US Patent Issued to Infinera on Sept. 23 for "Multi-length look-up table spherical constellation shaping" (Canadian, American Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,425,106, issued on Sept. 23, was assigned to Infinera Corp..

"Multi-length look-up table spherical constellation shaping" was invented by David S. Millar (San Jose, Calif.), Mehdi Torbatian (Ottawa) and Han Henry Sun (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Consistent with the present disclosure, an encoder circuit is provided at a transmit side of an optical fiber link that maps an input sequence of bits of fixed length k to a sequence of symbols of a codeword of length n, such that the symbols of the codeword define a predetermined transmission probability distribution. In one example, each subgroup of bits of the k input bit ...