Patents by Inventor Ramon A. Gomez
Ramon A. Gomez has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20120183082Abstract: Distortion and aliasing reduction for digital to analog conversion. Synthesis of one or more distortion terms made based on a digital signal (e.g., one or more digital codewords) is performed in accordance with digital to analog conversion. The one or more distortion terms may correspond to aliased higher-order harmonics, distortion, nonlinearities, clipping, etc. Such distortion terms may be known a priori, such as based upon particular characteristics of a given device, operational history, etc. Alternatively, such distortion terms may be determined based upon operation of a device and/or based upon an analog signal generated from the analog to conversion process. For example, frequency selective measurements made based on an analog signal generated from the digital to analog conversion may be used for determination of and/or adaptation of the one or more distortion terms. One or more DACs may be employed within various architectures operative to perform digital to analog conversion.Type: ApplicationFiled: August 31, 2011Publication date: July 19, 2012Applicant: BROADCOM CORPORATIONInventors: Thomas J. Kolze, Bruce J. Currivan, Ramon A. Gomez, Kevin Lee Miller
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Publication number: 20120183110Abstract: Distortion and aliasing reduction for digital to analog conversion. Synthesis of one or more distortion terms made based on a digital signal (e.g., one or more digital codewords) is performed in accordance with digital to analog conversion. The one or more distortion terms may correspond to aliased higher-order harmonics, distortion, nonlinearities, clipping, etc. Such distortion terms may be known a priori, such as based upon particular characteristics of a given device, operational history, etc. Alternatively, such distortion terms may be determined based upon operation of a device and/or based upon an analog signal generated from the analog to conversion process. For example, frequency selective measurements made based on an analog signal generated from the digital to analog conversion may be used for determination of and/or adaptation of the one or more distortion terms. One or more DACs may be employed within various architectures operative to perform digital to analog conversion.Type: ApplicationFiled: August 31, 2011Publication date: July 19, 2012Applicant: BROADCOM CORPORATIONInventors: Thomas J. Kolze, Bruce J. Currivan, Ramon A. Gomez
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Publication number: 20120183027Abstract: Dual digital to analog converters (DACs) with codeword parsing. With respect to a codeword that is provided to a DAC, a processing module (e.g., a rollover processor) operates to divide, partition, etc. the codeword into different respective sub-codewords as may be provided to two or more DAC's. Adaptation with respect to differently generated sub-codewords with respect to different respective codewords may be made in terms of any one or more of a variety of characteristics, including sub-codeword width (e.g., the number of bits included within a sub-codeword), quantization steps, etc. Moreover, such adaptation may be in consideration of any one or more local and/or remote operating characteristics of one or more devices, communication links, etc. within a communication system or network. Different respective sub-codewords undergo processing by different respective DAC's in generating respective analog signals for combination in generating a final or output analog signal.Type: ApplicationFiled: January 12, 2012Publication date: July 19, 2012Applicant: BROADCOM CORPORATIONInventors: Bruce J. Currivan, Thomas J. Kolze, Ramon A. Gomez
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Publication number: 20120183031Abstract: Distortion and aliasing reduction for digital to analog conversion. Synthesis of one or more distortion terms made based on a digital signal (e.g., one or more digital codewords) is performed in accordance with digital to analog conversion. The one or more distortion terms may correspond to aliased higher-order harmonics, distortion, nonlinearities, clipping, etc. Such distortion terms may be known a priori, such as based upon particular characteristics of a given device, operational history, etc. Alternatively, such distortion terms may be determined based upon operation of a device and/or based upon an analog signal generated from the analog to conversion process. For example, frequency selective measurements made based on an analog signal generated from the digital to analog conversion may be used for determination of and/or adaptation of the one or more distortion terms. One or more DACs may be employed within various architectures operative to perform digital to analog conversion.Type: ApplicationFiled: August 31, 2011Publication date: July 19, 2012Applicant: BROADCOM CORPORATIONInventors: Thomas J. Kolze, Bruce J. Currivan, Ramon A. Gomez
