Patents Assigned to QISDA Corporation
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Patent number: 11672060Abstract: A light emit diode (LED) driving circuit, an LED driving method and a display device thereof are provided. The LED driving circuit includes: a first LED driving unit for driving first and second color LEDs of the LED circuit. The first LED driving unit includes: a duty cycle circuit generating an enable signal based on at least two color light duty cycle signals, the at least two color light duty cycle signals controlling an emitting cycle of the LED circuit; a current control circuit, generating at least two color light current adjustment signals based the at least two color light duty cycle signals and at least two color light current level signals; and a constant current circuit, for adjusting current levels of the first and the second color LEDs of the LED circuit based on the enable signal and the at least two color light current adjustment signals.Type: GrantFiled: March 31, 2022Date of Patent: June 6, 2023Assignee: Qisda CorporationInventors: Chi-Jen Chen, Chih-Hsiang Wu
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Publication number: 20230169929Abstract: The application discloses an image display device and a control method thereof. The control method for the image display device includes: receiving a first image signal from a host and displaying a frame, a first frame data of the first image signal having a first frequency; determining that the image display device enters a Motion Blur Reduction (MBR) mode and writing a double frequency of a vertical synchronous signal into a storage unit; and informing the host to read the storage unit and alternatively outputting a second frame data and a black-insertion frame data from the host, the second frame data having a second frequency higher than the first frequency.Type: ApplicationFiled: May 20, 2022Publication date: June 1, 2023Applicant: Qisda CorporationInventor: Min-Jye CHEN
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Patent number: 11663993Abstract: A display system includes a host and a display. The host executes a first application and a program. The program sets a first display parameter corresponding to the first application. The display receives a signal provided by the host. The signal includes a desktop image. The first application is operated at a first window on the desktop image. The program outputs the first display parameter to the display. The display sets the first window with the first display parameter and displays, and displays the non-first window area of the desktop image with a preset display parameter.Type: GrantFiled: July 7, 2021Date of Patent: May 30, 2023Assignee: Qisda CorporationInventors: Yu-Fu Fan, Yi-Ming Huang, Yu-Chun Lin
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Patent number: 11655949Abstract: A clamping lamp for clamping a monitor comprises a first light source and a clamping body including a second light source, a first clamping component including a first clamping portion and a lamp connection portion, and a second clamping component including a second clamping portion. The lamp connection portion connects with the first clamping portion and the first light source. The first clamping portion leans against a front surface of the monitor and the second clamping portion leans against a back surface of the monitor when the clamping lamp clamps the monitor so the first light source is located above a top surface of the monitor. The first light source emits light toward a first zone that the front surface faces toward. The second light source emits light toward a second zone that the back surface faces toward.Type: GrantFiled: December 16, 2021Date of Patent: May 23, 2023Assignee: Qisda CorporationInventor: Chih-Lung Huang
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Patent number: 11657480Abstract: For an ultrasound image acquired by an ultrasound detection system, background data with small noises are first filtered. Next, a binary image is generated by performing image binarization on the noise-reduced ultrasound image based on a first threshold value, wherein the binary image contains information associated with the body of high-echo foreground images in the ultrasound image. An output image is generated by performing foreground expansion on the binary image based on the pixel value of the ultrasound image and a second threshold value smaller than the first threshold value, wherein the output image contains information associated with not only the body but also the outline of high-echo foreground images in the ultrasound image. An improved ultrasound image is generated by performing a post-processing on the ultrasound image according to information of foreground and non-foreground region in the output image.Type: GrantFiled: December 23, 2020Date of Patent: May 23, 2023Assignee: Qisda CorporationInventors: Ssu-Hua Huang, Jian-Guo Huang
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Publication number: 20230151926Abstract: A display device includes a screen, a screen support and a fixing module. The screen support is pivotally connected to the screen, and the screen support includes a first end and a second end. The fixing module is detachably connected to the screen support and includes a first sub-component and a second sub-component. The first sub-component has a first surface and a second surface, and the first sub-component is selectively connected to one of the first end and the second end. The second sub-component has a third surface and a fourth surface, and the second sub-component is configured for clamping a board. One of the first surface and the second surface of the first sub-component and one of the third surface and the fourth surface of the second sub-component are detachably connected.Type: ApplicationFiled: January 24, 2022Publication date: May 18, 2023Applicant: Qisda CorporationInventors: Hsin-Che HSIEH, Shih-An LIN, Kuan-Hsu LIN, Hsin-Hung LIN, Yung-Chun SU, Jen-Feng CHEN, Hao-Chun TUNG, Yang-Zong FAN, Chih-Ming CHANG
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Patent number: 11647987Abstract: The invention proposes a method for generating ultrasonic panoramic image and an ultrasonic device. The invention first analyzes the degree of overlap area between two black-and-white images and determines the Doppler signal error of two corresponding color images once the overlap area is large enough. A plurality of black-and-white characteristic images and color characteristic images are then determined from the captured black-and-white images and color images and used for generating a black-and-white panoramic image and a color panoramic image respectively using an image stitching algorithm. The color panoramic image is then overlaid with the black-and-white panoramic image to form an output panoramic image.Type: GrantFiled: December 12, 2018Date of Patent: May 16, 2023Assignee: Qisda CorporationInventors: Wei-Shin Hung, Fang-Bin Liu
