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 .
Priority
Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55.
Information Disclosure Statement
The information disclosure statement (IDS) submitted on 11/06/2025. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner.
Specification
The title of the invention is not descriptive. A new title is required that is clearly indicative of the invention to which the claims are directed.
The following title is suggested: DIRECT CURRENT (DC-DC) CONVERTER FOR DISPLAY DEVICE REDUCING POWER CONSUMPTION AND HEAT GENERATION
Claim Objections
Claims 1-4, 11-14 and 20 are objected to because of the following informalities:
As per claim 1, the limitation “wherein the first switching element and the second switching element are connected to the first inductor in the first driving mode and the second driving mode” should be “wherein the first switching element and the second switching element are connected to the first inductor in the first driving mode and in the second driving mode”.
As per claim 2, the limitation “wherein, in the first driving mode and the second driving mode, when the panel current is less than or equal to the reference current, the panel current flows to the master converter, and
wherein, in the first driving mode and the second driving mode, when the panel current is greater than the reference current, the panel current flows divided into the master converter and the slave converter” should be
“wherein, in the first driving mode and in the second driving mode, when the panel current is less than or equal to the reference current, the panel current flows to the master converter, and
wherein, in the first driving mode and in the second driving mode, when the panel current is greater than the reference current, the panel current flows divided into the master converter and the slave converter”
As per claim 3, the limitation “wherein, in the first driving mode and the second driving mode, when the panel current is less than or equal to the reference current, the master converter is configured to generate a first inductor current which flows in the first inductor” should be “wherein, in the first driving mode and in the second driving mode, when the panel current is less than or equal to the reference current, the master converter is configured to generate [[a]] the first inductor current which flows in the first inductor”.
As per claim 4, the limitation “wherein, in the first driving mode, when the panel current is greater than the reference current, the master converter is configured to generate the first inductor current, and the slave converter is configured to generate a second inductor current which flows in the second inductor” should be “wherein, in the first driving mode, when the panel current is greater than the reference current, the master converter is configured to generate the first inductor current, and the slave converter is configured to generate [[a]] the second inductor current which flows in the second inductor”.
As per claim 11, the limitation “wherein, in a first driving mode, the first switch is turned on and the second switch is turned off such that the master converter is connected to a first inductor and the slave converter is connected to a second inductor, and
wherein the slave converter includes a second outputer configured to alternately turn on a third switching element and a fourth switching element to generate a second inductor current which flows in the second inductor in the first driving mode, and to alternately turn on the third switching element and the fourth switching element to generate at least part of the first inductor current in the second driving mode,
wherein the first switching element and the second switching element are connected to the first inductor in the first driving mode and the second driving mode” should be
“wherein, in a first driving mode, the first switch is turned on and the second switch is turned off such that the master converter is connected to [[a]] the first inductor and the slave converter is connected to [[a]] the second inductor, and
wherein the slave converter includes a second outputer configured to alternately turn on a third switching element and a fourth switching element to generate a second inductor current which flows in the second inductor in the first driving mode, and to alternately turn on the third switching element and the fourth switching element to generate at least part of the first inductor current in the second driving mode,
wherein the first switching element and the second switching element are connected to the first inductor in the first driving mode and in the second driving mode”.
As per claim 12, the limitation “wherein, in the first driving mode and the second driving mode, when the panel current is less than or equal to the reference current, the panel current flows to the master converter, and
wherein, in the first driving mode and the second driving mode, when the panel current is greater than the reference current, the panel current flows divided into the master converter and the slave converter” should be
“wherein, in the first driving mode and in the second driving mode, when the panel current is less than or equal to the reference current, the panel current flows to the master converter, and
wherein, in the first driving mode and in the second driving mode, when the panel current is greater than the reference current, the panel current flows divided into the master converter and the slave converter”.
As per claim 13, the limitation “wherein, in the first driving mode and the second driving mode, when the panel current is less than or equal to the reference current, the master converter is configured to generate a first inductor current which flows in the first inductor” should be “wherein, in the first driving mode and in the second driving mode, when the panel current is less than or equal to the reference current, the master converter is configured to generate [[a]] the first inductor current which flows in the first inductor”.
As per claim 14, the limitation “wherein, in the first driving mode, when the panel current is greater than the reference current, the master converter is configured to generate the first inductor current, and the slave converter is configured to generate a second inductor current which flows in the second inductor” should be “wherein, in the first driving mode, when the panel current is greater than the reference current, the master converter is configured to generate the first inductor current, and the slave converter is configured to generate [[a]] the second inductor current which flows in the second inductor”.
