Automatic Control For Increasing Converter Range (e.g., Gain Ranging, Automatic Gain Control) Patents (Class 341/139)
  • Patent number: 10969273
    Abstract: Methods and systems for performing analog-to-digital conversion are proposed. In one example, An analog-to-digital converter (ADC) comprising a quantizer, the quantizer having a first quantization resolution for a first quantization operation subrange and a second quantization resolution for a second quantization operation subrange. At least one of the first quantization resolution or the first quantization operation subrange is programmable. At least one of the second quantization resolution or the second quantization operation subrange is programmable. The quantizer is configured to: receive an input voltage; and based on whether the input voltage belongs to the first quantization operation subrange or to the second quantization operation subrange, quantize the input voltage at the first quantization resolution or at the second quantization resolution to generate a digital output.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: April 6, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Andrew Samuel Berkovich, Xinqiao Liu
  • Patent number: 10943593
    Abstract: A method and device are provided for determining an optimized scale factor to be applied to an excitation signal or a filter during a process for frequency band extension of an audio frequency signal. The band extension process includes decoding or extracting, in a first frequency band, an excitation signal and parameters of the first frequency band including coefficients of a linear prediction filter, generating an excitation signal extending over at least one second frequency band, filtering using a linear prediction filter for the second frequency band. The determination method includes determining an additional linear prediction filter, of a lower order than that of the linear prediction filter of the first frequency band, the coefficients of the additional filter being obtained from the parameters decoded or extracted from the first frequency and calculating the optimized scale factor as a function of at least the coefficients of the additional filter.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: March 9, 2021
    Assignee: Koninklijke Philips N.V.
    Inventors: Magdalena Kaniewska, Stephane Ragot
  • Patent number: 10943594
    Abstract: A method and device are provided for determining an optimized scale factor to be applied to an excitation signal or a filter during a process for frequency band extension of an audio frequency signal. The band extension process includes decoding or extracting, in a first frequency band, an excitation signal and parameters of the first frequency band including coefficients of a linear prediction filter, generating an excitation signal extending over at least one second frequency band, filtering using a linear prediction filter for the second frequency band. The determination method includes determining an additional linear prediction filter, of a lower order than that of the linear prediction filter of the first frequency band, the coefficients of the additional filter being obtained from the parameters decoded or extracted from the first frequency and calculating the optimized scale factor as a function of at least the coefficients of the additional filter.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: March 9, 2021
    Assignee: Koninklijke Philips N.V.
    Inventors: Magdalena Kaniewska, Stephane Ragot
  • Patent number: 10938365
    Abstract: A system for controlling convergence of gain to a target value for a variable gain amplifier comprising a detector module configured to determine a magnitude value of a variable gain amplifier output. Also, part of this embodiment is a comparator module configured to compare the magnitude value to a target value and responsive to the comparison, generate an up_dn signal. A digital control module is configured to receive the up_dn signal and processes the up_dn signal to generate a control vector. One or more digital to analog converters are configured to convert the control vector to an analog control signal such that the analog control signal controls the gain of the variable gain amplifier. Various methods of operation exist for this hardware configured to improve convergence time to a target gain value while controlling the rate of change of the gain.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: March 2, 2021
    Assignee: MACOM Technology Solutions Holdings, Inc.
    Inventor: George L. Barrier, IV
  • Patent number: 10929650
    Abstract: Methods and systems for activity based video recording are provided. Exemplary methods include: receiving an amplified signal to improve sensitivity, the amplified signal being produced by a circuit using an analog differential signal, the analog differential signal being received from a microphone; converting the amplified signal to a digital signal; detecting the digital signal; activating a video camera to record video for a predetermined amount of time using the detecting; storing the recorded video; placing the video camera into power saving mode.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: February 23, 2021
    Assignee: Ooma, Inc.
    Inventors: Govind Vaidya, Shaival Shah
  • Patent number: 10897387
    Abstract: Increasing an analog to digital converter (ADC) dynamic range for a communications device. In the communications device, a reference threshold is established for a peak to average power ratio (PAPR) improvement factor for RF signals received by the communications device. A digital to analog converter (DAC) adjustment factor is established for a DAC to account for inaccuracies of a pre-cancellation DAC and fine tuning of an analog gain of received RF signals. A peak amplitude separation element, disposed within the communications device, evaluates an absolute value of a portion of a particular RF signal against the reference threshold. Upon the peak amplitude separation element determining that the portion is smaller than the reference threshold, the element assigns a zero value to a DAC signal current sample; otherwise, the element assigns a quantized value of the sample to the DAC signal current sample, used in adjusting a post-cancellation signal sample.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: January 19, 2021
    Assignee: Harmonic, Inc.
