an extending portion mounted for movement between a first position in which a group of the plurality of keys are concealed and a second position in which the group of the plurality of keys are exposed. A processor answers a call in response to movement of the extending portion. The processor delays answering the call for a period during which generation of a predefined cancellation signal cancels answering the call.