Patents by Inventor Shih-Feng Chen
Shih-Feng Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250031929Abstract: A cleaning system and a cleaning method are provided. The cleaning system includes a main body, an air suctioning device, a light source, an optical sensor, a memory and a processing unit. The air suctioning device includes an air flow passage and a fan-motor assembly that is disposed in the air flow passage and generates a suction force to suction outside air through the air flow passage. The light source emit light to the air flow passage. The optical sensor captures a plurality of successive image frames from the air flow passage. The processing unit is configured to: obtain first and second image frames from the successive image frames; compare the first image frame with the second image frame to identify dust particles; obtain a particle feature of the dust particles; and determine a current cleanness condition according to the particle feature.Type: ApplicationFiled: October 14, 2024Publication date: January 30, 2025Inventors: SHIH-FENG CHEN, HAN-LIN CHIANG, NING SHYU
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Publication number: 20250017138Abstract: A weeder robot includes a movable carrier and a blade module assembled to the movable carrier. The movable carrier includes a map creating module and a control module that is electrically coupled to the blade module and the map creating module. The map creating module includes an infrared unit and a vision sensing unit. The infrared unit can emit and receive an infrared light. The vision sensing unit can obtain an image information in a non-contact manner. The movable carrier can be used to move in a court, so that the map creating module can generate a three-dimensional (3D) court map through cooperation between the infrared unit and the vision sensing unit. When the weeder robot performs a maintenance process, the control module drives the blade module to weed a portion of a lawn higher than a predetermined height according to the 3D court map.Type: ApplicationFiled: July 10, 2023Publication date: January 16, 2025Inventors: YEN-MIN CHANG, SHIH-FENG CHEN, HAN-LIN CHIANG
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Patent number: 12194515Abstract: An inverting and cleaning device includes a positioning mechanism, an inverting mechanism, and a cleaning mechanism. The positioning mechanism is adapted to move a drum to a first position. The inverting mechanism includes a holding member. When the drum is located at the first position, the holding member clamps a drum body of the drum and inverts the drum to a second position where an opening on a top of the drum faces downward. The cleaning mechanism includes a cleaning tool. When the drum is located at the second position, the cleaning tool enters the drum through the opening of the drum for cleaning an inside of the drum.Type: GrantFiled: February 24, 2022Date of Patent: January 14, 2025Assignee: TRUSVAL TECHNOLOGY CO., LTD.Inventors: Shih-Feng Chen, Shih-Pao Chien
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Patent number: 12156632Abstract: A cleaning system and a cleaning method are provided. The cleaning system includes a main body, an air suctioning device, a light source, an optical sensor, a memory and a processing unit. The air suctioning device includes an air flow passage and a fan-motor assembly that is disposed in the air flow passage and generates a suction force to suction outside air through the air flow passage. The light source emit light to the air flow passage. The optical sensor captures a plurality of successive image frames from the air flow passage. The processing unit is configured to: obtain first and second image frames from the successive image frames; compare the first image frame with the second image frame to identify dust particles; obtain a particle feature of the dust particles; and determine a current cleanness condition according to the particle feature.Type: GrantFiled: September 1, 2022Date of Patent: December 3, 2024Assignee: PIXART IMAGING INC.Inventors: Shih-Feng Chen, Han-Lin Chiang, Ning Shyu
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Patent number: 12066522Abstract: A navigation device applied to a wireless identification tag includes a movable signal transceiver and an operation processor. The movable signal transceiver is adapted to transmit a detection signal and receive an actuation signal relevant to the detection signal. The operation processor is electrically connected to the movable signal transceiver. The operation processor is adapted to analyze the actuation signal to acquire relative position between the movable signal transceiver and the wireless identification tag, and generate a motion parameter in accordance with the relative position for moving the movable signal transceiver.Type: GrantFiled: January 13, 2022Date of Patent: August 20, 2024Assignee: PixArt Imaging Inc.Inventors: Shih-Feng Chen, Han-Lin Chiang, Ning Shyu
