Abstract: A digital signal processing system for multiplying a digital value and a digital signal. The digital signal processing system receives the digital value in an encoded format, and multiplies the digital value with the digital signal. The digital value in the encoded format has an offset, which is encoded as a floating point. The disclosure provides a digital processing system that can carry out a multiplication operation with a smaller area, less complexity and/or reduced power usage compared with known multipliers.

Abstract: A digital filter structure and related method of digital filtering are presented. The digital filter structure is arranged to receive one or more clocked input signals having a first clock rate, and which is driven at a second clock rate higher than said first clock rate. The digital filter structure has a plurality of delay elements and multiplexing circuitry arranged to selectively engage the delay elements such that, at every clock cycle of the digital filter structure, a filter operation is performed on a different stream of data. The disclosure can be applied in many different contexts. One particular implementation example is that of an adaptive noise cancellation (ANC) system using sigma-delta infinite impulse response filters. In this context the present disclosure minimizes latency and hardware implementation area by requiring only one filtering circuit for multiple channels of data to be filtered.

Abstract: The device includes a housing fastenable to a subject's upper arm wherein housing and upper arm have parallel longitudinal axes. The housing accommodates a control circuit including a processing unit, a physiological sensor and an acceleration sensor for providing a sensor signal and an acceleration signal, respectively to the processing unit. The processing unit includes an evaluation function for evaluating the sensor signal and providing a detection signal, a generator function generating a signal indicative of an occurrence of an epileptic seizure from said detection signal, a posture determination function using the acceleration signal and arranged within the housing for establishing an angle between the housing's longitudinal axis and a gravity vector, and for determining whether the angle is within a predetermined range corresponding to the upper arm lying down. The evaluation function further reduces a sensitivity of evaluating the sensor signal when the angle is within the predetermined range.

Abstract: Surveillance method and system for monitoring a location. One ore more sensors, e.g. camera's, are used to acquire sensor data from the location. The sensor data is processed in order to obtain an extracted object list, including object attributes. A number of virtual objects, such as a virtual fence, are defined, and a rule set is applied. The rule set defines possible responses depending on the list of extracted objects and the virtual objects. Rule sets may be adapted, and amended responses may be assessed immediately.

Abstract: Transmitter (1) and receiver (3) for transmission of data in e.g. a surveillance system. A stream of data from a data source (6) is transmitted to a data destination (3) using a nominal bandwidth. The instantly available bandwidth is determined and when the instantly available bandwidth is smaller than the nominal bandwidth the stream of data is divided in a first part and a second part. The first part is transmitted and stored at the data destination (3), while the second part is stored at the transmitter (3). When the instantly available bandwidth is larger than the nominal bandwidth the second part is retrieved and transmitted. At the data destination (3), the first part is retrieved for merging the first part and second part to obtain the original data stream.