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Publication number: 20230148216Abstract: An image display device is provided. The image display device includes a display unit and a backlight module. The display unit is used for displaying pictures in an image frame cycle. The backlight module includes a plurality of light sources of different colors. The image frame cycle is divided into a first interval, a second interval and a third interval in sequence, and the second interval is adjacent to the first interval. The backlight module provides a white light source with a first intensity in the first interval and provides a white light source with a second intensity in the second interval, and the second intensity is smaller than the first intensity. The backlight module is turned off in the third interval.Type: ApplicationFiled: May 27, 2022Publication date: May 11, 2023Applicant: Qisda CorporationInventors: Min-Jye CHEN, Kuang-Hung CHIEN, Chia-Lin CHEN
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Publication number: 20230141544Abstract: A camera assembly adaptable to a display device is provided. The camera assembly comprises a fixed base, a lifting component, an elastic element and a camera module. The fixed base is disposed in the display device and fixed with the display device. The lifting component is movably connected to the fixed base. The elastic element is connected with the lifting component and the fixed base respectively. The camera module is pivotally connected to the lifting component. The elastic element provides elastic force to drive the lifting component to raise the camera module so that the camera module is exposed from the display device, and the camera module pivots relative to the lifting component to tilt the display device.Type: ApplicationFiled: February 25, 2022Publication date: May 11, 2023Applicant: Qisda CorporationInventors: Hung-Hsun LIU, Yi-Ching LIN, Feng-Yu WU
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Publication number: 20230144046Abstract: A backlight module and a display having the same are provided. The backlight module includes a front bezel, a back cover, and a light source. The back cover is disposed opposite to the front bezel. The back cover includes a body and one or more heat dissipation elements. The body has one or more openings corresponding to one or more heat sources. The one or more heat dissipation elements are disposed in the one or more openings, respectively. The light source is disposed between the front bezel and the back cover.Type: ApplicationFiled: April 25, 2022Publication date: May 11, 2023Applicant: Qisda CorporationInventor: Chun-Ting CHEN
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Patent number: 11644739Abstract: A projector includes a light source module, a collimator lens module, a wavelength conversion module, a first dichroic unit and a second dichroic unit. The light source module provides a first beam. The collimator lens module has a first part and a second part. The first beam passes the first part. The wavelength conversion module receives the first beam and includes a reflecting plate and a wavelength conversion layer. The first dichroic unit reflects the first beam. The reflecting plate reflects the first beam to generate a second beam passing the second part. The wavelength conversion layer is excited by the first beam to generate a third beam. The second dichroic unit allows passing of the third beam and a part of the second beam to generate a fourth beam, and reflects the other part of the second beam to generate a fifth beam.Type: GrantFiled: June 21, 2021Date of Patent: May 9, 2023Assignee: Qisda CorporationInventors: Chih-Shiung Chien, Ming-Kuen Lin, Tsung-Hsun Wu
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Publication number: 20230135388Abstract: A light source module includes a first light-splitting element, a second light-splitting element, a first light source, a second light source and a third light source. The first light source emits a first light having a first wavelength to the first light-splitting element in a first optical path direction. The second light source emits a second light having the first wavelength to the first light-splitting element in a second optical path direction perpendicular to the first optical path direction. The third light source emits a third light having a second wavelength to the first and second light-splitting elements in a third optical path direction opposite to the second optical path direction, and the second wavelength is different from the first wavelength. The first light source and the second light source include reflection layers configured to reflect light having the first wavelength.Type: ApplicationFiled: April 27, 2022Publication date: May 4, 2023Applicant: Qisda CorporationInventors: Chih-Shiung CHIEN, Ming-Kuen LIN, Yi-Ling LO, Tsung-Hsun WU
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Publication number: 20230140583Abstract: A light source module includes a first light-splitting element, a second light-splitting element, a first light source, a second light source and a third light source. The first light source is configured to emit first light having a first wavelength to the first light-splitting element in a first optical path direction. The second light source is configured to emit second light having the first wavelength to the second light-splitting element in a second optical path direction opposite to the second optical path direction. The third light source is configured to emit third light having a second wavelength in a third optical path direction substantially perpendicular to the first optical path direction. The first light source includes a first reflective layer, the second light source includes a second reflective layer, wherein the first reflective layer and the second reflective layer are configured to reflect light having the first wavelength.Type: ApplicationFiled: April 27, 2022Publication date: May 4, 2023Applicant: Qisda CorporationInventors: Chih-Shiung CHIEN, Ming-Kuen LIN, Yi-Ling LO, Tsung-Hsun WU
