Patents by Inventor David R. Maas

David R. Maas 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: 8079422
    Abstract: In certain embodiments a soil aerator may include a hinged frame assembly that cooperates with one or more weight transferring systems adapted to permit an aeration subassembly to lift off the ground when an aeration tine impacts a hard obstacle such as a rock in the soil. The weight transferring systems may in the preferred embodiments be calibrated so that only minimal upward force, such as that caused by impact of an aeration tine with a rock, may cause the aeration subassembly to lift thereby significantly reducing or preventing damage to the aeration tines and drive assemblies and substantially prolonging the life of the aerator.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: December 20, 2011
    Assignee: PlanetAir Turf Products, LLC
    Inventors: David R. Maas, Scott W. Bjorge
  • Patent number: 8051353
    Abstract: A method is described for providing Hybrid Automatic Repeat Request (HARQ) transmission feedback to a higher layer protocol in a communication system. The method includes a step of detecting HARQ retransmissions in a first layer protocol. This can be used to determine a HARQ failure or an HARQ ACK after a delay of some retransmissions. A next step includes providing feedback information about the detecting step from the first layer protocol to a higher layer protocol. A next step includes instituting corrections at the higher layer protocol, in response to the information transferred from the first layer protocol. These corrections can include immediate retransmission of those bursts of a HARQ failure, or correcting timers to match the delay of eventually ACK'ed data.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: November 1, 2011
    Assignee: Motorola Mobility, Inc.
    Inventors: David R. Maas, Ravi M. Adatrao, Pramod Karnam, Mark J. Marsan
  • Patent number: 8028758
    Abstract: A soil aeration device may include a plurality of arcuate blades mounted to an assembly adapted to rotate and translate the blades proximate a ground surface, thereby forming aeration pockets in the soil. In certain embodiments, the arcuate tines penetrate and fracture the soil while minimizing the amount of soil lifted from the pocket deposited on the top of the soil. In various embodiments, a planetary gear assembly imparts to the tine a translational and rotational movement which creates a fractured pocket in the soil while minimizing the amount of soil lifted from the pocket and deposited on the surface of the soil. In still other embodiments, the arcuate tine may have mounted thereon a coring tube that cuts and removes a plug from the pocket formed in the soil.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: October 4, 2011
    Assignee: PlanetAir Turf Products, LLC
    Inventors: David R. Maas, Scott W. Bjorge
  • Patent number: 7931094
    Abstract: A soil aeration device may include a plurality of arcuate blades mounted to an assembly adapted to rotate and translate the blades proximate a ground surface, thereby forming aeration pockets in the soil. In certain embodiments, the arcuate tines penetrate and fracture the soil while minimizing the amount of soil lifted from the pocket deposited on the top of the soil. In various embodiments, a planetary gear assembly imparts to the tine a translational and rotational movement which creates a fractured pocket in the soil while minimizing the amount of soil lifted from the pocket and deposited on the surface of the soil. In still other embodiments, the arcuate tine may have mounted thereon a coring tube that cuts and removes a plug from the pocket formed in the soil.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: April 26, 2011
    Assignee: PlanetAir Turf Products, LLC
    Inventors: David R. Maas, Scott W. Bjorge
  • Patent number: 7926582
    Abstract: A soil aeration apparatus may include aeration tines that are actuated by a relatively compact gear system that reduces the size and weight of the apparatus. In addition, a soil aeration apparatus may operate without a centrally disposed support shaft, thus enabling the tine-holder shafts to be positioned closer to one another and reducing the size of the apparatus.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: April 19, 2011
    Assignee: PlanetAir Turf Products, LLC
    Inventors: David R. Maas, Scott W. Bjorge
  • Patent number: 7896095
    Abstract: A soil aeration apparatus may include aeration tines that are actuated by a relatively compact gear system that reduces the size and weight of the apparatus. In addition, a soil aeration apparatus may operate without a centrally disposed support shaft, thus enabling the tine-holder shafts to be positioned closer to one another and reducing the size of the apparatus.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: March 1, 2011
    Assignee: PlanetAir Turf Products, LLC
    Inventors: David R. Maas, Scott W. Bjorge
  • Publication number: 20110011602
    Abstract: In certain embodiments a soil aerator may include a hinged frame assembly that cooperates with one or more weight transferring systems adapted to permit an aeration subassembly to lift off the ground when an aeration tine impacts a hard obstacle such as a rock in the soil. The weight transferring systems may in the preferred embodiments be calibrated so that only minimal upward force, such as that caused by impact of an aeration tine with a rock, may cause the aeration subassembly to lift thereby significantly reducing or preventing damage to the aeration tines and drive assemblies and substantially prolonging the life of the aerator.
