Patents by Inventor De-Jun Zeng

De-Jun Zeng 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).

  • Video graphics array interface switch apparatus
    Patent number: 8321621
    Abstract: A video graphics array (VGA) interface switch apparatus includes first to third VGA interfaces, a single-pole double-throw (SPDT) switch, a switch control chip, and first to sixth electronic switches. The first VGA interface is connected to the second and third VGA interfaces through the switch control chip and the electronic switches. The SPDT switch is used to control the first VGA interface to be selectively connected to the second or third VGA interface.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: November 27, 2012
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Han-Bing Zhang, Jian-Chun Pan, De-Jun Zeng
  • Switch apparatus for switching display, keyboard, and mouse
    Patent number: 8255609
    Abstract: A switch apparatus includes first to third video graphics array (VGA) interfaces, first to sixth universal serial bus (USB) interfaces, a single-pole double-throw (SPDT) switch, and first to eighteenth electronic switches. The first VGA interface is connected to the second and third VGA interfaces through the electronic switches. The first USB interface is connected the second and third USB interfaces through the electronic switches. The fourth USB interface is connected to the fifth and sixth USB interfaces through the electronic switches. The SPDT switch is used to control the first VGA interface to be selectively connected to the second or third VGA interface, and control the first USB interface to be selectively connected to the second or third USB interface, and control the fourth USB interface to be selectively connected to the fifth or sixth USB interface.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: August 28, 2012
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Jian-Chun Pan, De-Jun Zeng, Chung-Chi Huang
  • SWITCH APPARATUS FOR SWITCHING DISPLAY, KEYBOARD, AND MOUSE
    Publication number: 20120131254
    Abstract: A switch apparatus includes first to third video graphics array (VGA) interfaces, first to sixth universal serial bus (USB) interfaces, a single-pole double-throw (SPDT) switch, and first to eighteenth electronic switches. The first VGA interface is connected to the second and third VGA interfaces through the electronic switches. The first USB interface is connected the second and third USB interfaces through the electronic switches. The fourth USB interface is connected to the fifth and sixth USB interfaces through the electronic switches. The SPDT switch is used to control the first VGA interface to be selectively connected to the second or third VGA interface, and control the first USB interface to be selectively connected to the second or third USB interface, and control the fourth USB interface to be selectively connected to the fifth or sixth USB interface.
    Type: Application
    Filed: December 7, 2010
    Publication date: May 24, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: JIAN-CHUN PAN, DE-JUN ZENG, CHUNG-CHI HUANG
  • VIDEO GRAPHICS ARRAY INTERFACE SWITCH APPARATUS
    Publication number: 20120124267
    Abstract: A video graphics array (VGA) interface switch apparatus includes first to third VGA interfaces, a single-pole double-throw (SPDT) switch, a switch control chip, and first to sixth electronic switches. The first VGA interface is connected to the second and third VGA interfaces through the switch control chip and the electronic switches. The SPDT switch is used to control the first VGA interface to be selectively connected to the second or third VGA interface.
    Type: Application
    Filed: December 1, 2010
    Publication date: May 17, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD
    Inventors: HAN-BING ZHANG, JIAN-CHUN PAN, DE-JUN ZENG
  • Data transfer cable for programmable logic devices
    Patent number: 7746115
    Abstract: A programmable logic device (PLD) data transfer cable includes a parallel interface, a programming interface, and a logic control circuit. The parallel interface is used for connecting to PLDs. The logic control circuit includes a first group of transmission channels, a second group of transmission channels, a first group of switches, and a second group of switches. The first and second group of switches control the working status of the first and second group of transmission channels respectively. The electrical connections between pins of the parallel interface and the programming interface when first group of transmission channels are activated are different with those when second group of transmission channels are activated.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: June 29, 2010
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Chung-Chi Huang, Guang-Dong Yuan, Jian-Chun Pan, De-Jun Zeng, Wei-Min Zhang
  • DATA TRANSFER CABLE FOR PROGRAMMABLE LOGIC DEVICES
    Publication number: 20090237112
    Abstract: A programmable logic device (PLD) data transfer cable includes a parallel interface, a programming interface, and a logic control circuit. The parallel interface is used for connecting to PLDs. The logic control circuit includes a first group of transmission channels, a second group of transmission channels, a first group of switches, and a second group of switches. The first and second group of switches control the working status of the first and second group of transmission channels respectively. The electrical connections between pins of the parallel interface and the programming interface when first group of transmission channels are activated are different with those when second group of transmission channels are activated.
    Type: Application
    Filed: September 8, 2008
    Publication date: September 24, 2009
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD ., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: CHUNG-CHI HUANG, GUANG-DONG YUAN, JIAN-CHUN PAN, DE-JUN ZENG, WEI-MIN ZHANG