Patents Assigned to TM IP Holdings, LLC
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Patent number: 11343670Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transmitting, by a first device, a transmission signal that includes a carrier signal modulated with a TM signal. Receiving a response signal from a second device in response to the transmission signal. Determining, whether the response signal includes the TM signal.Type: GrantFiled: June 10, 2019Date of Patent: May 24, 2022Assignee: TM IP HOLDINGS, LLCInventors: Richard C. Gerdes, Daniel L. Hodges, Quinn Colin McIntosh
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Patent number: 11218355Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for communicating signals using a multi-dimensional symbol constellation. In one example, a process for modulating a carrier signal includes the actions of mapping data to symbols of a multi-dimensional symbol constellation that includes at least three dimensions, each dimension of the constellation represented by a respective modulation signal. The dimensions of the constellation include first and second dimensions each of which are represented by respective in-phase modulation values and quadrature phase modulation values of a quadrature amplitude modulation (QAM) signal, and a third dimension represented by a transpositional modulation (TM) signal. The method further includes modulating a carrier signal with the TM signal and the QAM signal.Type: GrantFiled: September 14, 2020Date of Patent: January 4, 2022Assignee: TM IP HOLDINGS, LLCInventors: Richard C. Gerdes, Harvey C. Woodsum
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Patent number: 11184200Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for modulating and demodulating transpositional modulated (TM) signals. One aspect features a method of modulating a carrier signal that include the actions of generating a TM signal by generating a sinusoidal signal, and modulating the sinusoidal signal based on a data signal to provide the TM signal. Inserting the TM signal into a carrier signal to provide a TM modulated carrier signal. Modulating the TM modulated carrier signal with a non-TM signal to provide a combined signal. Transmitting the combined signal.Type: GrantFiled: September 17, 2019Date of Patent: November 23, 2021Assignee: TM IP HOLDINGS, LLCInventors: Harvey C. Woodsum, Richard C. Gerdes
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Patent number: 10880149Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for modulating and demodulating transpositional modulated (TM) signals. One aspect features a method of modulating a carrier signal that includes the operations of generating a non-transpositional modulation (non-TM) signal from a first data signal, where the non-TM signal has a frequency spectrum that occupies a bandwidth. Generating a TM signal by generating a modulation from a second data signal, and shifting the modulation signal in frequency to an upper or lower sideband in the frequency spectrum of the non-TM signal which lies within the bandwidth of the non-TM signal, and where the power of the first modulated signal is less than a power of the non-TM signal. Combining the non-TM signal with the TM signal on a common carrier signal to provide a combined signal. Transmitting the combined signal.Type: GrantFiled: March 16, 2020Date of Patent: December 29, 2020Assignee: TM IP Holdings, LLCInventor: Harvey C. Woodsum
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Patent number: 10778497Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for communicating signals using a multi-dimensional symbol constellation. In one example, a process for modulating a carrier signal includes the actions of mapping data to symbols of a multi-dimensional symbol constellation that includes at least three dimensions, each dimension of the constellation represented by a respective modulation signal. The dimensions of the constellation include first and second dimensions each of which are represented by respective in-phase modulation values and quadrature phase modulation values of a quadrature amplitude modulation (QAM) signal, and a third dimension represented by a transpositional modulation (TM) signal. The method further includes modulating a carrier signal with the TM signal and the QAM signal.Type: GrantFiled: June 26, 2019Date of Patent: September 15, 2020Assignee: TM IP Holdings, LLCInventors: Richard C. Gerdes, Harvey C. Woodsum
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Patent number: 10594539Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for modulating and demodulating transpositional modulated (TM) signals. One aspect features a method of modulating a carrier signal that includes the operations of generating a non-transpositional modulation (non-TM) signal from a first data signal, where the non-TM signal has a frequency spectrum that occupies a bandwidth. Generating a TM signal by generating a modulation from a second data signal, and shifting the modulation signal in frequency to an upper or lower sideband in the frequency spectrum of the non-TM signal which lies within the bandwidth of the non-TM signal, and where the power of the first modulated signal is less than a power of the non-TM signal. Combining the non-TM signal with the TM signal on a common carrier signal to provide a combined signal. Transmitting the combined signal.Type: GrantFiled: June 5, 2019Date of Patent: March 17, 2020Assignee: TM IP Holdings, LLCInventor: Harvey C. Woodsum
