Abstract: Compensation circuitry includes a resistor and transistor coupled in series with a reference current source to generate a variable reference voltage that is provided, via a voltage regulator, to bias elements of a core circuit in order to establish an operating current in the core circuit. In one embodiment, the resistor and transistor of the compensation circuitry are of similar construction to the bias elements of the core circuit, such that fluctuations in the ratio of the reference current and the operating current of the core circuit are minimized over process, supply voltage and temperature variations. The voltage regulator may be a low dropout regulator. In various embodiments, the core circuit may comprise a resistor biased voltage controlled oscillator, a differential current mode logic (CML) input to single CMOS output circuit, or like circuitry that may be sensitive to phase noise or requires low power operation.

Abstract: A system and method provide for geo-augmentation through virtual tagging. A search infrastructure supports creation, managing and searching geo-coded virtual tags using mobile communication devices. Associated geolocations are added to a geolocation database along with pointers to the stored content. Searching of the geolocation database is performed upon receiving geolocation search input, wherein the infrastructure applies the geolocation based search input to the search database yielding search results delivered from the mobile communications device for presentation to the user.

Abstract: An inverter circuit includes an input stage and an output stage, each including pairs of complementary transistors having low-voltage oxides. The transistors within the input stage are configured to receive the input signal and to provide control voltages in response to input signal voltage variations. The voltage level of one control voltage is clamped between an intermediate voltage and a high voltage, and the voltage level of the other control voltage is clamped between the intermediate voltage and a low voltage. The switching states of each complementary transistor in the output stage arc controlled by the control voltages, which results in an output signal voltage varying between the high and the low voltage. The voltage clamping advantageously allows the inverter circuit to switch between the high and the low voltage level without exceeding a maximum gate-source or a gate-drain voltage rating for any transistor, and without requiring additional passive components.

Abstract: Measures for fading-based control of an antenna radiation pattern. Such measures may comprise reception of at least one radio wave signal via an antenna unit, detection of fading conditions in relation to the received at least one radio wave signal, and control of an antenna radiation pattern of the antenna unit, at least in terms of antenna lobe width, on the basis of the detected fading conditions.

Abstract: In a first embodiment a user equipment (UE) applies a temporary offset to a cell selection and/or a cell re-selection criterion or criteria in response to determining that a condition is satisfied for the UE. Thereafter, the cell is evaluated for selection or re-selection according to the respective cell selection or cell re-selection criterion or criteria with the applied offset. In a second embodiment, a restriction is imposed for evaluating a cell for selection or re-selection in response to determining that a condition is satisfied for the UE; and the restriction is removed in response to determining that the UE is non-stationary. Examples for the condition include the UE speed being less than a threshold, an indication of the offset being in system information, or a failed number of consecutive random access attempts. Examples of the restriction are the first embodiment's offset and barring the cell for selection/re-selection purposes.

Abstract: A method and system for drawing roaming users to a particular virtually tagged location based on associated geolocation virtual tags. Notifications are provided to the user of a mobile communications device at a first location to attract the user to a second location having associated virtual tags. For example, a series of virtual tags trigger at different distance intervals from the virtually tagged posting location to provide the user with periodic directions (i.e., arrows, audible “turn left here”, “only 100 m away”, etc.) drawing the roaming user to the virtually tagged location. Various modes of operation provide the roaming user with customizability based on individual characteristics, behaviors and preferences.

Abstract: A wireless communication device includes a single baseband processor and RF chain for servicing a first and second SIM. Each of the SIMs connects to a different network, and one may be used for one data type while the other is used for another data type. In order to track the connectivity of an inactive first SIM, a controller periodically interrupts service to the second SIM. During its connection, the first SIM monitors the connection to its network. A triggering mechanism and trigger threshold define when a switch to a new cell is needed. The device receives the mechanism and threshold from the network and calculates a modified threshold and/or mechanism is order to reduce a number of potentially missed calls.

Abstract: A transmitter for use in a cable modem termination system includes a data processing module that generates a plurality of OFDM symbols from a data packet. A probe symbol generator generates a probe symbol, as one of a plurality of probe symbol types. The probe symbol is selectively inserted within the plurality of OFDM symbols, at a pre-defined probe symbol interval.

Abstract: A modulator/demodulator apparatus obtains layer 1 measurements and/or estimations for cellular and non-cellular radio performance characteristics, and performs an evaluation based on at least the layer 1 measurements and/or estimations for selecting a connection to cellular or non-cellular radio. The apparatus provides information on results of the evaluation to a connection manager located in an upper layer, for performing a final decision on the connection to cellular or non-cellular radio, or obtains information supporting selection of a connection to cellular or non-cellular radio from the connection manager and performs a final decision on the connection to cellular or non-cellular radio based on results of the evaluation and the information from the connection manager for selecting the connection to cellular or non-cellular radio.

