Abstract: Disclosed are methods, systems, device, and other implementations, including a method that includes receiving an audio signal representation, detecting in the received audio signal representation, using a first learning model, one or more silent intervals with reduced foreground sound levels, determining based on the detected one or more silent intervals an estimated full noise profile corresponding to the audio signal representation, and generating with a second learning model, based on the received audio signal representation and on the determined estimated full noise profile, a resultant audio signal representation with a reduced noise level.

Abstract: Disclosed are methods, systems, device, and other implementations, including a method that includes receiving an audio signal representation, detecting in the received audio signal representation, using a first learning model, one or more silent intervals with reduced foreground sound levels, determining based on the detected one or more silent intervals an estimated full noise profile corresponding to the audio signal representation, and generating with a second learning model, based on the received audio signal representation and on the determined estimated full noise profile, a resultant audio signal representation with a reduced noise level.

Abstract: Provide are a transfer system and a transfer method. The transfer system is configured to transfer chips and includes a temporary substrate and a transfer device. The temporary substrate has a first surface and a second surface opposite to each other. There is a first angle between the second surface and the first surface. The transfer device has a transfer substrate and a plurality of transfer heads provided on the transfer substrate. The transfer substrate has a third surface and a fourth surface opposite to each other, and there is a second angle between the fourth surface and the third surface. The plurality of transfer heads are located at intervals on the fourth surface, and a side surface of the above-mentioned transfer head that faces away from the transfer substrate is parallel to the fourth surface.

Abstract: The present disclosure relates to the technical field of light-emitting diodes, in particular to an LED display convenient to be repaired and a repair method thereof. The LED display comprises: a planarization layer and a circuit layer, the planarization layer being provided with first and second previously prepared electrodes for being connected to a standby LED chip; the first and second previously prepared electrodes are respectively in communication with a thin-film transistor and a power line ground terminal which are in the circuit layer; a groove is provided in the planarization layer, the first and second previously prepared electrodes respectively extend along a sidewall of the groove, and are respectively connected to first and second contact electrodes at the bottom of the groove, an LED COB is accommodated in the groove, and two electrodes in the LED COB are respectively connected to the first and second contact electrodes; and the top of the LED COB does not exceed the opening of the groove.

Abstract: The present disclosure discloses an optical projection imaging system and method. Through additionally installing an angle controller on a Light Emitting Diode (LED) chip, and through adjusting and controlling an emitting angle of light emitted by the LED chip every preset time period by the angle controller, different images projected in different emitting angles are obtained, and a whole image is spliced by the different images projected in the different emitting angles and projected to a projection screen. In addition, the present disclosure further discloses an optical projection imaging method.

Abstract: A detection method and a detection structure for a display backplane are provided. The method includes the following. The display backplane is provided. The display backplane is provided with multiple contact electrode pairs each of which includes an input electrode and an output electrode. The detection structure is provided. The detection structure includes multiple light-emitting elements and multiple detection circuits. Each two of the detection circuits are connected with at least one of the light-emitting elements and configured to conduct an electrical signal to the at least one of the light-emitting elements connected. The detection structure is assembled on the display backplane A drive electrical signal is outputted to the display backplane. The contact electrode pair to which the input electrode connected with the detection circuit belongs is determined as a fault point on condition that the light-emitting element does not emit light.

Abstract: A detection method and a detection structure for a display backplane is provided in the disclosure. The detection method includes the following. The display backplane is provided. The display backplane is provided with a contact electrode pair. A detection structure is provided. The detection structure includes a light-emitting element and a detection circuit configured to conduct an electrical signal to the light-emitting element. The detection structure is assembled on the display backplane to connect the detection circuit to the contact electrode pair. A drive electrical signal is outputted to the contact electrode pair. If the light-emitting element does not emit light, the contact electrode pair is determined as a fault point.

Abstract: A mass transfer apparatus, method, and device are provided. The mass transfer apparatus includes a rotating disk, a drive member, a first transfer head, a second transfer head, and a third transfer head. The rotating disk has a first surface and a second surface opposite to the first surface. The first surface is divided into a first region, a second region, a third region, and a fourth region. The drive member is connected to the second surface and configured to drive the rotating disk to move or rotate. The first transfer head is located in the first region, the second transfer head is located in the second region, and the third transfer head is located in the third region. The first transfer head and the second transfer head is symmetric about the first line, and the second transfer head and the third transfer head is symmetric about the second line.

Abstract: The present application relates to the field of display manufacturing, and more particularly, to a light emitting diode (LED) display apparatus. The LED display apparatus includes a display backplane, first LED chips, second LED chips, and third LED chips. The display backplane is provided with first bosses and second bosses. The first LED chips are disposed on the first bosses, the second LED chips are disposed on the second bosses. The first bosses each have a height of H11 greater than a height H22 of the second bosses. The present application also relates to a mass transfer method and a storage medium.

Abstract: An LED display, a method for repairing the same, and an LED chip are provided. The LED display includes a planarization layer and a circuit layer. The planarization layer is provided with a first spare electrode and a second spare electrode on an upper surface of the planarization layer. The first spare electrode is coupled with a thin film transistor in the circuit layer and the second spare electrode is coupled with a power line grounding terminal in the circuit layer. The planarization layer defines a groove inside which a diode chip is installed. The groove is provided with a first contact electrode and a second contact electrode at a bottom thereof. Each of two electrodes of the diode chip is coupled with a respective one of the first contact electrode and the second contact electrode.

Abstract: A cogeneration unit and wind power joint heating system and a scheduling method therefor. The joint heating system comprises a coal-fired steam-extraction condensing-steam cogeneration unit (A), a wind turbine generator unit (B), an air conditioner heat pump (108) parallel-connected to the coal-fired steam-extraction condensing-steam cogeneration unit (A) and to the wind turbine generator unit (B) via a power cable network (113), and a hot water heating radiator (110) connected to the coal-fired steam-extraction condensing-steam cogeneration unit (A) via a heating pipe network (114). The joint heating system also comprises an integrated scheduling control device (115), a first remote centralized controller (1121), a second remote centralized controller (1122), and a third remote centralized controller (1123).

Abstract: A method for on-line diagnosing gradually-changing fault of electronic current transformers comprises the following steps collecting output signals of electronic transformers of a whole transformer substation, calculating theoretical instantaneous values of the current at the tail ends of power transmission lines and on secondary sides of transformers at every moment, comparing the theoretical instantaneous values with the corresponding collected values, calculating residual errors of the electronic current transformers at the head and tail ends of each power transmission line and the primary and the secondary sides of each transformer respectively, judging whether gradually-changing fault occurs with the electronic current transformers by comparing the residual errors with preset threshold values, and simultaneously performing Kirchhoff detection by injecting current into a busbar to position a fault transformer.

Abstract: A cogeneration unit and wind power joint heating system and a scheduling method therefor. The joint heating system comprises a coal-fired steam-extraction condensing-steam cogeneration unit (A), a wind turbine generator unit (B), an air conditioner heat pump (108) parallel-connected to the coal-fired steam-extraction condensing-steam cogeneration unit (A) and to the wind turbine generator unit (B) via a power cable network (113), and a hot water heating radiator (110) connected to the coal-fired steam-extraction condensing-steam cogeneration unit (A) via a heating pipe network (114). The joint heating system also comprises an integrated scheduling control device (115), a first remote centralized controller (1121), a second remote centralized controller (1122), and a third remote centralized controller (1123).