Patents by Inventor Wen-Han Chang
Wen-Han Chang 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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Patent number: 11938272Abstract: The present invention discloses a respiratory mask to connect a user and a breathing tube for receiving a first gas and releasing a second gas, so as to provide an user's respiratory system to exchange gas. It comprises a main part, an air chamber exchange part, an insert and a clamping part. The main part provides a first, second, and third openings that are communicated each other. The first opening connects to the breathing tube to receive the first gas from the breathing tube. The air chamber exchange part provides an exhaust assembly to relieve pressure according to an internal air pressure of the air chamber exchange part. The insert connects to the user's nose so as to direct the first gas to the user or direct the second gas from the user to the air chamber exchange part. The clamping part connects to the user's mouth.Type: GrantFiled: January 29, 2020Date of Patent: March 26, 2024Assignee: MACKAY MEMORIAL HOSPITALInventors: Wen-Han Chang, Shih-Yi Lee, Ren-Jei Chung, Ching-Yu Kuo
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METHOD AND SYSTEM OF IMAGE PROCESSING WITH POWER REDUCTION WHILE USING A UNIVERSAL SERIAL BUS CAMERA
Publication number: 20240069619Abstract: A method, system, and article provide image processing with power reduction while using universal serial bus cameras.Type: ApplicationFiled: August 29, 2022Publication date: February 29, 2024Applicant: Intel CorporationInventors: Ko Han Wu, Thiam Wah Loh, Kenneth K. Lau, Wen-Kuang Yu, Ming-Jiun Chang, Andy Yeh, Wei Chih Chen -
Patent number: 11435839Abstract: The present invention discloses a touch pad module, which includes a touch panel, an elastomer and a noise reducing film. The touch panel has a bottom surface. The elastomer is disposed on the bottom surface of the touch panel. The noise reducing film covers the elastomer. The noise reducing film includes a fixing portion, an opening and an elastic arm structure. The fixing portion is disposed on the bottom surface of the touch panel. The opening is located in the fixing portion. The elastic arm structure extends from the fixing portion to an inside of the opening and corresponds to the elastomer. The elastic arm structure includes a suspended portion and a plurality of elastic arms, and the elastic arms extend from the suspended portion to the fixing portion.Type: GrantFiled: August 30, 2021Date of Patent: September 6, 2022Assignee: CHICONY ELECTRONICS CO., LTD.Inventors: Po-Hsin Li, Wen-Han Chang
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Publication number: 20220171475Abstract: The present invention discloses a touch pad module, which includes a touch panel, an elastomer and a noise reducing film. The touch panel has a bottom surface. The elastomer is disposed on the bottom surface of the touch panel. The noise reducing film covers the elastomer. The noise reducing film includes a fixing portion, an opening and an elastic arm structure. The fixing portion is disposed on the bottom surface of the touch panel. The opening is located in the fixing portion. The elastic arm structure extends from the fixing portion to an inside of the opening and corresponds to the elastomer. The elastic arm structure includes a suspended portion and a plurality of elastic arms, and the elastic arms extend from the suspended portion to the fixing portion.Type: ApplicationFiled: August 30, 2021Publication date: June 2, 2022Inventors: Po-Hsin LI, Wen-Han CHANG
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Publication number: 20220100294Abstract: The present invention discloses a touch pad module, which includes a touch panel, a frame and a linkage assembly. The frame is disposed under the touch panel. The linkage assembly is disposed between the touch panel and the frame. The linkage assembly includes an elastic plate and supporting plate. The elastic plate has a first portion, a second portion and a third portion. The second portion is located between the first portion and the third portion, the first portion is connected to the touch panel, and the third portion is connected to the frame. The supporting plate is correspondingly disposed on the second portion of the elastic plate.Type: ApplicationFiled: January 7, 2021Publication date: March 31, 2022Inventors: Po-Hsin LI, Wen-Han CHANG
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Patent number: 11287907Abstract: The present invention discloses a touch pad module, which includes a touch panel, a frame and a linkage assembly. The frame is disposed under the touch panel. The linkage assembly is disposed between the touch panel and the frame. The linkage assembly includes an elastic plate and supporting plate. The elastic plate has a first portion, a second portion and a third portion. The second portion is located between the first portion and the third portion, the first portion is connected to the touch panel, and the third portion is connected to the frame. The supporting plate is correspondingly disposed on the second portion of the elastic plate.Type: GrantFiled: January 7, 2021Date of Patent: March 29, 2022Assignee: CHICONY ELECTRONICS CO., LTD.Inventors: Po-Hsin Li, Wen-Han Chang
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Publication number: 20220044827Abstract: The present invention is provided a biological infection detection method, which includes the steps (a) is providing a screening kit with an identification code and a detection area; step (b) is binding an identity of a screened person and the identification code, wherein the identification code is binding the identity is defined as an associated identification code; step (c) is setting a biological sample of the screened person in the detection area; step (d) is generating a test result of the detected biological sample in the detection area; step (e) is to compare the associated identification code to ensure the test result belong to the screened person; and step (f), based on the test result, to determine whether the biological sample belongs to a first state, a second state, or an undeterminable state. The invention also provides a biological infection detection and personnel control method and biological infection response system.Type: ApplicationFiled: June 17, 2021Publication date: February 10, 2022Inventor: WEN-HAN CHANG
