-
公开(公告)号：US20220342202A1
公开(公告)日：2022-10-27
申请号：US17240483
申请日：2021-04-26
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Robert Floyd Payne , James Norman Hall
Abstract: A calibration circuit providing a programmable voltage generator that is selectively connectable to a first capacitor plate of a capacitive structure to supply a voltage thereto. A reference voltage generator is coupled to the output of the programmable voltage generator and generates a reference voltage. A comparator receives the reference voltage and a discharging voltage from the capacitive structure during a discharge period and, based on those inputs, generates a signal that is output to a digital controller. A constant current source is selectively connectable to the capacitive structure to generate a constant current. Based on the output of the comparator, the constant current, and a count representing a time during which the discharging voltage decreases, the digital controller measures capacitance to calibrate a movable mirror of the capacitive structure. During calibration, the digital controller controls the programmable voltage generator and a second capacitor plate of the capacitive structure.
-
公开(公告)号：US10371939B2
公开(公告)日：2019-08-06
申请号：US15836536
申请日：2017-12-08
Applicant: Texas Instruments Incorporated
Inventor： William Craig McDonald , James Norman Hall , Adam Joseph Fruehling
IPC: G02B26/08
Abstract: One or more apparatus providing over-travel protection for actuators are disclosed. An example apparatus includes a mirror; a first plate coupled to the mirror; and a support post coupled the first plate, the support post structured to prevent the mirror from moving within a threshold distance to a second plate.
-
公开(公告)号：US12158574B2
公开(公告)日：2024-12-03
申请号：US17472947
申请日：2021-09-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Patrick Ian Oden , James Norman Hall
Abstract: In an example, a system includes a digital micromirror device (DMD). The DMD includes a hinge and one or more spring tips coupled to the hinge, where the hinge is configured to tilt toward a raised address electrode. The DMD includes a micromirror including a recessed mirror shelf and a reflective surface, where the recessed mirror shelf is coupled to the hinge, and where the recessed mirror shelf is configured to contact at least one of the one or more spring tips responsive to the hinge tilting toward the raised address electrode.
-
公开(公告)号：US12135415B2
公开(公告)日：2024-11-05
申请号：US17398907
申请日：2021-08-10
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： William Craig McDonald , James Norman Hall , Kelly Jay Taylor , Song Zheng
Abstract: A system includes a hinge structure. The hinge structure includes four support posts and four hinges, each hinge coupled to an edge of a support post and to a plate of the hinge structure, where each hinge includes two 90° turns. The system also includes a mirror coupled to the hinge structure and an electrode structure coupled to the hinge structure.
-
公开(公告)号：US20230350141A1
公开(公告)日：2023-11-02
申请号：US17731606
申请日：2022-04-28
Applicant: Texas Instruments Incorporated
Inventor： Adam Joseph Fruehling , James Norman Hall , Argyrios Dellis , Terry Alan Bartlett , Patrick Ian Oden
IPC: G02B6/42
CPC classification number: G02B6/4227 , G02B6/4249 , G02B6/4225
Abstract: A method of aligning optical signals in a fiber optic switching device with one or two phase light modulators (PLMs) includes configuring the phase elements of the PLMs with first initial settings, to direct an optical signal from an input fiber to an output fiber. An initial position displacement of a center of the signal image from a center of the output fiber is estimated. Corrected settings for the phase elements are calculated so that when the corrected settings are applied to the phase elements, a corrected signal image of the optical signal has a corrected position displacement from the center of the output fiber that is less than the initial position displacement. A fiber optic switching device has processing circuitry and a memory component configured to execute steps of the method of aligning the optical signals.
-
Patent Agency Ranking
公开(公告)号：US20250047065A1
公开(公告)日：2025-02-06
申请号：US18925461
申请日：2024-10-24
Applicant: Texas Instruments Incorporated
Inventor： James Norman Hall , Terry Alan Bartlett , William Craig McDonald
Abstract: Described examples include a device includes a first post and a spring supported by the first post. The device also includes a second post coupled to the spring and a mirror on the second post. Additionally, the device includes a movable layer coupled to the spring and to the mirror and a fixed layer, where the movable layer is between the fixed layer and the mirror. The mirror has a width and a length and the length is greater than the width. The mirror is configured to move based on a voltage difference between the movable layer and the fixed layer.
-
公开(公告)号：US20250044576A1
公开(公告)日：2025-02-06
申请号：US18924372
申请日：2024-10-23
Applicant: Texas Instruments Incorporated
Inventor： Patrick Ian Oden , James Norman Hall
Abstract: In accordance with at least one example of the description, a microelectromechanical systems (MEMS) device includes a hinge. The MEMS device also includes a spring tip. Additionally, the MEMS device includes a top layer including a recessed shelf and a top surface, where the recessed shelf is coupled to the hinge.
-
公开(公告)号：US11977220B2
公开(公告)日：2024-05-07
申请号：US17111309
申请日：2020-12-03
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： William Craig McDonald , James Norman Hall , Terry Alan Bartlett
CPC classification number: G02B26/0833 , B81B3/0056 , B81B3/0078 , B81B3/0086 , B81B7/0022 , G02B6/352 , B81B2201/04 , G02B5/08 , G02F2203/12
Abstract: A digital micromirror device comprises an array of micromirror pixels, the array comprising a first micromirror pixel and a second micromirror pixel. The first micromirror pixel comprises a hinge, where the hinge is configured to tilt toward a first raised address electrode and toward a second raised address electrode. The first micromirror pixel also comprises a first micromirror coupled to the hinge, where the first micromirror has a sculpted edge. The second micromirror pixel comprises a second micromirror, where a first gap between a first point on the sculpted edge and a nearest point to the first point on the second micromirror is larger than a second gap between a second point on the sculpted edge and a nearest point to the second point on the second micromirror.
-
公开(公告)号：US11713243B2
公开(公告)日：2023-08-01
申请号：US17899537
申请日：2022-08-30
Applicant: Texas Instruments Incorporated
Inventor： Patrick Ian Oden , James Norman Hall
IPC: B81C1/00 , G03B21/00 , B81B3/00 , H04N13/365 , H04N5/74
CPC classification number: B81C1/00492 , B81B3/0018 , B81C1/00404 , G03B21/008 , B81B2201/042 , H04N5/7458 , H04N13/365 , Y10S359/904
Abstract: In one example, a method comprises forming a first layer on a substrate surface, forming an opening in the first layer, forming a second layer on the first layer and in the opening, and forming a photoresist layer on the second layer, in which the photoresist layer has a first curved surface over a first part of the first layer and over the opening. The method further comprises etching the photoresist layer and a second part of the second layer over the first part of the first layer to form a second curved surface on the second part of the second layer, and forming a mirror element and a support structure in the second layer, including by etching a third part of the second layer and removing the first layer.
-
公开(公告)号：US11256083B2
公开(公告)日：2022-02-22
申请号：US16233812
申请日：2018-12-27
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： William Craig McDonald , James Norman Hall
Abstract: A microelectromechanical actuator for a light beam steering device is provided that includes memory cells coupled to at least one electronic circuitry component and electrode segments coupled to a respective one of the memory cells via the at least one electronic circuitry component. A flexible metal layer having support pillars is on the electrode segments. Flexible beams are attached to the support pillars and a movable electrode attaches to the flexible beams. A mirror is attached to the movable electrode. When one or more of the electrode segments is activated, the mirror is displaced a distance to steer a light beam output from a light source in a direction.
-
-
-
-
-
-
-
-
-
Search Results
21
records
(took 0.032 seconds)