As per claim 20, the limitation “wherein, in a first driving mode, the first switch is turned on and the second switch is turned off such that the master converter is connected to a first inductor and the slave converter is connected to a second inductor” should be “wherein, in a first driving mode, the first switch is turned on and the second switch is turned off such that the master converter is connected to [[a]] the first inductor and the slave converter is connected to [[a]] the second inductor”, “wherein the first switching element and the second switching element are connected to the first inductor in the first driving mode and the second driving mode” should be “wherein the first switching element and the second switching element are connected to the first inductor in the first driving mode and in the second driving mode”.
Appropriate correction is required.
Double Patenting
The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the claims at issue are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); and In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969).
A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on a nonstatutory double patenting ground provided the reference application or patent either is shown to be commonly owned with this application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP §§ 706.02(l)(1) - 706.02(l)(3) for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b).
The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/forms/. The filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to http://www.uspto.gov/patents/process/file/efs/guidance/eTD-info-I.jsp.
Claims 1-20 are rejected on the ground of nonstatutory obviousness-type double patenting as being unpatentable over claims 9-19 of US Patent No. US 12519393. Although the conflicting claims are not identical, they are not patentably distinct from each other because the following reasons.
Claim 1 of the Present Application
Claim 9 of US Patent No. 12519393
A direct current to direct current (DC-DC) converter comprising:
a master converter configured to operate to generate a panel power voltage based on an input voltage regardless of a panel current; and
a slave converter configured to operate to generate the panel power voltage with the master converter based on the input voltage when the panel current is greater than a reference current,
wherein, in a first driving mode, the first switch is turned on and the second switch is turned off such that the master converter is connected to a first inductor and the slave converter is connected to a second inductor,
wherein the master converter is connected to a first inductor, and the slave converter is selectively connected to a second inductor through a first switch disposed between the slave converter and the second inductor, and is selectively connected to the first inductor through a second switch disposed between the slave converter and the first inductor,
wherein, in a second driving mode, the first switch is turned off and the second switch is turned on such that the master converter and the slave converter are connected to the first inductor,
wherein the master converter includes a first outputer configured to alternately turn on a first switching element and a second switching element to generate a first inductor current which flows in the first inductor in the first driving mode and at least part of the first inductor current in the second driving mode,
wherein the slave converter includes a second outputer configured to alternately turn on a third switching element and a fourth switching element to generate a second inductor current which flows in the second inductor in the first driving mode, and to alternately turn on the third switching element and the fourth switching element to generate at least part of the first inductor current in the second driving mode,
wherein the first switching element and the second switching element are connected to the first inductor in the first driving mode and the second driving mode, and
wherein the third switching element and the fourth switching element are connected to the first inductor in the first driving mode and are connected to the second inductor in the second driving mode.
A direct current to direct current (DC-DC) converter comprising:
a master converter configured to operate to generate a panel power voltage based on an input voltage regardless of a panel current; and
a slave converter configured to operate to generate the panel power voltage with the master converter based on the input voltage when the panel current is greater than a reference current,
wherein, in a first driving mode,
the master converter is connected to a first inductor and the slave converter is connected to a second inductor,
wherein, in a second driving mode, the master converter and the slave converter are connected to the first inductor,
wherein the master converter includes a first outputer configured to alternately turn on a first switching element and a second switching element to generate a first inductor current which flows in the first inductor in the first driving mode and at least part of the first inductor current in the second driving mode,
wherein the slave converter includes a second outputer configured to alternately turn on a third switching element and a fourth switching element to generate a second inductor current which flows in the second inductor in the first driving mode, and to alternately turn on the third switching element and the fourth switching element to generate at least part of the first inductor current in the second driving mode,
wherein the first switching element and the second switching element are connected to the first inductor in the first driving mode and the second driving mode, and
wherein the third switching element and the fourth switching element are connected to the first inductor in the first driving mode and are connected to the second inductor in the second driving mode.
Claims 2 and 12 of the Present Application
The DC-DC converter (display device) of claim 1 (claim 11), wherein, in the first driving mode and the second driving mode, when the panel current is less than or equal to the reference current, the panel current flows to the master converter, and
wherein, in the first driving mode and the second driving mode, when the panel current is greater than the reference current, the panel current flows divided into the master converter and the slave converter.
Claim 10 of US Patent No. 12519393
The DC-DC converter of claim 9, wherein, in the first driving mode and the second driving mode, when the panel current is less than or equal to the reference current, the panel current flows to the master converter, and
wherein, in the first driving mode and the second driving mode, when the panel current is greater than the reference current, the panel current flows divided into the master converter and the slave converter.
