Patents by Inventor Sung Chel Hwang

Sung Chel Hwang 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: 20150087360
    Abstract: A device and method process voice communication service. A mobile terminal device of the present disclosure includes a microphone arranged at one end of a body of the device; a speaker arranged close to the microphone; a transceiver arranged at the other end of the body; a codec including a coder connected to the microphone, a decoder connected to the speaker, and a switch of which one node is connected to one of the coder and the decoder selectively and the other node is connected to the transceiver; and a communication controller which controls the switch to establish a path between the coder and the transceiver and enables the speaker in speakerphone mode.
    Type: Application
    Filed: December 1, 2014
    Publication date: March 26, 2015
    Inventors: Chan Ho Park, Jae Hun Jeong, Hyoung Ju Lee, Sung Chel Hwang
  • Patent number: 8914076
    Abstract: A device and method process voice communication service. A mobile terminal device of the present disclosure includes a microphone arranged at one end of a body of the device; a speaker arranged close to the microphone; a transceiver arranged at the other end of the body; a codec including a coder connected to the microphone, a decoder connected to the speaker, and a switch of which one node is connected to one of the coder and the decoder selectively and the other node is connected to the transceiver; and a communication controller which controls the switch to establish a path between the coder and the transceiver and enables the speaker in speakerphone mode.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: December 16, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chan Ho Park, Jae Hun Jeong, Hyoung Ju Lee, Sung Chel Hwang
  • Publication number: 20120178385
    Abstract: A device and method process voice communication service. A mobile terminal device of the present disclosure includes a microphone arranged at one end of a body of the device; a speaker arranged close to the microphone; a transceiver arranged at the other end of the body; a codec including a coder connected to the microphone, a decoder connected to the speaker, and a switch of which one node is connected to one of the coder and the decoder selectively and the other node is connected to the transceiver; and a communication controller which controls the switch to establish a path between the coder and the transceiver and enables the speaker in speakerphone mode.
    Type: Application
    Filed: January 9, 2012
    Publication date: July 12, 2012
    Applicant: SAMSUNG ELECTRONICS CO., lTD.
    Inventors: Chan Ho Park, Jae Hun Jeong, Hyoung Ju Lee, Sung Chel Hwang