Patents Assigned to Texas Instruments
  • Patent number: 9077996
    Abstract: A video encoder includes an entropy encoder that computes a predicted motion vector (PMV) for each of a plurality of macroblocks in a video frame based on motion vectors of multiple other macroblocks. The video encoder also includes a motion estimator that determines a predicted motion vector for a given macroblock by reusing, as the predicted motion vector for the given macroblock, only the PMV computed by the entropy encoder for a macroblock immediately on top of the given macroblock.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: July 7, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Shyam Jagannathan, Naveen Srinivasamurthy
  • Patent number: 9075928
    Abstract: A coherence maintenance address queue tracks each memory access from receipt until the memory reports the access complete. The address of each new access is compared against the address of all entries in the queue. This check is made when the access is ready to transmit to the memory. If there is no address match, then the current access does not conflict with any pending access. If there is an address match, the current access is stalled. The multi-core shared memory controller would then typically proceed to another access waiting a slot to the endpoint memory. Stored addresses in the coherence maintenance address queue are retired when the endpoint memory reports completion of the operation. At this point the access is no longer a hazard to following operations.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: July 7, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Matthew D Pierson, Kai Chirca
  • Patent number: 9076670
    Abstract: In an integrated circuit that includes an NMOS logic transistor, an NMOS SRAM transistor, and a resistor, the gate of the SRAM transistor is doped at the same time that the resistor is doped, thereby allowing the gate of the logic transistor to be separately doped without requiring any additional masking steps.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: July 7, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Himadri Sekhar Pal, Ebenezer Eshun, Shashank S. Ekbote
  • Patent number: 9075113
    Abstract: IEEE 1149.1 Test Access Ports (TAPs) may be utilized at both IC and intellectual property core design levels. TAPs serve as serial communication ports for accessing a variety of embedded circuitry within ICs and cores including; IEEE 1149.1 boundary scan circuitry, built in test circuitry, internal scan circuitry, IEEE 1149.4 mixed signal test circuitry, IEEE P5001 in-circuit emulation circuitry, and IEEE P1532 in-system programming circuitry. Selectable access to TAPs within ICs is desirable since in many instances being able to access only the desired TAP(s) leads to improvements in the way testing, emulation, and programming may be performed within an IC. A TAP linking module is described that allows TAPs embedded within an IC to be selectively accessed using 1149.1 instruction scan operations.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: July 7, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Lee D. Whetsel, Baher S. Haroun, Brian J. Lasher, Anjali Vij
  • Patent number: 9078058
    Abstract: The two-way wireless speaker system of this invention increases sound fidelity by enabling speakers to acknowledge receipt of audio data packets. This provides increased functionality because the audio hub can receive data not only from wired inputs, but also wireless transmission from computer, cell phone, and other sources. Audio hub can use information from speaker to customize/adjust audio signal for each speaker independently, giving better audio quality and synchronization among speakers.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: July 7, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Daniel S. Jochelson
  • Patent number: 9076760
    Abstract: A junction field-effect transistor (JFET) includes a substrate having a first-type semiconductor surface including a topside surface, and a top gate of a second-type formed in the semiconductor surface. A first-type drain and a first-type source are formed on opposing sides of the top gate. A first deep trench isolation region has an inner first trench wall and an outer first trench wall surrounding the top gate, the drain and the source, and extends vertically to a deep trench depth from the topside surface. A second-type sinker formed in semiconductor surface extends laterally outside the outer first trench wall. The sinker extends vertically from the topside surface to a second-type deep portion which is both below the deep trench depth and laterally inside the inner first trench wall to provide a bottom gate.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: July 7, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Binghua Hu, Pinghai Hao, Sameer Pendharkar
  • Patent number: 9077360
