Patents by Inventor Graeme Storm
Graeme Storm 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).
-
Publication number: 20230411928Abstract: An optical element is positioned in a holder over a laser light source. The optical element includes an electrical trace that is coupled between first and second pads. A sensing circuit that is also coupled to the first and second pads performs a voltage/current sensing operation to detect displacement of the optical element and control enablement of the laser light source.Type: ApplicationFiled: June 15, 2022Publication date: December 21, 2023Applicant: STMicroelectronics (Research & Development) LimitedInventors: Steven COLLINS, Graeme STORM, Supriya Raveendra HEGDE
-
Patent number: 11196229Abstract: A driver circuit for a laser diode is configured to pass a current. The circuit includes a charge-pump configured to generate an output boosted positive supply rail voltage. At least one switch is configured to couple the output of the charge-pump to a terminal of the laser diode and to isolate the positive supply rail from the terminal of the laser diode when the charge-pump is enabled.Type: GrantFiled: June 13, 2019Date of Patent: December 7, 2021Assignee: STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITEDInventors: Denise Lee, Graeme Storm, Aravind Venugopalan Nair Jalajakumari, Alexios Alexandropoulos
-
Patent number: 10641653Abstract: An apparatus includes a single photon avalanche diode pixel that includes a single photon avalanche diode and an output transistor configured to provide an analog output current from the single photon avalanche diode. The single photon avalanche diode pixel is configured to operate in a first mode to output a digital single photon detection event. The single photon avalanche diode pixel is further configured to operate in a second mode to output the analog output current indicating a level of illumination of the pixel.Type: GrantFiled: March 21, 2017Date of Patent: May 5, 2020Assignee: STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITEDInventors: Graeme Storm, John Kevin Moore
-
Publication number: 20190393674Abstract: A driver circuit for a laser diode is configured to pass a current. The circuit includes a charge-pump configured to generate an output boosted positive supply rail voltage. At least one switch is configured to couple the output of the charge-pump to a terminal of the laser diode and to isolate the positive supply rail from the terminal of the laser diode when the charge-pump is enabled.Type: ApplicationFiled: June 13, 2019Publication date: December 26, 2019Inventors: Denise Lee, Graeme Storm, Aravind Venugopalan Nair Jalajakumari, Alexios Alexandropoulos
-
Patent number: 10502816Abstract: A ranging apparatus includes an array of light sensitive detectors configured to receive light from a light source which has been reflected by an object. The array includes a number of different zones. Readout circuitry including at least one read out channel is configured to read data output from each of the zones. A processor operates to process the data output to determine position information associated with the object.Type: GrantFiled: May 31, 2016Date of Patent: December 10, 2019Assignees: STMicroelectronics (Research & Development) Limited, STMicroelectronics (Grenoble 2) SASInventors: Bruce Rae, Pascal Mellot, John Kevin Moore, Graeme Storm
-
Patent number: 10333626Abstract: An embodiment device includes an optical source configured to generate an optical carrier including an optical pulse train; and a modulator configured to modulate an amplitude of the optical pulse train, based on data generated by a data source, to produce a modulated optical signal.Type: GrantFiled: August 22, 2018Date of Patent: June 25, 2019Assignee: STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITEDInventors: Neale Dutton, Denise Lee, Graeme Storm
-
Patent number: 10283559Abstract: A pixel arrangement includes a photodiode, a reset transistor configured to be controlled by a reset signal and coupled to a reset input voltage, a transfer gate transistor configured to transfer charge from the photodiode to a node, wherein the transfer gate transistor is controlled by a transfer gate voltage, and a source follower transistor controlled by the voltage on the node and coupled to a source follower voltage. A capacitor is coupled between the node and an input voltage. During a read operation the input voltage is increased to boost the voltage at the node. The increased input voltage may, for example, be one the reset input voltage, said source follower voltage, said transfer gate voltage and a boosting voltage.Type: GrantFiled: July 3, 2017Date of Patent: May 7, 2019Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Research & Development) LimitedInventors: Graeme Storm, Christophe Mandier
-
