Patents by Inventor Yair Darshan
Yair Darshan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20070206749Abstract: A system for location identification in a local area network comprising: a current limited voltage source; a telecommunications outlet; communication cabling connecting the current limited voltage source to the telecommunications outlet; and a location identifier associated with the telecommunications outlet, the location identifier being responsive to a pre-determined voltage level from the current limited voltage source to transmit a multi-bit location data. In one embodiment the multi-bit location data is received at the power sourcing equipment and in another embodiment the multi-bit location data is received at a data terminal equipment connected to the telecommunications outlet.Type: ApplicationFiled: February 19, 2007Publication date: September 6, 2007Applicant: POWERDSINE, LTD. - MICROSEMI CORPORATIONInventors: David PINCU, Roni BLAUT, Yair DARSHAN
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Publication number: 20070103829Abstract: A method of classification of power requirements in a power over Ethernet system, the method comprising: providing a first classification voltage for a first classification cycle time, the provided first classification voltage being within a classification voltage range defined by a lower classification voltage limit and upper classification voltage limit; measuring a first current flow responsive to the provided first classification voltage; subsequent to the first classification cycle time, providing a voltage outside of the classification voltage range for a classification indexing time; subsequent to the classification indexing time, providing a second classification voltage for a second classification cycle time, the provided second classification voltage being within the classification voltage range; measuring a second current flow responsive to the provided second classification voltage; determining a classification responsive to the measured first current flow and the measured second current flow; andType: ApplicationFiled: November 7, 2006Publication date: May 10, 2007Applicant: POWERDSINE, LTD.Inventors: Yair DARSHAN, Eli OHANA
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Publication number: 20070085675Abstract: A method for communicating settable priority data from a powered device being powered over communication cabling to power sourcing equipment, the method comprising: prior to connecting power to operational circuitry of the powered device, transmitting first multi-bit data from the powered device to the power sourcing equipment; subsequent to the transmitted first multi-bit data, connecting power received over the communication cabling to the powered device operational circuitry; receiving information from the powered device operational circuitry; disconnecting the received power from the powered device operational circuitry; and subsequent to the disconnecting, and prior to reconnecting power to the operational circuitry, transmitting second multi-bit data from the powered device to the power sourcing equipment, the second multi-bit data being a function of the received information, at least one of the first multi-bit data and the second multi-bit data being a function of a settable priority.Type: ApplicationFiled: November 28, 2006Publication date: April 19, 2007Applicant: POWERDSINE, LTD.Inventors: Yair DARSHAN, Alon FERENTZ, Dan ADMON, Yossi SHANAVA, Roni BLAUT, Poldi RIMBOIM, Ezra KOPER
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Patent number: 7170194Abstract: A system for supplying additional power to a module having an internal power supply, the system comprising: a module having an associated power supply, the power supply not being designed to accommodate power sharing; at least one load associated with the module, the load receiving power from the power supply; a variable current limited power source connected to the module supplying additional power to the at least one load; and a controller; whereby the variable current limited power supply is responsive to an output of the controller to vary the current limit of the variable current limited power supply.Type: GrantFiled: January 26, 2004Date of Patent: January 30, 2007Assignee: PowerDsine, Ltd.Inventors: Dror Korcharz, Yair Darshan, Ilan Atias, David Pincu
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Patent number: 7145439Abstract: A method for communicating multi-bit data from a powered device being powered over communication cabling to power sourcing equipment, the method comprising: exhibiting a signature indicative of a device to be powered over communication cabling; sensing a voltage level indicative of remote powering over communication cabling; prior to connecting power to operational circuitry, transmitting first multi-bit information; subsequently to the transmitting first multi-bit information, connecting power received over the communication cabling to the operational circuitry; receiving information from the operational circuitry; subsequent to receiving the information disconnecting the received power from the operational circuitry; subsequent to the disconnecting, transmitting second multi-bit information associated with the operational circuitry, the second multi-bit information comprising at least one bit being a function of the received information; and re-connecting power received over the communication cabling to theType: GrantFiled: October 12, 2004Date of Patent: December 5, 2006Assignee: PowerDsine, Ltd.Inventors: Yair Darshan, Alon Ferentz, Dan Admon, Yossi Shanava, Roni Blaut, Poldi Rimboim
