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公开(公告)号：US20200049801A1
公开(公告)日：2020-02-13
申请号：US16059473
申请日：2018-08-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Keyvan Sayyah , Pamela R. Patterson , Raymond Sarkissian , Richard Kremer , Oleg Efimov
Abstract: A chip-scale LIDAR (light detection and ranging) system, optical package and LIDAR platform. The system includes a photonic chip, a laser associated with the photonic chip, an optical circulator, and a MEMS scanner. The laser, the optical circulator and the MEMS scanner are collinear. The photonic chip includes an edge coupler. The optical package includes a housing having an aperture, and a platform within the housing. The platform includes the laser, an optical circulator, and MEMS scanner.
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公开(公告)号：US20200088878A1
公开(公告)日：2020-03-19
申请号：US16554866
申请日：2019-08-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Timothy J. Talty , Keyvan Sayyah , Michael Mulqueen , Richard Kremer
Abstract: A vehicle, Lidar system and method of detecting an object is disclosed. The Lidar system includes a photonic chip having a laser, an on-chip frequency shifter, a combiner and a first set of photodetectors. The laser generates a transmitted light beam and an associated local oscillator beam within the photonic chip. The on-chip frequency shifter shifts a frequency of the local oscillator beam. The combiner combines a reflected light beam with the frequency-shifted local oscillator beam, wherein the reflected light beam is a reflection of the transmitted light beam from the object to generate a first electronic signal at the first set of photodetectors. A processor obtains a first measurement of a parameter of the object from the first electronic signal. The vehicle includes a navigation system for navigating the vehicle with respect to the object using at least the first measurement of the parameter.
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公开(公告)号：US20200088848A1
公开(公告)日：2020-03-19
申请号：US16554858
申请日：2019-08-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Richard Kremer , Timothy J. Talty , Pamela R. Patterson , Biqin Huang , Michael Mulqueen
Abstract: A vehicle, Lidar system and method of detecting an object is disclosed. The Lidar system includes a photonic chip having an aperture, one or more photodetectors and a circulator. A transmitted light beam generated within the photonic chip exits the photonic chip via the aperture and a reflected light beam enters the photonic chip via the aperture, the reflected light beam being a reflection of the transmitted light beam from the object. The one or more photodetectors measure the parameter of the object from at least the reflected light beam. The circulator integrated into the photonic chip directs the transmitted light beam toward the aperture and directs the reflected light beam from the aperture to the one or more photodetectors. A navigation system navigates the vehicle with respect to the object based on the parameter of the object.
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公开(公告)号：US20190018110A1
公开(公告)日：2019-01-17
申请号：US16018716
申请日：2018-06-26
Applicant: GM Global Technology Operations LLC
Inventor： Richard Kremer , Keyvan Sayyah
Abstract: A chip-scale lidar system includes a first light source to output a first signal, and a second light source to output a second signal. A transmit beam coupler provides an output signal for transmission that includes a portion of the first signal and a portion of the second signal, and receive beam coupler obtains a received signal resulting from reflection of the output signal by a target. The system includes a first and second set of photodetectors to obtain a first and second set of electrical currents from a first and second set of combined signals including a first and second portion of the received signal. A processor obtains Doppler information about the target from the second set of electrical currents and obtains range information about the target from the first set of electrical currents and the second set of electrical currents.
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公开(公告)号：US11579294B2
公开(公告)日：2023-02-14
申请号：US16554866
申请日：2019-08-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Timothy J. Talty , Keyvan Sayyah , Michael Mulqueen , Richard Kremer
Abstract: A vehicle, Lidar system and method of detecting an object is disclosed. The Lidar system includes a photonic chip having a laser, an on-chip frequency shifter, a combiner and a first set of photodetectors. The laser generates a transmitted light beam and an associated local oscillator beam within the photonic chip. The on-chip frequency shifter shifts a frequency of the local oscillator beam. The combiner combines a reflected light beam with the frequency-shifted local oscillator beam, wherein the reflected light beam is a reflection of the transmitted light beam from the object to generate a first electronic signal at the first set of photodetectors. A processor obtains a first measurement of a parameter of the object from the first electronic signal. The vehicle includes a navigation system for navigating the vehicle with respect to the object using at least the first measurement of the parameter.
