Patents by Inventor Alan Chin

Alan Chin 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: 10403783
    Abstract: Reusable nanostructured substrates for forming semiconductor thin films, such as those used in solar cells, are configured with nanopillars to permit improved lift-off of thin films.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: September 3, 2019
    Assignee: Arizona Board of Regents on behalf of Arizona State University
    Inventors: Alan Chin, Cun-Zheng Ning
  • Publication number: 20190172966
    Abstract: Reusable nanostructured substrates for forming semiconductor thin films, such as those used in solar cells, are configured with nanopillars to permit improved lift-off of thin films.
    Type: Application
    Filed: January 29, 2019
    Publication date: June 6, 2019
    Inventors: Alan Chin, Cun-Zheng Ning
  • Patent number: 8054853
    Abstract: The present invention provides systems and methods for supporting native TDM and native Packet switching simultaneously in a meshed switching architecture. Specifically with the present invention, the meshed links are common to both TDM and packet traffic, and both types terminate to a common system interface without the need to separate physical resources and infrastructure; the common termination function has access to both the TDM (Time Slot Interchange (TSI)) switching and packet switching elements. Native TDM switching and packet switching operate in concurrently in the mesh over common links, with the personality of the links derived by the card type (attached to the mesh). In this, a given card or slot in a system can communicate in the native format to both packet based cards (slots) or TDM based cards (slots) simultaneously with no preconceived restrictions or limitations on slot or link definition.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: November 8, 2011
    Assignee: Ciena Corporation
    Inventors: John Patrick Jones, Timothy L. Norman, Alan Chin-Luen Chan
  • Patent number: 7499694
    Abstract: In a method of tuning a receiver for a digital signal (MPEG2-TS), an input signal (RF-in) is filtered (In-filt, Band-filt) to obtain a processed signal, a digital figure of merit (BER) is determined (Mix/Osc/IF amp IF-downconv-2, C) from the processed signal, and the filtering step (In-filt, Band-filt) is fine-adjusted (?P, PLL, DAC1-DAC3) in dependence on the digital figure of merit (BER).
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: March 3, 2009
    Assignee: NXP B.V.
    Inventors: Alan Chin Leong Yeo, Han Leng Paxton Tan, Johannes Hubertus Antonius Brekelmans
  • Publication number: 20080181203
    Abstract: The present invention provides systems and methods for supporting native TDM and native Packet switching simultaneously in a meshed switching architecture. Specifically with the present invention, the meshed links are common to both TDM and packet traffic, and both types terminate to a common system interface without the need to separate physical resources and infrastructure; the common termination function has access to both the TDM (Time Slot Interchange (TSI)) switching and packet switching elements. Native TDM switching and packet switching operate in concurrently in the mesh over common links, with the personality of the links derived by the card type (attached to the mesh). In this, a given card or slot in a system can communicate in the native format to both packet based cards (slots) or TDM based cards (slots) simultaneously with no preconceived restrictions or limitations on slot or link definition.
    Type: Application
    Filed: April 30, 2007
    Publication date: July 31, 2008
    Inventors: John Patrick Jones, Timothy L. Norman, Alan Chin-Luen Chan
  • Patent number: 7301584
    Abstract: In a local oscillator for a tuning arrangement for both TV and FM signals there is substantial risk of parasitic oscillation. A special provision is disclosed for effectively reducing this risk. The special provision is a connection of a damping resistor (R1a) for suppressing parsitic oscillations between ground and a junction (J2) of a parallel LC resonator of the local oscillator.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: November 27, 2007
    Assignee: NXP B.V.
    Inventors: Alan Chin Leong Yeo, Kui Yong Lim
  • Patent number: 7002638
    Abstract: In a method of automatic gain control for both TV and FM radio signals, the TV and FM radio signals are controllably amplified (AGC-AMP) to obtain amplifier output signals, the amplifier output signals are tuner processed (F, MIX, IF-AMP) to obtain tuner output signals, the tuner output signals are applied as control signals (T-AGC) to the controllable amplifier (AGC-AMP), a bandwidth of a thus formed AGC loop being wide enough for a TV channel, and the tuner output signals are narrow-band filtered (CF) to obtain narrow-band filtered signals having a bandwidth substantially corresponding to a bandwidth of an FM radio channel.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: February 21, 2006
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Alan Chin Leong Yeo, Kam Choon Kwong, Mieu Ngan Pang, Hwee Bun Tan
  • Publication number: 20050260959
    Abstract: In a local oscillator for a tuning arrangement for both TV and FM signals there is substantial risk of parasitic oscillation. A special provision is disclosed for effectively reducing this risk. The special provision is a connection of a damping resistor (R1a) for suppressing parsitic oscillations between ground and a junction (J2) of a parallel LC resonator of the local oscillator.
    Type: Application
    Filed: July 25, 2003
    Publication date: November 24, 2005
    Inventors: Alan Chin Yeo, Kui Lim
  • Publication number: 20050058416
    Abstract: The invention relates to an optical device. The optical device comprises a waveguide core and a nanocomposite material optically coupled to the waveguide core. The nanocomposite material includes a plurality of quantum dots. The nanocomposite material has a nonlinear index of refraction ? that is at least 10?9 cm2/W when irradiated with an activation light having a wavelength ? between approximately 3×10?5 cm and 2×10?4 cm.
    Type: Application
    Filed: July 16, 2004
    Publication date: March 17, 2005
    Inventors: Howard Hoon Lee, Alan Chin, William Pfenninger
  • Publication number: 20050058415
    Abstract: The invention relates to an optical device. The optical device comprises a waveguide core and a nanocomposite material optically coupled to the waveguide core. The nanocomposite material includes a plurality of quantum dots. The nanocomposite material has a nonlinear index of refraction ? that is at least 10?9 cm2/W when irradiated with an activation light having a wavelength ? between approximately 3×10?5 cm and 2×10?4 cm.
    Type: Application
    Filed: July 16, 2004
    Publication date: March 17, 2005
    Inventors: Howard Wing Lee, Alan Chin, William Pfenninger
  • Publication number: 20020158992
    Abstract: In a method of automatic gain control for both TV and FM radio signals, the TV and FM radio signals are controllably amplified (AGC-AMP) to obtain amplifier output signals, the amplifier output signals are tuner processed (F, MIX, IF-AMP) to obtain tuner output signals, the tuner output signals are applied as control signals (T-AGC) to the controllable amplifier (AGC-AMP), a bandwidth of a thus formed AGC loop being wide enough for a TV channel, and the tuner output signals are narrow-band filtered (CF) to obtain narrow-band filtered signals having a bandwidth substantially corresponding to a bandwidth of an FM radio channel.
    Type: Application
    Filed: October 4, 2001
    Publication date: October 31, 2002
    Inventors: Alan Chin Leong Yeo, Kam Choon Kwong, Mieu Ngan Pang, Hwee Bun Tan