Patents Represented by Attorney Robert D. Marshall, Jr.
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Patent number: 8213622Abstract: This invention is a method for binaural localization using a cascade of resonators and anti-resonators to implement an HRTF (head-related transfer function). The spectrum of the cascade reproduces the magnitude spectrum of a desired HRTF. The proposed method provides a considerably more computationally efficient implementation of HRTF filters with no detectable deterioration of output quality while saving memory when storing a large quantity of HRTFs due to the parameterization of its resonators and anti-resonators. Finally, the method offers additional flexibility since the resonators and anti-resonators can be manipulated individually during the design process, making it possible to interpolate smoothly between HRTFs, reduce spectral coloring or achieve higher accuracy at perceptually relevant frequency regions. These HRTF are useful in stereo enhancement and multi-channel virtual surround simulation.Type: GrantFiled: March 3, 2010Date of Patent: July 3, 2012Assignee: Texas Instruments IncorporatedInventors: Atsuhiro Sakurai, Steven Trautmann
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Patent number: 8213515Abstract: A video encoding method determines the best video encoding mode for a macroblock in the SKIP mode and comparing this cost with other modes. This avoids sub-pixel interpolations for fractional pixels. This models the cost function in a quadratic model and computes the cost for a nearest integer pel and plural adjacent integer pels. This permits determination of the coefficients of the quadratic model. An estimated cost is obtained using the actual fractional pel position in the quadratic model. This can be used for obtaining the cost of a P Skip mode. This can be used for the decision of B direct or B skip modes in B frames.Type: GrantFiled: January 12, 2009Date of Patent: July 3, 2012Assignee: Texas Instruments IncorporatedInventors: Arun Shankar Kudana, Soyeb N. Nagori, Ajit Venkat Rao, Manoj Koul
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Patent number: 8213741Abstract: This invention generates object-focused thumbnails from input images reflecting the mood and intention of the user, based on the original high-resolution picture. The invention includes edge detection, clustering detected edges into regions, ranking the regions and forming the thumbnail from a portion of the input image having a predetermined thumbnail size centered at a center of the highest ranking region. With this invention, the thumbnail accurately captures the focus of the image.Type: GrantFiled: December 19, 2008Date of Patent: July 3, 2012Assignee: Texas Instruments IncorporatedInventors: Prabindh Sundareson, Shanmuga Sundaram Mahendran
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Patent number: 8213511Abstract: This invention is a method of video encoding. The number N macroblocks stored in a temporary buffer depends upon an estimated number of motion vectors. N macroblocks of current and prior frame data is transferred to the temporary buffer. The invention determines for each macroblock whether to be inter frame predicted or intra frame predicted. The inter and intra macroblocks are separately encoded based upon this determination and stored in an output buffer. Output macroblocks are output from the output buffer in raster scan order. This technique permits the process to loop over differing number of macroblocks in differing parts of the encoding process. Entropy encoding complexity from separating inter and intra macroblock encoding is avoided by separating a symbol generation phase from an encoding phase.Type: GrantFiled: April 29, 2008Date of Patent: July 3, 2012Assignee: Texas Instruments IncorporatedInventors: Pramod Kumar Swami, Venugopala Krishna Madumbu, Anurag Mithalal Jain, Jacques Michel Bride, David Gottardo
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Patent number: 8208558Abstract: This invention is method for determining direction mode for an image block in intra prediction of video frames. The method calculates a plurality of energy terms from the spatial frequency domain image block, then determines a coarse classification from these energy terms. For at least some coarse classifications the method searches from among a subset of less than all possible direction modes. The method also searches a most likely direction mode determined from neighbor blocks when available.Type: GrantFiled: June 9, 2008Date of Patent: June 26, 2012Assignee: Texas Instruments IncorporatedInventor: Soyeb N. Nagori
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Patent number: 8204753Abstract: This invention decoded encoded speech using alternative parameters upon detection of a lost packet. Upon detection of a first good packet following packet loss, this invention uses second alternative parameters intermediate between the default parameters and the alternative parameters for a predetermined interval. Thereafter the invention reverts to the default parameters. This minimizes glitches in the decoded speech upon packet loss. This invention is suitable for use in decoding speech data encoded in the CCITT Recommendation G.726 ADPCM based speech coding standard.Type: GrantFiled: August 12, 2008Date of Patent: June 19, 2012Assignee: Texas Instruments IncorporatedInventor: Sanjeev Kumar
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Patent number: 8204470Abstract: This invention is a method of predecoding for joint processing coordinated multi-point transmission. The invention identifies for a particular transmission the cooperating point and the transmit antenna. The invention selects a code by reference to a selected one of a super-cell codebook for each combination of cooperating point and transmit antenna and a multi-cell codebook for each transmit antenna regardless of the cooperating point.Type: GrantFiled: January 6, 2010Date of Patent: June 19, 2012Assignee: Texas Instruments IncorporatedInventors: Eko N. Onggosanusi, Tarik Muharemovic, Anthony Ekpenyong, Zukang Shen
