Abstract: A method of encryption of data in a digital television system communicated between a first decoder and a portable security module, wherein a precalculated key pair is stored in a memory of the first decoder, wherein the key pair includes a session key and an encrypted version of the session key prepared using a transport key, the encrypted version of the session key being subsequently communicated to the portable security module which decrypts the encrypted version using an equivalent transport key stored in its memory such that data communicated from at least the portable security module to the first decoder may thereafter be encrypted and decrypted by the session key.

Abstract: Disclosed are compounds of the formula wherein the variables RN, RC, R1, R25, R2, and R3 are as defined herein. These compounds have activity as inhibitors of beta-secretase and are therefore useful in treating a variety of discorders such as Alzheimer's Disease.

Abstract: Disclosed are methods for treating Alzheimer's disease, and other diseases, and/or inhibiting beta-secretase enzyme, and/or inhibiting deposition of A beta peptide in a mammal, by use of compounds of formula (1) wherein the variables R1-R8 and X are defined herein.

Abstract: The invention relates to novel compounds and methods of treating diseases, disorders, and conditions associated with amyloidosis. Amyloidosis refers to a collection of diseases, disorders, and conditions associated with abnormal deposition of A-beta protein.

Abstract: This invention relates to prodrugs of a class of amine compounds which are useful in the treatment of Alzheimer's disease and similar diseases.

Abstract: A smartcard for use with a receiver of encrypted broadcast signals comprises a microprocessor for enabling or controlling decryption of said signals. A memory is coupled to the microprocessor. The microprocessor is adapted to enable or control the individual decryption of a plurality of such signals from respective broadcast suppliers of such signals by means of respective dynamically created zones in the memory, the dynamically created zones each being arranged to store decryption data associated with a respective one of said broadcast suppliers.

Abstract: Disclosed are methods for treating Alzheimer's disease, and other diseases, and/or inhibiting beta-secretase enzyme, and/or inhibiting de-position of A beta peptide in a mammal, by use of compounds of formula (I) wherein the variables R1, R2, R3, R4, R5, X1, and X2 are defined herein.

Abstract: A method of transmitting and recording digital data scrambled using a control word. The scrambled data is transmitted together with the control word, and the method includes encrypting the control word with a first key. The encrypted control word is transmitted and received, and then decrypted with a decoder that includes an equivalent of the first key. The control word is re-encrypted with a second key stored in a portable support device that is received by the decoder, and the portable support device may be used with any suitable decoder. The re-encrypted control word and the scrambled digital data are recorded on a digital recording medium. An apparatus for transmitting and recording digital data scrambled using a control word. The scrambled data is transmitted together with the control word, and the apparatus includes a transmitter that encrypts the control word with a first key and transmits the encrypted control word. A decoder receives the encrypted control word and decrypts the control word.

Abstract: The invention relates to acetyl 2-hydroxy-1,3-diaminospirocyclohexanes and derivatives thereof that are useful in treating at least one disease, disorder, and condition associated with amyloidosis. Amyloidosis refers to a collection of diseases, disorders, and condition associated with abnormal deposition of A-beta protein.

Abstract: The invention relates to novel compounds and methods of treating diseases, disorders, and conditions associated with amyloidosis. Amyloidosis refers to a collection of diseases, disorders, and conditions associated with abnormal deposition of A-beta protein.

Abstract: The invention relates to novel compounds and also to methods of treating at least one disease, disorder, or condition associated with amyloidosis using such compounds. Amyloidosis refers to a collection of diseases, disorders, and conditions associated with abnormal deposition of A-beta protein.

Abstract: The invention relates to novel compounds and also to methods of treating at least one disease, disorder, or condition associated with amyloidosis using such compounds. Amyloidosis refers to a collection of diseases, disorders, and conditions associated with abnormal deposition of A-beta protein.

Abstract: The present invention is disubstituted amines of formula (I) and disubstituted amines of formula (II) useful in treating Alzheimer's disease and other similar diseases.

Abstract: The invention provides compounds of formula (I): useful in treating Alzheimer's disease and other similar diseases. These compounds include inhibitors of the beta-secretase enzyme that are useful in the treatment of Alzheimer's disease and other diseases characterized by deposition of A beta peptide in a mammal. The compounds of the invention are useful in pharmaceutical compositions and methods of treatment to reduce A beta peptide formation.

Abstract: The present invention is disubstituted amines of formula (I) and disubstituted amines of formula (II) useful in treating Alzheimer's disease and other similar diseases.

Abstract: Disclosed are compounds of the formula: 1

Abstract: Disclosed are compounds of the formula 1

Abstract: The present invention relates to a method for transmitting information between a transmitter station (100e) and a plurality of receiving stations (100r) wherein encrypted information is transmitted from the transmitter station to the receiver station with a first key and at least a control message bearing a second key. According to the invention, the first key used for decryption is restored in each receiving station from the second key and from at least one datum selected from a set of data available in the receiving stations, according to a selection command periodically transmitted between the transmitting station and the receiving station.

Abstract: A system for transmitting and recording digital data is included. Further, a system for transmitting transmit scrambled audio data that is to be recorded on a mini disc reader is included. A system for transmission and recording of digital data includes transmission means adapted to prepare and transmit scrambled digital data together with at least one encrypted control word and a digital recording device adapted to receive and record the scrambled digital data and encrypted control word on a digital support. The digital recording device further includes an access control means adapted to decrypt the control word and thereafter descramble the digital data during playback.

Abstract: Disclosed are compounds of the formula 1