Abstract: A method for frequency synchronization of a multiport device may include recovering a clock frequency of a master port of a first device that is linked to the multiport device at a slave port of the multiport device. A clock frequency of the slave port may be locked to the recovered-clock frequency of the master port of the first device. Frequency data may be stored in a first frequency register associated with the slave port. The stored frequency data may include a difference between the recovered-clock frequency of the master port of the first device and a local-clock frequency of the multiport device. A clock frequency of one or more master ports of the multiport device may be synchronized with the locked clock frequency of the slave port by coupling the first frequency register to frequency registers associated with one or more master ports.

Abstract: A switch arrangement comprises a first and second single pole switch. The pole of the first switch can selectively connect to a first and second path. The pole of the second switch can selectively connect to the first and second path. The first switch is configurable for a first mode of operation to connect a RF signal received at the pole to the first path to form a RF transmitter chain. The second switch is configurable for the first mode to connect the pole to the first path to form a RF receiver chain for receiving a RF signal. The first switch is configurable for a second mode to connect a RF signal received at the pole to the second path to form a second RF transmitter chain.

Abstract: Embodiments described herein include an integrated circuit (IC) device. For example, the IC device can include a substrate configured to be coupled to a printed circuit board (PCB), an IC die attached to the substrate, and a waveguide launcher formed on the substrate. The waveguide launcher is electrically coupled to the IC die through the substrate.

Abstract: Certain aspects of a method and system for a fast cell search using a primary synchronization channel (PSYNC) process in a multimode wideband code division multiple access (WCDMA) terminal are provided. A WCDMA frequency search or a global system for mobile communications (GSM) frequency search is performed based on a current radio access technology (RAT), received signal strength indication (RSSI) scan measurements, and PSYNC detection operations. The RSSI scan measurements may be averaged by making multiple measurements during a measurement period. At least part of the PSYNC detection operations may be performed during a remaining portion of the measurement period. WCDMA carrier frequencies may be marked in accordance with the results of the PSYNC detection operations. For GSM, some of the frequencies may be removed from the search based on the PSYNC marking while the remaining search frequencies may be ranked based on results from the RSSI scan measurements.

Abstract: A method and apparatus for distributed coordinated scheduling (virtual joint scheduling) is provided. A primary entity is selected and it performs joint scheduling decisions according to information received from one or more coordinating secondary entities. Information received from user equipments served by the primary entity may be taken into account. The primary entity then forwards information of its joint scheduling decisions or some outcome quantity to the one or more secondary entities, each of which may perform their own localized scheduling decisions based on the information provided by the primary entity.

Abstract: In embodiments described herein, an integrated circuit (IC) package is provided. The IC package can include a substrate having opposing first and second surfaces, an IC die coupled to the first surface of the substrate, a first plurality of conductive elements coupled to conductive regions on the first surface of the substrate, an interposer having opposing first and second surfaces, and a second plurality of conductive elements coupled to conductive regions on the first surface of the interposer. The second surface of the substrate is configured be coupled to at least one device. Each of the first plurality of conductive elements is electrically coupled to a respective one of the second plurality of conductive elements. The interposer is configured to be attached to a printed circuit board (PCB).

Abstract: Disclosed are various embodiments for communicating information between various electronic components. A local device may comprise a transmitter to convert communication signals into modulated signals. Modulated signals are injected into a shared power supply line. The remote device may comprise a receiver for identifying the injected signal, demodulating the injected signal, and processing the demodulated signal.

Abstract: Systems and methods for securing a credential generated by or stored in an authentication token during an attempt to access a service, application, or resource are provided. A secure processor receives a credential from an authentication token and securely stores the credential. The secure processor then verifies the identity of the individual attempting to use the authentication token and cryptographically verifies the identity of the server being accessed. The credential is only released for transmission to the server if both the identity of the individual and the identity of the server are successfully verified. Alternatively, a secure connection is established between the secure processor and the server being accessed and a secure connection is established between the secure processor and a computing device. The establishment of the secure connections verifies the identity of the server. After the secure connections are established, the identity of the user is verified.

Abstract: Network devices perform multiple stage path resolution. The path resolution may be ECMP resolution. Any particular stage of the multiple stage path resolution may be skipped under certain conditions. Further, the network device facilitate redistribution of traffic when a next hop goes down in a fast, efficient manner, and without reassigning traffic that was going to other unaffected next hops, using multiple stage ECMP resolution.

Abstract: A method, apparatus and computer program for providing a frame based access (FBA). An example method for use in an access point or station may comprise causing capture of a header, for example PLCP or PHY header from an attempted packet transfer and causing transmission of a negative acknowledgement (NACK) frame in response to a transmitter comprising the decoded address in the header, the NACK configured to indicate a failure to receive or decode data from the attempted packet transfer.

Abstract: Apparatus and methods for indicating the identity of a device for receiving and retransmitting programming information. The device, which may be a set-top box or suitable communication network receiver, may be configured to receive a broadcast signal from an antenna, which may be a satellite, a cable, an electronic communication network or any other suitable source. The programming information may be any type of audio or video data, or any other suitable type of data. The broadcast signal may have multiple channels that include the programming information. Each of the channels may include a distinct watermark. The device may splice between the channels to generate a signature that the device may embed in an output data stream that may be used to display or perform the programming information.