Patents by Inventor Yawei Ma

Yawei Ma 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: 8688177
    Abstract: A sliding mechanism comprising a double-folded flexible printed circuit board (FPC); a stiffener coupled to the double-folded FPC; first pins; second pins; and an opening defined by a first cover, wherein when the double-folded FPC and the stiffener move, within the opening, in synchronization along a first range of motion to an open position of the slider mechanism, the stiffener makes contact with the first pins at the open position, and when the double-folded FPC and the stiffener move, within the opening, in synchronization along a second range of motion to a closed position of the slider mechanism, the stiffener makes contact with the second pins at the closed position.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: April 1, 2014
    Assignees: Sony Corporation, Sony Mobile Communications AB
    Inventors: Yawei Ma, Ichiro Yamada, Chandrashekar Subba
  • Patent number: 8484803
    Abstract: A rotational hinge including a first casing linkage; a second casing linkage; a hinge linkage; and a synchronization linkage, wherein the synchronization linkage is coupled to the first casing linkage and the second casing linkage to synchronize a fixed rotational axis and a moving rotational axis that provides one or more degrees of rotation.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: July 16, 2013
    Assignees: Sony Corporation, Sony Mobile Communications AB
    Inventors: Yawei Ma, Ichiro Yamada, Mi Zhou
  • Publication number: 20120157171
    Abstract: A sliding mechanism comprising a double-folded flexible printed circuit board (FPC); a stiffener coupled to the double-folded FPC; first pins; second pins; and an opening defined by a first cover, wherein when the double-folded FPC and the stiffener move, within the opening, in synchronization along a first range of motion to an open position of the slider mechanism, the stiffener makes contact with the first pins at the open position, and when the double-folded FPC and the stiffener move, within the opening, in synchronization along a second range of motion to a closed position of the slider mechanism, the stiffener makes contact with the second pins at the closed position.
    Type: Application
    Filed: July 23, 2010
    Publication date: June 21, 2012
    Applicant: SONY MOBILE COMMUNICATIONS AB
    Inventors: Yawei Ma, Ichiro Yamada, Chandrashekar Subba
  • Patent number: 8149581
    Abstract: An electronic device includes separate housings, one includes a keyboard and the other includes a display screen, a pair of cam assemblies and a pair of actuator arms. Each cam assembly has first and second connection parts that are rotationally connected, and are configured so that the first and second connection parts tilt relative to each other responsive to rotation of one relative to the other. The first connection parts of both cam assemblies are connected to spaced apart locations on the first housing. The actuator arms are connected on one end to spaced apart locations on the second housing and are connected on the other end to different ones of the second connection parts of both cam assemblies. Relative movement of the first and second housings rotates the first connection part relative to the second connection part of both cam assemblies and tilts the first housing relative to the second housing.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: April 3, 2012
    Assignee: Sony Ericssom Mobile Communications AB
    Inventors: Yawei Ma, Ichiro Yamada
  • Publication number: 20120047685
    Abstract: A rotational hinge including a first casing linkage; a second casing linkage; a hinge linkage; and a synchronization linkage, wherein the synchronization linkage is coupled to the first casing linkage and the second casing linkage to synchronize a fixed rotational axis and a moving rotational axis that provides one or more degrees of rotation.
    Type: Application
    Filed: August 26, 2010
    Publication date: March 1, 2012
    Applicant: SONY ERICSSON MOBILE COMMUNICATIONS AB
    Inventors: Yawei Ma, Ichiro Yamada, Mi Zhou
  • Patent number: 8072741
    Abstract: A mobile device has a first portion and a second portion. The first portion includes a body and a first magnet member. The second portion may be movably connected with the first portion and includes a body, a shutter door and a second magnet member. An opening is defined in the body of the second portion and the shutter door is operable to move from an open position to a closed position to cover at least a portion of the opening when the shutter door. The second magnet member is connected to the shutter door so that, when the second magnet member is aligned with the first magnet member, the shutter door is positioned in the closed position.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: December 6, 2011
    Assignee: Sony Ericsson Mobile Communications AB
    Inventors: Yawei Ma, Ichiro Yamada, Hong Zuo
  • Publication number: 20110164352
    Abstract: A sliding mechanism including a first base member including a first slider mechanism having a first range of motion; a second base member including a second slider mechanism having a second range of motion; and a synchronization linker that links the first range of motion associated with the first slider mechanism during a sliding operation and the second range of motion associated with the second slider mechanism during the sliding operation, wherein a coupling of the first range of motion and the second range of motion during the sliding operation causes the first base member to gradually arc away and tilt from the second base member.
