Abstract: A system, method, and apparatus for reducing the video decoder processing requirements for rewinding a HITS stream are presented herein. During rewind of a HITS stream, the video decoder builds a clean reference picture. The clean reference picture is built by decoding each of the P-pictures in the EP-EP segment. However, because the P-pictures are not displayed, the decoder does not decode the portion of the P-picture below the last intracoded slice. The decoder can build the clean reference picture without decoding the portions of the P-pictures below the last intracoded slice because the subsequent pictures do not use the said portions for prediction.

Abstract: An apparatus method to provide a frequency synthesizer using a phase locked loop in a communication device to provide a particular frequency allocation to generate an output from the PLL. The synthesizer includes a phase locked loop (PLL) circuit that has a feedback loop. The feedback loop has a feedback divider circuit that provides an N integer division of an output signal from the PLL in the feedback loop to close loop with the reference signal at a front end of the PLL. A value for feedback factor N to be used in the N integer division is based on a particular channel frequency selected and in which the feedback factor N is selected to provide a highest reference frequency available from the plurality of reference frequencies to generate the reference signal.

Abstract: Determining whether a first wireless terminal may transmit on an uplink to a servicing base station in a cellular wireless communication system includes first receiving a plurality of a Radio Frequency (RF) bursts at a wireless terminal from a servicing base station. These RF bursts carry a data block containing both Uplink Status Flag (USF) bits and Data bits. Data bits may or may not be intended for the receiving wireless terminal. The RF bursts are processed to produce the data block in an encoded format. This data block is then partially decoded to extract the USF bits when the data bits are not intended for the receiving wireless terminal. These USF bits determine when the receiving wireless terminal can transmit or uplink to the servicing base station. The partial decoding may be halted once the USF bits have been extracted from the received data block to reduce power consumption and processing requirements.

Abstract: A method for data verification is provided. An input block of data is received together with a modulo-based input error detection code associated with the input block, the input block comprising a plurality of sub-blocks. A subset of the sub-blocks is selected to be included in an output block. An error correction term is determined based on the selected subset. The selected subset of the sub-blocks is concatenated together with the input error detection code and the error correction term to generate an output block for conveyance to a destination processor.

Abstract: A radio transceiver includes circuitry that enables received RF signals to be down-converted to baseband frequencies and baseband signals to be up-converted to RF signals prior to transmission without requiring conversion to an intermediate frequency. The circuitry includes a temperature sensing module that produce accurate voltage level readings may be mapped into corresponding temperature values. A processor, among other actions, adjusts gain level settings based upon detected temperature values. One aspect of the present invention further includes repetitively inverting voltage signals across a pair of semiconductor devices beings used as temperature sensors to remove a common mode signal to produce an actual temperature-voltage curve. In one embodiment of the invention, the circuitry further includes a pair of amplifiers to facilitate setting a slope of the voltage-temperature curve.

Abstract: A processor includes an instruction memory, arithmetic logic unit, finite field arithmetic unit, at least one digital storage device, and an instruction decoder. The instruction memory temporarily stores an instruction that includes at least one of: an operational code, destination information, and source information. The instruction decoder is operably coupled to interpret the instruction to identify the arithmetic logic unit and/or the finite field arithmetic unit to perform the operational code of the corresponding instruction. The instruction decoder then identifies at least one destination location within the digital storage device based on the destination information contained within the corresponding instruction. The instruction decoder then identifies at least one source location within the digital storage device based on the source information of the corresponding instruction.

Abstract: The present invention provides a modular headset operable to support both voice communications and voice activated commands. This may involve the use of multiple voice CODECs to process voice communications and voice activated commands. The modular headset includes both a microphone and wireless earpiece. The earpiece may further include an interface, a processing circuit, a speaker, a user interface, a pairing circuit, and a registration circuit. The interface allows the earpiece to communicate with the base unit that couples the modular headset to a servicing network. This coupling to the servicing network and base unit only occurs when the headset is successfully registered to the base unit. The pairing circuit and registration circuit allow the exchange of pairing or registration information between various components. The pairing circuit allows the wireless earpiece and microphone to exchange pairing information which is then compared to determine whether or not a successful pairing can be achieved.