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Patent number: 8205125Abstract: A test controller implemented in an integrated circuit (IC) with partitioned scan chains provides enhanced control in performing scan tests. According to an aspect, a test controller can selectively control scan-in, scan-out and capture phases of scan tests for different scan chains of the IC to be independent. The number of pins required to interface the test controller with an external tester is less than the number of partitions that the test controller can support. According to another aspect, an IC includes a register corresponding to each partition to support transition fault (or LOS) testing. According to another aspect, an IC with partitioned scan chains includes serial to parallel and parallel to serial converters, thereby minimizing the external pins required to support scan tests.Type: GrantFiled: October 23, 2009Date of Patent: June 19, 2012Assignee: Texas Instruments IncorporatedInventors: Alan David Hales, Srujan Kumar Nakidi, Rubin Ajit Parekhji, Srivaths Ravi, Rajesh Kumar Tiwari
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Patent number: 8199666Abstract: In ACK/NAK responses with repetition, the ACK/NAK response from the user equipment to a Physical Downlink Shared CHannel (PDSCH) transmission is repeated in consecutive frames a predetermined number of frames following receipt. This repeat ACK/NAK causes a problem when a PSCCH transmission directed to the same user equipment occurs in consecutive subframes. In a first embodiment, the first ACK/NAK response repeats preempting any ACK/NAK response to the later PDSCH transmission. In a second embodiment, the first ACK/NAK response does not repeat and the ACK/NAK response to the later PDSCH transmission occurs.Type: GrantFiled: February 2, 2010Date of Patent: June 12, 2012Assignee: Texas Instruments IncorporatedInventor: Zukang Shen
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Patent number: 8194188Abstract: An aspect of the present invention reduces memory accesses while forming combined images of a subpicture frame with each of a sequence of image frames. In an embodiment, line information indicating the specific lines (e.g., rows) of the subpicture frame having display information is first generated. The line information is then used to retrieve only those lines of the subpicture frame that have display information while forming combined frames. According to another aspect, the portions of the combined images having sharp edges due to the inclusion of the subpicture frame are identified based on the line information, and such portions are then filtered. The sequence of combined frames may be displayed on a video output device.Type: GrantFiled: April 2, 2009Date of Patent: June 5, 2012Assignee: Texas Instruments IncorporatedInventor: Tarakeshwar Chikkanna Nagajjanavar
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Patent number: 8195972Abstract: Synchronous circuitry for processing digital data in which the data are filtered to compensate for expected jitter in time-average frequency clock signals. Time-average frequency synthesis circuitry generates internal clock signals of a desired frequency, for example as based on a recovered clock signal from an input data stream, in a manner in which not all periods of the clock signal are of uniform duration. A jitter precorrection filter is inserted into the data path to apply a variable delay to pre-correct for distortion caused by jitter in the clock cycle. In embodiments of the invention using a flying-adder architecture to generate the clock signal, coefficients of the digital filer realizing the jitter precorrection filter are calculated according to the currently-selected oscillator phase and according to a fractional portion of a digital frequency control word.Type: GrantFiled: December 1, 2009Date of Patent: June 5, 2012Assignee: Texas Instruments IncorporatedInventors: Karl Renner, Walter Heinrich Demmer, Liming Xiu
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Patent number: 8195034Abstract: A video processing method for detecting significant events from a video program includes computing short-time sub-band energies in the audio for plural audio sub-bands, detecting scene boundaries where a weighted sum of these short-time sub-band energies are less energy threshold for longer than an time interval, segmenting the video program into a plurality of scenes by the boundaries, removing scenes shorter than a segment time interval and classifying and ranking the remaining scenes by audio. A second segmenting and removal is based upon a second energy threshold and a second time interval or when energy in a lowest frequency sub-band is greater than a predetermined bass energy threshold. The first segment time interval may be recomputed based upon the distribution of length of the remaining scenes.Type: GrantFiled: April 13, 2009Date of Patent: June 5, 2012Assignee: Texas Instruments IncorporatedInventors: Masato Shima, Hiroshi Takaoka
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Patent number: 8184154Abstract: A surveillance method periodically detects an image of the area, identifies and tracks each moving object in a succession of the detected images, detects radio frequency emissions from the area and correlates an identified object with a detected radio frequency emission. The method detects events in the tracking of the moving object. The method stores corresponding data optionally including image data in non-volatile memory upon detection of a combination of an event and a corresponding radio frequency emission. The method triggers an alarm such as an audible alarm, a visual alarm, an email, a short text message or a telephone call detection of a combination of an event and a corresponding radio frequency emission.Type: GrantFiled: February 27, 2007Date of Patent: May 22, 2012Assignee: Texas Instruments IncorporatedInventors: Leonardo W. Estevez, Keith G. Gutierrez