    Inventor: Adi Bonen
  • Patent number: 10871757
    Abstract: A binary/digital input module implemented on an integrated circuit (IC) chip has a plurality of input channels and includes, for each input channel, a comparator coupled to receive a scaled input voltage and a scaled threshold voltage and further coupled to provide an output value and a digital isolation circuit for data coupled between the comparator and a respective output pin to provide the output value across an isolation barrier.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: December 22, 2020
    Assignee: Texas Instruments Incorporated
    Inventors: Sreenivasa Muniyappa Kallikuppa, Amit G. Kumbasi, Prasanna Udupi Rajagopal
  • Patent number: 10859440
    Abstract: A spectrometer engine and an adjustment method thereof are provided. The spectrometer engine includes a connector, a light sensor, a variable gain amplifier, a variable reference voltage generation circuit, an analog-to-digital converter and a control circuit. The light sensor senses a light to be measured coming from an object to be measured to generate a sensing signal. The variable gain amplifier amplifies the sensing signal according to a first setting parameter to generate an amplified signal. The variable reference voltage generation circuit provides a reference voltage according to a second setting parameter. The analog-to-digital converter converts the amplified signal to a digital signal according to the reference voltage. The control circuit reads the digital signal and adjusts at least one of the first to third setting parameters according to the digital signal for the spectrometer engine to measure the object to be measured again to generate another digital signal.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: December 8, 2020
    Assignee: InnoSpectra Corporation
    Inventors: Cheng-Hsiung Chen, Yung-Yu Huang, Ming-Hui Lin, He-Yi Hsieh, Hsi-Pin Li
  • Patent number: 10816398
    Abstract: A spectrometer and a spectrum measurement method thereof are provided. An analog-to-digital converter converts an amplified signal into a digital signal according to a reference voltage provided by a variable reference voltage generation circuit and amplifies the digital signal according to a target signal value, thereby approximating a signal value of the amplified digital signal to the target signal value. A control circuit outputs a spectral signal according to the amplified digital signal. A user can obtain spectrum measurement results that can be easily interpreted by the spectrometer and the spectrum measurement method thereof, without changing hardware or software, so as to improve convenience of use of the spectrometer.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: October 27, 2020
    Assignee: InnoSpectra Corporation
    Inventors: Yung-Yu Huang, Hsi-Pin Li, He-Yi Hsieh, Cheng-Hsiung Chen, Ming-Hui Lin
  • Patent number: 10783863
    Abstract: Apparatus, methods, and systems that operate to provide interactive streaming content identification and processing are disclosed. An example apparatus includes a classifier to determine an audio characteristic value representative of an characteristic; a transition detector to detect a transition between a music category and a talk category by comparing the audio characteristic value to a threshold value among a set of threshold values, the set of threshold values corresponding to the music category and the talk category; and a context manager to control a device to initiate extraction of fingerprints, responsive to the detected transition between the music category and the talk category.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: September 22, 2020
    Assignee: Gracenote, Inc.
    Inventors: Michael Jeffrey, Markus K. Cremer, Dong-In Lee
  • Patent number: 10785568
    Abstract: In accordance with embodiments of the present disclosure, an apparatus for providing an output signal to an audio transducer may include a control circuit. The control circuit may be configured to predict, based on a magnitude of a signal indicative of the output signal, an occurrence of an event for changing a selectable digital gain and a selectable analog gain and an audio signal path, and responsive to predicting the occurrence of the event, change, at an approximate time in which a zero crossing of the signal indicative of the output signal occurs, the selectable digital gain and the selectable analog gain.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: September 22, 2020
    Assignee: Cirrus Logic, Inc.
    Inventors: Tejasvi Das, Ku He, John L. Melanson
  • Patent number: 10763887
    Abstract: A Sigma-Delta analog to digital converter (ADC) is described. The Sigma-Delta ADC includes a series arrangement of a gain tracker, a first discrete-time integrator stage and a quantizer between an ADC input and an ADC output. The Sigma-Delta ADC includes a digital to analog converter (DAC) having a DAC input and a DAC output connected to the gain tracker. The Sigma-Delta analog to digital converter includes a controller having a control input connected to the quantizer output. The controller provides a digital input to the DAC input and provides a gain control signal to the gain tracker.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: September 1, 2020
    Assignee: NXP B.V.