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Patent number: 7046983Abstract: Apparatus for supplying power to communication devices operating within a Local Area Network (LAN) over LAN cabling, the communication devices including one or more powered devices adapted to receive power over the LAN cabling, the apparatus including a power supply which is adapted to receive power from an unregulated source and to provide therefrom regulated power. The apparatus further includes power distribution and control circuitry, which is adapted to identify the powered devices on the LAN, to receive the regulated power and to generate therefrom respective output voltages for supply to the powered devices. The apparatus is housed in a chassis which retains the power supply and the power distribution and control circuitry as a single module.Type: GrantFiled: December 31, 2002Date of Patent: May 16, 2006Assignee: PowerDsine, Ltd.Inventors: Shimon Elkayam, Ilan Atias, Dror Korcharz, David Pincu, Alon Ferentz, Amir Lehr, Yair Darshan, Nadav Barnea, Yuval Berson
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Publication number: 20060019629Abstract: A redundant powering system for a powered device receiving power over communication cabling, the redundant powering system comprising: a redundant power supply comprising a first power sourcing equipment and a second power sourcing equipment; a powered device; communication cabling connecting the redundant power supply to the powered device, the communication cabling comprising a first path connecting the first power sourcing equipment to the powered device and a second path connecting the second power sourcing equipment to the powered device, the first and second paths at least partially being constituted of a single structured cable, the at least one powered device comprising at least one signature impedance, the redundant power supply being operable so that power is operably supplied to the powered device from only one of the first and second power sourcing equipment.Type: ApplicationFiled: September 6, 2005Publication date: January 26, 2006Inventors: Yuval Berson, Yair Darshan, Dror Korcharz, Raanan Levi, Alon Ferentz, Ilan Atias, David Pincu, Shimon Elkayam, Arkadiy Peker
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Patent number: 6985713Abstract: This invention discloses a data communications network including at least one hub, a plurality of nodes connected via network connections to the hub, a power distribution subsystem operative to provide at least some power to at least some of the plurality of nodes via at least some of the network connections. The power distribution subsystem includes a node identification functionality providing identification of nodes via at least some of the plurality of network connections in order to enable an appropriate supply of power to individual nodes and a power supply responsive to the node identification functionality and supplying power to the at least some of the plurality of nodes via the at least some of the network connections.Type: GrantFiled: July 18, 2002Date of Patent: January 10, 2006Assignee: PowerDsine, Ltd.Inventors: Amir Lehr, Ilan Atias, Dror Korcharz, David Pincu, Alon Ferentz, Yair Darshan, Nadav Barnea
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Patent number: 6986071Abstract: A power supply subsystem for use in a local area network (LAN) includes a direct current (DC) power source, which supplies DC power to at least one of the nodes via at least one of the wire pairs used in communication cabling of the LAN, substantially without interfering with data communications. A signal generator generates a periodic time-varying signal and couples the time-varying signal into the at least one of the wire pairs. A control unit senses a time-varying voltage on the at least one of the wire pairs due to the time-varying signal generated by the signal generator, and responsive to the sensed time-varying voltage, controls the DC power supplied to the at least one of the nodes by the DC power source.Type: GrantFiled: October 24, 2002Date of Patent: January 10, 2006Assignee: PowerDsine, Ltd.Inventors: Yair Darshan, Alon Ferentz, Dror Korcheraz
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Publication number: 20050197094Abstract: A method for determining the classification of a powered device, the method comprising: obtaining a first classification over a first power path; obtaining a second classification over a second power path; comparing the obtained first classification with the obtained second classification; and in the event the obtained first classification is different from the obtained second classification determining a combined classification as a decoded value of the obtained first classification and the obtained second classification.Type: ApplicationFiled: February 10, 2005Publication date: September 8, 2005Inventors: Yair Darshan, Alon Ferentz
