Patents by Inventor Jiangbo Chen
Jiangbo 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: 20240119158Abstract: A boot verification method is applied to an electronic device having a secure boot function. An algorithm selection identifier is set in the electronic device to indicate an algorithm used by the electronic device in a boot process, so that on the basis of supporting a plurality of algorithms, the electronic device can select, based on the algorithm selection identifier, a corresponding algorithm to perform boot.Type: ApplicationFiled: October 10, 2023Publication date: April 11, 2024Inventors: Shiping Chen, Xingsheng Qiu, Lizhong Qiao, Jiangbo Zhu
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Patent number: 11948948Abstract: A detection substrate and a ray detector are disclosed. The detection substrate includes a base substrate; a plurality of detection pixel circuits, located on the base substrate; a first passivation layer, located on the side, facing away from the base substrate, of the detection pixel circuits; a planarization layer, located on the side, facing away from the base substrate, of the first passivation layer, where the surface of the side, facing away from the first passivation layer, of the planarization layer is a plane; and a plurality of photosensitive devices; where the photosensitive devices are electrically connected to the detection pixel circuits in a one-to-one correspondence through vias penetrating through the first passivation layer and the planarization layer, and each photosensitive device includes a first portion and a second portion.Type: GrantFiled: August 19, 2021Date of Patent: April 2, 2024Assignee: BOE Technology Group Co., Ltd.Inventors: Jiangbo Chen, Fanli Meng, Zeyuan Li, Yao Lu, Liye Duan, Yanzhao Li
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Patent number: 11940721Abstract: A projection display device and a projection display equipment are provided. The projection display device includes a display screen body, a photosensitive device, and a control module. The control module is electrically connected to the display screen body, the photosensitive device outputs a photosensitive signal when sensing a projection light beam, and the control module is electrically connected to the photosensitive device to receive the photosensitive signal and to control a section on the display screen body corresponding to a projection position of the projection light beam to be converted from a transparent state to an opaque state according to the photosensitive signal.Type: GrantFiled: May 15, 2020Date of Patent: March 26, 2024Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Lei Wen, Zhiqing Shi, Miao Jiang, Jiangbo Yao, Lixuan Chen, Xin Zhang
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Patent number: 11933924Abstract: The present disclosure provides an active pixel sensor and a flat panel detector. The active pixel sensor includes: a light sensing device configured to convert light sensed by the light sensing device into charges and supply the charges to a floating diffusion node; an amplification sub-circuit configured to amplify a signal according to a potential at the floating diffusion node and output the amplified signal through the output terminal; an adjustment sub-circuit configured to adjust, in response to a first control signal, a conversion gain from an amount of the light sensed by the light sensing device to the potential at the floating diffusion node; and a read sub-circuit configured to transmit a voltage of the input terminal of the read sub-circuit to the output terminal of the read sub-circuit according to a scan signal provided by the scan line.Type: GrantFiled: September 28, 2021Date of Patent: March 19, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jiangbo Chen, Fanli Meng, Zeyuan Li, Yao Lu, Tuo Sun, Yanzhao Li, Ding Ding
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Patent number: 11923384Abstract: The present disclosure provides a display panel, a manufacturing method thereof, and a display device. The display panel includes a first transistor. The first transistor includes a first semiconductor layer, and the first semiconductor layer includes bismuth selenium oxide materials to enhance mobility of the first transistor and improve electrical performance of the display panel, so that the display panel meets requirements of high refresh rate and high transmittance.Type: GrantFiled: November 19, 2020Date of Patent: March 5, 2024Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Yu Zhang, Miao Jiang, Jiangbo Yao, Lixuan Chen, Xin Zhang
