Patents by Inventor Chi-Chang Cheng

Chi-Chang Cheng 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).

  • Publication number: 20250162754
    Abstract: A packaging machine structure for wet paper towels having a sterilizing functionality has at least one rolling unit, a cutting unit attached behind the rolling unit, and a packing unit attached behind the cutting unit; a plurality of wet paper towels passing through the rolling unit, the cutting unit, and the packing unit to become a plurality of wet paper towel packs; wherein at least one germicidal lamp is disposed between the rolling unit and the cutting unit to sterilize the wet paper towels.
    Type: Application
    Filed: October 6, 2024
    Publication date: May 22, 2025
    Inventor: CHI-CHANG CHENG
  • Patent number: 10174910
    Abstract: A method includes pressing a macromolecular material to form a successive reflective layer, heating the reflective layer to a preset temperature value, stirring luminous powder and fluorescent powder at a high speed so that the luminous powder and the fluorescent powder are mixed evenly to form a luminous blank, evenly painting the luminous blank on the reflective layer, drying the luminous blank at a predetermined temperature value to form a luminous layer, and cooling the reflective layer and the luminous layer to produce a substrate which has reflective and self-luminous features. Thus, the luminous layer of the substrate emits light in a dark environment by reflection of the reflective layer of the substrate.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: January 8, 2019
    Assignee: Bu Shang Enterprise Co., Ltd.
    Inventor: Chi-Chang Cheng
  • Publication number: 20180266660
    Abstract: A method includes pressing a macromolecular material to form a successive reflective layer, heating the reflective layer to a preset temperature value, stirring luminous powder and fluorescent powder at a high speed so that the luminous powder and the fluorescent powder are mixed evenly to form a luminous blank, evenly painting the luminous blank on the reflective layer, drying the luminous blank at a predetermined temperature value to form a luminous layer, and cooling the reflective layer and the luminous layer to produce a substrate which has reflective and self-luminous features. Thus, the luminous layer of the substrate emits light in a dark environment by reflection of the reflective layer of the substrate.
    Type: Application
    Filed: March 16, 2017
    Publication date: September 20, 2018
    Inventor: Chi-Chang Cheng
  • Publication number: 20150342147
    Abstract: A pet carrier may include a main body and a protective layer. The protective layer is resilient and one side of the protective layer has a transition layer that can be attached to a surface of the protective layer by a glue. The protective layer is then sewed to the main body. One end of the main body has a first buckle unit, and a second buckle unit is disposed on an adjustable ring body passing through the other end of the main body. A connecting rod is disposed at a center portion of the adjustable ring body to secure the other end of the main body on the connecting rod.
    Type: Application
    Filed: June 3, 2014
    Publication date: December 3, 2015
    Applicant: BU SHANG ENTERPRISE CO. LTD.
    Inventor: Chi-Chang Cheng
  • Patent number: 9008931
    Abstract: A bicycle gear shift control system capable of avoiding frequent gear shifting includes: a power module; a microcomputer electrically connected to the power module for allowing a cyclist to switch between the automatic gear shifting mode and a manual gear shifting mode; a gear shifting driver electrically connected to the microcomputer, substantially connected to a derailleur, and instructed by the microcomputer to drive the derailleur to perform gear shift control; and a manual shifting controller electrically connected to the microcomputer. The microcomputer has an automatic gear shifting logic whereby the microcomputer determines the timing of automatic gear shifting and performs gear shifting. The microcomputer further has a gear shifting delay logic that involves delaying for a delay time interval from commencement of gear shifting according to a gear shifting criterion and ruling out all other gear shifting commands during the delay time interval.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: April 14, 2015
    Assignee: J.D. Components Co., Ltd.
    Inventor: Chi-Chang Cheng
  • Patent number: 8977450
    Abstract: An automatic gear-shifting bicycle includes: a bicycle body provided with two cranks, two pedals and a derailleur, a power supply module, a microcomputer, a gear shifting control driver, and a pedal position sensor module installed in the bicycle body corresponding to the cranks and electrically coupled to the microcomputer for enabling the microcomputer to determine the angular position and forward/backward pedaling of the cranks. The microcomputer calculates the optimal shift timing subject to the time point the crank to be moved over the pedaling dead point in the next time, the pedaling speed to be below a predetermined speed value or the cranks are been pedaling backwardly.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: March 10, 2015
    Assignee: J.D. Components Co., Ltd.
    Inventor: Chi-Chang Cheng
  • Patent number: 8886426
    Abstract: A power-assisted bicycle includes a bicycle body with a power assistance provider and a derailleur, a microcomputer, a gear-shift control driver, and sensors. When the microcomputer decides to perform gear shifting, it controls the power assistance provider to provide an assistant power output and the gear-shift control driver to drive the derailleur to shift gears properly subject to a before-shifting time period, an in-shifting time period and an after-shifting time period. Further, the microcomputer controls the power assistance provider to change the current assistant power to a predetermined low assistant power during the before-shifting time period, or to maintain the predetermined low assistant power during the in-shifting time period, or to change the assistant power output to a level higher than the current assistant power and then to return to the said current assistant power after the end of the after-shifting time period.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: November 11, 2014
    Assignee: J.D. Components Co., Ltd.
