Abstract: Methods and apparatus are provided for performing authentication and decryption operations. A record including multiple encrypted blocks is received. An encrypted block in the record is extracted and decrypted first in order to obtain context information for performing authentication operations. Each remaining block is then decrypted and authenticated by using the available context information. Authentication operations can be performed without having to wait for the decryption of all of the blocks in the record.

Abstract: A method of constructing a lookup table for network switch includes the steps of snooping a communication channel in the network switch for lookup table information. Upon detection of lookup table information on the communication channel, the lookup table information transmitting the lookup table information to a remote system memory. This constructs a lookup table in the remote system memory.

Abstract: A radio frequency receiver for discriminating a modulation type to decode a signal field of an encoded signal in a wireless communication system. The radio frequency (RF) receiver receives an encoded signal having a preamble training sequence associated with a frame, the preamble training sequence including the signal field. The radio frequency receive generates at least a first log-likelihood ratio (LLR) stream and a second LLR stream for each of a plurality of sub-symbols for a predetermined portion of the received encoded signal based upon an m-bit wide modulation reference, wherein m represents the bit width of the modulation reference. The first LLR stream and the second LLR stream each include a plurality of LLR values. The plurality of LLR values of the first LLR stream are summed to produce a first cumulative LLR, and the plurality of LLR values of the second LLR stream are summed to produce a second cumulative LLR.

Abstract: Provided is a system and method for communicating audio. A method includes transmitting audio information segments on a first signal line, each segment including a format portion representative of audio format modes, and a data portion having audio data corresponding to one or more of the format modes. The method also includes transmitting a number of synchronization markers on a second signal line. Each marker is representative of a timing of one of the audio information segments.

Abstract: A method of transmitting data in a cable modem system includes the steps of encoding the data using forward error correction. The data is then encoded with Turbo encoding. The data is then sent to a modulation scheme. The data is then transmitted over a cable channel. The data is then demodulated. The data is then decoded using a Turbo decoder. An inverse of the forward error correction is then applied to the data.

Abstract: An antenna system includes an antenna, a transmission line, an inductor module, a tunable capacitor module, and control logic. The transmission line is coupled to the antenna and to the inductor module. The tunable capacitor module is coupled to the transmission line in accordance with a capacitance control signal to provide a desired capacitance such that inductance of the inductor module and the desired capacitance tunes the antenna system. The control logic is coupled to generate the capacitance control signal based on the operational parameters.

Abstract: A network device for managing data flow can have a data port configured to receive data, a plurality of pointers for pointing to the data received, and a queue for queuing the plurality of pointers. The queue can be configured to have at least one dynamic threshold therein. Furthermore, the network device can have a control module configured to adjust the at least one dynamic threshold with respect to the data flow.

Abstract: A technique for determining a symbol erasure threshold for a received communication signal containing symbol information begins by performing a first threshold calculation to produce an initial symbol erasure threshold, then performing a first margin calculation to produce an initial symbol erasure margin and then modifying the initial symbol erasure threshold using the initial symbol erasure margin to produce a modified symbol erasure threshold. By then periodically modifying the modified symbol erasure threshold adaptively via updating the symbol erasure threshold and/or symbol erasure margin based on various error quantities, the technique can compensate for time-variant considerations, such as drifting noise levels.

Abstract: The present invention relates to a device for an interrupt verification support mechanism and the method for operating said device comprising a processor and an input for external interrupt requests or interrupt pseudo-instructions communicatively coupled to the processor. The method comprises the steps of processing at least one actual instruction in the processor in an instruction pipeline, and if an external interrupt request is received by the processor, the actual instruction is replaced with the pseudo-instruction. Pursuant to the method, instructions are concurrently processed in the processor in an instruction pipeline with several stages. In the instruction pipeline, instructions are processed by an instruction fetch stage, an instruction decode stage, an instruction issue stage, an execute stage and a result write-back stage. Thereby, interrupt requests are only processed at the fetch stage of the instruction pipeline.

Abstract: Certain embodiments of the invention may be found in a method and system for handling data in port bypass controllers for storage systems and may comprise receiving a data stream from a receive port bypass controller's port and buffering at least a portion of the received data stream in at least one EFIFO buffer integrated within the port bypass controller. A data rate or frequency of the received data stream may be changed by inserting at least one extended fill word in the buffered portion of the received data stream or by deleting at least one fill word from the received data stream buffered in the EFIFO buffer. The extended fill word may comprise a loop initialization primitive (LIP), a loop port bypass (LPB), a loop port enable (LPE), a not operation state (NOS), an offline state (OLS), a link reset response (LRR) and/or a link reset (LR).

