Patents by Inventor Samuel J MacMullan
Samuel J MacMullan 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: 11206545Abstract: Embodiments assign shared spectrum resources to access points. Embodiments group the access points into coexistence groups of access points, and generate a vertex graph including vertices that each represent one of the coexistence groups, where an edge connecting a pair of vertices in the vertex graph represents an overlap between coverage contours of a pair of coexistence groups represented by the pair of vertices, and the edge is assigned a weight that is proportional to the overlap as compared to other overlaps between coverage contours of other pairs of coexistence groups. Embodiments generate at least one vertex-colored graph by assigning a color to each vertex in the vertex graph, group the coexistence groups into groups of coexistence groups based on their corresponding assigned colors in the at least one vertex-colored graph, and map shared spectrum transmit frequencies to the groups of coexistence groups.Type: GrantFiled: April 16, 2019Date of Patent: December 21, 2021Assignee: Federated Wireless, Inc.Inventors: Samuel J. MacMullan, Masoud Olfat, Deepak Das, Pirouz Zarrinkhat
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Publication number: 20190246288Abstract: Embodiments assign shared spectrum resources to access points. Embodiments group the access points into coexistence groups of access points, and generate a vertex graph including vertices that each represent one of the coexistence groups, where an edge connecting a pair of vertices in the vertex graph represents an overlap between coverage contours of a pair of coexistence groups represented by the pair of vertices, and the edge is assigned a weight that is proportional to the overlap as compared to other overlaps between coverage contours of other pairs of coexistence groups. Embodiments generate at least one vertex-colored graph by assigning a color to each vertex in the vertex graph, group the coexistence groups into groups of coexistence groups based on their corresponding assigned colors in the at least one vertex-colored graph, and map shared spectrum transmit frequencies to the groups of coexistence groups.Type: ApplicationFiled: April 16, 2019Publication date: August 8, 2019Applicant: Federated Wireless, Inc.Inventors: Samuel J. MacMULLAN, Masoud OLFAT, Deepak DAS, Pirouz ZARRINKHAT
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Patent number: 10313891Abstract: Embodiments assign shared spectrum resources to access points. Embodiments group the access points into coexistence groups of access points, and generate a vertex graph including vertices that each represent one of the coexistence groups, where an edge connecting a pair of vertices in the vertex graph represents an overlap between coverage contours of a pair of coexistence groups represented by the pair of vertices, and the edge is assigned a weight that is proportional to the overlap as compared to other overlaps between coverage contours of other pairs of coexistence groups. Embodiments generate at least one vertex-colored graph by assigning a color to each vertex in the vertex graph, group the coexistence groups into groups of coexistence groups based on their corresponding assigned colors in the at least one vertex-colored graph, and map shared spectrum transmit frequencies to the groups of coexistence groups.Type: GrantFiled: September 4, 2018Date of Patent: June 4, 2019Assignee: FEDERATED WIRELESS, INC.Inventors: Samuel J. MacMullan, Masoud Olfat, Deepak Das, Pirouz Zarrinkhat
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Publication number: 20180376345Abstract: Embodiments assign shared spectrum resources to access points. Embodiments group the access points into coexistence groups of access points, and generate a vertex graph including vertices that each represent one of the coexistence groups, where an edge connecting a pair of vertices in the vertex graph represents an overlap between coverage contours of a pair of coexistence groups represented by the pair of vertices, and the edge is assigned a weight that is proportional to the overlap as compared to other overlaps between coverage contours of other pairs of coexistence groups. Embodiments generate at least one vertex-colored graph by assigning a color to each vertex in the vertex graph, group the coexistence groups into groups of coexistence groups based on their corresponding assigned colors in the at least one vertex-colored graph, and map shared spectrum transmit frequencies to the groups of coexistence groups.Type: ApplicationFiled: September 4, 2018Publication date: December 27, 2018Applicant: Federated Wireless, Inc.Inventors: Samuel J. MacMULLAN, Masoud OLFAT, Deepak DAS, Pirouz ZARRINKHAT