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Publication number: 20120182165Abstract: Digital to analog converter (DAC) with ternary or tri-state current source. A DAC including a number of ternary or tri-state devices operates based upon codewords provided thereto. Generally, each respective codeword bit directs operation of one of the respective ternary or tri-state devices within the DAC. Each ternary or tri-state device operates in at least three respective operational states (e.g., based upon the respective values of +1, ?1, or 0 being provided thereto). In a current source implementation, each respective current source is implemented to deliver current, draw current, or neither delivered or draw current. In a voltage source implementation, each respective voltage source is implemented to provide a positive voltage, a negative voltage, or provide no voltage. A DAC coding table may be designed based upon characterization of codewords provided to one or more DACs (e.g., based upon a distribution, a probability density function (PDF), etc. of such codewords).Type: ApplicationFiled: January 12, 2012Publication date: July 19, 2012Applicant: BROADCOM CORPORATIONInventors: Bruce J. Currivan, Thomas J. Kolze, Ramon A. Gomez
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Patent number: 8224274Abstract: A frequency translation module for a broadband multi-channel communication system may include an analog signal converter, a digital channel selection device, and a digital-to-analog (D/A) converter. The analog signal converter is configured to receive a plurality of analog signals, to select analog signals residing in a predefined frequency band, and to convert each of the selected analog signals into a digital signal. The digital channel selection device is configured to process digital signals corresponding to the selected analog signals and to generate a composite output of digital signals representative of the selected analog signals. The D/A converter is configured to translate the composite output to an analog signal output decodable by a receiver. Further, the frequency translation module may include a mixer configured to upconvert the analog signal output to a frequency decodable by the receiver.Type: GrantFiled: December 17, 2008Date of Patent: July 17, 2012Assignee: Broadcom CorporationInventors: Ramon Gomez, Tommy Yu
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Publication number: 20120163290Abstract: Provided is a packet network adapter operable to receive a satellite intermediate frequency (IF) signal and determine whether the satellite IF signal includes DVB content based upon a network client request. When the satellite IF signal includes the requested DVB content, the satellite network adapter produces packetized data for delivery of the digital content to a network client or clients based upon the network client request.Type: ApplicationFiled: December 20, 2011Publication date: June 28, 2012Applicant: BROADCOM CORPORATIONInventors: STEPHEN EDWARD KRAFFT, RAMON A. GOMEZ, RAJESH S. MAMIDWAR
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Patent number: 8198939Abstract: Embodiments of the present invention provide systems and methods for automatic amplifier gain profile control, including a method for automatically configuring a variable gain profile amplifier according to received input and a variable gain profile amplification system. Further, embodiments of the present invention provide systems and methods for increased gain profile accuracy, including methods and systems to reduce the effects of temperature and/or process variations on the gain profile of an amplifier.Type: GrantFiled: August 16, 2011Date of Patent: June 12, 2012Assignee: Broadcom CorporationInventors: Ramon Gomez, Jianhong Xiao, Takayuki Hayashi
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Patent number: 8195117Abstract: An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programmable attenuation and a programmable gain low noise amplifier. Frequency conversion circuitry advantageously uses LC filters integrated onto the substrate in conjunction with image reject mixers to provide sufficient image frequency rejection. Filter tuning and inductor Q compensation over temperature are performed on chip. The filters utilize multi track spiral inductors. The filters are tuned using local oscillators to tune a substitute filter, and frequency scaling during filter component values to those of the filter being tuned. In conjunction with filtering, frequency planning provides additional image rejection. The advantageous choice of local oscillator signal generation methods on chip is by PLL out of band local oscillation and by direct synthesis for in band local oscillator.Type: GrantFiled: May 28, 2010Date of Patent: June 5, 2012Assignee: Broadcom CorporationInventors: Klaas Bult, Ramon A. Gomez