    Inventor: Xavier Albinet
  • Patent number: 10714113
    Abstract: An objective of the present invention is to correct a temporal envelope shape of a decoded signal with a small information volume and to reduce perceptible distortions.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: July 14, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Kei Kikuiri, Atsushi Yamaguchi
  • Patent number: 10715170
    Abstract: Increasing a dynamic range of a digital to analog converter (DAC). A signal analysis element is positioned prior to the DAC in a processing path. The element evaluates an instantaneous amplitude of a signal to be applied to the DAC. The DAC is capable of a first full scale value. An additional current source supports a second full scale value of the DAC, which is greater than the first full scale value. Upon the element determining that a condition is not satisfied, the element employs current steering to couple the additional current source to a current sink. However, upon the element determining that the condition is satisfied, the element employs current steering to couple the additional current source to an output of the DAC to support the second full scale value of the DAC.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: July 14, 2020
    Assignee: Harmonic, Inc.
    Inventor: Adi Bonen
  • Patent number: 10707885
    Abstract: A receiver includes a variable resolution analog-to-digital converter (ADC) and variable resolution processing logic/circuitry. The processing logic may use feed-forward equalization (FFE) techniques to process the outputs from the ADC. When receiving data from a channel having low attenuation, distortion, and/or noise, the ADC and processing logic may be configured to sample and process the received signal using fewer bits, and therefore less logic, than when configured to receiving data from a channel having a higher attenuation, distortion, and/or noise. Thus, the number of (valid) bits output by the ADC, and subsequently processed (e.g., for FFE equalization) can be reduced when a receiver of this type is coupled to a low loss channel. These reductions can reduce power consumption when compared to operating the receiver using the full (i.e., maximum) number of bits the ADC and processing logic is capable of processing.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: July 7, 2020
    Assignee: Rambus Inc.
    Inventors: Masum Hossain, Kenneth C. Dyer, Nhat Nguyen, Shankar Tangirala
  • Patent number: 10637693
    Abstract: Embodiments are disclosed for moment estimation in high-speed electrical signal processing. An example apparatus includes a first attenuator configured to attenuate a first analog signal to be integrated so as to generate a first attenuated signal. The apparatus further includes a second attenuator configured to attenuate a second analog signal to be integrated so as to generate a second attenuated signal. The apparatus further includes a first slicer configured to directly receive the first attenuated signal from the first attenuator and to slice the first attenuated signal to generate a first quantized signal. The first slicer introduces Gaussian noise to the first attenuated signal. The apparatus further includes a second slicer configured to directly receive the second attenuated signal from the second attenuator and to slice the second attenuated signal to generate a second quantized signal. The second slicer introduces Gaussian noise to the second attenuated signal.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: April 28, 2020
    Assignee: MELLANOX TECHNOLOGIES, LTD.
    Inventor: Shai Cohen
  • Patent number: 10594335
    Abstract: Disclosed are four independent circuits for compression, expansion, companding, and post-processing of a compressed delta-sigma bit-stream. Compression and expansion are based on the use of a second-order (or higher-order) delta-sigma modulator, and a nonlinear operation on a delta-sigma modulated bit-stream. Depending on application, the disclosed circuits can operate as a stand-alone integrated circuit, or as compandor apparatus as proposed. Inherited low-pass filter can be digital or analog. Thus, the only external analog component to the IC chip could be a capacitor C, when low-frequency analog signal is compressed or expanded.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: March 17, 2020
    Inventor: Djuro George Zrilic
  • Patent number: 10595114
    Abstract: Various implementations include headphone systems configured to adapt to changes in user environment. In some particular cases, a headphone system includes at least one headphone including an acoustic transducer having a sound-radiating surface for providing an audio output; a sensor system configured to detect an environmental condition proximate the at least one headphone; and a control system coupled with the at least one headphone and the sensor system, the control system configured to: receive data about the environmental condition from the sensor system; and modify the audio output at the at least one headphone in response to a change in the environmental condition, wherein the audio output includes a continuous audio output provided across a transition between environmental conditions and is configured to vary with the change in the environmental condition.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: March 17, 2020
    Assignee: BOSE CORPORATION
    Inventors: Todd Richard Reily, Keith Dana Martin, Ruben M. Carbonell, Elio Dante Querze, Conor William Sheehan, Amanda Whitt, Saurabh Khanwalkar
  • Patent number: 10554335
    Abstract: A method includes determining an error vector magnitude for analog signals received by multiple antennas in an array of antennas of a base station, assigning quantization bits to a plurality of analog-to-digital converters (ADCs) of the base station such that some ADCs have different numbers of quantization bits allocated from a fixed total number of available quantization bits of the base station, and applying the analog signals to the ADCs with quantization bits assigned to reduce the error vector magnitude of the analog signals.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: February 4, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Alan Gatherer, Jinseok Choi
  • Patent number: 10545561
    Abstract: A system may include a plurality of processing paths and a controller. The processing paths may include a first processing path configured to generate a first digital signal based on an analog input signal and one or more other processing paths each configured to consume a smaller amount of power than the first processing path, and each configured to generate a respective digital signal based on the analog input signal, wherein one of the other processing paths has a noise floor based on fidelity characteristics of the analog input signal or subsequent processing requirements of a digital output signal generated from at least one of the first digital signal and the respective digital signals. The controller may be configured to select one of the first digital signal and the respective digital signals as the digital output signal of the processing system based on a magnitude of the analog input signal.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: January 28, 2020
    Assignee: Cirrus Logic, Inc.
