Patents by Inventor Li-Ho Yao

Li-Ho Yao 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: 20060112209
    Abstract: An SD memory card integrated with a USB interface plug. Between a top cover and a board, a circuit board is mounted and SD conductive point contacts are set at a first edge, and an extended plate is formed at a second edge. A USB conductive board is applied to add the thickness of the extended plate to meet the USB hub requirement. In this way, SD and USB plugs can be integrated in a single memory card.
    Type: Application
    Filed: November 24, 2004
    Publication date: May 25, 2006
    Inventor: Li-Ho Yao
  • Publication number: 20060112197
    Abstract: A dual-interface-plug memory card includes an SD, CF or MS memory card. A strobe control unit is applied to control a USB control chip and a memory card control chip. When a USB plug is inserted to a USB hub, the strobe control unit is activated, information can be accessed through the two control chips. On the contrary, if the memory card plug is inserted, the strobe control unit is de-activated and information can only be accessed through the memory card chip. In this way, the two control chips can work independently.
    Type: Application
    Filed: November 24, 2004
    Publication date: May 25, 2006
    Inventor: Li-Ho Yao
  • Patent number: 7040919
    Abstract: A universal series bus (USB) has a grille-like top frame, a bottom frame and a circuit board mounted between the top frame and the bottom frame. Both the top and bottom frames are defined with multiple corresponding slots, and accordingly a rib is formed between each two adjacent slots. The circuit board has a top side and a bottom side, wherein USB contacts are formed on both sides and correspond to the slots. Therefore, when the USB plug is inserted into a standard USB port, the USB contacts formed on one side correspondingly touch the conductive pins. On the other side of the USB plug, since the protruding ribs abut against resilient metal tongues inside the USB port, the contacts on the other side will not touch to the metal tongues thus avoiding the occurrence of short circuit.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: May 9, 2006
    Inventor: Li-Ho Yao
  • Publication number: 20060040549
    Abstract: A universal series bus (USB) has a grille-like top frame, a bottom frame and a circuit board mounted between the top frame and the bottom frame. Both the top and bottom frames are defined with multiple corresponding slots, and accordingly a rib is formed between each two adjacent slots. The circuit board has a top side and a bottom side, wherein USB contacts are formed on both sides and correspond to the slots. Therefore, when the USB plug is inserted into a standard USB port, the USB contacts formed on one side correspondingly touch the conductive pins. On the other side of the USB plug, since the protruding ribs abut against resilient metal tongues inside the USB port, the contacts on the other side will not touch to the metal tongues thus avoiding the occurrence of short circuit.
    Type: Application
    Filed: August 18, 2004
    Publication date: February 23, 2006
    Inventor: Li-Ho Yao
  • Patent number: 6736678
    Abstract: A memory card interface adapter has an adapter body with the appearance and size the same as a CF card, a chamber defined in the adapter body to receive a memory card, an L-shaped circuit board placed inside the adapter body, and a connector and a connecting port both disposed in the adapter body. The connector and the connecting port are respectively corresponded to a CF card standard and a USB interface standard. Therefore when the memory card is installed in the adapter body and electrically linked with the circuit board, the memory card is able to be accessed by an external device with a CF card interface or a USB interface.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: May 18, 2004
    Inventor: Li-Ho Yao
  • Publication number: 20040002264
    Abstract: A memory card interface adapter has an adapter body with the appearance and size the same as a CF card, a chamber defined in the adapter body to receive a memory card, an L-shaped circuit board placed inside the adapter body, and a connector and a connecting port both disposed in the adapter body. The connector and the connecting port are respectively corresponded to a CF card standard and a USB interface standard. Therefore when the memory card is installed in the adapter body and electrically linked with the circuit board, the memory card is able to be accessed by an external device with a CF card interface or a USB interface.
    Type: Application
    Filed: June 26, 2002
    Publication date: January 1, 2004
    Inventor: Li-Ho Yao
  • Patent number: 6658516
    Abstract: A multi-interface memory card and an adapter module for the memory card are described to enable convenient transfer of data between the memory card and a computer. The multi-interface memory card has a micro controller, a memory unit, a USB interface, an IEEE 1394 interface, and a product interface. The memory unit is connected to the micro controller, such that external computers or electronic products can read data from or write data to said memory unit under the control of the micro controller. The USB and IEEE 1394 interfaces are connected to the memory unit via the micro controller for controlling data access. The product interface is provided for connecting to a digital product to read or write data. The adapter module is provided to conveniently connect the multi-interface memory card to the computer.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: December 2, 2003
    Inventor: Li-Ho Yao
  • Publication number: 20030172219
    Abstract: A multi-interface memory card and an adapter module for the memory card are disclosed to enable convenient transfer of data between the memory card and a computer. The multi-interface memory card has a micro controller, a memory unit, a USB interface, an IEEE 1394 interface, and a product interface. The memory unit is connected to the micro controller, such that external computers or electronic products can read data from or write data to said memory unit under the control of the micro controller. The USB and IEEE 1394 interfaces are connected to the memory unit via the micro controller for controlling data access. The product interface is provided for connecting to a digital product to read or write data. The adapter module is provided to conveniently connect the multi-interface memory card to the computer.
