Patents by Inventor Steven K. Shafer

Steven K. Shafer 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: 10924811
    Abstract: A compensation device for maintaining a desired signal quality in transmitted signals includes a signal strength loss curve comparison component configured to compare a predetermined signal strength loss curve to a low band signal strength of a radio-frequency (RF) signal in an amplified forward path of a premise device. The compensation device also includes a gain curve adjustment component configured to output an adjusted gain curve across the RF signal in response to a comparison by the signal strength loss curve comparison component.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: February 16, 2021
    Assignee: PPC BROADBAND, INC.
    Inventors: Thomas A. Olson, David Kelma, Joseph Lai, Steven K. Shafer
  • Publication number: 20190182555
    Abstract: A compensation device for maintaining a desired signal quality in transmitted signals includes a signal strength loss curve comparison component configured to compare a predetermined signal strength loss curve to a low band signal strength of a radio-frequency (RF) signal in an amplified forward path of a premise device. The compensation device also includes a gain curve adjustment component configured to output an adjusted gain curve across the RF signal in response to a comparison by the signal strength loss curve comparison component.
    Type: Application
    Filed: February 20, 2019
    Publication date: June 13, 2019
    Inventors: Thomas A. Olson, David Kelma, Joseph Lai, Steven K. Shafer
  • Patent number: 10264325
    Abstract: A frequency band selection device that can be inserted into a signal transmission line of a CATV system on the premise of a user includes at least two signal path sets between a tap side and a premise side. Each signal path set includes two discrete signal paths, a high frequency signal path for a downstream bandwidth and a low frequency signal path for an upstream bandwidth. The high frequency signal path and the low frequency signal path are separated by a cut-off transition frequency that is different for each signal path set. The device further includes a switch controller having at least two discrete switch positions. The switch controller chooses one of the switch positions as a result of an information signal. Each of the switch positions corresponds to a respective one of the signal path sets.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: April 16, 2019
    Assignee: PPC BROADBAND, INC.
    Inventors: Thomas A. Olson, David Kelma, Joseph Lai, Steven K. Shafer
  • Publication number: 20170026710
    Abstract: A frequency band selection device that can be inserted into a signal transmission line of a CATV system on the premise of a user includes at least two signal path sets between a tap side and a premise side. Each signal path set includes two discrete signal paths, a high frequency signal path for a downstream bandwidth and a low frequency signal path for an upstream bandwidth. The high frequency signal path and the low frequency signal path are separated by a cut-off transition frequency that is different for each signal path set. The device further includes a switch controller having at least two discrete switch positions. The switch controller chooses one of the switch positions as a result of an information signal. Each of the switch positions corresponds to a respective one of the signal path sets.
    Type: Application
    Filed: February 22, 2016
    Publication date: January 26, 2017
    Inventors: Thomas A. Olson, David Kelma, Joseph Lai, Steven K. Shafer
  • Patent number: 9271026
    Abstract: A frequency band selection device that can be inserted into a signal transmission line of a CATV system on the premise of a user includes at least two signal path sets between a tap side and a premise side. Each signal path set includes two discrete signal paths, a high frequency signal path for a downstream bandwidth and a low frequency signal path for an upstream bandwidth. The high frequency signal path and the low frequency signal path are separated by a cut-off transition frequency that is different for each signal path set. The device further includes a switch controller having at least two discrete switch positions. The switch controller chooses one of the switch positions as a result of an information signal. Each of the switch positions corresponds to a respective one of the signal path sets.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: February 23, 2016
    Assignee: PPC BROADBAND, INC.
    Inventors: Thomas A. Olson, David Kelma, Joseph Lai, Steven K. Shafer
  • Publication number: 20140331270
    Abstract: A frequency band selection device that can be inserted into a signal transmission line of a CATV system on the premise of a user includes at least two signal path sets between a tap side and a premise side. Each signal path set includes two discrete signal paths, a high frequency signal path for a downstream bandwidth and a low frequency signal path for an upstream bandwidth. The high frequency signal path and the low frequency signal path are separated by a cut-off transition frequency that is different for each signal path set. The device further includes a switch controller having at least two discrete switch positions. The switch controller chooses one of the switch positions as a result of an information signal. Each of the switch positions corresponds to a respective one of the signal path sets.