    Abstract: An apparatus, comprising: an analog to digital converter including: a clipping detector; and a post-processor, wherein the post processor generates synchronous values of clipped data based on non-clipped values of non-clipped data.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: July 7, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Udayan Dasgupta, Ganesan Thiagarajan, Venugopal Gopinathan
  • Patent number: 9076863
    Abstract: The density of a transistor array is increased by forming one or more deep trench isolation structures in a semiconductor material. The deep trench isolation structures laterally surround the transistors in the array. The deep trench isolation structures limit the lateral diffusion of dopants and the lateral movement of charge carriers.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: July 7, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Takehito Tamura, Binghua Hu, Sameer Pendharkar, Guru Mathur
  • Patent number: 9077442
    Abstract: A method of operating a transmitter (FIGS. 3A and 5A) is disclosed. The method includes receiving a sequence of data bits (DATA), wherein each data bit has a respective sequence number. A first data bit of the sequence is spread (508) with a first spreading code (504) determined by the sequence number (502) of the first data bit. A second data bit of the sequence is spread (508) with an inverse of the first spreading code (506) determined by the sequence number (502) of the second data bit. The first and second data bits are modulated (510) and transmitted (516) to a remote receiver.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: July 7, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Timothy Mark Schmidl, Anand G. Dabak
  • Publication number: 20150188413
    Abstract: A multiple-output integrated power factor correction system includes, for example, a processor that is formed in a substrate and is arranged to monitor each voltage output of two or more output stages of a power supply and in response to generate an individual voltage error signal for each monitored output stage. A combined output voltage error signal is generated in response to each of the individual voltage error signals. The voltage input to the power supply and the total inductor current of the power supply are monitored and used to generate a combined output voltage control signal in response to the monitored input voltage total inductor current as well as the combined output voltage error control signal. Each individual output voltage control signal for each monitored output stage is generated in response to each of the respective generated individual voltage error signals.
    Type: Application
    Filed: January 29, 2014
    Publication date: July 2, 2015
    Applicant: Texas Instruments Incorporated
    Inventors: Shamim Choudhury, Zhenyu Yu, Zhong Ye
  • Publication number: 20150188561
    Abstract: A successive approximation register analog to digital converter (SAR ADC) is disclosed. The SAR ADC receives an input voltage and a plurality of reference voltages. The SAR ADC includes a charge sharing DAC. The charge sharing DAC includes an array of MSB (most significant bit) capacitors and an array of LSB (least significant bit) capacitors. A zero crossing detector is coupled to the charge sharing DAC. The zero crossing detector generates a digital output. A coarse ADC (analog to digital converter) receives the input voltage and generates a coarse output. A predefined offset is added to a residue of the coarse ADC. A successive approximation register (SAR) state machine is coupled to the coarse ADC and the zero crossing detector and, generates a plurality of control signals. The plurality of control signals operates the charge sharing DAC in a sampling mode, an error-correction mode and a conversion mode.
    Type: Application
    Filed: April 17, 2014
    Publication date: July 2, 2015
    Applicant: Texas Instruments Incorporated
    Inventors: Subramanian Jagdish Narayan, Anand Kannan
  • Publication number: 20150188533
    Abstract: A bootstrap circuit for a sampling transistor. A circuit includes a MOS transistor having a source terminal coupled to an input for receiving an input voltage; an output at a drain terminal of the MOS transistor coupled to one plate of a sampling capacitor; a first switch coupling the input voltage to a gate terminal of the MOS transistor responsive to an initial phase control signal; a bootstrap capacitor having a top plate coupled to the gate terminal of the MOS transistor and coupled to the first switch; a second switch coupling a bottom plate of the bootstrap capacitor to a first low voltage supply responsive to the initial phase control signal; a third switch coupling the bottom plate of the bootstrap capacitor to a positive voltage supply greater than the first low voltage supply responsive to a first phase periodic control signal. Additional circuits and systems are disclosed.
