Patents by Inventor Rahmi Hezar
Rahmi Hezar 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: 20240056066Abstract: Embodiments relate to identifying frequencies to be protected at a victim integrated circuit (IC) and sending protection information including the identified frequencies to an aggressor IC. The aggressor IC configures its subsystems or circuits to operate using operating frequencies that prevents spurs that may interfere with the frequencies identified in the protection information. If not all of the frequencies in the protection information can be protected, the aggressor IC selects a subset of the frequencies to be protected. Then, the aggressor IC configures the operating frequencies of its subsystems or circuits so that spurs that they generate do not interfere with the selected frequencies.Type: ApplicationFiled: August 25, 2023Publication date: February 15, 2024Applicant: Apple Inc.Inventors: Helena Deirdre O'SHEA, Ali MOAZ, Tim SCHOENAUER, Rahmi HEZAR
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Patent number: 11777479Abstract: Embodiments relate to identifying frequencies to be protected at a victim integrated circuit (IC) and sending protection information including the identified frequencies to an aggressor IC. The aggressor IC configures its subsystems or circuits to operate using operating frequencies that prevents spurs that may interfere with the frequencies identified in the protection information. If not all of the frequencies in the protection information can be protected, the aggressor IC selects a subset of the frequencies to be protected. Then, the aggressor IC configures the operating frequencies of its subsystems or circuits so that spurs that they generate do not interfere with the selected frequencies.Type: GrantFiled: October 31, 2022Date of Patent: October 3, 2023Assignee: APPLE INC.Inventors: Helena Deirdre O'Shea, Ali Moaz, Tim Schoenauer, Rahmi Hezar
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Patent number: 11754905Abstract: In described examples, a system (e.g., a security system or a vehicle operator assistance system) is configured to configure a phased spatial light modulator (SLM) to generate a diffraction pattern. A coherent light source is optically coupled to direct coherent light upon the SLM. The SLM is configured to project diffracted coherent light toward a region of interest. An optical element is configured to focus the diffracted coherent light toward the at least one region of interest.Type: GrantFiled: September 27, 2019Date of Patent: September 12, 2023Assignee: Texas Instruments IncorporatedInventors: Jeffrey Matthew Kempf, Nirmal C. Warke, David P. Magee, Rahmi Hezar, Baher S. Haroun
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Patent number: 11721779Abstract: An integrated circuit includes a photodetector that has an epitaxial layer with a first conductivity type located over a substrate. A buried layer of the first conductivity type is located within the epitaxial layer and has a higher carrier concentration than the epitaxial layer. A semiconductor layer located over the buried layer has an opposite second conductivity type and includes a first sublayer over the buried semiconductor layer and a second sublayer between the first sublayer and the buried layer. The first sublayer has a larger lateral dimension than the second sublayer, and has a lower carrier concentration than the second sublayer.Type: GrantFiled: April 30, 2021Date of Patent: August 8, 2023Assignee: Texas Instruments IncorporatedInventors: Rahmi Hezar, Henry Litzmann Edwards
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Publication number: 20230238410Abstract: The present disclosure generally relates to a surface grating in a photodetector device. In an example, a semiconductor device structure includes a photodetector device. The photodetector device includes one or more photodiodes disposed in or over a semiconductor substrate, and includes a surface grating disposed at a respective surface of each photodiode of the one or more photodiodes. The surface grating has one or more periodicities. Each periodicity of the one or more periodicities has a period that is along a direction parallel to a first lateral direction across the semiconductor substrate and that is equal to or less than half of a dimension of at least one photodiode of the one or more photodiodes along a direction parallel to the first lateral direction. The one or more periodicities includes multiple different pitches.Type: ApplicationFiled: January 27, 2022Publication date: July 27, 2023Inventors: Henry Edwards, Rahmi Hezar, Udumbara Wijesinghe, Wenjuan Fan, Gerd Schuppener
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Publication number: 20230072903Abstract: Embodiments relate to updating spur cancellation at a victim integrated circuit (IC) in accordance with dynamic changes in the operating frequencies of an aggressor IC. The aggressor IC changes its operating frequencies at an update time that is determined in advance. The update time and the changes to the operating frequencies are shared with the victim IC. The victim IC dynamically updates the relationships between frequencies of local clock signals for the victim IC and the aggressor IC. The victim IC generates a spur cancellation parameter based on the updated relationships of local clock frequencies, the update time and the changes to the operating frequencies of the aggressor IC, and configures a spur cancellation circuit. In this way, the victim IC may perform effective spur cancellation despite changes in the operating frequencies of the aggressor IC and deviation of the local clock frequencies.Type: ApplicationFiled: September 8, 2021Publication date: March 9, 2023Inventors: Helena Deirdre O'Shea, Dmitry Cherniavsky, Tim Schoenauer, Ali Moaz, Rahmi Hezar, Ram Kanumalli
