SHARING COMMUNICATION LINES AMONG MULTIPLE BUSES

    公开(公告)号:US20240119019A1

    公开(公告)日:2024-04-11

    申请号:US18045219

    申请日:2022-10-10

    Inventor: Peter A. Hansen

    CPC classification number: G06F13/4027 G06F2213/0016

    Abstract: A process includes coupling a push-pull driver of a first bus device to a plurality of communication lines that are associated with a first bus to allow the first bus device to access the first bus using push-pull signaling. The process includes sharing a set of communication lines with the second bus. The sharing includes coupling an open drain driver of a second bus device to the set of communication lines to allow the second bus device to access the second bus using open drain signaling. The sharing includes using the set of communication lines in first time periods in which the first bus device accesses the first bus and using the set of communication lines in second time periods other than the first time periods in which the second bus device accesses the second bus. The sharing includes isolating a push-pull driver of the first bus device from the set of communication lines responsive to the second time periods.

    Providing video content for pre-boot and post-boot environments of computer platforms

    公开(公告)号:US12035068B2

    公开(公告)日:2024-07-09

    申请号:US17449572

    申请日:2021-09-30

    CPC classification number: H04N5/268 G06F13/4022

    Abstract: A process includes, responsive to a computer platform being in a pre-operating system mode of operation, a first controller receiving serial data from a first external communication connector of the computer platform and the first controller providing a video output based on the serial data; and routing the video output of the first controller to a display device connector. The process includes, determining whether a video driver of the computer platform is communicating with a second controller via a second external communication connector of the computer platform. The video driver is associated with an operating system mode of operation of the computer platform. The process includes, in response to determining that the video driver is communicating with the second controller, routing a video output of the second controller to the display device connector in place of the video output of the first controller.

    Sharing communication lines among multiple buses

    公开(公告)号:US12130765B2

    公开(公告)日:2024-10-29

    申请号:US18045219

    申请日:2022-10-10

    Inventor: Peter A. Hansen

    CPC classification number: G06F13/4027 G06F2213/0016

    Abstract: A process includes coupling a push-pull driver of a first bus device to a plurality of communication lines that are associated with a first bus to allow the first bus device to access the first bus using push-pull signaling. The process includes sharing a set of communication lines with the second bus. The sharing includes coupling an open drain driver of a second bus device to the set of communication lines to allow the second bus device to access the second bus using open drain signaling. The sharing includes using the set of communication lines in first time periods in which the first bus device accesses the first bus and using the set of communication lines in second time periods other than the first time periods in which the second bus device accesses the second bus. The sharing includes isolating a push-pull driver of the first bus device from the set of communication lines responsive to the second time periods.

    PROVIDING VIDEO CONTENT FOR PRE-BOOT AND POST-BOOT ENVIRONMENTS OF COMPUTER PLATFORMS

    公开(公告)号:US20230099385A1

    公开(公告)日:2023-03-30

    申请号:US17449572

    申请日:2021-09-30

    Abstract: A process includes, responsive to a computer platform being in a pre-operating system mode of operation, a first controller receiving serial data from a first external communication connector of the computer platform and the first controller providing a video output based on the serial data; and routing the video output of the first controller to a display device connector. The process includes, determining whether a video driver of the computer platform is communicating with a second controller via a second external communication connector of the computer platform. The video driver is associated with an operating system mode of operation of the computer platform. The process includes, in response to determining that the video driver is communicating with the second controller, routing a video output of the second controller to the display device connector in place of the video output of the first controller.

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