Patents by Inventor Yu-Fan Fang
Yu-Fan Fang 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: 20200229715Abstract: A method for evaluating systolic and diastolic blood pressures of a subject for a blood pressure detecting system is disclosed. The blood pressure detecting system includes a processing module and an image capturing module configured to continuously records a hand and a face of a subject to retrieve multiple hand and face images associated with the subject. The method includes, by the processing module, obtaining biological information related to blood pressure of the subject according to the multiple hand and face images retrieved by the image capturing module; and, by the processing module, obtaining prediction results of systolic and diastolic blood pressures of the subject according to the biological information related to blood pressure of the subject.Type: ApplicationFiled: April 22, 2019Publication date: July 23, 2020Inventors: Tsuey-Huey Shiue, Yu-Fan Fang, Po-Wei Huang, Kuan-Hung Chen
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Patent number: 9030697Abstract: The present invention discloses a printing device. The printing device of the present invention may include a communication element capable of communicating with an external host utilizing a plurality of telecommunication network technologies to receive a file sent from the external host to the device, a printing element electrically coupled to the communication element to output an image file, and an audio outputting element electrically coupled to the communication element to output an audio file, wherein the communication element identifies a file type of the file received from the external host and selectively sends the file to the printing element or the audio outputting element.Type: GrantFiled: July 2, 2013Date of Patent: May 12, 2015Assignee: HiTi Digital, Inc.Inventors: Chien-Hua Huang, Mei-Ju Ko, Jufen Huang, Chia-chen Wei, Hung-Chan Chien, Hong-Shun Chiou, Yu-Fan Fang, Chun-Chang Tu, Tsung-Yueh Chen, Chih-Chieh Lin, Yueh Cheng Lin, Shiu-Sheng Hsu, Chu-Ming Liu
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Publication number: 20150009525Abstract: The present invention discloses a printing device. The printing device of the present invention may include a communication element capable of communicating with an external host utilizing a plurality of telecommunication network technologies to receive a file sent from the external host to the device, a printing element electrically coupled to the communication element to output an image file, and an audio outputting element electrically coupled to the communication element to output an audio file, wherein the communication element identifies a file type of the file received from the external host and selectively sends the file to the printing element or the audio outputting element.Type: ApplicationFiled: July 2, 2013Publication date: January 8, 2015Inventors: Chien-Hua HUANG, Mei-Ju Ko, Jufen Huang, Chia-chen Wei, Hung-Chan Chien, Hong-Shun Chiou, Yu-Fan Fang, Chun-Chang Tu, Tsuing-Yueh Chen, Chih-Chieh Lin, Yueh Cheng Lin, Shiu-Sheng Hsu, Chu-Ming Liu
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Publication number: 20140036102Abstract: An image capture device includes a memory module, an image capture module, a voice recognition module, and a controller. The memory module stores a plurality of image effects. The image capture module is used to generate a captured image and store the captured image in the memory module. The voice recognition module is used to receive a voice signal. The controller is electrically connected to the memory module, the image capture module, and the voice recognition module. The controller parses the voice signal via the voice recognition module. Then the controller is connected to the memory module to searches corresponding image effects according to a parsed result, and the controller selects one desired image effects from the corresponding image effects. Then the controller is connected to the memory module to select the captured image, and the controller synthesizes the selected image effect with the captured image.Type: ApplicationFiled: August 4, 2013Publication date: February 6, 2014Applicant: HiTi Digital, Inc.Inventor: Yu-Fan Fang
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Patent number: 6798432Abstract: A method is provided to increase the gray level resolution of a thermal print head. The thermal print head includes a plurality of heaters which are used to heat color dye so as to deposit the color dye on a paper to form a line image. The line image contains a plurality of pixels, each formed by one heater. When generating a pixel, a pulse sequence is fed to one heater to control the heater″s heating period. The pulse sequence contains first and second portions. The first portion contains a plurality of consecutive pulses which is used to generate a first gray level. And the second portion contains at least one empty pulse period followed by at least one pulse which is used to generate a second gray level. The combination of the first and second gray levels will determine the gray level of each pixel of the line image.Type: GrantFiled: May 21, 2002Date of Patent: September 28, 2004Assignee: Hi-Touch Imaging Technologies Co., Ltd.Inventors: Yu-Fan Fang, Kuang-Huei Huang
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Patent number: 6695428Abstract: An ink jet printing device has an ink jet printing head capable of moving back and forth along a print track to perform a printing job. The ink jet printing head has a plurality of nozzles and corresponding driving units. The servicing method has the steps: (1) recording status of each driving unit; (2) determining a service job corresponding to each individual driving unit with a predetermined rule according to the corresponding status of each driving unit when the ink jet printing head needs to be serviced, and (3) driving each driving unit to perform the corresponding service job.Type: GrantFiled: August 16, 2001Date of Patent: February 24, 2004Assignee: BenQ CorporationInventors: Chih-Hung Kao, Yu-Fan Fang
