Patents by Inventor Louis C. Yun
Louis C. Yun 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: 20170264338Abstract: The present invention relates to a communication system and methods of use thereof. The system includes sets of complementary radios for transmitting and receiving signals to achieve high reliability and reduced costs. The sets of complementary radios are in wireless communication with each other. A new connection is made by selecting from amongst the complementary radios. Switching between complementary radios during a connection is also permitted. Optimized protocols and hardware for implementing the system are disclosed.Type: ApplicationFiled: January 23, 2017Publication date: September 14, 2017Inventors: Louis C. Yun, Ali Niknejad, Venkateswara Rao Sattiraju, James C. Beck, Surendar Magar
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Patent number: 9595996Abstract: The present invention relates to a communication system and methods of use thereof. The system includes sets of complementary radios for transmitting and receiving signals to achieve high reliability and reduced costs. The sets of complementary radios are in wireless communication with each other. A new connection is made by selecting from amongst the complementary radios. Switching between complementary radios during a connection is also permitted. Optimized protocols and hardware for implementing the system are disclosed.Type: GrantFiled: January 27, 2016Date of Patent: March 14, 2017Assignee: HMICRO, INC.Inventors: Louis C. Yun, Ali Niknejad, Venkateswara Rao Sattiraju, James C. Beck, Surendar Magar
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Publication number: 20160373161Abstract: The present invention relates to a communication system and methods of use thereof. The system includes sets of complementary radios for transmitting and receiving signals to achieve high reliability and reduced costs. The sets of complementary radios are in wireless communication with each other. A new connection is made by selecting from amongst the complementary radios. Switching between complementary radios during a connection is also permitted. Optimized protocols and hardware for implementing the system are disclosed.Type: ApplicationFiled: January 27, 2016Publication date: December 22, 2016Inventors: Louis C. Yun, Ali Niknejad, Venkateswara Rao Sattiraju, James C. Beck, Surendar Magar
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Patent number: 9277534Abstract: The present invention relates to a communication system and methods of use thereof. The system includes sets of complementary radios for transmitting and receiving signals to achieve high reliability and reduced costs. The sets of complementary radios are in wireless communication with each other. A new connection is made by selecting from amongst the complementary radios. Switching between complementary radios during a connection is also permitted. Optimized protocols and hardware for implementing the system are disclosed.Type: GrantFiled: November 3, 2014Date of Patent: March 1, 2016Assignee: HMICRO, INC.Inventors: Louis C. Yun, Ali Niknejad, Venkateswara Rao Sattiraju, James C. Beck, Surendar Magar
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Publication number: 20150156749Abstract: The present invention relates to a communication system and methods of use thereof. The system includes sets of complementary radios for transmitting and receiving signals to achieve high reliability and reduced costs. The sets of complementary radios are in wireless communication with each other. A new connection is made by selecting from amongst the complementary radios. Switching between complementary radios during a connection is also permitted. Optimized protocols and hardware for implementing the system are disclosed.Type: ApplicationFiled: November 3, 2014Publication date: June 4, 2015Inventors: Louis C. Yun, Ali Niknejad, Venkateswara Rao Sattiraju, James C. Beck, Surendar Magar
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Publication number: 20150073231Abstract: A sensor system in accordance with the present invention comprises a plane member a plurality of electrodes within the plane member adapted to contact a human body to detect and monitor human generated voltages. The sensor can be applied to monitor a variety of applications relating to health disease progression fitness and wellness. Some of the specific applications include the monitoring of ECG EEG EMG glucose electrolytes body hydration dehydration tissue state and wounds. Various aspects of the invent aspects of the invention are shown by illustrating certain embodiments. Many other embodiments can be used to implement the invented schemes.Type: ApplicationFiled: April 3, 2014Publication date: March 12, 2015Applicant: HMICRO, INC.Inventors: James Beck, Venkateswara R. Sattiraju, Ali Niknejad, Louis C. Yun, Randall Lee, Surendar Magar, Lois M. Fisher
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Patent number: 8879983Abstract: The present invention relates to a communication system and methods of use thereof. The system includes sets of complementary radios for transmitting and receiving signals to achieve high reliability and reduced costs. The sets of complementary radios are in wireless communication with each other. A new connection is made by selecting from amongst the complementary radios. Switching between complementary radios during a connection is also permitted. Optimized protocols and hardware for implementing the system are disclosed.Type: GrantFiled: February 6, 2009Date of Patent: November 4, 2014Assignee: HMicro, Inc.Inventors: Louis C. Yun, Ali Niknejad, Venkateswara R. Sattiraju, James Beck, Surendar Magar
