Patents by Inventor Litong Li
Litong Li 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).
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Publication number: 20170199733Abstract: Provided is a method for a terminal to update an operating system, including: acquiring a terminal identifier that needs to update an operating system; updating a first operating system corresponding to the terminal identifier on a server according to system update information; and sending an update result of the first operating system to a terminal corresponding to the terminal identifier, so that a second operating system of the terminal displays the update result. The embodiments of the present invention enable a terminal to update an operating system in time, and can improve the update efficiency of the terminal, improve the security and stability of the operating system of the terminal, reduce the time cost to update the terminal by a user and improve user experience.Type: ApplicationFiled: December 19, 2014Publication date: July 13, 2017Applicant: GIONEE COMMUNICATION EQUIPMENT CO.,LTD. SHENZHENInventors: Litong LI, Yanyi WANG
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Patent number: 8897124Abstract: A wireless terminal adapted to function in a code division multiple access (CDMA) communications system is provided. The terminal includes a receiver adapted to receive frames having a slot structure in which there is a user identification channel and a shared channel, the shared channel having been transmitted using a plurality of Walsh codes, and containing content for either a plurality of voice users, a plurality of voice users and one high-rate data user, or only one high-rate data user. A slot of the shared channel contains content for a plurality of users which was transmitted in parallel using different Walsh code spaces for different users. The wireless terminal is adapted to decode the user identification channel to determine when a slot of the shared channel contains voice and/or high-rate data content for the wireless terminal.Type: GrantFiled: June 28, 2012Date of Patent: November 25, 2014Assignee: Alcatel LucentInventors: Xixian Chen, Neil N. McGowan, Muhammad Khaledul Islam, Ning Guo, Hong Ren, Litong Li
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Publication number: 20120269052Abstract: A wireless terminal adapted to function in a code division multiple access (CDMA) communications system is provided. The terminal includes a receiver adapted to receive frames having a slot structure in which there is a user identification channel and a shared channel, the shared channel having been transmitted using a plurality of Walsh codes, and containing content for either a plurality of voice users, a plurality of voice users and one high-rate data user, or only one high-rate data user. A slot of the shared channel contains content for a plurality of users which was transmitted in parallel using different Walsh code spaces for different users. The wireless terminal is adapted to decode the user identification channel to determine when a slot of the shared channel contains voice and/or high-rate data content for the wireless terminal.Type: ApplicationFiled: June 28, 2012Publication date: October 25, 2012Inventors: Xixian Chen, Neil N. McGowan, Muhammad Khaledul Islam, Ning Guo, Hong Ren, Litong Li
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Patent number: 8248912Abstract: A forward link design is provided employing CDMA (code division multiple access) technologies in which time division multiplexing is employed between data and control information on the forward link to service multiple users per slot. Another forward link design employing CDMA (code division multiple access) technologies is provided in which code division multiplexing between data and control information is employed on the forward link to service multiple users per slot, which is preferably backwards compatible with legacy standards such as IS2000A. A reverse link design is also provided.Type: GrantFiled: May 1, 2006Date of Patent: August 21, 2012Assignee: Alcatel LucentInventors: Xixian Chen, Neil N. McGowan, Muhammad Khaledul Islam, Ning Guo, Hong Ren, Litong Li
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Patent number: 7760698Abstract: A forward link design is provided employing CDMA (code division multiple access) technologies in which time division multiplexing is employed between data and control information on the forward link to service multiple users per slot. Another forward link design employing CDMA (code division multiple access) technologies is provided in which code division multiplexing between data and control information is employed on the forward link to service multiple users per slot, which is preferably backwards compatible with legacy standards such as IS2000A. A reverse link design is also provided.Type: GrantFiled: October 13, 2006Date of Patent: July 20, 2010Assignee: Alcatel LucentInventors: Xixian Chen, Neil N. McGowan, Muhammad Khaled Islam, Ning Guo, Hong Ren, Litong Li