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Patent number: 6676239Abstract: A method and apparatus for use in inkjet printing. The apparatus includes a memory, a heat accumulation calculation device, and an image separating device. The memory is used to store a heat weighting look-up table. When data representative of the image is fed into the heat accumulation calculation device, a heat weighting for the image can be calculated according to the heat weighting look-up table, which can be used to determine the degree of heat accumulation during printing. The image separating device then outputs pieces of image data representing sub-images according to the heat weighting for the image. Finally, the image is formed by printing the sub-images successively according to the pieces of image data. In addition, for some regions where serious heat accumulation is predicted, the densities of the pixels to be printed within the regions can be adjusted to reduce the degrading effect on the printing quality due to the heat accumulation during printing.Type: GrantFiled: October 9, 2001Date of Patent: January 13, 2004Assignee: Benq CorporationInventors: Chih-Hung Kao, Yu-Fan Fang
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Patent number: 6672711Abstract: A driving circuit drives an ink jet print head in a printing device. The ink jet print head has ink jet cells and heating elements corresponding to the ink jet cells. The driving circuit has a driving signal generator that provides two different driving signals to heat the ink jet cells. The first driving signal heats cells intended for jetting ink with sufficient energy so that they do jet ink. The second driving signal heats cells not intended for jetting ink with insufficient energy so that they are heated without jetting ink.Type: GrantFiled: August 2, 2001Date of Patent: January 6, 2004Assignee: BenQ CorporationInventors: Chih-Hung Kao, Yu-Fan Fang
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Patent number: 6634731Abstract: A print head apparatus capable of temperature sensing is provided. The print head apparatus includes an ink ejector coupled to an enabling signal and a selection signal for selecting the ink ejector. The ink ejector includes a nozzle, a heating module for selectively heating ink in the ink ejector so that ink droplets are ejected from the nozzle, and a temperature sensing module for selectively producing a measured temperature signal indicative of a temperature of the ink in close proximity to the nozzle. When the enabling signal is active, and the selection signal is active and indicates that the ink ejector is selected, the heating module heats up the ink in the ink ejector so that the ink droplets are ejected from the nozzle. When the selection signal is active and indicates that the ink ejector is selected, the temperature sensing module outputs the measured temperature signal indicative of the temperature of the ink in close proximity to the nozzle.Type: GrantFiled: August 28, 2001Date of Patent: October 21, 2003Assignee: Benq CorporationInventors: Chih-Hung Kao, Yu-Fan Fang
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Publication number: 20030043232Abstract: A method is provided to increase the gray level resolution of a thermal print head. The thermal print head includes a plurality of heaters which are used to heat color dye so as to deposit the color dye on a paper to form a line image. The line image contains a plurality of pixels, each formed by one heater. When generating a pixel, a pulse sequence is fed to one heater to control the heater″s heating period. The pulse sequence contains first and second portions. The first portion contains a plurality of consecutive pulses which is used to generate a first gray level. And the second portion contains at least one empty pulse period followed by at least one pulse which is used to generate a second gray level. The combination of the first and second gray levels will determine the gray level of each pixel of the line image.Type: ApplicationFiled: May 21, 2002Publication date: March 6, 2003Inventors: Yu-Fan Fang, Kuang-Huei Huang
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Publication number: 20030038855Abstract: An ink jet printing device has an ink jet printing head capable of moving back and forth along a print track to perform a printing job. The ink jet printing head has a plurality of nozzles and corresponding driving units. The servicing method has the steps: (1) recording status of each driving unit; (2) determining a service job corresponding to each individual driving unit with a predetermined rule according to the corresponding status of each driving unit when the ink jet printing head needs to be serviced, and (3) driving each driving unit to perform the corresponding service job.Type: ApplicationFiled: August 16, 2001Publication date: February 27, 2003Inventors: Chih-Hung Kao, Yu-Fan Fang
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Patent number: 6474764Abstract: A control circuit for driving a print head of a printing apparatus is disclosed. The print head has a plurality of heating elements and a plurality of ink chambers. Each ink chamber stores ink and has a nozzle. The control circuit includes a thermometer for measuring a temperature of the ink chambers, and a processor for generating a heating signal according to printing data transmitted from the printing apparatus to drive heating elements to heat ink chambers corresponding to nozzles which will jet ink. The processor also generates a pre-heating signal to drive the heating elements according to the temperature measured by the thermometer. When necessary, the processor will generate the pre-heating signal in addition to generating the heating signal so as to provide additional energy to drive the heating elements corresponding to the nozzles which will jet ink.Type: GrantFiled: November 9, 2001Date of Patent: November 5, 2002Assignee: Benq CorporationInventors: Chih-Hung Kao, Yu-Fan Fang