    Inventors: Edmund Mark Schneider, Daniel J. Allen, Saurabh Singh, Aniruddha Satoskar
  • Patent number: 10523227
    Abstract: An A/D converter includes an adder that calculates a difference between an analog input signal and a predicted value, a quantizer that quantizes the difference output from the adder to convert the analog input signal to a digital signal, a prediction filter that generates a predicted value from the digital signal output from the quantizer, and a D/A converter that converts the predicted value from a digital signal to an analog signal and output the predicted value to the adder. The predicted value before being subjected to conversion to the analog signal by the D/A converter defines and functions as an A/D converted output of the analog input signal input to the adder.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: December 31, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yasuhide Takase, Yasuyuki Matsuya, Eri Mizukami, Yuji Inagaki, Kazuki Mizukami, Nozomi Watanabe, Riku Yonekawa
  • Patent number: 10447288
    Abstract: This disclosure relates to an analog-to-digital converter, ADC.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: October 15, 2019
    Assignee: Dialog Semiconductor (UK) Limited
    Inventor: Ivan Muhoberac
  • Patent number: 10439636
    Abstract: A variable feedback gain delta modulator includes group of capacitors commonly connected to a first terminal and are respectively classified into a first capacitor group and a second capacitor group; a comparator for sequentially generating n-bit digital output signals based on a voltage of the first terminal; and a switch group including switches respectively connected to the capacitors, wherein the switches are respectively classified into a first switch group and a second switch group respectively connected to the first capacitor group and the second capacitor group, and the first switch group and the second switch group respectively operate according to a first control signal and a second control signal that are determined based on the n-bit digital output signals and the variable feedback gain.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: October 8, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Hoon Lee, Jong-woo Lee, Chilun Lo, Seung-hyun Oh, Jong-mi Lee
  • Patent number: 10439626
    Abstract: Disclosed systems, methods and devices relate, generally, to autonomous signal processing and autonomous signal processing units of a microcontroller. The autonomous data processing units may be configured to perform one or more functions independently, without input from a processing unit of the microcontroller, and may, monitor and/or perform operations that are part of one or more control loops that operate independent of the microcontroller processor. The control loops may or may not be in support of control loops monitored by the processor of the microcontroller.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: October 8, 2019
    Assignee: Microchip Technology Incorporated
    Inventor: Jacob Lunn Lassen
  • Patent number: 10429460
    Abstract: A radio frequency (RF) antenna device (140) provides magnetic resonance (MR) information from an examination space (116) of a MR imaging system (110). At least one RF coil (142) with at least one connection port (144) receives an analog MR information signal and at least one analog-to-digital converter (ADC) (150) converts the analog MR information signal into a digital MR information signal with a sampling frequency which is below the Nyquist frequency of an RF carrier signal. The at least one ADC (150) is a RF band-pass sub-sampled sigma-delta analog-to-digital converter. The RF coil and the components into the RF antenna device are integrated to provide the MR information signal as a digital signal. The digital MR information signal can easily be further processed and transmitted, even in the presence of strong magnetic and RF fields.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: October 1, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Sotir Filipov Ouzounov
  • Patent number: 10432150
    Abstract: An apparatus may include a digital-to-analog converter configured to convert a digital audio input signal into a differential analog input signal with a substantially non-zero common-mode voltage, an amplifier configured to receive the differential analog input signal and generate at an amplifier output a ground-centered output signal from the differential analog input signal, a clamp configured to selectively couple and decouple the amplifier output to a ground voltage, and a controller configured to control the clamp to selectively couple and decouple the amplifier output to a ground voltage responsive to transitions between power states of a device comprising the apparatus and control the differential analog input signal generated by the digital-to-analog converter in order to minimize a level transition current through an output load coupled to the amplifier output during transitions between the power states.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: October 1, 2019
    Assignee: Cirrus Logic, Inc.
