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公开(公告)号：US12282612B2
公开(公告)日：2025-04-22
申请号：US18362724
申请日：2023-07-31
Inventor： Jeff M. Raynor
Abstract: The present disclosure is directed to a three-dimensional interactive display system. The system detects a position of a user (e.g., the user's finger or hand) or an optical emitter device, along three different dimensions. In a case where the system detects a position of a user's finger, the user wears a passive device having angled surfaces on his or her finger to improve detection of the user's finger. In a case where the system detects the optical emitter device, the user holds the optical emitter device or wears the optical emitter device similar to the passive device. The optical emitter device emits light, and the system tracks the optical emitting device by detecting the light emitted by the optical emitter device.
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公开(公告)号：US12253968B2
公开(公告)日：2025-03-18
申请号：US18063436
申请日：2022-12-08
Inventor： Sergio Miguez Aparicio , Benjamin Thomas Sarachi
Abstract: In accordance with an embodiment, a system includes: a primary device configured to be connected to at least one secondary device via serial bus having a data wire and a clock wire. The primary device is configured to: provide a clock signal on the clock wire; and transmit a frame comprising control bits on the serial bus, wherein a number of control bits transmitted on the serial bus at at least one location of the frame indicates a format of the frame.
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公开(公告)号：US11994424B2
公开(公告)日：2024-05-28
申请号：US17569171
申请日：2022-01-05
Applicant: STMicroelectronics (Research & Development) Limited , STMicroelectronics (Grenoble 2) SAS , STMicroelectronics (Crolles 2) SAS
Inventor： Pierre Malinge , Frédéric Lalanne , Jeffrey M. Raynor , Nicolas Moeneclaey
IPC: G01J1/42 , G09G3/3225 , H04N25/53 , H05B47/105
CPC classification number: G01J1/4204 , G09G3/3225 , H04N25/53 , H05B47/105 , G09G2320/0626 , G09G2360/144
Abstract: In an embodiment a method for measuring ambient light includes successively synchronizing optical signal acquisition phases with extinction phases of a disruptive light source, wherein the disruptive light source periodically provides illumination phases and the extinction phases, accumulating, in each acquisition phase, photo-generated charges by at least one photosensitive pixel comprising a pinned photodiode, wherein an area of the pinned photodiode is less than or equal to 1/10 of an area of the at least one photosensitive pixel, transferring, for each pixel, the accumulated photo-generated charges to a sensing node, converting, for each pixel, the transferred charges to a voltage at a voltage node and converting, for each pixel, the transferred charges to a digital number.
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公开(公告)号：US20240151579A1
公开(公告)日：2024-05-09
申请号：US18492903
申请日：2023-10-24
Inventor： Jeffrey M. Raynor
CPC classification number: G01J1/4204 , G01J1/44 , G01J2001/446
Abstract: A common centroid ambient light sensor includes a matrix of photodiodes having exactly a first row and a second row, at least three color channels, a readout circuit of the first color channel connected to exactly one photodiode in the first row and exactly one photodiode in the second row, and a readout circuit of the second color channel connected to exactly one photodiode in the first row and exactly one photodiode in the second row.
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公开(公告)号：US20240145503A1
公开(公告)日：2024-05-02
申请号：US17975178
申请日：2022-10-27
Inventor： Mohammed AL-RAWHANI , Bruce RAE
IPC: H01L27/146 , H01L31/107
CPC classification number: H01L27/14616 , H01L27/14643 , H01L31/107
Abstract: Disclosed herein is a single photon avalanche diode (SPAD) pixel for use in time-of-flight imaging. This pixel includes a SPAD having a cathode connected to a first node and an anode coupled to first negative voltage. A transistor circuit in the pixel includes a quench transistor connected between a supply voltage node and a second node, the quench transistor controlled by a quench control signal to operate in a high-impedance mode, and a recharge transistor connected in parallel with the quench transistor between the supply voltage node and the second node, the recharge transistor controlled by a feedback signal. The pixel also includes a readout inverter generating an output signal based upon a voltage at the first node and an adjustable delay circuit generating the feedback signal based upon the output signal, the feedback signal being delayed with respect to the output signal.
