Patents by Inventor John David Kaewell, Jr.
John David Kaewell, Jr. 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: 7929409Abstract: A method and apparatus for protecting and authenticating wirelessly transmitted digital information using numerous techniques. The apparatus may be a wireless orthogonal frequency division multiplexing (OFDM) communication system, a base station, a wireless transmit/receive unit (WTRU), a transmitter, a receiver and/or an integrated circuit (IC). The wireless OFDM communication system includes a transmitter which steganographically embeds digital information in an OFDM communication signal and wirelessly transmits the OFDM communication signal. The system further includes a receiver which receives the OFDM communication signal and extracts the steganographically embedded digital information from the received OFDM communication signal.Type: GrantFiled: January 13, 2005Date of Patent: April 19, 2011Assignee: InterDigital Technology CorporationInventors: Prabhakar R. Chitrapu, John David Kaewell, Jr., Robert Lind Olesen, Sung-Hyuk Shin, John Erich Hoffmann, Richard Dan Herschaft
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Patent number: 7706833Abstract: A unified dual-mode global system for mobile communication (GSM)/universal mobile telecommunication systems (UMTS) clock and a transceiver employing the unified GSM/UMTS clock are disclosed. A reference clock generates a reference clock signal and a local oscillator (LO) generates a LO signal based on the reference clock signal. A frequency divider selectively generates either a GSM clock signal or a UMTS clock signal by converting a frequency of the LO signal by a predetermined factor. Both the GSM clock signal and the UMTS clock signal are generated based on the common reference clock signal. The reference clock signal frequency may be a GSM fundamental frequency or a UMTS fundamental frequency. An interpolator and/or a decimator may be used for matching frequencies of UMTS baseband signal and the UMTS clock signal or frequencies of GSM baseband signal and the GSM clock signal.Type: GrantFiled: May 15, 2006Date of Patent: April 27, 2010Assignee: InterDigital Technology CorporationInventor: John David Kaewell, Jr.
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Patent number: 7706435Abstract: Apparatus and method for correlating a received communication of a known sequence over a wireless channel through the use of a finite impulse response (FIR) filter having a small number of taps to reduce hardware requirement by as much as one-half that of conventional techniques while obtaining amplitude degradation which is no worse than experienced when employing conventional techniques.Type: GrantFiled: April 7, 2004Date of Patent: April 27, 2010Assignee: InterDigital Technology CorporationInventors: Jan Meyer, Peter Bohnhoff, John David Kaewell, Jr., Alexander Reznik
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Patent number: 7630690Abstract: A Node-B/base station has an access burst detector. The access burst detector comprises at least one antenna for receiving signals from users and a pool of reconfigurable correlators. Each correlator correlates an inputted access burst code at an inputted code phase with an inputted antenna output. An antenna controller selectively couples any output of the at least one antenna to an input of any of the correlators. A code controller provides to an input of each correlator an access burst code. The code controller controls the inputted code phase of each controller. A sorter/post processor sorts output energy levels of the correlators.Type: GrantFiled: April 11, 2003Date of Patent: December 8, 2009Assignee: InterDigital Technology Corp.Inventors: John David Kaewell, Jr., Timothy Berghuis, Jan Meyer, Peter Bohnhoff, Alexander Reznik, Edward L. Hepler, Michael Koch, William C. Hackett, David S. Bass, Steven Ferrante
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Patent number: 7570689Abstract: A receiver or an integrated circuit (IC) incorporated therein includes a fast Fourier transform (FFT)-based (or hybrid FFT-based) sliding window block level equalizer (BLE) for generating equalized samples. The BLE includes a noise power estimator, first and second channel estimators, an FFT-based chip level equalizer (CLEQ) and a channel monitor unit. The noise power estimator generates a noise power estimate based on two diverse sample data streams. The channel estimators generate respective channel estimates based on the sample data streams. The channel monitor unit generates a first channel monitor signal including truncated channel estimate vectors based on the channel estimates, and a second channel monitor signal which indicates an approximate rate of change of the truncated channel estimate vectors. The FFT-based CLEQ generates the equalized samples based on the noise power estimate, one-block samples of the first and second sample data streams, the channel estimates and the monitor signals.Type: GrantFiled: September 29, 2005Date of Patent: August 4, 2009Assignee: InterDigital Technology CorporationInventors: Bin Li, Robert A. DiFazio, Jung-Lin Pan, Alexander Reznik, John David Kaewell, Jr., Peter Edward Becker
