Patents by Inventor Pi-Feng Shih

Pi-Feng Shih 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: 10348126
    Abstract: A battery switching method applicable to an electronic device is provided. The electronic device comprises a first battery and a second battery. The method comprises: (a) switching the electronic device to a sleep mode from a normal mode; (b) switching a power supply of the electronic device to the second battery according to a removing signal triggered by removing the first battery; (c) switching the power supply of the electronic device to the first battery according to an inserting signal triggered by inserting the first battery; (d) updating parameters of the first battery; and (e) switching the electronic device to the normal mode from the sleep mode.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: July 9, 2019
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Wen-Hann Tsai, Pi-Feng Shih, Chin-Kun Lai
  • Publication number: 20170126055
    Abstract: A battery switching method applicable to an electronic device is provided. The electronic device comprises a first battery and a second battery. The method comprises: (a) switching the electronic device to a sleep mode from a normal mode; (b) switching a power supply of the electronic device to the second battery according to a removing signal triggered by removing the first battery; (c) switching the power supply of the electronic device to the first battery according to an inserting signal triggered by inserting the first battery; (d) updating parameters of the first battery; and (e) switching the electronic device to the normal mode from the sleep mode.
    Type: Application
    Filed: October 24, 2016
    Publication date: May 4, 2017
    Inventors: WEN-HANN TSAI, PI-FENG SHIH, CHIN-KUN LAI
  • Publication number: 20130217434
    Abstract: A method and a system for transmitting data and an electronic apparatus using the method are provided. The electronic apparatus is detachably coupled to an external apparatus. When the electronic apparatus performs data transmission with the external apparatus via a first transmission path, whether a state change signal is generated is checked. After the state change signal is generated, the follow-up data to be transmitted to the external apparatus is stored temporarily in a virtual storage interface. And, after a second transmission path is established between the electronic apparatus and the external apparatus, the data stored temporarily in the virtual storage interface is transmitted to the external apparatus via the second transmission path, so as to continue the data transmission with the external apparatus.
    Type: Application
    Filed: February 7, 2013
    Publication date: August 22, 2013
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Shih-Cheng Chou, Shun-Lee Chang, Pi-Feng Shih, Yung-Liang Miao
  • Patent number: 7930556
    Abstract: A fingerprint method for access control includes the steps of: providing an application server (20) for controlling access of different users; providing a database (40) connected to the application server for storing original fingerprint data of each user; scanning a fingerprint of a user through a handheld device (10), and obtaining fingerprint data of the scanned fingerprint; establishing a wireless communication channel between the handheld device and the application server, and transmitting the fingerprint data to the application server through the wireless communication channel; receiving the fingerprint data from the handheld device by the application server; determining whether the fingerprint data is the same as the original fingerprint data of the user in the database; and the user to access an access control device (30) connected to the application server if the fingerprint data is the same as the original fingerprint data stored in the database.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: April 19, 2011
    Assignee: Chi Mei Communication Systems, Inc.
    Inventor: Pi-Feng Shih
  • Publication number: 20100122023
    Abstract: A portable electronic device includes a random access memory, a non-volatile random access memory, a detecting unit, and a processing unit. The detecting unit is configured to detect an acceleration of the portable electronic device. The processing unit is configured to compare a value of the acceleration of the portable electronic device with a predetermined parameter. If the value of the acceleration is greater or equal to the predetermined parameter, data is copied from the random access memory to the non-volatile random access memory.
    Type: Application
    Filed: July 1, 2009
    Publication date: May 13, 2010
    Applicant: CHI MEI COMMUNICATION SYSTEMS, INC.
    Inventor: PI-FENG SHIH
  • Publication number: 20090313583
    Abstract: A system and method for associating functions of an electronic device comprises setting one or more associated functions and storing the associated functions onto a storage system of the electronic device, searching the storage system and determining if there are functions associated with a selected function, and displaying sub-options of the selected function as well as the functions associated with the selected function.
    Type: Application
    Filed: December 10, 2008
    Publication date: December 17, 2009
    Applicant: CHI MEI COMMUNICATION SYSTEMS, INC.
    Inventor: PI-FENG SHIH
  • Publication number: 20090097199
    Abstract: A portable electronic device (10) includes a data cable (105) and a housing (101). The data cable is configured to receive or transfer data. The housing includes a receiving portion (103) formed therein; the receiving portion is configured for receiving the data cable.
    Type: Application
    Filed: December 27, 2007
    Publication date: April 16, 2009
    Applicant: CHI MEI COMMUNICATION SYSTEMS, INC.
    Inventor: PI-FENG SHIH
  • Publication number: 20090083839
    Abstract: A fingerprint method for access control includes the steps of: providing an application server (20) for controlling access of different users; providing a database (40) connected to the application server for storing original fingerprint data of each user; scanning a fingerprint of a user through a handheld device (10), and obtaining fingerprint data of the scanned fingerprint; establishing a wireless communication channel between the handheld device and the application server, and transmitting the fingerprint data to the application server through the wireless communication channel; receiving the fingerprint data from the handheld device by the application server; determining whether the fingerprint data is the same as the original fingerprint data of the user in the database; and the user to access an access control device (30) connected to the application server if the fingerprint data is the same as the original fingerprint data stored in the database.
    Type: Application
    Filed: December 11, 2007
    Publication date: March 26, 2009
    Applicant: Chi Mei Communication Systems, Inc.
    Inventor: Pi-Feng Shih