Abstract: An access rights management system is presented in which a mobile device may be allowed to access corporately held data in a flexible manner but in which the security and integrity of the data is maintained. The mobile device is provided with a rights adjustment module which modifies the access rights for locally stored corporate data in dependence on the connectivity of the mobile device with a corporate server.

Abstract: An access rights management system is presented in which a mobile device may be allowed to access corporately held data in a flexible manner but in which the security and integrity of the data is maintained. The mobile device is provided with a rights adjustment module which modifies the access rights for locally stored corporate data in dependence on the connectivity of the mobile device with a corporate server.

Abstract: Apparatus for patching a control program in a processor which executes a control program stored in non-volatile memory, and which has access to a plurality of patch routines. The apparatus comprises storage for storing trap addresses each of which is associated with the address of a patch routine; a comparator for comparing the address of the program counter with the patch addresses; and a diverter for responding to a positive comparison by diverting the control program to the patch routine whose address is associated with the trap address that gave rise to the positive comparison. Each trap address is associated with one of the possible operating states of the processor. The apparatus includes a selector for selecting a predetermined number of trap addresses from the trap addresses stored in the storage so as to select trap addresses that are associated with the current operating state of the processor. The comparator compares the address in the program counter with the selected addresses only.

Abstract: In a method and a device for correcting a frequency offset between a receive signal and a reference signal, the receive signal, being fed to a frequency converter which also receives a conversion signal in order to produce a transposed signal, the conversion signal is produced by a local oscillator in response to a control signal. The device initializes the control signal according to the reference signal. An estimator receives the transposed signal and the control signal and produces repetitively an estimate of the frequency offset comprising the sum of a correction value and an adjustment value respectively greater than and less than a predetermined correction threshold. The control signal is modified in response to the correction value. The transposed signal is connected using at least one of the successive estimates.