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| Number | Title | Issue Date |
| 8184683 | Digital interface and related event manager for integrated circuits In one embodiment, the present invention includes a transceiver coupled to a baseband processor to receive digital control information that includes both event and schedule information, and which stores the digital control information in a storage of the transceiver... | 05/22/2012 |
| 8184488 | Systems and methods for controlling integrated circuit operation with below ground pin voltage Systems and methods for controlling operation of an integrated circuit by applying below ground voltage to one or more pins of the integrated circuit, and in which the application of a below ground pin voltage may be employed as an initiator of (or condition for) a ... | 05/22/2012 |
| 8179380 | Method and apparatus for implementing a capacitive touch slider A capacitive touch slider array comprises a first conductive trace associated with a first sensing node. The first conductive trace includes a first conductive line and a plurality of first conductive fingers extending from the first conductive line. The plurality o... | 05/15/2012 |
| 8179163 | Method and apparatus for charge pump linearization in fractional-PLLs Efficient techniques improve the linearity of a charge pump in fractional-N PLLs. A feedback clock pulse several VCO clock periods wide is formed and supplied to a phase frequency detector (PFD). The down pulse generated by the PFD is fixed to eliminate the nonlinea... | 05/15/2012 |
| 8174415 | Broadcast AM receiver, FM receiver and/or FM transmitter with integrated stereo audio codec, headphone drivers and/or speaker drivers An apparatus includes processor and a control interface. The processor is adapted to in a first mode of operation, operate as part of one of a wireless receiver and a wireless transmitter and in a second mode of operation. The processor also processes a first audio ... | 05/08/2012 |
| 8169108 | Capacitive isolator An integrated circuit provides high voltage isolation capabilities. The circuit includes a first area containing a first group of functional circuitry located in a substrate of the integrated circuit. This circuit also includes a second area containing a second grou... | 05/01/2012 |
| 8166222 | USB transceiver circuitry including 5 volt tolerance protection An integrated circuit includes USB communication circuitry for communicating via a USB interface. The USB transceiver circuitry transmits data to and from the integrated circuit over the USB interface. The USB transceiver circuitry further provides protection to int... | 04/24/2012 |
| 8155610 | Combining multiple frequency modulation (FM) signals in a receiver In one embodiment, the present invention provide a method for detecting signal quality metrics of a constant modulo (CM) signal received in two different signal paths, and combining the signal from the two signal paths based at least in part on the detected first an... | 04/10/2012 |
| 8154336 | Method and apparatus for reducing interference A method and apparatus is provided for reducing interference in circuits. A management strategy is provided to reduce reference spurs and interference in circuits. The management strategy uses a combination of one or more techniques which reduce the digital current,... | 04/10/2012 |
| 8151029 | Controlling passthrough of communication between multiple buses A demodulator can include first data and clock pads to couple the demodulator to a host device via a first bus, and second data and clock pads to couple the demodulator to a radio frequency (RF) tuner via a second bus. The device may further include passthrough logi... | 04/03/2012 |
| 8150358 | Method for performing dual mode image rejection calibration in a receiver A method is disclosed for performing dual mode image rejection calibration in a receiver. A first image correction factor is acquired using a first known signal associated with a first signal band during a startup mode. The first image correction factor has a plural... | 04/03/2012 |
| 8150346 | Detecting a signal in the presence of noise In one embodiment, the present invention includes a method for receiving an incoming radio frequency (RF) signal in a receiver, estimating a signal-to-noise ratio (SNR) of a constant modulus (CM) signal in the incoming RF signal based on a calculated magnitude of th... | 04/03/2012 |
| 8145172 | Low-cost receiver using tracking filter A receiver (400) includes a tracking bandpass filter (420) and a signal processing circuit (430-480). The tracking bandpass filter (420) has a first input for receiving a radio frequency (RF) signal, and an output, and includes a f... | 03/27/2012 |