    Inventors: Ramya Balasundaram, Bhupendra Manola, Pradeep Dhananjay
  • Patent number: 10416697
    Abstract: A system, in some embodiments, comprises: a multi-resistor Wheatstone bridge supplied by a first current source; and a second current source coupled to the bridge and configured to at least partially compensate for a voltage detected by an analog-to-digital converter (ADC), said voltage indicative of an alteration of a physical parameter affecting the bridge, wherein the ADC produces a digital code that represents said voltage.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: September 17, 2019
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Jacques Jean Bertin
  • Patent number: 10396726
    Abstract: A preamplifier for musical instruments includes: an operational amplifier 40 to amplify an inputted analog audio signal; a dual-unit variable resistor 30 to change an amplification factor of the operational amplifier 40 by manually operating an operation unit; an A/D converter 51 to convert the amplified analog audio signal to a digital audio signal; and a digital signal processor 60 to digital-signal process the digital audio signal, wherein the dual-unit variable resistor 30 includes a second variable resistor 32 to output a detection signal in accordance with an amount of operation of the operation unit, and the digital signal processor 60 is capable of implementing, based on a value of the detection signal, a first digital gain process to amplify the digital audio signal and/or a second digital gain process to attenuate the digital audio signal.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: August 27, 2019
    Assignee: ZOOM CORPORATION
    Inventor: Michihito Nozokido
  • Patent number: 10365374
    Abstract: The present disclosure is directed to a receiver for Automatic Dependent Surveillance Broadcast (ADS-B) verification of a target aircraft including a first input for receiving flight tracking information from a target aircraft that indicates positional information of the target aircraft. The receiver further includes a second input for receiving positional and heading information indicating the location and orientation of a multi-element array antenna configured to be attached to the receiver, and a processing module that generates a measured bearing derived from angle of arrival data, and an expected bearing of the target aircraft derived from the indicated positional information of the target aircraft and the positional and heading information defining the receiver location and orientation. A comparator compares the expected bearing to the measured bearing and verifies the ADS-B flight tracking information of the target aircraft and outputs an indication of authenticity based on the verification.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: July 30, 2019
    Assignee: THE BOEING COMPANY
    Inventors: Timothy Allen Murphy, William Matthew Harris
  • Patent number: 10361710
    Abstract: The present application relates to a reconfigurable analog front-end circuit and a reconfigurable Ethernet transceiver with a reconfigurable analog front-end circuit. The circuit is reconfigurable using the at least one signal-path switching element controlled by a mode signal to operationally establish a first or a second signal path. The first signal path comprises an optional first signal-conditioning section and a shared ADC. The second signal path comprises an optional second signal-conditioning section, an upstream ADC and the shared ADC. The signal paths are selectively switched in response to a mode signal.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: July 23, 2019
    Assignee: NXP B.V.