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Patent number: 8165554Abstract: A direct conversion radio frequency (RF) tuner includes a mixer generating I and Q quadrature components. A phase detection circuit generates a phase error measurement between the I quadrature component and the Q quadrature component. A phase correction circuit corrects a phase of the Q component based on the phase error measurement, and outputs a phase-corrected Q quadrature component. An I quadrature component gain control circuit receives the I quadrature component and outputting an amplitude corrected I quadrature component. A Q quadrature component gain control circuit receives the phase corrected Q quadrature component and outputs an amplitude corrected Q quadrature component.Type: GrantFiled: August 7, 2008Date of Patent: April 24, 2012Inventor: Ramon A. Gomez
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Publication number: 20120053760Abstract: Guiding an aircraft to follow a four-dimensional flight path during a descent with a nominal thrust setting corresponding to idle thrust or non-idle thrust includes monitoring actual along-track position and actual vertical position of the aircraft relative to corresponding desired positions on the flight path, generating control commands based on deviations of the actual vertical position of the aircraft from the desired vertical position, and generating elevator commands based on the deviation of the actual along-track position from the desired along-track position, wherein generating control commands includes, if the deviation of the actual vertical position from the desired vertical position indicates that the aircraft is too low, generating a throttle command to increase the thrust setting to above nominal thrust, and generating a speed brake command to deploy speed brakes when the deviation of the actual vertical position from the desired vertical position indicates that the aircraft is too high.Type: ApplicationFiled: June 24, 2011Publication date: March 1, 2012Applicant: THE BOEING COMPANYInventors: Kevin A. BURNSIDE, David GARRIDO-LOPEZ, Kevin R. ELMER, Ramon GOMEZ LEDESMA
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Patent number: 8111183Abstract: Systems and methods for digital upconversion of digital signals are provided. In one embodiment, the system includes a digital frequency adjustment system and a digital to analog conversion system. In a feature of the embodiment, the digital frequency adjustment system consists of set of digital upconversion and upsample elements that shift upwards the frequency of baseband signals. In a further feature of the embodiment, a tree structure of sets of upsample and upconversion elements is used. In another embodiment, the system includes digital and analog frequency adjustment systems in which the frequencies of the input signals are partially upshifted within both the digital and analog domains. Methods for digital upconversion of digital signals are also provided.Type: GrantFiled: August 2, 2010Date of Patent: February 7, 2012Assignee: Broadcom CorporationInventors: Ramon A. Gomez, Donald McMullin
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Patent number: 8107916Abstract: Systems and methods for demodulating a plurality of contiguous channels contained within a bandlimited portion of a radio-frequency (RF) input signal are provided. In an embodiment, the bandlimited portion of the RF input signal is down-converted to baseband. After down-conversion, the bandlimited portion overlaps at baseband with a mirror image of the bandlimited portion. The plurality of contiguous channels within the down-converted signal similarly overlap at baseband and subsequently occupy a bandwidth substantially equal to half that required before down-converting. Image rejection is performed in the digital domain to recover each of the plurality of overlapping channels.Type: GrantFiled: September 3, 2009Date of Patent: January 31, 2012Assignee: Broadcom CorporationInventors: Francesco Gatta, Ramon Gomez, Leonard Dauphinee, Young Joon Shin, Hanli Zou, Massimo Brandolini, Giuseppe Cusmai
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Publication number: 20110298542Abstract: Embodiments of the present invention provide systems and methods for automatic amplifier gain profile control, including a method for automatically configuring a variable gain profile amplifier according to received input and a variable gain profile amplification system. Further, embodiments of the present invention provide systems and methods for increased gain profile accuracy, including methods and systems to reduce the effects of temperature and/or process variations on the gain profile of an amplifier.Type: ApplicationFiled: August 16, 2011Publication date: December 8, 2011Applicant: Broadcom CorporationInventors: Ramon GOMEZ, Jianhong XIAO, Takayuki HAYASHI
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Publication number: 20110284840Abstract: A system or apparatus for monitoring an Integrated Circuit (IC) chip includes: a sense circuit at least partially constructed on the IC chip and configured to produce one or more sense signals each indicative of a corresponding process-dependent circuit parameter of the IC chip; and a digitizer module configured to produce, responsive to the one or more sense signals, one or more digitized signals each representative of a corresponding one of the sense signals. A controller is configured to determine a value of one or more of the process-dependent circuit parameters based on one or more of the digitized signals.Type: ApplicationFiled: November 22, 2010Publication date: November 24, 2011Applicant: Broadcom CorporationInventors: Lawrence M. Burns, Leonard Dauphinee, Ramon A. Gomez, James Y.C. Chang
