  It is clarified that Heisenberg quantization was proposed in empty space.
Based on established experiments, the generalized Heisenberg quantization in
physical space is obtained. Physical space quantization includes important new
physics: Proving that physical space is noncommutative space; Exploring the
existence of a non-zero minimal length scale, which leads to new space
structures and the existence of the space minimal finite volume; Finding a new
correlativity of the property of space with the motion status of the system:
space non-commutativity is determined by the momentum non-commutativity.
