Patents by Inventor Joseph Meehan

Joseph Meehan 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).

  • Patent number: 10375039
    Abstract: A method and system for transmission of digital content via e-mail with point of use digital rights management is disclosed. The secured access rights to the digital content may be customized for individual recipients by the sender, and may evolve over time. The access rights are enforced according to a time-dependent scheme. A key server is used to arbitrate session keys for the encrypted content, eliminating the requirement to exchange public keys prior to transmission of the digital content. During the entire process of transmitting and receiving e-mail messages and documents, the exchange of cryptographic keys remains totally transparent to the users of the system. Additionally, electronic documents may be digitally signed with authentication of the signature.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: August 6, 2019
    Assignee: Encryptics, LLC
    Inventors: Patrick Carson Meehan, Zachary Wisenbaker Price, Raymond Joseph Zambroski, Jr., William Henry Frenchu, Shawn Patrick Hickey, Jesse Lee White, Anthony Allen Mohr, Jeremy Wayne Gomsrud
  • Patent number: 10321163
    Abstract: A VP8 video decoder is implemented by partitioning the required functions across multiple sub systems, with an optimal mapping to existing functional blocks. Key optimizations include the reuse of hardware designed for prior generation VP6 and VP7 decoders. In order to reduce implementation complexity, cost and power consumption, a non-exact, approximate deblocking loop filter is implemented.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: June 11, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Mihir Narendra Mody, Chaitanya S Ghone, Joseph Meehan
  • Publication number: 20180353111
    Abstract: Described herein are methods and apparatus monitoring a patient. In one example, a sensor that is configured to detect physiological changes in a patient is driven at a first current level and a subsequent sensor voltage is measured. Thereafter the current is varied to a second current level, and a next sensor voltage is measured. A next sensor voltage is projected based on the sensor voltage and the subsequent sensor voltage, and a third current level is identified that could produce the next sensor voltage. The third current level is compared to a threshold, and an alarm is produced in response thereto. The apparatus further includes elements in the sensor that facilitate the method.
    Type: Application
    Filed: June 7, 2018
    Publication date: December 13, 2018
    Inventors: William Kip Buxton, Robert W. Eikel, Youzhi Li, Dan Lisogurski, Christopher Joseph Meehan
  • Publication number: 20170311002
    Abstract: A VP8 video decoder is implemented by partitioning the required functions across multiple sub systems, with an optimal mapping to existing functional blocks. Key optimizations include the reuse of hardware designed for prior generation V?6 and VP7 decoders. In order to reduce implementation complexity, cost and power consumption, a non exact, approximate deblocking loop filter is implemented.
    Type: Application
    Filed: July 11, 2017
    Publication date: October 26, 2017
    Inventors: Mihir Narendra Mody, Chaitanya S Ghone, Joseph Meehan
  • Patent number: 9706229
    Abstract: A VP8 video decoder is implemented by partitioning the required functions across multiple sub systems, with an optimal mapping to existing functional blocks. Key optimizations include the reuse of hardware designed for prior generation V^6 and VP7 decoders. In order to reduce implementation complexity, cost and power consumption, a non exact, approximate deblocking loop filter is implemented.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: July 11, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Mihir Narendra Mody, Chaitanya S Ghone, Joseph Meehan
  • Publication number: 20140362928
    Abstract: A VP8 video decoder is implemented by partitioning the required functions across multiple sub systems, with an optimal mapping to existing functional blocks. Key optimizations include the reuse of hardware designed for prior generation V?6 and VP7 decoders. In order to reduce implementation complexity, cost and power consumption, a non exact, approximate deblocking loop filter is implemented.
    Type: Application
    Filed: July 24, 2013
    Publication date: December 11, 2014
    Inventors: Mihir Narendra Mody, Chaitanya S. Ghone, Joseph Meehan
  • Publication number: 20080220715
    Abstract: A usage specification device is used to limit the use of information signals (audio, image, data) and to limit the output of disturbing signals (speaker, flash, light, RF transmission) in several devices in a large restricted area. For example, the usage specification device may transmit a certain type of control signal to disable image capture by camera-equipped portable/mobile devices, or it may transmit other types of control signals to disable audio capture or data capture by such devices. Similarly, the specification device may transmit a certain type of control signal to reduce the speaker volume on portable/mobile devices, or it may transmit other types of control signals to disable the flash, or minimize the intensity of light emitted by the display or restrict the transmission of RF signals from such devices. Due to such features, only undesirable features of portable/mobile devices may be prevented in restricted areas, while permitting other uses.