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Publication number: 20230126257Abstract: An electronic system includes a display device, a first host and a second host. The display device includes a network interface port for connecting to an external network, a first port, a second port, a control unit for recording information associated with a designated network bridge target, and a hub unit for controlling the signal transmission between the network interface port, the first port, the second port and the control unit. The first host is coupled to the first port and configured to activate network bridge function when set as the designated network bridge target, thereby connecting to the external network. The second host is coupled to the second port and configured to connect to the external network using the network bridge function via the second port, the hub unit and the first port.Type: ApplicationFiled: January 12, 2022Publication date: April 27, 2023Applicant: QISDA CORPORATIONInventors: Yu-Fu Fan, Chang-Cheng Chen, Wan-Wei Chi
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Publication number: 20230125844Abstract: An ultrasonic transducer array combination includes a casing and first, second, and third linear ultrasonic transducer arrays. The casing includes a first-layer housing, a second-layer housing, and a third-layer housing. The first-layer housing, the second-layer housing, and the third-layer housing are connected to each other in a stacked manner and have first, second, and third mounting surfaces in a z-shaped arrangement, respectively. The first linear ultrasonic transducer array is disposed corresponding to the first mounting surface in the first-layer housing. The second linear ultrasonic transducer array is disposed corresponding to the second mounting surface in the second-layer housing. The third linear ultrasonic transducer array is disposed corresponding to the third mounting surface in the third-layer housing, to make the first, second, and third linear ultrasonic transducer arrays spaced away from each other in the z-shaped arrangement.Type: ApplicationFiled: January 27, 2022Publication date: April 27, 2023Applicant: QISDA CORPORATIONInventors: Ping-Yang Liu, Hsin-Che Hsieh
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Patent number: 11635675Abstract: A laser projector includes a laser light source, a first dichroic mirror, a second dichroic mirror, three light valves and a beam combining module. The laser light source is used to generate a composite polarized beam. The first dichroic mirror is used to receive the composite polarized beam, and separate the composite polarized beam into a first color beam and a relay beam. The second dichroic mirror is used to receive the relay beam, and separate the relay beam into a second color beam and a third color beam. The three light valves are used to modulate the three color beams into three light beams. The beam combining module is used to combine the three light beams to form a multi-color image.Type: GrantFiled: March 3, 2021Date of Patent: April 25, 2023Assignee: Qisda CorporationInventors: Chun-Hao Hu, Tsung-Hsun Wu, Ching-Tze Huang, Ping-Chung Chou
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Patent number: 11635657Abstract: A light source module and a display are provided. The light source module includes a plurality of first light emitting units and a first support structure. For example, the first support structure is formed integrally. The first support structure includes a first surface and a second surface opposite to the first surface. The first surface of the first support structure includes at least one flat surface. The second surface of the first support structure is a first curved surface. The plurality of first light emitting units is disposed on the at least one flat surface of the first surface of the first support structure.Type: GrantFiled: March 11, 2022Date of Patent: April 25, 2023Assignee: Qisda CorporationInventors: Jun-Da Lin, Chun-Ting Chen
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Patent number: 11629845Abstract: A clamp lamp could clamp a screen having a front surface and a rear surface is provided. The clamp lamp includes a first clip, a second clip and a light-emitting module. When the clamp lamp clamps an edge of the screen, the first and second clips abut on the front surface and the rear surface of the screen respectively. The light-emitting module is connected to the first clip and includes a casing, a light-emitting element and a light-reflecting element. The casing has a light outlet. The light-emitting element is disposed in the casing and configured to emit a light and reflect the light to illuminate the front of the front surface through the light outlet. The light-reflecting element has first and second reflecting surfaces connected to each other. The first reflecting surface has several reflecting points, each having a radius of curvature equal to or greater than 25 mm.Type: GrantFiled: January 3, 2022Date of Patent: April 18, 2023Assignee: Qisda CorporationInventor: Chang-Yu Tsai
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Patent number: 11632624Abstract: The present invention provides an audio output device. The audio output device includes a speaker unit, a first plate and a second plate. The speaker unit has a sound-emitting surface, and the sound-emitting surface has a first side and a second side opposite to each other. A first side edge of the first plate corresponds to the first side and is rotatably connected. A second side of the second plate corresponds to the second side and is rotatably connected, and a sound channel corresponding to the speaker unit is formed between the first plate and the second plate, and a sound outlet is formed at an end of the sound channel farthest away from the speaker unit, and a direction pointed by a connection line between a center point of the sound-emitting surface and a center point of the sound outlet is adjustable.Type: GrantFiled: October 26, 2021Date of Patent: April 18, 2023Assignee: Qisda CorporationInventors: Chih-Hung Lin, Hsun-Cheng Cho
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Patent number: 11628047Abstract: A method of operating an intraoral scanner. The intraoral scanner includes an image capturing device and a processor. The method includes the image capturing device sequentially capturing M images along a first dental arch, the processor establishing a first arch model of the first dental arch according to the M images, the image capturing device sequentially capturing N images along a straight-line path from a first anchor to a second anchor on the first dental arch, the processor generating first coordinates of the first anchor and second coordinates of the second anchor according to the N images, and the processor calibrating the first arch model according to the first coordinates and the second coordinates. The first anchor is located at one side of a dental midline of the first dental arch. The second anchor is located at the other side of the dental midline of the first dental arch.Type: GrantFiled: March 3, 2021Date of Patent: April 18, 2023Assignee: Qisda CorporationInventors: Chuang-Wei Wu, Hung-Chih Chan