摘要:
A system and method of protecting data on a communication device are provided. Data received when the communication device is in a first operational state is encrypted using a first cryptographic key and algorithm. When the communication device is in a second operational state, received data is encrypted using a second cryptographic key and algorithm. Received data is stored on the communication device in encrypted form.
摘要:
A communication device (and its related method of operation), when accessing password protected voicemail services, may invoke an enhanced security feature which effectively masks at least the password digit values from being discernible by feedback to the user. This is especially important where portable wireless communication devices may have pre-stored password data for use with automated voicemail access—even in a “locked” mode. Unauthorized possessors of such a device might utilize conventional audible feedback during password transmission to decipher the password value. However, such lack of security is avoided by masking the password data values from the audible and/or visual user feedback, if any.
摘要:
Systems and methods of owner application control of an electronic device are provided. Owner application control information is stored on the electronic device and/or one or more remote servers. Owner application control information is consulted to determine if one or more required applications are available for execution on the electronic device. If not, one or more required applications not available are downloaded and installed. This could be in a manner transparent to the user of the electronic device. If one or more required applications are not available on the electronic device, the device can be functionally disabled in whole, or in part, until one or more required applications are available.
摘要:
A differential calorimetric gas sensor (10) which includes a sensing element (12) having a catalytic layer (14) disposed on a multi-layered substrate (26). Catalytic layer (14) includes an active catalyst region (14a) which oxidizes total combustibles within an exhaust gas stream and a reference catalyst region (14b) which oxidizes selective combustibles within the exhaust gas stream. An electrochemical oxygen source (18) is disposed on an opposite side of multi-layer substrate (26) from sensing element (12). An oxygen sensor cell (170) may be incorporated into electrochemical oxygen source (18). The multi-layered substrate (26) includes a plurality of overlaying insulating layers in which an intermediate layer (60) and a bottom layer (64) support primary heaters (58, 62), and in which another intermediate layer (52) supports compensation heaters (50a, 50b). The primary heaters (58, 62) function to maintain sensor (10) at a substantially constant temperature, while the compensation heaters (50a, 50b) function to restore temperature deviations determined by temperature-sensitive elements (46a, 46b) located on an inner layer (48) overlaying the compensation heaters (50a, 50b) resulting from the catalytic reactions taking place at the surfaces (34a, 34b) of the catalyst regions (14a, 14b). The control circuitry (300) operates to control the primary heater (58, 62) and the compensation heaters (50a, 50b), as well as to minimize the response variations of the temperature-sensitive elements (46a, 46b).
摘要:
A calorimetric hydrocarbon gas sensor (10) includes an electrochemical oxygen pump (18), a sensing element (12), and a multi-layered substrate (26) separating the sensing element (12) from the electrochemical oxygen pump (18). The multi-layered substrate (26) includes a plurality of overlying insulating layers, in which at least one intermediate layer (60) supports a first primary heater (58), and in which another intermediate layer (52) supports a temperature compensation heaters (50a, 50b). The primary heater (58) functions to maintain the calorimetric hydrocarbon gas sensor (10) at a constant, elevated temperature, while the active compensation heater (50a) functions to maintain substantially equal temperatures as determined by the thermometers (46a, 46b) located on an intermediate layer (48) overlying the compensation heaters (50a, 50b). Control circuitry is integrated with power measurement circuitry to measure differences in the heat produced by the compensation heater (50a) and the thermometer (46a) in an active region (100), and the heat produced by the compensation heater (50b) and the thermometer (46b) in a reference region (102).
摘要:
A mobile communications device, method, and computer program product for providing security on a mobile communications device are described. In accordance with one example embodiment, the mobile communications device comprises: a processor; a communications subsystem connected to the processor operable to exchange signals with a wireless network and with the processor; a storage element connected to the processor and having a plurality of application modules and data stored thereon, the data comprising at least user application data associated with the application modules and service data including data for establishing communications with the wireless network; and a security module operable to determine if a battery level falls below a predetermined threshold and perform a security action comprising erasing or encrypting at least some of the data on the storage element if the battery power falls below the predetermined threshold.
摘要:
A method for updating an electronic mail (“email”) address book comprising: determining whether an email message presented to a user on a display screen of a data processing system contains address information; and, if the email message contains address information: identifying the address information in the email message; determining whether the address information is contained in one or more contact records in the email address book; and, if the address information is not contained in one or more contact records, presenting first means to the user on the display screen for generating a command to add a new contact record to the address book for the address information.
摘要:
Rendering subject information for a protected message received and stored at an electronic communications device, wherein the message is initially received by the electronic communications device without subject information. Selected information is extracted from the protected message and stored on the electronic communications device as subject information for the protected message.
摘要:
An embodiment relates to a novel apparatus and method for changing modes of notification in an electronic device. An electronic device includes a calendar application and a variety of other applications such as the message reader application or the daily alarm application. The device is configured to use the calendar application to track whether and how the user is notified of the receipt of an electronic message. In one embodiment, the user specifically associates a profile behavior to the calendar entry when the calendar entry is first created.
摘要:
A method is provided for processing a Web page for display on a device in communication with a server when the Web page is selected by a user clicking on a hyperlink. The method comprises the following steps. Text associated with a link label of the hyperlink is stored. The stored text is used to identify a relevant portion of the Web page that is desired by the user. At least a portion of a Web page identified by a link destination of the hyperlink is retrieved. The relevant portion of the Web page is presented to the user. A computer readable medium comprising instructions for executing the method and a computing device configured to execute the instructions are also provided.