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| Number | Title | Issue Date |
| D659641 | Keyed receptacle for accessory-host interface | 05/15/2012 |
| 8155165 | Method of characterizing parameters and removing spectral components of a spread spectrum clock in a communications signal Parameters of a spread spectrum clock signal in a communication signal are characterized by acquiring voltage samples of the communication signal at a nominal time location of an edge of the communication signal. The voltage samples are converted to time samples and... | 04/10/2012 |
| 8154431 | Data generator providing large amounts of data of arbitrary word length A waveform memory 66 stores data streams with each data stream having M-bit parallel data. A sequence memory 60 stores sequence information and data discard information on the amount of data to discard from the last data in each data stream. A sequence... | 04/10/2012 |
| D649971 | Adapter used with an accessory-host interface | 12/06/2011 |
| D649970 | Adapter used with an accessory-host interface | 12/06/2011 |
| 8067718 | Method and apparatus for probing A probe comprises a small “consumable” probe substrate permanently mounted to a circuit-under-test. The probe substrate includes a high-fidelity signal pathway, which is inserted into a conductor of the circuit-under-test, and a high-bandwidth sensing circuit wh... | 11/29/2011 |
| 8064506 | Signal generator and user interface for setting test sequences and parameters of a test signal A signal generator generates a WiMedia ultra wideband test signal with a user interface for setting test sequences and parameters of the test signal. Parameters are set for Presentation Protocol Data Units associated with Packet Groups of the test signal. A signal p... | 11/22/2011 |
| D643841 | Adapter for accessory-host interface | 08/23/2011 |
| 7941686 | Phase controllable multichannel signal generator having interleaved digital to analog converters A signal generator can control phase relationship between output signals of the channels without stopping clocks provided to the channels to enable the circuit operation fast. First and second channels 20 and 22 have signal generation blocks 10 ... | 05/10/2011 |
| 7928981 | Signal generator display interface for instinctive operation of editing waveform parameters Instinctive operation of editing parameters of waveform is provided. Tabs 38, 40 and 42 are displayed on a display screen 14 to show existence of parameter edit screen layers of different combinations of characters, waveforms and channels. If on... | 04/19/2011 |
| 7892021 | Lumped resistance electrical cable A lumped resistance electrical cable has a multiple twisted pair ribbon cable having first and second conductive lines and twisted and untwisted portions. In the untwisted portions, one of the conductive lines on each of the twisted pairs is formed with an electrica... | 02/22/2011 |
| 7890679 | Data generator for generating data of arbitrary length A data generator provides faster data than before. A parallel data generator 18 provides first data having four or five effective data width according to a divided clock DCLK. A bit width adjuster 20 having a FIFO memory receives the first parallel dat... | 02/15/2011 |
| 7760022 | Amplifier circuit Power consumption of current sources in an amplifier circuit is reduced even during amplifier operation while keeping linearity of an output signal. The amplifier circuit is suitable for use in a signal generator that provides an output signal previously set by a us... | 07/20/2010 |
| 7746058 | Sequential equivalent—time sampling with an asynchronous reference clock A sequential equivalent-time sampling oscilloscope simultaneously acquires samples of a signal-under-test and a reference clock that is asynchronous with the signal-under-test. The oscilloscope converts the samples of the reference clock into timestamps and uses the... | 06/29/2010 |
| 7592822 | Probing adapter for a signal acquisition probe having pivoting, compliant, variable spacing probing tips A probing adapter has a support member receiving a probing tip assembly having probing arms. The probing tip assembly is mounted to the support member via a rotational joint having elastomeric member disposed in the probing arms with each of the probing arms having ... | 09/22/2009 |
| 7586318 | Differential measurement probe having a ground clip system for the probing tips A differential measurement probe has a ground clip system for electrically coupling outer shielding conductors of differential probing tips together. In one embodiment, the probing tips independently move vertically relative to each other with the ground clip system... | 09/08/2009 |
| 7583460 | Edge controlled fast data pattern generator Fast data patterns with desired edge positions are provided. A pattern generator (PG) circuit 10 stores and provides data patterns and respective position control data. A delay circuit 16 delays a clock CLK to produce a position control clock according... | 09/01/2009 |
| 7562246 | Phase controllable multichannel signal generator A signal generator can control phase relationship between output signals of the channels without stopping clocks provided to the channels to enable the circuit operation fast. First and second channels 20 and 22 have signal generation blocks 10 ... | 07/14/2009 |
| 7560944 | Differential measurement probe having a ground clip system for the probing tips A differential measurement probe has a ground clip system for electrically coupling outer shielding conductors of differential probing tips together. In one embodiment, the probing tips independently move vertically relative to each other with the ground clip system... | 07/14/2009 |
| 7550962 | Wide bandwidth attenuator input circuit for a measurement probe A wide bandwidth attenuator input circuit for a measurement probe has a Z0 attenuator circuit coupled in series with a compensated RC attenuator circuit. The series attenuator elements of the Z0 and the compensated RC attenuator circuits are co... | 06/23/2009 |
