Patents by Inventor Nada Vukovic-Radic
Nada Vukovic-Radic has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9423449Abstract: This disclosure provides systems, methods and apparatus for a display apparatus including dummy display elements that can be switched between being coupled to a test bus and a drive bus. When connected to the drive bus, the circuit components, including thin-film transistors, of the dummy display element experience exposure to typical operating signals. When connected to the test bus, the display apparatus can test the operating parameters of the dummy display element circuit components.Type: GrantFiled: December 30, 2014Date of Patent: August 23, 2016Assignee: Pixtronix, Inc.Inventors: Alan Gerald Lewis, Mark Milenko Todorovich, Alain Blaing Nadiguebe, Nada Vukovic-Radic, Stephen Robert Lewis
-
Publication number: 20160187415Abstract: This disclosure provides systems, methods and apparatus for a display apparatus including dummy display elements that can be switched between being coupled to a test bus and a drive bus. When connected to the drive bus, the circuit components, including thin-film transistors, of the dummy display element experience exposure to typical operating signals. When connected to the test bus, the display apparatus can test the operating parameters of the dummy display element circuit components.Type: ApplicationFiled: December 30, 2014Publication date: June 30, 2016Inventors: Alan Gerald Lewis, Mark Milenko Todorovich, Alain Blaing Nadiguebe, Nada Vukovic-Radic, Stephen Robert Lewis
-
Patent number: 9322869Abstract: This disclosure provides systems, methods and apparatus for a display apparatus including dummy display elements that can be switched between being coupled to a test bus and a drive bus. When connected to the drive bus, the circuit components, including thin-film transistors, of the dummy display element experience exposure to typical operating loads. When connected to the test bus, the display apparatus can test the operating parameters of the dummy display element circuit components.Type: GrantFiled: June 4, 2014Date of Patent: April 26, 2016Assignee: Pixtronix, Inc.Inventors: Alan Gerald Lewis, Mark Milenko Todorovich, Alain Blaing Nadiguebe, Nada Vukovic-Radic, Stephen Robert Lewis
-
Patent number: 9224324Abstract: This disclosure provides systems, methods, and apparatus for providing a cascode driver circuit for providing positive and negative polarities of two or more voltages at an output node. The voltages provided by the cascode driver circuit can be used to provide voltages to various interconnects and terminals of the display apparatus. The cascode driver circuit includes a first circuit for providing a positive polarity of two or more voltages to an output node via a first set of cascode transistors and a second circuit for providing negative polarities of the two or more voltages via a second set of cascode transistors. The driver circuit includes body-effect mitigation circuitry for reducing the impact of body-effect on the performance of the driver circuit. The driver circuit also includes circuitry for reducing substrate leakage current.Type: GrantFiled: February 4, 2014Date of Patent: December 29, 2015Assignee: Pixtronix, Inc.Inventors: Alain Blaing Nadiguebe, Nada Vukovic-Radic, Didier Henri Farenc
-
Patent number: 9135843Abstract: This disclosure provides systems, methods and apparatus for driving a display array with a waveform having a plurality of voltage levels, wherein a first subset of the plurality of voltages is different from a second subset of the plurality of voltages by a defined amount. In one aspect, a display driver circuit comprises a power supply configured to generate the first subset of said plurality of voltages, and a charge pump having the first subset of the plurality of voltages as inputs and the second subset of the plurality of voltages as outputs. The charge pump may not include a switch between each output voltage and a corresponding capacitor.Type: GrantFiled: November 15, 2012Date of Patent: September 15, 2015Assignee: QUALCOMM MEMS Technologies, Inc.Inventors: Didier H. Farenc, Nada Vukovic-Radic
-
Publication number: 20150192634Abstract: This disclosure provides systems, methods and apparatus for a display apparatus including dummy display elements that can be switched between being coupled to a test bus and a drive bus. When connected to the drive bus, the circuit components, including thin-film transistors, of the dummy display element experience exposure to typical operating loads. When connected to the test bus, the display apparatus can test the operating parameters of the dummy display element circuit components.Type: ApplicationFiled: June 4, 2014Publication date: July 9, 2015Applicant: Pixtronix, Inc.Inventors: Alan Gerald Lewis, Mark Milenko Todorovich, Alain Blaing Nadiguebe, Nada Vukovic-Radic, Stephen Robert Lewis
-
Publication number: 20150194089Abstract: This disclosure provides systems, methods, and apparatus for providing a cascode driver circuit for providing positive and negative polarities of two or more voltages at an output node. The voltages provided by the cascode driver circuit can be used to provide voltages to various interconnects and terminals of the display apparatus. The cascode driver circuit includes a first circuit for providing a positive polarity of two or more voltages to an output node via a first set of cascode transistors and a second circuit for providing negative polarities of the two or more voltages via a second set of cascode transistors. The driver circuit includes body-effect mitigation circuitry for reducing the impact of body-effect on the performance of the driver circuit. The driver circuit also includes circuitry for reducing substrate leakage current.Type: ApplicationFiled: February 4, 2014Publication date: July 9, 2015Applicant: Pixtronix, Inc.Inventors: Alain Blaing NADIGUEBE, Nada VUKOVIC-RADIC, Didier Henri FARENC
-
Publication number: 20140267207Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for verifying actuation of an IMOD display element. In one aspect, a display apparatus is provided. The display apparatus includes an interferometric modulator (IMOD) display element coupled to a row electrode and coupled to a column electrode. The display apparatus further includes a driver circuit configured to apply voltage waveforms corresponding to image data to the row and column electrodes coupled to the IMOD display element to control actuation of the IMOD display element. The display apparatus further includes a detection circuit configured to detect actuation of the IMOD display element using the voltage waveforms.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: QUALCOMM MEMS Technologies, Inc.Inventors: Didier H. Farenc, Gol Mulbe Nadiguebe, Nada Vukovic-Radic
-
Publication number: 20130321370Abstract: This disclosure provides systems, methods and apparatus for driving a display array with a waveform having a plurality of voltage levels, wherein a first subset of the plurality of voltages is different from a second subset of the plurality of voltages by a defined amount. In one aspect, a display driver circuit comprises a power supply configured to generate the first subset of said plurality of voltages, and a charge pump having the first subset of the plurality of voltages as inputs and the second subset of the plurality of voltages as outputs. The charge pump may not include a switch between each output voltage and a corresponding capacitor.Type: ApplicationFiled: November 15, 2012Publication date: December 5, 2013Applicant: QUALCOMM MEMS Technologies, Inc.Inventors: Didier H. Farenc, Nada Vukovic-Radic