Digital information transmitting system through an optical transmission medium

Claim 2

A digital distributed information transmitting system comprising plural stations and means interconnected to said stations via an optical transmission medium for managing information exchanges between said stations, each station being fit to transmit informations to every other station and itself and to receive informations from every other station and itself through said managing means; each station including an optical information emitter and an optical information receiver; said managing means including plural optical receiving means for converting said optical informations emitted from said station emitters into electrical informations respectively, means for processing said electrical station informations to constitute an electrical combined information, and a single optical emitting means for converting said electrical combined information into an optical combined information to be distributed to all said station receivers; and said optical transmission medium comprising plural optical forward lines for each undirectionally carrying said optical information from one of said station emitters to one of said receiving means in said managing means respectively, and a single optical backward line for unidirectionally carrying and distributing said optical combined information from said emitting means in said managing means to all said station receivers.

Claim 3

The system according to claim 1, wherein said combined information in said backward line has a higher rate than the information rate in each of said forward lines.

Claim 4

The system according to claim 1, wherein said informations emitted from said station emitters are in synchronous mode.

Claim 5

The system according to claim 1, wherein said informations emitted from said station emitters are in asyn-chronous mode.

Claim 6

The system according to claim 1, wherein information emitted from said emitter in each of said stations is in the shape of messages each including a heading and useful informations, and wherein said processing means comprises means connected to said receiving means for recovering clock signals relative to said stations respectively, means connected to said clock signal recovering means for recognizing and detecting said headings in said messages emitted from said station emitters, means connected to said heading recognizing and detecting means for storing said useful informations in said messages emitted from said station emitters, means connected to said storing means and controlled by said heading recognizing and detecting means for grouping the stored useful informations in each message with a predetermined heading, and means for encoding the grouped informations into said electrical combined information to emit it by said single emitting means.

Claim 7

A digital information transmitting system comprising: - stations each including an optical information emitter and an optical information receiver, - two means for managing the exchanges of information between said stations, each of said managing means including several optical means for receiving informations emitted from said emitters of said stations respectively, a single optical means for emitting informations to all said receivers of said stations, and an additional optical means for receiving informations emitted from said single emitting means of the other managing means, and - an optical transmission medium between said stations and said two managing means comprising optical unidirectional forward lines for each linking said emitter of a respective station to a respective receiving means of one of said managing means and to a respective receiving means of the other managing means through an optical dis-tributing means, and a single optical bidirectional distri-buted backward line for linking said single emitting means of said two. managing means to said receivers of said stations and said additional receiving means of said two managing means.

Claim 8

A digital information transmitting system comprising: - stations each including an optical information emitter and an optical information receiver, - two means for managing the exchanges of information between said stations, each of said managing means including several optical means for receiving informations emitted from said emitters of said stations respectively, a single optical means for emitting informations to all said receivers of said stations, and an additional optical means for receiving informations emitted from said single emitting means of the other managing means, and - an optical transmission medium between said stations and said two managing means comprising optical unidirectional forward lines for each linking said emitter of a respective station to a respective receiving means of one of said managing means and to a respective receiving means of the other managing means through an optical dis-tributing means, and a single optical bidirectional distri-buted backward line for linking said single emitting means of said two. managing means to said receivers of said stations and said additional receiving means of said two managing means.

Claim 9

7 - A digital information transmitting system comprising : - stations each including an optical information emitter and two optical information receivers, - two means for managing the exchanges of informations between said stations, each of said managing means including several optical means for receiving informations emitted from said emitters of said stations respectively, a single optical means for emitting informations to one of said two receivers of all said stations and an additional optical means for receiving informations emitted from said single emitting means of the other managing means, and - an optical transmission medium between said stations and said two managing means comprising optical unidirectional forward lines for each linking said emitter of a respective station to a respective receiving means of one of said managing means and to a respective receiving means of the other managing means through an optical distributing means, and two optical unidirectional distributed backward lines for each linking said single emitting means of one of said two managing means to one of said two receivers of said stations and said additional receiving means of said other managing means.

