DETAILED ACTION
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 § 103
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 (i.e., changing from AIA to pre-AIA ) 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.
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 1-8 and 10 are rejected under 35 U.S.C. 103 as being unpatentable over Takamori et al. (hereinafter Takamori, US 2013/0141025 A1) in view of Xu et al. (hereinafter Xu, US 2018/0111487 A1), further in view of Sakumoto (JP 2020115716A).
For claim 1, Takamori discloses a motor control detector (Fig. 1 of Takamori discloses a motor control detector 100, 200 – see Takamori, Fig. 1, paragraphs [0017]-[0019]), wherein the motor control detector is configured to drive a stator coil of a motor (Fig. 1 of Takamori discloses the motor control detector 100, 200 which is configured to drive a stator coil 300 of a motor – see Takamori, Fig. 1, paragraph [0018]), wherein the stator coil includes a first terminal and a second terminal (Fig. 1 of Takamori discloses the stator coil 300 which includes a first terminal Ut and a second terminal Vt – see Takamori, Fig. 1, paragraph [0019], lines 2-3), wherein the motor control detector comprises:
a controller, configured to generate a plurality of driving signals (Fig. 1 of Takamori discloses a controller 120-140, 400 and 200, configured to generate a plurality of driving signals UH, VH, UL, VL – see Takamori, Fig. 1, paragraphs [0018], [0021] and [0028]-[0030]);
a switch circuit, coupled to the controller, the first terminal and the second terminal of the stator coil, and configured to be conducted according to the driving signals to transmit a current of a power supply to the stator coil (Fig. 1 of Takamori discloses a switch circuit 110, coupled to the controller 120-140, 400 and 200, the first terminal Ut and the second terminal Vt of the stator coil 300, and configured to be conducted according to the driving signals UH, VH, UL, VL to transmit a current I1 of a power supply Vcc to the stator coil 300 – see Takamori, Fig. 1, paragraphs [0019]-[0020], [0023]-[0026] and [0029]-[0030]), so as to generate an induced current according to a change of a magnetic field of the stator coil (Takamori discloses a single phase motor inherently including a stator coil 300 and a rotor. Takamori is silent for discloses generating an induced current according to a change of a magnetic field of the stator coil. However, it is well-known in art that an induced current is generated in the stator coils according to a change of a magnetic field of the stator coil when the rotor rotates relatively to the stator coil. For supporting, Xu discloses generating an induced current according to a change of a magnetic field of the stator coil (see Xu, paragraph [0017], lines 7-8 and [0033], lines 13-32. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to include “to generate an induced current according to a change of a magnetic field of the stator coil” as obviously teaching of Takamori or a teaching of Takamori to incorporate teaching of Xu for purpose of ensuring efficient operation and performance), and
a current measurement circuit, coupled to the switch circuit and the controller, and configured to receive the induced current, wherein the controller is configured to adjust the driving signals according to the induced current so as to control the switch circuit according to the driving signals to form circuit loops to drive the stator coil (Figs. 1-2 of Takamori disclose a current measurement circuit 21, 22, coupled to the switch circuit 110 and the controller 400, and configured to receive the induced current, wherein the controller 400 is configured to adjust the driving signals according to the induced current so as to control the switch circuit 110 according to the driving signals to form circuit loops to drive the stator coil 300 – see Takamori, Figs. 1-4, paragraphs [0039], last line, [0041]-[0046]).
Takamori in view of Xu discloses a controller which is silent for deternining whether a change value of the induced current exceeds a current preset threshold wherein if the change value of the induced current is determined to exceed the current preset threshold wherein the controller is further configured to conduct a first one of a forward circuit and a reverse circuit according to the driving signals to commutate the stator coil.
However, Sakumoto discloses deternining whether a change value of the induced current exceeds a current preset threshold wherein if the change value of the induced current is determined to exceed the current preset threshold wherein the controller is further configured to conduct a first one of a forward circuit and a reverse circuit according to the driving signals to commutate the stator coil (see Sakunoto, Figs. 1, 6 and 10, paragraphs [0056] and [0067]).
Therefore, it would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to modify teaching of Takamori in view of Xu to incorporate teaching of Sakumoto for purpose of reducing damages of component in motor control system.
For claim 2, Takamori in view of Xu, further in view of Sakumoto disclose the motor control detector of claim 1, wherein the switch circuit (Fig. 1 of Takamori discloses the switch circuit 110) comprises:
the forward circuit (Figs. 1-2 of Takamori disclose a forward circuit including first transistor 11, stator coil 300 and second transistor 14 – see Takamori, Fig. 2, paragraphs [0034], lines 1-7, and [0054]-[0055]):
a first transistor (Figs. 1-2 of Takamori disclose a first transistor 11), comprising:
a first terminal, coupled to the power supply (Figs. 1-2 of Takamori disclose a first terminal Vcct, coupled to the power supply Vcc – see Takamori, Fig. 1, paragraphs [0025] and [0026], lines 1-10);
a second terminal, coupled to the first terminal of the stator coil (Fig. 1 of Takamori discloses a second terminal P1, coupled to the first terminal Ut of the stator coil 300 – see Takamori, Fig. 1, paragraph [0026], lines 1-10); and
a control terminal, coupled to the controller (Fig. 1 of Takamori discloses a control terminal, coupled to the controller 120 – see Takamori, Fig. 1, paragraph [0030]); and
a second transistor (Figs. 1-2 of Takamori disclose a first transistor 14), comprising:
a first terminal, coupled to the second terminal of the stator coil (Figs. 1-2 of Takamori disclose a first terminal P2, coupled to the second terminal Vt of the stator coil 300 – see Takamori, Fig. 1, paragraph [0026], lines 10-19);
a second terminal, coupled to the current measurement circuit (Figs. 1-2 of Takamori disclose a second terminal, coupled to the current measurement circuit 21, 22 – see Takamori, Figs. 1-2, paragraph [0034], lines 1-7); and
a control terminal, coupled to the controller (Fig. 1 of Takamori discloses a control terminal, coupled to the controller 130 – see Takamori, Fig. 1, paragraph [0029]).