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Publication number: 20090209222Abstract: A method and apparatus for residual spur avoidance is disclosed. One embodiment comprises a method of generating a first local oscillator signal, mixing the first local oscillator signal with a radio frequency signal to generate an intermediate frequency signal, filtering the intermediate frequency signal at a band-pass frequency, mixing the filtered intermediate frequency signal with a second local oscillator signal having a first frequency offset from the band-pass frequency to generate an output intermediate frequency signal, and switching the second local oscillator signal to a second frequency offset to avoid a spur generated from the first frequency offset, wherein the second frequency offset is the opposite sign but same magnitude offset from the band-pass frequency.Type: ApplicationFiled: February 15, 2008Publication date: August 20, 2009Applicant: TEKTRONIX, INC.Inventors: Litong Li, Donald J. Dalebroux, Ronald J. Larrick
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Publication number: 20090206892Abstract: A phase-locked loop including a phase detector configured to receive inputs from a reference signal path and a feedback signal path and generate a phase detector output based upon such inputs. The phase-locked loop also includes an oscillator operatively coupled with the phase detector and configured to produce an oscillatory output in response to and based upon the phase detector output, and where the oscillatory output is applied to the feedback signal path. The reference signal path includes a mixer configured to mix a reference signal with output from a direct digital synthesizer; and a switching mechanism configured to selectively place one of a plurality of different filters in series between the mixer and the phase detector.Type: ApplicationFiled: February 15, 2008Publication date: August 20, 2009Applicant: TEKTRONIX, INC.Inventor: Litong Li
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Publication number: 20070076678Abstract: A forward link design is provided employing CDMA (code division multiple access) technologies in which time division multiplexing is employed between data and control information on the forward link to service multiple users per slot. Another forward link design employing CDMA (code division multiple access) technologies is provided in which code division multiplexing between data and control information is employed on the forward link to service multiple users per slot, which is preferably backwards compatible with legacy standards such as IS2000A. A reverse link design is also provided.Type: ApplicationFiled: October 13, 2006Publication date: April 5, 2007Applicant: Nortel Networks LimitedInventors: Xixian Chen, Neil McGowan, Muhammad Islam, Ning Guo, Hong Ren, Litong Li
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Patent number: 7154846Abstract: A forward link design is provided employing CDMA (code division multiple access) technologies in which time division multiplexing is employed between data and control information on the forward link to service multiple users per slot. Another forward link design employing CDMA (code division multiple access) technologies is provided in which code division multiplexing between data and control information is employed on the forward link to service multiple users per slot, which is preferably backwards compatible with legacy standards such as IS2000A. A reverse link design is also provided.Type: GrantFiled: October 24, 2001Date of Patent: December 26, 2006Assignee: Nortel Networks LimitedInventors: Xixian Chen, Neil N. McGowan, Khaled M. Islam, Ning Guo, Hong Ren, Litong Li
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Publication number: 20030067899Abstract: A forward link design is provided employing CDMA (code division multiple access) technologies in which time division multiplexing is employed between data and control information on the forward link to service multiple users per slot. Another forward link design employing CDMA (code division multiple access) technologies is provided in which code division multiplexing between data and control information is employed on the forward link to service multiple users per slot, which is preferably backwards compatible with legacy standards such as IS2000A. A reverse link design is also provided.Type: ApplicationFiled: October 24, 2001Publication date: April 10, 2003Inventors: Xixian Chen, Neil N. McGowan, Mohammad Khaledul Islam, Ning Guo, Hong Ren, Litong Li
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Publication number: 20020105929Abstract: A forward link design is provided employing CDMA (code division multiple access) technologies in which time division multiplexing is employed between data and control information on the forward link to service multiple users per slot. Another forward link design employing CDMA (code division multiple access) technologies is provided in which code division multiplexing between data and control information is employed on the forward link to service multiple users per slot, which is preferably backwards compatible with legacy standards such as IS2000A. A reverse link design is also provided.Type: ApplicationFiled: October 24, 2001Publication date: August 8, 2002Inventors: Xixian Chen, Neil N. McGowan, Mohammad Khaledul Islam, Ning Guo, Hong Ren, Litong Li