公开(公告)号：US09983852B2

公开(公告)日：2018-05-29

申请号：US15232171

申请日：2016-08-09

Applicant: NATIONAL INSTRUMENTS CORPORATION

Inventor： Kaushik Ravindran ,  Jacob Kornerup ,  Rhishikesh Limaye ,  Guang Yang ,  Guoqiang Wang ,  Jeffrey N. Correll ,  Arkadeb Ghosal ,  Sadia B. Malik ,  Charles E. Crain, II ,  Michael J. Trimborn

IPC: G06F17/50 ,  G06F9/44 ,  G06F3/00 ,  G06F17/30 ,  G06F3/048

CPC classification number: G06F8/20 ,  G06F3/048 ,  G06F8/34 ,  G06F9/44 ,  G06F9/4494 ,  G06F17/30294 ,  G06F17/30572 ,  G06F17/5004 ,  G06F17/5045 ,  G06F2217/02 ,  G06F2217/04 ,  G06F2217/06 ,  G06F2217/12 ,  G06F2217/14 ,  G06F2217/16 ,  G06F2217/74

Abstract: Techniques for specifying and implementing programs. A graphical program is created in a graphical specification and constraint language that allows specification of a model of computation and explicit declaration of constraints in response to user input. The graphical program includes a specified model of computation, a plurality of interconnected functional blocks that visually indicate functionality of the graphical program in accordance with the specified model of computation, and specifications or constraints for the graphical program or at least one of the functional blocks in the graphical program. The specified model of computation and specifications or constraints are useable to analyze the graphical program or generate a program or simulation.

公开(公告)号：US09977563B2

公开(公告)日：2018-05-22

申请号：US14632911

申请日：2015-02-26

Applicant: NATIONAL INSTRUMENTS CORPORATION

Inventor： Jeffrey L. Kodosky

IPC: G06F3/048 ,  G06F3/0481 ,  G06F9/44 ,  G06F3/0484

CPC classification number: G06F3/0481 ,  G06F3/04817 ,  G06F3/04842 ,  G06F8/33 ,  G06F8/34 ,  G06F8/35

Abstract: System and method for editing a graphical diagram. A graphical diagram, such as a graphical program, is displayed on a display device. User input may be received editing the graphical diagram, thereby generating an edited graphical diagram. Placement of one or more elements in the graphical diagram may be adjusted in response to the editing based on determined forces applied to the one or more elements in the edited graphical diagram based on the said editing, resulting in an adjusted edited graphical diagram. The adjusted edited graphical diagram may be displayed on the display device, which may include displaying an animation illustrating the movement of the elements to an equilibrium state in which the forces balance and movement ceases. The editing, adjusting, and displaying may be performed sequentially and/or concurrently, as desired.

公开(公告)号：US09935637B2

公开(公告)日：2018-04-03

申请号：US14619888

申请日：2015-02-11

Applicant: NATIONAL INSTRUMENTS CORPORATION

Inventor： Chen Chang ,  Kevin B. Camera ,  Alexander Williams ,  Brian Jenkins ,  Ellery Cochell ,  Robert W. Brodersen ,  John C. Wawrzynek

IPC: G06F7/38 ,  H03K19/173 ,  H03K19/177 ,  G06F17/50

CPC classification number: H03K19/17728 ,  G06F17/5054 ,  H03K19/17756

Abstract: A design environment for FPGA applications enables configuration of an FPGA platform to include a user design and one or more interface units, which the user design can use to access one or more external modules/devices without needing any particular knowledge of the structure and operation of such modules/devices. The interface unit corresponding to an external device/module, under the control of an operating environment, can establish a communication between the user design and the external module/device. An external processing module can use an interface unit to monitor and/or control a user design.

