Prosecution Insights
Last updated: April 19, 2026
Application No. 18/488,398

VISIBLE LIGHT SENSOR CONFIGURED FOR DETECTION OF GLARE CONDITIONS

Non-Final OA §103§112
Filed
Oct 17, 2023
Examiner
BRYANT, REBECCA CAROLE
Art Unit
2877
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Lutron Technology Company LLC
OA Round
1 (Non-Final)
64%
Grant Probability
Moderate
1-2
OA Rounds
3y 4m
To Grant
96%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allow Rate
347 granted / 543 resolved
-4.1% vs TC avg
Strong +32% interview lift
Without
With
+31.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
30 currently pending
Career history
573
Total Applications
across all art units

Statute-Specific Performance

§101
2.3%
-37.7% vs TC avg
§103
39.1%
-0.9% vs TC avg
§102
24.9%
-15.1% vs TC avg
§112
29.1%
-10.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 543 resolved cases

Office Action

§103 §112
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 10 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. With respect to claim 10, the limitation that the photo sensing circuit consumes less power than the visible light sensing circuit is indefinite. The limitation is claiming a result not a structure. It is unclear what the scope of the claim is since the power efficiency of an element is variable based on many things, some of which are structure and some are how it is used. Additionally, it is unclear if “less power” is over a lifetime, over a specific time range, at any given moment or an alternative. Clarification is required. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, and 21 are rejected under 35 U.S.C. 103 as being unpatentable over Casey et al. U.S. Publication 2018/0252035 in view of Veskovic U.S. Patent #7,950,827. With respect to claim 2, Casey discloses a visible light sensor configured for glare detection comprising: A visible light sensing circuit configured to record at least one image to detect a glare condition (P.0053, second visible light sensor 182) A control circuit configured to enable the visible light sensing circuit to record the at least one image (P.0053) Process the at least one image recorded by the visible light sensing circuit to detect the glare condition (P.0053) However, Casey fails to disclose enabling and processing the image based on an illuminance signal. Veskovic discloses a window treatment for controlling glare comprising: A photo sensing circuit configured to generate an illuminance signal (Col.10, l 21-26, 65-67, photosensors 145) A control circuit configured to receive the illuminance signal from the photo sensing circuit (Col.10, l 21-22, 65-67, control circuit = central processor) Determining the likelihood of detecting the glare condition based on the illuminance signals (Col.16, l 65- Col.17, l 5) It would have been obvious to one of ordinary skill in the art at the time of the invention to first use the illuminance signals of Veskovic to determine if glare is a potential problem before doing Casey’s image analysis to locate the glare since image analysis is more time and energy intensive, so preventing unnecessary analyses would save both. With respect to claim 11 and 17, Casey discloses a visible light sensor for glare detection method comprising: Recording at least one image to detect a glare condition (P.0053, second visible light sensor 182) Recording the at least one image (P.0053) Processing the at least one image recorded by the visible light sensing circuit to detect the glare condition (P.0053) However, Casey fails to disclose enabling and processing the image based on an illuminance signal. Veskovic discloses a window treatment for controlling glare comprising: Generating an illuminance signal (Col.10, l 21-26, 65-67, photosensors 145) Determining the likelihood of detecting the glare condition based on the illuminance signals (Col.16, l 65- Col.17, l 5) It would have been obvious to one of ordinary skill in the art at the time of the invention to first use the illuminance signals of Veskovic to determine if glare is a potential problem before doing Casey’s image analysis to locate the glare since image analysis is more time and energy intensive, so preventing unnecessary analyses would save both. With respect to claim 3, 4, 12, 13, 18, and 19, Casey in view of Veskovic discloses all of the limitations as applied to claim 2, 11 and 17 above. However, Casey fails to disclose the control circuit being configured to determine a preset illuminance value based on the illuminance signal and to take an image when the illuminance value exceeds a threshold. Veskovic discloses: The control circuit configured to determine a preset illuminance value based on the illuminance signal (Col.16, l 65-67, preset illuminance value = “dead-band”) It would have been obvious to one of ordinary skill in the art at the time of the invention to use a preset illuminance value, or expected value, for the photosensors based on the photosensors in order to create a threshold for change as in Veskovic applied to the image analysis of Casey for the reasons described above, since having a threshold for illuminance values measured prior to image analysis will result in fewer images collected and analyzed, saving time and energy. With respect to claim 5, 6, 14, 15, 20, and 21, Casey in view of Veskovic discloses all of the limitations as applied to claims 2, 3, 11, 12, and 17 above. In addition, Casey discloses: The visible light sensing circuit is configured to periodically record images (P.0040) However, Casey fails to disclose that the recording of images is based on the illuminance signal and that the images are not recorded when the illuminance does not indicate the likelihood of glare. This has been addressed above with respect to claim 2 that it would have been obvious to one of ordinary skill in the art at the time of the invention to record images only when the illuminance of Veskovic indicates a necessity to do in order to save time and energy. With respect to claim 7 and 16, Casey in view of Veskovic discloses all of the limitations as applied to claim 2 and 11 above. In addition, Casey discloses: The control circuit is configured to process/ Processing the at least one image recorded by the visible light sensing circuit to detect the glare condition at a processing frequency (P.0067) With respect to claim 10, Casey in view of Veskovic discloses all of the limitations as applied to claim 2 above. However, Casey and Veskovic are silent with respect to the power efficiency of the photo sensing circuit compared to the visible light sensing circuit. It would have been obvious to one of ordinary skill in the art at the time of the invention as a design effective variable to select a power efficiency for each component in a device based on costs and priorities. One of ordinary skill would recognize that selecting one circuit to consume less power than another depends on many variables and manners in which those circuits are used and it would be within that skill to select which one consumes less power based on the design choices. Allowable Subject Matter Claims 8 and 9 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to REBECCA CAROLE BRYANT whose telephone number is (571)272-9787. The examiner can normally be reached M-F, 12-4 pm. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Kara Geisel can be reached at 571-272-2416. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. REBECCA CAROLE. BRYANT Examiner Art Unit 2877 /REBECCA C BRYANT/Primary Examiner, Art Unit 2877
Read full office action

Prosecution Timeline

Oct 17, 2023
Application Filed
Dec 01, 2023
Response after Non-Final Action
Apr 03, 2026
Non-Final Rejection — §103, §112 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
64%
Grant Probability
96%
With Interview (+31.7%)
3y 4m
Median Time to Grant
Low
PTA Risk
Based on 543 resolved cases by this examiner. Grant probability derived from career allow rate.

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