    Inventor: Chi-Chang Cheng
  • Patent number: 8768585
    Abstract: A shift control system working with a power-assisted bicycle that has an assisting-power supplying system and a derailleur. The shift control system includes a microcomputer in which plural shifting condition tables are stored. The assisting-power supplying system provides at least two different assisting modes. The shift control system also includes a shifting driver and at least one sensor for sensing at least one of a wheel speed, a crank speed, a pedaling force and a road gradient so as to generate at least one sensing signal and obtain at least one sensing result. The microcomputer selects one of the shifting condition tables in accordance with the current assisting mode for comparing the sensing result, thereby determining whether upshifting or downshifting is to be conducted. Then the microcomputer controls the shifting driver to send a shift control signal to make the derailleur upshift or downshift.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: July 1, 2014
    Assignee: J.D. Components Co., Ltd.
    Inventor: Chi-Chang Cheng
  • Patent number: 8532857
    Abstract: A power-assisted system is to be assembled to a derailleur-equipped bicycle for providing an auxiliary force to the bicycle. The power-assisted system includes: a microcomputer; a pedaling-rate sensor; a bicycle-speed sensor; a shift-position source; and an auxiliary-force database including data about at least a pedaling rate, a running speed, a current gear ratio and the auxiliary force, for defining a ratio between the running speed and the current gear ratio as a first comparison value, and defining the pedaling rate as a second comparison value wherein an auxiliary-force comparison table is made of levels of the auxiliary force to be output corresponding to the first and second comparison values. The microcomputer uses a determining logic circuit to determine the suitable level of the auxiliary force to be output and control the auxiliary-force providing device to output the auxiliary force in the determined level.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: September 10, 2013
    Assignee: J.D. Components Co., Ltd.
    Inventors: Yuan-Fang Hsu, Chi-Chang Cheng
  • Publication number: 20130096783
    Abstract: A bicycle gear shift control system capable of avoiding frequent gear shifting includes: a power module; a microcomputer electrically connected to the power module for allowing a cyclist to switch between the automatic gear shifting mode and a manual gear shifting mode; a gear shifting driver electrically connected to the microcomputer, substantially connected to a derailleur, and instructed by the microcomputer to drive the derailleur to perform gear shift control; and a manual shifting controller electrically connected to the microcomputer. The microcomputer has an automatic gear shifting logic whereby the microcomputer determines the timing of automatic gear shifting and performs gear shifting. The microcomputer further has a gear shifting delay logic that involves delaying for a delay time interval from commencement of gear shifting according to a gear shifting criterion and ruling out all other gear shifting commands during the delay time interval.
    Type: Application
    Filed: July 5, 2012
    Publication date: April 18, 2013
    Inventor: Chi-Chang CHENG
  • Publication number: 20130090819
    Abstract: A power-assisted bicycle includes a bicycle body with a power assistance provider and a derailleur, a microcomputer, a gear-shift control driver, and sensors. When the microcomputer decides to perform gear shifting, it controls the power assistance provider to provide an assistant power output and the gear-shift control driver to drive the derailleur to shift gears properly subject to a before-shifting time period, an in-shifting time period and an after-shifting time period. Further, the microcomputer controls the power assistance provider to change the current assistant power to a predetermined low assistant power during the before-shifting time period, or to maintain the predetermined low assistant power during the in-shifting time period, or to change the assistant power output to a level higher than the current assistant power and then to return to the said current assistant power after the end of the after-shifting time period.
    Type: Application
    Filed: August 2, 2012
    Publication date: April 11, 2013
    Inventor: Chi-Chang CHENG
  • Publication number: 20130054102
    Abstract: An automatic gear-shifting bicycle includes: a bicycle body provided with two cranks, two pedals and a derailleur, a power supply module, a microcomputer, a gear shifting control driver, and a pedal position sensor module installed in the bicycle body corresponding to the cranks and electrically coupled to the microcomputer for enabling the microcomputer to determine the angular position and forward/backward pedaling of the cranks. The microcomputer calculates the optimal shift timing subject to the time point the crank to be moved over the pedaling dead point in the next time, the pedaling speed to be below a predetermined speed value or the cranks are been pedaling backwardly.
    Type: Application
    Filed: July 3, 2012
    Publication date: February 28, 2013
    Inventor: Chi-Chang CHENG
  • Publication number: 20120325039
    Abstract: A derailleur for an electric bicycle is composed of a control unit, a gearshift drive unit, and a gearshift cable connected with the gearshift drive unit and the control unit. The gearshift traction (F1) required by the gearshift controller, the output torsion (T) of the gearshift drive unit, the radius (R) of the reel, and a bend radius of the gearshift cable, and the bend radius r of the gearshift cable satisfy the formula r?R?(T/F1). In this way, when the gearshift drive unit can drive the control unit for gearshift, figure out the minimum bend radius of the gearshift cable, so that the need for electricity can be reduced and the applicable electric motor can be adopted to enable the derailleur to be lightweight.