| 8145170 | Low-cost receiver using tracking bandpass filter and lowpass filter A receiver (400) includes a tracking bandpass filter (420), a tunable lowpass filter (434), a local oscillator (442), and a mixer (444). The tracking bandpass filter (420) has an input for receiving a radio frequency (RF) in... | 03/27/2012 |
| 8143961 | Technique for detecting crystals In at least one embodiment of the invention, an apparatus includes an integrated circuit, which includes a first oscillator terminal and an oscillator discrimination circuit. The oscillator discrimination circuit is operative to generate an indicator of a capacitanc... | 03/27/2012 |
| 8138846 | Precision, temperature stable clock using a frequency-control circuit and a single oscillator A frequency-control circuit, which is configured to receive a first signal having a first untuned frequency from a first oscillator, and to alter one or more pulses of the first signal to tune an output frequency of an output clock signal to have an average frequenc... | 03/20/2012 |
| 8136409 | Performing metering using pulse counting An apparatus can include a first detector to receive a first signal from a first switch configured to open and close based on position of a metering wheel associated with a flow line. The apparatus can further include a first counter to count within a first range ba... | 03/20/2012 |
| 8130888 | Calibrating a phase detector and analog-to-digital converter offset and gain The present invention includes apparatus and methods to calibrate a phase detector and an analog-to-digital converter (ADC) offset and gain. In one such embodiment, an apparatus includes a phase detector to generate an error pulse and a reference pulse, a combiner t... | 03/06/2012 |
| 8130882 | Radio receiver having a multipath equalizer A radio receiver has a multipath equalizer that includes a filter and a coefficient estimator. The filter provides a reconstructed signal by applying a transfer function including a reflection coefficient and a delay coefficient to a multipath radio signal. The coef... | 03/06/2012 |
| 8129973 | Controlling a voltage regulator A wireless system includes a radio and a voltage regulator, which provides a supply voltage to the radio. The voltage regulator includes a storage element, at least one switch that is coupled to the storage element and a controller. The controller operates the volta... | 03/06/2012 |
| 8126420 | Correcting for phase noise of an oscillator In one embodiment, the present invention includes a method for digitizing a phase noise value indicative of a level of phase noise present in a LO signal and downconverting an RF signal to a second frequency signal using the LO signal. This downconversion can cause ... | 02/28/2012 |
| 8126091 | RDS/RBDS decoder with reliable values A method is provided that contemplates including filtered decode values in an RDS/RBDS output signal. The filtered decode values are generated from reliable values. The reliable values are generated from corresponding received values from each of at least two groups... | 02/28/2012 |
| 8121575 | Modulated IF receiver and method A modulated intermediate frequency receiver is shown having a low noise amplifier for receiving a radio frequency signal and a modulation source for generating a modulation signal. A local oscillator generates a modulated local oscillator signal in response to the m... | 02/21/2012 |
| 8115663 | Mismatch-immune digital-to-analog converter In an embodiment, a digital-to-analog converter (DAC) includes inputs for receiving first and second signals encoded as a digital signal pair including overlapping low value portions that are substantially equal in duration to overlapping high value portions, within... | 02/14/2012 |
| 8111204 | Slot antenna for a circuit board ground plane In one embodiment, the present invention includes a slot antenna that is formed on a ground plane of a circuit board. The slot antenna may be connected to radio circuitry adapted on the circuit board by way of a feedline, which is coupled to the radio circuitry and ... | 02/07/2012 |
| 8107562 | Combining soft decisions in a weather band radio According to one aspect of the present invention, an apparatus is provided to enable weather band radio signals to be received and processed using a digital signal processor (DSP). The DSP can include functionality to implement both frequency modulation (FM) demodul... | 01/31/2012 |
| 8095710 | System and method of providing electrical isolation In a particular embodiment, a power sourcing equipment (PSE) device is disclosed that includes a plurality of network input/output (I/O) interfaces adapted to physically and electrically connect to a respective plurality of cables. The PSE device further includes a ... | 01/10/2012 |
