Abstract: An integrated circuit (IC) includes a baseband processing module, a radio frequency (RF) section, and an interface module. The baseband processing module coupled to determine when the IC is in a wireless local area network (WLAN) mode and when in the WLAN mode, the baseband processing module is further coupled to convert an outbound voice signal into an outbound WLAN voice symbol stream; convert an inbound WLAN voice symbol stream into an inbound voice signal; convert outbound data into an outbound WLAN data symbol stream; and convert an inbound WLAN data symbol stream into inbound data. The RF section is coupled to convert an inbound WLAN RF voice signal into the inbound WLAN voice symbol stream; convert the outbound WLAN voice symbol stream into an outbound WLAN RF voice signal; convert an inbound WLAN RF data signal into the inbound WLAN data symbol stream; and convert the outbound WLAN data symbol stream into an outbound WLAN RF data signal.

Abstract: A digital to analog conversion (DAC) module includes a digital to analog converter, a sample and hold circuit, and a switch module. The digital to analog converter is coupled to convert a digital signal into an analog signal. The sample and hold circuit is coupled to sample the analog signal to produce a sampled analog signal. The switch module is coupled to provide the analog signal as an output of the DAC module when the DAC module in a first mode and to output the analog signal to the sample and hold circuit when the DAC module in a second mode, wherein the sampled analog signal provides the output of the DAC module in the second mode.

Abstract: A system and method for using a single antenna for active and passive radio functions. A wireless communication device includes a passive component that can be read using an antenna when the wireless communication device is in a low power sleep mode. When it is determined that a higher capacity is needed, the wireless communication device activates an active component. Activation of the active component includes a switching of a connection of the antenna from the passive component to the active component.

Abstract: A system and method for enabling secure short-range communication. A close proximity transmitter is used that is designed with a relatively poor radiator as compared to a conventional transmitter supporting conventional transmissions such as mobile phone communications, Wi-Fi, or Bluetooth communication. The close-proximity transmitter and the conventional transmitter are selectively activated based on a communication mode.

Abstract: An adjustable antenna interface includes a single-ended to differential conversion circuit, an adjustable impedance matching circuit, an RF differential switch, and an input. The single-ended to differential conversion circuit converts inbound RF signals from single-ended signals to differential signals and converts outbound RF signals from differential signals to single-ended signals. The adjustable impedance matching circuit provides an impedance based on an impedance control signal. The RF differential switch provides the differential outbound RF signals from the IC to the single-ended to differential conversion circuit in accordance with a first antenna control signal and provides the differential inbound RF signals from the single-ended to differential conversion circuit to the IC in accordance with a second antenna control signal. The input receives the first antenna control signal, the second antenna control signal, and the impedance control signal from the IC.

Abstract: A system and method for accelerating the performance of finite impulse response (FIR) filtering operations in a processor system. The system and method accelerates FIR filtering operations by using a holding register to provide additional input samples to an instruction beyond those normally accommodated by source registers, and by using a large number of multipliers that can operate in parallel on the input samples in order to generate output sample of a FIR filter, such as a non-decimating FIR filter.

Abstract: An integrated circuit (IC) includes a baseband processing module, a disk driver interface, an RF section, and an interface module. The disk drive interface is coupled to the baseband processing module and to an off-IC disk drive, wherein the disk driver interface facilitates transfers between the baseband processing module and the off-IC disk drive.

Abstract: A voice data and RF integrated circuit (IC) includes an RF transceiver module that produces received data based on a received RF signal and that produces a transmitted RF signal based on transmit data. A memory module includes a first read only memory (ROM) segment for storing a first plurality of operational instructions, and a first random access memory (RAM) segment for storing a second plurality of operational instructions. A first processing module executes the plurality of operational instructions that include baseband processing to generate input data from the received data, and to produce the transmit data from input data. A first memory interface provides direct downloading of the second plurality of operational instructions from the external memory to the first RAM segment.

Abstract: An integrated circuit (IC) includes a baseband processing module, a GPS receiver, an RF section, and an interface module. The GPS receiver module is coupled to recover a plurality of coarse/acquisition (C/A) signals and a plurality of navigation messages from a plurality of down converted GPS signals. The RF section is coupled to convert an inbound RF voice signal into the inbound voice symbol stream; convert the outbound voice symbol stream into an outbound RF voice signal; convert an inbound RF data signal into the inbound data symbol stream; convert the outbound data symbol stream into an outbound RF data signal; and convert a plurality of GPS RF signals into the plurality of down converted GPS signals.

Abstract: A cellular telephone IC includes a baseband processing module, an RF section, an audio codec, a keypad interface, a memory interface, and a display interface. The baseband processing module and RF section function to convert an outbound voice signal into an outbound RF voice signal, to convert an inbound RF voice signal into an inbound voice signal, to convert outbound data into an outbound RF data signal, and to convert an inbound RF data signal into inbound data. The audio codec section converts inbound analog voice signals into the inbound voice signals and converts the outbound voice signals into outbound analog voice signals. The keypad interface produces the outbound data based on received inputs. The display interface provides the inbound data to an off-chip display.

