Abstract:
A system for accomplishing the transmission of a multimedia stream between at least a transmitter (3) and at least a receiver (5). The multimedia stream comprises an audio/video stream with at least an information stream associated thereto. To at least some of the objects included in the multimedia stream is associated a respective description and space-type characterisation, so that each receiver (5) is able to interact with the aforesaid objects changing their space-time position relative to the other stream independently from the transmitter (3) and from the other receivers. Preferential application to remote teaching techniques.
Abstract:
The present invention is related to a method of transferring data in an electronic circuit (10) incorporating a control unit or CPU (21), first circuit blocks (41) and second circuit blocks (61) interconnected by means of a BUS (24). The method and the relating circuit envisage the use of interface devices (45a) and/or (45b), associated to respective circuit blocks, and capable of managing the direct transfer of data from the first block (41) to the second block (61), or vice-versa, without the control by the CPU (21) during such a transfer. For the purpose of this method, and relating circuit (101), interface device (45a) must be, able to intercept control commands issued by CPU (21) and to directly manage the data transfer from the first block (41) to the second block (61) .Thus, the method and the circuit (101), and the interface device (45a) make it possible to considerably reduce the load of CPU 21, BUS 24 and electronic circuit (101) as well.
Abstract:
An information stream with video (V), audio (A) and data (D) components assembled in access units (Vtn, Atn, Dtn) with associated respective meta-information is transmitted on a set of communication channels (Cj), such as different lines of a mobile communication network. The stream is arranged in packets each of which contains at least a segment of access unit and a header (H). The header (H) in question comprises a first set of fields (HS), which represents the meta-information associated to the related access unit (s), and a second set of fields (HG), comprising general validity fields, independent from the information stream. Typically, these are fields that convey the following information: number (PN) of the packet in the order of transmission, identifier (CH) of the channel that carries a particular stream, length (L) of the data packet as well as check, for instance of the checksum type (CK). Preferably, the latter field is related to all the data of the header (H), except the check field itself.
Abstract:
At least one camera station (1, 2), which is usually mobile, is provided in order to generate television picture signals. These picture signals are coded in coded digital form so as to produce a coded digital signal at output (62) whose bit rate can be selectively varied. The camera station (1) is associated with at least one mobile telephony channel (41, 42, ... , 4n) which can be selectively activated in order to provide a transmission capacity which is available at that moment. The coded signal is transmitted, selectively adapting its bit rate to the transmission capacity available at that moment. The number of mobile telephony channels (41, 42, ... , 4n) that can be activated can also be selectively increased in order to increase available transmission capacity.
Abstract:
The method in accordance with the invention makes it possible to replace the programming conditions of a server (s) in real time, proceeding in such a way that the process which is to be replaced (1) coexists for a certain period of time with the replacement process (1'). The duration of this operation is decided by the replaced process (1), and it is possible to determine when the transactions which are already under way in the process which is to be replaced (1) have been completed.
Abstract:
The method involves generating a model configuration (M1) of the nodes in the network (N) comprising, for each function among a plurality of node functions, a respective model of the function's operation. For each of the nodes under test, a respective set of data ( ..., CF K-1, CF k , CF k+1 , ... ) regarding the current configuration of the node is collected. This respective set of current configuration data is compared with the model configuration (M1) in the absence of interaction with the node under test. For some or all of the node functions, it is envisaged that this comparison will be carried out by simulating - step by step if desired - the operation of node functions, again in the absence of interaction with the node under test.
Abstract translation:该方法包括生成网络(N)中的节点的模型配置(M1),包括对于多个节点功能中的每个功能,功能的操作的相应模型。 对于被测节点中的每一个,收集关于节点的当前配置的相应的数据集(...,CF> K-1, k <,CF> k + 1,...) 。 在不与被测节点进行交互的情况下将该组当前配置数据与模型配置(M1)进行比较。 对于部分或全部节点功能,可以设想通过如果需要,逐步模拟 - 节点功能的运行,再次在与被测节点不相互作用的情况下,进行该比较。
Abstract:
The present invention relates to a system (10) in which a telephone set (16) is capable of using access devices or apparatuses (12) and a network such as the Internet (80) to access multimedia structures consisting for example of automatic answering messages or of messages that can be interpreted by a speech synthesis device, said structures being stored in a storage device (15). The invention also relates to the method for implementing the system (10) and to the generation equipment (14) capable of producing the multimedia structures to be instantiated by means of the telephone set (16) and the access device (12). In particular, the system (10) and method make it possible to implement universal automatic answering machines, i.e., answering machines that are capable of managing a plurality of answer message structures stored in a single device (15) and accessible by means of access devices (12) distributed on the network (80) or in the telephone sets (16).
Abstract:
An iterative multiplier circuit (10) comprises modules (15 to 18) that subdivide the respective input signals (Z n , J n ) into a first part (msb(Z n ), msb(J n )) that is the power of 2 immediately lower or equal to the input signal and a second part (Z n -msb(Z n ), J n - msb(J n )) corresponding to the difference between the input signal and the aforesaid first part. A shift module (19) generates a respective output signal through shift operations that implement the multiplication operation for numbers that are powers of 2. The circuit operates according to a general iterative scheme in which at each step three components of the output signal (X.Y) are computed, corresponding to the product of two numbers that are powers of 2 and to two products in which at least one of the factors is a power of 2. The number of steps in the iteration scheme is controllable, thus allowing to vary the accuracy with which the output value (X.Y) is calculated.
Abstract:
The system includes a first database (DBli) that collects first data relating to the access of customers to networks which envisage authentication, authorisation and accounting (AAA) procedures. The system makes also use of a plurality of cache memories (CDN), organised according to a Content Delivery Network architecture. The Log files of the cache memories (CDN) involved defines a second database (DB2) containing access data relating to the network access modalities from the users and to the relating content to which the users had access. A data acquisition block (1) interworks with the above cited databases, DBli, DB2, so as to generate access documentation reports (R1, R2, ) capable of identifying the users having access to the network in a correlated way and to the network content they have accessed. A preferential application to the production of customised reports for Content Providers (CP.), Internet Service Provides (ISP) and/or users/clients (C).
Abstract:
The present invention relates to a portable apparatus for the vision of images comprising a supporting structure (11) to be applied on a user's head substantially in the form of eyeglasses, a display device (13a, 13b) fitted on said structure having a display surface (51-58) on which spatial distributions of light emissions are generated and a control unit (30) capable of driving the display device (13a, 13b) in order to generate on the display surface (51-58), positioned before the eye, centered on its optical axis at a distance substantially equal to the focal distance of the cornea-lens system, a spatial distribution of light emissions, substantially corresponding to the Fourier transform of the image to be made visible.