Patents by Inventor Leticia Gomez-Torres

Leticia Gomez-Torres 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).

  • Circuit and method for controlling an alarm
    Patent number: 6346880
    Abstract: An alarm circuit (10) includes a sensor (11), a comparator (13), a control circuit (16), and a transducer (19). The control circuit (16) controls the transducer (19) and has three modes of operation: standby mode, alarm mode, and silence mode. The comparator (13) compares the voltage of an input signal from the sensor (11) to a first threshold level during the standby mode of operation. The control circuit (16) enables the transducer (19) and transitions to the alarm mode of operation after the voltage of the input signal exceeds the first threshold level. The control circuit (16) disables the transducer (19) for a predetermined time period and transitions to the silence mode of operation after a silence signal is received by the control circuit (16). The input signal is compared to both the first threshold level and a second threshold level during the silence mode.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: February 12, 2002
    Assignee: Motorola, Inc.
    Inventors: Stanley J. Schroeder, Leticia Gomez-Torres, Juan M. Gutierrez, Stanislaw K. Wicka