Abstract: A folding adaptive equalizer is provided. The equalizer comprises an equalizer core and an automatic gain control loop. The equalizing transfer function of the equalizer core is modulated by one or more gain control signals generated by the automatic gain control loop and by a folding signal generated by the automatic gain control loop. When the folding signal is inactive, an increase in the gain control signals produces an increase in the high-frequency, high-bandwidth gain of the transfer function of the equalizer core. When the folding signal is active, further gain can be applied by decreasing the gain control signals, which produces a frequency-shift in the transfer function of the equalizer core toward lower bandwidth and an increase in the high-frequency, low-bandwidth gain of the transfer function of the equalizer core.

Abstract: The present disclosure provides a method of device selection using sensory input and portable electronic device configured for same. In accordance with one example embodiment, there is provided a method for use in a portable electronic device for selecting a peripheral device for connection with the portable electronic device, comprising: measuring a magnetic field within the vicinity of the portable electronic device; determining a relative location of at least two available peripheral devices in accordance with magnetic fields uniquely associated with the at least two available peripheral devices; selecting a peripheral device from the at least two available peripheral devices in accordance with the measured magnetic field; and connecting the portable electronic device to the selected peripheral device using a wireless communications path.

Abstract: A method of input and device are provided. The device includes a housing having a front face exposing a display, a back face opposing the front face, and a plurality of sides. The sides include a first side and a second side. The device includes a controller and a first sensing layer located within the housing along the first side. The first sensing layer includes a first position sensing layer extending longitudinally along the first side. The first position sensing layer is coupled to the controller to provide position input. The first sensing layer also includes a first pressure sensing layer. The first pressure sensing layer is coupled to the controller to provide pressure input.

Abstract: The present disclosure provides a portable electronic device having a concealed jack socket. In accordance with one example embodiment, the portable electronic device comprises: a housing including a main body and a hatch movable between a fully open position and a fully closed position; a jack socket received within the housing, the jack socket defining a cavity for receiving a jack plug; wherein the hatch is pivotably connected to the main body to move from the fully closed position to the fully open position in response to insertion of the jack plug, wherein the jack socket is hidden in the fully closed position and exposed in the fully open position.

Abstract: A method and mobile communication device for generating dual-tone multi-frequency (DTMF) commands on a mobile communication device having a touchscreen are provided. In accordance with one embodiment, there is provided a method for generating dual-tone multi-frequency (DTMF) commands on a mobile communication device having a touchscreen, comprising: detecting an automated attendant during a telephone call; activating speech recognition in respect of incoming voice data during the telephone call in response to detecting an automated attendant; translating spoken prompts in the incoming voice data into respective DTMF commands; displaying a menu having selectable menu options corresponding to the DTMF commands In a graphical user interface on the touchscreen; receiving input selecting one of the menu options; receiving input via the touchscreen activating a selected one of the menu options; and generating a DTMF command in accordance with the activated menu option.

Abstract: Rather than managing a certificate chain related to a newly issued identity certificate at a terminal to which a wireless device occasionally connects, a certificate server can act to determine the identity certificates in a certificate chain related to the newly issued identity certificate. The certificate server can also act to obtain the identity certificates and transmit the identity certificates towards the device that requested the newly issued identity certificate. A mail server may receive the newly issued identity certificate and the identity certificates in the certificate chain and manage the timing of the transmittal of the identity certificates. By transmitting the identity certificates in the certificate chain before transmitting the newly issued identity certificate, the mail server allows the user device to verify the authenticity of the newly issued identity certificate.

Abstract: A method and electronic device for activating components based on predicted device activity. The method and device include maintaining a set of device activity information storing data collected from components in the device. The device activity information may be maintained over a predetermined time period and may include times associated with the collected component data. The device activity information may include data regarding scheduled events. Device activity and the appropriate activation state of a component on the device may be predicted based on the current time, current data collected from components in the device and data in the device activity information.

Abstract: A handheld electronic device having a slide-and-twist mechanism for changing between multiple device positions is provided. A slide-and-twist style form factor allows the device configuration and/or exposed input devices to be changed by the device user. The different device positions may support different operational modes or uses of the device by exposing different input devices.

Abstract: Execution of the Elliptic Curve Digital Signature Algorithm (ECDSA) requires determination of a signature, which determination involves arithmetic operations. Some of the arithmetic operations employ a long term cryptographic key. It is the execution of these arithmetic operations that can make the execution of the ECDSA vulnerable to a power analysis attack. In particular, an attacker using a power analysis attack may determine the long term cryptographic key. By modifying the sequence of operations involved in the determination of the signature and the inputs to those operations, power analysis attacks may no longer be applied to determine the long term cryptographic key.

Abstract: A method is provided on an electronic communications device having a subscriber identifier, the method for identifying a contact entry associated with an electronic communication specified by a communication identifier. The method comprises searching an address book associated with the device; in response to finding a first and a second contact entry each having a respective first contact communication identifier matching the communication identifier, comparing a second contact communication identifier with the subscriber identifier; and identifying the second contact entry associated with the electronic communication if the second contact communication identifier in the first contact entry matches the subscriber identifier.

