Patents by Inventor Chih Chun Chan

Chih Chun Chan 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).

  • Patent number: 10151913
    Abstract: An endoscopic distance measurement method, which causes a single wavelength light source in an observation unit at a front end of a flexible tube of an endoscope to emit a predetermined wavelength light to an object to be measured via a diffraction grating so as to form a zero-order bright spot, a positive first-order bright spot and a negative first-order bright spot on the surface of the object through optical diffraction, and then capture an image from the object, and then calculate a distance magnification using a first arithmetic logic, and then to calculate the actual distance between two adjacent bright spots of the predetermined wavelength light being projected on the object using a second arithmetic logic and then to calculate the distance between the diffraction grating and the zero-order bright spot using a third arithmetic logic.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: December 11, 2018
    Assignee: MEDICAL INTUBATION TECHNOLOGY CORPORATION
    Inventor: Chih-Chun Chan
  • Publication number: 20180003943
    Abstract: An endoscopic distance measurement method, which causes a single wavelength light source in an observation unit at a front end of a flexible tube of an endoscope to emit a predetermined wavelength light to an object to be measured via a diffraction grating so as to form a zero-order bright spot, a positive first-order bright spot and a negative first-order bright spot on the surface of the object through optical diffraction, and then capture an image from the object, and then calculate a distance magnification using a first arithmetic logic, and then to calculate the actual distance between two adjacent bright spots of the predetermined wavelength light being projected on the object using a second arithmetic logic and then to calculate the distance between the diffraction grating and the zero-order bright spot using a third arithmetic logic.
    Type: Application
    Filed: June 2, 2017
    Publication date: January 4, 2018
    Inventor: Chih-Chun CHAN
  • Publication number: 20170293987
    Abstract: A license verification method executed via a mobile device includes: encrypting a serial number of a target server with a license to generate a license activation request, and sending the license activation request to an activation server; receiving an activation result from the activation server, where the activation result is generated from the activation server in response to the license activation request; and sending the activation result to the activation server for determining whether to enter an installation process associated with the license or not.
    Type: Application
    Filed: March 15, 2017
    Publication date: October 12, 2017
    Inventor: Chih-Chun Chan
  • Publication number: 20160309121
    Abstract: A method for managing video recording storage space in a surveillance system and associated apparatus are provided, where the surveillance system includes at least one camera, and the method is applied to a control circuit of the surveillance system. The method includes the steps of: calculating scores of a plurality of subsets within a series of video recording data of the surveillance system, respectively, wherein the plurality of subsets corresponds to a plurality of time intervals, respectively, and the scores are utilized for determining whether to erase at least one portion of the plurality of subsets; and selecting at least one subset from the plurality of subsets according to the scores, and erasing the subset, wherein at least one score of the subset comprises an extreme value of the scores.
    Type: Application
    Filed: March 22, 2016
    Publication date: October 20, 2016
    Inventors: Chih-Chun Chan, Yu-Hsiang Chiu, Szu-Hsien Lee
  • Patent number: 8553076
    Abstract: A contact measuring endoscope apparatus includes a case located at a front end of the apparatus to define a accommodating space; a contact probe connected to and projected from an end of the case by a fixed distance; a light emitting element for emitting light; an image pickup lens arranged in the accommodating space for gathering light reflected from an external object to be measured, so as to form an optical image; a light sensor arranged in the accommodating space to locate adjacent to one side of the image pickup lens for converting the optical image into a digital image; and a measuring module. When the contact probe is caused to contact the object to be measured, a fixed distance between the image pickup lens and the object can be maintained and therefore the digital image can be in the fixed scale.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: October 8, 2013
    Assignee: Medical Intubation Technology Corporation
    Inventor: Chih-Chun Chan
  • Publication number: 20120289778
    Abstract: An endoscope includes an endoscope body carrying a display device and buttons, a display control circuit, a flexible tube member, an image pickup module, and a stop pin, which has a proximal end thereof connected to the composite of the flexible tube member and the image pickup module and a distal end thereof extending out of the composite to a predetermined length. Further, the display control circuit includes a scale display procedure, which is adapted for displaying a scale on the display device and has sufficient accuracy for determining the size, area or angle of the target only when the distal end of the stop pin is stopped against the target. Thus, the stop pin can be used to establish a distance between the image pickup module and the target, enabling the scale to be used for determination of the size, area or angle of the target being displayed on the display device.
    Type: Application
    Filed: June 22, 2011
    Publication date: November 15, 2012
    Inventor: Chih-Chun CHAN
  • Publication number: 20110015485
    Abstract: An endoscopic device and its image processing method include a casing, a sensing module for reflecting a light from a target object through a reflecting unit, capturing an optical image, and converting the optical image into an electric signal, a switching unit installed on a side of the casing, an image processing unit installed in the casing and electrically coupled to the switching unit, for encoding the electric signal into an image signal and a display unit installed on another side of the casing. If the switching unit is triggered, the switching unit outputs a switch signal, and the image processing unit mirrors the image signal according to the switch signal to obtain a mirrored image signal, and the display unit receives the mirrored image signal and outputs a mirrored image. If the switching unit is not triggered, the display unit receives the image signal and outputs an image.
