Patents by Inventor Beat Weiss
Beat Weiss 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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Patent number: 10050362Abstract: An electronic circuit card comprises a printed circuit board with electronic components. The electronic components comprise drivers for transmitting transmit (TX) signals and receivers for receiving receive (RX) signals, according to several groups of interface signals. There is further provided a connector edge, arranged at an edge of the card, and configured to allow the card to be connected to an external connector. This connector edge comprises two subsets of symmetric pins on respective (opposite) sides thereof. The drivers and the receivers are connected to the pins, for respectively conveying the TX signals and the RX signals. Pins are assigned such that, for each of the several groups of supported interface signals, any pin (of any of the subsets) connected to transmit TX signals is located opposite a pin (of the other subset) connected to receive RX signals. Pairs of consecutive pins (on each side) typically come in differential pairs.Type: GrantFiled: March 3, 2016Date of Patent: August 14, 2018Assignee: International Business Machines CorporationInventors: Francois Abel, Andreas Doering, Ronald P. Luijten, Mauro Spreafico, Beat Weiss
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Publication number: 20170256874Abstract: An electronic circuit card comprises a printed circuit board (PCB) with electronic components thereon. The electronic components comprise drivers for transmitting TX signals and receivers for receiving RX signals, according to several groups of interface signals. There is further provided a connector edge, arranged at an edge of the card, and configured to allow the card to be connected to an external connector. This connector edge comprises two subsets of symmetric pins on respective (opposite) sides thereof. The drivers and the receivers are connected to the pins, for respectively conveying the TX signals and the RX signals. Pins are assigned such that, for each of the several groups of supported interface signals, any pin (of any of the subsets) connected to transmit TX signals is located opposite a pin (of the other subset) connected to receive RX signals. Pairs of consecutive pins (on each side) typically come in differential pairs.Type: ApplicationFiled: March 3, 2016Publication date: September 7, 2017Inventors: Francois Abel, Andreas Doering, Ronald P. Luijten, Mauro Spreafico, Beat Weiss
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Patent number: 8477787Abstract: A data network includes a plurality of source nodes, at least one sink node, and at least one intermediate node, wherein routing of a reverse message from the sink node to a source node via at least one intermediate node is performed by the intermediate node using reverse path routing information data comprising a combination of source routing information data and transparent bridging information data, wherein the reverse path routing information data is constructed during propagation of a forward message from the source node to the sink node via the intermediate node.Type: GrantFiled: November 30, 2010Date of Patent: July 2, 2013Assignee: International Business Machines CorporationInventors: Urs Hunkeler, Hong Linh Truong, Beat Weiss
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Patent number: 8086248Abstract: Packets are periodically transmitted by a plurality of radio beacons deployed at known positions over a location estimation area. Monitoring is conducted for incoming packets. Upon receipt of a packet from a kth one of the beacons, received signal strength, RSSI, is measured at each of the antenna outputs, the packet is decoded to obtain the unique identifier and the unique sequence number, and the received signal strength at each of the antenna outputs is spatially averaged. The measuring, decoding, and spatial averaging are repeated for additional packets from the kth one of the beacons during a pre-defined time window T. The plurality of spatially averaged received signal strengths are temporally averaged over the pre-defined time window T, to obtain a spatially and temporally averaged value of received signal strength. The distance dk from the apparatus to the kth one of the beacons is approximated based on the spatially and temporally averaged value of received signal strength.Type: GrantFiled: May 16, 2008Date of Patent: December 27, 2011Assignee: International Business Machines CorporationInventors: Pedro E. Coronel, Wolfgang H. Schott, Beat Weiss
