Patents by Inventor Chih-Lin I

Chih-Lin I 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: 8403974
    Abstract: A medical warming system includes a plurality of heating elements respectively adapted to be disposed closed to various parts of a plurality of patients' bodies, a first group of sensors disposed at the proximity of the heating elements and configured for measuring the temperatures of the heating elements, a second group of sensors adapted to be disposed at the various parts of the patients' bodies and configured for measuring the temperatures of the various parts of the patients' bodies, and a controller being in communication with the first group and the second group of sensors. The controller is configured for receiving temperature data from the sensors and controlling the temperature of each heating element accordingly. Each heating element includes a conductive layer made from a nano-thickness material.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: March 26, 2013
    Assignee: Advanced Materials Enterprises Company Limited
    Inventors: Geng Li, Cho Yee Joey Chow, Chih Lin I, Edward S. Yang
  • Patent number: 8203105
    Abstract: Embodiments involve a food warmer that uses a nano thickness heating material as the heating element. The heating element has a fast response and is energy efficient. The temperature of the food warmer can be precisely controlled. The food warmer may be used to heat cold food to a desired temperature, maintain a temperature of already heated food, and/or cook uncooked food.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: June 19, 2012
    Assignee: Advanced Materials Enterprises Company Limited
    Inventors: Geng Li, Joey Cho Yee Chow, Chih Lin I, Edward S. Yang
  • Patent number: 8014981
    Abstract: A method of modeling wireless communication channels in angular domain is disclosed. The method includes considering radiation patterns 101, 102 of the transmitter antenna and the receiver antenna, wherein the radiation patterns are represented by antenna characteristics sampled at a plurality of angular directions. A method of channel estimation based on the method of modeling wireless communication channel in angular domain is also disclosed.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: September 6, 2011
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Peter Wing Chau Chan, Derek Chun Kit Lee, Roger Shu Kwan Cheng, Chih-Lin I
  • Patent number: 7941302
    Abstract: Method and apparatus for channel simulation is disclosed. The claimed invention provides method and apparatus 1200 to simulate a propagation channel, particularly a multiple-input-multiple-input (MIMO) channel. The claimed invention further provides a method and apparatus for efficient optimization of antenna by the enhanced channel simulation. The claimed invention takes both antenna characteristics and channel characteristics as inputs, and output time-varying channel realizations to generate the system metrics as the optimization target for antenna under optimization. The claimed invention advantageous provides enhanced channel simulation to meet the accuracy requirement of antenna evaluation.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: May 10, 2011
    Assignee: Hong Kong Applied Science and Technology Research Institute Co. Ltd.
    Inventors: Xueyuan Zhao, Chun Kit Lee, Zhengang Pan, Chih-Lin I, Kin Nang Lau, Roger Shu Kwan Cheng
  • Publication number: 20100049029
    Abstract: An array of two or more piezoelectric drivers generates shear waves in a region of interest of a human undergoing a MRE test. The use of the array of drivers allows for better diagnosis of disease of the humans or animals.
    Type: Application
    Filed: August 20, 2008
    Publication date: February 25, 2010
    Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Geng Li, Veng-Vai V. Lam, Chih Lin I, Edward S. Yang
  • Publication number: 20100023098
    Abstract: A medical warming system includes a plurality of heating elements respectively adapted to be disposed closed to various parts of a plurality of patients' bodies, a first group of sensors disposed at the proximity of the heating elements and configured for measuring the temperatures of the heating elements, a second group of sensors adapted to be disposed at the various parts of the patients' bodies and configured for measuring the temperatures of the various parts of the patients' bodies, and a controller being in communication with the first group and the second group of sensors. The controller is configured for receiving temperature data from the sensors and controlling the temperature of each heating element accordingly. Each heating element includes a conductive layer made from a nano-thickness material.
    Type: Application
    Filed: July 21, 2009
    Publication date: January 28, 2010
    Inventors: Geng Li, Cho Yee Joey Chow, Chih Lin I, Edward S. Yang
  • Publication number: 20100012643
    Abstract: Embodiments involve a food warmer that uses a nano thickness heating material as the heating element. The heating element has a fast response and is energy efficient. The temperature of the food warmer can be precisely controlled. The food warmer may be used to heat cold food to a desired temperature, maintain a temperature of already heated food, and/or cook uncooked food.