Publication number: 20190013873Abstract: An embodiment device includes an optical source configured to generate an optical carrier including an optical pulse train; and a modulator configured to modulate an amplitude of the optical pulse train, based on data generated by a data source, to produce a modulated optical signal.Type: ApplicationFiled: August 22, 2018Publication date: January 10, 2019Inventors: Neale Dutton, Denise Lee, Graeme Storm
-
Patent number: 10079643Abstract: An embodiment device includes an optical source configured to generate an optical carrier including an optical pulse train; and a modulator configured to modulate an amplitude of the optical pulse train, based on data generated by a data source, to produce a modulated optical signal.Type: GrantFiled: November 23, 2016Date of Patent: September 18, 2018Assignee: STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITEDInventors: Neale Dutton, Denise Lee, Graeme Storm
-
Publication number: 20180145762Abstract: An embodiment device includes an optical source configured to generate an optical carrier including an optical pulse train; and a modulator configured to modulate an amplitude of the optical pulse train, based on data generated by a data source, to produce a modulated optical signal.Type: ApplicationFiled: November 23, 2016Publication date: May 24, 2018Inventors: Neale Dutton, Denise Lee, Graeme Storm
-
Publication number: 20180058924Abstract: An apparatus includes a single photon avalanche diode pixel that includes a single photon avalanche diode and an output transistor configured to provide an analog output current from the single photon avalanche diode. The single photon avalanche diode pixel is configured to operate in a first mode to output a digital single photon detection event. The single photon avalanche diode pixel is further configured to operate in a second mode to output the analog output current indicating a level of illumination of the pixel.Type: ApplicationFiled: March 21, 2017Publication date: March 1, 2018Inventors: Graeme Storm, John Kevin Moore
-
Patent number: 9881968Abstract: A pixel arrangement includes a photodiode, a reset transistor configured to be controlled by a reset signal and coupled to a reset input voltage, a transfer gate transistor configured to transfer charge from the photodiode to a node, wherein the transfer gate transistor is controlled by a transfer gate voltage, and a source follower transistor controlled by the voltage on the node and coupled to a source follower voltage. A capacitor is coupled between the node and an input voltage. During a read operation the input voltage is increased to boost the voltage at the node. The increased input voltage may, for example, be one the reset input voltage, said source follower voltage, said transfer gate voltage and a boosting voltage.Type: GrantFiled: January 5, 2016Date of Patent: January 30, 2018Assignees: STMicoelectronics (Grenoble 2 ) SAS, STMicroelectronics (Research & Development) LimitedInventors: Graeme Storm, Christophe Mandier, Laurence Stark
-
Publication number: 20170317138Abstract: A pixel arrangement includes a photodiode, a reset transistor configured to be controlled by a reset signal and coupled to a reset input voltage, a transfer gate transistor configured to transfer charge from the photodiode to a node, wherein the transfer gate transistor is controlled by a transfer gate voltage, and a source follower transistor controlled by the voltage on the node and coupled to a source follower voltage. A capacitor is coupled between the node and an input voltage. During a read operation the input voltage is increased to boost the voltage at the node. The increased input voltage may, for example, be one the reset input voltage, said source follower voltage, said transfer gate voltage and a boosting voltage.Type: ApplicationFiled: July 3, 2017Publication date: November 2, 2017Applicants: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Research & Development) LimitedInventors: Graeme Storm, Christophe Mandier
-
Patent number: 9728578Abstract: A pixel arrangement includes a photodiode, a reset transistor configured to be controlled by a reset signal and coupled to a reset input voltage, a transfer gate transistor configured to transfer charge from the photodiode to a node, wherein the transfer gate transistor is controlled by a transfer gate voltage, and a source follower transistor controlled by the voltage on the node and coupled to a source follower voltage. A capacitor is coupled between the node and an input voltage. During a read operation the input voltage is increased to boost the voltage at the node. The increased input voltage may, for example, be one the reset input voltage, said source follower voltage, said transfer gate voltage and a boosting voltage.Type: GrantFiled: August 8, 2014Date of Patent: August 8, 2017Assignees: STMICROELECTRONICS (GRENOBLE 2) SAS, STMicroelectronics (Research & Development) LimitedInventors: Graeme Storm, Christophe Mandier, Laurence Stark
-