Claim 10

7 - A digital information transmitting system comprising : - stations each including an optical information emitter and two optical information receivers, - two means for managing the exchanges of informations between said stations, each of said managing means including several optical means for receiving informations emitted from said emitters of said stations respectively, a single optical means for emitting informations to one of said two receivers of all said stations and an additional optical means for receiving informations emitted from said single emitting means of the other managing means, and - an optical transmission medium between said stations and said two managing means comprising optical unidirectional forward lines for each linking said emitter of a respective station to a respective receiving means of one of said managing means and to a respective receiving means of the other managing means through an optical distributing means, and two optical unidirectional distributed backward lines for each linking said single emitting means of one of said two managing means to one of said two receivers of said stations and said additional receiving means of said other managing means.

Claim 11

8 - A digital information transmitting system comprising : - two groups of stations, each station including an optical information emitter and an optical information receiver, - at least an additional station including an optical information emitter and two optical information receivers, - two means respectively assigned to said two station groups for each managing the exchanges of informations between said stations of said respective group and the other managing means, each of said managing means including several optical means for receiving informations emitted from said emitters of said stations of said respective group respectively, a single optical means for emitting informations to said receivers of said stations of said respective group and to one of said two receivers of said additional station, and an additional optical means for receiving informations emitted from said emitter of said additional station, and - two optical transmission mediums respectively assigned to said two station groups, each transmission medium being interconnected between said stations and said managing means of said respective group and said additional station and comprising several optical unidirectional forward lines for each linking said emitter of a respective station of said respective group to a respective receiving means of said managing means of said respective group, a single optical unidirectional distributed backward line for linking said single emitting means of said managing means of said respective group to said receivers of all said stations of said respective group and to one of said two emitters of said additional station, and an additional optical unidirectional forward line for linking said emitter of said additional station to said additional receiving means of said managing means of said respective group.

Claim 12

8 - A digital information transmitting system comprising : - two groups of stations, each station including an optical information emitter and an optical information receiver, - at least an additional station including an optical information emitter and two optical information receivers, - two means respectively assigned to said two station groups for each managing the exchanges of informations between said stations of said respective group and the other managing means, each of said managing means including several optical means for receiving informations emitted from said emitters of said stations of said respective group respectively, a single optical means for emitting informations to said receivers of said stations of said respective group and to one of said two receivers of said additional station, and an additional optical means for receiving informations emitted from said emitter of said additional station, and - two optical transmission mediums respectively assigned to said two station groups, each transmission medium being interconnected between said stations and said managing means of said respective group and said additional station and comprising several optical unidirectional forward lines for each linking said emitter of a respective station of said respective group to a respective receiving means of said managing means of said respective group, a single optical unidirectional distributed backward line for linking said single emitting means of said managing means of said respective group to said receivers of all said stations of said respective group and to one of said two emitters of said additional station, and an additional optical unidirectional forward line for linking said emitter of said additional station to said additional receiving means of said managing means of said respective group.

Claim 13

9 - A digital information transmitting system comprising : - two groups of stations, each station including an optical information emitter and an optical information receiver, - two means respectively assigned to said two station groups for each managing the exchanges of informations between said stations of said respective group and the other managing means, each of said managing means including optical means for receiving informations emitted from said emitters of all said stations of said respective group respectively, a single optical means for emitting informations to said receivers of said stations of said respective group and to the managing means of the other group, and at least an additional optical means for receiving informations emitted from said single emitting means of said managing means of said other group, and - two optical transmission mediums respectively assigned to said station groups, each transmission medium being interconnected between said stations and said managing means of said respective group and comprising several optical unidirectional forward lines for each linking said emitter of a respective station of said respective group to a respective receiving means of said managing means of said respective group, and a single optical bidirectional distributed backward line for linking said single emitting means of said managing means of said respective group to said receivers of said stations of said respective group and to said additional receiving means of said managing means of the other group.

Claim 14

9 - A digital information transmitting system comprising : - two groups of stations, each station including an optical information emitter and an optical information receiver, - two means respectively assigned to said two station groups for each managing the exchanges of informations between said stations of said respective group and the other managing means, each of said managing means including optical means for receiving informations emitted from said emitters of all said stations of said respective group respectively, a single optical means for emitting informations to said receivers of said stations of said respective group and to the managing means of the other group, and at least an additional optical means for receiving informations emitted from said single emitting means of said managing means of said other group, and - two optical transmission mediums respectively assigned to said station groups, each transmission medium being interconnected between said stations and said managing means of said respective group and comprising several optical unidirectional forward lines for each linking said emitter of a respective station of said respective group to a respective receiving means of said managing means of said respective group, and a single optical bidirectional distributed backward line for linking said single emitting means of said managing means of said respective group to said receivers of said stations of said respective group and to said additional receiving means of said managing means of the other group.

