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System platform supporting infrared receiver/transmitter and operation method thereof

  • US 9,858,087 B2
  • Filed: 07/10/2014
  • Issued: 01/02/2018
  • Est. Priority Date: 07/11/2013
  • Status: Active Grant
First Claim
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1. An operation method of a system platform, comprising:

  • receiving, by an infrared receiver, an infrared signal from a consumer infrared (CIR) device, the infrared signal containing encoded event data;

    transmitting, by the infrared receiver, the infrared signal to a transmission interface;

    generating, by the transmission interface, an interrupt notification signal in response to the received infrared signal;

    transmitting, by the transmission interface, the interrupt notification signal to an operation system power management agent (OSPM) via an advanced configuration and power interface (ACPI);

    transmitting, by the transmission interface, the infrared signal to a universal extensible firmware interface (UEFI) basic input output system (BIOS);

    executing an infrared application program running under an operating system stage in response to the interrupt notification signal received from the transmission interface to generate a system management interrupt (SMI) in the UEFI BIOS to execute a system management mode (SMM) program, causing the system platform to enter a BIOS stage from the operating system stage; and

    executing, by the UEFI BIOS in the BIOS stage, a decoding driver program, to decode the infrared signal into event data, and store the event data in a storage device.

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