Abstract: A digital microelectronic circuit comprises a clocked data-processing unit (1) and a converting unit (2) which reads in data present at the output of the data-processing unit, performs a predetermined converting operation on the data and passes on the converted data. The converting unit is realized in an asynchronous logic circuit, such that the period of time for performing the converting operation is shorter than the shortest time interval to the next change of the data present at the output of the data-processing unit. In this way, fast, serial synchronous processes can be parallelized from the point of view of the slow synchronous system in synchronous systems which are slow relative thereto by using asynchronous logics, without a further high-frequency clock system being required.

Abstract: In a communication arrangement (1) provided for transmitting data (DA) to a transponder (2) which arrangement includes a data source (5) for delivering data (DA) and includes a carrier signal generator (6) for generating a carrier signal (CS) and includes modulation means (7) to which can be applied the data (DA) and the carrier signal (CS) and which modulation means are provided for modulating a carrier signal (CS) in accordance with the data (DA) and for delivering a modulated carrier signal (CSM) to transmitting means (8) having an input resistance (9), the modulation means (7) have a changeable output resistance (10) which forms a resistance network together with the input resistance (9) of the transmitting means (8), and resistance change means (25) for changing the output resistance (10) in accordance with the data (DA).

Abstract: The invention relates to a device for driving display devices and to a display device that is provided with a driver circuit. The invention also relates to a method of testing driver circuits. Driver circuits of this kind have a decisive effect on the quality of the display devices. Therefore, in order to ensure a good quality, the driver circuit must be extensively tested, that is, with an as short as possible test time and using as few means as possible. In order to make such a test possible, a device for driving the display devices is provided with M leads that are coupled to AN output stages that are provided with at least one multiplex device (4) and at least one amplifier unit (5), the M leads being coupled to a first switching device (2) that enables the interruption of a voltage supply to the M leads, and at least one second switching device (3) being provided in at least one output stage (AN) in order to switch the output stage (AN) to a selectable potential.

Abstract: A data carrier (1) for contactless communication with the communication station comprises firstly a reception stage (3) for receiving an interrogation signal (IS), secondly a generation stage (17) for generating a response signal (RS) upon reception of the interrogation signal (IS), thirdly a processing circuit (18) for processing the response signal (RS) into a transmission signal (MCRS) suitable for transmission to the communication station, fourthly a determination device (22) for determinating at least one representative value (REP1, REP2), the representative value (REP1, REP2) representing the field strength of the field acting on the data carrier (1), and fifthly a control connection (25) between the determination device (22) and the processing circuit (18), wherein the processing circuit (18) is influenced via the control connection (25) in order to vary a transmission parameter of a transmission signal generated by the processing circuit (18) as a function of the at least one representative value (REP

Abstract: Random-access memory device having select lines, bit lines, and several RAM cells, each RAM cell being connected to a corresponding one of said select lines and to a corresponding one of said bit lines. The random-access memory device further having select buffers for selecting the read-out of one out of the selected lines when receiving a selection signal. Each of the select buffers having an inverter serving as driver. The inverter is being followed by a diode for limiting output voltage swings at the respective select line.

Abstract: A method and apparatus for testing the random numbers generated by a random number generator in real time. As a series of random numbers are generated, a plurality of the last numbers are stored, then the stored random numbers are shifted by predetermined amounts to obtain a special kind of dot product of bit sequences between the stored random numbers and the shifted random numbers. The average autocorrelation values are computed each time a new random bit is generated. Thereafter, it is determined whether the generated random numbers are not sufficiently random by comparing the average autocorrelation values to predetermined acceptance ranges.

Abstract: The invention relates to a method of selecting a signal among N signals, according to which method a validation signal associated with a signal to be selected is placed in an active state by means of a selection signal. The method according to the invention includes an attribution to each of the validation signals of the state of its associated selection signal when all the validation signals are in an inactive state. The invention enables to preserve the integrity of the duty cycle of the signal resulting from the selection thus carried out.

Abstract: In a communication device (1) with firstly a coil configuration (2) which has two oppositely situated sub-configurations (3, 4), by means of which a communication field operative between the two sub-configurations (3, 4) can be generated and each of the two sub-configurations (3, 4) having at least two coils (5, 6, 7, 8), and with secondly sub-configuration signal-generating means (31) which are designed for the distinguishable generation and delivery of a first sub-configuration signal (TI1) and a second sub-configuration signal (TI2), for each of the two sub-configurations (3, 4), there are provided thirdly coil signal-generating means (32) which are designed for the distinguishable generation and delivery of coil signals (S1, S2, S3, S4) for the at least two coils (5, 6, 7, 8) of the respective sub-configuration (3, 4) on the basis of the respective sub-configuration signal (TI1, TI2).

Abstract: The invention relates to a method of generating a random-number sequence, and to a random-number generator, particularly for a chip card or a smart card.

Abstract: A collection management system, or virtual jukebox, is provided for a collection of recordings that is independent of the physical media upon which the material is recorded. The system forms a part of a network that includes storage media and playback devices, and provides an easy to use system for collection cataloging, archiving, and retrieval. In a preferred embodiment, a collection management system resides on a consumer electronic (CE) device, or a personal or home computer (PC), and the collection includes recordings that are stored on one or more hard drives associated with the CE device or the PC. The collection management system includes a user interface that facilitates the retrieval of recordings for playback from one or more storage devices, based on an individual selection of genre, author, and so on.