Claim 15

10 - A digital information transmitting system comprising : - several groups of stations, each station including an optical information emitter and an optical information receiver, - several station information managing means respectively assigned to said station groups, each managing means including several optical means for receiving informations emitted from said emitters of said stations of the respective group respectively, a single optical means for emitting informations to said receivers of said stations of said respective group, and additional information receiving and emitting means, - several optical transmission mediums respectively assigned to said station groups, each transmission medium being interconnected to said stations and said managing means of the respective group and comprising several optical unidirectional forward lines for each linking said emitter of a respective station of said respective group to a respective receiving means of said managing means of said respective group, and a single optical unidirectional distributed backward line for linking said single emitting means of said managing means of said respective group to said receivers of said stations of said respective group, - additional means for managing the informations exchanged between said station groups, said additional managing means including several optical means for respectively receiving informations emitted from said additional emitting means of said managing means of said groups, and a single optical means for emitting grouped informations to said additional receiving means of said managing means of said groups, and - an additional optical transmission medium interconnected between said managing means of said groups and comprising several optical unidirectional forward lines for each linking said additional emitting means of said managing means of said groups to said receiving means of said additional managing means respectively, and a single optical unidirectional distributed backward line for linking said single emitting means of said additional managing means to said additional receiving means of said managing means of said groups.

Claim 16

10 - A digital information transmitting system comprising : - several groups of stations, each station including an optical information emitter and an optical information receiver, - several station information managing means respectively assigned to said station groups, each managing means including several optical means for receiving informations emitted from said emitters of said stations of the respective group respectively, a single optical means for emitting informations to said receivers of said stations of said respective group, and additional information receiving and emitting means, - several optical transmission mediums respectively assigned to said station groups, each transmission medium being interconnected to said stations and said managing means of the respective group and comprising several optical unidirectional forward lines for each linking said emitter of a respective station of said respective group to a respective receiving means of said managing means of said respective group, and a single optical unidirectional distributed backward line for linking said single emitting means of said managing means of said respective group to said receivers of said stations of said respective group, - additional means for managing the informations exchanged between said station groups, said additional managing means including several optical means for respectively receiving informations emitted from said additional emitting means of said managing means of said groups, and a single optical means for emitting grouped informations to said additional receiving means of said managing means of said groups, and - an additional optical transmission medium interconnected between said managing means of said groups and comprising several optical unidirectional forward lines for each linking said additional emitting means of said managing means of said groups to said receiving means of said additional managing means respectively, and a single optical unidirectional distributed backward line for linking said single emitting means of said additional managing means to said additional receiving means of said managing means of said groups.

Claim 17

11 - A digital information transmitting system comprising : - stations each including an optical information emitter at a first wavelength and optical information receiver at a second wavelength, - means for managing the exchanges of informations between said stations, said managing means including several optical means for receiving first wavelength informations emitted from said emitters of said stations respectively, and a single optical means for emitting second wavelength informations to all said receivers of said stations, - several optical bidirectional distributed lines each assigned to a respective station and to a receiving means of said managing means, and - several pairs of optical filtering means, one of said optical filtering means of each pair being interconnected to said emitter and receiver of one respective station and to one end of the respective optical line and the other optical filtering means of said pair being interconnected to the other end of said respective optical line and to said respective receiving means and said single emitting means of said managing means.

Claim 18

11 - A digital information transmitting system comprising : - stations each including an optical information emitter at a first wavelength and optical information receiver at a second wavelength, - means for managing the exchanges of informations between said stations, said managing means including several optical means for receiving first wavelength informations emitted from said emitters of said stations respectively, and a single optical means for emitting second wavelength informations to all said receivers of said stations, - several optical bidirectional distributed lines each assigned to a respective station and to a receiving means of said managing means, and - several pairs of optical filtering means, one of said optical filtering means of each pair being interconnected to said emitter and receiver of one respective station and to one end of the respective optical line and the other optical filtering means of said pair being interconnected to the other end of said respective optical line and to said respective receiving means and said single emitting means of said managing means.