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Publication number: 20240041329Abstract: A handheld device for photoacoustic microscopy. The handheld device includes an optical assembly, a light beam scanner and a transducer unit. The optical assembly is arranged to provide a light beam. The light beam scanner includes a reflector arranged to reflect the light beam from the optical assembly to provide a reflected light beam to an object, a first drive mechanism operable to move the reflector relative to the optical assembly to move the reflected light beam relative to the object, and a second drive mechanism operable to move the reflector relative to the optical assembly to move the reflected light beam relative to the object. The transducer unit is arranged to detect photoacoustic signals emitted by the object in response to receiving the reflected light beam.Type: ApplicationFiled: August 5, 2022Publication date: February 8, 2024Inventors: Lidai Wang, Jiangbo Chen
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Patent number: 11894398Abstract: A photodetector, includes a photosensitive layer, a thin film transistor, and a sensing electrode, the sensing electrode connected to one of source/drain electrodes of the thin film transistor to transmit a signal generated by the photosensitive layer to the thin film transistor; wherein the photodetector further is a hydrogen barrier layer which is disposed between the photosensitive layer and the thin film transistor and is configured to inhibit hydrogen of the photosensitive layer from entering the thin film transistor. A method of manufacturing a photodetector is further provided.Type: GrantFiled: March 17, 2021Date of Patent: February 6, 2024Assignee: BOE Technology Group Co., Ltd.Inventors: Jiangbo Chen, Fanli Meng, Fan Li, Shuo Zhang, Da Li, Zeyuan Li, Yanzhao Li
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Patent number: 11830895Abstract: The embodiments of the present disclosure provide a detection substrate and a ray detector, comprising a base substrate; a direct-conversion photosensitive device located on the base substrate; an indirect-conversion photosensitive device located between the base substrate and the layer where the direct-conversion photosensitive device is located; and a reading transistor located between the base substrate and the layer where the indirect-conversion photosensitive device is located. The reading transistor is electrically connected to the direct-conversion photosensitive device and the indirect-conversion photosensitive device respectively.Type: GrantFiled: May 12, 2021Date of Patent: November 28, 2023Assignee: BOE Technology Group Co., Ltd.Inventors: Fanli Meng, Jiangbo Chen, Zeyuan Li
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Publication number: 20230378909Abstract: The present disclosure provides a voltage controlled oscillator for flipped and complementary low noise. The voltage controlled oscillator includes a first resonant cavity, a second resonant cavity, and an associated circuit. The associated circuit is configured to connect the first resonant cavity and the second resonant cavity in series and couple the first resonant cavity and the second resonant cavity. A resonant frequency of the first resonant cavity and a resonant frequency of the second resonant cavity satisfy a first preset condition.Type: ApplicationFiled: June 14, 2023Publication date: November 23, 2023Applicant: ZHEJIANG UNIVERSITYInventors: Zhiwei XU, Quanyong LI, Jiangbo CHEN, Likang DU, Shengjie WANG, Chunyi SONG
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Publication number: 20230360429Abstract: The present disclosure relates to a fingerprint identification method, device, an electronic apparatus and a storage medium. The fingerprint identification method includes: capturing a fingerprint by a fingerprint sensor, identifying matching pairs of minutiae between the captured fingerprint and a reference fingerprint; calculating a first matching result based on the minutia matching pairs; identifying minutia surrounding features for each minutia of the captured fingerprint in the minutia matching pairs; determining, for each minutia in the minutia matching pairs, whether the minutia surrounding features of the captured fingerprint match with minutia surrounding features of the reference fingerprint; calculating a second matching result based on the determination; and generating an identification result based on the first matching result and the second matching result.Type: ApplicationFiled: June 20, 2022Publication date: November 9, 2023Inventors: Ying MIN, Feng ZHU, Hanhui LI, Huaiwen BAI, Yunhao ZHANG, Xiaochun YAN, Chunmiao JIANG, Wenyan ZHENG, Yanjun CHEN, Jiangbo CHEN, Zhijie LV
