Methods and apparatus for low power audio visual interface calibration

摘要

Methods and apparatus for calibration of interface operation of a display device. In one exemplary embodiment of the invention, an embedded DisplayPort (eDP) source element (such as a graphics processing unit (GPU)) configures itself to support the minimum requirements necessary to support a sink element (such as a screen display). Unlike prior art solutions, minimum sink requirements are identified during a calibration process, and the source is configured accordingly. By tailoring the source to the specific requirements of the sink, the device can initialize faster, consume less power, etc. Moreover, in another aspect of the present invention, if a device does not initialize to an expected configuration based on prior calibration settings, the device can be flagged as having faulty or failing components.

主权项

1. An apparatus comprising a transmitter and a receiver, where the transmitter is coupled to the receiver with a lossy connection, comprising:
a processor; and a computer readable apparatus having a storage medium with at least one computer program stored thereon, the at least one computer program configured to, when executed on the processor: determine one or more minimum first receiver requirements of the receiver; calibrate one or more first transmitter settings based at least in part on the one or more minimum first receiver requirements; assign the calibrated one or more first transmitter settings to one or more relative anchor points; store the one or more relative anchor points; and responsive to a subsequent operation, initiate a link based on the stored one or more relative anchor points.