    Type: Application
    Filed: June 22, 2012
    Publication date: December 27, 2012
    Inventors: Chi-Chang CHENG, Meng-Jie Tsai
  • Publication number: 20120265414
    Abstract: A shift control system working with a power-assisted bicycle that has an assisting-power supplying system and a derailleur. The shift control system includes a microcomputer in which plural shifting condition tables are stored. The assisting-power supplying system provides at least two different assisting modes. The shift control system also includes a shifting driver and at least one sensor for sensing at least one of a wheel speed, a crank speed, a pedaling force and a road gradient so as to generate at least one sensing signal and obtain at least one sensing result. The microcomputer selects one of the shifting condition tables in accordance with the current assisting mode for comparing the sensing result, thereby determining whether upshifting or downshifting is to be conducted. Then the microcomputer controls the shifting driver to send a shift control signal to make the derailleur upshift or downshift.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 18, 2012
    Inventor: Chi-Chang CHENG
  • Publication number: 20120226400
    Abstract: A power-assisted system is to be assembled to a derailleur-equipped bicycle for providing an auxiliary force to the bicycle. The power-assisted system includes: a microcomputer; a pedaling-rate sensor; a bicycle-speed sensor; a shift-position source; and an auxiliary-force database including data about at least a pedaling rate, a running speed, a current gear ratio and the auxiliary force, for defining a ratio between the running speed and the current gear ratio as a first comparison value, and defining the pedaling rate as a second comparison value wherein an auxiliary-force comparison table is made of levels of the auxiliary force to be output corresponding to the first and second comparison values. The microcomputer uses a determining logic circuit to determine the suitable level of the auxiliary force to be output and control the auxiliary-force providing device to output the auxiliary force in the determined level.
    Type: Application
    Filed: December 28, 2011
    Publication date: September 6, 2012
    Applicant: J.D. COMPONENTS CO., LTD.
    Inventors: Yuan-Fang HSU, Chi-Chang Cheng
  • Patent number: 7701727
    Abstract: A portable electronic device (10) includes a body section (11), a film keypad (12), a printed circuit board (13) and a positioning device. The body section (11) defines an opening (111). The film keypad (12) is mounted to the body section (11). The positioning device is configured for aligning the film keypad (12) with the printed circuit board (13).
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: April 20, 2010
    Assignee: Chi Mei Communication Systems, Inc.
    Inventors: Yung-Chuan Chuang, Pao-Ching Mao, Chi-Chang Cheng, Kuo-Heng Sun
  • Publication number: 20090310315
    Abstract: A portable electronic device (10) includes a body section (11), a film keypad (12), a printed circuit board (13) and a positioning device. The body section (11) defines an opening (111). The film keypad (12) is mounted to the body section (11). The positioning device is configured for aligning the film keypad (12) with the printed circuit board (13).
    Type: Application
    Filed: December 19, 2008
    Publication date: December 17, 2009
    Applicant: CHI MEI COMMUNICATION SYSTEMS, INC.
    Inventors: YUNG-CHUAN CHUANG, PAO-CHING MAO, CHI-CHANG CHENG, KUO-HENG SUN
  • Publication number: 20090152083
    Abstract: A keypad assembly (100) includes a first soft layer (10), a stiff layer (20) mounted to the first soft layer, an optical layer (40) located under the stiff layer, and a second soft layer (50) mounted to the optical layer. The first soft layer has at least one protrusion (112) formed thereon. The stiff layer has at least one icon (222) formed thereon. The at least one icon corresponds to the at least one protrusion. The optical layer has at least one focusing unit (42) formed thereon. The at least one focusing unit corresponds to the at least one icon. The second soft layer has at least one switch point (522). The at least one switch point corresponds to the at least one protrusion.
    Type: Application
    Filed: July 16, 2008
    Publication date: June 18, 2009
    Applicant: CHI MEI COMMUNICATION SYSTEMS, INC.
    Inventors: CHIH-WEI CHENG, KUO-HENG SUN, PAO-CHING MAO, CHIEN-CHIH KUO, CHI-CHANG CHENG
  • Publication number: 20060234522
    Abstract: A button module (2) includes a touch pad (21), a printed circuit board (23) and at least one elastic contact pad (22) sandwiched between the touch pad and the printed circuit board. An electronic device includes a frame having at least one protrusion (261) and the button module. The touch pad includes at least one first locking hole (217) and the printed circuit board includes at least one second locking hole (237). The at least one first and second locking holes are corresponding to each other in location, and the at least one protrusion is engaged in the at least one first and second locking holes. The configuration of the protrusions and the first and second locking holes may cooperatively fasten the button module avoiding using bolts and can decrease a thickness.
    Type: Application
    Filed: April 13, 2006
    Publication date: October 19, 2006
    Inventors: Gwo-Ching Lin, Chi-Chang Cheng