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Patent number: 8718742Abstract: A sensor system in accordance with the present invention comprises a plane member, a plurality of electrodes within the plane member, adapted to contact a human body to detect and monitor human generated voltages. The sensor can be applied to monitor a variety of applications relating to health, disease progression, fitness and wellness. Some of the specific applications include the monitoring of ECG, EEG, EMG, glucose, electrolytes, body hydration, dehydration, tissue state and wounds. Various aspects of the invention are shown by illustrating certain embodiments. Many other embodiments can be used to implement the invented schemes.Type: GrantFiled: May 23, 2008Date of Patent: May 6, 2014Assignee: HMicro, Inc.Inventors: James Beck, Venkateswara R. Sattiraju, Ali M. Niknejad, Louis C. Yun, Randall Lee, Surendar Magar, Lois M. Fisher
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Patent number: 8064944Abstract: A method for power control with signal quality estimation for smart antenna communications system is described. The method, for example, starts with a transmit power assignment. Receive weight vector determination is carried out with this assigned transmit power, and the new weights used. An estimate of the resulting received signal quality is obtained and used for another power adjustment.Type: GrantFiled: March 15, 2006Date of Patent: November 22, 2011Assignee: Intel CorporationInventor: Louis C. Yun
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Publication number: 20110130092Abstract: The present invention relates to a communication system and methods of use thereof. The system includes sets of complementary radios for transmitting and receiving signals to achieve high reliability and reduced costs. The sets of complementary radios are in wireless communication with each other. A new connection is made by selecting from amongst the complementary radios. Switching between complementary radios during a connection is also permitted. Optimized protocols and hardware for implementing the system are disclosed.Type: ApplicationFiled: February 6, 2009Publication date: June 2, 2011Inventors: Louis C. Yun, Ali Niknrjad, Venkateswara R. Sattiraju, James Beck, Surendar Magar
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Publication number: 20110019561Abstract: Provided herein is a wireless communication system comprising a first device and a second device. The first device comprises a first radio type and a second radio type. The second device comprises a first radio type and a second radio type. The first device is adaptable to form a communication link with the second device using the first radio or the second radio. The first device can be adaptable to transmit data to the second device through the first radio type or the second radio type. The second device can be adaptable to form a communication link with the first device through dynamic switching between the first radio type and second radio type of the second device. The second device can be adaptable to receive data from the first device through the first radio type or the second radio type. The second device can be adaptable to transmit data to the first device using the first radio type or the second radio type.Type: ApplicationFiled: October 24, 2008Publication date: January 27, 2011Inventors: Louis C. Yun, Ali Niknejad, Venkateswara Sattiraju, Surendar Magar
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Publication number: 20100317958Abstract: A sensor system in accordance with the present invention comprises a plane member, a plurality of electrodes within the plane member, adapted to contact a human body to detect and monitor human generated voltages. The sensor can be applied to monitor a variety of applications relating to health, disease progression, fitness and wellness. Some of the specific applications include the monitoring of ECG, EEG, EMG, glucose, electrolytes, body hydration, dehydration, tissue state and wounds. Various aspects of the invention are shown by illustrating certain embodiments. Many other embodiments can be used to implement the invented schemes.Type: ApplicationFiled: May 23, 2008Publication date: December 16, 2010Inventors: James Beck, Venkateswara R. Sattiraju, Ali M. Niknejad, Louis C. Yun, Randall Lee, Surendar Magar, Lois M. Fisher
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Patent number: 7751854Abstract: A method and apparatus is described for modifying a smart antenna processing strategy determined from a set of signals received at an array of antenna elements of a wireless station, such as a set of weights for processing received antenna signals or forming a set of antenna signals for transmission. The method and apparatus uses the signatures of one or more interferers to produce a modified processing strategy that improves the nulling to the one or more interferers in that, when the modified strategy is applied on the downlink, the transmit signal strength in the direction of the one or more interferers is decreased, and, when the modified strategy is applied on the uplink, the sensitivity to signals from the direction of the one or more interferers is decreased.Type: GrantFiled: September 19, 2006Date of Patent: July 6, 2010Assignee: Intel CorporationInventors: Mark C. Leifer, Tibor Boros, Mitchell D. Trott, Louis C. Yun
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Patent number: 7299071Abstract: This invention relates to a method and apparatus for transmitting a downlink signal from a communication station to one or more subscriber units to achieve a desired radiation level over a desired sector (e.g., everywhere), the communication station including an array of antenna elements and one or more signal processors programmed (in the case of programmable signal processors) to weight the downlink signal according to one of a sequence of complex valued weight vectors. The method includes sequentially repeating transmitting the downlink signal, each repetition with a different weight vector from the sequence until all weight vectors in the sequence have been transmitted with. The sequence is designed for achieving the desired radiation level during at least one of the repetitions. In this way, every user in the desired region is transmitted to in the time period.Type: GrantFiled: October 11, 2000Date of Patent: November 20, 2007Assignee: ArrayComm, LLCInventors: Craig H. Barratt, David M. Parish, Christopher R. Uhlik, Stephen Boyd, Louis C. Yun, Marc H. Goldburg
