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| Number | Title | Issue Date |
| 6308196 | Method and interface device for sharing physical resources In a method of sharing physical resources associated with a server system between the server system and a client system, a respective associated address designating a given location in a program memory and identifying the start of one of a plurality of ta... | 10/23/2001 |
| 5982829 | Transmitter, receiver and frame supporting various data signaling rates A transmission frame comprises a synchronization flag and data bits. It is formed of at least a first subframe in which occur the synchronization flag and an identification field which specifies the number of subframes. Each of the other subframes compris... | 11/09/1999 |
| 5960352 | Multilayer cellular mobile radio network with optimized frequency re-use plan, and associated method In a combined time-division multiple access and frequency-division multiple access multilayer cellular mobile radio network comprising macrocells and microcells, each macrocell being associated with at least one control frequency and at least one traffic ... | 09/28/1999 |
| 5949794 | Time symmetrical control signal, and a receiver and transmission system employing the same The invention relates to a control signal for receivers, said control signal being formed by juxtaposing two signal elements of equal duration, and time symmetrical. For example, the signal comprises at least one first pseudo-random noise digital sequence... | 09/07/1999 |
| 5909675 | Device for recognizing information conveyed by a received signal For recognizing information conveyed by a received signal, represented by convention by possible elementary forms of the signal to be transmitted, a device includes a correlator for establishing a correlation between the received signal and various possib... | 06/01/1999 |
| 5875062 | Transmitter, receiver and frame for transmitting data with reduced ambiguity A transmission frame comprises a locking row, synchronization bits and data bits, the synchronization bit being placed immediately after the locking row. The frame terminates with a synchronization bit. A transmitter and a receiver are linked by a transmi... | 02/23/1999 |
| 5864589 | Device for making decisions by estimating the viterbi algorithm in a mobile radio system In a mobile radio system including mobile terminals each terminal comprises, on the receiving side, a unit using the Viterbi algorithm for equalization or for decoding the received signals after demodulation. A decision device of this system calculates th... | 01/26/1999 |
| 5815533 | Receive processor device for use in a digital mobile radio systems A receive processor device, in particular for a digital mobile radio system, includes a processor system comprising a set of functional units connected in cascade, some of which are decision units adapted to make decisions as to the value of information s... | 09/29/1998 |
| 5778321 | Procedure for automatically replacing a user identification module in a mobile terminal in an mobile radio network A procedure for automatically replacing a user identification module of a terminal in a communication network includes storing in a memory of the terminal a message indicating the detection of a problem with writing and/or reading the user identification ... | 07/07/1998 |
| 5777577 | Satellite selection A device for selecting a primary satellite for a terminal (T) in a radiocommunication system having a number of moving satellites comprises measurement means for determining location information (D) on the basis of the position of the terminal with respec... | 07/07/1998 |
| 5731992 | Method of reducing the time for adjusting and electronic function in an article that presents dispersion from one article to another A method of adjusting an electronic function implemented in an article that forms a part of a population of articles to be adjusted, the electronic function presenting dispersion from one article to another. When necessary, the method comprises replacing ... | 03/24/1998 |
| 5732339 | Frequency offset correction In a method and a device for correcting a frequency offset between a receive signal and a reference signal, the receive signal, being fed to a frequency converter which also receives a conversion signal in order to produce a transposed signal, the convers... | 03/24/1998 |
| 5711003 | Method for determining timing advance during handover A method of handover between two cells of a TDMA cellular mobile radio network, wherein, after a mobile receives a handover command (HANDOVER CMD) from its base station, the mobile transmits a message (SABM) containing connection set-up information or wan... | 01/20/1998 |
| 5701584 | Cellular mobile radio system having a frequency reuse plan with partially identical patterns In a cellular mobile radio system including a plurality of cells grouped into identical patterns, each of at least two cells, repeated periodically in space and such that: each cell is associated with one or more base transceiver stations to send radio si... | 12/23/1997 |
| 5697057 | Control station for a sectorized cell of a mobile radio network A sectorized cell of a mobile radio network forms a first set which comprises a nucleus and a plurality of sectors disposed around the nucleus, the coverage of the cell being provided by transceiver units forming a second set, the first and second sets be... | 12/09/1997 |
| 5687199 | Substitution of synchronization bits in a transmission frame A transmission frame comprises a synchronization flag, synchronization bits and data bits. A control bit is substituted for one of the synchronization bits if any sequence of bits the same length as the synchronization flag including the synchronization b... | 11/11/1997 |
| 5668559 | Antenna for portable radio devices The present invention concerns an antenna for portable radio devices including a helical antenna coupled at the base to a transmitter/receiver. The pitch of a conductive material helix constituting the helical antenna varies according to the height of the... | 09/16/1997 |
| 5659880 | Accelerated synchronization method for a mobile terminal in a mobile radio network A method of synchronizing a mobile terminal in a mobile radio network in which synchronization of the mobile terminal takes place only after determination of the best cell by means of a measurement campaign requests synchronization of the mobile terminal ... | 08/19/1997 |