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Patent Agency Ranking
公开(公告)号：US11105900B2
公开(公告)日：2021-08-31
申请号：US16059473
申请日：2018-08-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Keyvan Sayyah , Pamela R. Patterson , Raymond Sarkissian , Richard Kremer , Oleg Efimov
Abstract: A chip-scale LIDAR (light detection and ranging) system, optical package and LIDAR platform. The system includes a photonic chip, a laser associated with the photonic chip, an optical circulator, and a MEMS scanner. The laser, the optical circulator and the MEMS scanner are collinear. The photonic chip includes an edge coupler. The optical package includes a housing having an aperture, and a platform within the housing. The platform includes the laser, an optical circulator, and MEMS scanner.
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公开(公告)号：US20200088884A1
公开(公告)日：2020-03-19
申请号：US16554090
申请日：2019-08-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Keyvan Sayyah , Oleg Efimov , Biqin Huang , Raymond Sarkissian , James H. Schaffner , David Hammon , Richard Kremer , Timothy J. Talty , Michael Mulqueen , Pamela R. Patterson
Abstract: A vehicle, Lidar system and method of detecting an object is disclosed. The Lidar system includes a photonic chip, and a laser integrated into the photonic chip. The laser has a front facet located at a first aperture of the photonic chip to direct a transmitted light beam into free space. A reflected light beam that is a reflection of the transmitted light beam is received at the photonic chip and a parameter of the object is determined from a comparison of the transmitted light beam and the reflected light beam. A navigation system operates the vehicle with respect to the object based on a parameter of the object.
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公开(公告)号：US11573297B2
公开(公告)日：2023-02-07
申请号：US16554858
申请日：2019-08-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Richard Kremer , Timothy J. Talty , Pamela R. Patterson , Biqin Huang , Michael Mulqueen
IPC: G01S7/481 , G05D1/02 , G01S17/08 , G01S17/931 , G02B6/12 , G01S17/88 , G01S17/04 , G01S17/66 , G01S17/87
Abstract: A vehicle, Lidar system and method of detecting an object is disclosed. The Lidar system includes a photonic chip having an aperture, one or more photodetectors and a circulator. A transmitted light beam generated within the photonic chip exits the photonic chip via the aperture and a reflected light beam enters the photonic chip via the aperture, the reflected light beam being a reflection of the transmitted light beam from the object. The one or more photodetectors measure the parameter of the object from at least the reflected light beam. The circulator integrated into the photonic chip directs the transmitted light beam toward the aperture and directs the reflected light beam from the aperture to the one or more photodetectors. A navigation system navigates the vehicle with respect to the object based on the parameter of the object.
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公开(公告)号：US10914822B2
公开(公告)日：2021-02-09
申请号：US16018716
申请日：2018-06-26
Applicant: GM Global Technology Operations LLC
Inventor： Richard Kremer , Keyvan Sayyah
IPC: G01S7/48 , G01S7/481 , G01S7/4911 , G01S17/58 , G01S17/42 , G01S17/34 , G01S17/86 , G01S17/931 , G01S7/499 , G01S17/02 , G02B6/122 , G02B6/27 , G02B6/42 , H01L23/544 , H01L31/0232 , H01L31/16 , G01S17/00 , G01S17/32 , G01S7/4914 , G01S7/491 , G01S7/497 , B81B7/02 , G02B27/30 , H01S5/125 , G01S7/4913 , G02B6/00
Abstract: A chip-scale lidar system includes a first light source to output a first signal, and a second light source to output a second signal. A transmit beam coupler provides an output signal for transmission that includes a portion of the first signal and a portion of the second signal, and receive beam coupler obtains a received signal resulting from reflection of the output signal by a target. The system includes a first and second set of photodetectors to obtain a first and second set of electrical currents from a first and second set of combined signals including a first and second portion of the received signal. A processor obtains Doppler information about the target from the second set of electrical currents and obtains range information about the target from the first set of electrical currents and the second set of electrical currents.
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公开(公告)号：US11579303B2
公开(公告)日：2023-02-14
申请号：US16554090
申请日：2019-08-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Keyvan Sayyah , Oleg Efimov , Biqin Huang , Raymond Sarkissian , James H. Schaffner , David Hammon , Richard Kremer , Timothy J. Talty , Michael Mulqueen , Pamela R. Patterson
IPC: G01S17/931 , G01S7/48 , G01S17/32 , G01S7/481 , G05D1/02
Abstract: A vehicle, Lidar system and method of detecting an object is disclosed. The Lidar system includes a photonic chip, and a laser integrated into the photonic chip. The laser has a front facet located at a first aperture of the photonic chip to direct a transmitted light beam into free space. A reflected light beam that is a reflection of the transmitted light beam is received at the photonic chip and a parameter of the object is determined from a comparison of the transmitted light beam and the reflected light beam. A navigation system operates the vehicle with respect to the object based on a parameter of the object.
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