Patents by Inventor Yong Yuan

Yong Yuan 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: 20140082349
    Abstract: Techniques are described for deploying a security credential for an application deployed in a cloud. An encrypted security credential is received from a remote system and is inserted into a virtual machine image associated with the application. Upon deploying the virtual machine image as a virtual machine instance, embodiments transmit a request to a cryptex server for a decrypted security credential, the request including the encrypted security credential and a virtual machine identifier for the virtual machine instance. The cryptex server is configured to retrieve metadata associated with the virtual machine identifier and to authenticate the virtual machine instance using the retrieved metadata. Embodiments receive, from the cryptex server, the decrypted security credential for use by the application.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 20, 2014
    Applicant: NETFLIX INC.
    Inventors: James R. Zarfoss, III, Yong Yuan
  • Publication number: 20140082350
    Abstract: Techniques are described for deploying a security credential for an application deployed in a cloud. An encrypted security credential is received from a remote system and is inserted into a virtual machine instance associated with the application. Upon deploying the virtual machine instance, embodiments transmit a request to a cryptex server for a decrypted security credential, the request including the encrypted security credential and a virtual machine identifier for the deployed virtual machine instance. The cryptex server is configured to retrieve metadata associated with the virtual machine identifier and to authenticate the deployed virtual machine instance using the retrieved metadata. Embodiments receive, from the cryptex server, the decrypted security credential for use by the application.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 20, 2014
    Applicant: NETFLIX INC.
    Inventors: James R. Zarfoss, III, Yong Yuan
  • Patent number: 8669850
    Abstract: A reader and method for adjusting the transmission time of a continuous wave (CW), wherein the method comprises setting an initial value for a response waiting time, sending the CW to a tag after sending a command to the tag and waiting for a response from the tag, judging whether the response from the tag is received within the response waiting time. If the response from the tag is received within the response waiting time, then sending of the CW is stopped and the response waiting time is adjusted. If the response from the tag is still not received beyond the response waiting time, then sending of the CW is stopped. The time for the reader to wait for a response from the tag is far less than 20 ms. Consequently, a command failure can be found early, so as to improve the processing efficiency of an RFID system.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: March 11, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hui Li, Yong Yuan, Liang Zhang
  • Publication number: 20140022140
    Abstract: A radio frequency identification (RFID) reader antenna includes a feeding frame, a upper stub unit connected with the first side of the feeding frame, and a lower stub unit connected with the second side of the feeding frame, wherein the upper stub unit includes M first stubs extending towards the second side of the feeding frame, the lower stub unit includes N second stubs extending towards the first side of the feeding frame, the M first stubs and the N second stubs are arranged alternately intervallic, where M, N are integers that are greater than one.
    Type: Application
    Filed: January 20, 2011
    Publication date: January 23, 2014
    Applicant: Siemens Aktiengesellschaft
    Inventors: Dieter Horst, Dan Yu, Yong Yuan
  • Publication number: 20140022059
    Abstract: A radio frequency identifying reader (RFID) and a method for locating a tag by the RFID includes transmitting, by the RFID reader, signals to the tag on at least two frequencies and receiving a corresponding reflection signal, combining, by the RFID reader, received reflection signals and acquiring the combined signal which is received, and mapping the combined signal that is received to a constellation point in a constellation map to locate the tag such that the tag can be more easily located.
    Type: Application
    Filed: January 14, 2011
    Publication date: January 23, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Dieter Horst, Dan Yu, Yong Yuan
  • Publication number: 20130234837
    Abstract: A method for data verification may include: receiving by a radio frequency identification (RFID) tag a write command including data to be written; writing by said RFID tag said data to be written into a local storage; reading by said RFID tag data from said local storage; and carrying out by said RFID tag a data verification according to said data read out. Further, a data verification apparatus may include a receiving module for receiving a write command including data to be written; a writing module for writing said data to be written into a first storage module configured for storing said data to be written; a reading module for reading data from said first storage module; and a verifying module for carrying out verification according to the data read out by said reading module. Such method and apparatus may reduce the time of data verification by an RFID tag.
    Type: Application
    Filed: September 30, 2011
    Publication date: September 12, 2013
    Inventors: Hui Li, Dan Yu, Yong Yuan, Liang Zhang
  • Publication number: 20130210356
    Abstract: A device, system, antenna system including a reader and a plurality of antennae, antenna product, method for the addressing antennae, and method for switching the antenna in a radio frequency identification (RFID) system, wherein the method includes switching the reader in a sequential manner to each of the antennae successively according to a radio frequency communication signal from said reader, where the radio frequency communication signal is provided for the reader to communicate with a tag such that it is simple to form a network and easy to implement the network at low cost.