Claims 3 and 13 of the Present Application
The DC-DC converter (display device) of claim 1 (claim 11), wherein, in the first driving mode and the second driving mode, when the panel current is less than or equal to the reference current, the master converter is configured to generate a first inductor current which flows in the first inductor.
Claim 11 of US Patent No. 12519393
The DC-DC converter of claim 9, wherein, in the first driving mode and the second driving mode, when the panel current is less than or equal to the reference current, the master converter is configured to generate a first inductor current which flows in the first inductor.
Claims 4 and 14 of the Present Application
The DC-DC converter (display device) of claim 3 (claim 13), wherein, in the first driving mode, when the panel current is greater than the reference current, the master converter is configured to generate the first inductor current, and the slave converter is configured to generate a second inductor current which flows in the second inductor, and
wherein, in the second driving mode, when the panel current is greater than the reference current, the master converter and the slave converter are configured to generate the first inductor current together.
Claim 12 of US Patent No. 12519393
The DC-DC converter of claim 11, wherein, in the first driving mode, when the panel current is greater than the reference current, the master converter is configured to generate the first inductor current, and the slave converter is configured to generate a second inductor current which flows in the second inductor, and
wherein, in the second driving mode, when the panel current is greater than the reference current, the master converter and the slave converter are configured to generate the first inductor current together.
Claims 5 and 15 of the Present Application
The DC-DC converter (display device) of claim 1 (claim 11), wherein, in the second driving mode, when the panel current is greater than the reference current, the master converter and the slave converter are connected in parallel.
Claim 13 of US Patent No. 12519393
The DC-DC converter of claim 9, wherein, in the second driving mode, when the panel current is greater than the reference current, the master converter and the slave converter are connected in parallel.
Claims 6 and 16 of the Present Application
The DC-DC converter (display device) of claim 5 (claim 15), wherein, in the second driving mode, when the master converter and the slave converter are connected in parallel, a resultant resistance of the master converter and the slave converter is smaller than an internal resistance of each of the master converter and the slave converter.
Claim 14 of US Patent No. 12519393
The DC-DC converter of claim 13,wherein, in the second driving mode, when the master converter and the slave converter are connected in parallel, a resultant resistance of the master converter and the slave converter is smaller than an internal resistance of each of the master converter and the slave converter.
Claims 7 and 17 of the Present Application
The DC-DC converter (display device) of claim 1 (claim 11), further comprising:
a feedback voltage generator configured to divide the panel power voltage to generate a feedback voltage; and
an error signal generator configured to generate an error signal based on a voltage difference between the feedback voltage and a reference voltage.
Claim 15 of US Patent No. 12519393
The DC-DC converter of claim 9, further comprising:
a feedback voltage generator configured to divide the panel power voltage to generate a feedback voltage; and
an error signal generator configured to generate an error signal based on a voltage difference between the feedback voltage and a reference voltage.
Claims 8 and 18 of the Present Application
The DC-DC converter (display device) of claim 1 (claim 11), wherein the master converter further includes:
a first switching controller configured to generate a first switching signal which controls the first switching element and a second switching signal which controls the second switching element in the first driving mode, and to generate the first switching signal, the second switching signal, and a third switching signal which controls the third switching element and corresponds to the first switching signal and a fourth switching signal which controls the fourth switching element and corresponds to the second switching signal in the second driving mode; and
a first sensing current sensor configured to sense a first sensing current which flows through the first switching element and generate a first sensing voltage which corresponds the first sensing current in the first driving mode, and to sense the first sensing current and a second sensing current which flows through the third switching element and generate the first sensing voltage which corresponds to sum of the first sensing current and the second sensing current in the second driving mode, and
wherein the slave converter further includes:
a second switching controller configured to generate the third switching signal and the fourth switching signal in the first driving mode; and
a second sensing current sensor configured to sense the second sensing current and generate a second sensing voltage which corresponds to the second sensing current in the first driving mode.
Claim 16 of US Patent No. 12519393
The DC-DC converter of claim 9, wherein the master converter further includes:
a first switching controller configured to generate a first switching signal which controls the first switching element and a second switching signal which controls the second switching element in the first driving mode, and to generate the first switching signal, the second switching signal, and a third switching signal which controls the third switching element and corresponds to the first switching signal and a fourth switching signal which controls the fourth switching element and corresponds to the second switching signal in the second driving mode; and
a first sensing current sensor configured to sense a first sensing current which flows through the first switching element and generate a first sensing voltage which corresponds the first sensing current in the first driving mode, and to sense the first sensing current and a second sensing current which flows through the third switching element and generate the first sensing voltage which corresponds to sum of the first sensing current and the second sensing current in the second driving mode, and
wherein the slave converter further includes:
a second switching controller configured to generate the third switching signal and the fourth switching signal in the first driving mode; and
a second sensing current sensor configured to sense the second sensing current and generate a second sensing voltage which corresponds to the second sensing current in the first driving mode.