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Publication number: 20230073376Abstract: Embodiments relate to identifying frequencies to be protected at a victim integrated circuit (IC) and sending protection information including the identified frequencies to an aggressor IC. The aggressor IC configures its subsystems or circuits to operate using operating frequencies that prevents spurs that may interfere with the frequencies identified in the protection information. If not all of the frequencies in the protection information can be protected, the aggressor IC selects a subset of the frequencies to be protected. Then, the aggressor IC configures the operating frequencies of its subsystems or circuits so that spurs that they generate do not interfere with the selected frequencies.Type: ApplicationFiled: October 31, 2022Publication date: March 9, 2023Inventors: Helena Deirdre O'Shea, Ali Moaz, Tim Schoenauer, Rahmi Hezar
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Publication number: 20230049751Abstract: A sensor chip includes a sensor pixel. The sensor pixel includes an avalanche photodetector. A circuit is adjacent to the avalanche photodetector. The circuit is coupled to the avalanche photodetector. An isolation structure at least partially encloses the circuit and is between the avalanche photodetector and the circuit.Type: ApplicationFiled: August 13, 2021Publication date: February 16, 2023Inventors: Rahmi HEZAR, Henry Litzmann EDWARDS, Miaad ALIROTEH, Srinath Mathur RAMASWAMY, Baher HAROUN, Gerd SCHUPPENER
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Publication number: 20220413106Abstract: A pulsed light source illuminates a scene with a virtual array of points. Light reflected by the scene is detected by a small pixel array, allowing generation of a three-dimensional map of the scene. A processing element processing data output by the small pixel array uses a multipath resolution algorithm to resolve individual objects in the scene.Type: ApplicationFiled: August 28, 2022Publication date: December 29, 2022Inventors: Baher HAROUN, Rahmi HEZAR, Srinath RAMASWAMY, Nirmal C. WARKE, David MAGEE, Ting LI
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Patent number: 11522531Abstract: Identifying frequencies to be protected at a victim integrated circuit (IC) and sending protection information including the identified frequencies to an aggressor IC. The aggressor IC configures its subsystems or circuits to operate using operating frequencies that prevents spurs that may interfere with the frequencies identified in the protection information. If not all of the frequencies in the protection information can be protected, the aggressor IC selects a subset of the frequencies to be protected. Then, the aggressor IC configures the operating frequencies of its subsystems or circuits so that spurs that they generate do not interfere with the selected frequencies.Type: GrantFiled: September 8, 2021Date of Patent: December 6, 2022Assignee: Apple Inc.Inventors: Helena Deirdre O'Shea, Ali Moaz, Tim Schoenauer, Rahmi Hezar
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Patent number: 11500094Abstract: Sensing apparatus includes a radiation source, which emits pulses of optical radiation toward multiple points in a target scene. A receiver receives the optical radiation that is reflected from the target scene and outputs signals that are indicative of respective times of flight of the pulses to and from the points in the target scene. Processing and control circuitry selects a first pulse repetition interval (PRI) and a second PRI, greater than the first PRI, from a permitted range of PRIs, drives the radiation source to emit a first sequence of the pulses at the first PRI and a second sequence of the pulses at a second PRI, and processes the signals output in response to both the first and second sequences of the pulses in order to compute respective depth coordinates of the points in the target scene.Type: GrantFiled: May 28, 2020Date of Patent: November 15, 2022Assignee: APPLE INC.Inventors: Thierry Oggier, Bernhard Buettgen, Cristiano L Niclass, Rahmi Hezar, Shingo Mandai, Darshan Shrestha, Gary Chung, Moshe Laifenfeld
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Publication number: 20220352406Abstract: An integrated circuit includes a photodetector that has an epitaxial layer with a first conductivity type located over a substrate. A buried layer of the first conductivity type is located within the epitaxial layer and has a higher carrier concentration than the epitaxial layer. A semiconductor layer located over the buried layer has an opposite second conductivity type and includes a first sublayer over the buried semiconductor layer and a second sublayer between the first sublayer and the buried layer. The first sublayer has a larger lateral dimension than the second sublayer, and has a lower carrier concentration than the second sublayer.Type: ApplicationFiled: April 30, 2021Publication date: November 3, 2022Inventors: Rahmi HEZAR, Henry Litzmann EDWARDS
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Patent number: 11460551Abstract: A pulsed light source illuminates a scene with a virtual array of points. Light reflected by the scene is detected by a small pixel array, allowing generation of a three-dimensional map of the scene. A processing element processing data output by the small pixel array uses a multipath resolution algorithm to resolve individual objects in the scene.Type: GrantFiled: February 27, 2019Date of Patent: October 4, 2022Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Baher Haroun, Rahmi Hezar, Srinath Ramaswamy, Nirmal C. Warke, David Magee, Ting Li
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Publication number: 20220244391Abstract: Optical sensing apparatus includes a radiation source, which directs a series of optical pulses toward a target scene. A first array of single-photon detectors receives optical radiation that is reflected from the target scene and outputs electrical pulses in response to incident photons. A second array of counters aggregates and counts the electrical pulses output by the single-photon detectors over respective periods indicated by respective gating signals applied to the counters. Control logic applies the respective gating signals to the counters, in each of a sequence of image frames, so as to cause different ones of the counters to aggregate and count the electrical pulses output by one or more of the single-photon detectors over different, respective gating intervals relative to each of the optical pulses, and to sum the frame histograms generated with different temporal offsets so as to compute and output a cumulative histogram.Type: ApplicationFiled: December 12, 2021Publication date: August 4, 2022Inventors: Shingo Mandai, Cristiano L Niclass, Nadav Fine, Oz Barak, Rahmi Hezar