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Patent number: 11735611Abstract: A drive backplane, a manufacturing method thereof, a detection substrate and a detection device. The drive backplane includes: a base plate and multiple drive modules disposed on the base plate. Each drive module includes a reset transistor, a read transistor, an amplifier transistor and a memory capacitor; the reset transistor is connected to the memory capacitor, the memory capacitor is connected to a photosensor, the amplifier transistor is connected to the memory capacitor, and the read transistor is connected to the amplifier transistor; wherein an active layer in the amplifier transistor is made of amorphous silicon or an oxide semiconductor.Type: GrantFiled: June 23, 2021Date of Patent: August 22, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Fanli Meng, Jiangbo Chen, Zeyuan Li
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Publication number: 20230178675Abstract: Provided are a detection substrate and a manufacturing method therefor, and a ray detection apparatus. The detection substrate includes: a driving back plate, wherein the driving back plate is provided with a plurality of detection regions, and each detection region includes a thin-film transistor located on a base substrate, and a first bonding electrode that is located on the thin-film transistor and is electrically connected to a source electrode of the thin-film transistor; and a plurality of avalanche photodiodes, wherein the plurality of avalanche photodiodes are arranged in the detection regions one by one, and a second bonding electrode that is fixedly connected to the first bonding electrode is arranged on the side of each avalanche photodiode that faces the driving back plate.Type: ApplicationFiled: May 24, 2021Publication date: June 8, 2023Inventors: Fanli MENG, Jiangbo CHEN, Zeyuan LI
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Publication number: 20230168396Abstract: A photoelectric detection circuit and a driving method therefor, and a detection substrate and a ray detector. The photoelectric detection circuit includes a storage circuit (101), an amplification circuit (102), a first reading circuit (103) and a second reading circuit (104), where the storage circuit (101), the amplification circuit (102) and the first reading circuit (103) cooperate with one another to realize a photoelectric detection function in an active mode; and the storage circuit (101) and the second reading circuit (104) cooperate with each other to realize a photoelectric detection function in a passive mode.Type: ApplicationFiled: May 25, 2021Publication date: June 1, 2023Inventors: Jiangbo CHEN, Fanli MENG, Tuo SUN, Zeyuan LI, Liye DUAN
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Patent number: 11641207Abstract: Disclosed is a fast lock phase-locked loop circuit for avoiding cycle slip, which belongs to the technical field of integrated circuits. The fast lock phase-locked loop circuit includes a phase frequency detector, a charge pump, an intermediate stage circuit, a loop filter, a voltage-controlled oscillator and a frequency divider. The phase frequency detector, the charge pump, the intermediate stage circuit, the loop filter and the voltage-controlled oscillator are connected in sequence; an output OUT end of the voltage-controlled oscillator is connected with an input IN end of frequency divider, and an output OUT end of the frequency divider is connected with an input IN end of the phase frequency detector to form a feedback path. The output clock frequency of the VCO and the expected frequency, i.e., the reference clock frequency and the feedback clock frequency, are prevented from being too close when the loop is started.Type: GrantFiled: February 10, 2022Date of Patent: May 2, 2023Assignee: ZHEJIANG UNIVERSITYInventors: Zhiwei Xu, Jiangbo Chen, Jiabing Liu, Hui Nie, Zhihao Lv, Chunyi Song
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Patent number: 11616100Abstract: A display panel includes a thin film transistor layer (4), a grating layer (3), a transparent anode layer (2), an emission layer (1), and a colored layer (6) opposite the emission layer (1). The colored layer (6) may include a plurality of color filters. The grating layer (3) may be between the thin film transistor layer (4) and the transparent anode layer (2). The grating layer (3) may include a plurality of blazed gratings corresponding to the plurality of color filters, respectively.Type: GrantFiled: May 24, 2019Date of Patent: March 28, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Ying Han, Jianye Zhang, Wei Li, Wei Liu, Xing Zhang, Ning Li, Jiangbo Chen
