Patents by Inventor Kit Man Cham

Kit Man Cham 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: 8195017
    Abstract: A consumer input/output (CIO) optical transceiver module, an active optical cable that incorporates a CIO optical transceiver module, and a method for using a CIO optical transceiver module in an active optical cable are provided. In contrast to optical transceiver modules currently used in active optical cables, which utilize parallel arrays of laser diodes and parallel arrays of photodiodes, the CIO optical transceiver module includes two singlet laser diodes and two singlet photodiodes for providing two high-speed transmit channels and two high-speed receive channels, respectively. Because the singlet laser diodes and photodiodes of the CIO optical transceiver module are less costly than the parallel arrays of laser diodes and parallel arrays of photodiodes that are used in known active optical cables, the CIO optical transceiver module can be manufactured at relatively low costs with high quality, and therefore is well suited for consumer applications.
    Type: Grant
    Filed: May 31, 2010
    Date of Patent: June 5, 2012
    Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.
    Inventors: Ronald T. Kaneshiro, Xiaozhong Wang, Kit Man Cham, Paul Yu, Chung-Yi Su
  • Publication number: 20110293221
    Abstract: A consumer input/output (CIO) optical transceiver module, an active optical cable that incorporates a CIO optical transceiver module, and a method for using a CIO optical transceiver module in an active optical cable are provided. In contrast to optical transceiver modules currently used in active optical cables, which utilize parallel arrays of laser diodes and parallel arrays of photodiodes, the CIO optical transceiver module includes two singlet laser diodes and two singlet photodiodes for providing two high-speed transmit channels and two high-speed receive channels, respectively. Because the singlet laser diodes and photodiodes of the CIO optical transceiver module are less costly than the parallel arrays of laser diodes and parallel arrays of photodiodes that are used in known active optical cables, the CIO optical transceiver module can be manufactured at relatively low costs with high quality, and therefore is well suited for consumer applications.
    Type: Application
    Filed: May 31, 2010
    Publication date: December 1, 2011
    Applicant: AVAGO TECHNOLOGIES FIBER IP (SINGAPORE) PTE. LTD.
    Inventors: Ronald T. Kaneshiro, Chung-Yi Su, Xiaozhong Wang, Kit Man Cham, Paul Yu
  • Publication number: 20110268390
    Abstract: An active optical cable is provided that is well suited for consumer applications. In contrast to known Quad Small Form-Factor Pluggable (QSFP) active optical cables, the active optical cable incorporates at least one consumer input/output (CIO) optical transceiver module that is well suited for consumer applications. The plug housing of the known QSFP active optical cable has been modified to house at least one CIO optical transceiver module that utilizes laser diode and photodiode singlets, rather than the parallel laser diode and photodiode arrays used in the known QSFP active optical cables. These features reduce the overall cost of the active optical cable and make it well suited for consumer applications.
    Type: Application
    Filed: May 1, 2010
    Publication date: November 3, 2011
    Applicant: AVAGO TECHNOLOGIES FIBER IP (SINGAPORE) PTE. LTD.
    Inventors: Robert Yi, Xiaozhong Wang, Kit Man Cham, Paul Yu
  • Publication number: 20110013905
    Abstract: Embodiments of the invention include an active optical cable and method for controlling the operation of the active optical cable based on the detection of signal loss, e.g., due to fiber breakage, within the active optical cable. The active optical cable includes first and second optical transceivers, each with an open fiber control module coupled between the transmission side and the receiver side of the respective optical transceiver. The transmission side of each optical transceiver is coupled to the receiver side of the other optical transceiver via a plurality of transmission channels, such as a plurality of optical fibers. Each open fiber control module is configured to detect an optical power level of an optical signal received by the receiver side of the optical transceiver within which the open fiber control module resides and, based on such detection, control the operation of the corresponding transmission side of the optical transceiver.
    Type: Application
    Filed: July 17, 2009
    Publication date: January 20, 2011
    Applicant: AVAGO TECHNOLOGIES FIBER IP (SINGAPORE) PTE. LTD.
    Inventors: Xiaozhong Wang, Kit Man Cham