| 7532492 | Host controlled voltage input system for an accessory device An accessory device voltage management system includes an accessory device selectively coupled to a host. The host provides a bulk power supply and a low power supply voltage to the accessory device. The host receives accessory device parameters from the device and ... | 05/12/2009 |
| 7526972 | Probe holder for various thickness substrates A probe holder for a signal acquisition probe has a cradle receiving the signal acquisition probe and a pedestal adapted for receiving substrates of various thicknesses. The pedestal has a base member and an upright member with the upright member coupled to the crad... | 05/05/2009 |
| 7522661 | Method of producing a two-dimensional probability density function (PDF) eye diagram and Bit Error Rate eye arrays A method of producing of a two-dimensional probability density function eye diagram and Bit Error Rate eye arrays generates a two-dimensional PDF array of a correlated waveform record of a data pattern under test which is convolved with a two-dimensional probability... | 04/21/2009 |
| 7521634 | Multi-Channel signal acquisition probe A multi-channel signal acquisition probe has a ribbon cable with ganged coaxial signal cables. The coaxial signal cables are separated into individual cables at one end of the ribbon cable. A junction box is mounted the ribbon cable with the individual cables extend... | 04/21/2009 |
| 7463015 | Time shifting signal acquisition probe system A time shifting signal acquisition probe system has a signal acquisition probe having a memory containing a time delay constant representative of the propagation time delay of an electrical signal passing through the signal acquisition probe. A measurement test inst... | 12/09/2008 |
| 7460983 | Signal analysis system and calibration method A method and apparatus adapted to calibrate a signal path of a signal analysis system such that loading effects of the system are substantially removed from measurements of a device under test. A signal under test from the device under test is coupled to a test prob... | 12/02/2008 |
| 7436725 | Data generator having stable duration from trigger arrival to data output start A data generator has stable duration from trigger arrival to substantial data output start. A memory provides parallel data according to a divided clock. An address counter provides the same address to the memory until a trigger signal arrives and starts increasing ... | 10/14/2008 |
| 7436191 | Differential measurement probe having a ground clip system for the probing tips A differential measurement probe has a ground clip system for electrically coupling outer shielding conductors of differential probing tips together. In one embodiment, the probing tips independently move vertically relative to each other with the ground clip system... | 10/14/2008 |
| 7414411 | Signal analysis system and calibration method for multiple signal probes A method and apparatus adapted to calibrate signal path of a signal analysis system such that loading effects of additional probes are substantially removed from the measurement. A signal under test from a device under test is coupled to a test probe and used with s... | 08/19/2008 |
| 7408363 | Signal analysis system and calibration method for processing acquires signal samples with an arbitrary load A method and apparatus adapted to calibrate a signal path of a signal analysis system such that digital samples acquired by the system are processed for representing an arbitrary impedance loading of the device under test. The method and apparatus calibrates the sig... | 08/05/2008 |
| 7405575 | Signal analysis system and calibration method for measuring the impedance of a device under test A method and apparatus adapted to calibrate a signal path of a signal analysis system such that digital samples of a signal under test acquired by the system are processed for representing the impedance of a device under test. The method and apparatus calibrates the... | 07/29/2008 |
| 7402991 | Wide bandwidth attenuator input circuit for a measurement probe A wide bandwidth attenuator input circuit for a measurement probe has a Z0 attenuator circuit coupled in series with a compensated RC attenuator circuit. The series attenuator elements of the Z0 and the compensated RC attenuator circuits are co... | 07/22/2008 |
| 7362112 | Signal acquisition probe having a retractable double cushioned probing tip assembly A signal acquisition probe has a double cushioned spring loaded probing tip assembly disposed in a housing. A first compressive element produces a first pre-loaded compressive force and an increasing compressive force on the probing tip assembly and a second compres... | 04/22/2008 |
| D567124 | Front panel for measurement instruments | 04/22/2008 |
| 7358717 | Input by-pass circuit for a current probe An input by-pass circuit for a current probe has first and second switches coupled between current probe inputs and current sensing circuit inputs. A switch control is coupled to the switching circuit for selectively coupling and decoupling the current probe inputs ... | 04/15/2008 |
| D566592 | Front panel for measurement instruments | 04/15/2008 |
| D566591 | Front panel for measurement instruments | 04/15/2008 |
| D566047 | Plug for accessory-host interface | 04/08/2008 |
| 7355776 | Acoustic damping material for electro-optic materials An acoustic damping material for electro-optic material has an adhesive material combined with a ceramic crystalline material such that the acoustic impedance of the combined adhesive material and the ceramic crystalline material is substantially the same as the aco... | 04/08/2008 |
| D566046 | Receptacle for accessory-host interface | 04/08/2008 |
