Abstract: A mobile device configured to estimate the speed at which it is moving. The mobile device includes a timing component configured to perform a plurality of Doppler shift measurements on a timing signal received by the mobile device. The mobile device also includes a processing component configured to correlate the size of the range of the plurality of Doppler shift measurements to the speed at which the mobile device is moving.

Abstract: A user equipment (UE) is disclosed. The UE includes a processor configured to begin channel quality indicator (CQI) transmissions using an assigned periodic CQI reporting resource before the start of the on-duration of a discontinuous reception (DRX) operation mode.

Abstract: A system and method for generating a security indicator on a display of a computing device (e.g. a mobile device), to indicate when the computing device is in a secure state while locked. A determination is made (e.g. by a data protection system) as to whether at least some of the secure data stored on the computing device can be decrypted by any applications on the computing device, while the computing device is in the locked state. An icon or other identifier can be displayed to indicate that the secure state has been attained. In one embodiment, the secure state is considered to have been attained, if it is determined that all tickets that have been issued to applications on the computing device while the computing device was unlocked have been released, and any decrypted encryption keys that may be used to decrypt the secure data have been deleted.

Abstract: A challenge response scheme authenticates a requesting device by an authenticating device. The authenticating device generates and issues a challenge to the requesting device. The requesting device combines the challenge with a hash of a password provided by a user, and the combination is further hashed in order to generate a requesting encryption key used to encrypt the user supplied password. The encrypted user supplied password is sent to the authenticating device as a response to the issued challenge. The authenticating device generates an authenticating encryption key by generating the hash of a combination of the challenge and a stored hash of an authenticating device password. The authenticating encryption key is used to decrypt the response in order to retrieve the user-supplied password. If the user-supplied password hash matches the stored authenticating device password hash, the requesting device is authenticated and the authenticating device is in possession of the password.

Abstract: Increasing security for a hand-held data processing device with communication functionality where such a device includes an access-ordered memory cache relating to communications carried out by the device. The hand-held data processing device has a locked state that is entered by the device receiving or initiating a trigger. On occurrence of the trigger to enter the locked state the memory cache is reordered so as to disrupt the access-ordering of the cache to obscure device traffic information and thus increase the security of the device in the locked state.

Abstract: An electronic device includes password protected functionality using a password that can be changed by the user. A user-specified password is stored in association with unique version data that is subsequently provided to help user recall of the password associated therewith.

Abstract: A method for compressing electronic mail messages each having a message thread for storage in a storage device, comprising: identifying one or more sections of each message thread; assigning a respective identifier to each section; storing one occurrence of each section in the storage device for retrieval using its identifier; replacing each section in each thread by its identifier to thereby compress the messages; and, storing the messages in the storage device.

Abstract: A method and apparatus for best service rescan scheduling on a mobile device operating in an EVDO hybrid mode, the method comprising the steps of: blocking a best service rescan on the mobile device if the mobile device in an EVDO traffic state, the mobile device characterized by blocking means, the blocking means enabled to block a best service rescan on the mobile device if the mobile device in an EVDO traffic state.

Abstract: An access point is to handle received broadcast or multicast traffic as multiple instances of unicast traffic, where each instance is destined for a corresponding wireless client device associated with the access point. A client device may adjust its listen interval parameter according to predefined considerations, for example a charge level of a battery to power the client device and an expected usage model for the device. A client device may initiate a reassociation request to inform the access point of its adjusted listen interval parameter.

Abstract: The present specification provides, amongst other things, a method and system for navigating content. In an embodiment a portable electronic device is provided having a browser application and a native menu application. The embodiment also includes a network that interconnects a web-server and said portable electronic device. The web-server hosts web pages that include menus and content. The portable electronic device is configured to obtain a schema respective to the web-pages whereby the web-page menus can be generated on the portable electronic device using the native menu application rather than the browser application, thereby permitting navigation of content on the portable electronic device via the native menu application.

Abstract: Protection of real-time data such as voice data exchanged as packets between a mobile electronic device and a VPN gateway during a media session over a communications link that includes a wireless network. A first VPN connection is established between the mobile electronic device and the VPN gateway through the communications link, the first VPN connection using key-based encryption to protect data exchanged therethrough. While the first VPN connection is established, a second VPN connection is established between the mobile electronic device and the VPN gateway through the communications link, the second VPN connection using key-based encryption to protect data exchanged therethrough. Real-time data packets are exchanged between the mobile electronic device and the VPN gateway through the second VPN connection.