    Type: Application
    Filed: July 22, 2014
    Publication date: November 6, 2014
    Applicant: PPC Broadband, Inc.
    Inventors: Thomas A. Olson, David Kelma, Joseph Lai, Steven K. Shafer
  • Patent number: 8832767
    Abstract: A frequency band selection device that can be inserted into a signal transmission line of a CATV system on the premise of a user includes at least two signal path sets between a tap side and a premise side. Each signal path set includes two discrete signal paths, a high frequency signal path for a downstream bandwidth and a low frequency signal path for an upstream bandwidth. The high frequency signal path and the low frequency signal path are separated by a cut-off transition frequency that is different for each signal path set. The device further includes a switch controller having at least two discrete switch positions. The switch controller chooses one of the switch positions as a result of an information signal. Each of the switch positions corresponds to a respective one of the signal path sets.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: September 9, 2014
    Assignee: PPC Broadband, Inc.
    Inventors: Thomas A. Olson, David Kelma, Joseph Lai, Steven K. Shafer
  • Patent number: 8793755
    Abstract: A network interface device including a signal splitter which conducts CATV signals through an active branch circuit, the active branch circuit including an active signal conditioner which modifies characteristics of active branch signals conducted through the active branch circuit, a sensor connected to sense normal, inoperative and abnormally operative conditions, the sensor removing a control signal indicative of inoperative and abnormal operating conditions, a selectable switch connected to the active branch circuit, the selectable switch communicating the CATV signals between the CATV network and the subscriber devices when in an activated position, and the selectable switch passing the signals to a signal reduction path when in a deactivated position, the selectable switch assuming the deactivated position in response to the de-assertion of the control signal, and a phase cancellation circuit connected to the signal reduction path.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: July 29, 2014
    Assignee: PPC Broadband, Inc.
    Inventors: Noah P. Montena, Steven K. Shafer, Erdogan Alkan, Paul F. Bailey
  • Patent number: 8561125
    Abstract: An in-home entertainment network conditioning device for use with a coaxial device in a CATV network includes an input node adapted to conduct CATV signals in a first and second frequency range, and in-home entertainment signals in a third frequency range that is different from the first frequency range and the second frequency range. The device includes a first signal path branched from the input node that includes a low-pass filter adapted to conduct the CATV signals and reject the in-home entertainment signals. A second signal path in parallel electrical communication with the first signal path includes a high-pass filter in series electrical connection with a signal conditioning circuit. The high-pass filter is adapted to conduct the in-home entertainment signals and reject the CATV signals. The signal conditioning circuit attenuates and equalizes the in-home entertainment signals when coupled to the coaxial device.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: October 15, 2013
    Assignee: PPC Broadband, Inc.
    Inventors: Erdogan Alkan, Steven K. Shafer
  • Patent number: 8479247
    Abstract: A device may be used for conditioning an upstream bandwidth. The device can include a return path extending at least a portion of a distance between a supplier side connector and a user side connector, and a coupler connected within the return path, the coupler providing a secondary path. An offset or noise detection circuit is connected electrically downstream the coupler. A microprocessor is connected to the detection circuit. A variable signal level adjustment device is connected within the return path. The variable signal level adjustment device can be controlled by the microprocessor responsive to a detected offset level or noise floor in the return path.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: July 2, 2013
    Assignee: PPC Broadband, Inc.