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Patent number: 11171616Abstract: A first branch group circuit includes a first branch circuit receiving a first RF input signal and first control information; and a second branch circuit receiving the first input signal and second control information. Each of the first and second branch circuits includes a power amplifier. The second control information enables the second branch circuit to be switched on or off while the first branch circuit remains on. A second branch group circuit includes: a third branch circuit receiving a second RF input signal and third control information; and a fourth branch circuit receiving the second input signal and fourth control information. Each of the third and fourth branch circuits includes a power amplifier. The fourth control information enables the fourth branch circuit to be switched on or off while the third branch circuit remains on. A combiner combines output signals of the power amplifiers to produce an output signal.Type: GrantFiled: January 28, 2019Date of Patent: November 9, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Aritra Banerjee, Rahmi Hezar, Lei Ding, Nathan Richard Schemm
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Patent number: 11140478Abstract: A system for driving an audio speaker that has an impedance, the system comprising: a scaler having an analog input and a scaler output that is an attenuated analog input; an amplifier having an amplifier input coupled to the scaler output and an amplifier output; a current sensor having a sensor input coupled to the speaker and a sensor output, the current sensor configured to generate a sensor signal at the sensor output responsive to a current from the audio speaker; and a compensator circuit having a circuit input coupled to the sensor output and a circuit output coupled to the amplifier input, the compensator circuit configured to supply a compensation signal to the amplifier input by applying a transfer function to the sensor signal.Type: GrantFiled: May 13, 2020Date of Patent: October 5, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Rahmi Hezar, Rajan Narasimha, Srinath Ramaswamy
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Publication number: 20210096442Abstract: In described examples, a system (e.g., a security system or a vehicle operator assistance system) is configured to configure a phased spatial light modulator (SLM) to generate a diffraction pattern. A coherent light source is optically coupled to direct coherent light upon the SLM. The SLM is configured to project diffracted coherent light toward a region of interest. An optical element is configured to focus the diffracted coherent light toward the at least one region of interest.Type: ApplicationFiled: September 27, 2019Publication date: April 1, 2021Inventors: Jeffrey Matthew Kempf, Nirmal C. Warke, David P. Magee, Rahmi Hezar, Baher S. Haroun
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Publication number: 20200386890Abstract: Sensing apparatus includes a radiation source, which emits pulses of optical radiation toward multiple points in a target scene. A receiver receives the optical radiation that is reflected from the target scene and outputs signals that are indicative of respective times of flight of the pulses to and from the points in the target scene. Processing and control circuitry selects a first pulse repetition interval (PRI) and a second PRI, greater than the first PRI, from a permitted range of PRIs, drives the radiation source to emit a first sequence of the pulses at the first PRI and a second sequence of the pulses at a second PRI, and processes the signals output in response to both the first and second sequences of the pulses in order to compute respective depth coordinates of the points in the target scene.Type: ApplicationFiled: May 28, 2020Publication date: December 10, 2020Inventors: Thierry Oggier, Bernhard Buettgen, Cristiano L. Niclass, Rahmi Hezar, Shingo Mandai, Darshan Shrestha, Gary Chung, Moshe Laifenfeld
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Publication number: 20200275206Abstract: A system for driving an audio speaker that has an impedance, the system comprising: a scaler having an analog input and a scaler output that is an attenuated analog input; an amplifier having an amplifier input coupled to the scaler output and an amplifier output; a current sensor having a sensor input coupled to the speaker and a sensor output, the current sensor configured to generate a sensor signal at the sensor output responsive to a current from the audio speaker; and a compensator circuit having a circuit input coupled to the sensor output and a circuit output coupled to the amplifier input, the compensator circuit configured to supply a compensation signal to the amplifier input by applying a transfer function to the sensor signal.Type: ApplicationFiled: May 13, 2020Publication date: August 27, 2020Inventors: RAHMI HEZAR, RAJAN NARASIMHA, SRINATH RAMASWAMY
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Publication number: 20200209359Abstract: A pulsed light source illuminates a scene with a virtual array of points. Light reflected by the scene is detected by a small pixel array, allowing generation of a three-dimensional map of the scene. A processing element processing data output by the small pixel array uses a multipath resolution algorithm to resolve individual objects in the scene.Type: ApplicationFiled: February 27, 2019Publication date: July 2, 2020Inventors: Baher HAROUN, Rahmi HEZAR, Srinath RAMASWAMY, Nirmal C. WARKE, David MAGEE, Ting LI