公开(公告)号：US20180054517A1

公开(公告)日：2018-02-22

申请号：US15681772

申请日：2017-08-21

Applicant: NATIONAL INSTRUMENTS CORPORATION

Inventor： TIM HENTSCHEL

IPC: H04M3/42 ,  H04B7/02 ,  H04W8/18

CPC classification number: H04M3/42161 ,  H04B5/0031 ,  H04B5/0037 ,  H04B7/02 ,  H04L63/0853 ,  H04W4/50 ,  H04W4/60 ,  H04W4/70 ,  H04W4/80 ,  H04W8/186 ,  H04W8/205 ,  H04W8/245 ,  H04W12/04 ,  H04W12/06 ,  H04W24/06 ,  H04W68/005 ,  H04W88/06 ,  H04W88/18

Abstract: An apparatus includes a cellular frequency radio, either coupled to or configured to be coupled to an antenna disposed within a radio frequency (RF) shielded chamber. A cellular device includes an embedded subscriber identification module (eSIM). While the device is in the shielded chamber, a processor controls the radio to use the antenna to transmit a subscriber identification module (SIM) profile to the device and subsequently communicate with the device to test operation of the device while the device uses the SIM profile loaded into the eSIM. A cellular device includes an eSIM without a SIM profile, a cellular frequency radio, and a processor that controls the radio to wirelessly receive a SIM profile while the eSIM is still without a SIM profile, loads the received SIM profile into the eSIM, and controls the radio to wirelessly communicate with a cellular network using the SIM profile loaded into the eSIM.

公开(公告)号：US09898267B2

公开(公告)日：2018-02-20

申请号：US15277660

申请日：2016-09-27

Applicant: NATIONAL INSTRUMENTS CORPORATION

Inventor： Hojin Kee ,  Haoran Yi ,  Tai A. Ly ,  Newton G. Petersen ,  James M. Lewis ,  Dustyn K. Blasig ,  Adam T. Arnesen ,  Taylor L. Riche

IPC: G06F9/44 ,  G06F9/45

CPC classification number: G06F8/443 ,  G06F8/20 ,  G06F8/34

Abstract: System and method for performing correlation analysis. A program that includes multiple program structures and one or more data objects is stored. Each data object is shared by at least two of the program structures. For each program structure, decomposition effects on each of the data objects shared by the program structure resulting from each of a respective one or more optimizing transforms applied to the program structure are analyzed. One or more groups of correlated structures are determined based on the analyzing. Each group includes two or more program structures that share at least one data object, and at least one optimizing transform that is compatible with respect to the two or more program structures and the shared data object. For at least one group, the at least one optimizing transform is usable to transform the two or more program structures to meet a specified optimization objective.

公开(公告)号：US09755289B2

公开(公告)日：2017-09-05

申请号：US14739474

申请日：2015-06-15

Applicant: NATIONAL INSTRUMENTS CORPORATION

Inventor： Ron J. Barnett ,  Gregory S. Gonzales

IPC: H01P5/08 ,  H01P3/08 ,  H03H7/38 ,  H01P3/06

CPC classification number: H01P5/085

Abstract: Right angle transition to circuit. A system includes a conductive plate, coaxial transmission line, a circuit, parallel to the conductive plate, and a right angle transition from the coaxial transmission line to the circuit. The transmission line includes a center pin protruding through a hole in the plate, an outer conductor formed by a conductive surface of the hole, and air dielectric between. The circuit includes a top conducting layer (TCL), ground plane with cutout, and an insulating substrate between the TCL and ground plane that abuts the pin. The transition includes the pin, a conductive element connecting the center pin to the TCL, the outer conductor, the air dielectric, the abutment of the substrate against the pin, and the cutout. The abutment and cutout minimize manufacturing variations regarding distance between the pin and the ground plane. The transition tunes out inductance introduced by bonding the pin to the TCL.