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Patent number: 12033331Abstract: A method for detecting motion information includes the following steps. First, a pixel array is provided for detecting an image of a measured object located in a first distance range or in a second distance range, and the pixel array includes a plurality of invisible image sensing pixels and a plurality of visible image sensing pixels. Then, image detection is conducted within the first distance range by using the invisible image sensing pixels to output a plurality of invisible images. Next, the image detection is conducted within the second distance range by using the visible image sensing pixels to output a plurality of visible images. Then, the plurality of invisible images and the plurality of visible images are analyzed by using a processing unit, so as to obtain motion information of the measured object. A pixel array for detecting motion information and an image sensor are also provided.Type: GrantFiled: June 28, 2021Date of Patent: July 9, 2024Assignee: PIXART IMAGING INC.Inventors: Han-Chang Lin, Shu-Sian Yang, Shih-Feng Chen
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Patent number: 11979738Abstract: A method of wireless communication locator station to be disposed at specific location includes: detecting rotation angle information of client-based portable device, carried or worn by user, according to specific wireless communication standard between wireless communication locator station and client-based portable device when client-based portable device is within signal range of wireless communication locator station; generating head pose direction estimation according to calculated rotation angle information; and when head pose direction estimation indicates that a user turns face towards wireless communication locator station, sending packet signal from wireless communication locator station to server-based portable device, successfully paired with and security-connected with client-based portable device, so that server-based portable device can transfer packet signal to client-based portable device after receiving packet signal.Type: GrantFiled: March 29, 2023Date of Patent: May 7, 2024Assignee: PixArt Imaging Inc.Inventors: Shih-Feng Chen, Yen-Min Chang
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Publication number: 20240074631Abstract: A cleaning system and a cleaning method are provided. The cleaning system includes a main body, an air suctioning device, a light source, an optical sensor, a memory and a processing unit. The air suctioning device includes an air flow passage and a fan-motor assembly that is disposed in the air flow passage and generates a suction force to suction outside air through the air flow passage. The light source emit light to the air flow passage. The optical sensor captures a plurality of successive image frames from the air flow passage. The processing unit is configured to: obtain first and second image frames from the successive image frames; compare the first image frame with the second image frame to identify dust particles; obtain a particle feature of the dust particles; and determine a current cleanness condition according to the particle feature.Type: ApplicationFiled: September 1, 2022Publication date: March 7, 2024Inventors: SHIH-FENG CHEN, HAN-LIN CHIANG, NING SHYU
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Patent number: 11834318Abstract: An automatic liquid filling system includes a machine assembly, a gripping unit, and a controlling unit. The machine assembly has a filling zone for receiving at least one container. The container has an opening. The machine assembly includes a plurality of filling nozzles in the filling zone. The gripping unit in the machine assembly includes a moving track and a robotic arm. The robotic arm is movably disposed on the moving track. The controlling unit in the machine assembly is electrically connected to the gripping unit. When the container is located in the filling zone, the controlling unit controls the robotic arm to move along the moving track and to pick up one of the filling nozzles to fill the container through the opening of the container. A method of filling liquid is provided herewith.Type: GrantFiled: May 19, 2022Date of Patent: December 5, 2023Assignee: TRUSVAL TECHNOLOGY CO., LTD.Inventors: Shih-Feng Chen, Shih-Pao Chien
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Patent number: 11778427Abstract: A voice communication method between two or more wearable electronic devices via Bluetooth communication includes: providing the two or more wearable electronic devices paired with a mobile phone device; determining whether a distance between the two or more wearable electronic devices is larger than a distance threshold; controlling a wearable electronic device to enter a walkie-talkie mode to start a walkie-talkie conversation with one or more other wearable electronic devices when the distance is larger than the distance threshold; and during the walkie-talkie mode using the such wearable electronic device to send voice data from the wearable electronic device to one or more other wearable electronic devices to make the other wearable electronic device(s) to receive and play the voice data in the walkie-talkie mode for different user(s).Type: GrantFiled: September 9, 2020Date of Patent: October 3, 2023Assignee: PixArt Imaging Inc.Inventors: Shih-Feng Chen, Yen-Min Chang