    Inventor: Steven K. Shafer
  • Patent number: 8478199
    Abstract: A signal conditioning device, and method thereof, that can be used to maintain an amount of signal RF level adjustment, which is applied to an input, independently of the availability of the power supplied to the device. In one embodiment, the signal condition device comprises an attenuating circuit, which can have a variable attenuator and a non-volatile attenuator. The variable attenuator is configured to provide a primary amount of signal RF level adjustment in a power-on state, and the non-volatile attenuator is configured to store as a secondary amount the primary amount of the signal RF level adjustment. The non-volatile attenuator is likewise configured so that the secondary amount can be applied when the signal conditioning device enters into a power-off state so as to modify the RF level of the input in order to maintain a relative strength of the transmission at a remote device.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: July 2, 2013
    Assignee: PPC Broadband, Inc.
    Inventors: Noah Montena, Steven K. Shafer
  • Patent number: 8316163
    Abstract: In a presentation system, a source device provides uncompressed presentation content in an HDMI format. A first conversion device converts the uncompressed presentation content to an uncompressed second format and entirely transmits the uncompressed presentation content in the second format along an electrically conductive member. A second conversion device receives the uncompressed presentation content in the second format from the conductive member and converts the uncompressed presentation content to the HDMI format. For example, the conductive member may be that of a coaxial cable.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: November 20, 2012
    Assignee: John Mezzalingua Associates, Inc.
    Inventors: Stephen J. Skeels, Steven K. Shafer
  • Publication number: 20120212305
    Abstract: A filter circuit device is disclosed having a printed circuit board with first and second opposed major surfaces, an input, and an output. A first signal path is disposed on the printed circuit board extending from the input toward the output. A resonant circuit element is coupled to the first signal path and configured as a filter circuit. The resonant circuit element comprises a coil-wound tunable inductor element in serial electrical communication with an etched inductor element. The coil-wound tunable inductor element and the etched inductor element are in parallel electrical communication with a capacitor. A second signal path is further disposed on the printed circuit board extending from a first node on the first signal path. A shunt element is disposed on the second signal path that comprises a conductive grounding path terminated to electrical ground. An inductor and a capacitor in series electrical communication are coupled to the grounding path.
    Type: Application
    Filed: February 21, 2011
    Publication date: August 23, 2012
    Applicant: JOHN MEZZALINGUA ASSOCIATES, INC.
    Inventor: Steven K. Shafer
  • Publication number: 20120213083
    Abstract: A home network bandwidth diagnostic device includes a housing and a coaxial connector portion secured to the housing. The connector is adapted to electronically couple the diagnostic device to an active distribution port within a subscriber drop system. The diagnostic device further includes a radio frequency injection circuit coupled to the coaxial connector. The radio frequency injection circuit includes a signal injector configured to inject a radio frequency test signal at a first power level substantially to the subscriber drop system. The test signal is defined by a lower home network frequency and an upper home network frequency. The diagnostic device further includes a receiver test circuit having a diplexer circuit coupled to the coaxial connector. An input of the diplexer circuit is configured to accept the radio frequency test signal at a second, lower power level, and an output of the diplexer circuit includes a first test path to pass substantially only the lower home network frequency.
    Type: Application
    Filed: February 21, 2011
    Publication date: August 23, 2012
    Applicant: JOHN MEZZALINGUA ASSOCIATES, INC.
    Inventor: Steven K. Shafer
  • Patent number: 8179814
    Abstract: A premise signal conditioning device is provided that can be inserted into a signal transmission line of a CATV system on a premise of a user. The device includes at least a first diplexer set, each diplexer set including a supplier side diplexer and a premise side diplexer creating a return path for an upstream bandwidth and a forward path for a downstream bandwidth there between. The device further includes a detector configured to measure a level of signals present in a first segment of frequencies between the upstream bandwidth and the downstream bandwidth. The device further includes a switch controller configured to alter a width of the return path from a first width to a second width in response to a level of the signals exceeding a predetermined threshold level.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: May 15, 2012
    Assignee: John Mezzalingua Associates, Inc.