| 8086211 | Magnetically differential input A magnetically differential input circuit is arranged to define at least two loops, wherein each of the loops traverses the input of a receiving circuit. The loops are physically arranged so that a source of interference induces opposing signals in the loops, thereb... | 12/27/2011 |
| 8064872 | On chip transformer isolator An integrated circuit having voltage isolation capabilities includes a first area of the integrated circuit containing functional circuitry that is located in the substrate of the integrated circuit. A second area of the integrated circuit contains an integrated RF ... | 11/22/2011 |
| 8064861 | Circuit and method for antenna selection in an antenna diversity receiver An asynchronous receiver system has multiple antennae and an asynchronous receiver circuit with a signal input. The asynchronous receiver circuit receives a wireless signal at the signal input and generates a first quality signal responsive to the received wireless ... | 11/22/2011 |
| 8064179 | Integrated circuit including a switching regulator design for power over Ethernet devices A powered device includes an interface that is responsive to a powered network and an integrated circuit device that is coupled to the interface to receive power and data from the powered network. The integrated circuit device includes a power rectification and prot... | 11/22/2011 |
| 8060066 | System and method for transmitting RDS/RBDS data A receiver including first circuitry configured to combine corresponding soft decision values from at least two groups of RDS/RBDS data transmitted as part of a broadcast channel to generate a set of combined values and second circuitry configured to identify a subs... | 11/15/2011 |
| 8060049 | Integrated low-if terrestrial audio broadcast receiver and associated method An integrated low-IF (low intermediate frequency) terrestrial broadcast receiver and associated method are disclosed that provide an advantageous and cost-efficient solution. The integrated receiver includes a mixer, local oscillator generation circuitry, low-IF con... | 11/15/2011 |
| 8058940 | Dual in-situ mixing for extended tuning range of resonators A dual in-situ mixing approach for extended tuning range of resonators. In one embodiment, a dual in-situ mixing device tunes an input radio-frequency (RF) signal using a first mixer, a resonator body, and a second mixer. In one embodiment, the first mixer is couple... | 11/15/2011 |
| 8055932 | Precision oscillator for an asynchronous transmission system A precision oscillator for an asynchronous transmission system. An integrated system on a chip with serial asynchronous communication capabilities includes processing circuitry for performing predefined digital processing functions on the chip and having an associat... | 11/08/2011 |
| 8054125 | Charge pump with low power, high voltage protection circuitry A charge pump circuitry for generating a charging voltage for programming a one time programmable (OTP) memory includes a charge pump sub-circuit for generating the charging voltage in a second voltage range when the charging voltage exceeds a threshold level. A pre... | 11/08/2011 |
| 8050313 | Single chip low power fully integrated 802.15.4 radio platform A single chip radio platform is disclosed for communicating with an RF channel. An RF front end is provided having a receive/transmit capability to receive an RF carrier modulated with digital data and convert the data to analog baseband data, and modulate an RF car... | 11/01/2011 |
| 8049573 | Bidirectional multiplexed RF isolator An isolator provides bidirectional data transfer for a plurality of communications channels. First and second dies are located on first and second sides of a voltage isolation barrier and have a first and second plurality of digital data input/output pins associated... | 11/01/2011 |
| 8049475 | 5 volt tolerant voltage regulator A voltage regulator circuit comprises an error amplifier for generating an error signal responsive to a reference voltage in a feedback signal. A feedback circuit provides the feedback voltage signal to the error amplifier and a driver circuit provides regulated out... | 11/01/2011 |
| 8045656 | Weather band radio having digital frequency control In one embodiment, the present invention includes a digital mixer to receive and digitally mix incoming weather band radio data with a control signal, a digital demodulator to demodulate the data to obtain a demodulated signal, and a digital feedback loop coupled be... | 10/25/2011 |
