Patents by Inventor Arnaud Deleule
Arnaud Deleule 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).
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Publication number: 20230400904Abstract: A method for operating an electronic device includes while a display is in low power mode, detecting based on data collected by a time of flight (ToF) sensor, a movable object within a field of view of the electronic device; in response to the detecting initiating a period of detection having a plurality of frames, the period of detection being a time period over which a distance value indicative of a distance between the movable object and the display is detected; for each of the plurality of frames, changing the distance value to reflect whether the movable object is moving near or further from the electronic device; detecting that the distance value after the period of detection is less than a threshold distance value indicative of the movable object approaching the display; if the distance value is less than the threshold distance value, waking up the display.Type: ApplicationFiled: June 14, 2022Publication date: December 14, 2023Inventors: Arnaud Deleule, Kalyan-Kumar Vadlamudi-Reddy, Darin K Winterton, Jihong Chen, Olivier Lemarchand
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Publication number: 20220333912Abstract: The present disclosure is directed to a system and method of controlling a facial recognition process by validating preconditions with a ranging sensor. The ranging sensor transmits a ranging signal that is reflected off of a user's face and received back at the ranging sensor. The received ranging signal can be used to determine distance between the user's face and the mobile device or to determine the reflectivity of the user's face. Comparing the distance to a range of distances corresponding to normal operation of the device or normal reflectivities associated with human skin tones can reduce the number of false positive activations of the facial recognition process. Furthermore, a multiple zone ranging sensor can produce a face depth map that can be compared to a stored face depth map or can produce a reflectivity map that can be compared to a stored face reflectivity map to further increase power efficiency and device security.Type: ApplicationFiled: July 1, 2022Publication date: October 20, 2022Applicant: STMICROELECTRONICS, INC.Inventors: Arnaud DELEULE, John E. KVAM, Kalyan-Kumar VADLAMUDI-REDDY
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Patent number: 11397077Abstract: The present disclosure is directed to a system and method of controlling a facial recognition process by validating preconditions with a ranging sensor. The ranging sensor transmits a ranging signal that is reflected off of a user's face and received back at the ranging sensor. The received ranging signal can be used to determine distance between the user's face and the mobile device or to determine the reflectivity of the user's face. Comparing the distance to a range of distances corresponding to normal operation of the device or normal reflectivities associated with human skin tones can reduce the number of false positive activations of the facial recognition process. Furthermore, a multiple zone ranging sensor can produce a face depth map that can be compared to a stored face depth map or can produce a reflectivity map that can be compared to a stored face reflectivity map to further increase power efficiency and device security.Type: GrantFiled: December 18, 2018Date of Patent: July 26, 2022Assignee: STMICROELECTRONICS, INC.Inventors: Arnaud Deleule, John E. Kvam, Kalyan-Kumar Vadlamudi-Reddy
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Publication number: 20210033704Abstract: A time of flight range detection device includes a laser configured to transmit an optical pulse into an image scene, a return single-photon avalanche diode (SPAD) array, a reference SPAD array, a range detection circuit coupled to the return SPAD array and the reference SPAD array, and a laser driver circuit. The range detection circuit in operation determines a distance to an object based on signals from the return SPAD array and the reference SPAD array. The laser driver circuit in operation varies an output power level of the laser in response to the determined distance to the object.Type: ApplicationFiled: October 6, 2020Publication date: February 4, 2021Inventors: Xiaoyong YANG, Rui XIAO, Arnaud DELEULE
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Patent number: 10823826Abstract: A time of flight range detection device includes a laser configured to transmit an optical pulse into an image scene, a return single-photon avalanche diode (SPAD) array, a reference SPAD array, a range detection circuit coupled to the return SPAD array and the reference SPAD array, and a laser driver circuit. The range detection circuit in operation determines a distance to an object based on signals from the return SPAD array and the reference SPAD array. The laser driver circuit in operation varies an output power level of the laser in response to the determined distance to the object.Type: GrantFiled: May 25, 2017Date of Patent: November 3, 2020Assignee: STMicroelectronics, Inc.Inventors: Xiaoyong Yang, Rui Xiao, Arnaud Deleule
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Patent number: 10594920Abstract: A device includes a time-of-flight ranging sensor configured to transmit optical pulse signals and to receive return optical pulse signals. The time-of-flight ranging sensor processes the return optical pulse signals to sense distances to a plurality of objects and to generate a confidence value indicating whether one of the plurality of objects has a highly reflective surface. The time-of-flight sensor generates a range estimation signal including a plurality of sensed distances and the confidence value. The image capture device includes autofocusing circuitry coupled to the time-of-flight sensor to receive the range estimation signal and configured to control focusing based upon the sensed distances responsive to the confidence value indicating none of the plurality of objects has a highly reflective surface. The autofocusing circuitry controls focusing independent of the sensed distances responsive to the confidence value indicating one of the objects has a highly reflective surface.Type: GrantFiled: June 15, 2017Date of Patent: March 17, 2020Assignee: STMICROELECTRONICS, INC.Inventors: Xiaoyong Yang, Darin K. Winterton, Arnaud Deleule
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Publication number: 20190212125Abstract: The present disclosure is directed to a system and method of controlling a facial recognition process by validating preconditions with a ranging sensor. The ranging sensor transmits a ranging signal that is reflected off of a user's face and received back at the ranging sensor. The received ranging signal can be used to determine distance between the user's face and the mobile device or to determine the reflectivity of the user's face. Comparing the distance to a range of distances corresponding to normal operation of the device or normal reflectivities associated with human skin tones can reduce the number of false positive activations of the facial recognition process. Furthermore, a multiple zone ranging sensor can produce a face depth map that can be compared to a stored face depth map or can produce a reflectivity map that can be compared to a stored face reflectivity map to further increase power efficiency and device security.Type: ApplicationFiled: December 18, 2018Publication date: July 11, 2019Inventors: Arnaud DELEULE, John E. KVAM, Kalyan-Kumar VADLAMUDI-REDDY
