Patents by Inventor Peter J. Voltz
Peter J. Voltz 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: 11258542Abstract: A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.Type: GrantFiled: February 10, 2020Date of Patent: February 22, 2022Assignee: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Robert Lind Olesen, Eldad M. Zeira, Peter J. Voltz, Yongwen E. Yang, Qingyuan Dai, Chang-Soo Koo, I-Tai Lu, KunJu Tsai
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Publication number: 20200177312Abstract: A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.Type: ApplicationFiled: February 10, 2020Publication date: June 4, 2020Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Robert Lind Olesen, Eldad M. Zeira, Peter J. Voltz, Yongwen E. Yang, Qingyuan Dai, Chang-Soo Koo, I-Tai Lu, KunJu Tsai
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Patent number: 10560223Abstract: A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.Type: GrantFiled: May 7, 2018Date of Patent: February 11, 2020Assignee: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Robert L. Olesen, Eldad M. Zeira, Peter J. Voltz, Yongwen E. Yang, Qingyuan Dai, Chang-Soo Koo, I-Tai Lu, KunJu Tsai
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Publication number: 20180254856Abstract: A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.Type: ApplicationFiled: May 7, 2018Publication date: September 6, 2018Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Robert L. Olesen, Eldad M. Zeira, Peter J. Voltz, Yongwen E. Yang, Qingyuan Dai, Chang-Soo Koo, I-Tai Lu, KunJu Tsai
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Patent number: 9991992Abstract: A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.Type: GrantFiled: February 16, 2017Date of Patent: June 5, 2018Assignee: InterDigital Technology CorporationInventors: Robert L. Olesen, Eldad M. Zeira, Peter J. Voltz, Yongwen E. Yang, Qingyuan Dai, Chang-Soo Koo, I-Tai Lu, KunJu Tsai
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Publication number: 20170163383Abstract: A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.Type: ApplicationFiled: February 16, 2017Publication date: June 8, 2017Applicant: InterDigital Technology CorporationInventors: Robert L. Olesen, Eldad M. Zeira, Peter J. Voltz, Yongwen E. Yang, Qingyuan Dai, Chang-Soo Koo, I-Tai Lu, KunJu Tsai
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Patent number: 9621251Abstract: A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.Type: GrantFiled: January 19, 2015Date of Patent: April 11, 2017Assignee: InterDigital Technology CorporationInventors: Robert L. Olesen, Eldad M. Zeira, Peter J. Voltz, Yongwen E. Yang, Qingyuan Dai, Chang-Soo Koo, I-Tai Lu, KunJu Tsai
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Publication number: 20150139143Abstract: A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.Type: ApplicationFiled: January 19, 2015Publication date: May 21, 2015Applicant: InterDigital Technology CorporationInventors: Robert L. Olesen, Eldad M. Zeira, Peter J. Voltz, Yongwen E. Yang, Qingyuan Dai, Changsoo Koo, I-Tai Lu, KunJu Tsai
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Patent number: 8971442Abstract: A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.Type: GrantFiled: October 15, 2012Date of Patent: March 3, 2015Assignee: InterDigital Technology CorporationInventors: Robert Lind Olesen, Eldad M. Zeira, Peter J. Voltz, Yongwen E. Yang, Quingyuan Dai, Chang-Soo Koo, I-Tai Lu, KunJu Tsai
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Patent number: 8295401Abstract: A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.Type: GrantFiled: January 10, 2007Date of Patent: October 23, 2012Assignee: InterDigital Technology CorporationInventors: Robert Lind Olesen, Eldad M. Zeira, Peter J. Voltz, Yongwen E. Yang, Qingyuan Dai, Chang-Soo Koo, I-Tai Lu, KunJu Tsai
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Patent number: 8019036Abstract: In an orthogonal frequency division multiplexed (OFDM) multiple-in multiple-out (MIMO) wireless communication system, a method for correcting sampler clock frequency offset in a receiver comprises acquiring the frequency offset and symbol timing in a received signal by the receiver. The estimated value of a fractional offset is computed, and a correction in the frequency domain based upon the estimated value of the fractional offset is performed.Type: GrantFiled: March 2, 2007Date of Patent: September 13, 2011Assignee: InterDigital Technology CorporationInventors: Peter J. Voltz, Robert Lind Olesen, I-Tai Lu, Chang-Soo Koo, Qingyuan Dai, Yongwen E. Yang, Hui-Yuan Teng
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Publication number: 20110211474Abstract: A method and apparatus for calibration and channel state feedback to support transmit beamforming in a multiple-input multiple-output (MIMO) system are disclosed. For radio frequency (RF) calibration, a first station (STA) sends a calibration request to a second STA, and the second STA sends a sounding packet to the first STA. The first STA receives the sounding packet, performs at least one channel measurement and performs calibration based on the channel measurement. For channel state feedback, the first STA sends a channel state feedback request to the second STA. The second STA sends a sounding packet to the first STA. The first STA receives the sounding packet and performs at least one channel measurement with the sounding packet. The first STA then calculates a steering matrix for transmit beamforming based on the channel measurement.Type: ApplicationFiled: March 25, 2011Publication date: September 1, 2011Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Chang-Soo Koo, Arty Chandra, Peter J. Voltz, Chia-Pang Yen, Jin Wang, Robert Lind Olesen
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Patent number: 7920533Abstract: A method and apparatus for calibration and channel state feedback to support transmit beamforming in a multiple-input multiple-output (MIMO) system are disclosed. For radio frequency (RF) calibration, a first station (STA) sends a calibration request to a second STA, and the second STA sends a sounding packet to the first STA. The first STA receives the sounding packet, performs at least one channel measurement and performs calibration based on the channel measurement. For channel state feedback, the first STA sends a channel state feedback request to the second STA. The second STA sends a sounding packet to the first STA. The first STA receives the sounding packet and performs at least one channel measurement with the sounding packet. The first STA then calculates a steering matrix for transmit beamforming based on the channel measurement.Type: GrantFiled: March 1, 2007Date of Patent: April 5, 2011Assignee: InterDigital Technology CorporationInventors: Chang-Soo Koo, Jin Wang, Robert Lind Olesen, Arty Chandra, Peter J. Voltz, Chia-Pang Yen
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Patent number: 7773681Abstract: In a wireless communication system, a method and apparatus for noise estimation of a received OFDM communication signal, wherein the signal comprises a data frame with a preamble having at least one long training field (LTF) containing two substantially similar OFDM symbols, comprise examining the LTF for substantially similar OFDM symbols. The noise power in the signal is estimated and the received signal power is measured. The signal to noise ratio is calculated and the signal power is determined by subtracting the noise power from the signal noise.Type: GrantFiled: August 1, 2006Date of Patent: August 10, 2010Assignee: InterDigital Technology CorporationInventors: Chang-Soo Koo, Peter J. Voltz, I-Tai Lu, Qingyuan Dai, Robert L. Olesen