The formal Chinse legal term for "copyright" is 著作權 (See 中華人民共和國著作權法). The term 版權 originated in Japan many years ago, but is no longer used there. The contemporary concept of copyright ass expressed in the Berne International Copyright Convention includes basically two categories of rights, namely, the rights in personam of the author (著作人的人格權) and the property rights in the work (著作物財產權). The former belongs to the author permanently or for a statotury period of time and is not assignable (不可轉讓), but the latter can be assigned to another person (e.g. a publisher). The assignment may be arranged for only an agreed period of time or for an agreed number of editions or prints. This is why a publication may show that the copyright belongs to the author and that "all rights reserved" by the publishing company. This is because the U.S.Copyright Act requires the so-called "notice of copyright" to tell people who is the owner of the copoyright and who who is the owner of the property right to the work. Although this legal requirement is no longer of significance after the U.S. joined the Berne Convention, American publishers still post the notice of copyright as a practice. Hope the brief information will be of some help to you.