    Type: Application
    Filed: April 8, 2011
    Publication date: August 15, 2013
    Inventors: Matthias Yuan, Dan Yu, Yong Yuan
  • Patent number: 8418582
    Abstract: A flywheel assembly includes a flywheel rotatably mounted on an exercise and a magnetic control device is centrally received in the flywheel for providing damping to the flywheel. The magnetic control device includes two discs abutted each other. Each disc has a wiggle seat rotatable mounted thereon and each wiggle seat is formed with a sector shoe. Each sector has multiple magnets peripherally secured thereon such that the damping acted on the flywheel is adjusted due to the magnets when the two wiggle seats are synchronously wiggled relative to a corresponding one of the two discs.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: April 16, 2013
    Inventors: Ming Nan Chen, Yong Yuan Chen
  • Publication number: 20120227537
    Abstract: A flywheel assembly includes a flywheel rotatably mounted on an exercise and a magnetic control device is centrally received in the flywheel for providing damping to the flywheel. The magnetic control device includes two discs abutted each other. Each disc has a wiggle seat rotatable mounted thereon and each wiggle seat is formed with a sector shoe. Each sector has multiple magnets peripherally secured thereon such that the damping acted on the flywheel is adjusted due to the magnets when the two wiggle seats are synchronously wiggled relative to a corresponding one of the two discs.
    Type: Application
    Filed: March 7, 2011
    Publication date: September 13, 2012
    Inventors: Ming Nan Chen, Yong Yuan Chen
  • Publication number: 20120119882
    Abstract: A method in a Radio Frequency Identification (RFID) system including at least one reader/writer and a group of tags each attached to a workpiece. The method includes reading a plurality of tags from the group of tags, capturing received signal strength indication envelopes of tags, and storing the received signal strength indication envelope one tag as a template. A correlation match is performed for the received signal strength indication envelope of the tags and the template to obtain a time interval between the received signal strength indication envelope of each of the tags and the template when the correlation is at a maximum value. Using the present invention, the at least one reader/writer can report each tag that is directly in front of an antenna, even if multiple tags exist in the complicated industrial environment, ensuring First Come First-Read (FCFR) and improving the reliability of an ultra high frequency RFID system.
    Type: Application
    Filed: July 13, 2010
    Publication date: May 17, 2012
    Inventors: Dieter Horst, Dan Yu, Yong Yuan
  • Patent number: 8063599
    Abstract: A motor control device includes a rotation speed control circuit, a voltage transforming circuit, a buffering circuit and a driving circuit. The rotation speed control circuit provides a rotation speed control signal. The voltage transforming circuit is electrically connected to the rotation speed control circuit and transforms the rotation speed control signal to a speed control voltage signal. The buffering circuit, electrically connected to the voltage transforming circuit, receives the speed control voltage signal and delays or buffers output of the speed control voltage signal. The driving circuit, electrically connected to the buffering circuit, receives the speed control voltage signal from the buffering circuit and generates a driving signal according to the speed control voltage signal so as to control the operation of the motor.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: November 22, 2011
    Assignee: Delta Electronics, Inc.
    Inventors: Yung-Ping Lin, Yong-Yuan Yang, Bao-Qi Shi
  • Publication number: 20110181398
    Abstract: A reader and method for adjusting the transmission time of a continuous wave (CW), wherein the method comprises setting an initial value for a response waiting time, sending the CW to a tag after sending a command to the tag and waiting for a response from the tag, judging whether the response from the tag is received within the response waiting time. If the response from the tag is received within the response waiting time, then sending of the CW is stopped and the response waiting time is adjusted. If the response from the tag is still not received beyond the response waiting time, then sending of the CW is stopped. The time for the reader to wait for a response from the tag is far less than 20 ms. Consequently, a command failure can be found early, so as to improve the processing efficiency of an RFID system.
    Type: Application
    Filed: September 9, 2010
    Publication date: July 28, 2011
    Applicant: Siemens AG
    Inventors: Hui Li, Yong Yuan, Liang Zhang
  • Patent number: 7946642
    Abstract: A motorcycle windshield assembly includes two frame units coupled to a windshield. Each frame unit includes a pair of corresponding adjusting elements jointly enclosing an end of an installation rod. Each pair of the adjusting elements are fitted into receiving spaces of a corresponding pair of left and right covers such that teeth formed on each pair of the adjusting elements mesh with teeth formed in the corresponding pair of left and right covers. Each pair of the left and right covers have a side provided with guide grooves for receiving a sliding element coupled to the windshield. Thus, the windshield coupled to the frame units can be conveniently raised, lowered, or tilted to provide the desired shielding effect. The motorcycle windshield assembly is flexibly adjustable in height and tilt angle and is collapsible when not in use.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: May 24, 2011
    Assignee: Yuan-Hwen Cadtool Industrial Co., Ltd.
