Patents by Inventor Peter K. Cheung

Peter K. Cheung 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: 20230105935
    Abstract: Provided herein are antiviral compounds having the structure of Formula (I) and compositions thereof for use in the treatment of viral infection. In particular, the compounds of Formula (I) are capable of interfering with the export of viral mRNA processing as reflected in the altered accumulation of viral RNA isoforms as well as transport from the nucleus to the cytoplasm. Such compounds show a reduction of HIV, adenovirus and coronavirus infection of cells. The invention provides compounds that may be suitable for the treatment of HIV/AIDS.
    Type: Application
    Filed: December 15, 2020
    Publication date: April 6, 2023
    Applicants: THE UNIVERSITY OF BRITISH COLUMBIA, THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO, SOCIETE DE COMMERCIALISATION DES PRODUITS DE LA RECHERCHE APPLIQUEE SOCPRA SCIENCES SANTE ET HUMAINE
    Inventors: David Scott Grierson, Maryam Zamiri, Peter K. Cheung, Benoit Chabot, Alan Walter Cochrane
  • Patent number: 6173344
    Abstract: Disclosed is a SCSI host adapter for use in a computer system. The SCSI host adapter is configured to provide the computer system with interconnection with internal and/or external target devices. The SCSI host adapter includes a low voltage differential connector for interconnecting to a low voltage differential bus, and the low voltage differential bus is configured to communicate a first transaction. The SCSI host adapter also includes a single ended connector for interconnecting to a single ended bus, and the single ended bus is configured to communicate a second transaction. Furthermore, the SCSI host adapter includes a transceiver unit that is configured to interface between the low voltage differential bus and the single ended bus and produce a target information signal. The target information signal is configured to indicate whether the first transaction or the second transaction is occurring between the SCSI host adapter and the low voltage differential bus or the single ended bus.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: January 9, 2001
    Assignee: Adaptec, Inc
    Inventors: Abdul Waheed Mohammed, Peter K. Cheung, Barry Davis, Christopher Burns
  • Patent number: 6154067
    Abstract: When more than two terminators are on a SCSI bus the bus is said to be "over-terminated", and when less than two terminators are on the bus, the bus is said to be "under-terminated". When the SCSI bus is either under or over terminated, the bus does not function, and often the user does not know why the bus is not functioning. Apparatus and a method are provided for indicating to the user when the bus is not properly terminated. A terminator monitoring system and method operate in conjunction with the bus. A precision resistor is connectable to the bus so that a voltage drop is produced across the precision resistor. A circuit monitors the value of the produced voltage drop across the precision resistor to provide an indication of the number of terminators on the bus. A switch selectably connects the precision resistor to the bus, and there is a source of a reference voltage.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: November 28, 2000
    Assignee: Adaptec, Inc.
    Inventor: Peter K. Cheung
  • Patent number: 6122689
    Abstract: Disclosed is a host adapter having automatic termination, and a method for implementing the automatic termination. The host adapter includes a first connector for connecting to at least one external peripheral device and a second connector for connecting to at least one internal peripheral device. The host adapter further includes a termination system circuit that is coupled between the first connector and the second connector. The termination system circuit is configured to produce bit data that is indicative of whether a peripheral device is coupled to one or both of the first connector and the second connector. Preferably, the termination system circuit communicates the bit data to a software termination engine upon boot-up to enable or disable a termination of the host adapter. Furthermore, the termination system circuit includes a termination control decoder and a tri-state buffer.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: September 19, 2000
    Assignee: Adaptec, Inc.
    Inventor: Peter K. Cheung