Patents by Inventor Michael J. Rudowicz
Michael J. Rudowicz 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: 8665778Abstract: A method (100) for limiting transmission power of a communication device (600) having a plurality of transceivers (610, 615). The method can include determining a desired maximum transmission power and determining a plurality of power contribution factors. Each of the power contribution factors can be associated with a respective one of the transceivers. The method also can include determining an expected transmission power based on, at least in part, a sum of the power contribution factors. Further, responsive to the expected transmission power exceeding the desired maximum transmission power, the power contribution for at least one of the transceivers can be selectively reduced or terminated.Type: GrantFiled: March 15, 2007Date of Patent: March 4, 2014Assignee: Motorola Mobility LLCInventors: John M. Burgan, Jose E. Korneluk, Michael J. Rudowicz
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Patent number: 8665779Abstract: A method (100) for limiting transmission power of a communication device (600) having a plurality of transceivers (610, 615). The method can include determining a desired maximum transmission power and determining a plurality of power contribution factors. Each of the power contribution factors can be associated with a respective one of the transceivers. The method also can include determining an expected transmission power based on, at least in part, a sum of the power contribution factors. Further, responsive to the expected transmission power exceeding the desired maximum transmission power, the power contribution for at least one of the transceivers can be selectively reduced or terminated.Type: GrantFiled: September 15, 2012Date of Patent: March 4, 2014Assignee: Motorola Mobility LLCInventors: John M. Burgan, Jose E. Korneluk, Michael J. Rudowicz
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Publication number: 20130012258Abstract: A method (100) for limiting transmission power of a communication device (600) having a plurality of transceivers (610, 615). The method can include determining a desired maximum transmission power and determining a plurality of power contribution factors. Each of the power contribution factors can be associated with a respective one of the transceivers. The method also can include determining an expected transmission power based on, at least in part, a sum of the power contribution factors. Further, responsive to the expected transmission power exceeding the desired maximum transmission power, the power contribution for at least one of the transceivers can be selectively reduced or terminated.Type: ApplicationFiled: September 15, 2012Publication date: January 10, 2013Applicant: MOTOROLA MOBILITY LLCInventors: JOHN M. BURGAN, JOSE E. KORNELUK, MICHAEL J. RUDOWICZ
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Patent number: 8055256Abstract: A method and system for selecting scanning rates in a multi-mode communication device is disclosed herein. The method can include the step of—at a multi-mode communication device—measuring at least one parameter associated with an interaction between a first network and the multi-mode communication device. The method can further include the step of—in response to measuring the parameter—selecting a scanning rate of the multi-mode communication device for a second, different network that interacts with the multi-mode communication device. In the method, the first network and the second network can have independent synchronization procedures.Type: GrantFiled: May 30, 2008Date of Patent: November 8, 2011Assignee: Motorola Mobility, Inc.Inventors: Michael J. Rudowicz, Bradley J. Rainbolt
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Publication number: 20090296652Abstract: A method and system for selecting scanning rates in a multi-mode communication device is disclosed herein. The method can include the step of—at a multi-mode communication device—measuring at least one parameter associated with an interaction between a first network and the multi-mode communication device. The method can further include the step of—in response to measuring the parameter—selecting a scanning rate of the multi-mode communication device for a second, different network that interacts with the multi-mode communication device. In the method, the first network and the second network can have independent synchronization procedures.Type: ApplicationFiled: May 30, 2008Publication date: December 3, 2009Applicant: MOTOROLA, INC.Inventors: MICHAEL J. RUDOWICZ, BRADLEY J. RAINBOLT
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Patent number: 7418040Abstract: A receiver 200 as a component in a wireless communication device 100 and a corresponding method are used for receiving a multi-carrier communication signal and determining a timing offset thereof. The receiver 200 comprises a controller 222 to perform a correlation on each of a plurality of sub-carriers comprising the multi-carrier signal to provide a plurality of timing offsets. A quality metric corresponding to each of the plurality of timing offsets may be employed to select the best timing offset. Alternatively, a set of timing offsets whose quality metric exceed a threshold may be averaged. Either the best or average timing offset is used for processing all the sub-carriers of the multi-carrier signal.Type: GrantFiled: May 30, 2003Date of Patent: August 26, 2008Assignee: Motorola, Inc.Inventors: Michael J. Rudowicz, Stephen S. Shiao, Patrick J. Doran