    Inventor: Yong-Yuan Wu
  • Publication number: 20110101724
    Abstract: A motorcycle windshield assembly includes two frame units coupled to a windshield. Each frame unit includes a pair of corresponding adjusting elements jointly enclosing an end of an installation rod. Each pair of the adjusting elements are fitted into receiving spaces of a corresponding pair of left and right covers such that teeth formed on each pair of the adjusting elements mesh with teeth formed in the corresponding pair of left and right covers. Each pair of the left and right covers have a side provided with guide grooves for receiving a sliding element coupled to the windshield. Thus, the windshield coupled to the frame units can be conveniently raised, lowered, or tilted to provide the desired shielding effect. The motorcycle windshield assembly is flexibly adjustable in height and tilt angle and is collapsible when not in use.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 5, 2011
    Inventor: Yong-Yuan Wu
  • Publication number: 20110037570
    Abstract: An apparatus, system and communication method, which is particularly suited for a radio frequency identification system (RFID), wherein a reflection-transmission apparatus is disposed in a radio system and, during a communication process, the reflection and transmission features of reflection-transmission apparatus presented at the radio frequency are changed to introduce a multi-path signal component which changes with time. Consequently, during the communication process, a receiving apparatus receives and combines the multi-path signal component of communication signals and the radio system performs communication by utilizing time diversity effects. The apparatus, system and method provide effective and continued reduction of communication blind spots in the RFID system, thereby improving the overall success rate for the RFID system to read tags and accomplishing a better balance with the overall reading time.
    Type: Application
    Filed: January 21, 2009
    Publication date: February 17, 2011
    Applicant: Siemens AG
    Inventors: Dieter Horst, Matthias Lampe, Dan Yu, Yong Yuan, Jie Zhang
  • Publication number: 20110037575
    Abstract: A method and an apparatus for providing energy to passive tags in a radio-frequency identification system in which a radio-frequency identification system uses the passive tags, a reader/writer sends commands and continuous waves alternately during a communication process, and the tags can obtain energy from these signals sent by the reader/writer, wherein at least one period is selected from those periods for transmitting the continuous waves, and for the continuous wave transmitting signals during this period, an enhanced transmitting power is used, or a extended transmitting time is used, or during this period continuous waves are sent additionally to the passive tags by an independent energy supplying apparatus provided separately, so that the passive tags can obtain from the continuous waves during the selected period more energy for reading and/or writing, thereby improving the reliability of the reading and/or writing operations, and increasing the rewritable range of the radio-frequency identification
    Type: Application
    Filed: January 28, 2008
    Publication date: February 17, 2011
    Inventors: Dieter Horst, Matthias Lampe, Dan Yu, Yong Yuan
  • Patent number: 7884800
    Abstract: A mouse includes a left button, a right button, a touch sensing unit and a processing unit. The left button and the right button generate click signals in response to click operations. The touch sensing device generates touch positional signals when the left or right button is touched. The processing unit is used to receive the touch positional signals, calculate y-coordinate values of all points in the touched areas; select two significant points respectively from the left touched area and the right touched area; compare the y-coordinate values of the two significant points to generate a comparison result; confirm a current operated mode; if the confirmed operated mode is a left handed operation, send a control signal with a left-button identifier to a computer configured therewith; if the confirmed operated mode is a right handed operation, send a control signal with a right-button identifier to the computer configured therewith.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: February 8, 2011
    Assignees: Hong Fu Jin Precision Industry (Shen Zhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Yong Yuan, Shih-Fang Wong
  • Publication number: 20100321166
    Abstract: An RFID reader/writer including a reader/writer body, antennas and an antenna switching unit is provided. The reader/writer body distributes to each of its own ports a length of sustained time for transmitting a signal. One end of the antenna switching unit is connected to one port of the reader/writer body, while the other end is connected to two antennas. The antenna switching unit acquires a length of sustained time for the signal transmission distributed to the port by the reader/writer body, configures the time-length for the signal transmission and the sequence thereof of the two antennas according to the length of sustained time for the signal transmission, obtains a configuration result for signal transmission, and performs a switching control on the signal transmission of the two antennas according to the signal transmission configuration result. Further, an implementation method for the antenna switching of the RFID reader/writer is described.
    Type: Application
    Filed: August 1, 2008
    Publication date: December 23, 2010
    Inventors: Dieter Horst, Mattias Lampe, Hui Li, Dan Yu, Yong Yuan, Liang Zhang
  • Publication number: 20100207731
    Abstract: A method for conducting a passive label query in a radio frequency identification system, wherein a query process conducted by a reader for a group of passive labels comprises a first query and a subsequent query. The link frequency used by a reverse link from the passive label to the reader in the subsequent query is smaller than that the link frequency used by the reverse link in the first query. The method improves the reverse link performance of a passive label radio frequency identification system, and increased the reading success rate of the passive label. A reader is also provided to implement the method.
    Type: Application
    Filed: July 22, 2008
    Publication date: August 19, 2010
    Applicant: Siemens AGü
    Inventors: Dieter Horst, Dan Yu, Yong Yuan, Liang Zhang
  • Patent number: D608396
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: January 19, 2010
    Inventor: Yong-Yuan Wang