# US 9,520,832 B2 · Device for connecting two pieces of equipment via an Ethernet link, and a docking station for such a piece of equipment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,520,832 B2 - Document ID: US9520832B2 - Status: Granted - Kind: B2 - Application number: 14/370,297 - Filed: 2013-01-09 - Published: 2015-01-01 - Granted: 2016-12-13 - Earliest claimed: 2012-01-09 - Assignees: Sagem Defense Securite - Applicants: Sagem Defense Securite - Inventors: Christian Haury; Francois Guillot; Jean-Marie Courteille - Web page: https://patentgrep.com/patent/US9520832B2 ## CPC - H03C 7/00: Modulating electromagnetic waves (devices or arrangements for the modulation of light G02F1/00) - G06F 13/14: Handling requests for interconnection or transfer - H02J 3/00: Circuit arrangements for AC mains or AC distribution networks - H02J 3/36: Arrangements for transfer of electric power between AC networks via high-voltage DC [HVDC] links; Arrangements for transfer of electric power between generators and networks via HVDC links - H04L 12/10: Current supply arrangements - H04L 27/20: Modulator circuits; Transmitter circuits - H04L 45/66: {Layer 2 routing, e.g. in Ethernet based MAN's} - H03C: MODULATION (masers or lasers H01S; coding, decoding or code conversion H03M) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A connection device for connecting a first piece of electronic equipment to a second piece of electronic equipment, the device comprising two Ethernet type interfaces that are linked together by an up line and a down line and that are arranged for each of them to be linked to a respective one of the pieces of equipment and to transmit data in differential mode, two power supply modules, each associated with a respective one of the pieces of equipment and wired in common mode between the up and down lines in order to transmit a power supply carrier signal in alternating current, and two secondary transmission modules, each associated with a respective one of the power supply modules and arranged to enable data to be transmitted by modulating the power supply carrier signal. ## Claims ### Claim 1 A connection device for connecting first electronic equipment to second electronic equipment, the device comprising first and second Ethernet type interfaces that are linked together by an up line and a down line and that are arranged for each of them to be linked to a respective one of the first and second electronic equipment and to transmit data in differential mode, first and second power supply modules, each associated with a respective one of the first and second electronic equipment and wired in common mode between the up and down lines in order to transmit a power supply carrier signal in alternating current, and first and second secondary transmission modules, each associated with a respective one of the first and second power supply modules and arranged to enable data to be transmitted by modulating the power supply carrier signal in accordance with a data stream, wherein the second Ethernet type interface is linked to the up and down lines via a first transformer, the second power supply module receives power from a primary of the first transformer via a second transformer, and the second secondary transmission module receives power from a primary of the second transformer and is separately connected to the second power supply module to control the second power supply module for transmitting the power supply carrier signal. ### Claim 2 (depends on 1) The device according to claim 1, wherein the first secondary transmission module of the first electronic equipment is arranged to perform modulation by phase shift keying. ### Claim 3 (depends on 1) The device according to claim 1, wherein the second secondary transmission module of the second electronic equipment is arranged to transmit data by modulating current consumption. ### Claim 4 (depends on 3) A device according to claim 3, wherein the modulation of current consumption is synchronized with an up data stream for coding data as a function of the time positions of peaks in the consumed current. ### Claim 5 (depends on 1) The device according to claim 1, wherein the transmission modules are arranged to provide bidirectional transmission simultaneously. ### Claim 6 (depends on 1) The device according to claim 1, wherein the transmission modules are arranged to provide bidirectional transmission in alternation. ### Claim 7 A method for transmitting data between a first electronic equipment and a second electronic equipment connected together by a connection device comprising first and second Ethernet type interfaces that are linked together by an up line and a down line linked to a respective one of the first and second electronic equipment, first and second power supply modules, each associated with a respective one of the first and second electronic equipment and wired in common mode between the up and down lines in order to transmit a power supply carrier signal in alternating current, and first and second secondary transmission modules, each associated with a respective one of the first and second power supply modules, wherein the second Ethernet type interface is linked to the up and down lines via a first transformer, the second power apply module receives power from a primary of the first transformer via a second transformer, and the second secondary transmission module receives power from a primary of the second transformer and is separately connected to the second power supply module, said method comprising a step of transmitting data in differential mode through the up line and the down line, a step of generating the power supply carrier signal by controlling the second power supply module by the second secondary transmission module, and a step of transmitting data by modulating the power supply carrier signal in accordance with a data stream, wherein the second secondary transmission module controls the second power supply module. ### Claim 8 (depends on 7) The method according to claim 7, wherein: the first secondary transmission modules transforms data into a biphase stream modulating the voltage of the power supply carrier signal correspondingly, and the second secondary transmission modules synchronizes itself on the biphase stream and transforms said stream in order to recover the transmitted data. ### Claim 9 (depends on 8) The method according to claim 8, wherein: to transmit data, the second secondary transmission module modulates a consumed current in the second piece of equipment, with modulation of the consumed current being synchronized with an up data stream to code data as a function of time positions of peaks consumed current, to receive the data, the first secondary transmission module detects the current consumption peaks, and on the basis of the detected current and after sampling, a mean value of the consumed current is calculated for revealing consumption peaks by a differentiator in time windows or cells in which the peaks are positioned in order to deduce the data therefrom. ### Claim 10 (depends on 9) The method according to claim 9, wherein the second secondary transmission module uses a data reception clock sent by the first secondary transmission module in order to synchronize a transmit clock by a phase locked loop serving to create a consumption command on the transmitted stream in such a way the consumption command leads to jumps or peaks of consumption at time positions within cell corresponding to data. ### Claim 11 (depends on 1) The method according to claim 1, wherein: the first secondary transmission modules transforms data into a biphase stream modulating the voltage of the power supply carrier signal correspondingly, and the second secondary transmission modules synchronizes itself on the biphase stream and transforms said stream in order to recover the transmitted data. ### Claim 12 (depends on 11) The method according to claim 11, wherein: to transmit data, the second secondary transmission module modulates a consumed current in the second piece of equipment, with modulation of the consumed current being synchronized with an up data stream to code data as a function of time positions of peaks consumed current, to receive the data, the first secondary transmission module detects the current consumption peaks, and on the basis of the detected current and after sampling, a mean value of the consumed current is calculated for revealing consumption peaks by a differentiator in time windows or cells in which the peaks are positioned in order to deduce the data therefrom. ### Claim 13 (depends on 12) The method according to claim 12, wherein the second secondary transmission module uses a data reception clock sent by the first secondary transmission module in order to synchronize a transmit clock by a phase locked loop serving to create a consumption command on the transmitted stream in such a way the consumption command leads to jumps or peaks of consumption at time positions within cell corresponding to data.