For claim 3, Takamori in view of Xu, further in view of Sakumoto disclose the motor control detector of claim 2, wherein the switch circuit (Fig. 1 of Takamori discloses the switch circuit 110) further comprises:
the reverse circuit (Figs. 1-2 of Takamori discloses an reverse circuit including third transistor 12, stator coil 300 and fourth transistor 13 – see Takamori, Fig. 2, paragraphs [0037], lines 1-5, and [0054]-[0055]):
a third transistor (Figs. 1-2 of Takamori disclose a first transistor 12), comprising:
a first terminal, coupled to the power supply (Figs. 1-2 of Takamori disclose a first terminal Vcct, coupled to the power supply Vcc – see Takamori, Fig. 1, paragraphs [0025] and [0026], lines 10-19);
a second terminal, coupled to the second terminal of the stator coil (Fig. 1 of Takamori discloses a second terminal P2, coupled to the second terminal Vt of the stator coil 300 – see Takamori, Fig. 1, paragraph [0026], lines 10-19); and
a control terminal, coupled to the controller (Fig. 1 of Takamori discloses a control terminal, coupled to the controller 120 – see Takamori, Fig. 1, paragraph [0030]);
a fourth transistor (Figs. 1-2 of Takamori disclose a first transistor 13), comprising:
a first terminal, coupled to the first terminal of the stator coil (Figs. 1-2 of Takamori disclose a first terminal P1, coupled to the first terminal Ut of the stator coil 300 – see Takamori, Fig. 1, paragraph [0026], lines 1-10);
a second terminal, coupled to the current measurement circuit (Figs. 1-2 of Takamori disclose a second terminal, coupled to the current measurement circuit 21, 22 – see Takamori, Figs. 1-2, paragraphs [0037] and [0054]); and
a control terminal, coupled to the controller (Fig. 1 of Takamori discloses a control terminal, coupled to the controller 130 – see Takamori, Fig. 1, paragraph [0029]).
For claim 4, Takamori in view of Xu, further in view of Sakumoto disclose the motor control detector of claim 3, wherein the switch circuit comprises a H-bridge circuit (Fig. 1 of Takamori discloses the switch circuit 110 which comprises a H-bridge circuit – see takamori, Fig. 1, paragraph [0024]).
For claim 5, Takamori in view of Xu, further in view of Sakumoto disclose the motor control detector of claim 3, wherein the controller is further configured to conduct the first one of the forward circuit and the reverse circuit according to the driving signals, so as to make the stator coil generate a magnetic field to attract a rotor of the motor to a specified position (see Takamori, Figs. 2-5, paragraphs [0028], [0034] and [0037], and see Xu, Fig. 3, paragraph [0033], lines 13-20).
For claim 6, Takamori in view of Xu, further in view of Sakumoto disclose the motor control detector of claim 5, wherein the controller is further configured to conduct a second one of the forward circuit and the reverse circuit according to the driving signals, so as to make the stator coil generate a reverse magnetic field corresponding to the magnetic field to rotate the rotor of the motor (see Takamori, Figs. 2-5, paragraphs [0028], [0034]-[0035] and [0037], and see Xu, Fig. 3, paragraph [0033], lines 13-32).
For claim 7, Takamori in view of Xu, further in view of Sakumoto disclose the motor control detector of claim 6, wherein the controller is further configured to alternately conduct the forward circuit and the reverse circuit according to the driving signals, so as to sequentially commutate the stator coils according to the induced current to continuously rotate the rotor of the motor (see Takamori, Figs. 2-5, paragraphs [0028]-[0029], [0034] and [0037]; and see Xu, Frig. 3, paragraph [0033]).
For claim 8, Takamori in view of Xu, further in view of Sakumoto disclose the motor control detector of claim 7, wherein the controller is further configured to conduct the first transistor of the forward circuit and the third transistor of the reverse circuit according to the driving signals, or to conduct the second transistor of the forward circuit and the fourth transistor of the reverse circuit according to the driving signals, so as to make the stator coil consume energy through the switch circuit to stop the rotor of the motor (see Takamori, Figs. 3-4, paragraphs [0034] and [0037]).
For claim 10, Takamori in view of Xu, further in view of Sakumoto disclose the motor control detector of claim 8, wherein if the change value of the induced current is determined not to exceed the current preset threshold, wherein the controller is further configured to conduct the second one of the forward circuit and the reverse circuit according to the driving signals to maintain the reverse magnetic of the stator coil (see Sakunoto, Figs. 1, 8 and 9, paragraphs [0065] and [0066]).
Allowable Subject Matter
Claims 11-20 are allowed.
Claims 9-10 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.
Response to Amendment
The amended claim 1 appears broad because it includes the allowable subject matter of canceled claim 9 without including all of the limitations of the intervening claims. The examiner has to make further search. Currently, the set of claims 1-8 read onto teaching of Takamori in view of Xu, further in view of Sakumoto.
Conclusion
THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a).
A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action.
Any inquiry concerning this communication or earlier communications from the examiner should be directed to THAI T DINH whose telephone number is (571)270-3852. The examiner can normally be reached (571)270-3852.
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/THAI T DINH/Primary Examiner, Art Unit 2837
Jun 27, 2026
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