Abstract: A direct sampling tuner includes a low noise amplifier and an optional dynamically configurable band pass filter coupled to the low noise amplifier. The optional filter is configured to pass a selected band of channels. The tuner further includes a relatively high accuracy, multi-bit analog-to-digital converter (“ADC”) coupled to the LNA or to the optional dynamically configurable band pass filter. The ADC operates at greater than about twice a frequency of a sampled signal. The ADC directly samples the spectrum of the selected channels at the Nyquist rate, thus avoiding image problems presented by conventional tuners.

Abstract: A low profile Planar Inverted-F Antenna (PIFA) comprises a radiating strip, an inductive tuning portion, a vertical feed portion, and a retracted ground plane. The radiating strip is approximately parallel to the ground plane and is suspended above the ground plane by the feed element at a certain distance. Further, the radiating strip, in part or entirely, overhangs the ground plane. In this way, the radiating strip may be suspended very close to the ground plane, but yet exhibits a large bandwidth.

Abstract: A baseband processing module for use within a Radio Frequency (RF) transceiver includes a downlink/uplink interface, TX processing components, a processor, memory, RX processing components, and a turbo decoding module. The RX processing components receive a baseband RX signal from the RF front end, produce a set of IR samples from the baseband RX signal, and transfer the set of IR samples to the memory. The turbo decoding module receives a set of IR samples from the memory, forms a turbo code word from the set of IR samples, turbo decodes the turbo code word to produce inbound data, and outputs the inbound data to the downlink/uplink interface. The turbo decoding module performs metric normalization based upon a chosen metric, performs de-rate matching on the set of IR samples, performs error detection operations, and extracts information from a MAC packet that it produces.

Abstract: A system for reducing the bandwidth required to transmit a data packet via a wireless network is provided. In an embodiment, the system is configured for generating a packet to be transmitted via the wireless network. Once a packet is generated, a packet type of the packet to be transmitted via the wireless network is determined. Based on the packet type, a suppression rule is selectively applied to the packet to generate a suppressed packet. Applying the suppression rule includes suppressing at least a portion of the header of the packet and adding a descriptor associated with the header suppression rule to the packet. The system is configured to conclude with the transmittal of the suppressed packet via the wireless network.

Abstract: A system, method, and computer program product for synchronizing time between a centralized controller device and at least one subscriber device on a fiber access network. The control layer of a network device is expanded, and additional messaging control is added via the transmission of data frames. The expansion prevents reliance on a physical layer signal. The time synchronization also allows a time stamp to be incorporated into a message. Thus, bandwidth is not wasted by simply transmitting a time stamp by itself. In an embodiment, the centralized controller device measures the time difference between the time at which a particular ranging request is transmitted and the time at which the particular ranging request is received. The time difference represents the time adjustment value for the particular subscriber device and allows the device to synchronize its time with that of the centralized controller device.

Abstract: A filter includes a first port, a second port, a first fractal curve based filter element coupled to the first port, and a second fractal curve based filter element coupled to the second port. The first fractal curve based filter element has first electromagnetic properties and the second fractal curve based filter element has second electromagnetic properties. The first fractal curve based filter element is electromagnetically coupled to the second fractal curve based filter element to filter radio frequency (RF) signals.

Abstract: A method and apparatus for generating a performance indicator in a high-speed communication system. A plurality of disparate communication status signals with differing formats from a transceiver are combined in a logic module to create a single link quality indicator signal. The link quality indicator signal is used to encode different operational states of the transceiver from fully operational, to marginally operational, to failed. The link quality indicator signal is advantageously employed to drive a LED creating a visual performance indicator.

Abstract: Certain embodiments for an analog zero-IF interface for GSM receivers, where a receiver may receive RF signals and downconvert the RF signal to a VLIF signal in the analog domain. The VLIF signal may be further downconverted to a baseband signal in the analog domain. The baseband signal may be an analog signal. Aspects of the invention may comprise amplifying the received RF signal, mixing the amplified RF signal down to a VLIF signal, filtering the VLIF signal, amplifying the VLIF signal, mixing the filtered VLIF signal to a baseband signal, and filtering the baseband signal. The local oscillator signal to the mixer that may downconvert the RF signal to a VLIF signal may be an output of a programmable local oscillator, and may be one of a plurality of frequencies. The mixer that generates the baseband signal may be a harmonic-reject mixer.

Abstract: A system and method for operating system power management in a computing device for power over Ethernet (PoE). Computing devices such as portable computers or embedded devices having an operating system (OS) can leverage power management features in an OS. Power management state information such as user parameters, computing device parameters, application parameters, IT parameters, network parameters, etc. can be used to generate power requests that are acted upon by power sourcing equipment.

Abstract: An integrated circuit for use in an RFID tag includes an integrated circuit die having a circuit, a radio frequency identification (RFID) interface for providing communication between the circuit and a remote RFID reader via RF signaling between the RFID interface and the remote RFID reader, and an antenna section for facilitating the RF signaling between the RFID and the remote RFID reader. A substrate is coupled to support the first integrated circuit die.

