Patents Assigned to Iptronics A/S
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Patent number: 8450676Abstract: An optical receiver suitable for connecting to a photodiode generating a photocurrent with a sensing resistor and a diode circuit in parallel with the sensing resistor to limit the voltage across the sensing resistor. The diode circuit allows for a larger resistor providing greater sensitivity without risking violating the necessary headroom available to the photodiode.Type: GrantFiled: December 12, 2009Date of Patent: May 28, 2013Assignee: Iptronics A/SInventor: Kenn Christensen
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Publication number: 20130016965Abstract: A method for an optical transmitter, receiver or transceiver allowing determination of a signal property of a first binary signal such as the modulation amplitude. The method applies a reference stage which is modulated by the signal content of the first binary signal to allow the determination.Type: ApplicationFiled: July 12, 2012Publication date: January 17, 2013Applicant: IPTRONICS A/SInventor: Steen Bak CHRISTENSEN
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Publication number: 20120328235Abstract: The present invention relates to a flexible method of provide chips for optical interconnect with different number of channels.Type: ApplicationFiled: April 30, 2012Publication date: December 27, 2012Applicant: IPTRONICS A/SInventors: Steen Bak Christensen, Thorkild Franck
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Patent number: 8228962Abstract: The invention relates to an integrated driver circuit suitable for driving a light emitter with a signal current I(time) based on a received signal said circuit comprising a differential pair of transistors having a first transistor and a second transistor each respectively forming part of a first branch and a second branch, said first branch comprises a node suitable for connecting to said light emitter and/or said first branch comprises said light emitter, wherein said second branch comprise at least one charge storage device. This charge storage device may be arranged to collect current otherwise wasted in the process of driving the light emitter. This current may be utilized to drive circuitry thereby reduce current consumption.Type: GrantFiled: November 2, 2009Date of Patent: July 24, 2012Assignee: IPtronics A/SInventors: Anders S. Mortensen, Ulrich Keil
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Publication number: 20120027400Abstract: The invention relates to a method and an optical receiver implementing this method suitable for robustly receiving unencoded optical data. The method set the threshold for the receiver using values relating to the high and low values of a binary signal. However, for some data patterns these values may not be accurately determined, such as for extended periods of constant high or low values being transmitted. In this case the method, in one embodiment, assumes that the extinction ratio of the signal is substantially constant and is thereby able to track the threshold for the signal.Type: ApplicationFiled: June 2, 2011Publication date: February 2, 2012Applicant: IPtronics A/SInventor: Steen Bak CHRISTENSEN
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Patent number: 8018286Abstract: The present invention relates to an integrated electrical circuit in particular a receiver or driver suitable for broadband communication, such as optical interconnect. The circuit comprises two amplifiers which share current supply wherein the integrated circuit is arranged so that cross talk via this current supply is avoided over a large range of frequencies.Type: GrantFiled: February 12, 2010Date of Patent: September 13, 2011Assignee: Iptronics A/SInventor: Kenn Christensen
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Publication number: 20110020006Abstract: An optical link for communicating a payload data stream between a near end transceiver and a far end transceiver via an optical communication channel, the near end transceiver including a near end receiver (near-Rx) and a near end transmitter (near-Tx) and the far end transceiver including a far end receiver (far-Rx) and a far end transmitter (far-Tx), wherein the far-TX is adapted to transmit a link data stream to the near-RX beside the payload data stream from the far end to the near end.Type: ApplicationFiled: July 27, 2010Publication date: January 27, 2011Applicant: IPtronics A/SInventor: Steen Bak Christensen
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Publication number: 20100214019Abstract: The present invention relates to an integrated electrical circuit in particular a receiver or driver suitable for broadband communication, such as optical interconnect. The circuit comprises two amplifiers which share current supply wherein the integrated circuit is arranged so that cross talk via this current supply is avoided over a large range of frequencies.Type: ApplicationFiled: February 12, 2010Publication date: August 26, 2010Applicant: IPtronics A/SInventor: Kenn CHRISTENSEN
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Publication number: 20100188013Abstract: The invention relates to an integrated driver circuit suitable for driving a light emitter with a signal current I(time) based on a received signal said circuit comprising a differential pair of transistors having a first transistor and a second transistor each respectively forming part of a first branch and a second branch, said first branch comprises a node suitable for connecting to said light emitter and/or said first branch comprises said light emitter, wherein said second branch comprise at least one charge storage device. This charge storage device may be arranged to collect current otherwise wasted in the process of driving the light emitter. This current may be utilized to drive circuitry thereby reduce current consumption.Type: ApplicationFiled: November 2, 2009Publication date: July 29, 2010Applicant: IPtronics A/SInventors: Anders S. MORTENSEN, Ulrich Keil