    Type: Application
    Filed: July 15, 2010
    Publication date: January 20, 2011
    Applicant: MEDICAL INTUBATION TECHNOLOGY CORPORATION
    Inventor: CHIH-CHUN CHAN
  • Publication number: 20100201796
    Abstract: A contact measuring endoscope apparatus includes a case located at a front end of the apparatus to define a accommodating space; a contact probe connected to and projected from an end of the case by a fixed distance; a light emitting element for emitting light; an image pickup lens arranged in the accommodating space for gathering light reflected from an external object to be measured, so as to form an optical image; a light sensor arranged in the accommodating space to locate adjacent to one side of the image pickup lens for converting the optical image into a digital image; and a measuring module. When the contact probe is caused to contact the object to be measured, a fixed distance between the image pickup lens and the object can be maintained and therefore the digital image can be in the fixed scale.
    Type: Application
    Filed: June 23, 2009
    Publication date: August 12, 2010
    Applicant: MEDICAL INTUBATION TECHNOLOGY CORPORATION
    Inventor: Chih-Chun Chan
  • Publication number: 20100087708
    Abstract: A separable-type endoscope imaging system includes a first body portion, a flexible hollow detection tube, and a second body portion. The first body portion includes an output terminal and a wireless transmitter unit. The flexible hollow detection tube is located at one end of the first body portion and internally provided with a lens assembly for generating an image signal. The second body portion includes an input terminal, a wireless receiver unit, and a display unit. When the output terminal is electrically connected to the input terminal, the image signal is transmitted via the output terminal and the input terminal to the display unit for displaying. On the other hand, when the output terminal is not electrically connected to the input terminal, the image signal is wirelessly transmitted from the wireless transmitter unit to the wireless receiver unit for displaying on the display unit.
    Type: Application
    Filed: June 22, 2009
    Publication date: April 8, 2010
    Applicant: Medical Intubation Technology Corporation
    Inventors: WEN-SHANG CHEN, KIN-CHEONG CHAN, CHIH-CHUN CHAN
  • Publication number: 20100036202
    Abstract: The present invention discloses a four-directional tip deflection device for endoscope including a tip deflecting mechanism, an elastic element, a support portion, a four-directionally flexible body, and first, second, third and fourth wires. The tip deflecting mechanism includes an endoscope lens, and first, second, third and fourth connecting portions facing the endoscope lens. The elastic element is sheathed to the tip deflecting mechanism. The support portion is sheathed to the elastic element. The four-directionally flexible body disposed in a first accommodating space has an end connected to the tip deflecting mechanism and another end connected to the support portion. The first, second, third and fourth wires are connected to the first, second, third and fourth connecting portions respectively. If the first, second, third or fourth wire is pulled, the four-directionally flexible body will be bent into an angle corresponding with a first, second, third or fourth wire direction respectively.
    Type: Application
    Filed: August 7, 2009
    Publication date: February 11, 2010
    Applicant: Medical Intubation Technology Corporation
    Inventors: Wei-Teng Lin, Chih-Chun Chan
  • Publication number: 20090326326
    Abstract: The present invention discloses an endoscope head apparatus comprising a head mechanism, an elastic element, a support portion, a first wire, a second wire and a bilaterally flexible body. The elastic element is connected to the head mechanism and has a first accommodating space therein. The support portion is connected to the elastic element and has a second accommodating space therein. The first wire and the second wire are connected to head mechanism. The bilaterally flexible body is located at the first accommodating space, and connected to the head mechanism and the support portion respectively, and has a first bendable surface and a second bendable surface. The bilaterally flexible body can swing toward the first surface or the second surface by pulling the first wire or the second wire.
    Type: Application
    Filed: November 7, 2008
    Publication date: December 31, 2009
    Applicant: MEDICAL INTUBATION TECHNOLOGY CORPORATION
    Inventors: Wei Teng Lin, Chih Chun Chan
  • Publication number: 20060263265
    Abstract: A micro-separator for separating red blood cells from blood serum in a blood sample is provided. The main mechanism driving the separation of the blood sample is centrifugal force. With physical mechanisms including surface tension and functional microstructures, the red blood cells and the blood serum in a small volume of blood (about 25 micro-liters) are separated. The entire micro-separation apparatus is disposed on a disk-shaped structure. The micro-separator can integrate with other micro-devices such as micro-mixers, micro-distributors or micro-reactors to form a fully functional apparatus. Combining the rotary driver of a CD player and an optical inspection device with a signal processing system, an inexpensive, fully automatic, parallel-processing inspection system is produced.
    Type: Application
    Filed: May 23, 2005
    Publication date: November 23, 2006
    Inventors: Der-Ren Kang, Gwei-Chu Yang, Ker-Jer Huang, Chih-Chun Chan, Hsien-Ming Wu
  • Publication number: 20060263520
    Abstract: A method for improving high-viscosity thick film photoresist coating in UV LIGA process is provided. Two photoresists of identical material but different solvent amount are coated on a silicon wafer in different ways to improve film thickness and flatness. The thick film photoresist SU8-2035 and SU8-2100 from MicroChem Corp. have a viscosity of 7000 (cSt) and 45000 (cSt), respectively. First, SU8-2035 is coated on the wafer at a constant speed, then SU8-2100 is coated from an edge to a center of the wafer in a spiral way, while the mass is measured to control the thickness of photoresist. In the soft baking step, the photoresist and wafer are heated on a hot plate. When the temperature rises over the glass transition temperature of the photoresist, the photoresist spreads on the wafer uniformly due to lower viscosity, cohesion and surface tension, while the wafer is rotated to improve the flatness of the photoresist.
    Type: Application
    Filed: May 23, 2005
    Publication date: November 23, 2006
    Inventors: Der-Ren Kang, Chih-Chun Chan, Ker-Jer Huang, Soon-Lin Chen, Hsien-Ming Wu