US 12,618,917 B2 · Error detection in LED packages

Abstract

Light-emitting diode (LED) packages and more particularly error detection in LED packages is disclosed. LED packages are arranged for cascade communication as part of a larger LED display. A separate active electrical element is integrated with each LED package for facilitating active matrix addressing from a data stream, checking input error detection codes, and generating new output error detection codes to the data stream. Each electrical element within each LED package is separately capable of changing one or more portions of received data in the data stream, transmitting the changed data to the next downstream LED package, and generating output error detection codes based on the changed data. When the active electrical element identifies corrupted data based on input error detection codes, the generated output error detection codes may be intentionally corrupted so downstream LED packages will also identify the respective data as being corrupted.

Claims23

Dependent claims

A light-emitting diode (LED) package comprising:

at least one LED chip;
and
an active electrical element electrically connected to the at least one LED chip, the active electrical element configured to:
receive a data block and an input error detection code from a communication channel;
change at least one portion of the data block;
generate an output error detection code corresponding to the at least one portion of the data block that is changed;
and
apply bit reversal to the output error detection code to provide a corrupt output error detection code that replaces the input error detection code.

5 more elements

Dependencies are inferred from the claim text.

Error detection in LED packages

Life of this patent

Error detection in LED packages

Life of this patent

Abstract

Claims23