    Type: Application
    Filed: March 9, 2007
    Publication date: September 11, 2008
    Inventors: Bhartendu Sinha, Joseph Meehan, Jithendranadh Niruthambath
  • Patent number: 7274759
    Abstract: An apparatus and method for improving the signal reception of a digital wireless receiver comprises a processing circuit for processing the preamble information of incoming signals, wherein a first predetermined portion of the preamble information is applied to a first antenna and a second predetermined portion of the preamble information is applied to a second antenna to produce a plurality of processed signals, such that the plurality of processed signals is compared to a predefined preamble sequence to obtain a mean-square error (MSE) for the respective antenna. Then, one of the first and second antennas with a lower MSE is selected to receive and process the incoming signals.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: September 25, 2007
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Joseph Meehan, Sunghyun Choi
  • Patent number: 6950477
    Abstract: An adaptive antenna system includes N antennae, N forward equalizers operatively coupled to a respective one of the N antennae, and N processors performing a constant modulus algorithm (CMA) to thereby generate N respective control signals which adapt coefficients associated with each respective one of the forward equalizer. Preferably, the adaptive antenna system also includes a sampling device receiving a signal based on the collected output of the N forward equalizers, and a feedback equalizer receiving an output of the sampling device and generating a feedback signal biasing the signal received by the sampling device. If desired, the N control signals are applied to the N respective forward equalizers during a first operating mode, and a selected one of the N control signals is applied to the N forward equalizers during second mode of operation. A method of operating a beamforming antenna system is also described.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: September 27, 2005
    Inventors: Joseph Meehan, William A Sethares
  • Patent number: 6909753
    Abstract: The invention relates to a method and system for modulating an MPEG-4 FGS compressed video stream for variable-bandwidth transmission. A source of a video stream is provided, and a display having means for generating a control input signal for controlling one or more of video compression, error correction code generation, or symbol constellation mapping. The source video stream is compressed using MPEG-4 FGS compression to generate a compressed output video stream. The video compression is optionally performed based upon the control input signal from the display. Error correction code for the compressed video stream may be added, and its generation and addition may be optionally controlled based upon the control input signal from the display. The resulting video symbols may then be mapped to constellations, with this mapping also optionally controlled based upon the control input signal. The resulting compressed output video stream is then transmitted to the display.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: June 21, 2005
    Assignee: Koninklijke Philips Electronics, N.V.
    Inventors: Joseph Meehan, Mihaela van der Schaar
  • Publication number: 20030119468
    Abstract: An apparatus and method for improving the signal reception of a digital wireless receiver comprises a processing circuit for processing the preamble information of incoming signals, wherein a first predetermined portion of the preamble information is applied to a first antenna and a second predetermined portion of the preamble information is applied to a second antenna to produce a plurality of processed signals, such that the plurality of processed signals is compared to a predefined preamble sequence to obtain a mean-square error (MSE) for the respective antenna. Then, one of the first and second antennas with a lower MSE is selected to receive and process the incoming signals.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 26, 2003
    Applicant: Koninklijke Philips Electronics N.V.
    Inventors: Joseph Meehan, Sunghyun Choi
  • Publication number: 20030112780
    Abstract: A method and system for combining signals in a receiver are provided. If the current packet is determined to be the retransmitted packet according to predetermined criteria, The retransmitted packet and the previously stored packet in error with the same packet number are combined using a maximum ratio combining method according to the signal-to-noise-ratio (SNR) calculated from the preamble of each packet. With this type of diversity combining, a reliable data packet transmission in a shorter time period can be obtained while increasing the SNR and reducing the throughput time in multipath channel.
    Type: Application
    Filed: December 17, 2001
    Publication date: June 19, 2003
    Applicant: Koninklijke Philips Electronics N.V.
    Inventors: Xuemei Ouyang, Joseph Meehan, Sunghyun Choi
  • Publication number: 20030103571
    Abstract: The invention relates to a method and system for modulating an MPEG-4 FGS compressed video stream for variable-bandwidth transmission. A source of a video stream is provided, and a display having means for generating a control input signal for controlling one or more of video compression, error correction code generation, or symbol constellation mapping. The source video stream is compressed using MPEG-4 FGS compression to generate a compressed output video stream. The video compression is optionally performed based upon the control input signal from the display. Error correction code for the compressed video stream may be added, and its generation and addition may be optionally controlled based upon the control input signal from the display. The resulting video symbols may then be mapped to constellations, with this mapping also optionally controlled based upon the control input signal. The resulting compressed output video stream is then transmitted to the display.
    Type: Application
    Filed: December 5, 2001
    Publication date: June 5, 2003
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Joseph Meehan, Mihaela van der Schaar
  • Publication number: 20030031243
    Abstract: An adaptive antenna system includes N antennae, N forward equalizers operatively coupled to a respective one of the N antennae, and N processors performing a constant modulus algorithm (CMA) to thereby generate N respective control signals which adapt coefficients associated with each respective one of the forward equalizer. Preferably, the adaptive antenna system also includes a sampling device receiving a signal based on the collected output of the N forward equalizers, and a feedback equalizer receiving an output of the sampling device and generating a feedback signal biasing the signal received by the sampling device. If desired, the N control signals are applied to the N respective forward equalizers during a first operating mode, and a selected one of the N control signals is applied to the N forward equalizers during second mode of operation. A method of operating a beamforming antenna system is also described.
    Type: Application
    Filed: June 8, 2001
    Publication date: February 13, 2003
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Joseph Meehan, William A. Sethares
  • Publication number: 20020150185
    Abstract: An apparatus and method for improving signal reception in a signal receiver is disclosed. The apparatus comprises at least two first receiver chips, a digital combiner circuit and a single third receiver chip. At least two antennae are used to receive at least two signals, the signals are passed through front end section and equalizer of the first receiver chips, wherein the quality of the signals is evaluated. The signals are combined intelligently in the digital combiner circuit based on the quality of each signal. The combined result is fed into the decoder located in the back-end section of the singe third receiver chip.
    Type: Application
    Filed: March 29, 2001
    Publication date: October 17, 2002
    Inventors: Joseph Meehan, Patrick Kelliher, Gene Turkenich, Monisha Gosh