    Type: Application
    Filed: August 23, 2010
    Publication date: January 20, 2011
    Applicant: PlanetAir Turf Products, LLC
    Inventors: David R. Maas, Scott W. Bjorge
  • Publication number: 20100303022
    Abstract: A method and scheduler are provided that optimize utilization of an uplink (UL) data packet field of an UL sub-frame. In one embodiment, a request for an allocation of bandwidth is received from each of multiple mobile stations. The requests include requests for a bandwidth allocation of a first size range and requests for a bandwidth allocation of a second size range, wherein each request of the second size range requests more bandwidth than any request of the first size range. Bandwidth is allocated in a UL data packet field to the requests in order of priority, and when the allocated bandwidth does not fill the UL data packet field and a request of the second size range remains unallocated, an allocation of bandwidth to an unallocated request of the second size range is substituted for an allocation of bandwidth to a request of the first size range.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 2, 2010
    Applicant: MOTOROLA, INC.
    Inventors: David R. Maas, Chen Mu
  • Publication number: 20100263887
    Abstract: A soil aeration apparatus may include aeration tines that are actuated by a relatively compact gear system that reduces the size and weight of the apparatus. In addition, a soil aeration apparatus may operate without a centrally disposed support shaft, thus enabling the tine-holder shafts to be positioned closer to one another and reducing the size of the apparatus.
    Type: Application
    Filed: June 30, 2010
    Publication date: October 21, 2010
    Applicant: PlanetAir Turf Products, LLC
    Inventors: David R. Maas, Scott W. Bjorge
  • Publication number: 20100263888
    Abstract: A soil aeration device may include a plurality of arcuate blades mounted to an assembly adapted to rotate and translate the blades proximate a ground surface, thereby forming aeration pockets in the soil. In certain embodiments, the arcuate tines penetrate and fracture the soil while minimizing the amount of soil lifted from the pocket deposited on the top of the soil. In various embodiments, a planetary gear assembly imparts to the tine a translational and rotational movement which creates a fractured pocket in the soil while minimizing the amount of soil lifted from the pocket and deposited on the surface of the soil. In still other embodiments, the arcuate tine may have mounted thereon a coring tube that cuts and removes a plug from the pocket formed in the soil.
    Type: Application
    Filed: June 28, 2010
    Publication date: October 21, 2010
    Applicant: PlanetAir Turf Products, LLC
    Inventors: Scott W. Bjorge, David R. Maas
  • Patent number: 7784557
    Abstract: A soil aeration apparatus may include aeration tines that are actuated by a relatively compact gear system that reduces the size and weight of the apparatus. In addition, a soil aeration apparatus may operate without a centrally disposed support shaft, thus enabling the tine-holder shafts to be positioned closer to one another and reducing the size of the apparatus.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: August 31, 2010
    Assignee: PlanetAir Turf Products, LLC
    Inventors: David R. Maas, Scott W. Bjorge
  • Publication number: 20100214995
    Abstract: An apparatus and method for communicating system information in a wireless communication network. A first step 200 includes defining unicast threshold parameter(s). A next step 201 includes receiving a request for system information. A next step 202, 204 includes determining if the system information exceeds the threshold parameter(s). A next step 206-216 includes scheduling an ad-hoc broadcast of the system information if the system information exceeds the threshold parameter(s). A next step 218 includes sending a pointer to the scheduled ad-hoc broadcast. A next step 220 includes broadcasting the network service provider information per the schedule.
    Type: Application
    Filed: February 25, 2009
    Publication date: August 26, 2010
    Applicant: MOTOROLA, INC.
