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Keithley Instruments Inc patents

Recent patent applications related to Keithley Instruments Inc. Keithley Instruments Inc is listed as an Agent/Assignee. Note: Keithley Instruments Inc may have other listings under different names/spellings. We're not affiliated with Keithley Instruments Inc, we're just tracking patents.

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Determination and rendering of scan groups

The determination and rendering of scan groups for channels configured to acquire data from test and measurement devices in a data acquisition system is disclosed. Based on the particular scan configuration for the data acquisition system, scan groups may be determined for channels in a scan list based on the channel settings, such as measurement type, for example. ... Keithley Instruments Inc

Low frequency impedance measurement with source measure units

A method for measuring the impedance of a dut having a capacitance of less than 1 pf includes applying a voltage or current signal to the dut, the voltage or current signal including an ac component having a non-zero frequency of less than 1 khz; monitoring a current or voltage signal, respectively, through the dut in response to the voltage or current signal; digitizing the voltage signal and the current signal synchronously; and calculating the impedance from the digitized voltage and current signals.. . ... Keithley Instruments Inc

Nested ammeter

A nested ammeter for measuring the electrical current flowing through a device under test (dut) can include an input configured to receive an input signal having a frequency within a frequency band and representing the electrical current flowing through the dut. The nested ammeter can also include an output configured to generate an output voltage representing the electrical current flowing through the dut. ... Keithley Instruments Inc

Rejection of mechanical vibration induced noise in electrical measurements

An electronic test measurement system can include a device under test (dut) and an electronic test instrument that includes a signal input configured to receive an electrical signal from the dut, a cooling mechanism, and a processor. The processor can be configured to determine a frequency at which the cooling mechanism should operate, cause the cooling mechanism to operate at the determined frequency, select a filter based on the determined frequency, and apply the filter to the electrical signal to reduce interference with the electrical signal resulting from mechanical vibrations of the cooling mechanism.. ... Keithley Instruments Inc

Visually identifiable features for applications installed on electronic devices

An electronic device for running an application can include a display to visually present a user interface corresponding to the application. The electronic device can also include a processor to determine whether the application is an originally-installed application and cause the display to include a visually identifiable feature in the user interface indicating that the application is not an originally-installed application responsive to a determination that the application is not an originally-installed application.. ... Keithley Instruments Inc

Soft current switching power supply

Embodiments of the present invention provide improved techniques and devices for reducing transformer commutation distortion caused by large load currents. Traditional power supplies which have two or more phases typically commutate a transformer during the end of each phase. ... Keithley Instruments Inc

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This listing is an abstract for educational and research purposes is only meant as a recent sample of applications filed, not a comprehensive history. is not affiliated or associated with Keithley Instruments Inc in any way and there may be associated servicemarks. This data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Keithley Instruments Inc with additional patents listed. Browse our Agent directory for other possible listings. Page by