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Publication number: 20050122140Abstract: Power sourcing equipment providing a plurality of power sources for connection over communication cabling to a single powered device, the power sourcing equipment comprising: a first power source; a second power source; a control circuit; a current sensor adapted to monitor an output current of the first power source, the current sensor being operatively connected to the control circuit; and a voltage regulating means associated with one of the first power source and the second power source, the voltage regulating means being responsive to the control circuit, the control circuit being operative responsive to the monitored output current to operate the voltage regulating means so as to maintain the monitored output current within a pre-determined range.Type: ApplicationFiled: January 18, 2005Publication date: June 9, 2005Inventors: Arkadiy Peker, Dror Korcharz, Alon Ferentz, Yair Darshan
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Publication number: 20050086546Abstract: A method for communicating multi-bit data from a powered device being powered over communication cabling to power sourcing equipment, the method comprising: exhibiting a signature indicative of a device to be powered over communication cabling; sensing a voltage level indicative of remote powering over communication cabling; prior to connecting power to operational circuitry, transmitting first multi-bit information; subsequently to the transmitting first multi-bit information, connecting power received over the communication cabling to the operational circuitry; receiving information from the operational circuitry; subsequent to receiving the information disconnecting the received power from the operational circuitry; subsequent to the disconnecting, transmitting second multi-bit information associated with the operational circuitry, the second multi-bit information comprising at least one bit being a function of the received information; and re-connecting power received over the communication cabling to theType: ApplicationFiled: October 12, 2004Publication date: April 21, 2005Inventors: Yair Darshan, Alon Ferentz, Dan Admon, Yossi Shanava, Roni Blaut, Poldi Rimboim
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Publication number: 20050085212Abstract: A combiner for use with a powered device having high power needs, the combiner comprising: a first power input adapted to receive a first power signal over a first set of wire pairs utilized to carry communication data; a second power input adapted to receive a second power signal over a second set of wire pairs, wherein the first power signal is combined with the second power signal to produce a combined high power signal; and a control circuit operable to sense the combined high power signal and to supply the combined high power signal to a powered device in response to the sensed combined high power signal. Also disclosed is a local area network adapted to supply power to powered devices over a plurality of paths utilizing the combiner, the local area network thus supplying high power to a powered device.Type: ApplicationFiled: January 22, 2004Publication date: April 21, 2005Inventors: Arkadiy Peker, Dror Korcharz, Alon Ferentz, Yair Darshan
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Publication number: 20040260794Abstract: A method and apparatus for preventing harmful transients resulting from a probing routine for a valid powered device detection signature in a network, the method comprising: operating power sourcing equipment to provide via its output port a pre-detection output voltage; obtaining an indication of the pre-detection output voltage; comparing the indication of the pre-detection output voltage with a pre-determined value; and in the event that the indication of the pre-detection output voltage is less than the pre-determined value; initiating a probing routine for a valid powered device detection signature. The higher voltage of the probing routine is thus not present at the output port in the absence of pre-detection of a potentially valid powered device detection signature.Type: ApplicationFiled: June 7, 2004Publication date: December 23, 2004Inventors: Alon Ferentz, Yair Darshan, Dror Korcharz
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Publication number: 20040201931Abstract: A system for supplying additional power to a module having an internal power supply, the system comprising: a module having an associated power supply, the power supply not being designed to accommodate power sharing; at least one load associated with the module, the load receiving power from the power supply; a variable current limited power source connected to the module supplying additional power to the at least one load; and a controller; whereby the variable current limited power supply is responsive to an output of the controller to vary the current limit of the variable current limited power supply.Type: ApplicationFiled: January 26, 2004Publication date: October 14, 2004Inventors: Dror Korcharz, Yair Darshan, Ilan Atias, David Pincu