    Inventors: Yu Lin, Marcello Ganzerli
  • Patent number: 10341145
    Abstract: Described is an apparatus which comprises: a Variable Gain Amplifier (VGA); a set of samplers to sample data output from the VGA according to a clock signal; and a Clock Data Recovery (CDR) circuit to adjust phase of the clock signal such that magnitude of a first post-cursor signal associated with the sampled data is substantially half of a magnitude of a primary cursor tap associated with the sampled data.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: July 2, 2019
    Assignee: Intel Corporation
    Inventors: Tawfiq Musah, Hariprasath Venkatram, Bryan K. Casper
  • Patent number: 10298189
    Abstract: Embodiments of the disclosure relate to an analog-to-digital converter (ADC) with gain adjustment. One embodiment of an ADC with autonomous gain adjustment includes an ADC, a gain stage coupled to the ADC, a scaler coupled to the ADC, and a control logic that may be configured to configure the gain of the gain stage responsive to measured output of the ADC.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: May 21, 2019
    Assignee: Microchip Technology Incorporated
    Inventor: Jacob Lunn Lassen
  • Patent number: 10270513
    Abstract: A broadcast receiving apparatus is provided, which includes an input that receives input signals, a signal processing unit which amplifies only a signal in a band that corresponds to a selected channel from among the input signals, and automatic gain controls with a first sensitivity so that the amplified signal maintains a preset level value, and then outputs the result, a demodulator which demodulates the signals output from the signal processing unit into digital transport stream signals, a controller configured to control the signal processing unit so that the signal is automatic gain controlled with a second sensitivity less sensitive than the first sensitivity, when the selected channel is an ultra high frequency (UHF) range signal.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: April 23, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun-jong Shin, Byung-ju Kwak, Young-jin Lee, Jun-seok Kang, Chang-hyo Kim, Kyoung-seok Noh, Dong-jin Park
  • Patent number: 10263630
    Abstract: In accordance with embodiments of the present disclosure, a processing system may include a plurality of processing paths and a controller. The plurality of processing paths may include a static processing path configured to generate a first digital signal based on an analog input signal and a dynamic processing path configured to generate a second digital signal based on the analog input signal, wherein a parameter of the dynamic processing path is determined based on a characteristic of the analog input signal. The controller may be configured to select the first digital signal as a digital output signal of the processing system when a change is occurring to the characteristic and select the second digital signal as the digital output signal in the absence of change occurring to the characteristic.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: April 16, 2019
    Assignee: Cirrus Logic, Inc.
    Inventors: Edmund Mark Schneider, Daniel J. Allen, Saurabh Singh, Aniruddha Satoskar
  • Patent number: 10263632
    Abstract: Methods and systems are provided for gain control during communications. A first electronic device may communicated data to a second electronic device; may monitor conditions and/or parameters affecting estimated reception performance at the second electronic device; and may communicated to the second electronic device, via a connection separate from and different than a connection used in communicating the data, information relating to the monitored conditions, to enable adjusting functions relating to reception of the data at the second electronic device. Based on the received information, at least one reception related function in the second electronic device may be controlled. The controlling may include determining, based on the received information, adjustments to the at least one reception related function or to a related parameter. The at least one reception related function may include applying gain to at least a portion of signals received by the second electronic device.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: April 16, 2019
    Assignee: MAXLINEAR, INC.
    Inventors: Raja Pullela, Curtis Ling
  • Patent number: 10263636
    Abstract: A scalable dynamic range analog-to-digital converter. In one instance, a method of scaling a dynamic range of an analog-to-digital converter is provided. The method includes operating the analog-to-digital converter at a first dynamic range. The method also includes receiving a radio frequency signal and detecting an on-channel signal level of the radio frequency signal. The method also includes when the on-channel signal level is above an on-channel threshold, operating the analog-to-digital converter at a second dynamic range. The method also includes when the on-channel signal level is below the on-channel threshold, operating the analog-to-digital converter at the first dynamic range.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: April 16, 2019
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Charles R. Ruelke, Joshua E. Dorevitch, Nir Corse
  • Patent number: 10250284
    Abstract: A method of receiving an RF signal is applied to a receiving circuit of a wireless communication system and amplifies the RF signals according to an analog gain. The RF signal includes data signals and interference signals. The method includes steps of: employing a low noise amplifier (LNA) to amplify the RF signal according to a first gain to generate an amplified RF signal, the first gain being associated with a first bias signal; detecting the amplified RF signal in an RF band to generate a control signal corresponding to the power of the amplified RF signal, the control signal being an analog signal; providing the first bias signal to the LNA according to the control signal; down-converting the amplified RF signal to generate an intermediate frequency or baseband signal; and filtering the intermediate frequency or baseband signal to filter out the interference signal and thus obtain the data signal.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: April 2, 2019