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Patent number: 10932704Abstract: A device for measuring brain oxygen level of a subject, including a probe (210) and a detecting means (220), which are respectively coupled to a processor (230). According to the example, the probe (210) includes three light sources (215a, 215b, 215c) that simultaneously emit the first, second, and third NIR wavelengths across the brain of the subject. The first NIR wavelength is the isosbestic wavelength for oxy-hemoglobin (HbO2) and deoxy-hemoglobin (Hb), the second NIR wavelength is shorter than the first NIR wavelength, and the third NIR wavelength is longer than the first NIR wavelength. The detecting means (220) includes a first, second and third detectors (221, 222, 223) for respectively detecting the NIR intensities of the first, second and third NIR wavelengths traveled across the brain. The processor (230) is configured to determine blood oxygen level based on the measured NIR intensities of the first, second and third NIR wavelengths by use of build-in algorithm derived from Beer-Lambert Law.Type: GrantFiled: November 16, 2015Date of Patent: March 2, 2021Assignee: MACKAY MEMORIAL HOSPITALInventors: Wen-Han Chang, Chih-Wei Lu
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Publication number: 20200268999Abstract: The present invention discloses a respiratory mask to connect a user and a breathing tube for receiving a first gas and releasing a second gas, so as to provide an user's respiratory system to exchange gas. It comprises a main part, an air chamber exchange part, an insert and a clamping part. The main part provides a first, second, and third openings that are communicated each other. The first opening connects to the breathing tube to receive the first gas from the breathing tube. The air chamber exchange part provides an exhaust assembly to relieve pressure according to an internal air pressure of the air chamber exchange part. The insert connects to the user's nose so as to direct the first gas to the user or direct the second gas from the user to the air chamber exchange part. The clamping part connects to the user's mouth.Type: ApplicationFiled: January 29, 2020Publication date: August 27, 2020Inventors: Wen-Han CHANG, Shih-Yi LEE, Ren-Jei CHUNG, Ching-Yu KUO
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Publication number: 20170319116Abstract: A device for measuring brain oxygen level of a subject, including a probe (210) and a detecting means (220), which are respectively coupled to a processor (230). According to the example, the probe (210) includes three light sources (215a, 215b, 215c) that simultaneously emit the first, second, and third NIR wavelengths across the brain of the subject. The first NIR wavelength is the isosbestic wavelength for oxy-hemoglobin (HbO2) and deoxy-hemoglobin (Hb), the second NIR wavelength is shorter than the first NIR wavelength, and the third NIR wavelength is longer than the first NIR wavelength. The detecting means (220) includes a first, second and third detectors (221, 222, 223) for respectively detecting the NIR intensities of the first, second and third NIR wavelengths traveled across the brain. The processor (230) is configured to determine blood oxygen level based on the measured NIR intensities of the first, second and third NIR wavelengths by use of build-in algorithm derived from Beer-Lambert Law.Type: ApplicationFiled: November 16, 2015Publication date: November 9, 2017Applicant: MacKay Memorial HospitalInventors: Wen-Han CHANG, Chih-Wei LU
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Patent number: 8403247Abstract: The slider case provides housing for a portable appliance and integrates a cable retractor containing a coil spring, a rotary disc, a cable, and a winding disc. The rotary disc has a top circular indentation where the coil spring is accommodated in the indentation. A number of gear teeth are provided around the rotary disc and the winding disc. The winding disc has a central axle for the winding of the cable. The winding disc is positioned such that its teeth engage those of the rotary disc. A spiral track and a centrifugal track are provided on the rotary disc and the casing member, respectively. A positioning ball, together with the spiral track and the centrifugal track, provides a positioning function. The cable can be configured to be pulled in a single direction with a connector or multiple directors at a free end.Type: GrantFiled: December 3, 2010Date of Patent: March 26, 2013Inventors: Ko-An Chen, Wen-Han Chang
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Patent number: 8336688Abstract: The cable retractor mainly contains a housing member, a coil spring, a rotary disc, a cable, and a winding disc. The rotary disc has a top circular indentation where the coil spring is accommodated in the indentation. A number of gear teeth are provided around the rotary disc and the winding disc. The winding disc has a central axle for the winding of the cable. The winding disc is positioned such that its teeth engage those of the rotary disc. A spiral track and a centrifugal track are provided on the rotary disc and the housing member, respectively. A positioning ball, together with the spiral track and the centrifugal track, provides a positioning function. The cable can be configured to be pulled in a single direction with a connector or multiple directors at a free end.Type: GrantFiled: December 3, 2010Date of Patent: December 25, 2012Inventors: Ko-An Chen, Wen-Han Chang
