Patents by Inventor Charles J. Purwin

Charles J. Purwin 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: 10670185
    Abstract: A first embodiment of the disclosure provides a system for detection of intrusion into a working space of a material testing device wherein visual user detection system uses digital image processing and filtering in order to identify user entry into the specimen test space. The visual user detection system has built-in redundancy for safety compliance and further can be used for data entry with respect to test data setup and configuration. A second embodiment of the disclosure uses a digital camera mounted on the frame of the material testing device, oriented toward a striped pattern on the top of the front base cover. The striped pattern is recognized by a vision algorithm which creates virtual boundary lines within the pattern. A detected intrusion, such as by a user body part, will be detected and the material testing machine put into a safe state.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: June 2, 2020
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Saad K. Namou, Brandon L. Smith, Charles J. Purwin, Christopher Bennet, Paolino Carnevale
  • Publication number: 20170292650
    Abstract: A first embodiment of the disclosure provides a system for detection of intrusion into a working space of a material testing device wherein visual user detection system uses digital image processing and filtering in order to identify user entry into the specimen test space. The visual user detection system has built-in redundancy for safety compliance and further can be used for data entry with respect to test data setup and configuration. A second embodiment of the disclosure uses a digital camera mounted on the frame of the material testing device, oriented toward a striped pattern on the top of the front base cover. The striped pattern is recognized by a vision algorithm which creates virtual boundary lines within the pattern. A detected intrusion, such as by a user body part, will be detected and the material testing machine put into a safe state.
    Type: Application
    Filed: September 16, 2015
    Publication date: October 12, 2017
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventors: Saad K. NAMOU, Brandon L. SMITH, Charles J. PURWIN, Christopher BENNET, Paulino CARNEVALE
  • Patent number: 8423695
    Abstract: A dual bus interface PCB includes a main chipset component, a first type bus interface connector, and a second type bus interface connector. The PCB can be configured at fabrication time to enable a variety of configurations for operation. Optionally, the PCB can also be provided at least one memory chip and a NIC (Network Interface Card) chip. By virtue of having a dual interface, the PCB can be used with either the first type or the second type bus. Furthermore, the dual interface PCB eliminates the need by chipset manufacturers to carry multiple PCB variations of the same product in order to support various bus interfaces. In one embodiment, the PCB is a dual PCI-X/PCI-E interface PCB.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: April 16, 2013
    Assignee: Broadcom Corporation
    Inventor: Charles J. Purwin
  • Publication number: 20130080675
    Abstract: A dual bus interface PCB includes a main chipset component, a first type bus interface connector, and a second type bus interface connector. The PCB can be configured at fabrication time to enable a variety of configurations for operation. Optionally, the PCB can also be provided at least one memory chip and a NIC (Network Interface Card) chip. By virtue of having a dual interface, the PCB can be used with either the first type or the second type bus. Furthermore, the dual interface PCB eliminates the need by chipset manufacturers to carry multiple PCB variations of the same product in order to support various bus interfaces. In one embodiment, the PCB is a dual PCI-X/PCI-E interface PCB.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 28, 2013
    Applicant: Broadcom Coporation
    Inventor: Charles J. PURWIN
  • Patent number: 7730228
    Abstract: A system provides dual use of a general purpose input/output (I/O) line. In an embodiment, the system comprises a controlling circuit having a dual purpose I/O line that is selectively operable in a serial transmit mode or an I/O mode. A first circuit that receives a serial data stream when the controlling circuit operates in the serial transmit mode is coupled to the I/O line. A second circuit that generates and transmits a signal when the controlling circuit operates in the I/O mode is also coupled to the I/O line. Finally, a third circuit is disposed between the second circuit and the I/O line. In an embodiment, when the controlling circuit operates in the serial transmit mode, the third circuit maintains the second circuit in an idle state, and when the controlling circuit operates in the I/O mode, the third circuit permits the second circuit to transmit the signal to the controlling circuit.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: June 1, 2010
    Assignee: Broadcom Corporation
    Inventors: Charles J. Purwin, Chris R. Franklin
  • Publication number: 20090031050
    Abstract: A system provides dual use of a general purpose input/output (I/O) line. In an embodiment, the system comprises a controlling circuit having a dual purpose I/O line that is selectively operable in a serial transmit mode or an I/O mode. A first circuit that receives a serial data stream when the controlling circuit operates in the serial transmit mode is coupled to the I/O line. A second circuit that generates and transmits a signal when the controlling circuit operates in the I/O mode is also coupled to the I/O line. Finally, a third circuit is disposed between the second circuit and the I/O line. In an embodiment, when the controlling circuit operates in the serial transmit mode, the third circuit maintains the second circuit in an idle state, and when the controlling circuit operates in the I/O mode, the third circuit permits the second circuit to transmit the signal to the controlling circuit.
    Type: Application
    Filed: October 1, 2008
    Publication date: January 29, 2009
    Applicant: Broadcom Corporation
    Inventors: Charles J. PURWIN, Chris R. Franklin
  • Patent number: 7482998
    Abstract: An LED interface circuit provides connection options for one or more types of LEDs. In an embodiment, the circuit includes an input node that receives an LED control signal, and an output that has a first output node, and a second output node. A driving circuit is disposed between the input header and the output. The driving circuit has a non-inverted input node and an inverted output node. In an embodiment, the inverted output node is capable of sinking current. The non-inverted input node is coupled to the input header and to the first output node, while the inverted output node is coupled to the second output node. The output of the LED interface circuit is capable of driving a plurality of different types of LED displays.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: January 27, 2009
    Assignee: Broadcom Corporation
    Inventors: Charles J. Purwin, Chris R. Franklin
  • Patent number: 7451245
    Abstract: A system provides dual use of a general purpose input/output (I/O) line. In an embodiment, the system comprises a controlling circuit having a dual purpose I/O line that is selectively operable in a serial transmit mode or an I/O mode. A first circuit that receives a serial data stream when the controlling circuit operates in the serial transmit mode is coupled to the I/O line. A second circuit that generates and transmits a signal when the controlling circuit operates in the I/O mode is also coupled to the I/O line. Finally, a third circuit is disposed between the second circuit and the I/O line. In an embodiment, when the controlling circuit operates in the serial transmit mode, the third circuit maintains the second circuit in an idle state, and when the controlling circuit operates in the I/O mode, the third circuit permits the second circuit to transmit the signal to the controlling circuit.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: November 11, 2008
    Assignee: Broadcom Corporation
    Inventors: Charles J. Purwin, Chris R. Franklin