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Patent number: 7139592Abstract: A method and apparatus is described for modifying a smart antenna processing strategy determined from a set of signals received at an array of antenna elements of a wireless station, such as a set of weights for processing received antenna signals or forming a set of antenna signals for transmission. The method and apparatus uses the signatures of one or more interferers to produce a modified processing strategy that improves the nulling to the one or more interferers in that, when the modified strategy is applied on the downlink, the transmit signal strength in the direction of the one or more interferers is decreased, and, when the modified strategy is applied on the uplink, the sensitivity to signals from the direction of the one or more interferers is decreased.Type: GrantFiled: June 21, 1999Date of Patent: November 21, 2006Assignee: ArrayComm LLCInventors: Mark C. Leifer, Tibor Boros, Mitchell D. Trott, Louis C. Yun
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Patent number: 7035661Abstract: A method for ongoing power control for a communication station with a multiple antenna array, the power control using a method for signal quality estimation applicable for angle modulated signals. One aspect of the ongoing power control method is applicable for the uplink and includes separating the joint determination of a receive weight vector and ongoing power control into a receive weight vector determining part and a separate transmit power adjustment part. In one embodiment, the ongoing power control method for the downlink includes separating the joint determination of a receive weight vector and ongoing power control into a receive weight vector determining part and a separate transmit power adjustment part. The method starts with one part, for example transmit power assignment. Receive weight vector determination is carried out with this assigned transmit power, and the new weights used. An estimate of the resulting received signal quality is obtained and used for new ongoing power adjustment.Type: GrantFiled: August 28, 2002Date of Patent: April 25, 2006Assignee: ArrayComm, LLC.Inventor: Louis C. Yun
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Patent number: 6985466Abstract: The present invention is a method for operating a base station (BS) for transmitting information to a subscriber unit (SU) in a cellular communication system. The information is included in a downlink signal sent from a signal processing circuit through an array of antennae. The processing depends on a weight set that is utilized in generating individual signals to be sent on individual antennae in the array to the SU. The weight set is determined by transmitting a plurality of pilot downlink signals from BS to the SU, each pilot downlink signal being processed with a different weight set than that used to process the other pilot downlink signals. Report signals are received for each of the pilot downlink signals and are compared to determine which weight set should be utilized. The present invention may be practiced within existing CDMA cellular standards such as the IS-95 standard.Type: GrantFiled: November 9, 1999Date of Patent: January 10, 2006Assignee: ArrayComm, Inc.Inventors: Louis C. Yun, Mitchell D. Trott
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Patent number: 6839574Abstract: A downlink beamforming apparatus and method. In one embodiment, a method in accordance with the teachings of the present invention includes receiving uplink communication signals from a plurality of antenna array elements, selecting an operating condition of an environment and estimating downlink beamforming weights used in downlink communication signals in response to the selected operation condition of the environment.Type: GrantFiled: December 20, 2000Date of Patent: January 4, 2005Assignee: ArrayComm, Inc.Inventors: Paul Petrus, Antoine Chemali, David Depierre, Louis C. Yun
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Patent number: 6463295Abstract: A method for ongoing power control for a communication station with a multiple antenna array, the power control using a method for signal quality estimation applicable for angle modulated signals. One aspect of the ongoing power control method is applicable for the uplink and includes separating the joint determination of a receive weight vector and ongoing power control into a receive weight vector determining part and a separate transmit power adjustment part. In one embodiments, The ongoing power control method for the downlink includes separating the joint determination of a receive weight vector and ongoing power control into a receive weight vector determining part and a separate transmit power adjustment part. The method starts with one part, for example transmit power assignment. Receive weight vector determination is carried out with this assigned transmit power and the new weights used. An estimate of the resulting received signal quality is obtained and used for new ongoing power adjustment.Type: GrantFiled: February 6, 1998Date of Patent: October 8, 2002Assignee: ArrayComm, Inc.Inventor: Louis C. Yun
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Publication number: 20020090978Abstract: A downlink beamforming apparatus and method. In one embodiment, a method in accordance with the teachings of the present invention includes receiving uplink communication signals from a plurality of antenna array elements, selecting an operating condition of an environment and estimating downlink beamforming weights used in downlink communication signals in response to the selected operation condition of the environment.Type: ApplicationFiled: December 20, 2000Publication date: July 11, 2002Inventors: Paul Petrus, Antoine Chemali, David Depierre, Louis C. Yun