    Inventors: Steven K. Shafer, Michael E. Lawrence
  • Patent number: 8181211
    Abstract: An apparatus can include a modem and a conditioning device can be provided and coupled at a signal transmission line of a CATV system at a premise of a user according to embodiments of the application. The apparatus can provide selected information (e.g., Table 1) upstream for use that can improve operations or increase capabilities at one or more users.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: May 15, 2012
    Assignee: John Mezzalingua Associates, Inc.
    Inventors: Thomas A. Olson, David Kelma, Joseph Lai, Noah Montena, Steven K. Shafer
  • Publication number: 20120054819
    Abstract: An in-home entertainment network conditioning device for use with a coaxial device in a CATV network includes an input node adapted to conduct CATV signals in a first and second frequency range, and in-home entertainment signals in a third frequency range that is different from the first frequency range and the second frequency range. The device includes a first signal path branched from the input node that includes a low-pass filter adapted to conduct the CATV signals and reject the in-home entertainment signals. A second signal path in parallel electrical communication with the first signal path includes a high-pass filter in series electrical connection with a signal conditioning circuit. The high-pass filter is adapted to conduct the in-home entertainment signals and reject the CATV signals. The signal conditioning circuit attenuates and equalizes the in-home entertainment signals when coupled to the coaxial device.
    Type: Application
    Filed: July 11, 2011
    Publication date: March 1, 2012
    Applicant: JOHN MEZZALINGUA ASSOCIATES, INC.
    Inventors: Erdogan Alkan, Steven K. Shafer
  • Publication number: 20120054805
    Abstract: This invention disclosure relates to a conditioning device for improving the frequency response of signals conducted within an in-home cable infrastructure that includes both CATV bandwidth and in-home entertainment bandwidth. Disclosed is a CATV network device which includes a CATV signal transmission path and an in-home entertainment signal transmission path. Also disclosed is a signal conditioning circuit that is placed along the in-home entertainment signal transmission path. The signal conditioning circuit includes at least one LC resonant shunt circuit and at least one LC resonant tank circuit. In a particular embodiment two signal conditioning circuits are used. The CATV network device attenuates and equalizes the in-home entertainment signals transmitted along the in-home entertainment signal path so that the in-home entertainment signals don't interfere with the CATV signals.
    Type: Application
    Filed: July 7, 2011
    Publication date: March 1, 2012
    Applicant: JOHN MEZZALINGUA ASSOCIATES, INC.
    Inventors: Steven K. Shafer, Erdogan Alkan
  • Patent number: 8082570
    Abstract: Presented are method and apparatus embodiments to terminate an interruptible signal path when the interruptible signal path is unterminated. The apparatus can comprise a signal path from a supplier-side port thru a user-side port, a signal source arranged to provide a signal to the conductor; and a signal circuit arranged in the interruptible signal path. The apparatus can determine when the signal path is unterminated and, in that case, interrupt and terminate the signal path by putting a signal switching device in the appropriate state and/or sending signals from the signal path to a prescribed signal level connection point. When a user device is not connected or connected improperly, or the signals through the signal path are otherwise unterminated, the interruptible signal path can be interrupted and terminated. The method and apparatus embodiments can be used in various combinations with multiple signal paths having multiple signal branches.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: December 20, 2011
    Assignee: John Mezzalingua Associates, Inc.
    Inventors: Thomas A. Olson, David Kelma, Joseph Lai, Erdogan Alkan, David H. Jackson, Raymond W. Palinkas, Steven K. Shafer
  • Publication number: 20110258677
    Abstract: A device may be used for conditioning an upstream bandwidth. The device can include a return path extending at least a portion of a distance between a supplier side connector and a user side connector, and a coupler connected within the return path, the coupler providing a secondary path. An offset or noise detection circuit is connected electrically downstream the coupler. A microprocessor is connected to the detection circuit. A variable signal level adjustment device is connected within the return path. The variable signal level adjustment device can be controlled by the microprocessor responsive to a detected offset level or noise floor in the return path.
    Type: Application
    Filed: April 14, 2010
    Publication date: October 20, 2011
    Applicant: John Mezzalingua Associates, Inc.
    Inventor: Steven K. Shafer