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Publication number: 20090190645Abstract: A receiver or an integrated circuit (IC) incorporated therein includes a fast Fourier transform (FFT)-based (or hybrid FFT-based) sliding window block level equalizer (BLE) for generating equalized samples. The BLE includes a noise power estimator, first and second channel estimators, an FFT-based chip level equalizer (CLEQ) and a channel monitor unit. The noise power estimator generates a noise power estimate based on two diverse sample data streams. The channel estimators generate respective channel estimates based on the sample data streams. The channel monitor unit generates a first channel monitor signal including truncated channel estimate vectors based on the channel estimates, and a second channel monitor signal which indicates an approximate rate of change of the truncated channel estimate vectors. The FFT-based CLEQ generates the equalized samples based on the noise power estimate, one-block samples of the first and second sample data streams, the channel estimates and the monitor signals.Type: ApplicationFiled: April 7, 2009Publication date: July 30, 2009Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Bin Li, Robert A. DiFazio, Jung-Lin Pan, Alexander Reznik, John David Kaewell, JR., Peter Edward Becker
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Patent number: 7415043Abstract: A spread spectrum method and apparatus for protecting and authenticating wirelessly transmitted digital information using numerous techniques. The apparatus may be a wireless code division multiple access (CDMA) communication system, a base station, a wireless transmit/receive unit (WTRU), a transmitter, a receiver and/or an integrated circuit (IC). The wireless CDMA communication system includes a transmitter which steganographically embeds digital information in a CDMA communication signal and wirelessly transmits the CDMA communication signal. The system further includes a receiver which receives the CDMA communication signal and extracts the steganographically embedded digital information from the received CDMA communication signal.Type: GrantFiled: January 13, 2005Date of Patent: August 19, 2008Assignee: InterDigital Technology CorporationInventors: John David Kaewell, Jr., Prabhakar R. Chitrapu, Robert Lind Olesen, Sung-Hyuk Shin, John Erich Hoffmann, Alexander Reznik
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Patent number: 7395055Abstract: A method for controlling the communications of a wireless transmit/receive unit (WTRU) in a wireless network using presence and situation information begins by generating presence and situation information pertaining to the WTRU. The presence and situation data is stored and, subsequently, retrieved upon receipt of a communication at the WTRU. The communication settings of the WTRU are adjusted by using the presence and situation information.Type: GrantFiled: August 29, 2005Date of Patent: July 1, 2008Assignee: InterDigital Technology CorporationInventors: Prabhakar R. Chitrapu, John David Kaewell, Jr.
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Patent number: 7304374Abstract: At least one semiconductor die is equipped with at least one RF transmitter, RF receiver and/or RF transceiver. This enables one or more RF links to be established with the die, enabling communications with the die to be effected with reduced or no wirebond or other physical connections. In another aspect of the invention, a source die with RF communication capability communicates with a target die by establishing an RF link with an intermediate RF device. The intermediate RF device has a physical connection, either directly to the target die, or to the substrate which they share, which allows the source die to communicate with the target die. The source and target dies may be on the same or on different substrates. This enables the use of multiple semiconductor dies and substrates in a manner which reduces the required physical connections between them.Type: GrantFiled: July 7, 2005Date of Patent: December 4, 2007Assignee: InterDigital Technology CorporationInventor: John David Kaewell, Jr.
