Patents by Inventor Szu-Tsung Chang

Szu-Tsung Chang 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: 8360595
    Abstract: The present invention discloses a light-guiding structure of a translucent press key including a keypad region including a circular hollow area, and a diffuser and a light source module sequentially disposed below the keypad region. The light source module includes a reflective film and a light generating unit, in which the reflective film has a through hole formed at a position opposite to the middle of the circular hollow area, and the light generating unit is coupled to a control circuit of the keypad region and generates a light source to pass through the through hole. The light-guiding structure of a translucent press key of the present invention has the advantages of a low cost and highly uniform light distribution.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: January 29, 2013
    Assignees: Inventec Appliances (Shanghai) Co., Ltd., Inventec Appliances Corp
    Inventor: Szu-Tsung Chang
  • Patent number: 8331755
    Abstract: A multi-axial light guide module comprises a light guide, a light-emitting unit, a display unit and a light-guiding unit. The light guide has a light-emitting portion connects to a curved portion, wherein the light-emitting portion has at least two axial light-emitting planes to generate at least two axial light-emitting effects; the display unit has a first axial display layer corresponding to a first axial light-emitting plane, and a second axial display layer corresponding to a second axial light-emitting plane; the light-guiding unit is disposed on the light emitting portion, so as to enhance the light-emitting efficiency of the light-emitting portion; and, through the display unit and the light-guiding unit, the light-emitting and display effects of the multi-axial light-emitting plane on the light-emitting portion can be improved. Thereby, users may conveniently see the light-emitting display from different axial planes, in order to achieve the purposes of message prompt and indication.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: December 11, 2012
    Assignee: Inventec Appliances Corp.
    Inventor: Szu-Tsung Chang
  • Publication number: 20110249447
    Abstract: The present invention discloses a light-guiding structure of a translucent press key including a keypad region including a circular hollow area, and a diffuser and a light source module sequentially disposed below the keypad region. The light source module includes a reflective film and a light generating unit, in which the reflective film has a through hole formed at a position opposite to the middle of the circular hollow area, and the light generating unit is coupled to a control circuit of the keypad region and generates a light source to pass through the through hole. The light-guiding structure of a translucent press key of the present invention has the advantages of a low cost and highly uniform light distribution.
    Type: Application
    Filed: February 24, 2011
    Publication date: October 13, 2011
    Applicants: INVENTEC APPLIANCES CORP., INVENTEC APPLIANCES (SHANGHAI) CO. LTD.
    Inventor: SZU-TSUNG CHANG
  • Publication number: 20090273949
    Abstract: A light guiding system for multiple areas is provided for a mobile communication device with a keypad module. The light guiding system includes a lighting source unit, a light guiding unit, and a control circuit unit. The lighting source unit has at least one light emitting member for generating a single lighting or a combined lighting. The control circuit unit is utilized for controlling the light emitting members of the lighting source unit to emit the single or combined lighting. The light guiding unit is provided for guiding the single or the combined lighting to a portion of or an entire area of the keypad module. Accordingly, the portion of the keypad module or the entire area of the keypad module is lit by the single/combined lighting. The different lighting areas of the keypad module provides a guiding effect that improves the using efficiency.
    Type: Application
    Filed: April 30, 2008
    Publication date: November 5, 2009
    Inventors: Steven Tseng, Szu-Tsung Chang
  • Publication number: 20090086502
    Abstract: A multi-axial light guide module comprises a light guide, a light-emitting unit, a display unit and a light-guiding unit. The light guide has a light-emitting portion connects to a curved portion, wherein the light-emitting portion has at least two axial light-emitting planes to generate at least two axial light-emitting effects; the display unit has a first axial display layer corresponding to a first axial light-emitting plane, and a second axial display layer corresponding to a second axial light-emitting plane; the light-guiding unit is disposed on the light emitting portion, so as to enhance the light-emitting efficiency of the light-emitting portion; and, through the display unit and the light-guiding unit, the light-emitting and display effects of the multi-axial light-emitting plane on the light-emitting portion can be improved. Thereby, users may conveniently see the light-emitting display from different axial planes, in order to achieve the purposes of message prompt and indication.
    Type: Application
    Filed: September 24, 2008
    Publication date: April 2, 2009
    Inventor: Szu-Tsung Chang
  • Patent number: 7479760
    Abstract: A mobile communication device is provided for inserting into a charging seat. The charging seat has a reception chamber and a charging circuit with a first coupling section. The mobile communication device includes: an outer casing for inserting into the reception chamber along a predetermined direction, and a first charging port formed at a lateral side surface of the outer casing. When the outer casing is inserted into the reception chamber, the first coupling section of the charging circuit extends into the first charging port in the outer casing to permit the charging circuit to conduct a charging operation.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: January 20, 2009
    Assignee: Inventec Appliances Corp.
    Inventors: Szu-Tsung Chang, Jun Rao, Chiung-Hsien Wu
  • Publication number: 20070090789
    Abstract: A mobile communication device is provided for inserting into a charging seat. The charging seat has a reception chamber and a charging circuit with a first coupling section. The mobile communication device includes: an outer casing for inserting into the reception chamber along a predetermined direction, and a first charging port formed at a lateral side surface of the outer casing. When the outer casing is inserted into the reception chamber, the first coupling section of the charging circuit extends into the first charging port in the outer casing to permit the charging circuit to conduct a charging operation.
    Type: Application
    Filed: October 23, 2006
    Publication date: April 26, 2007
    Inventors: Szu-Tsung Chang, Jun Rao, Chiung-Hsien Wu
  • Patent number: D573567
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: July 22, 2008
    Assignee: Inventec Appliances Corp.
    Inventors: Szu-Tsung Chang, Jun Rao, Chiung-Hsien Wu
  • Patent number: D590792
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: April 21, 2009
    Assignee: Inventec Appliances Corp.
    Inventors: Szu-Tsung Chang, Jun Rao, Chiung-Hsien Wu