    Type: Application
    Filed: April 11, 2000
    Publication date: September 11, 2003
    Inventor: Li-Ho Yao
  • Patent number: 6385677
    Abstract: A dual interface memory card and an adapter module for the memory card are disclosed to convenient transfer data between the memory card and a computer. The dual interface memory card has a memory unit and a micro control unit connected to the memory unit. The micro control unit includes a USB interface for connecting to a computer whereby the computer is able to read data from and write data to the memory unit, and a host interface for connecting to an electronic product which has the memory card installed therein such that data output from the electronic product can be stored in the memory unit. The adapter module is provided to conveniently connect the dual interface memory card to the computer.
    Type: Grant
    Filed: November 26, 1999
    Date of Patent: May 7, 2002
    Inventor: Li-Ho Yao
  • Patent number: 6050848
    Abstract: An adapter base for receiving a cartridge memory is disclosed, in which a recess is defined in the adapter base by two opposed side walls, a bottom wall and an end wall contiguous with the side walls. A cartridge memory is inserted into the adapter base, and the assembly of the adapter base. The cartridge memory can be received in at least two devices with recesses dimensioned respectively according to the memo cartridge alone or the adapter base containing the memo cartridge.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: April 18, 2000
    Inventor: Li-Ho Yao
  • Patent number: 6017230
    Abstract: A seat for a cassette memory is disclosed.
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: January 25, 2000
    Inventor: Li-Ho Yao
  • Patent number: 6014010
    Abstract: A charger compatible with different-sized rechargeable batteries of mobile telephones includes a body for charging the battery and an adapter optionally utilized to electrically connect the rechargeable battery with the body. In a preferred embodiment, the body is detachably mounted to an under face of the adapter and electrically connected with the adapter. The battery is detachably mounted to a top face of the adapter and electrically connected with the adapter. The adapter may have different configurations adaptable for different-sized mobile telephone batteries. In an alternative preferred embodiment, the battery is directly mounted to a surface of the body and electrically connected with the body. With this arrangement, expense for purchasing a different charger can be eliminated when a user attempts to use a second mobile telephone having a size different from that of a first mobile telephone, because only the adapter needs to be replaced and the first body can be re-used.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: January 11, 2000
    Inventor: Li-Ho Yao
  • Patent number: 6013387
    Abstract: A hydrogen absorbing alloy is disclosed for use as the negative electrode in alkaline batteries. The general formula of the alloy is AB.sub.x M.sub.y, wherein A is selected from the rare earth element La or a mischmetal thereof; B is selected from the group consisting of Ni, Fe, Mn, Cr, Cu, Co, and mixtures thereof; M is selected from the group consisting of Al, In, Zn, Sn, Ga, Si, Ge, Bi, and mixtures thereof; 4.5.ltoreq.x.ltoreq.5.5; and 0.3<y.ltoreq.0.6. This alloy has a longer cycle life, along with larger capacity and better reactivity.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: January 11, 2000
    Assignee: Li-Ho Yao
    Inventors: Li-Ho Yao, Yongchang Huang, Wenhua Liu
  • Patent number: 5653621
    Abstract: A toy building block puzzle includes a first plurality of differently shaped tall hollow blocks which include lugs and slots on side walls thereof and protrusions and recesses on respective upper and lower sides thereof by which blocks of same or different shapes may be detachably interconnected to each other in vertical and horizontal planes. A second plurality of building elements comprises of adapters shaped as rods to increase permutations of interconnection between the blocks of the first group.
    Type: Grant
    Filed: January 3, 1996
    Date of Patent: August 5, 1997
    Inventor: Li-ho Yao
  • Patent number: 5601470
    Abstract: A toy building block puzzle comprises a plurality of at least five differently shaped building blocks. Each block has a peripheral side wall which may include a plurality of lugs and recesses. The lugs and recesses are shaped and sized to interlock two or more blocks together in a horizontal plane by which puzzles of geometric and alphabetic configurations may be formed.
    Type: Grant
    Filed: January 2, 1996
    Date of Patent: February 11, 1997
    Inventor: Li-ho Yao
  • Patent number: D354949
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: January 31, 1995
    Inventor: Li-Ho Yao
  • Patent number: D386743
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: November 25, 1997
    Inventor: Li-ho Yao
  • Patent number: D396228
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: July 21, 1998
    Inventor: Li-Ho Yao
  • Patent number: D404384
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: January 19, 1999
    Inventor: Li-Ho Yao
  • Patent number: D406573
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: March 9, 1999
    Inventor: Li-Ho Yao