Abstract: Aspects of a method and system for variable resolution data conversion in a receiver are provided. In this regard, an analog received signal may be converted to a corresponding digital signal, wherein a resolution of the corresponding digital signal may be varied (e.g., by configuring one or more switching elements) for the conversion based on one or more determined characteristics of said received signal. The resolution of the conversion may be determined based on characteristics of in-band and/or out-of-band signals. The resolution may be increased when received signal strength is below a threshold and may be decreased when received signal strength is above a threshold. Similarly, the resolution may be increased when interference is above a threshold and may be decreased when interference is below a threshold. The resolution may be increased when error rates are above a threshold and decreased when error rates are below a threshold.

Abstract: Certain aspects of a method and system for transparent TCP offload with a user space library are disclosed. Aspects of a method may include collecting TCP segments in a network interface card (NIC) without transferring state information to a host system. When an event occurs that terminates the collection of TCP segments, a single aggregated TCP segment based on the collected TCP segments may be generated. The aggregated TCP segment may be posted directly to a user space library, bypassing kernel processing of the aggregated TCP segment.

Abstract: Methods and systems that support, for example, canceling or trimming reservations of a shared communication medium are described. In one embodiment, a method that adapts a network time reservation in a communication network may include, for example, one or more of the following: transmitting a preamble field; transmitting a legacy signal field; transmitting at least one paired field, each paired field comprising a signal field and a protocol data unit; and generating an interframe gap.

Abstract: According to an example embodiment, a technique may be provided for managing a label data base of which each entry comprises a data field for insertion into a respective packet in a multicast transmission and a validity field. The technique may include, for example, (a) establishing a fixed size for a cluster of labels, (b) associating with each cluster a pointer to another cluster, (c) establishing a sentinel cluster of which all entries are indicated to be invalid and of which the cluster pointer points to this sentinel cluster, (d) establishing a root table which defines the number of replications of the packet in a multicast group and identifies a first label cluster associated with the multicast group and (e) establishing a chain of clusters of which each cluster which is full of valid entries points to the next cluster in the chain and the last cluster which contains valid entries points to the sentinel cluster.

Abstract: A PC-slave device may securely load and decrypt an execution code and/or data, which may be stored, encrypted, in a PC hard-drive. The PC-slave device may utilize a dedicated memory, which may be partitioned into an accessible region and a restricted region that may only be accessible by the PC-slave device. The encrypted execution code and/or may be loaded into the accessible region of the dedicated memory; the PC-slave device may decrypt the execution code and/or data, internally, and store the decrypted execution code and/or data into the restricted region of the dedicated memory. The decrypted execution code and/or data may be validated, and may be utilized from the restricted region. The partitioning of the dedicated memory, into accessible and restricted regions, may be performed dynamically during secure code loading. The PC-slave device may comprise a dedicated secure processor that may perform and/or manage secure code loading.

Abstract: Herein described is a method and system for providing shared access to data residing within non-data pool related file systems. Aspects of the invention incorporate the use of one or more share access mechanisms by which access to the data occurs. The one or more share access mechanisms may be enabled or disabled by way of one or more selections that are made using a user interface. In a representative embodiment, the user interface may comprise a web browser. The method may involve assigning one or more values to one or more variables such that one or more name-value pairs are generated. The one or more name-value pairs are stored in a non-volatile memory. Execution of a software program may enable the one or more share access mechanisms when one or more assigned values are equal to one or more enabling values.

Abstract: Systems and methods that support splitting a compute resource from its input/output and sharing among one or more users are provided. In one embodiment, a system that supports one or more user devices may include, for example, a compute engine, a first user device and a second user device. The compute engine may be adapted to provide virtualization. The virtualization may provide, for example, a first instance of a particular operating system and a second instance of the particular operating system. The first user device may be coupled to the compute engine and may access the first instance of the particular operating system. The second user device may be coupled to the compute engine and may access the second instance of the particular operating system. In one example, the user devices are input/output devices that do not run applications or operating systems.

Abstract: According to one exemplary embodiment, a method for producing an up-converted and amplified transmission signal comprises performing a logarithmic transformation of an input transmission signal to form a logarithmically transformed transmission signal, adding the logarithmically transformed transmission signal to a logarithmic local oscillator signal to form a sum signal, and performing an antilogarithmic transformation of the sum signal to produce the up-converted and amplified transmission signal. In one embodiment, a log-antilog circuit for producing an up-converted and an amplified transmission signal comprises a transmission log block configured to receive an input transmission signal and to provide a logarithmically transformed transmission signal as a transmission log block output, and an antilog block coupled to the transmission log block. The antilog block is configured to receive a sum signal of the transmission log block output and a logarithmic local oscillator 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: A system and method for enabling power over Ethernet (PoE) for legacy devices. Legacy devices often represent a large installed base of devices. This installed base of devices (e.g., mobile computing devices) may have little or no PoE functionality. It is a feature of the present invention that an external device (e.g., dongle) can be used to retrofit such an installed base of devices for use with state of the art PoE functionality.