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Publication number: 20110128962Abstract: A data network includes a plurality of source nodes, at least one sink node, and at least one intermediate node, wherein routing of a reverse message from the sink node to a source node via at least one intermediate node is performed by the intermediate node using reverse path routing information data comprising a combination of source routing information data and transparent bridging information data, wherein the reverse path routing information data is constructed during propagation of a forward message from the source node to the sink node via the intermediate node.Type: ApplicationFiled: November 30, 2010Publication date: June 2, 2011Applicant: International Business Machines CorporationInventors: Urs Hunkeler, Hong Linh Truong, Beat Weiss
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Patent number: 7761233Abstract: An apparatus and method is disclosed for efficiently sensing and tracking objects in an indoor environment by simultaneously measuring the object movement with an inertial navigation system and a reference location positioning system. By combining the measurements obtained with accelerometers, gyroscopes, angle estimators and the reference system using an extended Kalman filter based approach, a position estimate is obtained with high reliability and precision accuracy. Improvement in performance is obtained by the incorporation of dynamic mode switching and forward-backward smoothing in the location position estimator.Type: GrantFiled: June 30, 2006Date of Patent: July 20, 2010Assignee: International Business Machines CorporationInventors: Wolfgang Hans Schott, Simeon Furrer, Beat Weiss
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Publication number: 20090323510Abstract: The invention relates to a method for modulating sub-carrier symbols to an intermediate-frequency OFDM signal having even and odd samples, including following steps: transforming a number N of the sub-carrier symbols to pre-processed sub-carrier symbols; performing a complex inverse discrete Fourier transformation (IDFT) on the pre-processed sub-carrier symbols to generate complex output symbols; and transforming the complex output symbols to the intermediate-frequency OFDM signal, wherein the sub-carrier symbols are transformed so that the even and odd samples of the intermediate-frequency OFDM signal are given by real and imaginary parts of the complex output symbols.Type: ApplicationFiled: November 19, 2004Publication date: December 31, 2009Inventors: Simeon Furrer, Jens Jelitto, Wolfgang Schott, Beat Weiss
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Publication number: 20090286548Abstract: Packets are periodically transmitted by a plurality of radio beacons deployed at known positions over a location estimation area. Monitoring is conducted for incoming packets. Upon receipt of a packet from a kth one of the beacons, received signal strength, RSSI, is measured at each of the antenna outputs, the packet is decoded to obtain the unique identifier and the unique sequence number, and the received signal strength at each of the antenna outputs is spatially averaged. The measuring, decoding, and spatial averaging are repeated for additional packets from the kth one of the beacons during a pre-defined time window T. The plurality of spatially averaged received signal strengths are temporally averaged over the pre-defined time window T, to obtain a spatially and temporally averaged value of received signal strength. The distance dk from the apparatus to the kth one of the beacons is approximated based on the spatially and temporally averaged value of received signal strength.Type: ApplicationFiled: May 16, 2008Publication date: November 19, 2009Applicant: International Business Machines CorporationInventors: Pedro E. Coronel, Wolfgang H. Schott, Beat Weiss
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Patent number: 7356019Abstract: The invention relates to a conversion of a pulse modulated signal to a radio frequency signal enabling use of applications and protocols designed for wireless optical links on radio frequency channels. The method comprises receiving the pulse modulated input signal, decoding the received pulse modulated input signal into a decoded data bit-stream, encoding the decoded data bit-stream into a recoded data bit-stream, under use of the recoded data bit-stream modulating a radio frequency signal, and transmitting the modulated radio frequency signal. In the receiver path a received radio frequency signal is converted to a pulse modulated output signal by the steps of demodulating the received radio frequency signal into a demodulated data bit-stream, decoding the demodulated data bit-stream into a received data bit-stream, encoding the received data bit-stream into a pulse modulated output signal, and forwarding the pulse modulated output signal.Type: GrantFiled: March 8, 2004Date of Patent: April 8, 2008Assignee: International Business Machines CorporationInventors: Walter Hirt, Fritz Gfeller, Beat Weiss
