Abstract: The aim of this invention is to control the change of a security module and deactivate the apparatus in the event of the non-authorized removal or replacement of said module. A protection device for a security module connector is proposed, said connector forming part of an acceptor placed on a printed circuit board and integrated into an apparatus whose functioning, controlled by a processor, depends on the security module connected to the acceptor. The device comprises a first part made up of a label attached in a way to block the security module on the printed circuit board, said label including at least one chip and a first antenna. The device further comprises a second part positioned in the vicinity of the connector, said part including a second antenna of a transducer in communication with the apparatus processor. The chip of the label is able to exchange digital signals by means of the first antenna with the second antenna.

Abstract: The aim of this invention is to propose a flexible solution to the risk represented by the interception of data by an unauthorized party during the transmission of said data between a broadcast center and a specialized decryption/decompression circuit such as is used in a Pay-TV decoder. This aim is achieved by a data transmission method involving a broadcast center or diffusion center, a management center and a multimedia unit, the latter comprising at least one unique key and a security module having a transport key.

Abstract: The present invention proposes an encryption/decryption method able to resist against various attack strategies such as Simple Power Analysis, Timing Analysis or Differential Power Analysis. The method is carried out by a plurality of encryption/decryption modules arranged in series, wherein an encryption/decryption module, different from the first module, starts encryption/decryption operations as soon as said module receives a part of the results of encryption/decryption operations from the immediately preceding encryption/decryption module.

Abstract: This invention concerns a safe data exchange method between two devices locally connected to one another. In a preferred embodiment, the first device (10) is a security module containing a first encrypting key, said private key (PAKV) of a pair of asymmetric encrypting keys. The second device is a receiver (11) comprising at least one second encrypting key, said public key (PAKB) of said pair of asymmetric encrypting keys. Furthermore each of the devices comprises a symmetrical key (13). The first device (10) generates a first random number (A), which is encrypted by said private key (PAKV), then transmitted to the second device (11), in which it is decrypted by means of the public key (PAKB). The second device (11) generates a second random number (B), which is encrypted by said public key (PAKB), then transmitted to the first device (10), in which it is decrypted by means of the private key (PAKV).

Abstract: The aim of this invention is to control the change of a security module and deactivate the apparatus in the event of the non-authorized removal or replacement of said module. A protection device for a security module connector is proposed, said connector forming part of an acceptor placed on a printed circuit board and integrated into an apparatus whose functioning, controlled by a processor, depends on the security module connected to the acceptor. The device comprises a first part made up of a label attached in a way to block the security module on the printed circuit board, said label including at least one chip and a first antenna. The device further comprises a second part positioned in the vicinity of the connector, said part including a second antenna of a transducer in communication with the apparatus processor. The chip of the label is able to exchange digital signals by means of the first antenna with the second antenna.

Abstract: The aim of this invention is to propose a flexible solution to the risk represented by access to a temporary memory of a specialized decryption/decompression circuit for a Pay-TV decoder.

Abstract: Method and a device for guaranteeing the integrity and authenticity of data transmitted between a management center and one or several receiver units, wherein each receiver unit comprises a decoder (IRD) and a security unit (SC) and means for communicating (NET, REC) with the management center. The method consists in calculating a check information (Hx) representative of the result of a unidirectional and collision-free function, performed on all or part of the transmitted data and in transmitting the result to the management center for verification. The center will be able to inform the decoder concerning the authenticity of the data through return channels or through the main channel.

Abstract: Method and a device for guaranteeing the integrity and authenticity of data transmitted between a management center and one or several receiver units, wherein each receiver unit comprises a decoder (IRD) and a security unit (SC) and means for communicating (NET, REC) with the management center. The method consists in calculating a check information (Hx) representative of the result of a unidirectional and collision-free function, performed on all or part of the transmitted data and in transmitting the result to the management center for verification. The center will be able to inform the decoder concerning the authenticity of the data through return channels or through the main channel.

Abstract: The aim of this invention is the use of a mobile telephone or mobile equipment for localized interactive functionalities and to demonstrate to a local device that a certain individual is indeed the holder of a given telephone number.

Abstract: The aim of this invention is to increase the efficiency, precision and rapidity of a sample survey so that it becomes an accessible instrument and easy to use by a large number of institutions. Furthermore, the sample survey method must guarantee a random choice of individuals to be polled according to predefined criteria always maintaining said individuals' anonymity.

