公开(公告)号：US10097881B2

公开(公告)日：2018-10-09

申请号：US15607624

申请日：2017-05-29

Applicant: EVA Automation, Inc.

Inventor： Gaylord Yu ,  Baochun Yuan

IPC: H04N5/44 ,  H04N5/46 ,  H04N21/4363 ,  G06F3/0481 ,  H04N21/414 ,  H04N21/422 ,  H04N21/431 ,  H04N21/435 ,  H04N21/482 ,  G06F3/0482 ,  H04N21/442 ,  G06F3/0484 ,  G06F3/0488 ,  G06F3/14 ,  G06F3/01 ,  G08C17/02 ,  H04M1/725 ,  G06F3/041 ,  H04N21/41 ,  H04N21/436 ,  H04N21/472 ,  G06F1/16 ,  H04N5/445 ,  H04N7/015 ,  H04N21/443

Abstract: An audio/video (A/V) hub includes a state-detection circuit coupled to at least one pin in a high-definition multimedia-interface input connector, which can electrically couple to an entertainment device. When electrically coupled to the entertainment device, the state-detection circuit establishes a ground loop between the electronic device and the entertainment device. A control circuit in the A/V hub detects whether there is electrical coupling with the entertainment device using the state-detection circuit. When the electrical coupling is detected, the control circuit provides a set of first control commands associated with different types of entertainment devices until, in response, content activity is detected via the input connector. Moreover, when the content activity is detected, the control circuit provides a set of second control commands associated with different providers of entertainment devices until a change in a state of the entertainment device is detected via the input connector and the state-detection circuit.

公开(公告)号：US10085059B2

公开(公告)日：2018-09-25

申请号：US15607626

申请日：2017-05-29

Applicant: EVA Automation, Inc.

Inventor： Gaylord Yu ,  Baochun Yuan

IPC: H04N5/44 ,  H04N5/46 ,  H04N21/4363 ,  G06F3/0481 ,  H04N21/414 ,  H04N21/422 ,  H04N21/431 ,  H04N21/435 ,  H04N21/482 ,  G06F3/0482 ,  H04N21/442 ,  G06F3/0484 ,  G06F3/0488 ,  G06F3/14 ,  G06F3/01 ,  G08C17/02 ,  H04M1/725 ,  G06F3/041 ,  H04N21/41 ,  H04N21/436 ,  H04N21/472 ,  G06F1/16 ,  H04N5/445 ,  H04N7/015 ,  H04N21/443

CPC classification number: H04N21/43635 ,  G06F1/1643 ,  G06F3/016 ,  G06F3/0416 ,  G06F3/04817 ,  G06F3/0482 ,  G06F3/0484 ,  G06F3/04847 ,  G06F3/04883 ,  G06F3/04886 ,  G06F3/14 ,  G08C17/02 ,  G08C2201/21 ,  G08C2201/30 ,  G08C2201/93 ,  G09G2370/06 ,  H04M1/72533 ,  H04M2250/22 ,  H04N5/4403 ,  H04N5/44543 ,  H04N7/015 ,  H04N21/4126 ,  H04N21/41407 ,  H04N21/42204 ,  H04N21/4312 ,  H04N21/435 ,  H04N21/43615 ,  H04N21/43637 ,  H04N21/44204 ,  H04N21/443 ,  H04N21/47217 ,  H04N21/482 ,  H04N2005/4408 ,  H04N2005/4425 ,  H04N2005/443

Abstract: An audio/video (A/V) hub includes a state-detection circuit coupled to at least one pin in a high-definition multimedia-interface input connector, which can electrically couple to an entertainment device. When electrically coupled to the entertainment device, the state-detection circuit establishes a ground loop between the electronic device and the entertainment device. A control circuit in the A/V hub detects whether there is electrical coupling with the entertainment device using the state-detection circuit. When the electrical coupling is detected, the control circuit provides a set of first control commands associated with different types of entertainment devices until, in response, content activity is detected via the input connector. Moreover, when the content activity is detected, the control circuit provides a set of second control commands associated with different providers of entertainment devices until a change in a state of the entertainment device is detected via the input connector and the state-detection circuit.