公开(公告)号：US20170234317A1

公开(公告)日：2017-08-17

申请号：US15045723

申请日：2016-02-17

Applicant: NATIONAL INSTRUMENTS CORPORATION

Inventor： Chin-Hong CHEAH ,  Chuen-Ming Tan

IPC: F04D25/06 ,  F04D29/66 ,  F04D29/58

CPC classification number: F04D25/06 ,  F04D27/004 ,  F04D29/584 ,  F04D29/661

Abstract: A fan noise suppression circuit may be coupled between a power source and a power input to at least one fan. The fan noise suppression circuit may include an adjustable current source coupled to the power source. The adjustable current source may provide a voltage output and a current output based on a power output of the power source. The fan noise suppression circuit may include a feedback controller coupled to an output of the adjustable current source. The feedback controller may be configured to compare the voltage output to a reference voltage and provide an error value to the adjustable current source, wherein the adjustable current source may adjust the current output based on the error value.

公开(公告)号：US20170146575A1

公开(公告)日：2017-05-25

申请号：US15359462

申请日：2016-11-22

Applicant: NATIONAL INSTRUMENTS CORPORATION

Inventor： Pablo E. Limon-Garcia-Viesca ,  Christopher G. Regier

IPC: G01R19/32 ,  G01R19/00 ,  G01R15/14

CPC classification number: G01R19/32 ,  G01R15/146 ,  G01R19/0092

Abstract: A source-measure unit (SMU) may be implemented with digital control loops and circuitry to digitally compensate for the impact of input bias current on current measurements. One or more buffers having well-defined characteristics with respect to certain parameters which may affect the current measurements may be used in the output signal path of the SMU where a shunt voltage developed across a current sense element is measured. For example, the buffers may conduct/develop respective input bias currents that change perceptibly and predictably with temperature. By measuring the temperature and adjusting a control voltage—which is used to develop the shunt voltage—according to the temperature measurements, the impact of the input bias current[s] on the current measurement[s] may be reduced to negligible levels and/or may be eliminated. The control voltage may be adjusted by adjusting a voltage feedback value representative of the measured shunt voltage, and/or by adjusting a current setpoint used for generating the control voltage.

公开(公告)号：US09654188B2

公开(公告)日：2017-05-16

申请号：US14871997

申请日：2015-09-30

Applicant: NATIONAL INSTRUMENTS CORPORATION

Inventor： Karl F. Nieman

IPC: H04B7/04 ,  H04B7/0413 ,  H04L25/02

CPC classification number: H04B7/0413 ,  H04B7/0837 ,  H04L25/0202

Abstract: Techniques are disclosed relating to massive MIMO communications. In some embodiments, a base station is configured to dynamically adjust the number of processing elements used for MIMO signal estimation (e.g., the number of MIMO RX chains used for parallel processing). In some embodiments, the number of processing elements may be based on the number of antennas currently being used, the number of spatial streams, interconnect throughput thresholds, sampling rate, etc. In some embodiments, the base station includes configurable MIMO cores configured to dynamically switch between MIMO signal estimation techniques, e.g., on a per-symbol basis. In some embodiments, the base station includes configurable linear decoders configured to separately multiply input matrices and combine or refrain from combining the results based on the number of antennas and/or processing elements currently in use.

公开(公告)号：US09626415B2

公开(公告)日：2017-04-18

申请号：US14720558

申请日：2015-05-22

Applicant: NATIONAL INSTRUMENTS CORPORATION

Inventor： Stefan R. Romainczyk ,  Michael C. Popa ,  Victor M. Hall ,  Phi Hai Huynh ,  Klaus Stefan Zölsch

IPC: G06F7/00 ,  G06F17/30

CPC classification number: G06F17/30554 ,  G06F17/30864

Abstract: System and method for rendering data with specified constraints. A request for data from a data set may be received. The data set may include time-stamped historical data, including multiple reduced data sets, each having a respective resolution. The request may specify a time frame. A first reduced data set of the reduced data sets may be determined based on the specified time frame. First data from the first reduced data set corresponding to the specified time frame may be retrieved, and are usable for display on a display device. The data set may be generated from received raw data, where the raw data includes time-stamped historical data at a first resolution. The raw data may be reduced via multiple stages, thereby generating the reduced data sets at their respective resolutions. The reduced data are generated and represented in a way that is visually pleasing and technically accurate.