List of Irp Protocols, version

Glossary Glossary

CRC Cyclic Redundancy Check (CRC)

An elaborate form of checksum, see Wikipedia.

DecodeIR DecodeIR

Library for the decoding of IrSequences. Originally written by John Fine, extended by others; used by many widely spread programs as a shared library (IrScrutinizer version 1, IrpMaster, IrScope, RemoteMaster). Written in C++ with Java Native Interface. The current (and most likely final) version is 2.45, released in January 2015. Current official documentation. License: public domain. Binaries for Windows, Linux, and Mac, source code. Arduino port.

ditto ditto

Simple sequence, without payload information, that is repeated as a repeat sequence's. For an example, see NEC1.

ending ending sequence

IR sequence that is sent exactly once when a button is released, after the repeats have ended. Only present if a few protocols, like NRC17 and OrtekMCE.

executor

An embedded "program" for the rendering and transmission of one or several protocols on an embedded processor. One executor can manage several protocols; also, for one protocol there may be several alternative executors. An executer has its own parameterization, more-or-less similar to the parameterization of the protocol. Used in UEI Remotes and RemoteMaster.

intro intro sequence

IR sequence that is sent exactly once when a button is held pressed. (If more is sent if the button is held, then it is the repeat- and ending sequence.)

relaxed relaxed protocol

A relaxed protocol (in general recognized by the suffix _relaxed in the name) is a protocol, derived from another protocol, where the recognition is in some way "relaxed", for example by some checks being left out. For example, a checksum may be just reported by its value, instead of being checked (possibly leading to the decode being considered as invalid). This can be useful for identifying imperfectly learned, or otherwise flawed IR signals. It should normally be marked decode-only, since rendering is normally meaningless.

repeat repeat sequence

IR sequence that is sent repeatedly when a button is held down, after the intro sequence has been sent.

spurious spurious decodes

An imperfectly measured signal that incorrectly matches a protocol (false positive).