Patents by Inventor Shiu L. Chan

Shiu L. Chan 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).

  • Method, integrated circuit, mechanical analog clock movement and completed assembly for a talking analog clock
    Patent number: 5309413
    Abstract: A talking analog clock comprises an analog mechanical clock movement in which the minutes mechanism has attached to it a switch that opens and closes for each minute elapsed. A digital synchronizing circuit is included that senses the closing and opening of the switch and uses these events to increment a digital time-keeping circuit. A directional switch attached to a winding stem and connected to the digital synchronizing circuit allows the digital time-keeping circuit to be incremented or decremented with the winding stem. The time in the current time memory is thereafter locked in synchronization with the analog time shown on the display dial. A user can therefore set the time or an alarm time in a simple way.
    Type: Grant
    Filed: August 3, 1993
    Date of Patent: May 3, 1994
    Assignee: ESS Technology, Inc.
    Inventor: Shiu L. Chan
  • Combined microphone and mount
    Patent number: D355915
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: February 28, 1995
    Assignee: Ess Technology, Inc.
    Inventor: Shiu L. Chan