Patents by Inventor Juo-Yu Lee

Juo-Yu Lee 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: 20150263821
    Abstract: Presented are methods that utilize wavefront multiplexing for enabling linearly-polarized terminals to access circularly-polarized satellite transponders. The methods disclosed herein feature (1) polarization formation capability that renders transmitted signal conditioned on circularly-polarized channels through multiple linearly-polarized feeds, and (2) polarization-conversion capability that compensate path differentials introduced by electromagnetic wave propagation channels. Data streams to be transmitted are pre-processed by a wavefront multiplexer into multiple wavefront components in linear polarization formats, where signals from respective data streams are replicated into linearly-polarized sub-channels. These replicated data streams are linked via a unique complex weighting vector (amplitude and phase or their equivalents), or “wavefront”, which are also linked by various spatially independent wavefronts.
    Type: Application
    Filed: June 2, 2015
    Publication date: September 17, 2015
    Inventors: Juo-Yu Lee, Donald C.D. Chang, Tzer-Hso Lin
  • Publication number: 20150248431
    Abstract: Presented is a multi-channel data process to utilize wavefront multiplexing for data storage and data stream transport with redundancy on cloud or in a distribution network. This processing features additional applications for multi-media recording and data communications via transponding platforms including satellites, unmanned air vehicles (UAVs), or others for better survivability and faster accessing. Multiple concurrent data streams are pre-processed by a wavefront multiplexer into multiple sub-channels or wavefront components, where signals from respective data streams are replicated into sub-channels. These replicated data streams are linked via a unique complex weighting vector (amplitude and phase or their equivalents), or “wave-front”, which are also linked by various spatially independent wavefronts. Additionally, probing data streams are embedded and linked via some of the independent wavefronts. Aggregated data streams in sub-channels are unique linear combinations of all input data streams.
    Type: Application
    Filed: May 14, 2015
    Publication date: September 3, 2015
    Inventors: Juo-Yu Lee, Donald C.D. Chang, Steve K. Chen
  • Publication number: 20150040184
    Abstract: Data files with digital envelops are used (1) for embedded identifiers for digital right management (DRM), and (2) as means delivering additional data or new information via repeated re-broadcasting process by many broadcasting service providers. The new DRM applications offer additional privacy and survivability while data is in storage and/or transported on cloud. Wavefront multiplexing/demultiplexing process (WF muxing/demuxing) embodying an architecture that utilizes multi-dimensional waveforms has found applications in data storage and transport on cloud. Multiple data sets are preprocessed by WF muxing before stored/transported. WF muxed data is aggregated data from multiple data sets that have been “customized processed” and disassembled into any scalable number of sets of processed data, with each set being stored on a storage site. The original data is reassembled via WF demuxing after retrieving a lesser but scalable number of WF muxed data sets.
    Type: Application
    Filed: October 17, 2014
    Publication date: February 5, 2015
    Inventors: Donald C.D. Chang, Juo-Yu Lee, Jeffrey C. Chang, Steve K. Chen
  • Publication number: 20150032706
    Abstract: Data files with digital envelops may be used for many new applications for cloud computing. The new applications include games and entertainments such as digital fortune cookies, and treasure hunting, unique techniques for digital right management, or even additional privacy and survivability on data storage and transport on cloud computing. Wavefront multiplexing/demultiplexing process (WF muxing/demuxing) embodying an architecture that utilizes multi-dimensional waveforms has found applications in data storage and transport on cloud. Multiple data sets are preprocessed by WF muxing before stored/transported. WF muxed data is aggregated data from multiple data sets that have been “customized processed” and disassembled into any scalable number of sets of processed data, with each set being stored on a storage site. The original data is reassembled via WF demuxing after retrieving a lesser but scalable number of WF muxed data sets.
    Type: Application
    Filed: October 13, 2014
    Publication date: January 29, 2015
    Inventors: Donald C.D. Chang, Juo-Yu Lee
  • Publication number: 20150009892
    Abstract: Embodiments of a communications system with multiple active scattering devices to service multiple users either indoor or outdoor over same spectrum in a communication network and a method for the system are generally described herein. Signals streams for transmission to users in spoke-and-hub configurations will utilize multiple active scattering devices. Three categories of operational concepts are presented: (1) multiple scattering devices arranged geometrically bundled together to function as active mirrors or retro-directive repeaters, (2) distributed man-made scattering devices placed to enhance channel bandwidth in between a hub and a common service area via frequency re-use, and (3) organizing distributed active scattering devices by remote beamforming for servicing a small common coverage area indoor or outdoor with enhanced bandwidth.
    Type: Application
    Filed: May 28, 2014
    Publication date: January 8, 2015
    Inventors: Donald C.D. Chang, Juo-Yu Lee
  • Publication number: 20140219124
    Abstract: Aircrafts flying near Earth or naval vessels are used as active scattering platforms in a multipath communications channel in MIMO communications systems. These man-made platforms in a communications channel, with techniques of beam forming and wavefront multiplexing in both transmitters at source and receivers at destinations enhance the ability to coherently combine the power of the communication signals, and improve the signal-to-noise ratio in addition to the MIMO advantage of multiple times of channel capacity over a finite bandwidth via frequency reuse. These platforms may be stationary, mobile ground based, or ocean surface based. They may also be airborne, or space borne. A swarm of 10's micro-UAV based mini-transponders is an example through active scattering of these micro-UAV to generate 10× more available bandwidth between a base station and ground mobile users over same bandwidth.
    Type: Application
    Filed: February 28, 2014
    Publication date: August 7, 2014
    Inventors: Donald C.D. Chang, Juo-Yu Lee
  • Publication number: 20140161018
    Abstract: Embodiments of a mobile communications system to service multiple users over same spectrum in a coordinated multi-user communication network and method are generally described herein. The serving signals for transmission to user equipment (UE) in spoke-and-hub configurations will utilize composited transfer functions (CTF) selected and characterized based on channel state information (CSI), which comprises of responses from probing signal sequences for multipath dominated propagation channels in accordance with a dynamic user distribution. A composited transfer functions (CTF) is a point-to-multipoint transfer function and is constructed by combining multiple point-to-point transfer functions. The combining and shaping are via beam forming optimizations in transmitters to be “user dependent” with enhanced responses to a selected user and suppressed responses to other users.
    Type: Application
    Filed: February 18, 2014
    Publication date: June 12, 2014
    Inventors: Donald C.D. Chang, Juo-Yu Lee
  • Publication number: 20140081989
    Abstract: Security on data storage and transport are important concerns on cloud computing. Wavefront multiplexing/demultiplexing process (WF muxing/demuxing) embodying an architecture that utilizes multi-dimensional waveforms has found applications in data storage and transport on cloud. Multiple data sets are preprocessed by WF muxing before stored/transported. WF muxed data is aggregated data from multiple data sets that have been “customized processed” and disassembled into any scalable number of sets of processed data, with each set being stored on a storage site. The original data is reassembled via WF demuxing after retrieving a lesser but scalable number of WF muxed data sets. In short, the WF muxed data storage solution enhances data security and data redundancy by, respectively, creating a new dimension to existing security/privacy methods and significantly reducing the storage space needed for data redundancy.
    Type: Application
    Filed: July 29, 2013
    Publication date: March 20, 2014
    Inventors: Steve K Chen, Donald C.D. Chang, Juo-Yu Lee