Patent · US Active

Method and device for distributing electronic documents

US8806661B2 · kind B2 · utility

0Cited by

0References

16Claims

0Family size

Assignee

Sursen Corp. · CN

Inventors

Donglin Wang · Beijing, CN
Kaihong Zou · Beijing, CN

Key dates

Filing date	Feb 17, 2010
Grant date	Aug 12, 2014
Priority date	—
Expiry date	Dec 20, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG11B20/00811
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Embodiments provide a method and device for distributing an electronic document. The electronic document possesses first authorized copies information used to record a first number of authorized copies for the electronic document a local user may distribute. Every time the electronic document is distributed to a user, second authorized copies information is sent to the user, which second authorized copies information is used to record a second number of authorized copies for the electronic document the user may distribute, and the second number of authorized copies is less than or equal to the first number of authorized copies currently recorded in the first authorized copies information.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.