Abstract: Noise reduction systems comprising an input for receiving per time-interval input signals originating from a Fast Fourier Transformator (frequency-components+values/amplitudes) and comprising a noise estimator coupled to said input for performing noise estimations per input signal and comprising a converter coupled to said noise estimator for performing conversions of said noise estimations and for generating correction signals and comprising a combiner coupled to said converter and to said input for generating per time-interval output signals (input signals minus correction signals=frequency-components +values/amplitudes with reduced noise) do not take into account their surroundings and are rather static. By introducing adaptation signals for adapting said conversions, noise reduction systems become dynamic and more flexible.

Abstract: Known telecommunication systems comprising a terminal and a speech recognizer for vocal commanding offer one fixed capacity for vocal commanding. By detecting an indication signal originating from said terminal, like for example a telephone number dialled or a key signal or a vocal signal, or originating from an application located in said terminal or elsewhere in the network and by in dependence of said indication signal adjusting a capacity parameter for said vocal commanding, a flexible capacity parameter is created for adjusting the available bandwidth between terminal and speech recognizer and/or for adjusting a processor capacity of terminal and/or speech ercognizer, like a sampling rate or a noise reduction being (de)activated, as a result of which name dialling, command & control, and dictation can be done with the highest efficiency.

Abstract: Telecommunication systems including a terminal for speech communication and a network with a speech recognizer may couple the terminal and the network via a packet-switched coupling, whereby the terminal is provided with a detector system for detecting voice activity in audio signals and with a processing unit for processing audio signals and with a buffer for buffering processed audio signals for generating further information blocks and with a network-combiner for combining the information blocks with the further information blocks for creating an information stream for the speech recognizer. Preferably, in the detector system, processed audio signals or threshold signals representing differences between processed audio signals or indication signals are used for forming information blocks.

Abstract: Known telecommunication systems comprising a terminal, a switch and on Internet/Intranet comprising a memory for storing information blocks at locations defined by addresses, can be made more user-friendly by introducing a detector for detecting speech-recognition/non-speech-recognition related parts in control signals originating from said terminal and defining said addresses or in response signals sent from memory to terminal and comprising said information blocks. A processor is coupled to said detector for in dependence of said detecting routing (parts of) said signals to a server for either conversion of (parts of) said signals or for information purposes.

Abstract: Call connections by way of the Internet (internet telephony) are less expensive than ones by way of an open telephone network. However, no fixed transmission rates are guaranteed in the Internet, which can lead to losses in the quality of transmitted speech signals. A device (V) for establishing a call connection between two subscriber terminals (T1, T2) has a first interface (IF1) to a packet-switched data network (INET) and means (IP, KOMP) for establishing connections by way of the packet-switched data network (INET) as well as a second interface (IF2) to a connection-oriented telecommunication network (PSTN), in which a transmission channel with a predetermined transmission band width can be furnished. By means of a monitoring device (MON), the device (V) determines a current data throughput in the data network (INET).

Abstract: Known telecommunication systems comprising a network-device and a terminal coupled via a wireless link for exchanging information can be made more flexible and more individualized by storing a terminal-definition code in said network-device for defining terminal-characteristics, whereby at least a first part of said information should be made dependent upon said terminal-definition code. Preferably, a preferences code is also stored, whereby at least a second part of said information should be made dependent upon said preferences code. A third part of said information may comprise (distributed) speech (recognition) signals. Both codes could further be made adjustable by a user.

Abstract: Due to, after the introduction of distributed speech recognition, two kinds of terminals being in existence, novel terminals comprising a preprocessing unit for cooperation with a final processing unit, and old fashioned terminals not comprising such a preprocessing unit, switches will have to react differently in dependence of what kind of terminal needs to be switched. This can be avoided by locating said preprocessing unit between said old fashioned terminal and said final processing unit, for example between said old fashioned terminal and said switch or in said switch before the switching is done.

Abstract: An initiating processing unit is normally occupied during the programming of flash EEPROMs. The time of occupation becomes ever longer with increasing age and degree of utilization of the flash EEPROMs. Here, the processing unit uses an initiatable interrupt routine, which triggers a programming of the flash EEPROM and is then terminated in order to use the programming to further process a main program at the same time. A timer function in a processing unit is used to trigger an interrupt routine. The interrupt routine checks the initial conditions and in the case when an initial condition has been fulfilled, the programming of the flash EEPROM is triggered, whereupon the execution of the main program continues in the processing unit during the programming.

Abstract: A method of operating a flash memory which can be recorded in "byte" o in "word" form, but can only be erased in blocks, is disclosed. A memory optimization algorithm is used where the degree of filling of the individual blocks in the flash memory is determined and compared to a threshold. According to the degree of filling, data are shifted to the end of the memory, or it is determined whether an entire block can be erased, or whether copying can take place into open areas of blocks within the memory so that an entire block can be erased, or whether files can be temporarily stored in areas marked for erasure and reconstructed after the block has been erased, or if files can be overwritten to areas marked for erasure by means of a linkage. In the event that optimization is not possible, a user inquiry may be made.

Abstract: Creation of an all-digital answering set with voice control, which is able to perform a multitude of functions. The software for performing functions is subdivided into individual software modules which execute sub functions. These can be used in multiple ways and are integrated into a digital signal processor (DSP) of the answering set.