Claims 9 and 19 of the Present Application
The DC-DC converter (display device) of claim 8 (claim 18), wherein the master converter further includes:
a first overcurrent protector configured to determine whether the first sensing current is an overcurrent to generate a first enable signal which controls the first switching controller in the first driving mode, and to determine whether the sum of the first sensing current and the second sensing current is the overcurrent to generate the first enable signal in the second driving mode;
a first adder configured to add a slope voltage to the first sensing voltage to generate a first sensing slope voltage; and
a first comparator configured to compare the error signal and the first sensing slope voltage to generate a first signal and output the first signal to the first switching controller, and
wherein the slave converter further includes:
a second overcurrent protector configured to determine whether the second sensing current is the overcurrent to generate a second enable signal which controls the second switching controller in the first driving mode;
a second adder configured to add the slope voltage to the second sensing voltage to generate a second sensing slope voltage; and
a second comparator configured to compare the error signal and the second sensing slope voltage to generate a second signal and output the second signal to the second switching controller.
Claim 17 of US Patent No. 12519393
The DC-DC converter of claim 16, wherein the master converter further includes:
a first overcurrent protector configured to determine whether the first sensing current is an overcurrent to generate a first enable signal which controls the first switching controller in the first driving mode, and to determine whether the sum of the first sensing current and the second sensing current is the overcurrent to generate the first enable signal in the second driving mode;
a first adder configured to add a slope voltage to the first sensing voltage to generate a first sensing slope voltage; and
a first comparator configured to compare the error signal and the first sensing slope voltage to generate a first signal and output the first signal to the first switching controller, and
wherein the slave converter further includes:
a second overcurrent protector configured to determine whether the second sensing current is the overcurrent to generate a second enable signal which controls the second switching controller in the first driving mode;
a second adder configured to add the slope voltage to the second sensing voltage to generate a second sensing slope voltage; and
a second comparator configured to compare the error signal and the second sensing slope voltage to generate a second signal and output the second signal to the second switching controller.
Claim 10 of the Present Application
The DC-DC converter of claim 1, wherein a voltage of a common node of the third switching element and the fourth switching element is sensed such that a shutdown operation is performed.
Claim 18 of US Patent No. 12519393
The DC-DC converter of claim 9, wherein a voltage of a common node of the third switching element and the fourth switching element is sensed such that a shutdown operation is performed.
Claim 11 of the Present Application
A display device comprising:
a display panel including pixels; and
a direct current to direct current (DC-DC) converter configured to output a panel power voltage to the display panel,
wherein the DC-DC converter includes:
a master converter configured to operate to generate the panel power voltage based on an input voltage regardless of a panel current; and
a slave converter configured to operate to generate the panel power voltage with the master converter based on the input voltage when the panel current is greater than a reference current,
wherein, in a first driving mode, the first switch is turned on and the second switch is turned off such that the master converter is connected to a first inductor and the slave converter is connected to a second inductor, and
wherein the master converter is connected to a first inductor, and the slave converter is selectively connected to a second inductor through a first switch disposed between the slave converter and the second inductor, and is selectively connected to the first inductor through a second switch disposed between the slave converter and the first inductor,
wherein, in a second driving mode, the first switch is turned off and the second switch is turned on such that the master converter and the slave converter are connected to the first inductor,
wherein the master converter includes a first outputer configured to alternately turn on a first switching element and a second switching element to generate a first inductor current which flows in the first inductor in the first driving mode and at least part of the first inductor current in the second driving mode,
wherein the slave converter includes a second outputer configured to alternately turn on a third switching element and a fourth switching element to generate a second inductor current which flows in the second inductor in the first driving mode, and to alternately turn on the third switching element and the fourth switching element to generate at least part of the first inductor current in the second driving mode,
wherein the first switching element and the second switching element are connected to the first inductor in the first driving mode and the second driving mode, and
wherein the third switching element and the fourth switching element are connected to the first inductor in the first driving mode and are connected to the second inductor in the second driving mode.
