Patents by Inventor Roger R. Roth

Roger R. Roth 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: 6813631
    Abstract: A system of controllers act as nodes on a network. One controller is identified as a supervisory node and the remaining controllers are identified as client nodes with the supervisory node and each client node broadcasting a default identifier, created at the time of manufacture, in a default domain. The default identifiers from the client nodes are received and ranked at the supervisory node according to a characteristic in the identifier. A network address is created at the supervisory node for each client node and broadcast in the default domain to all client nodes. The client nodes receive all network addresses but only recognize and internalize the network address corresponding to a specific client node. Control information is then communicated between nodes utilizing subnet and node addressing.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: November 2, 2004
    Assignee: Honeywell International Inc.
    Inventors: Michael A. Pouchak, Roger R. Roth
  • Patent number: 6549826
    Abstract: A method for controlling a variable airflow apparatus to prevent processor overflow and underflow, with the variable airflow apparatus including an airflow sensor for providing an airflow sensor signal, a stored relationship between the airflow sensor signal and an airflow value, a damper for varying airflow, and an actuator for positioning the damper. The method includes energizing the airflow controller, determining either a minimum allowed airflow value based on the stored relationship between the airflow signal and an airflow value, or determining a maximum allowed airflow value based on the stored relationship, and periodically positioning the damper to provide an airflow value within a range limited by the minimum allowed airflow value or the maximum allowed airflow value in response to a signal from the airflow controller.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: April 15, 2003
    Assignee: Honeywell International Inc.
    Inventors: Michael A. Pouchak, Roger R. Roth
  • Publication number: 20030005086
    Abstract: A system of controllers act as nodes on a network. One controller is identified as a supervisory node and the remaining controllers are identified as client nodes with the supervisory node and each client node broadcasting a default identifier, created at the time of manufacture, in a default domain. The default identifiers from the client nodes are received and ranked at the supervisory node according to a characteristic in the identifier. A network address is created at the supervisory node for each client node and broadcast in the default domain to all client nodes. The client nodes receive all network addresses but only recognize and internalize the network address corresponding to a specific client node. Control information is then communicated between nodes utilizing subnet and node addressing.
    Type: Application
    Filed: December 15, 2000
    Publication date: January 2, 2003
    Inventors: Michael A. Pouchak, Roger R. Roth
  • Patent number: 5701058
    Abstract: A method of calibrating a dimmable lighting system having an electric lighting fixture and light sensor in an electronic controller. The method comprises a system which makes eight measurements while controlling illumination levels from both indoor and outdoor lighting. The method calculates a set point and a gain which are utilized to maintain a constant lighting level at a lighting point of interest.
    Type: Grant
    Filed: January 4, 1996
    Date of Patent: December 23, 1997
    Assignee: Honeywell Inc.
    Inventor: Roger R. Roth
  • Patent number: 5539261
    Abstract: A fluorescent light control circuit usable with a transformer relay for providing electric current pulses of alternating polarity in response to successive operations of a two position electromechanical switch, the circuit including first and second controllable current paths operable to conduct current in opposite directions only, the active path being operable to conduct current only momentarily following repositioning of the switch.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: July 23, 1996
    Assignee: Honeywell Inc.
    Inventor: Roger R. Roth
  • Patent number: 5479812
    Abstract: A method and apparatus for providing calibrated and linearized flow sensors for VAV systems with the sensor corrected for device/electronic/drift/and field air turbulence characteristics using factory calibrated flow or pressure sensors with output modified by a transfer function incorporated into a lookup table for each sensor. This allows low power processors to handle the adjustment onsite. Further adjustment is made onsite with reference to actual flow and turbulence effects.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: January 2, 1996
    Assignee: Honeywell Inc.
    Inventors: Robert D. Juntunen, Roger R. Roth
  • Patent number: 5117178
    Abstract: An electric power consuming system such as the lighting in a building has local control units for adjusting the power consumed by a preselected load or loads associated with each local control unit. The control units generate a selectable control voltage which has a first range specifying to the loads that no power should be consumed by the loads with voltage outside the first range specifying by its level the amount of power which the loads should draw. The system also includes energy management apparatus whose output is connected across the output of the control units and which can limit the power individual control units can specify to their loads. The invention comprises an interface circuit which connects the energy management apparatus to the control units and translates control voltages from the energy management apparatus falling within a second voltage range within the first range of the selectable control voltage, to a voltage falling outside the first voltage range.
    Type: Grant
    Filed: March 14, 1991
    Date of Patent: May 26, 1992
    Assignee: Honeywell Inc.