    Type: Application
    Filed: January 7, 2010
    Publication date: July 7, 2011
    Applicant: SONY ERICSSON MOBILE COMMUNICATIONS AB
    Inventors: Yawei Ma, Ichiro Yamada
  • Publication number: 20110149484
    Abstract: An electronic device includes separate housings, one includes a keyboard and the other includes a display screen, a pair of cam assemblies and a pair of actuator arms. Each cam assembly has first and second connection parts that are rotationally connected, and are configured so that the first and second connection parts tilt relative to each other responsive to rotation of one relative to the other. The first connection parts of both cam assemblies are connected to spaced apart locations on the first housing. The actuator arms are connected on one end to spaced apart locations on the second housing and are connected on the other end to different ones of the second connection parts of both cam assemblies. Relative movement of the first and second housings rotates the first connection part relative to the second connection part of both cam assemblies and tilts the first housing relative to the second housing.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 23, 2011
    Inventors: Yawei Ma, Ichiro Yamada
  • Publication number: 20110096471
    Abstract: A mobile device has a first portion and a second portion. The first portion includes a body and a first magnet member. The second portion may be movably connected with the first portion and includes a body, a shutter door and a second magnet member. An opening is defined in the body of the second portion and the shutter door is operable to move from an open position to a closed position to cover at least a portion of the opening when the shutter door. The second magnet member is connected to the shutter door so that, when the second magnet member is aligned with the first magnet member, the shutter door is positioned in the closed position.
    Type: Application
    Filed: October 22, 2009
    Publication date: April 28, 2011
    Applicant: SONY ERICSSON MOBILE COMMUNICATIONS AB
    Inventors: Yawei Ma, Ichiro Yamada, Hong Zuo
  • Publication number: 20040121825
    Abstract: The present invention discloses a rotary-wing type mobile telephone, the mobile telephone comprises a mobile telephone body and a rotary wing; the rotary wing is pivotally connecting to the mobile telephone body by a rotating shaft, wherein the rotating shaft comprises: a spindle provided at the center of the rotating shaft; a fixing member hitched on the spindle and fixedly connected with the rotary wing of mobile telephone; a rotating member pivotally provided on the spindle and fixedly connected with the mobile telephone body; a limit mechanism provided between the fixing member and the rotating member, the limit mechanism limits the rotary wing in the range of rotating through 180 degrees clockwise or counterclockwise.
    Type: Application
    Filed: August 15, 2003
    Publication date: June 24, 2004
    Inventors: Yawei Ma, Kejiao Luo, Zhuoli Yu
  • Publication number: 20040121826
    Abstract: The present invention discloses a rotating shaft for pivotally connecting the rotary wing to the body of a rotary-wing type digital mobile communication equipment, wherein the rotating shaft comprises: a spindle formed at both ends thereof with a first positioning portion and at mid-section thereof with a rotary portion; a fixing member hitched on the first positioning portion of the spindle and to be positioned to the spindle fixedly and formed with a limit block; a rotary member pivotally disposed on the rotary portion of the spindle; a rotatable limit component pivotally disposed on the rotary portion of the spindle and positioned between the fixing member and the rotary member and provided with a radially protruding first protruding block; the rotary member is connected to the rotatable limit component and leaves some rotating space, when the rotary member rotates, it drives the rotatable limit component rotating, and when the first protruding block formed on the rotatable limit component is blocked by th
    Type: Application
    Filed: August 15, 2003
    Publication date: June 24, 2004
    Inventors: Yawei Ma, Kejiao Luo, Zhengfeng Yang
  • Patent number: 6549788
    Abstract: A mobile phone including a handset having a transceiver adapted for selective communication in cellular and satellite modes. The handset includes a cellular antenna adapted to receive cellular wavelength signals, a connector for a satellite antenna, and a switch adapted to selectively connect either the cellular antenna or the connector to the transceiver. The satellite antenna is adapted for selective connection to the connector of the mobile phone handset, the satellite antenna being adapted to receive satellite wavelength signals. The satellite antenna includes a cavity in a first portion adapted to receive and frictionally secure to the cellular antenna, and a plunger is adapted to engage the switch to disconnect the cellular antenna from, and connect the satellite antenna to, the transceiver when the satellite antenna is secured to the handset connector.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: April 15, 2003
    Assignee: Ericsson Inc.
    Inventors: Peter Karabinis, Gregory A. O'Neill, Jr., Yawei Ma
  • Patent number: 6490435
    Abstract: A flip cover and antenna assembly for a portable phone is disclosed as being rotatably coupled to a main housing thereof. The flip cover and antenna assembly includes a first flip cover housing, a second flip cover housing matable with the first flip cover housing, and an antenna element positioned between the first and second flip cover housings. The antenna element further includes a ground plane bonded to the ground plane first surface. A dielectric foam is positioned over any remaining area of the ground plane first surface. The first and second flip cover housings have flanges which extend from at least a portion thereof to wrap around corresponding edges of the main housing, which enables extensions of the ground plane to be provided conforming to the flanges. The ground plane may also be patterned in order to control the radiation pattern thereof and limit any interference from other components of the portable phone.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: December 3, 2002
    Assignee: Ericsson Inc.
    Inventors: Yawei Ma, Peter Karabinis, Gerard James Hayes, James D. MacDonald, Jr.
  • Patent number: 6430400
    Abstract: A portable phone is disclosed as including a main housing, circuitry located within the main housing for operating the portable phone in a designated mode of communication, a support bracket assembly detachably coupled to the main housing, a flip cover rotatably secured to the support bracket assembly about a first axis, and an antenna coupled to the circuitry for transmitting and receiving signals in the designated communication mode associated with the flip cover. The flip cover is also rotatable about a second axis with respect to the support bracket assembly, which is substantially perpendicular to the first axis.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: August 6, 2002
    Assignee: Ericsson Inc.