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventor: Yi-Chang Shih
  • Patent number: 10243579
    Abstract: The disclosure includes a successive approximation register (SAR) analog to digital converter (ADC). The SAR ADC includes a sampling network to store a sample of an analog signal. The SAR ADC also includes a comparator to successively compare the sample to reference values to determine a digital value corresponding to the sample of the analog signal. The comparator employs a plurality of comparator preamplifiers. The comparator also includes a programmable trim filter. The programmable trim filter is selectively set to adjust a bandwidth of the comparator preamplifiers to a bandwidth value corresponding with a preamplifier settling time subceeding a preamplifier settling threshold.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: March 26, 2019
    Assignee: AVNERA CORPORATION
    Inventors: Wai Lee, Garry N. Link
  • Patent number: 10235981
    Abstract: A method is provided including separating a first file into a first plurality of instrument tracks and a second file into a second plurality of instrument tracks, wherein each instrument track of each of the first plurality and second plurality corresponds to a type of instrument; selecting a first instrument track from the first plurality of instrument tracks and a second instrument track from the second plurality of instrument tracks based at least on the type of instrument corresponding to the first instrument track and the second instrument track; fading out other instrument tracks from the first plurality of instrument tracks; performing a crossfade between the first instrument track and the second instrument track; and fading in other instrument tracks from the second plurality of instrument tracks.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: March 19, 2019
    Assignee: Nokia Technologies Oy
    Inventors: Miikka Tapani Vilermo, Arto Juhani Lehtiniemi, Lasse Juhani Laaksonen, Mikko Tapio Tammi
  • Patent number: 10230342
    Abstract: Improved systems and methods for processing and recording audio received from one or more wired or wireless devices. In one aspect, the dynamic range of an analog-to-digital conversion system is extended. In another aspect, processes for generating a timecode, displaying and/or freezing a timecode display, and displaying an electronic timecode slate. Displaying a timecode slate may include rotating the orientation of the timecode display one hundred and eighty degrees to allow the timecode display to appear upright to individuals and/or equipment viewing and/or recording same. Displaying a timecode slate may also include an audible tone for synchronization of audio and video recordings.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: March 12, 2019
    Assignee: Zaxcom, Inc.
    Inventors: Glenn Norman Sanders, Howard Glenn Stark
  • Patent number: 10206186
    Abstract: A method for operating a User Equipment (UE) is provided to minimize performance degradation due to a difference between a transmit power for D2B communication and a transmit power for Device to Device (D2D) communication. The method includes transmitting a signal for D2B communication to a Base Station (BS) and a signal for D2D communication to another UE in a first time period, and configuration for the D2D communication, when it is determined there is a difference between a transmit power for the D2B communication and a transmit power for the D2D communication.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: February 12, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Wook Song, Hyung-Jong Kim, Jong-Han Lim
  • Patent number: 10187075
    Abstract: Residue generation systems for use in continuous-time and hybrid ADCs are described. An exemplary system includes a filter, e.g. a FIR filter, for generating a filtered analog output based on an analog input, a quantizer for generating a digital input to a feedforward DAC based on the filtered analog output generated by the filter, a feedforward DAC for generating a feedforward path analog output based on the digital input generated by the quantizer, and a subtractor for generating a residue signal based on the feedforward path analog output. Providing a filter that filters the analog input before it is quantized advantageously allows blockers to be attenuated before they are sampled and aliased by the quantizer. At least some of the residue generation systems described herein may be implemented with relatively small design and power dissipation overheads.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: January 22, 2019
    Assignee: ANALOG DEVICES GLOBAL UNLIMITED COMPANY
    Inventors: Sharvil Pradeep Patil, Hajime Shibata, Yunzhi Dong, David Nelson Alldred, Frank Murden, Lawrence A. Singer
  • Patent number: 10063986
    Abstract: In an audio processing device having a first output route and a second output route, to be able to reproduce the same audio signal as the first output rote at the second output route. A microcomputer 2 connects a Zone2 reproduction device 6 with a DAC 10 for a surround back by a switch 17 and the DAC 10 for the surround back with a surround back analog output terminal 15 by a switch 18 in case that the DSD data is reproduced at a Zone2 output route.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: August 28, 2018
    Assignee: Onkyo Corporation
    Inventors: Junichi Kobayashi, Susumu Koaze
  • Patent number: 10061554
    Abstract: A system and method of adjusting digital audio sampling used with wideband audio includes: performing audio sampling on an analog audio signal at an initial sampling rate and an initial bit rate over a wideband audio frequency range; generating a digital audio signal based on the audio sampling; detecting a qualitative error rate between the analog audio signal and the digital audio signal; and decreasing the initial sampling rate, the initial bit rate, or both for sampling subsequent analog audio when the qualitative error is below a threshold.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: August 28, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Gaurav Talwar, Xufang Zhao, Md Foezur Rahman Chowdhury, Eli Tzirkel-Hancock