Abstract: A method for making a memory cell for reducing the cost and complexity of modifying a revision identifier (ID) or default register values associated with an integrated circuit (IC) chip, and a method for manufacturing the same. The cell, which may be termed a “Meta-Memory Cell” (MMCEL), is implemented on metal layers only and utilizes a dual parallel metal ladder structure which traverses and covers each metal and via layer from the bottom to the top of the metal layer structure of the chip. One of the metal ladders is connected to a power supply at the bottom metal layer, corresponding to a logic 1, and another metal ladder is connected to ground at the bottom metal layer, corresponding to a logic 0. The output of the MMCEL can thus be inverted at any metal or via layer and can be inverted as often as required. Significant cost savings are achieved because a revision ID or default register bits may be modified by altering only those metal layers where design changes are necessary.

Abstract: A system for implementing Incremental Redundancy (IR) operations in a wireless receiver includes a baseband processor, an equalizer, a system processor, a plurality of IR processing module registers, and an IR processing module. The baseband processor receives an analog signal and produces samples. The equalizer is operable to receive the samples, to equalize the samples, and to produce soft decision bits corresponding to the data block. The system processor receives the soft decision bits of the data block, configures the plurality of IR processing module registers, and initiates operations of the IR processing module. The IR processing module accesses the plurality of IR processing module registers, receives the soft decision bits of the data block, and performs IR operations on the soft decision bits of the data block in an attempt to correctly decode the data block.

Abstract: Mobile wireless device(s) roam within and between premises and a vehicle or other mobile platform and interface to wireless local area networks within the premises or vehicle. When using the intra-vehicular network, a communication relay within the vehicle routes communications from the wireless device to a wide area wireless network such as cellular network or satellite network. This allows the power consumption of the mobile wireless device to be greatly reduced as the mobile device need only communicate with the local intra-vehicular WLAN. The vehicle acts as the power supply for the relay. When the coverage area of the intra-vehicular WLAN overlaps that of another WLAN, seamless handoff allows continuous data or voice connectivity between the overlapping wireless networks.

Abstract: A pulse on edge circuit includes a first pull up transistor having its gate terminal coupled to a delayed control signal and a second pull up transistor having its gate terminal coupled to an inverted delayed control signal. A first and second pull down transistors are coupled in series between the first pull up transistor and a low voltage bias, wherein the gates of the first and second pull down transistors are coupled to the delayed control signal and inverted control signal, respectively. A third and fourth pull down transistors are coupled in series between the second pull up transistor and the low voltage bias. The gates of the third and fourth pull down transistors are coupled to a control signal and the inverted delayed control signal, respectively.

Abstract: Wireless terminal filtering attachment decisions based upon type(s) of available network(s). A novel approach is presented by which one or more filter parameters is applied when making decisions of which WAP (Wireless Access Point) (e.g., including wireless local area network access points, WiMAX access points, or cellular access points) is appropriate or valid with which to associate and through which to connect to a communication network (i.e., the Internet). Certain filter parameter sets can be implemented, and changed over time (e.g., via user selection or adaptively), so that different filter parameters apply in different situations. Generally, a plurality of detected WAPs can be partitioned into available WAPs and non-available WAPs. This division can be along (1) private vs. (2) non-private, (1) private (authorization is granted) and non-private vs. (2) private (no authorization is granted), or a variety of other lines.

Abstract: A radio transmitter integrated circuit includes a photodiode array circuit, a digital conversion module, a transmit baseband processing module, an analog conversion module, an up-conversion module, and a power amplifier circuit. The photodiode array circuit is coupled to convert received light into electrical image signals. The digital conversion module is coupled to convert the electrical image signals into digital image signals. The transmit baseband processing module is coupled to convert the digital image signals into digital transmit baseband or low IF signals. The analog conversion module, the up-conversion module, and the power amplifier circuit are coupled to convert the digital transmit baseband or low IF signals into transmit radio frequency (RF) signals.