    Inventor: Roger R. Roth
  • Patent number: 5043722
    Abstract: A communications system has an active master node which transmits request messages in serial bit fashion on a data bus, and a plurality of responder nodes each of which receives the request messages on the data bus and may respond to a request message with a serial bit answer message. The possiblity exists that a plurality of responder nodes may provide concurrent answer messages forming a composite signal which the active master node may not be able to recognize as containing answer messages. A low pass filter is provided in the active master node which provides as its output only those pulses in the composite signal whose length is within a predetermined interval, typically from approximately a tenth to one half of the interval for each bit in the answer messages. A counter receives the low pass filter output and provides a collision signal to the associated master node if more than a preselected number of pulses within the predetermined interval are present.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: August 27, 1991
    Assignee: Honeywell Inc.
    Inventors: John R. Aggers, Roger R. Roth
  • Patent number: 5028862
    Abstract: A power control system includes a voltage follower circuit which may be interposed between a load power control circuit which adjusts the level of power applied to a load, and a variable impedance whose internal impedance prescribes the desired level of power. A feedback voltage from the output of the voltage follower circuit is compared with a corresponding voltage across the variable impedance and the difference between them is used to drive the output voltage of the voltage follower circuit toward the input voltage. The voltage follower circuit permits control by a single variable impedance of many more load power control circuits than a single variable impedance can normally handle, and without appreciably affecting the power level as a function of the impedance level. This circuit is particularly useful in a system for controlling the level of light received from fluorescent light fixtures controlled by electronic ballasts.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: July 2, 1991
    Assignee: Honeywell Inc.
    Inventor: Roger R. Roth
  • Patent number: 5004972
    Abstract: A load power control circuit which adjusts the level of power provided by a load in response to changes in the impedance across control terminals includes a control circuit which disconnects the load from the power source when the voltage across the control terminals in within a certain range. The control circuit is particularly useful in controlling fluorescent light fixtures controlled by electronic ballasts because the control circuit avoids the need for a separate on/off switch for the fixtures.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: April 2, 1991
    Assignee: Honeywell Inc.
    Inventor: Roger R. Roth
  • Patent number: 4949337
    Abstract: A communication network has one master node which maintains an active master list (AML) containing the node addresses of all nodes to which the token will be passed. When nodes are added or deleted from the network, it is efficient in terms of data bus occupancy and individual processing time by the nodes if the successor address for each node is broadcast in a single message, and the availability of an AML makes this possible. The network has the capability of efficiently updating the AML whenever the configuration of the network is so changed.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: August 14, 1990
    Assignee: Honeywell Inc.
    Inventors: John R. Aggers, Roger R. Roth
  • Patent number: 4894826
    Abstract: A communication system has a first node which transmits on a data bus messages each having a preamble having a predetermined format including a message type and the message length, and a plurality of second nodes receiving messages from the data bus and including elements which can determine that the preamble in each message has the predetermined format. The preamble is particularly useful for allowing the second nodes to quickly detect messages not directed to those nodes of which the elements form a part, allowing the node to ignore the remainder of the message. This allows the individual nodes to exclude the message interpretation for detecting message directed to them, from their processing tasks thereby improving the effective processing speed of the network.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: January 16, 1990
    Assignee: Honeywell, Inc.
    Inventors: John R. Aggers, Roger R. Roth
  • Patent number: 4675648
    Abstract: A passive signal coupler transfers data signals being transmitted over AC power lines from a first AC power distribution system to a second AC power distribution system. Each leg of the passive signal coupler coupled to a phase of the power line voltage includes a series LC circuit, tuned to the data signal carrier frequency. Each leg coupled to the first power system is terminated in a first winding of a transformer. Each leg coupled to the second power system is terminated in a second winding of the transformer.
    Type: Grant
    Filed: April 17, 1984
    Date of Patent: June 23, 1987
    Assignee: Honeywell Inc.
    Inventors: Roger R. Roth, Gregory A. Hrdlicka
  • Patent number: 4442514
    Abstract: Alarm and intrusion type identification signals are derived from the output of a security system transducer by a signal processor. The signal processor conditions the transducer output signals to provide rectified and unrectified high pass and low pass frequency signals; develops signals representing either human or vehicle intrusions from the high pass frequency signals; develops signals representing intrusion events from the low pass frequency signals; and, logically classifies each intrusion event as either human or vehicle. Intrusion type identification signals are developed by counting zero crossings of the unrectified high pass frequency signal, measuring current energy of the rectified high pass frequency signal and logically comparing the two values.
    Type: Grant
    Filed: November 17, 1981
    Date of Patent: April 10, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Roger R. Roth
  • Patent number: 4396950
    Abstract: A CCD camera capable of observing a moving object which has varying intensities of radiation eminating therefrom and which may move at varying speeds is shown wherein there is substantially no overlapping of successive images and wherein the exposure times and scan times may be varied independently of each other.
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: August 2, 1983
    Assignee: Honeywell Inc.
    Inventor: Roger R. Roth