Abstract: A system and method for controlling activation and deactivation of an exhaust system for ventilating an enclosed space, such as a bathroom. The system includes a humidity sensor, a memory element, and a processing element. The sensor measures a humidity value in the space, and the memory element stores that value along with a series of previously measured humidity values. The memory also stores a look-up table which specifies activation and deactivation criteria for the exhaust system based on the measured humidity value and a normal humidity value. The processing element calculates the normal humidity value based on a weighted average of the stored series of humidity values, consults the look-up table, and controls the exhaust system as specified by the look-up table. The measured humidity value is added to the stored series of values at a first interval, and the normal humidity value is re-calculated at a second interval.

Abstract: An identification tag (100) facilitates use of a secure computer system (300). The tag (100) is adapted to be worn on a user's wrist and includes an identification and registration circuit (102) that includes an identification component (106), an affiliation component (110), and a light-emitting diode (112). The computer system includes an RF identification tag registration device (302) operable to acquire user physical information and communicate the physical information to a computer (202), wherein the computer verifies that a valid user is wearing the tag (100). The identification and registration device (302) ensures that the physical information communicated to the computer pertains to the user wearing the tag by comparing pulse signals acquired from the user's hand and wrist as the device (302) is acquiring physical information.

Abstract: An identification tag (100) facilitates use of a secure computer system (300). The tag (100) is adapted to be worn on a user's wrist and includes an identification and registration circuit (102) that includes an identification component (106), an affiliation component (110), and a light-emitting diode (112). The computer system includes an RF identification tag registration device (302) operable to acquire user physical information and communicate the physical information to a computer (202), wherein the computer verifies that a valid user is wearing the tag (100). The identification and registration device (302) ensures that the physical information communicated to the computer pertains to the user wearing the tag by comparing pulse signals acquired from the user's hand and wrist as the device (302) is acquiring physical information.

Abstract: An identification tag (100) facilitates use of a secure computer system (300). The tag (100) is adapted to be worn on a user's wrist and includes an identification and registration circuit (102) that includes an identification component (106), an affiliation component (110), and a light-emitting diode (112). The computer system includes an RF identification tag registration device (302) operable to acquire user physical information and communicate the physical information to a computer (202), wherein the computer verifies that a valid user is wearing the tag (100). The identification and registration device (302) ensures that the physical information communicated to the computer pertains to the user wearing the tag by comparing pulse signals acquired from the user's hand and wrist as the device (302) is acquiring physical information.

Abstract: An identification tag (100) facilitates use of a secure computer system (300). The tag (100) is adapted to be worn on a user's wrist and includes an identification and registration circuit (102) that includes an identification component (106), an affiliation component (110), and a light-emitting diode (112). The computer system includes an RF identification tag registration device (302) operable to acquire user physical information and communicate the physical information to a computer (202), wherein the computer verifies that a valid user is wearing the tag (100). The identification and registration device (302) ensures that the physical information communicated to the computer pertains to the user wearing the tag by comparing pulse signals acquired from the user's hand and wrist as the device (302) is acquiring physical information.

Abstract: An identification tag (100) facilitates use of a secure computer system (300). The tag (100) is adapted to be worn on a user's wrist and includes an identification and registration circuit (102) that includes an identification component (106), an affiliation component (110), and a light-emitting diode (112). The computer system includes an RF identification tag registration device (302) operable to acquire user physical information and communicate the physical information to a computer (202), wherein the computer verifies that a valid user is wearing the tag (100). The identification and registration device (302) ensures that the physical information communicated to the computer pertains to the user wearing the tag by comparing pulse signals acquired from the user's hand and wrist as the device (302) is acquiring physical information.

Abstract: An identification tag (100) facilitates use of a secure computer system (300). The tag (100) is adapted to be worn on a user's wrist and includes an identification and registration circuit (102) that includes an identification component (106), an affiliation component (110), and a light-emitting diode (112). The computer system includes an RF identification tag registration device (302) operable to acquire user physical information and communicate the physical information to a computer (202), wherein the computer verifies that a valid user is wearing the tag (100). The identification and registration device (302) ensures that the physical information communicated to the computer pertains to the user wearing the tag by comparing pulse signals acquired from the user's hand and wrist as the device (302) is acquiring physical information.

Abstract: This invention provides apparatus for collecting parameter disturbance information from each connected apparatus which can disturb measuring vital signs, and broadcasting a message regarding the disturbance and a coordinating clock signal to all apparatus. Connected sensors susceptible to parameter disturbances identify them from the message and suppress their audible alarm during an interval given in the message. This eliminates false audible alarms caused by such disturbances. The disturbance interval can be extended for later disturbances unless it is a new source or disturbance type and the alarm is already suppressed. A brickwall timer limits the total maximum suppressed interval to a safe maximum. A recovery timer allows a sensor to recover from a parameter disturbance before responding to a subsequent one.

Abstract: This invention provides apparatus for collecting parameter disturbance information from each connected apparatus which can disturb measuring vital signs, and broadcasting a message regarding the disturbance and a coordinating clock signal to all apparatus. Connected sensors susceptible to parameter disturbances identify them from the message and suppress their audible alarm during an interval given in the message. This eliminates false audible alarms caused by such disturbances. The disturbance interval can be extended for later disturbances unless it is a new source or disturbance type and the alarm is already suppressed. A brickwall timer limits the total maximum suppressed interval to a safe maximum. A recovery timer allows a sensor to recover from a parameter disturbance before responding to a subsequent one.