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Patent number: 10098005Abstract: Embodiments assign shared spectrum resources to access points. Embodiments group the access points into coexistence groups of access points, and generate a vertex graph including vertices that each represent one of the coexistence groups, where an edge connecting a pair of vertices in the vertex graph represents an overlap between coverage contours of a pair of coexistence groups represented by the pair of vertices, and the edge is assigned a weight that is proportional to the overlap as compared to other overlaps between coverage contours of other pairs of coexistence groups. Embodiments generate at least one vertex-colored graph by assigning a color to each vertex in the vertex graph, group the coexistence groups into groups of coexistence groups based on their corresponding assigned colors in the at least one vertex-colored graph, and map shared spectrum transmit frequencies to the groups of coexistence groups.Type: GrantFiled: February 20, 2018Date of Patent: October 9, 2018Assignee: FEDERATED WIRELESS, INC.Inventors: Samuel J. MacMullan, Masoud Olfat, Deepak Das, Pirouz Zarrinakhat
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Publication number: 20180242165Abstract: Embodiments assign shared spectrum resources to access points. Embodiments group the access points into coexistence groups of access points, and generate a vertex graph including vertices that each represent one of the coexistence groups, where an edge connecting a pair of vertices in the vertex graph represents an overlap between coverage contours of a pair of coexistence groups represented by the pair of vertices, and the edge is assigned a weight that is proportional to the overlap as compared to other overlaps between coverage contours of other pairs of coexistence groups. Embodiments generate at least one vertex-colored graph by assigning a color to each vertex in the vertex graph, group the coexistence groups into groups of coexistence groups based on their corresponding assigned colors in the at least one vertex-colored graph, and map shared spectrum transmit frequencies to the groups of coexistence groups.Type: ApplicationFiled: February 20, 2018Publication date: August 23, 2018Applicant: Federated Wireless, Inc.Inventors: Samuel J. MACMULLAN, Masoud OLFAT, Deepak DAS, Pirouz ZARRINAKHAT
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Patent number: 8682638Abstract: Channel emulation in a PC computing platform including at least one general purpose parallel processor (GPPP) includes defining a plurality of fading channels in a GPPP and generating complex tap coefficients in a GPPP for the fading channels.Type: GrantFiled: June 30, 2011Date of Patent: March 25, 2014Assignee: Octoscope, Inc.Inventors: Fanny Mlinarsky, Samuel J. MacMullan
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Publication number: 20130006601Abstract: Channel emulation in a PC computing platform including at least one general purpose parallel processor (GPPP) includes defining a plurality of fading channels in a GPPP and generating complex tap coefficients in a GPPP for the fading channels.Type: ApplicationFiled: June 30, 2011Publication date: January 3, 2013Inventors: Fanny Mlinarsky, Samuel J. MacMullan
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Patent number: 7499462Abstract: A system, method and apparatus for implementing a wireless point-to-point interface that securely and robustly delivers digital content from a generalized content source to a generalized content sink. The system, method and apparatus performs in a manner that is sufficiently secure and robust to serve as a replacement for the delivery of HDMI content over cable. The system, method and apparatus is also applicable to the delivery of other types of content traditionally delivered over cable, including but not limited to Digital Video Interface (DVI) content, composite video (CVSB) content, S-video content, RGB video content, YUV video content, and/or various types of audio content.Type: GrantFiled: April 29, 2005Date of Patent: March 3, 2009Assignee: Radiospire Networks, Inc.Inventors: Samuel J. MacMullan, Steven S. Fastert, Tandhoni S. Rao
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Publication number: 20080168519Abstract: An audio/video switching system is described that selectively enables multiple heterogeneous audio/video sources to transmit data to a single audio/video sink such as a display or audio/video repeater. The audio/video switching system supports format conversion to enable, for example, multiple different audio/video formats to be transmitted to the audio/video sink using a single link. In some implementations, the single link is a high-bandwidth, high-quality wireless link for carrying high definition and standard definition audio/video signals. Various home theater systems that include such an audio/video switching system are also described herein.Type: ApplicationFiled: January 2, 2008Publication date: July 10, 2008Applicant: RADIOSPIRE NETWORKS, INC.Inventors: Tandhoni S. Rao, Samuel J. MacMullan, Steven S. Fastert, Bhavin Patel, Donald W. Bryce
