The　4-bit　absolute　value　detector　is　a　common　circuit　design　used　in　logical　circuit　bit　operations.　The　needle　for　the　current　absolute　value　detection　design　method,　mostly　using　a　semi　conditioner　or　comparator　in　combination　with　a　multi-way　replicator　to　solve　problems　such　as　the　advance,　which　inevitably　leads　to　a　decrease　in　the　performance　of　the　circuit.　In　this　article,　we　have　further　optimized　the　circuitry　by　combining　the　traditional　semiconductor　or　comparator　with　the　multi-directional　replicator.　First,　this　paper　has　achieved　the　absolute　value　conversion　function　in　combination　with　the　comparator　and　the　multi-way　replicator.　Next,　we　calculated　the　corresponding　indicators　for　the　two　designs.　Specifically,　because　of　the　complexity　of　the　comparator　to　solve　the　advance　problem,　we　abandoned　the　design　of　a　comparator　combined　with　a　multi-way　replicator.　The　next　step　is　to　connect　a　comparative　circuit　to　the　output　of　the　circuit　of　the　absolute　value　conversion　function　and　ultimately　realize　the　detection　of　absolute　values.　Finally,　is　the　energy　optimization,　through　the　design　and　determination　of　the　relevant　parameters,　we　sacrifice　part　of　the　circuit　delay　to　obtain　lower　energy　losses.　©　2025　SPIE.