Abstract: A system and method for discovering a cable type and resistance for Power over Ethernet (PoE) applications. Cabling power loss in PoE applications is related to the resistance of the cable itself. A PHY can be designed to measure electrical characteristics (e.g., insertion loss, cross talk, length, etc.) of the Ethernet cable to enable determination of the cable resistance. The determined resistance can be used in powering decisions and in adjusting power budgets allocated to power source equipment ports.

Abstract: A Voice-Data-RF IC includes voice and data baseband processing modules, voice and data RF sections, and an interface module. The voice baseband processing module and the voice RF section convert an outbound voice signal into an outbound RF voice signal and convert an inbound RF voice signal into an inbound voice signal. The data baseband processing module and the data RF section convert outbound data into an outbound RF data signal and convert an inbound RF data signal into inbound data, wherein the inbound RF data signals have a carrier frequency from a different inbound frequency band than the inbound RF voice signals and the outbound data RF signals have a carrier frequency from a different outbound frequency band than the outbound RF voice signals.

Abstract: A system and method for enabling interrupts for RFID tags. An RFID tag is provided with an output signal that can notify another chip in a system, or another function within the same IC, that a read of the RFID's information has taken place. In one embodiment, the output signal would awaken a microcontroller from a low power sleep mode. The awakened microcontroller can be designed to perform a higher-level function than that supported by the RFID tag.

Abstract: An integrated circuit (IC) includes a baseband processing module and a radio frequency (RF) section. The baseband processing module is coupled to convert outbound data into amplitude modulation information and phase modulation information when the IC is in a cellular data mode and to convert an outbound radio frequency identification (RFID) signal into RFID amplitude modulation information when the IC is in an RFID mode. The RF section is coupled to generate an outbound RF data signal in accordance with the amplitude modulation information and the phase modulation information when the IC is in the cellular data mode and to generate an outbound RF RFID signal in accordance with the RFID amplitude information when the IC is in the RFID mode.

Abstract: An integrated circuit (IC) includes a baseband processing module and a radio frequency (RF) section. The baseband processing module is coupled to convert outbound data or an outbound voice signal into at least one of amplitude modulation information, phase modulation information, and frequency modulation information. The RF section includes an oscillation module, a frequency divider, and power amplifier modules. The oscillation module produces an RF oscillation that it modulates based on the phase or frequency modulation information to produce a modulated RF signal. The frequency divider divides the frequency of the modulated RF signal to produce a frequency divided modulated RF signal. The first power amplifier module amplifies the modulated RF signal in accordance with the amplitude modulation information or a constant to produce a first frequency band outbound RF data or voice signal.

Abstract: An integrated circuit (IC) includes at least one baseband processing module, an RF section, and an interface. The baseband processing module converts outbound voice signal into an outbound voice symbol stream; an inbound voice symbol stream into an inbound voice signal; outbound data into an outbound data symbol stream; an inbound data symbol stream into inbound data; outbound wireless network data into an outbound wireless network data symbol stream; and an inbound wireless network data symbol stream into inbound wireless network data.

Abstract: A real-time/non-real-time/RF IC includes first and second baseband processing modules, an RF section, a wireline interface, and a bus structure. The first baseband processing module converts real-time outbound data into real-time outbound symbols and converts real-time inbound symbols into real-time inbound data. The second baseband processing module converts non-real-time outbound data into non-real-time outbound symbols and converts non-real-time inbound symbols into non-real-time inbound data. The RF section converts the real-time outbound symbols into real-time outbound RF signals, converts real-time inbound RF signals into the real-time inbound symbols, converts the non-real-time outbound symbols into non-real-time outbound RF signals, and converts non-real-time inbound RF signals into the non-real-time symbols. The wireline interface couples the non-real-time outbound data, the non-real-time inbound data, the real-time outbound data, and/or the real-time inbound data to an off-chip wireline connection.

Abstract: A method of optimizing a communication system for receiving and processing an input communication signal includes selecting a first noise margin m to be applied against an external noise present on the input communication signal. The method further includes selecting a second noise margin mi to be applied against an internal noise introduced on the communications signal by the communication system. The second noise margin is a predetermined function of the first noise margin. The method also includes calculating a virtual noise to signal ratio that is a combination of an external noise to signal ratio NSRe, an internal noise to signal ratio NSRi, the first noise margin and the second noise margin. The method further includes adjusting one or more system parameters so as to maintain the virtual noise to signal ratio at a predetermined margin above a required noise to signal ratio.

Abstract: An on-chip baseband-to-RF interface includes a receive/transmit section, a control section, and a clock section. The receive/transmit section, when in a receive mode, provides the stream of inbound symbols from the RF circuit to the baseband processing module and, when in a transmit mode, provides the stream of outbound symbols from the baseband processing module to the RF circuit. The control section provides a control communication path between the baseband processing module and the RF circuit. The clock section provides a clock communication path between the baseband processing module and the RF circuit.

Abstract: In a latch circuit having a bistable pair of cross connected transistors of a first polarity and a third transistor of a second polarity, a current signal greater than a bias current is received at a latch circuit port, amplified with the third transistor, and applied to the latch circuit port. This decreases the time in which the latch circuit port receiving the current signal greater than the bias current reaches a steady state voltage.