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Patent number: 10578709Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for detecting electronic counter measure (ECM) signals and embedding covert messages in radar or sonar signals. In one aspect, a method for detecting ECM signals includes receiving a radar return signal from an object. The method includes determining whether radar return signal includes a TM signal, and identifying the radar return signal as a skin return signal or an electronic counter measure signal based on whether the radar return signal includes the TM signal.Type: GrantFiled: April 20, 2017Date of Patent: March 3, 2020Assignee: TM IP Holdings, LLCInventors: Daniel L. Hodges, Richard C. Gerdes
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Patent number: 10531338Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for determining, by a first device, that a second device is within range for direct communications and that the second device is capable of performing transpositional modulation (TM) communications. Determining to use transpositional modulation to send data to the second device. Sending the data to the second device using a TM signal.Type: GrantFiled: February 25, 2019Date of Patent: January 7, 2020Assignee: TM IP Holdings, LLCInventors: Richard C. Gerdes, Daniel L. Hodges, Quinn Colin McIntosh
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Patent number: 10454727Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for modulating and demodulating transpositional modulated (TM) signals. One aspect features a method of modulating a carrier signal that include the actions of generating a TM signal by generating a sinusoidal signal, and modulating the sinusoidal signal based on a data signal to provide the TM signal. Inserting the TM signal into a carrier signal to provide a TM modulated carrier signal. Modulating the TM modulated carrier signal with a non-TM signal to provide a combined signal. Transmitting the combined signal.Type: GrantFiled: January 26, 2018Date of Patent: October 22, 2019Assignee: TM IP Holdings, LLCInventors: Harvey C. Woodsum, Richard C. Gerdes
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Patent number: 10425271Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium for receiving, by a first device, a first signal from a second device, the first signal including a carrier signal modulated with a first modulation signal. Detecting a frequency of the carrier signal by performing a carrier extraction (CAREX) process on the first signal. Adding a second modulation signal to the carrier signal of the first signal to produce a combined signal, wherein the second modulation signal is a transpositional modulation (TM) signal and the first modulation signal is a non-TM signal. Transmitting the combined signal.Type: GrantFiled: January 26, 2018Date of Patent: September 24, 2019Assignee: TM IP Holdings, LLCInventors: Richard C. Gerdes, Daniel L. Hodges, Quinn Colin McIntosh
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Patent number: 10341161Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for communicating signals using a multi-dimensional symbol constellation. In one example, a process for modulating a carrier signal includes the actions of mapping data to symbols of a multi-dimensional symbol constellation that includes at least three dimensions, each dimension of the constellation represented by a respective modulation signal. The dimensions of the constellation include first and second dimensions each of which are represented by respective in-phase modulation values and quadrature phase modulation values of a quadrature amplitude modulation (QAM) signal, and a third dimension represented by a transpositional modulation (TM) signal. The method further includes modulating a carrier signal with the TM signal and the QAM signal.Type: GrantFiled: November 17, 2017Date of Patent: July 2, 2019Assignee: TM IP Holdings, LLCInventors: Richard C. Gerdes, Harvey C. Woodsum
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Patent number: 10321304Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transmitting, by a first device, a transmission signal that includes a carrier signal modulated with a TM signal. Receiving a response signal from a second device in response to the transmission signal. Determining, whether the response signal includes the TM signal.Type: GrantFiled: January 26, 2018Date of Patent: June 11, 2019Assignee: TM IP Holdings, LLCInventors: Richard C. Gerdes, Daniel L. Hodges, Quinn Colin McIntosh
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Patent number: 10284401Abstract: Systems and methods for transpositional modulation and demodulation are provided. One such method for generating a signal includes the steps of providing a look-up table having a plurality of quarter-cycle waveforms, each of said quarter-cycle waveforms associated with a respective input level; receiving an input signal; and outputting quarter-cycle waveforms associated with levels of the received input signal. Systems for transpositional modulation are also provided. One such system for generating a signal includes a look-up table having a plurality of quarter-cycle waveforms. Each of the quarter-cycle waveforms are associated with a respective input level, and the look-up table is configured to receive an input signal, and output quarter-cycle waveforms associated with levels of the received input signal.Type: GrantFiled: October 9, 2017Date of Patent: May 7, 2019Assignee: TM IP Holdings, LLCInventor: Richard C. Gerdes
