Patents by Inventor Bob Ridenour

Bob Ridenour 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).

  • Methods and apparatus for safe negotiation of high current for active cable assemblies
    Patent number: 10963027
    Abstract: Methods and apparatus for the safe negotiation of high current for a High-Definition Multimedia Interface (HDMI) active cable assembly. In one embodiment, a method for detecting a Power for Cable Assembly (PCA)-capable source is disclosed, the method including: detecting, by a cable assembly, an assertion of a defined voltage on a power supply pin; forwarding an assertion of a hot plug detect signal pin, by the cable assembly, from a sink device towards the PCA-capable source; detecting, by the cable assembly, a reduction in the defined voltage on the power supply pin for a defined period of time in response to the forwarding; and detecting, by the cable assembly, a re-assertion of the defined voltage on the power supply pin subsequent to the lapse of the defined period of time. PCA dependent cable assemblies and PCA capable source devices are also disclosed.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: March 30, 2021
    Assignee: Apple Inc.
    Inventors: Colin Whitby-Strevens, Bob Ridenour
  • METHODS AND APPARATUS FOR SAFE NEGOTIATION OF HIGH CURRENT FOR ACTIVE CABLE ASSEMBLIES
    Publication number: 20200133366
    Abstract: Methods and apparatus for the safe negotiation of high current for a High-Definition Multimedia Interface (HDMI) active cable assembly. In one embodiment, a method for detecting a Power for Cable Assembly (PCA)-capable source is disclosed, the method including: detecting, by a cable assembly, an assertion of a defined voltage on a power supply pin; forwarding an assertion of a hot plug detect signal pin, by the cable assembly, from a sink device towards the PCA-capable source; detecting, by the cable assembly, a reduction in the defined voltage on the power supply pin for a defined period of time in response to the forwarding; and detecting, by the cable assembly, a re-assertion of the defined voltage on the power supply pin subsequent to the lapse of the defined period of time. PCA dependent cable assemblies and PCA capable source devices are also disclosed.
    Type: Application
    Filed: November 4, 2019
    Publication date: April 30, 2020
    Inventors: Colin Whitby-Strevens, Bob Ridenour
  • Methods and apparatus for safe negotiation of high current for active cable assemblies
    Patent number: 10466757
    Abstract: Methods and apparatus for the safe negotiation of high current for a High-Definition Multimedia Interface (HDMI) active cable assembly. In one embodiment, a method for detecting a Power for Cable Assembly (PCA)-capable source is disclosed, the method including: detecting, by a cable assembly, an assertion of a defined voltage on a power supply pin; forwarding an assertion of a hot plug detect signal pin, by the cable assembly, from a sink device towards the PCA-capable source; detecting, by the cable assembly, a reduction in the defined voltage on the power supply pin for a defined period of time in response to the forwarding; and detecting, by the cable assembly, a re-assertion of the defined voltage on the power supply pin subsequent to the lapse of the defined period of time. PCA dependent cable assemblies and PCA capable source devices are also disclosed.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: November 5, 2019
    Assignee: Apple Inc.
    Inventors: Colin Whitby-Strevens, Bob Ridenour
  • METHODS AND APPARATUS FOR SAFE NEGOTIATION OF HIGH CURRENT FOR ACTIVE CABLE ASSEMBLIES
    Publication number: 20190018465
    Abstract: Methods and apparatus for the safe negotiation of high current for a High-Definition Multimedia Interface (HDMI) active cable assembly. In one embodiment, a method for detecting a Power for Cable Assembly (PCA)-capable source is disclosed, the method including: detecting, by a cable assembly, an assertion of a defined voltage on a power supply pin; forwarding an assertion of a hot plug detect signal pin, by the cable assembly, from a sink device towards the PCA-capable source; detecting, by the cable assembly, a reduction in the defined voltage on the power supply pin for a defined period of time in response to the forwarding; and detecting, by the cable assembly, a re-assertion of the defined voltage on the power supply pin subsequent to the lapse of the defined period of time. PCA dependent cable assemblies and PCA capable source devices are also disclosed.
    Type: Application
    Filed: September 29, 2017
    Publication date: January 17, 2019
    Inventors: Colin Whitby-Strevens, Bob Ridenour