    Inventors: James D. MacDonald, Jr., Yawei Ma
  • Patent number: 6107968
    Abstract: A communication terminal including a communication unit, a longitudinal antenna enclosed in a radome, and a pivot connecting the antenna to the unit for pivoting about an axis with an RF connection to the unit. The unit is in a box-shaped enclosure having a front face with a keypad and connected to a rear face by top and bottom faces, and two side faces. One of the unit front and rear faces is non-planar from top to bottom with the spacing between the front and rear faces varying from top to bottom. The spacing between the radome front and rear faces varies to substantially match the varied spacing between the unit front and rear faces so that the radome and unit front and rear faces define a uniform profile when the radome is adjacent one unit side face. The unit top face lies on one side of a first plane and at least one unit side face lies on one side of a second plane perpendicular to the first plane.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: August 22, 2000
    Assignee: Ericsson Inc.
    Inventors: Nils Allan Stefan Stalgren, Bradley T. Philippi, Yawei Ma, George Daniel, Robert James Stanley, II
  • Patent number: 6025816
    Abstract: An antenna operable in two disparate frequency bands is disclosed as including a first quadrifilar helix having four conductive elements arranged helically to define a cylinder of substantially constant radius, where the first quadrifilar helix is formed of two bifilar helices arranged orthogonally and excited in phase quadrature. A quadrature feed network is connected to the first quadrifilar helix, wherein one end of a coupling element thereof is connected to a first end of each conductive element. The quadrature feed network also includes a first feedpoint for operation of the antenna with circular polarization in a first frequency band and a second feedpoint for operation of the antenna with linear polarization in a second frequency band.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: February 15, 2000
    Assignee: Ericsson Inc.
    Inventors: Paul Dent, Amer Hassan, James MacDonald, Yawei Ma
  • Patent number: 5907306
    Abstract: A multi-piece retractable radiotelephone antenna and associated communication method is employed to provide improved signal quality. The multi-piece antenna includes conductive windings, such as helical quadrafillar windings, disposed separately on two slidably cooperating substrate members. The antenna is mechanically extended to a deploy position and the separate windings are electrically connected thereby doubling the effective electrical length of the antenna.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: May 25, 1999
    Assignee: Ericsson Inc.
    Inventors: Peter D. Karabinis, Yawei Ma, Stanley L. Reinhold
  • Patent number: 5828343
    Abstract: A device for connecting the RF signal circuitry of a portable phone and a plurality of antennas utilized to transmit and receive signals is disclosed. The connector device includes a female portion electrically coupled to the RF signal circuitry, with the female portion providing a plurality of ports for electrical coupling with the RF signal circuitry. A complementary male portion is also provided which is electrically coupled to the antennas, the male portion including a separate pin member connected to each antenna. Each pin member of the male portion is received within a corresponding one of the ports in the female portion as the male and female portions of the connector device are mated together. In this way, the RF signal circuitry and the antennas are electrically coupled. The antennas of the portable phone are integrated with a flip cover rotatably mounted to a phone base containing the RF signal circuitry, where the flip cover may be either fixedly or detachably secured to the phone base.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: October 27, 1998
    Assignee: Ericsson Inc.
    Inventors: James D. MacDonald, Jr., Yawei Ma
  • Patent number: 5818000
    Abstract: A three-way switch for individually connecting either a dummy load, a first antenna, or a second antenna to a radio transmitter power amplifier output. The switch includes a first member connected to a dummy load and a second flexible member fixed in position relative to the first member and biased against the first member so as to make an electrical connection between the first and second member. The second member is connected to the radio transmitter output and includes two contact areas for connecting to a first and a second antenna. When a first antenna is applied against the first contact area, the transmitter is disconnected from the dummy load and only the first antenna is connected to the transmitter output. When a second antenna is applied to the second contact area the flexible member of the switch disconnects from the first antenna and only the second antenna is connected to the transmitter output.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: October 6, 1998
    Assignee: Ericsson, Inc.
    Inventors: Yawei Ma, Xue-Song Zhou
  • Patent number: 5809403
    Abstract: A coaxial cable assembly for connecting at least one antenna element with RF signal circuitry of a portable phone is disclosed. The portable phone includes a base portion in which the RF signal circuitry is located and a flip cover rotatably secured to the base portion in which the antenna elements are located. The flip cover is rotatably secured to the base portion by means of a support bracket assembly. The coaxial cable assembly provides a separate coaxial cable for each antenna element, with a first end thereof being coupled to the antenna element and a second end being coupled to the RF signal circuitry. Each coaxial cable is shaped to extend through the support bracket assembly so as to withstand bend stresses associated with rotation of the flip cover, with certain locations of the coaxial cable being formed to maintain such shape.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: September 15, 1998
    Assignee: Erisson Inc.
    Inventors: James D. MacDonald, Jr., Yawei Ma