Abstract: An optical signal quality monitoring system and method are provided for monitoring signal quality of a plurality of optical signals in a network. The system includes a plurality of input taps for acquiring multiple optical signals from multiple optical fibers of an optical network. The system also includes an optical switch for receiving the tapped optical signals and selecting one of the tapped optical signals at a time as an output, and an optical channel selector for selecting one signal channel at a time of the selected optical signal. The system further includes an optical signal quality measurement device for analyzing the selected optical channel of the selected optical signal and determining a signal quality of the selected optical channel.

Abstract: A selective routing cross-connect device comprises a switch array, together with a phasar. The phasar comprises an array of channel waveguides, and first and second slab waveguides. A main input feeds a wavelength division multiplexed (WDM) signal into the first slab waveguide so that demultiplexed outputs corresponding to an mth diffraction order exit the second slab waveguide. First and second further waveguides feed respective sets of demultiplexed signals back into the second slab waveguide at positions offset from said mth diffraction order (preferably at locations slightly offset from the adjacent diffraction orders). The first further waveguide supplies those demultiplexed signals which are to remain in the main channel, together with any added signals, whereas the third waveguide supplies those demultiplexed signals which are to be dropped. Selection of component signals for maintenance, adding or dropping is performed by control of the switch array.

Abstract: A communication system for point-to-point communications of content such as video files in a video on demand system employs one or more keys specific to a user. Upon receiving a request including a specific user ID for a content, the transmission end uses the specific key corresponding to the user to encrypt control words that are transmitted to the user, to encrypt control words before they are used to encrypt the content at the transmission end, to encrypt the content itself, or some combination of the foregoing. A user unit performs the reverse operation using one or more specific keys stored in the user unit and/or a security module associated with the user unit. The user unit also uses a specific key to encrypt any content that is stored at the user unit.

Abstract: The objective of the present invention is to propose a method to prevent that the decryption of a keys file of a group of data stored in a storing unit (DB) of a decoder (STB), the latter comprising a security module (SM), allows many bad intentioned users to benefit illegally from this product.

Abstract: A flexible multiple compartment pouch (1) comprising at least a first and second compartment (2, 3) wherein the first compartment (2) comprises a first liquid composition and the second compartment (3) comprises a second liquid composition and wherein the first and second liquid compositions react chemically when mixed.

Abstract: A multiple compartment flexible pouch which, when comprising compositions, is designed to be used to refill a multiple compartment container. The multiple compartment pouch comprises at least a first and at least a second compartment, at least a first dispensing channel sealed into an opening in the first compartment and at least a second dispensing channel sealed into an opening in the second compartment. In a preferred embodiment the first and second dispensing channels form part of a dispensing channel unit.

Abstract: Multiple uses are made available with an optical component (10) that is based on a fiber Fabry-Perot resonator (12). The optical component (10) includes substrate (14) having a variable length (16) for supporting and tuning the Fabry-Perot resonator (12) by varying the variable length (16) of the substrate (14) in response to a variable stimulus. A plurality of fiber retainers (22) are disposed on the substrate (14) for mounting and aligning the fiber Fabry-Perot resonator (12). To fix the position of the fiber Fabry-Perot resonator (12) relative to the substrate (14) and to define the variable length (16), a pair of binders (24) are disposed on the substrate (14) proximate selected opposed pairs (221 and 222) of the plurality of the fiber retainers (22).

Abstract: A selective routing cross-connect device comprises a switch array, together with a phasar. The phasar comprises an array (1) of channel waveguides, and first (2a) and second (2b) slab waveguides. A main input feeds a wavelength division multiplexed (WDM) signal into the first slab waveguide (2a) so that demultiplexed outputs corresponding to an mth diffraction order exit the second slab waveguide (2b). First and second further waveguides feed respective sets of demultiplexed signals back into the second slab waveguide (2b) at positions offset from said mth diffraction order (preferably at locations slightly offset from the adjacent diffraction orders). The first further waveguide supplies those demultiplexed signals which are to remain in the main channel, together with any added signals, whereas the third waveguide supplies those demultiplexed signals which are to be dropped. Selection of component signals for maintenance, adding or dropping is performed by control of the switch array.

Abstract: A hand held dosing and dispensing device for the pretreatment of fabrics is provided. The dosing and dispensing device has a hollow container for storing a liquid. The hollow container has at least one container wall and an inlet. The inlet includes an opening and an inlet wall which extends into the hollow container from the container wall of the hollow container. The inlet wall substantially encircles the opening of the inlet to prevent liquid discharge through the inlet during pretreatment of a fabric. A discharge is attached to the hollow container for dispensing the liquid therethrough for the pretreatment of fabrics. In addition, the opening can include a plurality of flexible and resilient tabs extending radially toward the center of the opening. The tabs are adapted to engage at least a portion of a bottle to secure the dosing and dispensing device to the bottle.