Title:
データを共有するエンティティの物理的位置の保証
Document Type and Number:
Japanese Patent JP5450417
Kind Code:
B2
Abstract:
A method and system for ensuring that data is only distributed within a certain physical area are disclosed. In one embodiment, a method provides that data is distributed only if the distance between a source and a sink is within a distance threshold. Under this system, the distance between the source and the sink may be estimated directly or indirectly. In some embodiments, the distance may be estimated by estimating the propagation delay for a signal traversing between the devices. The physical distance between the devices may be determined from the propagation delay. If the physical distance is outside a threshold value, the source may be prohibited from transmitting the data or the sink may refuse to display the data.
Inventors:
North Cut Jay Duane
Schmidt Brian Kay
Schmidt Brian Kay
Application Number:
JP2010523010A
Publication Date:
March 26, 2014
Filing Date:
July 30, 2008
Export Citation:
Assignee:
Silicon Image, Incorporated
International Classes:
G06F21/62; H04L45/02; G06F13/00; H04L45/122
Domestic Patent References:
| JP2007519090A | ||||
| JP2007086902A | ||||
| JP2007201851A |
Foreign References:
| WO2007066637A1 |
Attorney, Agent or Firm:
Koichi Tsujii
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Hiroshi Uesugi
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Hiroshi Uesugi