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Patent number: 11604291Abstract: The present disclosure provides a flat panel detector and a driving method thereof. A detection unit includes: a first transistor, a second transistor, a storage capacitor and a photoelectric detection device, and because an active layer of the second transistor is made of amorphous silicon semiconductor materials and an active layer of the first transistor is made of low-temperature poly-silicon semiconductor materials or metallic oxide semiconductor materials, transmission delay of an electric signal generated by the photoelectric detection device may be reduced by controlling conduction and cut-off of the first transistor and controlling conduction and cut-off of the second transistor.Type: GrantFiled: June 21, 2021Date of Patent: March 14, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zeyuan Li, Jiangbo Chen, Fanli Meng
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Patent number: 11594653Abstract: The present disclosure provides a flat panel detector and a medical image detection device. The flat panel detector includes a base substrate, wherein the base substrate is divided into a plurality of detection units, each detection unit includes a first absorbing layer and a second absorbing layer, both of which are arranged on the base substrate in a laminating manner, the second absorbing layer is located on one side, away from the base substrate, of the first absorbing layer, and an energy level of rays absorbed by the second absorbing layer is smaller than that of rays absorbed by the first absorbing layer; a voltage supply electrode structure; and an output circuit, electrically connected to the voltage supply electrode structure and configured to output a first detection signal of the first absorbing layer and a second detection signal of the second absorbing layer.Type: GrantFiled: June 23, 2021Date of Patent: February 28, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Fanli Meng, Jiangbo Chen, Zeyuan Li, Yao Lu, Ning Dang
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Publication number: 20220375974Abstract: The embodiments of the present disclosure provide a detection substrate and a ray detector, comprising a base substrate; a direct-conversion photosensitive device located on the base substrate; an indirect-conversion photosensitive device located between the base substrate and the layer where the direct-conversion photosensitive device is located; and a reading transistor located between the base substrate and the layer where the indirect-conversion photosensitive device is located. The reading transistor is electrically connected to the direct-conversion photosensitive device and the indirect-conversion photosensitive device respectively.Type: ApplicationFiled: May 12, 2021Publication date: November 24, 2022Inventors: Fanli MENG, Jiangbo CHEN, Zeyuan LI
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Patent number: 11463096Abstract: Disclosed is a zero-delay phase-locked loop frequency synthesizer based on multi-stage synchronization, which belongs to the technical field of integrated circuits. The zero-delay phase-locked loop frequency synthesizer comprises: a phase frequency detector, a charge pump, a loop pass filter, a voltage control oscillator and a multi-stage synchronization divider, wherein the phase frequency detector, the charge pump, the loop pass filter and the voltage control oscillator are connected in sequence; an output OUT of the voltage control oscillator is connected to an input IN of the multi-stage synchronization divider; and an output OUT of the multi-stage synchronization divider is connected to an input IN of the phase frequency detector, so as to form a feedback path.Type: GrantFiled: September 30, 2021Date of Patent: October 4, 2022Assignee: ZHEJIANG UNIVERSITYInventors: Zhiwei Xu, Jiangbo Chen, Jiabing Liu, Hui Nie, Kaijie Ding, Chunyi Song
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Publication number: 20220311444Abstract: Disclosed is a fast lock phase-locked loop circuit for avoiding cycle slip, which belongs to the technical field of integrated circuits. The fast lock phase-locked loop circuit includes a phase frequency detector, a charge pump, an intermediate stage circuit, a loop filter, a voltage-controlled oscillator and a frequency divider. The phase frequency detector, the charge pump, the intermediate stage circuit, the loop filter and the voltage-controlled oscillator are connected in sequence; an output OUT end of the voltage-controlled oscillator is connected with an input IN end of frequency divider, and an output OUT end of the frequency divider is connected with an input IN end of the phase frequency detector to form a feedback path. The output clock frequency of the VCO and the expected frequency, i.e., the reference clock frequency and the feedback clock frequency, are prevented from being too close when the loop is started. (FIG.Type: ApplicationFiled: February 10, 2022Publication date: September 29, 2022Inventors: Zhiwei XU, Jiangbo CHEN, Jiabing LIU, Hui NIE, Zhihao LV, Chunyi SONG