Publication number: 20170176578Abstract: A ranging apparatus includes an array of light sensitive detectors configured to receive light from a light source which has been reflected by an object. The array includes a number of different zones. Readout circuitry including at least one read out channel is configured to read data output from each of the zones. A processor operates to process the data output to determine position information associated with the object.Type: ApplicationFiled: May 31, 2016Publication date: June 22, 2017Applicants: STMicroelectronics (Research & Development) Limited, STMicroelectronics (Grenoble 2) SASInventors: Bruce Rae, Pascal Mellot, John Kevin Moore, Graeme Storm
-
Publication number: 20160155773Abstract: A pixel arrangement includes a photodiode, a reset transistor configured to be controlled by a reset signal and coupled to a reset input voltage, a transfer gate transistor configured to transfer charge from the photodiode to a node, wherein the transfer gate transistor is controlled by a transfer gate voltage, and a source follower transistor controlled by the voltage on the node and coupled to a source follower voltage. A capacitor is coupled between the node and an input voltage. During a read operation the input voltage is increased to boost the voltage at the node. The increased input voltage may, for example, be one the reset input voltage, said source follower voltage, said transfer gate voltage and a boosting voltage.Type: ApplicationFiled: January 5, 2016Publication date: June 2, 2016Applicants: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Research & Development) LimitedInventors: Graeme Storm, Christophe Mandier, Laurence Stark
-
Patent number: 9313427Abstract: An image sensor having improved dynamic range includes a signal that is read out for a selection of pixels which act as a calibration to govern the choice of exposure levels to be applied to the rest of the array. In this way, the sensor is operable to adapt to variations in scene intensity. The pixels in the array are vertically and horizontally addressed so as to enable accounted for small areas of intensity variation across an imaged scene.Type: GrantFiled: December 11, 2012Date of Patent: April 12, 2016Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Research & Development) LimitedInventors: John Kevin Moore, Matthew Purcell, Graeme Storm, Tarek Lule
-
Publication number: 20150041865Abstract: A pixel arrangement includes a photodiode, a reset transistor configured to be controlled by a reset signal and coupled to a reset input voltage, a transfer gate transistor configured to transfer charge from the photodiode to a node, wherein the transfer gate transistor is controlled by a transfer gate voltage, and a source follower transistor controlled by the voltage on the node and coupled to a source follower voltage. A capacitor is coupled between the node and an input voltage. During a read operation the input voltage is increased to boost the voltage at the node. The increased input voltage may, for example, be one the reset input voltage, said source follower voltage, said transfer gate voltage and a boosting voltage.Type: ApplicationFiled: August 8, 2014Publication date: February 12, 2015Applicants: STMicroelectronics (Research & Development) Limited, STMICROELECTRONICS (GRENOBLE 2) SASInventors: Graeme Storm, Christophe Mandier, Laurence Stark
-
Patent number: 8841595Abstract: An image sensor includes an array of pixels. Each pixel has at least one photo-sensitive element. Readout circuitry receives an analog signal from each pixel at a first time and at a second time, between which the analog signal changes. The image sensor further includes associated support circuitry which is a source of time variant noise. The signal level at both first and second times includes pixel noise. Sample and hold circuitry is provided to maintain substantially level at least a proportion of this support circuitry noise time invariant at the sensor output between the first time and the second time.Type: GrantFiled: June 30, 2011Date of Patent: September 23, 2014Assignee: STMicroelectronics (Research & Development) LimitedInventors: Graeme Storm, Matthew Purcell
-
Patent number: 8772695Abstract: Each column of pixels in an image sensor array has at least two column bitlines connected to an output of each pixel. A readout input circuit includes first inputs and a second input. Each first input is connected, via a capacitance, to a comparator input node. The second input is connected via a capacitance to the same comparator input node. The first inputs receive, in parallel, an analog signal acquired from the pixels via the column bitlines. The analog signals vary during a pixel readout period and have a first level during a first calibration period and a second level during a second read period with the analog signals being constantly read onto the capacitances during both the first calibration period and the second read period. The comparator compares an average of the signals on the plurality of first inputs to the reference signal.Type: GrantFiled: December 13, 2011Date of Patent: July 8, 2014Assignee: STMicroelectronics (Research & Development) LimitedInventors: Graeme Storm, Matthew Purcell, Derek Tolmie, John Kevin Moore, Michael Wigley