Methods and arrangements for error correction in decoding data from an electromagnetic radiator

An apparatus for error correction in decoding data comprising:

• sample logic to receive values determined from frames, the values indicative of light emanated from a light source, wherein the frames comprise a packet of data;
• and to process the values to determine chips by selecting chips indicative of the values, wherein the chips are indicative of on and off states of the light source in the respective frames;
• and
• a data associator coupled with frequency logic to process the chips to detect a location of a start frame delimiter within the chips;
• and to process the chips, based upon the location of the start frame delimiter within the chips, to determine bits of the packet of data.

A system for error correction in decoding data comprising:

• a light detector to detect light in frames from light source at a sampling frequency to produce values associated with the light for the respective frames;
• sample logic to receive the values determined from the frames, the values indicative of light emanated from a light source, wherein the frames comprise a packet of data;
• and to process the values to determine chips by selecting chips indicative of the values, wherein the chips are indicative of on and off states of the light source in the respective frames;
• and
• a data associator coupled with frequency logic to process the chips to detect a location of a start frame delimiter within the chips;
• and to process the chips, based upon the location of the start frame delimiter within the chips, to determine bits of the packet of data.

A program product for error correction in decoding data comprising:

• a storage medium comprising instructions to be executed by a processor-based device, wherein the instructions, when executed by the processor-based device, perform operations, the operations comprising:
• receiving values determined from frames, the values indicative of light emanated from a light source, wherein the frames comprise a packet of data;
• processing the values to determine chips, wherein processing the values comprises selecting chips indicative of the values, wherein the chips are indicative of on and off states of the light source in the respective frames;
• processing the chips to detect a location of a start frame delimiter within the chips;
• and
• processing the chips, based upon the location of the start frame delimiter within the chips, to determine bits of the packet of data.