HDMI Audio Volume Positioning Through Iterative CEC Commands

The patent segments the volume control process into discrete steps (volume up/down instructions) that can be sent through the CEC bus, while using iterative repetition of these segments to achieve precise volume positioning. Each CEC message represents a discrete control segment that can be individually transmitted and executed.

The patent employs periodic action by repeatedly sending volume control messages in a loop until the desired volume level is reached. The system periodically checks the current volume level and sends additional control messages as needed, creating a rhythmic control sequence that achieves precision through repetition rather than a single complex instruction.

The patent implements feedback by having the receiving device report back its current volume level after each control message is executed. This feedback loop allows the controlling device to determine how much further volume adjustment is needed and send the appropriate number of additional control messages, optimizing the control process based on actual system state rather than sending a fixed number of messages.

The patent uses partial action by sending volume control messages incrementally rather than attempting to set the exact volume in a single message. The system sends control messages in partial steps, checking the volume level after each batch, and continues with additional partial actions until the precise target volume is reached, rather than attempting excessive action that would require knowing the exact volume-step mapping in advance.