Remote control system and method having reduced vulnerability to noise

摘要

A remote control system and method having reduced vulnerability to noise. In an environment having noise at a frequency of infrared signals transmitted by a remote controller, errors and malfunctions in a remote control receiving device such as a set top box are controlled by selectively transmitting an entire code including header pulses and data pulses, or a repeat code including header pulses, data pulses and repeater pulses from the remote controller, and receiving and using the entire code or repeat code at the remote receiving device.

主权项

1. A remote control system, comprising:
a remote controller to repeatedly transmit a code comprising header pulses and data pulses corresponding to a pushed button; and a remote control receiver to receive and decode the code, and to determine whether to process instructions corresponding to the code based on a difference between a first decoding time when the code is decoded and a second decoding time when a second code immediately preceding the code in decoded, wherein the remote controller is configured to repeatedly transmit the code in response to the button being pushed once.