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Patent number: 7394875Abstract: A method for preamble detection in mobile unit to base unit wireless telephony sets a preamble detection threshold based upon a Beaulieu series computation dependent upon preamble correlation data. This preamble detection threshold adjusts for noise by assuming the noise is additive White Gaussian noise (AWGN) with a known variance. The method determines the threshold for achieving a probability of false detection of the preamble from noise input of less than 0.001.Type: GrantFiled: April 18, 2005Date of Patent: July 1, 2008Assignee: Texas Instruments IncorporatedInventors: Samuel J. MacMullan, Oguz Tanrikulu, Frank C. Livingston, Arnon A. Friedmann
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Publication number: 20080155372Abstract: The present invention is directed to methods and apparatus for improving error indication performance in systems employing low-density parity check (LDPC) codes. In one aspect, a method and apparatus for providing error indication based on full LDPC parity check re-encoding are provided. In an embodiment, an LDPC encoder is employed at the receiver to re-encode the parity bits. In another embodiment, the parity bits are re-encoded recursively based on information readily available at the decoder of the receiver. In another aspect, a method and apparatus for providing error indication based on partial LDPC parity check re-encoding are provided. In an embodiment, partial checksum information is determined based on the decoder output and used to provide error indication. In a further aspect, a hybrid CRC checking and LDPC parity check re-encoding approach is provided. This approach further enhances error indication performance by reducing the miss probability compared to pure LDPC parity check re-encoding.Type: ApplicationFiled: December 21, 2006Publication date: June 26, 2008Applicant: Radiospire Networks, Inc.Inventors: David Kravitz, Samuel J. MacMullan, Andrew Thangaraj, Jianhan Liu
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Publication number: 20080101467Abstract: The present invention is directed to methods and systems for enabling secure and efficient wireless transmission of HDCP-encrypted high definition (HD) signals. In one aspect, the present invention provides methods and systems for reducing the data rate required to convey HD content to enable direct wireless transmission of HD content. In another aspect, the present invention provides methods and systems for reducing the data rate required to convey HD content that are compatible with HDCP encryption of content. In a further aspect, the present invention provides methods and systems for reducing the data rate required to convey HD content while maintaining a high quality of content.Type: ApplicationFiled: October 27, 2006Publication date: May 1, 2008Applicant: Radiospire Networks, Inc.Inventors: Samuel J. MacMullan, Tandhoni S. Rao, Jeff Winston, Jianhan Liu, Ming Zhang
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Publication number: 20070296461Abstract: The present invention is directed to a system, method, and apparatus to transmit/receive TMDS signals using general purpose differential transmitter and receivers. In an embodiment, the general purpose differential transmitter and receivers are designed to operate with differential signaling schemes such as LVDS and LVPECL. In one aspect, embodiments according to the present invention enable the re-configuration of existing and fully-characterized LVDS/LVPECL transmitter/receiver cells to support TMDS (using minimal sets of external components). This provides considerable cost and development time savings, thereby allowing the development of products much more expediently. In another aspect, embodiments according to the present invention provide interfacing methods and systems between differential signaling schemes such as LVDS/LVPECL and TMDS.Type: ApplicationFiled: November 16, 2006Publication date: December 27, 2007Applicant: Radiospire Networks, Inc.Inventors: Wayne Wong, Mark Sankey, Samuel J. MacMullan, Steven S. Fastert, Jeff Winston, Tandhoni S. Rao
