Abstract: Provided is a method and system for transmitting MPEG frames between a DOCSIS based satellite modem termination system (SMTS) and a corresponding satellite modem (SM) system. The method includes identifying at least one data stream requiring transmission between the SMTS and the SM, the data stream including one or more MPEG frames. Next, the MPEG frames are organized within SMTS data queues based upon predetermined parameters and then transmitted based upon their organization within the data queues.

Abstract: A method for multiple protocol wireless communications begins by determining protocols of wireless communication devices within a proximal region. The method then continues by determining whether the protocols of the wireless communication devices within the proximal region are of a like protocol. The method continues by, when the protocols of the wireless communication devices within the proximal region are not of a like protocol, selecting a protocol of the protocols of the wireless communication devices within the proximal region based on a protocol ordering to produce a selected protocol. The method continues by utilizing the selected protocol by the wireless communication devices within the proximal region to set up a wireless communication within the proximal region.

Abstract: A data processing apparatus includes a volatile memory, a random number generator adapted for generating random numbers from which one or more keys are generated, and a memory encryption unit (MEU). The MEU is configured to receive an N-bit block of data and to divide the N-bit block of data into two more sub-blocks of data, where each sub-block contains fewer than N-bits. The MEU is further configured to encrypt each sub-block of data using the one more keys, to combine the encrypted sub-blocks into an N-bit block of encrypted data, and to write the encrypted N-bit block of data to the volatile memory.

Abstract: A network device connected to a network includes a physical port and multiple logical ports configured to provide guest access or authenticated access to the network via the physical port, to a supplicant device. An authorization engine determines whether the supplicant device is authorized to access the network. An authentication engine determines whether the supplicant device is compatible with an authentication protocol associated with the network based on a receipt or a non-receipt of a response from the supplicant device to one or more authentication requests. A guest table stores the source address of the supplicant device if the supplicant device is authorized to access the network and is incompatible with the authentication protocol, wherein the logical ports are configured to provide the guest access to the supplicant device corresponding to the source address stored in the guest table.

Abstract: An extended antenna module includes an antenna section and an extended wireless interface. The antenna section is operable to receive an inbound radio frequency (RF) signal when an antenna select signal is in a first state and/or transmit an outbound RF signal when the antenna select signal is in the first state. The extended wireless interface is operable to wirelessly receive the outbound RF signal from a unit wireless interface when the antenna select signal is in the first state and wirelessly transmit the inbound RF signal to the unit wireless interface when the antenna select signal is in the first state.

Abstract: A system and method for the secure storage of executable code and the secure movement of such code from memory to a processor. The method includes the storage of an encrypted version of the code. The code is then decrypted and decompressed as necessary, before re-encryption in storage. The re-encrypted executable code is then written to external memory. As a cache line of executable code is required, a fetch is performed but intercepted. In the interception, the cache line is decrypted. The plain text cache line is then stored in an instruction cache associated with a processor.

Abstract: A radio frequency (RF) transmitter front-end includes a digital to analog conversion module and a power amplifier module. The digital to analog conversion module is coupled to convert amplitude information into analog amplitude adjust signals when a first mode is active and is coupled to convert power level information into analog power level signals when a second mode is active. The power amplifier module is coupled to amplify first phase modulated RF signals in accordance with the analog amplitude adjust signals to produce first outbound RF signals when the first mode is active and is coupled to amplify second phase modulated RF signals in accordance with the analog power level signals to produce second outbound RF signals when the second mode is active.

Abstract: A system for implementing an orthogonal frequency division multiplexing scheme and providing an improved range extension. The system includes a transmitter for transmitting data to a receiver. The transmitter includes a symbol mapper for generating a symbol for each of a plurality of subcarriers and a spreading module for spreading out the symbol on each of the plurality of subcarriers by using a direct sequence spread spectrum. The symbol on each of the plurality of subcarriers is spread by multiplying the symbol by predefined length sequences. The receiver includes a de-spreader module for de-spreading the symbols on each of the plurality of subcarriers. The de-spreader module includes a simply correlator receiver for obtaining maximum detection. The correlator produces an output sequence of a same length as an input sequence and the de-spreader module uses a point of maximum correlation on the output sequence to obtain a recovered symbol.

Abstract: An LED driver circuit is disclosed that can drive a plurality of LED strings that are arranged in parallel, each LED string having a plurality of component LEDs that are series-connected. The LED strings can be the same type of LEDs in each string, or have different types of LEDs from one string to another. The LED driver includes a voltage control loop that dynamically regulates the output voltage across the parallel arrangement of LED strings. The output voltage is dynamically adjusted to accommodate the LED string with the largest operational voltage drop. This enables LED displays to constructed using different types of LEDs strings, but still supply the LED strings in a power efficient manner. Further, each LED string also includes its own individual current regulation loop so that the current, and therefore brightness, of each LED string can be individually adjusted.

Abstract: A radio frequency identification (RFID) decoding subsystem includes a pre-decode module and a decode module. The pre-decode module is coupled to process down-converted RFID signals into at least one of pre-decoded baseband data and corresponding decoding information. The decode module is coupled to process the pre-decoded baseband data into decoded RFID data, where the processing of the pre-decoded baseband data is based on the corresponding decoding information when the corresponding decoding information is produced by the pre-decoder module.