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Publication number: 20110251740Abstract: The present invention relates to methods of controlling the flight path of an aircraft to follow as closely as possible a predetermined four-dimensional flight path, such as when flying continuous descent approaches. A method of controlling an aircraft to follow a predetermined four-dimensional flight path is provided that comprises monitoring the actual along-track position and the actual vertical position of the aircraft relative to the corresponding desired positions on the predetermined flight path. The aircraft's elevators are used to correct deviations of the along-track position and the aircraft's throttle is used to correct deviations of the vertical position.Type: ApplicationFiled: July 24, 2009Publication date: October 13, 2011Applicant: THE BOEING COMPANYInventors: Ramon Gomez Ledesma, David Garrido-Lopez, Luis Pedro D'Alto
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Patent number: 8035445Abstract: An embodiment of the present invention provides a system comprising a summing device and first amplifier portion. The summing device is coupled to an output node. The first amplifier portion is coupled between an input node and the summing device. The first amplifier portion includes a first amplifier, a first filter, and first and second switches. The first amplifier is coupled between the input node and the summing device on a first path. The first filter is coupled between the input node and the first amplifier on a second path, the second path being in parallel to the first path. The first switch is coupled between the input node and the first amplifier along the first path. The second switch is coupled between the input node and the first filter along the second path.Type: GrantFiled: July 30, 2010Date of Patent: October 11, 2011Assignee: Broadcom CorporationInventors: Ramon A. Gomez, Navin Harwalkar, Bryan Juo-Jung Hung, Francesco Gatta
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Publication number: 20110227768Abstract: Imbalance and distortion cancellation for composite analog to digital converter (ADC). Such an ‘ADC’ is implemented using two or more ADCs may be employed for sampling (e.g., quantizing, digitizing, etc.) of an analog (e.g., continuous time) signal in accordance with generating a digital (e.g., discrete time) signal. Using at least two ADCs allows for the accommodation and sampling of various signals having a much broader dynamic range without suffering degradation in signal to noise ratio (SNR). Generally, the signal provided via at least one of the paths corresponding to at least one of the respective ADCs is scaled (e.g., attenuated), so that the various ADCs effectively sample signals of different magnitudes. The ADCs may respectively correspond to different magnitude and/or power levels (e.g., high power, lower power, any intermediary power level, etc.). Various implementations of compensation may be performed along the various paths corresponding to the respective ADCs.Type: ApplicationFiled: May 29, 2011Publication date: September 22, 2011Applicant: BROADCOM CORPORATIONInventors: Thomas J. Kolze, Bruce J. Currivan, Ramon Gomez, Loke Tan, Lin He
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Patent number: 8022755Abstract: Embodiments of the present invention provide systems and methods for automatic amplifier gain profile control, including a method for automatically configuring a variable gain profile amplifier according to received input and a variable gain profile amplification system. Further, embodiments of the present invention provide systems and methods for increased gain profile accuracy, including methods and systems to reduce the effects of temperature and/or process variations on the gain profile of an amplifier.Type: GrantFiled: August 13, 2010Date of Patent: September 20, 2011Assignee: Broadcom CorporationInventors: Ramon Gomez, Jianhong Xiao, Takayuki Hayashi
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Patent number: 8009075Abstract: A method and apparatus is disclosed to extend a dynamic input range of an analog to digital converter (ADC). A composite ADC may include one or more ADCs. The one or more ADCs compare a signal metric of an analog input signal to quantization levels to produce intermediate digital output signals using one or more non-clipping input values. The composite ADC may select among the one or more intermediate digital output signals based on the signal metric of the analog input signal to produce a final digital output.Type: GrantFiled: May 11, 2009Date of Patent: August 30, 2011Assignee: Broadcom CorporationInventors: Bruce J. Currivan, Thomas J. Kolze, Lin He, Loke Tan, Ramon Gomez, Francesco Gatta