Abstract: A router system maintains a status of a wireless device of either available or unavailable. The status of available may be indicative of the wireless device being in-coverage with a wireless network, whereas the status of unavailable may be indicative of the wireless device being out-of-coverage with the wireless network. The router system is adapted to receive, from a host service, a user data message that is addressed to an address of the wireless device. The user data message has a user data payload and one or more request parameters, where the one or more request parameters instruct the router system on whether to return at least a portion of the user data message to the host service when the device status is unavailable. In response to the user data message being received at the router system when the device status is available, the router system delivers the user data message to the wireless device via the wireless network.

Abstract: Two or more connection profiles stored in a wireless device are partitioned into two or more groups, each group having a different number of sleep intervals associated therewith. The number of sleep intervals associated with a particular group determines a wait between subsequent scans for wireless local area networks matching any profile in that particular group. One or more factors may be taken into consideration when determining how to partition the profiles into groups, including, for example, a connectivity history of the wireless device.

Abstract: This relates to a mobile instant messaging device for communicating instant messages with different instant messaging communities. The device includes a display that displays community-specific icons, each icon specifying a different one of the instant messaging communities. A database stores characteristics of each of the communities. An instant messaging application is configured to communicate instant messages, with a member of the community of any of the icons selected by a user of the device, in conformity with the characteristics stored in the database for that community.

Abstract: A system and method of providing a clock signal to a navigation satellite receiver in a device is disclosed. A clock signal generated by a voltage controlled temperature compensated crystal oscillator (VCTCXO) in a cellular engine of the same device is appropriated to clock a numerically controlled oscillator (NCO) programmed to generate an adjusted clock signal suitable for use in receiving signals from navigation satellites and to heterodyne them down to baseband or an intermediate frequency for processing. Preferably, if the cellular engine has an automatic frequency control (AFC) module for adjusting the voltage control input to the VCTCXO to compensate for a change in the operating environment of the cellular engine, the AFC module modifies the control word in the NCO to counteract such adjustment so that the adjusted clock signal provided to the navigation satellite receiver is not unduly impacted.

Abstract: A mobile wireless communications device may include a portable housing, a dielectric substrate carried by the portable housing having a front side facing toward a user and a back side opposite the front side, and a ground plane carried by the dielectric substrate. The device may further include at least one circuit carried by the dielectric substrate, and an antenna carried by the dielectric substrate adjacent an end thereof and electrically connected to the at least one circuit. A ground patch may be adjacent the front side of the dielectric substrate that is electrically connected to the ground plane and spaced apart from and at least partially overlapping the antenna.

Abstract: An antenna and a wireless mobile communication device incorporating the antenna are provided. The antenna includes a first conductor section electrically coupled to a first feeding point, a second conductor section electrically coupled to a second feeding point, and a near-field radiation control structure adapted to control characteristics of near-field radiation generated by the antenna. Near-field radiation control structures include a parasitic element positioned adjacent the first conductor section and configured to control characteristics of near-field radiation generated by the first conductor section, and a diffuser in the second conductor section configured to diffuse near-field radiation generated by the second conductor section into a plurality of directions.

Abstract: Resource bundles are provided that contain localized resources that a handheld device can use to adapt an application to the current locale of the hand-held electronic device. The resource bundles can be stored in a remotely-located server and downloaded over a network to the hand-held electronic device on request. Alternatively, a hand-held device can store resource bundles for multiple locales and choose a resource bundle that is appropriate for its current locale. A resource bundle can be used to allow a hand-held device to automatically adapt an application to the current locale such as by identifying an entered character sequence that matches a predetermined sequence associated with the current locale of the hand-held device, choosing an article for use with a word that is grammatically correct for the language associated with the current locale, and automatically replacing the character sequence with the article.

Abstract: Apparatus and methods for managing data used by mobile devices. Data can be retrieved from a second computing device (e.g. a server) where it is stored on a storage medium (e.g. a disk). A subset of the data of a data record stored in the storage medium, or one or more pointers to the data of a data record stored on the storage medium is stored in a memory of the mobile device so that it is not necessary to store a given data record in its entirety in the memory of the mobile device.