Patents by Inventor Chang REN

Chang REN 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: 12211004
    Abstract: This disclosure describes a system for tracking removal or placement of items at inventory locations with a materials handling facility. In some instances, a user may remove an item from an inventory location and the inventory management system may detect that removal and update a user item list associated with the user to include an item identifier representative of the removed item. Likewise, if the user places an item at an inventory location, the inventory management system may detect that placement and update the user item list to remove an item identifier representative of the placed item.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: January 28, 2025
    Assignee: Amazon Technologies, Inc.
    Inventors: Dilip Kumar, Elie Micah Kornfield, Alexander Clark Prater, Sridhar Boyapati, Xiaofeng Ren, Chang Yuan
  • Publication number: 20240115339
    Abstract: The present disclosure relates to the field of medical instruments, disclosing an endoscope control method. The method comprises: controlling a motion of an endoscope, the endoscope comprising a main body, a first imaging unit, a second imaging unit and an end instrument protruding from a distal end of the main body; obtaining a first image from the first imaging unit; obtaining a second image from the second imaging unit, wherein the first and the second images have different fields of view and include images of the end instrument; based on the first and second images, generating a composite scene image to remove an actual image of the end instrument; and generating a virtual image of the end instrument in the composite scene image.
    Type: Application
    Filed: October 28, 2022
    Publication date: April 11, 2024
    Inventors: Dawei SUN, Lan ZHU, Chang REN
  • Publication number: 20240115338
    Abstract: The present disclosure relates to the field of medical instruments, disclosing an endoscope master-slave motion control method. The endoscope includes an operating arm, a main body disposed at an end of the operating arm, a first imaging unit, a second imaging unit, and an end instrument protruding from a distal end of the main body.
    Type: Application
    Filed: October 28, 2022
    Publication date: April 11, 2024
    Inventors: Lan ZHU, Dawei SUN, Chang REN
  • Patent number: 9540848
    Abstract: A door lock (10) includes a driving device (30) having an outer spindle (36) and an outer handle (38) mounted to the outer spindle (36). A mounting member (56) is rotatably mounted in a compartment (46) of the outer handle (38). A positioning member (72) is movably received in a groove (54) of the outer handle (38). When a lock core (74) disengages from the mounting member (56), the mounting member (56) cannot move along a longitudinal axis but can pivot about a pivotal axis relative to the outer handle (38) to change a positional relationship between first and second holes (64, 66) of the mounting member (56). After the lock core (74) engages with the mounting member (56), the mounting member (56) cannot pivot about the pivotal axis relative to the outer handle (38).
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: January 10, 2017
    Assignee: I-Tek Metal Mfg. Co., Ltd.
    Inventor: Chang-Ren Wu
  • Patent number: 7793838
    Abstract: A method for conducting a sales transaction. The method can include receiving at a terminal within a store a first identifier generated for a first item of merchandise selected by a customer while the customer is located within the store. The method also can include receiving from a virtual shopping cart a second identifier generated for a second item of merchandise. The first identifier and the second identifier can be processed in the sales transaction.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: September 14, 2010
    Assignee: International Business Machines Corporation
    Inventors: James P. Appleyard, Chang-Ren He, Shiju Mathai
  • Publication number: 20080244924
    Abstract: A drying method for use of latent heat includes the following steps: A. installing a heating plate and a latent heat device having wax in a dry environmental space; B. placing an article to be dried in the dry environmental space; C. absorbing outside heat energy with the heating plate for drying process; D. utilizing the latent heat device to accumulate heat energy; and E. releasing the heat energy from the latent heat device for drying process. A drying apparatus for use of latent heat includes a box, a heating plate provided on the box, and a latent heat device provided in the box. The box has an entrance and a vent. The entrance is provided with a door to seal the entrance. The latent heat device comprises wax therein to do heat exchange through for drying purpose.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 9, 2008
    Inventors: Chang-Ren Chen, Juh-Ping Chang, Huann-Ming Chou, Rong-Fang Hong, Atul Sharma
  • Publication number: 20070235527
    Abstract: A method for conducting a sales transaction. The method can include receiving at a terminal within a store a first identifier generated for a first item of merchandise selected by a customer while the customer is located within the store. The method also can include receiving from a virtual shopping cart a second identifier generated for a second item of merchandise. The first identifier and the second identifier can be processed in the sales transaction.
    Type: Application
    Filed: April 5, 2006
    Publication date: October 11, 2007
    Applicant: International Business Machines Corporation
    Inventors: James Appleyard, Chang-Ren He, Shiju Mathai