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Publication number: 20070291938Abstract: A system, method, and apparatus that improves the efficiency of HD content delivery systems. An embodiment of the invention eliminates unnecessary encoding overhead due to TMDS encoding in HD content delivery systems. An embodiment of the invention further allows for increased error protection at lower overhead in HD content delivery systems. Furthermore, embodiments of the present invention provide less expensive and more efficient techniques for transmitting content protection information in HD content delivery systems. The invention is applicable to HD content delivery systems such as DVI and HDMI systems, including systems that employ novel data transmission techniques of the present invention as well as conventional content delivery systems. The invention is applicable to copper and fiber HD content delivery systems.Type: ApplicationFiled: October 12, 2006Publication date: December 20, 2007Applicant: Radiospire Networks, Inc.Inventors: Tandhoni S. Rao, Samuel J. MacMullan, Steven S. Fastert
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Publication number: 20070291856Abstract: A improved method and system for regenerating a video pixel and/or audio sampling clock in a system that wirelessly transfers video and audio content from a content source to a content sink.Type: ApplicationFiled: October 13, 2006Publication date: December 20, 2007Applicant: Radiospire Networks, Inc.Inventors: Steven S. Fastert, Jeff Winston, Mark Sankey, Craig A. Thomas, John A. Flanders, Bhavin Patel, Samuel J. MacMullan
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Publication number: 20070222779Abstract: The present invention is directed to a system, method and apparatus for implementing a content delivery system that includes at least one bi-directional distribution system between a generalized content source and a generalized content sink. The bi-directional distribution system enables the content source and the content sink to coordinate with each other to determine the capabilities of the content distribution system, the content source, and the content sink, and to best control the content format accordingly.Type: ApplicationFiled: December 21, 2006Publication date: September 27, 2007Applicant: Radiospire Networks, Inc.Inventors: Steven S. Fastert, Bhavin Patel, Samuel J. MacMullan, Tandhoni S. Rao
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Patent number: 7095987Abstract: A first downlink transmission beam and a second downlink transmission beam is determined based on a received user-derived signal. The first downlink transmission beam is substantially uncorrelated with the second downlink transmission beam. The first downlink transmission beam is associated with a portion within a first sector. The second downlink transmission beam is associated with a portion within a second sector. A first signal is diversity encoded to produce a first diversity-encoded signal. A second signal is diversity encoded to produce a second diversity-encoded signal. The first diversity-encoded signal is sent over the first downlink transmission beam. The second diversity-encoded signal is sent over the second downlink transmission beam.Type: GrantFiled: November 15, 2001Date of Patent: August 22, 2006Assignee: Texas Instruments IncorporatedInventors: Louis R Brothers, Jr., John Cangeme, Alexander Flaig, Samuel J MacMullan, H. Vincent Poor, Tandhoni S Rao, Stuart C Schwartz, Triveni N Upadhyay
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Publication number: 20040046695Abstract: Method and apparatus for high resolution tracking via mono-pulse beam-forming in a communication system in which the capacity and range of mobile or fixed wireless communication base stations are improved by implementing a single or multiple antenna beam per signal path. Adaptive beam-forming based on up-link direction-of arrival estimation can be performed without using the above-mentioned computationally intensive techniques.Type: ApplicationFiled: November 13, 2002Publication date: March 11, 2004Inventors: Louis R. Brothers, John Cangeme, Alexander Flaig, Samuel J. Macmullan, H. Vincent Poor, Tandhoni S. Rao, Stuart C. Schwartz, Triveni N. Upadhyay
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Publication number: 20030092379Abstract: A first downlink transmission beam and a second downlink transmission beam is determined based on a received user-derived signal. The first downlink transmission beam is substantially uncorrelated with the second downlink transmission beam. The first downlink transmission beam is associated with a portion within a first sector. The second downlink transmission beam is associated with a portion within a second sector. A first signal is diversity encoded to produce a first diversity-encoded signal. A second signal is diversity encoded to produce a second diversity-encoded signal. The first diversity-encoded signal is sent over the first downlink transmission beam. The second diversity-encoded signal is sent over the second downlink transmission beam.Type: ApplicationFiled: November 15, 2001Publication date: May 15, 2003Inventors: Louis R. Brothers, John Cangeme, Alexander Flaig, Samuel J. MacMullan, H V Poor, Tandhoni S. Rao, Stuart C. Schwartz, Triveni N. Upadhyay