Prosecution Insights
Last updated: April 19, 2026
Application No. 18/757,055

MODE TRANSITION ON A DUAL-RESOLUTION DISPLAY

Non-Final OA §102§103
Filed
Jun 27, 2024
Examiner
NGUYEN, ANH TUAN V
Art Unit
2619
Tech Center
2600 — Communications
Assignee
DELL PRODUCTS, L.P.
OA Round
1 (Non-Final)
73%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
92%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allow Rate
355 granted / 489 resolved
+10.6% vs TC avg
Strong +19% interview lift
Without
With
+19.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
38 currently pending
Career history
527
Total Applications
across all art units

Statute-Specific Performance

§101
8.3%
-31.7% vs TC avg
§103
67.6%
+27.6% vs TC avg
§102
4.9%
-35.1% vs TC avg
§112
12.3%
-27.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 489 resolved cases

Office Action

§102 §103
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. Claim Objections Claim 9 is objected to because of the following informalities: Claim 9 contains an unnecessary space between “a timing controller configured to” and the colon. Appropriate correction is required. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-2, 4-5, 9-10, 12, 15-16, and 18-19 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Tann et al. (US 2016/0267881). Regarding claim 1, Tann teaches: A method comprising: storing, by a processor (Tann Fig. 8: processor 802), data associated with an image to a frame buffer in response to detecting a signal to switch to a display mode (Tann [0029]-[0030] “a change indication can be provided to the TCON … a final image frame is received from the host device and stored in a memory” [0022] “the host device 204 can provide a first signal to a host interface 210 of the TCON 206 indicating that the resolution of the video stream to the TCON 206 is going to change”); reading the data associated with the image from the frame buffer after the storing the image subsequent to the detecting the signal (Tann [0029] “the TCON is caused to enter a panel self refresh (PSR) mode, in which the TCON can drive a display panel using the final image frame, or an image frame stored in a memory of the TCON” [Driving the display panel meets the reading.]); providing the data associated with the image to a display panel for display during a transition to the display mode (Tann [0017] “During the PSR mode, the TCON will effectively be driving a display panel of the display device with the image frame stored in the memory until the host device indicates to the TCON that the video transition has completed”); maintaining the image in the display panel until the transition to the display mode is complete (Tann [0017] “During the PSR mode, the TCON will effectively be driving a display panel of the display device with the image frame stored in the memory until the host device indicates to the TCON that the video transition has completed”); and updating the image in the display panel with another image from video data associated with the display mode (Tann [0029] “a second video stream, different than the first video stream, can be provided to the TCON. The second video stream can be associated with a different resolution or different video dimensions compared to the first video stream”). Regarding claim 2, Tann teaches: The method of claim 1, further comprising generating the signal in response to receiving a command to switch to the display mode (Tann [0022] “the host device 204 can provide a first signal to a host interface 210 of the TCON 206 indicating that the resolution of the video stream to the TCON 206 is going to change” [0017] “a resolution of the video stream can change as a result of a user selecting a setting for a video stream”). Regarding claim 4, Tann teaches: The method of claim 1, wherein the image is a last known image of video data currently displayed (Tann [0030] “a final image frame is received from the host device and stored in a memory”). Regarding claim 5, Tann teaches: The method of claim 1, wherein the reading of the image from the frame buffer is initiated after the storing of the image in the frame buffer is finished (Tann [0029] “the TCON is caused to enter a panel self refresh (PSR) mode, in which the TCON can drive a display panel using the final image frame, or an image frame stored in a memory of the TCON”). Claims 9-10 and 12 recite limitation(s) similar in scope to those of claims 1-2 and 4, respectively, and are rejected for the same reason(s). Tann further teaches a display panel; a frame buffer; and a timing controller (Tann Fig. 2A: display panel 208 and timing controller 206; [0018] “a TCON that includes a frame buffer (e.g., a memory)”). Claims 15-16 and 18-19 recite limitation(s) similar in scope to those of claims 1-2 and 4-5, respectively, and are rejected for the same reason(s). Tann further teaches a non-transitory computer-readable medium to store instructions (Tann Fig. 8: ROM 820 and/or RAM 822). 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. Claim(s) 3, 6-7, 11, 13-14, 17, and 20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Tann et al. (US 2016/0267881). Regarding claim 3, Tann is silent regarding: The method of claim 1, wherein the signal is analog. However, the concept and advantages of an analog signal are well known and expected in the art (Official Notice). It would have been obvious that the signal of Tann is analog for continuous-time signaling. Regarding claim 6, Tann teaches/suggests: The method of claim 1, wherein the frame buffer is included in a timing controller includes a frame buffer (e.g., a memory)”). Tann is silent regarding a timing controller package. However, the concept and advantages of a timing controller package are well known and expected in the art (Official Notice). It would have been obvious that the timing controller of Tann is included in such a package for packaging it. Regarding claim 7, Tann teaches/suggests: The method of claim 1, wherein the frame buffer is included in a timing controller a timing controller die. However, the concept and advantages of a timing controller die are well known and expected in the art (Official Notice). It would have been obvious that the timing controller of Tann is included in such a die for packaging it. Claims 11 and 13-14 recite limitation(s) similar in scope to those of claims 3 and 6-7, respectively, and are rejected for the same reason(s). Claims 17 and 20 recite limitation(s) similar in scope to those of claims 3 and 6, respectively, and are rejected for the same reason(s). Claim(s) 8 is/are rejected under 35 U.S.C. 103 as being unpatentable over Tann et al. (US 2016/0267881) in view of Kondoh et al. (US 2011/0187735). Regarding claim 8, Tann does not teach/suggest: The method of claim 1, further comprising reading display information associated with the display mode from an electronically erasable programmable read-only memory. Kondoh, however, teaches/suggests reading display information associated with the display mode from an electronically erasable programmable read-only memory (Kondoh [0292] “the color adjustment parameters for each video display mode may be previously recorded in a memory such as the EEPROM 82, so that the MPU 81 automatically selects the color adjustment parameters supporting the video display mode”). Before the effective filing date of the claimed invention, it would have been obvious for one of ordinary skill in the art to modify parameters associated with the display resolution (the display mode) of Tann to be stored in the EEPROM of Kondoh to support it. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure: US 2013/0162682 – timing controller with frame buffer US 2016/0210034 – switch display mode US 2022/0130320 – display switching Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANH-TUAN V NGUYEN whose telephone number is 571-270-7513. The examiner can normally be reached on M-F 9AM-5PM ET. 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, JASON CHAN can be reached on 571-272-3022. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /ANH-TUAN V NGUYEN/ Primary Examiner, Art Unit 2619
Read full office action

Prosecution Timeline

Jun 27, 2024
Application Filed
Jan 16, 2026
Non-Final Rejection — §102, §103 (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
73%
Grant Probability
92%
With Interview (+19.2%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 489 resolved cases by this examiner. Grant probability derived from career allow rate.

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