-
公开(公告)号：US20180341020A1
公开(公告)日：2018-11-29
申请号：US15681468
申请日：2017-08-21
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： David P. MAGEE , Nirmal C. WARKE , Baher S. HAROUN
Abstract: An optical distance measuring system includes a transmitter and a receiver. The transmitter is configured to generate a first optical waveform and direct the first optical waveform toward a first scan point within a field of view (FOV). The receiver is configured to receive the first optical waveform reflected off a first object within the FOV, direct the first optical waveform reflected off the first object to a first photodiode group of an array of photodiode elements, and determine a distance to the first object based on a time of flight of the first optical waveform from the transmitter to the first object and back to the receiver.
-
公开(公告)号：US20170328988A1
公开(公告)日：2017-11-16
申请号：US15592884
申请日：2017-05-11
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： David P. MAGEE , Nirmal C. WARKE , Stephen Aldridge SHAW , Terry Alan BARTLETT , Rick ODEN
CPC classification number: G02B26/0833 , G01S7/4815 , G01S7/4817 , G01S7/484 , G01S17/10
Abstract: An optical distance measuring system includes a first transmitter, a first solid state device, and a receiver. The first transmitter is configured to generate a first optical waveform. The first solid state device is configured to receive the first optical waveform and steer the first optical waveform toward a target object. The receiver is configured to receive the first optical waveform reflected off of the first target object and determine a distance to the first target object based on a time of flight from the transmitter to the first target object and back to the receiver.
-
公开(公告)号：US20140337658A1
公开(公告)日：2014-11-13
申请号：US14272120
申请日：2014-05-07
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： David P. MAGEE
IPC: G06F1/08
CPC classification number: G06F1/14 , G01R23/005 , G06F1/06 , G06F1/08 , G06F11/0751 , G06F11/0754 , G06F11/0757 , G06F11/076 , G06F11/0772 , G06F11/3419 , G06F11/3423 , G06F15/7814 , H03K5/19
Abstract: A method includes reading first and second timer count values from a timer, wherein the first timer count value is associated with a first time point and the second timer count value is associated with a second time point, calculating a difference between the first and the second timer count values, and determining whether the difference is within a range, wherein the range is based on a desired executing frequency to perform a computing task, a variation of the desired executing frequency, and a timer frequency. Further, based on the difference not being within the range, the method includes setting an error flag value to be true and incrementing an error count value.
Abstract translation: 一种方法包括从定时器读取第一和第二定时器计数值，其中第一定时器计数值与第一时间点相关联，并且第二计时器计数值与第二时间点相关联，计算第一和第二计时器之间的差 定时器计数值，以及确定所述差异是否在范围内，其中所述范围基于执行计算任务的期望执行频率，期望执行频率的变化和定时器频率。 此外，基于不在该范围内的差异，该方法包括将错误标志值设置为真，并增加错误计数值。
-
公开(公告)号：US20200212854A1
公开(公告)日：2020-07-02
申请号：US16232494
申请日：2018-12-26
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Miaad SEYED ALIROTEH , Nirmal C. WARKE , David P. MAGEE , Ali KIAEI , Baher S. HAROUN , Ajay SINGHVI
Abstract: A sensor circuit includes a sensor array. The sensor array includes a sensor row that includes a first sensor cell, a second sensor cell, and an output stage of a distributed amplifier circuit. The first sensor cell includes a first photodetector, and a first preamplifier stage of the distributed amplifier circuit. The first preamplifier stage is coupled to the first photodetector, and is configured to amplify a signal received from the first photodetector. The second sensor cell includes a second photodetector, and a second preamplifier stage of the distributed amplifier circuit. The second preamplifier stage is coupled to the second photodetector, and is configured to amplify a signal received from the second photodetector. The output stage of the distributed amplifier circuit is coupled to the first and second sensor cells, and is configured to amplify a signal received from the first preamplifier stage and the second preamplifier stage.