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Patent number: 10187563Abstract: At least one image of a moving object is acquired using an image acquisition device equipped with an automatic focussing system. A distance between the object and the device when the effective acquisition of the image occurs is estimated based on the estimated speed and on the period of time separating a time of actuation triggering the process for acquiring the at least one image from the time of acquisition of the said effective acquisition, and the taking into account of the said distance by the automatic focussing system.Type: GrantFiled: December 31, 2015Date of Patent: January 22, 2019Assignee: STMICROELECTRONICS (GRENOBLE 2) SASInventor: Arnaud Deleule
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Publication number: 20170366737Abstract: A device includes a time-of-flight ranging sensor configured to transmit optical pulse signals and to receive return optical pulse signals. The time-of-flight ranging sensor processes the return optical pulse signals to sense distances to a plurality of objects and to generate a confidence value indicating whether one of the plurality of objects has a highly reflective surface. The time-of-flight sensor generates a range estimation signal including a plurality of sensed distances and the confidence value. The image capture device includes autofocusing circuitry coupled to the time-of-flight sensor to receive the range estimation signal and configured to control focusing based upon the sensed distances responsive to the confidence value indicating none of the plurality of objects has a highly reflective surface. The autofocusing circuitry controls focusing independent of the sensed distances responsive to the confidence value indicating one of the objects has a highly reflective surface.Type: ApplicationFiled: June 15, 2017Publication date: December 21, 2017Inventors: Xiaoyong Yang, Darin K. Winterton, Arnaud Deleule
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Publication number: 20170356981Abstract: A time of flight range detection device includes a laser configured to transmit an optical pulse into an image scene, a return single-photon avalanche diode (SPAD) array, a reference SPAD array, a range detection circuit coupled to the return SPAD array and the reference SPAD array, and a laser driver circuit. The range detection circuit in operation determines a distance to an object based on signals from the return SPAD array and the reference SPAD array. The laser driver circuit in operation varies an output power level of the laser in response to the determined distance to the object.Type: ApplicationFiled: May 25, 2017Publication date: December 14, 2017Inventors: Xiaoyong YANG, Rui XIAO, Arnaud DELEULE
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Publication number: 20170104917Abstract: At least one image of a moving object is acquired using an image acquisition device equipped with an automatic focussing system. A distance between the object and the device when the effective acquisition of the image occurs is estimated based on the estimated speed and on the period of time separating a time of actuation triggering the process for acquiring the at least one image from the time of acquisition of the said effective acquisition, and the taking into account of the said distance by the automatic focussing system.Type: ApplicationFiled: December 31, 2015Publication date: April 13, 2017Inventor: Arnaud DELEULE
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Patent number: 9232153Abstract: A flicker compensation method for images taken by an image sensor operating in rolling-shutter mode may include capturing a first image and capturing a second image offset in time from the first image by an integer or zero number of flicker periods, plus half a flicker period. The method may also include producing a compensated image based on an average of the first and second images.Type: GrantFiled: October 13, 2014Date of Patent: January 5, 2016Assignee: STMICROELECTRONICS (GRENOBLE 2) SASInventors: Mhamed Elhachimi, Arnaud Deleule, Adrien Martin
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Publication number: 20150103209Abstract: A flicker compensation method for images taken by an image sensor operating in rolling-shutter mode may include capturing a first image and capturing a second image offset in time from the first image by an integer or zero number of flicker periods, plus half a flicker period. The method may also include producing a compensated image based on an average of the first and second images.Type: ApplicationFiled: October 13, 2014Publication date: April 16, 2015Inventors: Mhamed Elhachimi, Arnaud Deleule, Adrien Martin
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Patent number: 7120886Abstract: A device for determining the version of metal mask utilized for producing a given metal layer (Metal3) in an integrated circuit including a plurality of metal layers (Metal0, . . . , Metal3), and any modification made to the given metal layer (Metal3) requiring generation of a new version of the corresponding metal mask. The device includes a cell (Cell) integrated into the metal layer (Metal3) including at least a first voltage source (Vdd) for supplying a first voltage level, at least a second voltage source (GND) for supplying a second voltage level, and an output bus composed of at least one conductor wire (S1, S2) connected selectively to one of the first and second voltage sources as a function of the version of metal mask used to produce the metal layer, so as to generate a binary output signal representative of the mask version utilized.Type: GrantFiled: October 30, 2003Date of Patent: October 10, 2006Assignee: STMicroelectronics, S.A.Inventor: Arnaud Deleule
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Publication number: 20040143805Abstract: A device for determining the version of metal mask utilized for producing a given metal layer (Metal3) in an integrated circuit including a plurality of metal layers (Meta0, . . . , Metal3), and any modification made to the given metal layer (Metal3) requiring generation of a new version of the corresponding metal mask. The device includes a cell (Cell) integrated into the metal layer (Metal3) including at least a first voltage source (Vdd) for supplying a first voltage level, at least a second voltage source (GND) for supplying a second voltage level, and an output bus composed of at least one conductor wire (S1, S2) connected selectively to one of the first and second voltage sources as a function of the version of metal mask used to produce the metal layer, so as to generate a binary output signal representative of the mask version utilized.Type: ApplicationFiled: October 30, 2003Publication date: July 22, 2004Applicant: STMICROELECTRONICS S.A.Inventor: Arnaud Deleule