  • Patent number: 10044510
    Abstract: An electronic device is provided. The electronic device includes a processor, a memory configured to connect to the processor, and an embedded secure element (eSE) configured to connect to the processor over a physical channel to receive secure data sent by the processor over the physical channel, and store the secure data.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: August 7, 2018
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Eun Young Kwon, Bum Han Kim, Jong Su Kim, Michael Pak, Dae Haeng Cho, Dong Ho Jang
  • Patent number: 10033415
    Abstract: A data calculator repeatedly calculates electric power of a delayed transmission signal and a multiplication value of a complex conjugate of the delayed transmission signal and a feedback signal. A memory stores, for each delayed electric power address corresponding to the electric power, a first total value that is the total of electric power of the delayed transmission signal and a second total value that is the total of the multiplication value. A range adjuster adjusts the upper limit of a determination reference range according to the maximum reference address. When a determiner determines that the number of repeats of the data calculator is sufficient based on the determination reference range, a vector calculator calculates a distortion correction vector based on a distortion vector calculated from the ratio between the first total value and the second total value. An updater updates the distortion correction vector stored in a look-up table based on the distortion correction vector.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: July 24, 2018
    Assignee: ICOM INCORPORATED
    Inventor: Shinnichi Kishibe
  • Patent number: 10015591
    Abstract: A pickup apparatus includes a digital signal processor, at least one microphone, multiple amplifiers, and multiple analog-to-digital converters (ADCs), where each microphone is configured to receive an audio signal, and send the audio signal to an amplifier corresponding to the microphone, each amplifier is configured to amplify the received audio signal, and send the amplified audio signal to an analog-to-digital converter corresponding to the amplifier, each analog-to-digital converter is configured to convert the received audio signal into a digital signal, and send the digital signal to the digital signal processor, and the digital signal processor is configured to receive multiple digital signals sent by the multiple analog-to-digital converters, determine an unclipped digital signal from the multiple received digital signals, and determine an output signal according to a gain value corresponding to the unclipped digital signal.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: July 3, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yulong Li, Jingfan Qin, Hui Wang, Xiaohong Dong, Yunneng Mo
  • Patent number: 10002596
    Abstract: A method is provided including separating a first file into a first plurality of instrument tracks and a second file into a second plurality of instrument tracks, wherein each instrument track of each of the first plurality and second plurality corresponds to a type of instrument; selecting a first instrument track from the first plurality of instrument tracks and a second instrument track from the second plurality of instrument tracks based at least on the type of instrument corresponding to the first instrument track and the second instrument track; fading out other instrument tracks from the first plurality of instrument tracks; performing a crossfade between the first instrument track and the second instrument track; and fading in other instrument tracks from the second plurality of instrument tracks.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: June 19, 2018
    Assignee: Nokia Technologies Oy
    Inventors: Miikka Tapani Vilermo, Arto Juhani Lehtiniemi, Lasse Juhani Laaksonen, Mikko Tapio Tammi
  • Patent number: 9998105
    Abstract: A first analog block includes a first plurality of switched capacitors and a second analog block includes a second plurality of switched capacitors. A switch associated with the first plurality of switched capacitors as well as a switch associated with the second plurality of switched capacitors may be configured based on one or more analog functions. The configuring of the first analog and the second analog block may include the configuring of the switch associated with the first plurality of switched capacitors when the analog function is associated with a first single ended signal and the configuring of both the switch associated with the first plurality of switched capacitors and the switch associated with the second plurality of switched capacitors when the analog function is associated with a differential signal.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: June 12, 2018
    Assignee: Cypress Semiconductor Corporation
    Inventors: Eashwar Thiagarajan, Harold Kutz, Jaskarn Singh Johal, Erhan Hancioglu, Hans Klein, Bruce Byrkett, Mark Hastings, Dennis Seguine, Kendall Castor-Perry, Monte Mar, Gajender Rohilla
  • Patent number: 9969655
    Abstract: The disclosure provides for an article including a substrate, an environmental barrier coating (EBC), a bondcoat and a boron source. The substrate may include a silicon-including ceramic material. The EBC may be disposed over the substrate, and the bondcoat may disposed between the substrate and the EBC. The bondcoat may include silicon. The boron source may be disposed within the article to provide an effective amount of boron to form an oxide including silicon and at least 0.1 weight percent boron during exposure of the bondcoat to an oxidizing environment at a temperature greater than 900 degrees Celsius. The oxide may be a borosilicate glass that is substantially devitrification resistant to prevent spallation of the EBC and thereby enhance the temperature capability of the article.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: May 15, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Julin Wan, Don Mark Lipkin