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Publication number: 20230282023Abstract: There is provided an electronic device capable of improving the difficulty of breaking a digital electronic lock and the accuracy of gesture control. The electronic device is unlocked according to gestures of a single hand or two hands, an operation hand, a gesture position, a staying time of gesture and a gesture variation of a user. The electronic device further improves the accuracy of gesture control in conjunction with an accessory pattern, temperature sensing and space information of a wearable device. The present disclosure further provides an electronic device that identifies legitimacy of moving the electronic device according to a variation sequence of 3-axis accelerations of an accelerometer.Type: ApplicationFiled: May 11, 2023Publication date: September 7, 2023Inventors: NING SHYU, SHIH-FENG CHEN, HAN-LIN CHIANG, YEN-MIN CHANG, GUO-ZHEN WANG
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Publication number: 20230278846Abstract: An automatic liquid filling system includes a machine assembly, a gripping unit, and a controlling unit. The machine assembly has a filling zone for receiving at least one container. The container has an opening. The machine assembly includes a plurality of filling nozzles in the filling zone. The gripping unit in the machine assembly includes a moving track and a robotic arm. The robotic arm is movably disposed on the moving track. The controlling unit in the machine assembly is electrically connected to the gripping unit. When the container is located in the filling zone, the controlling unit controls the robotic arm to move along the moving track and to pick up one of the filling nozzles to fill the container through the opening of the container. A method of filling liquid is provided herewith.Type: ApplicationFiled: May 19, 2022Publication date: September 7, 2023Applicant: TRUSVAL TECHNOLOGY CO., LTD.Inventors: SHIH-FENG CHEN, SHIH-PAO CHIEN
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Publication number: 20230264239Abstract: An inverting and cleaning device includes a positioning mechanism, an inverting mechanism, and a cleaning mechanism. The positioning mechanism is adapted to move a drum to a first position. The inverting mechanism includes a holding member. When the drum is located at the first position, the holding member clamps a drum body of the drum and inverts the drum to a second position where an opening on a top of the drum faces downward. The cleaning mechanism includes a cleaning tool. When the drum is located at the second position, the cleaning tool enters the drum through the opening of the drum for cleaning an inside of the drum.Type: ApplicationFiled: February 24, 2022Publication date: August 24, 2023Applicant: TRUSVAL TECHNOLOGY CO., LTD.Inventors: SHIH-FENG CHEN, Shih-Pao Chien
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Publication number: 20230236073Abstract: A temperature detecting apparatus is provided. The temperature detecting apparatus includes a movable carrier and a thermal sensor. The movable carrier includes a control module, and is movable in a working place according to a designated command. The thermal sensor is assembled to the movable carrier and is electrically coupled to the control module. When the movable carrier is moved according to the designated command, the thermal sensor is configured to detect the working place so as to generate an immediate temperature distribution of the working place. Moreover, when the immediate temperature distribution generated from the thermal sensor has an abnormal temperature value, the control module is configured to emit a warning signal to an external apparatus.Type: ApplicationFiled: January 25, 2022Publication date: July 27, 2023Inventors: HAN-LIN CHIANG, SHIH-FENG CHEN, NING SHYU
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Publication number: 20230232181Abstract: A method of wireless communication locator station to be disposed at specific location includes: detecting rotation angle information of client-based portable device, carried or worn by user, according to specific wireless communication standard between wireless communication locator station and client-based portable device when client-based portable device is within signal range of wireless communication locator station; generating head pose direction estimation according to calculated rotation angle information; and when head pose direction estimation indicates that a user turns face towards wireless communication locator station, sending packet signal from wireless communication locator station to server-based portable device, successfully paired with and security-connected with client-based portable device, so that server-based portable device can transfer packet signal to client-based portable device after receiving packet signal.Type: ApplicationFiled: March 29, 2023Publication date: July 20, 2023Applicant: PixArt Imaging Inc.Inventors: Shih-Feng Chen, Yen-Min Chang