    Inventors: Subramanian S. Iyer, Christopher R. Cushing, Ajakumar R. Idnani, David R. Maas, J. Chris Stanaway
  • Patent number: 7779929
    Abstract: In certain embodiments a soil aerator may include a hinged frame assembly that cooperates with one or more weight transferring systems adapted to permit an aeration subassembly to lift off the ground when an aeration tine impacts a hard obstacle such as a rock in the soil. The weight transferring systems may in the preferred embodiments be calibrated so that only minimal upward force, such as that caused by impact of an aeration tine with a rock, may cause the aeration subassembly to lift thereby significantly reducing or preventing damage to the aeration tines and drive assemblies and substantially prolonging the life of the aerator.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: August 24, 2010
    Assignee: PlanetAir Turf Products, LLC
    Inventors: David R. Maas, Scott W. Bjorge
  • Patent number: 7743841
    Abstract: A soil aeration device may include a plurality of arcuate blades mounted to an assembly adapted to rotate and translate the blades proximate a ground surface, thereby forming aeration pockets in the soil. In certain embodiments, the arcuate tines penetrate and fracture the soil while minimizing the amount of soil lifted from the pocket deposited on the top of the soil. In various embodiments, a planetary gear assembly imparts to the tine a translational and rotational movement which creates a fractured pocket in the soil while minimizing the amount of soil lifted from the pocket and deposited on the surface of the soil. In still other embodiments, the arcuate tine may have mounted thereon a coring tube that cuts and removes a plug from the pocket formed in the soil.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: June 29, 2010
    Assignee: PlanetAir Turf Products, LLC
    Inventors: David R. Maas, Scott W. Bjorge
  • Patent number: 7717188
    Abstract: A soil aeration apparatus may include aeration tines that are actuated by a relatively compact gear system that reduces the size and weight of the apparatus. In addition, a soil aeration apparatus may operate without a centrally disposed support shaft, thus enabling the tine-holder shafts to be positioned closer to one another and reducing the size of the apparatus.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: May 18, 2010
    Assignee: PlanetAir Turf Products, LLC
    Inventors: Scott W. Bjorge, David R. Maas
  • Publication number: 20100108334
    Abstract: A soil aeration device may include a plurality of arcuate blades mounted to an assembly adapted to rotate and translate the blades proximate a ground surface, thereby forming aeration pockets in the soil. In certain embodiments, the arcuate tines penetrate and fracture the soil while minimizing the amount of soil lifted from the pocket deposited on the top of the soil. In various embodiments, a planetary gear assembly imparts to the tine a translational and rotational movement which creates a fractured pocket in the soil while minimizing the amount of soil lifted from the pocket and deposited on the surface of the soil. In still other embodiments, the arcuate tine may have mounted thereon a coring tube that cuts and removes a plug from the pocket formed in the soil.
    Type: Application
    Filed: January 12, 2010
    Publication date: May 6, 2010
    Applicant: PLANETAIR TURF PRODUCTS, LLC
    Inventors: David R. Maas, Scott W. Bjorge
  • Publication number: 20100080176
    Abstract: A communication system performs adaptive scheduling by considering present and past reported CQI values and other indications of channel conditions in scheduling a Modulation and Coding Scheme (MCS) and then executing a ‘dithering’ function in order to effectuate an MCS that is intermediate between adjacent discrete MCSs. In one embodiment, the communication system determines a first MCS based on a channel quality metric received from a mobile station (MS) and then transmits data utilizing the first MCS. The communication system assigns weights to each of the first MCS and a second MCS based on whether the transmitted data is acknowledged and, based on the assigned weights, selects one of the first and second MCSs for a subsequent transmission of data to the MS. The communication system also may assign weights to each of a first and second MCS based on a transition between a MIMO-A and a MIMO-B transmission scheme.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 1, 2010
    Applicant: MOTOROLA, INC.
    Inventors: David R. Maas, Jun Wang, Timothy J. Wilson
  • Patent number: 7669666
    Abstract: A soil aeration device may include a plurality of arcuate blades mounted to an assembly adapted to rotate and translate the blades proximate a ground surface, thereby forming aeration pockets in the soil. In certain embodiments, the arcuate tines penetrate and fracture the soil while minimizing the amount of soil lifted from the pocket deposited on the top of the soil. In various embodiments, a planetary gear assembly imparts to the tine a translational and rotational movement which creates a fractured pocket in the soil while minimizing the amount of soil lifted from the pocket and deposited on the surface of the soil. In still other embodiments, the arcuate tine may have mounted thereon a coring tube that cuts and removes a plug from the pocket formed in the soil.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: March 2, 2010
    Assignee: PlanetAir Turf Products, LLC
    Inventors: David R. Maas, Scott W. Bjorge
  • Patent number: 7640994
    Abstract: A soil aeration device may include a plurality of arcuate blades mounted to an assembly adapted to rotate and translate the blades proximate a ground surface, thereby forming aeration pockets in the soil. In certain embodiments, the arcuate tines penetrate and fracture the soil while minimizing the amount of soil lifted from the pocket deposited on the top of the soil. In various embodiments, a planetary gear assembly imparts to the tine a translational and rotational movement which creates a fractured pocket in the soil while minimizing the amount of soil lifted from the pocket and deposited on the surface of the soil. In still other embodiments, the arcuate tine may have mounted thereon a coring tube that cuts and removes a plug from the pocket formed in the soil.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: January 5, 2010
    Assignee: PlanetAir Turf Products, LLC
    Inventors: David R. Maas, Scott W. Bjorge
  • Patent number: 7575063
    Abstract: Certain embodiments of the invention include an aerator that provides a shifting means adapted to alter the path of the aeration tines so that they do not impact the ground surface, the shifting being effected without lifting the entire aerator from the ground surface.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: August 18, 2009
    Assignee: PlanetAir Turf Products, LLC
    Inventors: David R. Maas, Scott W. Bjorge