-
Patent Agency Ranking
公开(公告)号：US20190018107A1
公开(公告)日：2019-01-17
申请号：US15649413
申请日：2017-07-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Nirmal C. WARKE , David P. MAGEE , Baher S. HAROUN
Abstract: An optical transmitting system for distance measuring includes a signal generator, a laser diode coupled to the signal generator, and an optics device. The signal generator is configured to generate a first plurality of electrical signals. The laser diode is configured to generate a first plurality of optical waveforms that correspond with the first plurality of electrical signals. The optics device is configured to receive the first plurality of optical waveforms and direct the first plurality of optical waveforms toward a first plurality of scan points that form a scan region within a field of view (FOV). A first signal type, a first signal duration, a first signal amplitude, or a first signal repetition frequency of the first plurality of optical waveforms is based on a first desired range of the first plurality of scan points.
-
公开(公告)号：US20180348345A1
公开(公告)日：2018-12-06
申请号：US15613835
申请日：2017-06-05
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Baher S. HAROUN , Nirmal C. WARKE , David P. MAGEE
Abstract: An optical distance measurement system includes a transmission circuit and a receive circuit. The transmission circuit is configured to generate narrowband intensity modulated light transmission signals over a first band of frequencies and direct the narrowband light transmission signal toward a target object. The receive circuit is configured to receive reflected light off the target object, convert the reflected light into a current signal proportional to the intensity of the reflected light, filter frequencies outside a second band of frequencies from the current signal to create a filtered current signal, and convert the filtered current signal into a voltage signal. The second band of frequencies corresponds with the first band of frequencies.
-
公开(公告)号：US20220397649A1
公开(公告)日：2022-12-15
申请号：US17872383
申请日：2022-07-25
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Baher S. HAROUN , Nirmal C. WARKE , David P. MAGEE
IPC: G01S7/4861 , G01S7/4865 , G01S17/26
Abstract: An optical distance measurement system includes a transmission circuit and a receive circuit. The transmission circuit is configured to generate narrowband intensity modulated light transmission signals over a first band of frequencies and direct the narrowband light transmission signal toward a target object. The receive circuit is configured to receive reflected light off the target object, convert the reflected light into a current signal proportional to the intensity of the reflected light, filter frequencies outside a second band of frequencies from the current signal to create a filtered current signal, and convert the filtered current signal into a voltage signal. The second band of frequencies corresponds with the first band of frequencies.
-
公开(公告)号：US20190018138A1
公开(公告)日：2019-01-17
申请号：US15649493
申请日：2017-07-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Nirmal C. WARKE , David P. MAGEE , Baher S. HAROUN
IPC: G01S17/10
Abstract: An optical time of flight system includes a transmitter and a receiver. The transmitter is configured to generate a modulation signal having a modulation signal frequency that varies as a function of time, generate an optical waveform with amplitude modulation corresponding to the modulation signal, and direct the optical waveform toward a field of view (FOV). The receiver is configured to receive the optical waveform reflected off of an object within the FOV and determine a distance to the object based on a time of flight from the transmitter to the object and back to the receiver.
-
公开(公告)号：US20170328990A1
公开(公告)日：2017-11-16
申请号：US15592921
申请日：2017-05-11
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： David P. MAGEE , Nirmal C. WARKE , Stephen Aldridge SHAW , Terry Alan BARTLETT , Rick ODEN
CPC classification number: G01S7/4817 , G01S7/484 , G01S17/10 , G01S17/42 , G01S17/936
Abstract: An optical distance measuring system includes a transmitter, a beam steering device, and a receiver. The transmitter is configured to generate a first plurality of optical waveforms. The beam steering device is configured to steer the first plurality of optical waveforms to a first plurality of scan points that form a non-uniform scan region within a field of view (FOV). The receiver is configured to receive the first plurality of optical waveforms reflected off of a first plurality of target objects within the non-uniform scan region and determine a distance to each target object of the first plurality of target objects based on a time of flight from the transmitter to each target object of the first plurality of target objects and back to the receiver.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.013 seconds)