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: Wireless terminal making attachment decisions based upon mobility. A novel approach is presented by which a communication device, that is operable to associate with and connect with one or more types of WAPs (Wireless Access Points) (e.g., including wireless local area network access points, a WiMAX access points, or cellular access points), is designed to connect appropriately with a WAP based on the mobility of the communication device. For example, if a communication device is employed by a user in a fast moving vehicle, it would be more desirable to associate with a WAP that is operable to provide for a broader service range than a WAP whose service area is very localized and of which such a fast-moving user will soon be out of range. Alternatively, if a user is walking or relatively stationary, then associating with a WAP having a relatively much smaller service area could be sufficient.

Abstract: Spatial mapping of wireless access point service area. A means is presented by which a WACN's (Wireless Access Control Node's) service area is spatially mapped providing information corresponding to coverage region(s) within the WACN's service area. This spatial mapping may be generated and stored within either communication device at either end of a communication link (e.g., in a WACN or in a communication device operable to connect to the WACN). From the WACN's perspective, the spatial map can include its one or more coverage regions within its service area. From a communication device's perspective (e.g., a communication device that is capable to connect to a WACN), the spatial map can include multiple service areas provided by multiple WACNs and the various coverage regions therein. The partitioning of a WACN's service area into coverage areas can be performed along various lines (e.g., signal strength, history of connectivity, operational parameters employed, etc.).

Abstract: A radio receiver front-end includes first and second RF receiver sections and an RF combining module. The first RF receiver section is coupled to receive an inbound RF signal and provide to a first representation of the inbound RF signal, wherein the inbound RF signal includes a desired signal component and an undesired signal component. The second RF receiver section is coupled to receive the inbound RF signal and to provide a second representation of the inbound RF signal. The RF combining module is coupled to combine the first and second representations of the inbound RF signal to produce a desired RF signal, wherein the desired RF signal includes the desired signal component and an attenuated representation of the undesired signal component.

Abstract: Altering communication interface parameters based upon mobility. A novel approach is presented in which at least one operational parameter is changed as a function of the mobility of a wireless terminal. The changing of the operational parameter (which can be performed by either the wireless terminal, a WAP, or cooperatively by both) can include changing an entire protocol or only one operational parameter within the protocol. The mobility measure can be any one or combination of velocity (rate of change of position), acceleration, position within the network, or other measure. The mobility can be an average mobility over a period of time, or it can be an instantaneous mobility. The operational parameter can be changed by either communication device at each end of a communication link or in part, by both (e.g., either by a WAP (Wireless Access Point) or a communication device connected thereto, or by cooperation there between).

Abstract: A wireless network in a communication infrastructure has a packet switched backbone network and includes a plurality of access points and services a plurality of client devices. The plurality of access points communicatively coupled to the packet switched backbone network and each have access point processing circuitry and access point wireless transceiver circuitry. The plurality of client devices each have client processing circuitry and client wireless transceiver circuitry. A client device of the plurality of client devices, using respective client processing circuitry and respective client wireless transceiver circuitry, determines interference parameters regarding wirelessly communicating within the wireless network. The client device then transmits the interference parameters to an access point of the plurality of access points.

Abstract: A method for avoiding signal interference between a first RF device and a second RF device is provided. The first and second RF devices are co-located and the first RF device is configured to operate within a semi-stationary range of a frequency band. The second RF device is configured to operate by changing channels within the frequency band. The method initiates with a communication interface being provided between the first RF device and the second RF device. Then, the second RF device receives the semi-stationary range and a mode for the first RF device through the communication interface. Next, the second RF device is adapted to avoid the semi-stationary range of the frequency band of the first RF device when the mode of the first RF device is in an active mode. An apparatus where two RF devices are co-located without causing interference for each other is also provided.