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Publication number: 20230221427Abstract: A navigation device applied to a wireless identification tag includes a movable signal transceiver and an operation processor. The movable signal transceiver is adapted to transmit a detection signal and receive an actuation signal relevant to the detection signal. The operation processor is electrically connected to the movable signal transceiver. The operation processor is adapted to analyze the actuation signal to acquire relative position between the movable signal transceiver and the wireless identification tag, and generate a motion parameter in accordance with the relative position for moving the movable signal transceiver.Type: ApplicationFiled: January 13, 2022Publication date: July 13, 2023Applicant: PixArt Imaging Inc.Inventors: Shih-Feng Chen, Han-Lin Chiang, Ning Shyu
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Patent number: 11647351Abstract: A method of wireless communication locator station to be disposed at specific location includes: detecting rotation angle information of client-based portable device, carried or worn by user, according to specific wireless communication standard between wireless communication locator station and client-based portable device when client-based portable device is within signal range of wireless communication locator station; generating head pose direction estimation according to calculated rotation angle information; and when head pose direction estimation indicates that a user turns face towards wireless communication locator station, sending packet signal from wireless communication locator station to server-based portable device, successfully paired with and security-connected with client-based portable device, so that server-based portable device can transfer packet signal to client-based portable device after receiving packet signal.Type: GrantFiled: June 9, 2020Date of Patent: May 9, 2023Assignee: PixArt Imaging Inc.Inventors: Shih-Feng Chen, Yen-Min Chang
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Patent number: 11393332Abstract: A detection device and an indoor navigation system are provided. The detection device includes two detection modules each including a sound receiver for receiving sound from a peripheral object and a signal converting circuit that is electrically coupled to the sound receiver and that is configured to convert input signal from the sound receiver into a target spectrogram. The two spectrograms from the signal converting circuits have a time/phase difference, and at least one wireless earphone includes a storage unit and a judging circuit that is electrically coupled to the storage unit and the two signal converting circuits. The judging circuit is configured to compare any target spectrogram with basic spectrograms of the storage unit so as to determine which kind of objects the peripheral object is, and is configured to obtain an instant position of the peripheral object by the time/phase difference.Type: GrantFiled: November 6, 2020Date of Patent: July 19, 2022Assignee: PIXART IMAGING INC.Inventors: Shih-Feng Chen, Yen-Min Chang
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Publication number: 20220161748Abstract: A multiple detection system is applied to a vehicle and includes a contact-type detection module adapted to generate a contact-type detection datum, a contactless-type detection module adapted to generate a contactless-type detection datum, and an operation processor electrically connected with the contact-type detection module and the contactless-type detection module in a wire manner or in a wireless manner. The operation processor sets at least one of the contact-type detection datum and the contactless-type detection datum according to an environmental status of the vehicle to be a main detection result of the multiple detection system, and further sets the other detection datum to be an auxiliary detection result of the multiple detection system, for acquiring a passenger feature inside the vehicle.Type: ApplicationFiled: November 26, 2020Publication date: May 26, 2022Inventors: Han-Lin Chiang, Shih-Feng Chen, Yen-Min Chang, Ning Shyu, Chih-Wei Huang
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Publication number: 20220078584Abstract: A voice communication method between two or more wearable electronic devices via Bluetooth communication includes: providing the two or more wearable electronic devices paired with a mobile phone device; determining whether a distance between the two or more wearable electronic devices is larger than a distance threshold; controlling a wearable electronic device to enter a walkie-talkie mode to start a walkie-talkie conversation with one or more other wearable electronic devices when the distance is larger than the distance threshold; and during the walkie-talkie mode using the such wearable electronic device to send voice data from the wearable electronic device to one or more other wearable electronic devices to make the other wearable electronic device(s) to receive and play the voice data in the walkie-talkie mode for different user(s).Type: ApplicationFiled: September 9, 2020Publication date: March 10, 2022Inventors: Shih-Feng Chen, Yen-Min Chang