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Patent number: 8185774Abstract: The present invention is an electronic device comprising a counter driven by an input clock signal for counting clock cycles and providing most significant bits of a count. A clock signal generating stage provides a first set of phase shifted clock signals having m different phases. The electronic device determines n least significant bits of the count of the counter from the logic states of the first set of m phase shifted clock signals.Type: GrantFiled: May 14, 2009Date of Patent: May 22, 2012Assignee: Texas Instruments IncorporatedInventors: Horst Diewald, Joerg Schreiner
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Patent number: 8185672Abstract: A system and method for transmitting asynchronous data bursts over a constant data rate channel that transmits a continuous stream of data with virtually no load on the CPU(s) of the receiving processing node is disclosed. The data channel has a defined frame structure with one or more data structures, wherein each data structure comprises a plurality of data locations. A receiver selects data from a fixed data location in each data structure as a data descriptor for each respective data structure. The receiver configures a direct memory access (DMA) function using each data descriptor.Type: GrantFiled: January 27, 2011Date of Patent: May 22, 2012Assignee: Texas Instruments IncorporatedInventors: Philippe Malleth, Sebastien Tomas, Mario Giani, Francois Badaud
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Patent number: 8184579Abstract: ACK/NAK repetition may be necessary to provide sufficient coverage for cell edge UEs. For a coverage limited UE, a NodeB may inform the UE that ACK/NAK repetition is needed. Such information can be explicitly signaled to the UE via DL control channels or conveyed through higher layer signaling. Further, a specific resource for ACK/NAK repetition and the number of repeated transmissions of ACK/NAK are further signaled to the UE.Type: GrantFiled: February 11, 2009Date of Patent: May 22, 2012Assignee: Texas Instruments IncorporatedInventors: Zukang Shen, Tarik Muharemovic, Pierre Bertrand
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Patent number: 8169969Abstract: This invention employs an inherent tradeoff in a radio bearer dependent data handling method for intra-E-UTRA handoffs. For user equipment using real time data, the source node forwards to the target node not yet acknowledged real time service data units and disconnects. This makes the handoff latency short at the expense of data traffic between nodes. For user equipment not needing real time data, the source node continues to receive user equipment acknowledgements during a time out period and only forwards service data units acknowledged during the time out period. This reduces X2 interface traffic between the source and target nodes but extends the handoff latency.Type: GrantFiled: June 18, 2008Date of Patent: May 1, 2012Assignee: Texas Instruments IncorporatedInventors: Ramanuja Vedantham, Sandeep Bhadra, Shantanu Kangude, Seung Baek
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Patent number: 8171186Abstract: A method for performing write transactions in an interconnect fabric is described. A burst write transaction is received by a bridge coupled to a master. The burst transaction is initiated by a command phase that includes a wait state attribute. The bridge is also coupled to a second bus that is coupled to a slave destination device or to another bridge. The bridge may initiate a cut-through transaction to the second bus when the wait state attribute indicates a master inserted wait state will not be incurred during the burst transaction.Type: GrantFiled: January 31, 2011Date of Patent: May 1, 2012Assignee: Texas Instruments IncorporatedInventors: Brian Jason Karguth, Denis Roland Beaudoin, Akila Subramaniam
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Patent number: 8171185Abstract: This invention provides an electronic device that can suppress the undesired influence of signals flowing on the bus as interference on devices connected to the bus. The electronic device has two ports connected to the bus with corresponding physical layer processing means. The physical layer processing means may optionally be connected together permitting separate connection to separate busses. Thus a bus reset on first bus will not interfere with processing on the second bus.Type: GrantFiled: November 30, 2009Date of Patent: May 1, 2012Assignee: Texas Instruments IncorporatedInventor: Toru Nakamura
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Patent number: 8169950Abstract: A transmission of information from a secondary to a primary node occurs in a plurality of N logical time durations. The transmission from the secondary to primary node in a wireless network is obtained using a first and a second sequence. Embodiments of the present invention mitigate interference by restricting the choice of the first sequence. Thus, in an embodiment of the invention, the first sequence is selected from a set of M sequences wherein M is strictly less than N. In order to accommodate high-velocity users, the restricted set contains a pair of sequences whose element-wise product is mirror symmetric. In other embodiments of the invention, the choices of the first sequence and second sequence in a time-frequency resource is arranged such that interference is mitigated. A transmission component for K-th logical time duration is obtained from the entire second sequence and K-th element of the first sequence.Type: GrantFiled: June 10, 2008Date of Patent: May 1, 2012Assignee: Texas Instruments IncorporatedInventors: Zukang Shen, Tarik Muharemovic, Pierre Bertrand