Abstract: A voltage level shifter with an input transistor pair, a cross-coupled load chain transistor pair and a pair of current sources, effects reduced power consumption through the use of the cross-coupled load chain transistor pair to minimize the DC current component present in known voltage level shifters. In specific embodiments, feedback elements may be used to minimize delays in signal transitions. A reference voltage that corresponds to a current capability of the input transistor pair may be used to regulate the current sources in the load chain. Changes in a swing of the input signal voltage received by the input transistor pair may be reflected in corresponding changes to the reference voltage. The voltage level shifter may be of particular use in a buffer.

Abstract: Disclosed is a method of forming a heat exchanger turbulizer apparatus including a member having a longitudinal axis, a lateral width and a plurality of strips including first strips and second strips, each strip extending widthwise and being corrugated longitudinally so as to form a plurality of laterally spaced-apart sections connected to one another by bridges projecting from the sections in a common direction, the bridges of the first and second strips extending in the same direction and the corrugations of the second strips being offset laterally from the corrugations of the first strips. The method comprises: crimping longitudinally-corrugated strip material between first and second forming dies to form said apparatus, said dies being adapted such that substantially all lateral movement of strip material in crimping results from strip material being drawn laterally by material that has been displaced in a direction parallel to the direction of die movement.

Abstract: Navigation between a plurality of property sheets on a display of a mobile electronic device, each of the property sheets having a tab index and a layout defining a plurality of elements. One of the property sheets is a displayed property sheet and one of the elements is a current active element. Navigation includes (i) storing the tab index of the displayed property sheet as a current tab index; (ii) detecting a soft key event; regardless of which of the elements is a current active element, (iii) modifying the current tab index based on a soft key identifier of the soft key event to create an updated tab index; and (iv) displaying another property sheet of the plurality of property sheets on the display, the another property sheet having a tab index equal to the updated tab index.

Abstract: An electronic mobile device that includes a controller including at least one processor, for controlling operation of the mobile device, a display coupled to the controller, and a navigational input mechanism coupled to the controller and responsive to user manipulation thereof. The controller, in one input mode, moves a selection marker on a user interface screen on the display in response to user manipulation of the navigational input mechanism, and in a second input mode, authenticates a user of the device in dependence on a sequence of input events resulting from user manipulation of the navigational input mechanism matching a predetermined passcode sequence.

Abstract: A multimedia playback calibration method includes a calibration module operating on a mobile communications device to cause it to: introduce test data at a first end, in the mobile device, of a playback path and receive data, played back by a playback device at a second end of the playback path, at a sensor integral to the mobile device; compare the received data against the test data to determine a characteristic of the playback path; and configure the mobile device to compensate for this characteristic. The mobile device may comprise a handheld casing enclosing a central processing unit, a multimedia player module for initiating playback of at least one data stream on a playback device, communication capability for forwarding the at least one data stream from the mobile device to the playback device along a playback path and the calibration module.

Abstract: Prompting user confirmation of an action in a display window on a display of a mobile electronic device including displaying a pair of soft key icons, receiving a request to initiate an action from a user and displaying a confirmation message to confirm that a user wishes to proceed with the action. When the confirmation message is displayed, the pair of soft key icons are modified to create a pair of updated soft key icons. The receiving of the request may include detection of a soft key event. The updated soft key icons provide a first response and a second response to the confirmation message for selection by the user. The soft key icons and updated soft key icons may be displayed at the bottom portion of the display in a manner that does not obstruct the display window.

Abstract: A mobile wireless device for use in a wireless network, wherein the wireless network includes regular access points and border access points. The border access points are those access points situated at the edge of the campus or other physical facility associated with the wireless network and they define the edge of the coverage area of the wireless network. The mobile wireless device predicts a possible drop of an active service due to loss of coverage by recognizing when it has connected with a border access point. A warning is output to the user of the mobile wireless device. The mobile wireless device may further recognize if it is located on the exterior side of the border access point away from the interior of the wireless network.

Abstract: A microphone boot for a portable electronic device and a portable electronic device having such a microphone boot are provided. In accordance with one embodiment, there is provided a portable electronic device, comprising: a printed circuit board (PCB); a microphone attached to the PCB and defining an aperture therein; a frame enclosing the microphone and PCB and defining an opening therein; a cap attached to the frame and defining an aperture therein; and a microphone boot received in the opening in the frame and defining an acoustic channel between the aperture in the microphone and the aperture in the cap.

Abstract: In a certification request, a user device includes an object identifier. When a certification authority generates an identity certificate responsive to receiving the certification request, the certification authority includes the object identifier, thereby allowing improved management of the identity certificate at the user device and elsewhere.

Abstract: A device and method for placing the device in a locked state having an associated set of permitted tasks so as to permit the device owner to share the device with others but maintain security over aspects of the device. A task change request is evaluated to determine whether the requested task is permitted and, if so, the requested task is allowed; if not, then an authorization process is invoked to prompt the user to input authorization data. Upon verification of the authorization data, the device may be unlocked and the requested change implemented. The permitted tasks may designate specific applications, specific operations or functions within applications or at the operating system level, one or more currently open windows, and other levels of granularity.