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Patent number: 7106819Abstract: A wireless digital telephone system containing at least one emulated base station plus one or more subscriber stations, the emulated base station comprising a station similar to the subscriber station but having the capability of initiating a synchronization process whereby it is enabled to assign time slots to the subscriber station within the frame pattern of an amplitude signal by means of monitoring for positive edges in the signal.Type: GrantFiled: July 19, 1999Date of Patent: September 12, 2006Assignee: InterDigital Technology CorporationInventors: John David Kaewell, Jr., Scott David Kurtz
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Patent number: 7092432Abstract: A Node-B/base station receiver comprises at least one antenna for receiving signals. Each finger of a pool of reconfigurable Rake fingers recovers a multipath component of a user and is assigned a code of the user, a code phase of the multipath component and an antenna of the at least one antenna. An antenna/Rake finger pool interface provides each finger of the Rake pool an output of the antenna assigned to that Rake finger. A combiner combines the recovered multipath components for a user to produce data of the user.Type: GrantFiled: May 4, 2004Date of Patent: August 15, 2006Assignee: InterDigital Technology CorporationInventors: John David Kaewell, Jr., Timothy Berghius, Jan Meyer, Peter Bohnhoff, Alexander Reznik, Edward Hepler, Michael Koch, William C. Hackett, David S. Bass, Clyde N. Robbins
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Patent number: 7082286Abstract: A Node-B/base station has a path searcher and at least one antenna for receiving signals from users. The path searcher comprises a set of correlators. Each correlator correlates an inputted user code with an inputted antenna output of the at least one antenna. An antenna controller selectively couples any output of the at least one antenna to an input of each correlator of the set of correlators. A code phase controller selects a user code for input into the set of correlators. Each delay of a series of delays delays the selected user code by a predetermined amount and each correlator of the set of correlators receives a different code phase delay of the selected user code. A sorter and path selector sorts the output energy levels of each correlator of the sets of correlators and produces a path profile for a user based on the sorted output energy levels.Type: GrantFiled: April 11, 2003Date of Patent: July 25, 2006Assignee: InterDigital Technology CorporationInventors: John David Kaewell, Jr., Timothy Berghuis, Jan Meyer, Peter Bohnhoff, Alexander Reznik, Edward L. Hepler, Michael Koch, William C. Hackett, David S. Bass, Steven Ferrante
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Patent number: 6968185Abstract: A method for adjusting the operating parameters of a wireless device for use in a wireless communication network begins by entering and storing situation settings. When a communication is received at the network for the wireless device, the presence of the wireless device is determined. The situation settings are applied based upon the presence of the wireless device. The wireless device is informed of the communication via the applied situation settings.Type: GrantFiled: December 18, 2003Date of Patent: November 22, 2005Assignee: InterDigital Technology CorporationInventors: Prabhakar R. Chitrapu, John David Kaewell, Jr.
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Patent number: 6953994Abstract: A multi-chip module (MCM) includes a plurality of semiconductor dies within a single package. RF transceivers on two or more of the dies provide inter-chip communications between the dies permitting the establishment of communications without requiring that hardwire connections be established for each signal connection.Type: GrantFiled: December 31, 2003Date of Patent: October 11, 2005Assignee: InterDigital Technology CorporationInventor: John David Kaewell, Jr.
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Patent number: 6792037Abstract: Apparatus and method for correlating a received communication of a known sequence over a wireless channel through the use of a finite impulse response (FIR) filter having a small number of taps to reduce hardware requirement by as much as one-half that of conventional techniques while obtaining amplitude degradation which is no worse than experienced when employing conventional techniques.Type: GrantFiled: December 18, 2002Date of Patent: September 14, 2004Assignee: InterDigital Technology CorporationInventors: Jan Meyer, Peter Bohnhoff, John David Kaewell, Jr., Alexander Reznik
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Patent number: 6785322Abstract: A Node-B/base station receiver comprises at least one antenna for receiving signals. Each finger of a pool of reconfigurable Rake fingers recovers a multipath component of a user and is assigned a code of the user, a code phase of the multipath component and an antenna of the at least one antenna. An antenna/Rake finger pool interface provides each finger of the Rake pool an output of the antenna assigned to that Rake finger. A combiner combines the recovered multipath components for a user to produce data of the user.Type: GrantFiled: December 27, 2002Date of Patent: August 31, 2004Assignee: InterDigital Technology CorporationInventors: John David Kaewell, Jr., Timothy Berghuis, Jan Meyer, Peter Bohnhoff, Alexander Reznik, Edward Hepler, Michael Koch, William C. Hackett, David S. Bass, Clyde N. Robbins
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Patent number: 6711223Abstract: A wireless digital telephone system containing at least one emulated base station plus one or more subscriber stations, the emulated base station comprising a station similar to the subscriber station but having the capability of initiating a synchronization process whereby it is enabled to assign time slots to the subscriber station within the frame pattern of an amplitude signal by means of monitoring for positive edges in the signal.Type: GrantFiled: February 23, 2001Date of Patent: March 23, 2004Assignee: InterDigital Technology CorporationInventors: John David Kaewell, Jr., Scott David Kurtz
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Patent number: 5930297Abstract: A wireless digital telephone system containing at least one emulated base station plus one or more subscriber stations, the emulated base station comprising a station similar to the subscriber station but having the capability of initiating a synchronization process whereby it is enabled to assign time slots to the subscriber station within the frame pattern of an amplitude signal by means of monitoring for positive edges in the signal.Type: GrantFiled: February 7, 1997Date of Patent: July 27, 1999Assignee: InterDigital Technology CorporationInventors: John David Kaewell, Jr., Scott David Kurtz