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Patent number: 10284399Abstract: Systems, methods and devices for transmitting and receiving and demodulating transpositional modulated signals, for increasing information bandwidth of defined communication channels, and for time-delay shifting an input signal in accordance to an input control signal are provided. One such method of increasing the information bandwidth of a defined communication channel includes receiving a first modulated signal having a first carrier signal frequency; receiving a second modulated signal having a second carrier signal frequency, the second modulated signal being modulated with information independent of information modulating the first carrier signal, the second carrier signal frequency being harmonically or sub-harmonically related to the first carrier signal frequency; and combining the first and second signals.Type: GrantFiled: December 2, 2016Date of Patent: May 7, 2019Assignee: TM IP Holdings, LLCInventor: Richard C. Gerdes
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Patent number: 10219179Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for determining, by a first device, that a second device is within range for direct communications and that the second device is capable of performing transpositional modulation (TM) communications. Determining to use transpositional modulation to send data to the second device. Sending the data to the second device using a TM signal.Type: GrantFiled: January 8, 2018Date of Patent: February 26, 2019Assignee: TM IP Holdings, LLCInventors: Richard C. Gerdes, Daniel L. Hodges, Quinn Colin McIntosh
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Patent number: 9917721Abstract: Methods, systems, and apparatus for receiving an input signal, where the input signal includes a carrier signal modulated with a first modulation signal and a second modulation signal, and where the second modulation signal is a TM signal. Demodulating the first modulation signal from the input signal. Modulating an un-modulated carrier signal with the first modulation signal to generate a third signal, where the third signal includes the carrier signal modulated by the first modulation signal. And, removing the first modulation signal from the input signal by subtracting the third signal from the input signal to extract the TM signal from the input signal.Type: GrantFiled: April 7, 2017Date of Patent: March 13, 2018Assignee: TM IP Holdings, LLCInventor: Richard C. Gerdes
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Patent number: 9893915Abstract: Methods, systems, and apparatus for detecting a center frequency of an input signal, the input signal including a carrier signal modulated with a modulation signal. Detecting a frequency of a second signal. Determining a difference signal between the center frequency of the input signal and the frequency of the second signal. Modifying the frequency of the second signal based on the difference signal to provide the carrier signal. And, outputting the carrier signal.Type: GrantFiled: April 7, 2017Date of Patent: February 13, 2018Assignee: TM IP Holdings, LLCInventor: Richard C. Gerdes
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Patent number: 9882762Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium for receiving, by a first device, a first signal from a second device, the first signal including a carrier signal modulated with a first modulation signal. Detecting a frequency of the carrier signal by performing a carrier extraction (CAREX) process on the first signal. Adding a second modulation signal to the carrier signal of the first signal to produce a combined signal, wherein the second modulation signal is a transpositional modulation (TM) signal and the first modulation signal is a non-TM signal. Transmitting the combined signal.Type: GrantFiled: April 13, 2017Date of Patent: January 30, 2018Assignee: TM IP Holdings, LLCInventors: Richard C. Gerdes, Daniel L. Hodges, Quinn Colin McIntosh
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Patent number: 9883375Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transmitting, by a first device, a transmission signal that includes a carrier signal modulated with a TM signal. Receiving a response signal from a second device in response to the transmission signal. Determining, whether the response signal includes the TM signal.Type: GrantFiled: July 20, 2017Date of Patent: January 30, 2018Assignee: TM IP Holdings, LLCInventors: Richard C. Gerdes, Daniel L. Hodges, Quinn Colin McIntosh
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Patent number: 9882764Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for modulating and demodulating transpositional modulated (TM) signals. One aspect features a method of modulating a carrier signal that include the actions of generating a TM signal by generating a sinusoidal signal, and modulating the sinusoidal signal based on a data signal to provide the TM signal. Inserting the TM signal into a carrier signal to provide a TM modulated carrier signal. Modulating the TM modulated carrier signal with a non-TM signal to provide a combined signal. Transmitting the combined signal.Type: GrantFiled: April 19, 2017Date of Patent: January 30, 2018Assignee: TM IP Holdings, LLCInventors: Harvey C. Woodsum, Richard C. Gerdes