Abstract: A frequency synthesizer for use in a transmitter operates to receive outbound transmit data and to modulate the outbound transmit data to produce a modulated RF signal. The modulated RF signal can then be amplified to produce an outbound RF signal.

Abstract: In the current invention, a method and apparatus for efficiently deleting large files is described. This is done by having a special inode for pointing to data blocks to be freed, and subsequently freeing the data blocks from the special inode in a controlled manner.

Abstract: The present invention relates to battery chargers. A first controller can be configured to set, when a first power supply is coupled to a first port, a current produced by a variable current source at a safe rate to charge a battery. An ammeter can be configured to measure, when the battery is coupled to a second port, the current flowing into the battery. The first controller can be configured to increase, after a passing of a quantifiable amount of time, the current produced by the variable current source by a quantifiable amount of current. The first controller can be configured to continue iteratively to increase, after the passing of the quantifiable amount of time, the current produced by the variable current source by the quantifiable amount of current until the safe rate is near or at a highest safe rate to charge the battery.

Abstract: According to one general aspect, an apparatus may include a clock channel, a shielding tunnel, and clock repeaters. In various embodiments, the clock channel may be configured to carry the clock signal, and may include a portion of a metal layer of an integrated circuit. In some embodiments, the shielding tunnel may be configured to shield, in at least four directions, the clock channel from other signals, and may include portions of a at least three metal layers of the integrated circuit. The shielding tunnel may be connected to the positive and negative supplies in order to provide the required power for the clock repeaters.

Abstract: A system and method for providing connectivity between mobile devices and access points of a network without redundant solicitation of communication by the mobile device at each access point is described. The method involves receiving a data packet at a first access point in a control group; transmitting the data packet from the first access point to the mobile device; determining if the mobile device acknowledges receipt of the data packet; responsive to determining that the mobile device failed to acknowledge receipt of the data packet, forwarding the data packet to a second access point; and transmitting the data packet from the second access point to the mobile device.

Abstract: A method for in-place, lightweight Ack packet promotion is provided. The method includes receiving a new Ack packet via a network; searching through a transmit queue for an old Ack packet that corresponds to the new Ack packet; and replacing the data in a number field, a checksum field, a window size field, and a timestamp options field of the old Ack packet with data in a number field, a checksum field, a window size field, and a timestamp options field of the new Ack packet.

Abstract: A packaged integrated circuit includes an integrated circuit having a Radio Frequency (RF) passive element formed therein and a wafer level chip scale flip chip package that contains the integrated circuit. The wafer level chip scale flip chip package includes at least one dielectric layer isolating a top metal layer of the integrated circuit and a package signal connection upon the at least one dielectric layer, wherein the package signal connection partially overlays the RF passive element with respect to a surface of the integrated circuit. The RF passive element may be an inductor, a transformer, a capacitor, a transistor, or another passive element. The package signal connection may be a conductive ball, a conductive bump, a conductive pad, or a conductive spring, for example. A conductive structure may reside upon the at least one dielectric layer to provide shielding to the RF passive element and may include a plurality of conductive elements or a mesh.

Abstract: A physical layer device (PLD), comprising: a first serializer-deserializer (SERDES) device having a first parallel port; a second SERDES device having a second parallel port; a third SERDES device having a third parallel port; and a path selector being selectively configurable to provide either (i) a first signal path between the first and second parallel ports, or (ii) a second signal path between the first and third parallel ports.

Abstract: A system and method for measuring a cable resistance in a power over Ethernet (PoE) application. A short circuit module in a powered device is designed to produce a short circuit effect upon receipt of a cable resistance detection voltage. The cable resistance detection voltage can be designed to be greater than a voltage for detection or classification and less than a voltage for powering of the powered device. The measurement of the current at a time when a short circuit effect is produced at the powered device enables a calculation of the actual resistance of the cable on a given PoE port.

Abstract: A packet-based, hierarchical communication system, arranged in a spanning tree configuration, is described in which wired and wireless communication networks exhibiting substantially different characteristics are employed in an overall scheme to link portable or mobile computing devices. The network accommodates real time voice transmission both through dedicated, scheduled bandwidth and through a packet-based routing within the confines and constraints of a data network. Conversion and call processing circuitry is also disclosed which enables access devices and personal computers to adapt voice information between analog voice stream and digital voice packet formats as proves necessary. Routing pathways include wireless spanning tree networks, wide area networks, telephone switching networks, internet, etc., in a manner virtually transparent to the user.