    Type: Application
    Filed: July 18, 2008
    Publication date: January 21, 2010
    Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Geng Li, Joey C Y Chow, Chih Lin I, Edward S. Yang
  • Publication number: 20090299715
    Abstract: A method of modeling wireless communication channels in angular domain is disclosed. The method includes considering radiation patterns 101, 102 of the transmitter antenna and the receiver antenna, wherein the radiation patterns are represented by antenna characteristics sampled at a plurality of angular directions. A method of channel estimation based on the method of modeling wireless communication channel in angular domain is also disclosed.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 3, 2009
    Applicant: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Peter Wing Chan, Derek Chun Lee, Roger Shu Cheng, Chih-Lin I
  • Publication number: 20090299717
    Abstract: Method and apparatus for channel simulation is disclosed. The claimed invention provides method and apparatus 1200 to simulate a propagation channel, particularly a multiple-input-multiple-input (MIMO) channel. The claimed invention further provides a method and apparatus for efficient optimization of antenna by the enhanced channel simulation. The claimed invention takes both antenna characteristics and channel characteristics as inputs, and output time-varying channel realizations to generate the system metrics as the optimization target for antenna under optimization. The claimed invention advantageous provides enhanced channel simulation to meet the accuracy requirement of antenna evaluation.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 3, 2009
    Inventors: Xueyuan Zhao, Chun Kit Lee, Zhengang Pan, Chih-Lin I, Kin Nang Lau, Roger Shu Kwan Cheng
  • Patent number: 6580913
    Abstract: The present invention concerns the efficient use of the radio spectrum in wireless communications. Channel occupancy data and channel availability data concerning a specific base station and its neighbors are used to assign frequency channels to mobile units and/or base stations. The channel occupancy and availability data may be located at a base station or at a mobile switching center. Channels are preferably assigned as channel pairs.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: June 17, 2003
    Assignee: Lucent Technologies Inc.
    Inventors: Pi-Hui Chao, Chih-Lin I
  • Patent number: 6201799
    Abstract: A Multicode (MC) Code Division Multiple Access (CDMA) receiver receives J encoded multicode channels (where J>1) over L multiple air signal paths (where L>1) and forms a decorrelator output vector in which for each of the J multicode channels, the interference caused by the other J−1 multicode channels has been cancelled. When the MC CDMA receiver is a coherent receiver, a pilot interference canceller cancels a received pilot signal from the J channel code of each of the received J multicode channels prior to forming the decorrelator output vector.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: March 13, 2001
    Assignee: Lucent Technologies, Inc
    Inventors: Howard C. Huang, Chih-Lin I
  • Patent number: 6178329
    Abstract: The present invention concerns the efficient use of the radio spectrum in wireless communications. Channel occupancy data and channel availability data concerning a specific base station and its neighbors are used to assign frequency channels to mobile units and/or base stations. The channel occupancy and availability data may be located at a base station or at a mobile switching center. Channels are preferably assigned as channel pairs.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: January 23, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: Pi-Hui Chao, Chih-Lin I
  • Patent number: 6108321
    Abstract: An interference based dynamic channel assignment scheme for a wireless communication network, for self configuring dynamic channel assignment of a plurality of channels, comprises the steps of: prioritizing a channel list and prioritizing a selected subset of the prioritized channel list. In further enhancements of the present invention, prioritizing a channel list is distributed on a per cell/sector basis so that prioritization is independent of frequency usage information from other cells/sectors and prioritization is based upon uplink and downlink characteristics.
    Type: Grant
    Filed: March 5, 1997
    Date of Patent: August 22, 2000
    Assignee: Lucent Technologies Inc.
    Inventors: Nefatiti Anderson, Simon C. Borst, Lynell E. Cannell, Terry Si-Fong Cheng, Lindsey Chew, Sudheer A. Grandhi, Chih-Lin I, Joseph Samuel Kaufman, Boris Dmitrievich Lubachevsky, Balakrishnan Narendran, Donna M. Sand
  • Patent number: 6088335
    Abstract: A code division multiple access system provides a way of allocating an increased data rate to a requesting mobile station. A mobile station requesting a data rate in excess of the basic data rate sends received pilot strength data for its base station and base stations in adjacent cells. The received pilot strength data is used to determine an increased data rate to be assigned to the requesting mobile station. One feature assigns an increased data rate based on the difference in the maximum received received pilot strength data from a non-active base station (one not in connection with the mobile station) and the maximum received pilot strength data from an active base station (one in connection with the mobile station). Yet another feature utilizes a series of threshold levels, each pair of levels associated with a different permitted data rate. Using the received pilot strength data, a data rate is determined which satisfies all adjacent cell interference concerns.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: July 11, 2000
    Assignee: Lucent Technologies Inc.