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Patent number: 6650554Abstract: Power supply apparatus includes a power factor corrector (PFC) unit, which is adapted to receive an AC voltage from an AC source, and to smooth the AC voltage while adjusting a waveform of an AC input current from the AC source relative to the AC voltage so as to generate a PFC output voltage made up of a DC component with a residual AC ripple. A regulator is coupled to receive an indication of a ripple amplitude and a ripple phase of the residual AC ripple and to generate, responsive thereto, a correction voltage which is combined with the PFC voltage to generate a DC output voltage in which the AC ripple is substantially reduced relative to the PFC voltage.Type: GrantFiled: May 17, 2002Date of Patent: November 18, 2003Assignee: Powersine Ltd.Inventor: Yair Darshan
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Publication number: 20030146765Abstract: A power supply subsystem for use in a local area network (LAN) includes a direct current (DC) power source, which supplies DC power to at least one of the nodes via at least one of the wire pairs used in communication cabling of the LAN, substantially without interfering with data communications. A signal generator generates a periodic time-varying signal and couples the time-varying signal into the at least one of the wire pairs. A control unit senses a time-varying voltage on the at least one of the wire pairs due to the time-varying signal generated by the signal generator, and responsive to the sensed time-varying voltage, controls the DC power supplied to the at least one of the nodes by the DC power source.Type: ApplicationFiled: October 24, 2002Publication date: August 7, 2003Applicant: POWERDSINE LTD.Inventors: Yair Darshan, Alon Ferentz, Dror Korcheraz
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Publication number: 20030099076Abstract: Apparatus for supplying power to communication devices operating within a Local Area Network (LAN) over LAN cabling, the communication devices including one or more powered devices adapted to receive power over the LAN cabling, the apparatus including a power supply which is adapted to receive power from an unregulated source and to provide therefrom regulated power. The apparatus further includes power distribution and control circuitry, which is adapted to identify the powered devices on the LAN, to receive the regulated power and to generate therefrom respective output voltages for supply to the powered devices. The apparatus is housed in a chassis which retains the power supply and the power distribution and control circuitry as a single module.Type: ApplicationFiled: December 31, 2002Publication date: May 29, 2003Inventors: Shimon Elkayam, Ilan Atias, Dror Korcharz, David Pincu, Alon Ferentz, Amir Lehr, Yair Darshan, Nadav Barnea, Yuval Berson
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Publication number: 20030036819Abstract: This invention discloses a data communications network including at least one hub, a plurality of nodes connected via network connections to the hub, a power distribution subsystem operative to provide at least some power to at least some of the plurality of nodes via at least some of the network connections. The power distribution subsystem includes a node identification functionality providing identification of nodes via at least some of the plurality of network connections in order to enable an appropriate supply of power to individual nodes and a power supply responsive to the node identification functionality and supplying power to the at least some of the plurality of nodes via the at least some of the network connections.Type: ApplicationFiled: July 18, 2002Publication date: February 20, 2003Inventors: Amir Lehr, Ilan Atias, Dror Korcharz, David Pincu, Alon Ferentz, Yair Darshan, Nadav Barnea
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Publication number: 20020190696Abstract: Power supply apparatus includes a power factor corrector (PFC) unit, which is adapted to receive an AC voltage from an AC source, and to smooth the AC voltage while adjusting a waveform of an AC input current from the AC source relative to the AC voltage so as to generate a PFC output voltage made up of a DC component with a residual AC ripple. A regulator is coupled to receive an indication of a ripple amplitude and a ripple phase of the residual AC ripple and to generate, responsive thereto, a correction voltage which is combined with the PFC voltage to generate a DC output voltage in which the AC ripple is substantially reduced relative to the PFC voltage.Type: ApplicationFiled: May 17, 2002Publication date: December 19, 2002Inventor: Yair Darshan