    Type: Application
    Filed: November 5, 2014
    Publication date: July 2, 2015
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Rakul Viswanath, Rahul Sharma
  • Patent number: 9070575
    Abstract: Ferroelectric capacitor structures for integrated decoupling capacitors and the like. The ferroelectric capacitor structure includes two or more ferroelectric capacitors connected in series with one another between voltage nodes. The series connection of the ferroelectric capacitors reduces the applied voltage across each, enabling the use of rough ferroelectric dielectric material, such as PZT deposited by MOCVD. Matched construction of the series-connected capacitors, as well as uniform polarity of the applied voltage across each, is beneficial in reducing the maximum voltage across any one of the capacitors, reducing the vulnerability to dielectric breakdown.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: June 30, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Scott Robert Summerfelt, John A. Rodriguez, Huang-Chun Wen, Steven Craig Bartling
  • Patent number: 9071844
    Abstract: The MPEG motion estimation process is improved by the introduction of the motion vector penalty. The motion vector employed to encode a macroblock takes into consideration the number of bits needed to encode the macroblock with the selected motion vector. This consideration includes a sum of the residual error and the cost to encode the candidate motion vector. This provides an optimization of the bit allocation and vector type selection. This optimization results in a significantly improved picture quality.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: June 30, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Akira Osamoto, Toshio Takamizawa
  • Patent number: 9070703
    Abstract: In some developing interconnect technologies, such as chip-to-chip optical interconnect or metal waveguide interconnects, misalignment can be a serious issue. Here, however, a interconnect that uses an on-chip directional antenna (which operates in the sub-millimeter range) to form a radio frequency (RF) interconnect through a dielectric waveguide is provided. This system allows for misalignment while providing the increased communication bandwidth.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: June 30, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Baher S. Haroun, Marco Corsi, Siraj Akhtar, Nirmal C. Warke
  • Patent number: 9070785
    Abstract: An integrated circuit with a thick TiN metal gate with a work function greater than 4.85 eV and with a thin TiN metal gate with a work function less than 4.25 eV. An integrated circuit with a replacement gate PMOS TiN metal gate transistor with a workfunction greater than 4.85 eV and with a replacement gate NMOS TiN metal gate transistor with a workfunction less than 4.25 eV. An integrated circuit with a gate first PMOS TiN metal gate transistor with a workfunction greater than 4.85 eV and with a gate first NMOS TiN metal gate transistor with a workfunction less than 4.25 eV.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: June 30, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Hiroaki Niimi, Brian K. Kirkpatrick
  • Patent number: 9069073
    Abstract: Methods and integrated circuits for performing receiver autonomous integrity monitoring (RAIM) in global navigation satellite system (GNSS) receivers are disclosed. In an embodiment, a first information comprising current position related information is accessed. A second information comprising predicted position related information is accessed based on previously received information. A solution is computed based on the first information and the second information and a presence of outlier information is determined in at least one of the first information and the second information based on the solution.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: June 30, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Sthanunathan Ramakrishnan, Sandeep Rao
  • Patent number: 9070768
    Abstract: A depletion type DMOS transistor comprises a gap in electrode material allowing incorporation of a well dopant species into the underlying semiconductor material. During subsequent dopant diffusion a continuous well region is obtained having an extended lateral extension without having an increased depth. The source dopant species is implanted after masking the gap. Additional channel implantation is performed prior to forming the gate dielectric material.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: June 30, 2015
    Assignees: X-FAB Semiconductor Foundries AG, Texas Instruments Inc
    Inventors: Ralf Lerner, Phil Hower, Gabriel Kittler, Klaus Schottmann
  • Patent number: 9071823
    Abstract: A method and apparatus for predicting reference data transfer scheme for motion estimation. The method includes computing, via the processor, hypothetical rectangle region in reference frame containing all the predicting and reference data for doing motion estimation search around the region, if the macroblock is not the first in a row, utilizing overlap with previously fetched reference data, computing overlap with previously fetched reference data, and transferring needed data, invalidating any predictor, wherein the predictor is not part of the fetched data, and regulating the motion estimation and setting the motion vector to an effective value based on the fetched and computed data.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: June 30, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Soyeb Nagori
  • Publication number: 20150180692
    Abstract: For generating quantized signals, a quantized phase domain related to quantized phases of an input signal is generated. Vectors that the input signal may occupy are calculated based on the quantized phase domain. A first quantized phase of a first component of the input signal is generated per the quantized phase domain, and a second quantized phase of a second component of the input signal is generated per the quantized phase domain.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 25, 2015
    Applicant: Texas Instruments Incorporated
    Inventors: Rahmi Hezar, Lei Ding, Joonhoi Hur