HDMI network control of a media center computing device

• US 8,990,437 B2
• Filed: 11/13/2007
• Issued: 03/24/2015
• Est. Priority Date: 11/13/2007
• Status: Active Grant

• Current Assignee: NVIDIA Corporation
• Original Assignee: NVIDIA Corporation
• Inventors: Overby, Mark A., Chapman, Robert William
• Primary Examiner(s): Wong, Titus
• Application Number:
  US11/939,521
• Publication Number:
  US 20090125642A1
• Time in Patent Office: 2,688 Days
• Field of Search: 710/4
• US Class Current: 710/4
• CPC Class Codes: H04L 12/2814 Exchanging control software or macros for controlling appliance services in a home automation network arrangements for maintenance or administration involving configuration of the network and network elements H04L41/08
• CPC Class Codes: H04L 12/282 based on user interaction within the home receiver circuitry for displaying additional information being controlled by a remote control apparatus H04N21/42204
• CPC Class Codes: H04L 12/2836 Protocol conversion between an external network and a home network controlling appliance services of a home automation network from a device located outside the home and the home network H04L12/2818; protocol conversion H04L69/08; adaptation of digital video signals for transport over a specific home network H04N7/24

Abstract

A software or hardware agent running on a personal computing (PC) device provides allows a consumer electronic device connected to the PC device over a high definition multimedia interface (HDMI) network to control the PC device using standardized commands. This enables a user to control the PC device and other consumer electronic devices that are connected to the HDMI network using a single interface. The agent responds as a consumer electronic device and translates the standardized commands as universal serial bus (USB) human interface device (HID) input reports to the PC device operating system. The agent represents the specific capabilities of the PC device as standard consumer electronic device controls.

Claims

1. A method for controlling a computing device using consumer electronic devices over a high definition multimedia interface (HDMI) network, comprising:

reporting one or more consumer electronics control command capabilities of the computing device to the consumer electronic devices coupled to the computing device over the HDMI network;

receiving a consumer electronics control command from a first consumer electronic device over the HDMI network;

storing the consumer electronics control command in a buffer associated with an HDMI controller;

translating the stored consumer electronics control command into a universal serial bus (USB) human interface device (HID) report;

storing the translated USB HID report in a USB stack; and

processing the USB HID report stored in the USB stack to execute the consumer electronics control command.

2. The method of claim 1, wherein an additional computing device that is configured as a HDMI source device is coupled to the HDMI network.

3. The method of claim 2, further comprising the steps of:

determining additional computing device control capabilities of the consumer electronic devices and the computing device;

enumerating the additional computing device by using a USB HID that is configured to represent the control capabilities of the computing device; and

transmitting a control command from the additional computing device to the computing device over the HDMI network to control the computing device.

4. The method of claim 1, wherein a single wireless remote control is used to allow a user to interface with the first consumer electronic device to control the computing device over the HDMI network.

5. The method of claim 1, wherein a graphical user interface is presented on a display device of the first consumer electronic device to allow a user to control the computing device over the HDMI network.

6. The method of claim 1, wherein the consumer electronic devices implement a consumer electronic control (CEO) channel specified by HDMI 1.2a.

7. The method of claim 1, wherein the computing device is configured to receive device controlling signals and at least one of audio data, visual data, and multimedia data.

8. The method of claim 1, wherein the computing device is configured as a HDMI source device and further comprising the steps of:

discovering the consumer electronic devices that are coupled to the HDMI network to produce discovered consumer electronic devices;

determining control capabilities of each discovered consumer electronic device; and

enumerating each discovered consumer electronic device as a universal serial bus (USB) human interface device (HID) configured to represent the control capabilities in order to allow a user to control the discovered consumer electronic devices over the HDMI network from the computing device.

9. The method of claim 1, further comprising the step of reporting a consumer electronics device that is directly coupled to the computing device as an HDMI sink device to the consumer electronic devices coupled to the computing device over the HDMI network to allow a user to control the electronics device that is directly coupled to the computing device over the HDMI network.

10. A non-transitory computer readable medium storing instructions that, when executed by a processor, cause the processor to enable a computing device to be controlled by consumer electronic devices over a high definition multimedia interface (HDMI) network, by performing the steps of:

reporting one or more consumer electronics control command capabilities of the computing device to the consumer electronic devices coupled to the computing device over the HDMI network;

receiving a consumer electronics control command from a first consumer electronic device over the HDMI network;

storing the consumer electronics control command in a buffer associated with an HDMI controller;

translating the stored consumer electronics control command into a universal serial bus (USB) human interface device (HID) report;

storing the translated USB HID report in a USB stack; and

processing the USB HID report stored in the USB stack to execute the consumer electronics control command.

11. The non-transitory computer readable medium of claim 10, wherein the consumer electronic devices implement a consumer electronic control (CEC) channel specified by HDMI 1.2a.

12. A computing device configured to be controlled by a consumer electronic device over a high definition multimedia interface (HDMI) network, the computing device comprising:

an HDMI controller that is coupled to the HDMI network and configured to receive control commands from the consumer electronic device; and

an agent configured to;

report one or more consumer electronics control command capabilities of the computing device to the consumer electronic devices coupled to the computing device over the HDMI network;

receive a consumer electronics control command from a first consumer electronic device over the HDMI network;

store the consumer electronics control command in a buffer associated with the HDMI controller;

translate the stored consumer electronics control command into a universal serial bus (USB) human interface device (HID) report;

store the translated USB HID report in a USB stack; and

process the USB HID report stored in the USB stack to execute the consumer electronics control command.

13. The system of claim 12, wherein the computing device further comprises a system memory configured to store the agent and a USB stack, and the agent is a software program configured to interface between the USB stack and the HDMI controller.

14. The system of claim 12, wherein the computing device further comprises a USB controller, and the agent is a virtual USB device that is coupled to the USB controller and configured to interface between the USB controller and the HDMI controller.

15. The system of claim 12, further comprising an additional computing device that is coupled to the HDMI network and configured as a HDMI source device to:

determine the control capabilities of the computing device reporting as consumer electronic device sink; and

enumerating the additional computing device as a USB HID that is configured to represent the control capabilities of the computing device reporting as consumer electronic device sink.

16. The system of claim 12, wherein the computing device is configured as a HDMI sink device.

17. The system of claim 12, wherein the consumer electronic device comprises a single wireless remote control configured to allow a user to interface with the consumer electronic device to control the computing device and any other consumer electronic devices that are coupled to the HDMI network.

18. The system of claim 12, wherein the consumer electronic device comprises a display device that is configured to present a graphical user interface to allow a user to control the computing device and any other consumer electronic devices that are coupled to the HDMI network.

19. The system of claim 12, wherein the consumer electronic device implements a consumer electronic control (CEO) channel specified by HDMI 1.2a.

20. The system of claim 12, wherein the computing device is further configured to receive device controlling signals and at least one of audio data, visual data, and multimedia data.