    Inventors: Chih-Lin I, Sarath Kumar, Sanjiv Nanda
  • Patent number: 6069883
    Abstract: A code division multiple access system method and apparatus provides for allocation of increased bandwidth to a requesting mobile station. An access controller receives a data burst request (from either a requesting mobile station or from an external network already in connection with the mobile station) requesting a first data rate in excess of the basic data rate B allocated to a mobile station of a first cell. The access controller determines an increased data rate which is to be granted to said mobile station without causing excessive interference at said first cell and at least one adjacent cell and transmits a data burst assignment to a base station of said first cell indicating the increased data rate which has been granted to said mobile station.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: May 30, 2000
    Assignee: Lucent Technologies Inc
    Inventors: Richard Paul Ejzak, Subhasis Laha, Sarath Kumar, Douglas Knisely, Sanjiv Nanda, Chih-Lin I
  • Patent number: 6067292
    Abstract: A Code-Division Multiple Access (CDMA) receiver removes the pilot signal from the received signal. The pilot signal is defined by its multipath parameters (amplitudes, phase shift and delays) and its signature sequence. Since this information is known at the user's receiver terminal (i.e., handset), the pilot signals of the interfering multipath components of the baseband received signal are detected and removed prior to demodulation of the desired multipath component. The pilot signal may be cancelled prior to or following the data accumulation stage. The pilot signal cancellation can be switched on and off depending on the detected path signal level.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: May 23, 2000
    Assignee: Lucent Technologies Inc
    Inventors: Howard C. Huang, Chih-Lin I, Stephan ten Brink, Giovanni Vannucci
  • Patent number: 6055432
    Abstract: Co-Existence Dynamic Channel Assignment (DCA) techniques for overlay macrocellular systems facilitate the coexistence of embedded autonomous underlay microcellular (e.g., indoor) systems. The Co-existence of the two systems without excessive mutual interference is achieved through statistical systematic exclusion of predefined subsets of the universal channel set from the dynamic assignment to the overlay macrocells. The sets of channels are made available to the underlay systems. The exclusion is done with minimal DCA performance degradation.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: April 25, 2000
    Assignee: Lucent Technologies Inc.
    Inventors: Mohamed Abdul Haleem, Chih-Lin I
  • Patent number: 6047190
    Abstract: Co-Existence Dynamic Channel Assignment (DCA) techniques for overlay macrocellular systems facilitate the coexistence of embedded autonomous underlay microcellular (e.g., indoor) systems. The co-existence of the two systems without excessive mutual interference is achieved through systematic deterministic exclusion of predefined subsets of the universal channel set from the dynamic assignment to the overlay macrocells. The sets of channels are made available to the underlay systems. The exclusion is done with minimal DCA performance degradation. Multiple deterministic exclusions methods are described.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: April 4, 2000
    Assignee: Lucent Technologies Inc
    Inventors: Mohamed Abdul Haleem, Chih-Lin I
  • Patent number: 6009089
    Abstract: A Code-Division Multiple Access (CDMA) receiver is disclosed which removes the pilot signal from the received signal. The pilot signal is defined by its multipath parameters (amplitudes, phase shift and delays) and its signature sequence. Since this information is known at the user's receiver terminal (i.e., handset), the pilot signals of the interfering multipath components of the baseband received signal are detected and removed prior to demodulation of the desired multipath component. The pilot signal may be cancelled prior to or following the data accumulation stage.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: December 28, 1999
    Assignee: Lucent Technologies Inc.
    Inventors: Howard C. Huang, Chih-Lin I, Stephan ten Brink
  • Patent number: 5881056
    Abstract: A Multi-Code (MC) Code Division Multiple Access (CDMA) receiver receives N (where N>1) encoded signal channels over multiple air signal paths. The MC-CDMA receiver receives and demodulates the N encoded signal channels into N signal samples and includes a common circuit for time-sharing an accumulator, for accumulating the N signal samples, among a plurality of second correlators. Each of the plurality of second correlator means utilizes the time-shared accumulator to accumulate samples from each of the N signals which are then decoded into an associated one of the N signal channels.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: March 9, 1999
    Assignee: Lucent Technologies Inc.
    Inventors: Howard C. Huang, Chih-Lin I, Andrzej Partyka, Stephan ten Brink, Charles Albert Webb, III