Two-character transliteration of the surname Beck (or Bek/Beck) —
北 (běi, "north") covers "be" and
克 (kè) covers a final "-k" / "-ck."
克 is the universal foreign-name character for any final hard "k" sound (
奥巴马 →
巴拉克,
麦当劳 →
不 — but think
坦克 "tank,"
米克 "Mick"). The same string also closes the much more common name
魁北克 (Kuíběikè, "Quebec").