Claim 19 of US Patent No. 12519393
A display device comprising:
a display panel including pixels; and
a direct current to direct current (DC-DC) converter configured to output a panel power voltage to the display panel,
wherein the DC-DC converter includes:
a master converter configured to operate to generate the panel power voltage based on an input voltage regardless of a panel current; and
a slave converter configured to operate to generate the panel power voltage with the master converter based on the input voltage when the panel current is greater than a reference current,
wherein, in a first driving mode, the master converter is connected to a first inductor and the slave converter is connected to a second inductor, and
wherein, in a second driving mode, the master converter and the slave converter are connected to the first inductor,
wherein the master converter includes a first outputer configured to alternately turn on a first switching element and a second switching element to generate a first inductor current which flows in the first inductor in the first driving mode and at least part of the first inductor current in the second driving mode,
wherein the slave converter includes a second outputer configured to alternately turn on a third switching element and a fourth switching element to generate a second inductor current which flows in the second inductor in the first driving mode, and to alternately turn on the third switching element and the fourth switching element to generate at least part of the first inductor current in the second driving mode,
wherein the first switching element and the second switching element are connected to the first inductor in the first driving mode and the second driving mode, and
wherein the third switching element and the fourth switching element are connected to the first inductor in the first driving mode and are connected to the second inductor in the second driving mode.
Claim 20 of the Present Application
An electronic device comprising:
a display panel including pixels;
a direct current to direct current (DC-DC) converter configured to output a panel power voltage to the display panel;
a driving controller configured to control the DC-DC converter; and a processor configured to the driving controller,
wherein the DC-DC converter includes:
a master converter configured to operate to generate the panel power voltage based on an input voltage regardless of a panel current; and
a slave converter configured to operate to generate the panel power voltage with the master converter based on the input voltage when the panel current is greater than a reference current,
wherein, in a first driving mode, the first switch is turned on and the second switch is turned off such that the master converter is connected to a first inductor and the slave converter is connected to a second inductor, and
wherein the master converter is connected to a first inductor, and the slave converter is selectively connected to a second inductor through a first switch disposed between the slave converter and the second inductor, and is selectively connected to the first inductor through a second switch disposed between the slave converter and the first inductor,
wherein, in a second driving mode, the first switch is turned off and the second switch is turned on such that the master converter and the slave converter are connected to the first inductor,
wherein the master converter includes a first outputer configured to alternately turn on a first switching element and a second switching element to generate a first inductor current which flows in the first inductor in the first driving mode and at least part of the first inductor current in the second driving mode,
wherein the slave converter includes a second outputer configured to alternately turn on a third switching element and a fourth switching element to generate a second inductor current which flows in the second inductor in the first driving mode, and to alternately turn on the third switching element and the fourth switching element to generate at least part of the first inductor current in the second driving mode,
wherein the first switching element and the second switching element are connected to the first inductor in the first driving mode and the second driving mode, and
wherein the third switching element and the fourth switching element are connected to the first inductor in the first driving mode and are connected to the second inductor in the second driving mode.
Claim 19 of US Patent No. 12519393
A display device comprising:
a display panel including pixels; and
a direct current to direct current (DC-DC) converter configured to output a panel power voltage to the display panel,
wherein the DC-DC converter includes:
a master converter configured to operate to generate the panel power voltage based on an input voltage regardless of a panel current; and
a slave converter configured to operate to generate the panel power voltage with the master converter based on the input voltage when the panel current is greater than a reference current,
wherein, in a first driving mode, the master converter is connected to a first inductor and the slave converter is connected to a second inductor, and
wherein, in a second driving mode, the master converter and the slave converter are connected to the first inductor,
wherein the master converter includes a first outputer configured to alternately turn on a first switching element and a second switching element to generate a first inductor current which flows in the first inductor in the first driving mode and at least part of the first inductor current in the second driving mode,
wherein the slave converter includes a second outputer configured to alternately turn on a third switching element and a fourth switching element to generate a second inductor current which flows in the second inductor in the first driving mode, and to alternately turn on the third switching element and the fourth switching element to generate at least part of the first inductor current in the second driving mode,
wherein the first switching element and the second switching element are connected to the first inductor in the first driving mode and the second driving mode, and
wherein the third switching element and the fourth switching element are connected to the first inductor in the first driving mode and are connected to the second inductor in the second driving mode.
Although the conflicting claims are not identical, they are not patentably distinct from each other because claims 1-20 of the Present Application anticipates claims 9-19 of US Patent No. US 12519393 since pending claims 1-20 are fully contained in the patented claims 9-19 of US Patent No. US 12519393.
Conclusion
Any inquiry concerning this communication or earlier communications from the examiner should be directed to Nelson Lam whose telephone number is (571)272-8044. The examiner can normally be reached 1pm-9pm.
If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Ke Xiao can be reached at 571 272-7776. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300.
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/Nelson Lam/Examiner, Art Unit 2627
/KE XIAO/Supervisory Patent Examiner, Art Unit 2627
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