Abstract: A sequential playback system is configured to select each sequential song based upon characteristics of an ending segment of each preceding song. Songs are selected based on the characteristics of the overall theme of the selection, if any, and also based on a musical correspondence between songs. The correspondence may be based on the rhythm of each song, the notes and chords of each song, and other musical characteristics of the songs. The end segment of each selected song is characterized, and the first segment of a candidate song that satisfy the overall selection criteria is compared to this characterization to determine a correspondence. If the first segment of the candidate song is inconsistent with the end segment of the previously selected song, another candidate song is found that satisfies the overall selection criteria, and the first segment of this new candidate song is compared to the characterization.

Abstract: A display monitor has at least a stand-alone operational mode, and a further operational mode as a further peripheral to, e.g., a PC. The monitor has an input for connecting to a first peripheral device. The monitor also has circuitry for enabling data communication with the first peripheral device for user control of a functionality of the display monitor in the stand-alone mode, and for data communication between the first peripheral and the PC via the monitor when the monitor is in the further operational mode and connected to the PC and to the first peripheral.

Abstract: A data processing device (1) which includes a circuit (2) with data processing means (17) which are suitable for processing data (DA) while utilizing a characteristic value (CV) and with sequencing means (15) which are arranged to execute an algorithm in order to control the data processing means (17) in conformity with this algorithm which comprises a given number N of sub-algorithms containing identical successions of algorithm steps, is additionally provided with order fixation means (29) which co-operate with the sequencing means (15) and whereby, each time when the algorithm is executed, an order can be fixed from a plurality of feasible orders for the execution of the N sub-algorithms.

Abstract: The invention relates to a method and arrangement for programming and verifying EEPROM pages and a corresponding computer software product and a corresponding computer-readable storage medium, which can be used in particular to speed up the programming into the EEPROM of large amounts of data or code, such as occurs for example when smart cards are being personalized. The invention relates to an arrangement that sets up a DMA connection between EEPROM and RAM—not including the core of the microcontroller involved—and makes possible automatic programming of data blocks of random length from the RAM to the EEPROM including the verification of the programming operation against the original data in the RAM under the control of the EEPROM logic.

Abstract: A signalling system includes a plurality of active transponders (10), an interrogation station (12) and a source (14) of switching signals. Each of the transponders has a microcontroller (20), a radio transceiver (34) for responding to radio interrogation signals from the interrogation station, the radio transceiver being coupled to the controller by way of switching means (36) which switches the transceiver on or off whilst leaving the microcontroller active, and a passive receiver (38) for receiving switching signals from the source of switching signals which signals are used by the microcontroller for switching-on or -off the transceiver. Transducers (26, 28, 30) may be coupled to the microcontroller for monitoring environmental features, such as ambient temperature and humidity, and data relating to the features is stored in a RAM (32) in readiness to be relayed to storage means (56) in the interrogation station (12) as and when required.

Abstract: The invention relates to a circuit arrangement which includes a subvoltage generating unit and a voltage multiplier for generating at least one voltage Vmult, it being arranged to control the voltage multiplier by switching the voltage multiplier to a direct mode during a start time. The invention also relates to an arrangement for driving a display device, to a display device which includes such an arrangement, to an electronic apparatus which is provided with a display device for the display of image data which includes an arrangement for driving the display unit, and to a method of starting a circuit arrangement 15 which includes a subvoltage generating unit 40, a voltage multiplier 20 and a start control unit 30.

Abstract: An integrated circuit accesses first encrypted data stored in an external random access memory and accesses second encrypted data stored in an external read-only memory. The external random access memory and the external read-only memory are external to the integrated circuit. When accessing a first portion of the first encrypted data stored in the external random access memory, a first algorithm is used to decrypt the first portion of the first encrypted data. When accessing a first portion of the second encrypted data stored in the external read-only memory, a second algorithm is used to decrypt the first portion of the second encrypted data. The second algorithm is different than the first algorithm.

Abstract: A mobile communication apparatus (1) includes a transponder unit (15) having transmission means (16) and a transponder circuit (17) and is adapted to accommodate an accessory unit (ESIM), the accessory unit (ESIM) being provided with at least the transponder circuit (17) of the transponder unit (15).

Abstract: The instantaneous power consumption of an appliance is used to determine the status of the appliance, from which further actions may be taken. This invention is premised on the observation that most appliances have a characteristic power consumption pattern that can be used to determine the state of operation of the appliance. An electric coffee pot, for example, consumes high power substantially continuously during the brewing state, then reduces its power level, or power duration, or both, while keeping the pot warm, then terminates its power consumption when it is turned off. In like manner, the power consumption patterns of other appliances, such as toasters, washing machines, dryers, and so on may also be used to determine the state of each appliance. The communicated state may be used by a home-automation system to effect a variety of actions, including notifying the user, terminating the available power to the appliance, initiating an action by another appliance, and so on.

Abstract: The invention proposes to improve the performance of the conventional methods of correcting channel transmission errors without increasing the redundance of encoding the channel. It is particularly advantageous for the systems which may be subjected to very poor transmission conditions such as radio interference or any other noise phenomenon in the channel. The invention provides the addition of a specific correction device after decoding the channel for detecting and correcting the residual channel errors exceeding the correction capacity of the channel decoder. It also proposes that the signal supplied by the decoder is a speech signal constituted by a limited number of determined speech elements. The invention provides permanent vocal recognition of the received signal with the aid of a dictionary of speech elements for detecting the transmission errors and for correcting them by replacing the erroneous part in the received signal by a synthesized part on the basis of the speech dictionary.