| 5659595 | Self-disabling device for a mobile telephone type portable terminal A self-disabling device for a portable terminal used in a mobile telephone network includes a register holding an identification number of the portable terminal and a buffer memory for temporarily storing short information messages transmitted by a contro... | 08/19/1997 |
| 5642361 | Message transmission by means of a variable length frame A transmitter transmits blocks to a receiver by means of frames formed of a locking row and data rows. It receives an acknowledgement from the receiver sent by the latter on recognizing a locking row. A block comprises control bits, data bits and adaptati... | 06/24/1997 |
| 5640692 | Transmission system for the transmit part of a terminal associated with a digital mobile radio installation A transmission system for digital mobile radio installation mobile terminals includes an attenuator on the input side of the mixer in order to apply to the latter signals at an rms level of only approximately 70 millivolts. The preamplifier is therefore a... | 06/17/1997 |
| 5610615 | Method and device for mobile station positioning by means of a satellite, and associated transmission method A positioning method for a mobile station in the radio coverage area of a satellite entails determining the instantaneous distance between the satellite and the mobile station. The instantaneous elevation angle $c; of the satellite is then calculated f... | 03/11/1997 |
| 5590273 | Microcontroller integrated circuit with read only memory containing a generic program A microcontroller integrated circuit comprises a processor core which exchanges data with at least one data processing and/or storage device. The integrated circuit comprises a mask-programmed read only memory containing a generic program such as a test p... | 12/31/1996 |
| 5583870 | Dummy burst structure in a cellular digital radio-communications system using the TDMA principle, and a base station for generating such a structure The present invention relates to a dummy burst structure used in a cellular digital radio-communications system operating on the principle of time division multiple access, each cell in the system being associated with a beacon frequency subdivided into p... | 12/10/1996 |
| 5565868 | Modulated feedback loop analog-to-digital converter The analog-to-digital converter receives an analog input signal (x(t)) to produce a digital error signal (y(t)). It comprises a subtractor (1) to calculate the difference between the input signal and a reference signal (Ur(t)), a converter subsystem (2, 3, 4) ... | 10/15/1996 |
| 5564076 | Portable digital signal transceiver providing communication via a terrestrial network and via a satellite network A dual mode portable digital radio transceiver for communicating via a terrestrial network (first mode) and via a satellite network (second mode) synthesizes a modulation first frequency for modulation of signals transmitted in both modes and a conversion... | 10/08/1996 |
| 5559829 | Method of constructing a spreading code associated with one user of a direct sequence code division multiple access digital transmission system and corresponding method of generating a table A method of constructing a spreading code associated with one user of a direct sequence code division multiple access digital transmission system includes at least one stage of concatenating a plurality of different sub-codes. Specifically, the spreading ... | 09/24/1996 |
| 5546384 | Step by step method of controlling frequency redefinition in a cellular mobile radio system In a reliable step by step method of controlling frequency redefinition in a cellular mobile radio system with no severe constraints on the network or on the mobile and using only existing procedures between mobiles and the network, frequency redefinition... | 08/13/1996 |
| 5535424 | Method enabling a mobile station of a cellular mobile radio system with more than one type of cell to determine the type of cell it is accessing, and mobile station and base transceiver station for implementing this method In a method of determining, in a cellular mobile radio system with more than one type of cell, which type of cell a mobile station is accessing, the management network of the system sends to the mobile station a signalling message (recognition message) in... | 07/09/1996 |
| 5533047 | Threshold detector for digital radio transmission systems, devices comprising a threshold detector of this kind and corresponding utilization A threshold detector for digital signal transmission systems using a transmission channel, in particular for transmission to mobiles, calculates a set of coefficients fn belonging to the group comprising a set of coefficients cn of t... | 07/02/1996 |
| 5511072 | Method, terminal and infrastructure for sharing channels by controlled time slot stealing in a multiplexed radio system In multiplexed data radio communication, especially (but not exclusively) in TDMA mode, a method is provided of offering optimized intelligent traffic channel sharing services, enabling data from a secondary source to be conveyed on a traffic channel assi... | 04/23/1996 |
| 5496980 | Switch knob adapted to be fixed and sealed to a support A switch knob has a mobile first part adapted to switch from one connection to another by rotation and a second part fixed to a support of the device on which the knob is mounted by an assembly device and a clamping device. The assembly device comprises t... | 03/05/1996 |
| 5483194 | Differential current mode amplifier device A differential current mode amplifier device generates a common mode bias current. A translinear multiplier receives at two inputs this common mode bias current and a differential mode current to be amplified and delivers at two outputs an amplified diffe... | 01/09/1996 |
| 5471170 | Current-mode amplification system, and corresponding operational amplifier, gain section and amplification element A current-mode amplification system including a first gain section and at least one second gain section chained together to form a chain of gain sections. The first gain section containing a first amplifier and a first low-pass filter. Each second gain se... | 11/28/1995 |