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Patent Agency Ranking
公开(公告)号：US11962900B2
公开(公告)日：2024-04-16
申请号：US16998567
申请日：2020-08-20
Inventor： Neale Dutton , Stuart McLeod , Bruce Rae
IPC: H04N23/67 , G01S7/481 , G01S7/4863 , G01S17/86 , G01S17/894 , H01S5/183 , H04M1/02 , H04N23/90 , H04N25/443
CPC classification number: H04N23/67 , G01S7/4815 , G01S7/4863 , G01S17/86 , G01S17/894 , H04M1/0202 , H04N23/90 , H04N25/443 , H01S5/183 , H04M2250/12 , H04N23/671
Abstract: In some embodiments, a ToF sensor includes an illumination source module, a transmitter lens module, a receiver lens module, and an integrated circuit that includes a ToF imaging array. The ToF imaging array includes a plurality of SPADs and a plurality of ToF channels coupled to the plurality of SPADs. In a first mode, the ToF imaging array is configured to select a first group of SPADs corresponding to a first FoV. In a second mode, the ToF imaging array is configured to select a second group of SPADs corresponding to a second FoV different than the first FoV.
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公开(公告)号：US20240077592A1
公开(公告)日：2024-03-07
申请号：US17939471
申请日：2022-09-07
Inventor： John Kevin Moore
IPC: G01S7/4861 , G01S7/4865 , G01S17/10
CPC classification number: G01S7/4861 , G01S7/4865 , G01S17/10
Abstract: An optical ranging system includes: a first phase-locked loop (PLL) configured to generate a first frequency signal and a second frequency signal; a second PLL configured to generate a third frequency signal based on a control signal that is formed using the first frequency signal; an optical source coupled to the second PLL, where an intensity of an optical signal emitted by the optical source is configured to be modulated in accordance with the third frequency signal; a first single-photon avalanche diode (SPAD) configured to receive a reflected optical signal; a time-to-digital converter (TDC) coupled to the first SPAD, where the TDC is configured to generate digital samples by sampling an output signal of the first SPAD under control of the second frequency signal; a reference signal generator configured to generate a reference signal; and a mixer configured to mix the reference signal and the digital samples from the TDC.
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公开(公告)号：US20240063235A1
公开(公告)日：2024-02-22
申请号：US18386859
申请日：2023-11-03
Inventor： Francois GUYADER , Sara PELLEGRINI , Bruce RAE
IPC: H01L27/146 , G01J1/44 , H01L31/107 , H04N25/70
CPC classification number: H01L27/1461 , G01J1/44 , H01L27/14634 , H01L31/107 , H04N25/70 , G01J2001/4466
Abstract: An electronic device includes a stack of a first level having a SPAD, a second level having a quench circuit for said SPAD, and a third level having a circuit for processing data generated by said SPAD. A method for making the device includes: a) forming of the first level; b) bonding, on the first level, by molecular bonding, of a stack of layers including a semiconductor layer; and c) forming the quench circuit of the second level in the semiconductor layer.
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公开(公告)号：US20240045126A1
公开(公告)日：2024-02-08
申请号：US17881236
申请日：2022-08-04
Inventor： Kevin CHANNON , Enrico Giuseppe CARNEMOLLA
CPC classification number: F21V5/007 , G02B5/3083 , F21V5/08 , F21V9/14 , G06V40/161
Abstract: The present disclosure is directed to a device configured to act as a flood illuminator and a dot projector. The device utilizes a dual channel light source configured to switch between first and second polarizations, and a polarization sensitive metaoptic that outputs dot projection and flood illumination in response to receiving the first polarization and the second polarization, respectively.
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公开(公告)号：US11885915B2
公开(公告)日：2024-01-30
申请号：US16834347
申请日：2020-03-30
Inventor： Neale Dutton , John Kevin Moore
IPC: G01S7/4865 , G01S17/10 , G01S17/89
CPC classification number: G01S7/4865 , G01S17/10 , G01S17/89
Abstract: In an embodiment, a method includes: receiving a first plurality of digital codes from a time-to-digital converter (TDC); TDC; generating a coarse histogram from the first plurality of digital codes; detecting a peak coarse bin from the plurality of coarse bins; after receiving the first plurality of digital codes, receiving a second plurality of digital codes from the TDC; and generating a fine histogram from the second plurality of digital codes based on the detected peak coarse bin, where a fine histogram depth range is narrower than a coarse histogram depth range, where a lowest fine histogram depth is lower or equal to a lowest coarse peak depth, and where a highest fine histogram depth is higher or equal to a highest coarse peak depth.
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