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Publication number: 20120138725Abstract: The slider case provides housing for a portable appliance and integrates a cable retractor containing a coil spring, a rotary disc, a cable, and a winding disc. The rotary disc has a top circular indentation where the coil spring is accommodated in the indentation. A number of gear teeth are provided around the rotary disc and the winding disc. The winding disc has a central axle for the winding of the cable. The winding disc is positioned such that its teeth engage those of the rotary disc. A spiral track and a centrifugal track are provided on the rotary disc and the casing member, respectively. A positioning ball, together with the spiral track and the centrifugal track, provides a positioning function. The cable can be configured to be pulled in a single direction with a connector or multiple directors at a free end.Type: ApplicationFiled: December 3, 2010Publication date: June 7, 2012Inventors: KO-AN CHEN, WEN-HAN CHANG
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Publication number: 20120138724Abstract: The cable retractor mainly contains a housing member, a coil spring, a rotary disc, a cable, and a winding disc. The rotary disc has a top circular indentation where the coil spring is accommodated in the indentation. A number of gear teeth are provided around the rotary disc and the winding disc. The winding disc has a central axle for the winding of the cable. The winding disc is positioned such that its teeth engage those of the rotary disc. A spiral track and a centrifugal track are provided on the rotary disc and the housing member, respectively. A positioning ball, together with the spiral track and the centrifugal track, provides a positioning function. The cable can be configured to be pulled in a single direction with a connector or multiple directors at a free end.Type: ApplicationFiled: December 3, 2010Publication date: June 7, 2012Inventors: KO-AN CHEN, Wen-Han Chang
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Publication number: 20110254766Abstract: Disclosed is a computer mouse cable reel stowage device, which ingeniously stows a computer mouse cable reel inside the structure of a computer mouse, whereby a cabled mouse and a reel that is provided for winding and releasing the mouse cable are integrated in a single combined structure to allow for easy and simultaneous carrying. Thus, the two devices of cable mouse and cable reel can be always of the simultaneity in carrying and use to ensure synergy effect of use.Type: ApplicationFiled: April 20, 2010Publication date: October 20, 2011Inventor: WEN-HAN CHANG
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Patent number: 7681823Abstract: A positioning rod structure for a single-pull reel which will be positioned upon pulling out of cord from the reel and will restore to its original position if the cord is pulled for a second time. When the cord is pulled for one round, a positioning of the cord is done, and the pulling of the cord provides multi control of the cord, accordingly, the pulling of cord is precisely controlled.Type: GrantFiled: March 10, 2009Date of Patent: March 23, 2010Assignee: Acrox Technologies, Co., Ltd.Inventor: Wen-Han Chang
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Patent number: 7607603Abstract: A single-pull power and signal cable reel is disclosed. The reel provides single direction multi-stage retraction of signal and power cable. When the lead wire is pulled once, a positioning effect is provided. Accordingly, the reel allows precise control of an extended signal or cable for use in computer or related products.Type: GrantFiled: May 22, 2008Date of Patent: October 27, 2009Inventor: Wen-Han Chang
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Patent number: 7604194Abstract: A single-pull reel which includes a bottom cover having a center axle, a top cover engageable with the bottom cover; a cord-rotating disc having a top portion provided with a circular flange which is divided into a plurality of sections by a plurality of slots, a clamping member being provided behind one of the sections to form a passage therebetween and having a plurality of serrated teeth at an inner side against the one of the sections, the bottom portion being provided with a multi-operation urging track, a spiral spring having an inner end engaged with a notch of the axle and an outer end bent into a hook to engage with one of the sections of the cord-rotating disc, a cord, and a peg positioning structure comprising a peg and a pulling spring.Type: GrantFiled: December 25, 2008Date of Patent: October 20, 2009Assignee: Acrox Technologies Co., Ltd.Inventor: Wen-Han Chang
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Publication number: 20090166462Abstract: A positioning rod structure for a single-pull reel which will be positioned upon pulling out of cord from the reel and will restore to its original position if the cord is pulled for a second time. When the cord is pulled for one round, a positioning of the cord is done, and the pulling of the cord provides multi control of the cord, accordingly, the pulling of cord is precisely controlled.Type: ApplicationFiled: March 10, 2009Publication date: July 2, 2009Inventor: Wen-Han Chang
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Publication number: 20090101743Abstract: A single-pull reel which includes a bottom cover having a center axle, a top cover engageable with the bottom cover; a cord-rotating disc having a top portion provided with a circular flange which is divided into a plurality of sections by a plurality of slots, a clamping member being provided behind one of the sections to form a passage therebetween and having a plurality of serrated teeth at an inner side against the one of the sections, the bottom portion being provided with a multi-operation urging track, a spiral spring having an inner end engaged with a notch of the axle and an outer end bent into a hook to engage with one of the sections of the cord-rotating disc, a cord, and a peg positioning structure comprising a peg and a pulling spring.Type: ApplicationFiled: December 25, 2008Publication date: April 23, 2009Inventor: Wen-Han CHANG