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Publication number: 20080130728Abstract: A method (100) for limiting transmission power of a communication device (600) having a plurality of transceivers (610, 615). The method can include determining a desired maximum transmission power and determining a plurality of power contribution factors. Each of the power contribution factors can be associated with a respective one of the transceivers. The method also can include determining an expected transmission power based on, at least in part, a sum of the power contribution factors. Further, responsive to the expected transmission power exceeding the desired maximum transmission power, the power contribution for at least one of the transceivers can be selectively reduced or terminated.Type: ApplicationFiled: March 15, 2007Publication date: June 5, 2008Applicant: MOTOROLA, INC.Inventors: John M. Burgan, Jose E. Korneluk, Michael J. Rudowicz
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Publication number: 20080056390Abstract: A mobile device (101) and method (200) for estimating a Doppler frequency is provided. The method can include receiving (202) a communication signal containing preambles (120) and pilots (125), identifying pilot locations (203), computing (204) an autocorrelation from the preambles and pilots, identifying (205) a zero-crossing of the autocorrelation, and calculating (206) the Doppler frequency from the zero-crossing. The autocorrelation uses a forward (410) and backward (420) computation of a preamble fading estimate and a pilot fading estimate that is averaged over a plurality of frames that is independent of pilot structure.Type: ApplicationFiled: August 29, 2006Publication date: March 6, 2008Applicant: MOTOROLA, INC.Inventors: BRADLEY J. RAINBOLT, MICHAEL J. RUDOWICZ
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Patent number: 7313188Abstract: A system, wireless device (102) and method reduce the peak-to-average power of a transmitter by creating at least two sampled carrier data streams, running each carrier through a separate delay block, mixing each carrier over in frequency an appropriate amount, resulting in at least two frequency division multiplexed signals, and combining the at least two frequency division multiplexed signals together. The four sampled carrier data streams may each have a bandwidth of 25 kHz. Each separate delay block is less than 20% of its corresponding symbol time. The transmitter may be used to transmit wideband integrated digitally enhanced network (WiDEN) signals.Type: GrantFiled: June 30, 2003Date of Patent: December 25, 2007Assignee: Motorola, Inc.Inventors: Stephen S. Shiao, Michael N. Kloos, Michael J. Rudowicz, Patrick J. Doran
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Publication number: 20040264586Abstract: A system, wireless device (102) and method reduce the peak-to-average power of a transmitter by creating at least two sampled carrier data streams, running each carrier through a separate delay block, mixing each carrier over in frequency an appropriate amount, resulting in at least two frequency division multiplexed signals, and combining the at least two frequency division multiplexed signals together. The four sampled carrier data streams may each have a bandwidth of 25 kHz. Each separate delay block is less than 20% of its corresponding symbol time. The transmitter may be used to transmit wideband integrated digitally enhanced network (WiDEN) signals.Type: ApplicationFiled: June 30, 2003Publication date: December 30, 2004Applicant: MOTOROLA, INC.Inventors: Stephen S. Shiao, Michael N. Kloos, Michael J. Rudowicz, Patrick J. Doran
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Patent number: 6069886Abstract: A two-way wireless selective call communication system (20) using a synchronous time division multiplex communication protocol transmits messages divided into a plurality of data units (120, 126, and 128) from a plurality of selective call transceivers (32) to a paging terminal (33) during time slots (78), the number of data units and the time slots are set by the paging terminal controller (26) based on information, including size of the message information, received in an unscheduled transmission from each of the plurality of selective call transceivers. The paging terminal transmits to a selective call transceiver a multi-bit acknowledgment message having a one-bit acknowledgment for each of the plurality of data units. A selective call transceiver re-transmits data units not recovered by the terminal based upon content of the acknowledgment message. More than one selective call transceiver transmit during a one time slot set by the terminal.Type: GrantFiled: December 22, 1997Date of Patent: May 30, 2000Inventors: Douglas I. Ayerst, Malik J. Khan, Michael J. Rudowicz
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Patent number: 5799012Abstract: A two-way wireless selective call communication system (20) using a synchronous time division multiplex communication protocol transmits messages divided into a plurality of data units (120, 126, and 128) from a plurality of selective call transceivers (32) to a paging terminal (33) during time slots (78), the number of data units and the time slots are set by the paging terminal controller (26) based on information, including size of the message information, received in an unscheduled transmission from each of the plurality of selective call transceivers. The paging terminal transmits to a selective call transceiver a multi-bit acknowledgment message having a one-bit acknowledgment for each of the plurality of data units. A selective call transceiver re-transmits data units not recovered by the terminal based upon content of the acknowledgment message. More than one selective call transceiver transmit during a one time slot set by the terminal.Type: GrantFiled: January 5, 1996Date of Patent: August 25, 1998Assignee: Motorola, Inc.Inventors: Douglas I. Ayerst, Malik J. Khan, Michael J. Rudowicz