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Patent number: 7349462Abstract: The present invention discloses a method and apparatus for adjusting gain setting, receiver clock frequency, and symbol timing in an OFDM radio receiver. The method is based on the reception of a preamble with known periodic training sequences transmitted prior to user data over the radio channel. By computing a periodicity metric, an inner receiver detects the presence of periodic signals in the received data sequence, provides means to set the Variable Gain Amplifier VGA gain in the radio frontend, and estimates frequency offsets between the transmit and receive clock. Matched filters are used to determine the symbol timing. A finite-state-machine schedules various tasks during the receiver startup.Type: GrantFiled: December 17, 2003Date of Patent: March 25, 2008Assignee: International Business Machines CorporationInventors: Wolfgang Schott, Pedro E. Coronel, Simeon Furrer, Jens Jelitto, Beat Weiss, Dietrich Maiwald
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Publication number: 20080004796Abstract: An apparatus and method is disclosed for efficiently sensing and tracking objects in an indoor environment by simultaneously measuring the object movement with an inertial navigation system and a reference location positioning system. By combining the measurements obtained with accelerometers, gyroscopes, angle estimators and the reference system using an extended Kalman filter based approach, a position estimate is obtained with high reliability and precision accuracy. Improvement in performance is obtained by the incorporation of dynamic mode switching and forward-backward smoothing in the location position estimator.Type: ApplicationFiled: June 30, 2006Publication date: January 3, 2008Inventors: Wolfgang Hans Schott, Simeon Furrer, Beat Weiss
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Publication number: 20060164271Abstract: The invention relates to a conversion of a pulse modulated signal to a radio frequency signal enableing use of applications and protocols designed for wireless optical links on radio frequency channels. The method comprises receiving the pulse modulated input signal, decoding the received pulse modulated input signal into a decoded data bit-stream, encoding the decoded data bit-stream into a recoded data bit-stream, under use of the recoded data bit-stream modulating a radio frequency signal, and transmitting the modulated radio frequency signal. In the receiver path a received radio frequency signal is converted to a pulse modulated output signal by the steps of demodulating the received radio frequency signal into a demodulated data bit-stream, decoding the demodulated data bit-stream into a received data bit-stream, encoding the received data bit-stream into a pulse modulated output signal, and forwarding the pulse modulated output signal.Type: ApplicationFiled: March 8, 2004Publication date: July 27, 2006Inventors: Walter Hirt, Fritz Gfeller, Beat Weiss
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Publication number: 20040161046Abstract: The present invention discloses a method and apparatus for adjusting gain setting, receiver clock frequency, and symbol timing in an OFDM radio receiver. The method is based on the reception of a preamble with known periodic training sequences transmitted prior to user data over the radio channel. By computing a periodicity metric, an inner receiver detects the presence of periodic signals in the received data sequence, provides means to set the Variable Gain Amplifier VGA gain in the radio frontend, and estimates frequency offsets between the transmit and receive clock. Matched filters are used to determine the symbol timing. A finite-state-machine schedules various tasks during the receiver startup.Type: ApplicationFiled: December 17, 2003Publication date: August 19, 2004Applicant: International Business Machines CorporationInventors: Wolfgang Schott, Pedro E. Coronel, Simeon Furrer, Jens Jelitto, Beat Weiss, Dietrich Maiwald
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Patent number: 6424442Abstract: Disclosed are optical transmitter and transceiver modules for data communication. Such a transceiver module comprises an array of light emitting diodes mounted on a mounting base (140) being arranged in a regular and symmetrical manner in a dome-shaped housing (142). This housing (142) comprises diffusor means for source enlargement. In addition to the transmitter part consisting of said diodes, the transceiver module comprises a receiver. The receiver has four photodiodes (143) arranged below the mounting base (140). These photodiodes are tilted and face in different directions to receive light from all around the module. The photodiodes are protected by a thin wire mesh (145) which serves as Faraday cage to reduce electro magnetic interference. A substrate (144) for electronic circuitry in SMD-Technology is situated underneath the photodiodes (143).Type: GrantFiled: February 25, 1997Date of Patent: July 23, 2002Assignee: International Business Machines CorporationInventors: Fritz Gfeller, Heinz Richard, Beat Weiss