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Patent number: 6447087Abstract: A method for driving an ink jet print head of a printing apparatus is disclosed. The ink jet print head includes a plurality of ink cells for containing ink, Each ink cell has a nozzle and a heating element. The method includes calculating an index of each nozzle which will jet ink in an array, corresponding indices of all nozzles which will jet ink in the array to heat-accumulation weightings according to a heat-accumulation weighting table, using the calculation module to calculate a total weight of the array using the heat-accumulation weightings of all the nozzles which will jet ink in the array, and using a driving module to provide energy to heating elements corresponding to the nozzles which will jet ink according to the total weight of the array.Type: GrantFiled: October 9, 2001Date of Patent: September 10, 2002Assignee: Acer Communications and Multimedia Inc.Inventors: Chih-Hung Kao, Yu-Fan Fang
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Publication number: 20020085053Abstract: A method and apparatus for use in inkjet printing. The apparatus includes a memory, a heat accumulation calculation device, and an image separating device. The memory is used to store a heat weighting look-up table. When data representative of the image is fed into the heat accumulation calculation device, a heat weighting for the image can be calculated according to the heat weighting look-up table, which can be used to determine the degree of heat accumulation during printing. The image separating device then outputs pieces of image data representing sub-images according to the heat weighting for the image. Finally, the image is formed by printing the sub-images successively according to the pieces of image data. In addition, for some regions where serious heat accumulation is predicted, the densities of the pixels to be printed within the regions can be adjusted to reduce the degrading effect on the printing quality due to the heat accumulation during printing.Type: ApplicationFiled: October 9, 2001Publication date: July 4, 2002Inventors: Chih-Hung Kao, Yu-Fan Fang
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Publication number: 20020057305Abstract: A control circuit for driving a print head of a printing apparatus is disclosed. The print head has a plurality of heating elements and a plurality of ink chambers. Each ink chamber stores ink and has a nozzle. The control circuit includes a thermometer for measuring a temperature of the ink chambers, and a processor for generating a heating signal according to printing data transmitted from the printing apparatus to drive heating elements to heat ink chambers corresponding to nozzles which will jet ink. The processor also generates a pre-heating signal to drive the heating elements according to the temperature measured by the thermometer. When necessary, the processor will generate the pre-heating signal in addition to generating the heating signal so as to provide additional energy to drive the heating elements corresponding to the nozzles which will jet ink.Type: ApplicationFiled: November 9, 2001Publication date: May 16, 2002Inventors: Chih-Hung Kao, Yu-Fan Fang
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Publication number: 20020054177Abstract: A method for driving an ink jet print head of a printing apparatus is disclosed. The ink jet print head includes a plurality of ink cells for containing ink, Each ink cell has a nozzle and a heating element. The method includes calculating an index of each nozzle which will jet ink in an array, corresponding indices of all nozzles which will jet ink in the array to heat-accumulation weightings according to a heat-accumulation weighting table, using the calculation module to calculate a total weight of the array using the heat-accumulation weightings of all the nozzles which will jet ink in the array, and using a driving module to provide energy to heating elements corresponding to the nozzles which will jet ink according to the total weight of the array.Type: ApplicationFiled: October 9, 2001Publication date: May 9, 2002Inventors: Chih-Hung Kao, Yu-Fan Fang
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Publication number: 20020027574Abstract: A print head apparatus capable of temperature sensing is provided. The print head apparatus includes an ink ejector coupled to an enabling signal and a selection signal for selecting the ink ejector. The ink ejector includes a nozzle, a heating module for selectively heating ink in the ink ejector so that ink droplets are ejected from the nozzle, and a temperature sensing module for selectively producing a measured temperature signal indicative of a temperature of the ink in close proximity to the nozzle. When the enabling signal is active, and the selection signal is active and indicates that the ink ejector is selected, the heating module heats up the ink in the ink ejector so that the ink droplets are ejected from the nozzle. When the selection signal is active and indicates that the ink ejector is selected, the temperature sensing module outputs the measured temperature signal indicative of the temperature of the ink in close proximity to the nozzle.Type: ApplicationFiled: August 28, 2001Publication date: March 7, 2002Inventors: Chih-Hung Kao, Yu-Fan Fang
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Publication number: 20020018086Abstract: A driving circuit drives an ink jet print head in a printing device. The ink jet print head has ink jet cells and heating elements corresponding to the ink jet cells. The driving circuit has a driving signal generator that provides two different driving signals to heat the ink jet cells. The first driving signal heats cells intended for jetting ink with sufficient energy so that they do jet ink. The second driving signal heats cells not intended for jetting ink with insufficient energy so that they are heated without jetting ink.Type: ApplicationFiled: August 2, 2001Publication date: February 14, 2002Inventors: Chih-Hung Kao, Yu-Fan Fang