Abstract: A single chip radio transceiver includes circuitry that enables received wideband RF signals to be down converted to base band frequencies and base band signals to be up converted to wideband RF signals prior to transmission without requiring conversion to an intermediate frequency. The circuitry includes a low noise amplifier, automatic frequency control circuitry for aligning the LO frequency with the frequency of the received RF signals, signal power measuring circuitry for measuring the signal to signal and power ratio and for adjusting frontal and rear amplification stages accordingly, and finally, filtering circuitry to filter high and low frequency interfering signals including DC offset.

Abstract: Methods are disclosed for indirectly monitoring and controlling at least one media peripheral device in a media exchange network by accessing a media management system (MMS) via a first media peripheral (MP) device (e.g., a TV screen) using a user control device (e.g., a remote control). An operation corresponding to a second media peripheral (MP) device (e.g., a digital camera) may be selected via the MMS using the first MP device and the user control device. The operation is then carried out (i.e., performed) by the second MP device. A status of the second MP device may be selected via the MMS using the first MP device and the user control device. The selected status is then displayed on the first MP device.

Abstract: A network device for processing packets. The network device includes a memory management unit for storing packets and performing resource checks on each packet and an egress module for performing packet modification and transmitting the packet to a destination port. The memory management unit includes a timer for indicating that a free space should be created on a bus slot between the memory management unit and the egress module, wherein the free space is used for transmitting CPU instructions from the memory management unit to the egress module.

Abstract: A network switch having at least one port data port interface, a first memory, a second memory, and a memory management unit in connection with the at least one data port interface, the first memory, and the second memory. The memory management unit operates to receive data from the at least one data port interface, determine if the data is to be stored in one of the first memory or the second memory, store the data in one of the first memory or the second memory as a linked list, retrieve the data from one of the first memory or the second memory, and forwards the data for egress.

Abstract: A method and apparatus are disclosed for efficiently de-scrambling and bit-order-reversing one or more bytes of data according to DSL standards on a processor. In a preferred embodiment, this is achieved by providing an instruction for de-scrambling and bit-order-reversing one or more bytes of data according to DSL standards. Accordingly, the invention advantageously provides a processor with the ability to de-scramble and bit-order-reverse data with a single instruction thus allowing for more efficient and faster de-scrambling operations for subsequent processing.

Abstract: A method of installing multiple over-the-air antennas is disclosed. The method includes the steps of mounting a satellite antenna to a installation surface, such that the mounting allows the satellite antenna to be aimed at a satellite, attaching a broadband access antenna to one of the installation surface and a portion of the satellite antenna, such that the attaching allows the broadband access antenna to be aimed at a broadband access source, connecting first wiring from the broadband access antenna to a first downconverter and second wiring from the satellite antenna to a second downconverter, providing outputs of the first and second downconverters to a cable in communication with at least a satellite receiver and positioning, on at least a coarse scale, the satellite antenna and the broadband access antenna such that they are approximately pointed at the satellite and the broadband access source, respectively.

Abstract: A system and method for facilitating the authentication of wireless devices in an environment with multiple wireless networks. A user wishing to join an operating wireless network can bring his wireless device within close physical proximity, for example, less than one meter, of a device in the network that he wishes to join. The user then presses an authenticate button, which causes both devices to enter a low transmission power mode. In such case, the devices are only capable of operation within the close proximity. Being in low power mode will diminish the possibility of eavesdropping on the authentication process. Power down mode also reduces the amount of message traffic in the area and saves scarce power and processing resources at the nodes, which are now out of range. Authentication then takes place in low power mode and once completed, both devices resume normal power levels and continue communicating normally.

Abstract: Optimal synchronization mark/address mark construction. These marks can generally be referred to as sync marks. A novel means is presented by which sync marks can be generated for use within a variety of communication systems including HDD systems. The sync marks generated hereby have a largest possible minimum distance measurement that ensures highly accurate detection of the transition between the data portion and the preamble portion of information that is processed. Various types of distance measurement criteria can be employed, including a Euclidean distance measurement or a Hamming distance measurement, when selecting the sync mark from among a plurality of possible sync marks.

Abstract: A direct conversion satellite tuner is fully integrated on a common substrate. The integrated tuner receives an RF signal having a plurality of channels and down-converts a selected channel directly to baseband for further processing. The integrated tuner includes on-chip local oscillator generation, tunable baseband filters, and DC Offset cancellation. The integrated tuner can be implemented in a completely differential I/Q configuration for improved electrical performance. The entire direct conversion satellite tuner can be fabricated on a single semiconductor substrate using standard CMOS processing, with minimal off-chip components. The tuner configuration described herein is not limited to processing TV signals, and can be utilized to down-convert other RF signals to an IF frequency or baseband.

Abstract: According to an example embodiment, a total offered traffic load for a shared resource within a network switching system may be determined, the total offered traffic load may include, for example, a sum of offered traffic loads from one or more active virtual output queues (VOQs) of the network switching system. A capacity of the shared resource within the network switching system may be determined. A transmission rate from one or more of the active VOQs over the shared resource may be adjusted such that the total traffic load from the active VOQs does not exceed the capacity of the shared resource.