Patents by Inventor Gary R. Lomp
Gary R. Lomp 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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Publication number: 20030179819Abstract: A modem is configured for demodulating a communication signal associated with a unique code-division multiple access (CDMA) code. The modem includes an adaptive matched filter and a vector correlator. The vector correlator generates filter coefficients for the adaptive matched filter based on signal distortion determined by the vector correlator. The vector correlator has a processing capacity of at least eleven chips whereby the vector correlator compensates for a known phase distortion and for multipath distortion ascertainable within its processing capacity. The adaptive matched filter processes communication signals with the unique CDMA code using coefficients generated by the vector correlator.Type: ApplicationFiled: April 16, 2003Publication date: September 25, 2003Applicant: InterDigital Technology CorporationInventors: Gary R. Lomp, Leonid Kazakevich, Jeffrey S. Polan, David K. Mesecher
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Patent number: 6611548Abstract: A multipath processor processes a plurality of groups of spread-spectrum signals. Each group has a plurality of spread-spectrum signals. A first plurality of spread-spectrum signals is despread within a first group to generate a first plurality of despread signals. The first plurality of despread signals are combined as a first combined-despread signal. A second plurality of spread-spectrum signals is despread within a second group to generate a second plurality of despread signals. The second plurality of despread signals are combined as a second combined-despread signal. The first and second combined-despread signal are combined as an output-despread signal.Type: GrantFiled: October 19, 2001Date of Patent: August 26, 2003Assignee: InterDigital Technology CorporationInventor: Gary R. Lomp
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Patent number: 6606503Abstract: An apparatus for controlling transmission power during the establishment of a channel in a CDMA communication system utilizes the transmission of a short code from a subscriber unit to a base station during initial power ramp-up. The short code is a sequence for detection by the base station which has a much shorter period than a conventional spreading code. The ramp-up starts from a power level that is lower than the required power level for detection by the base station. The subscriber unit quickly increases transmission power while repeatedly transmitting the short code until the signal is detected by the base station. Once the base station detects the short code, it sends an indication to the subscriber unit to cease increasing transmission power. The use of short codes limits power overshoot and interference to other subscriber units and permits the base station to quickly synchronize to the spreading code used by the subscriber unit.Type: GrantFiled: August 2, 2002Date of Patent: August 12, 2003Assignee: Interdigital Technology CorporationInventors: Fatih M. Ozluturk, Gary R. Lomp
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Patent number: 6584091Abstract: A CDMA base station includes an antenna system having multiple antennas and delay units for receiving a transmitted signal and outputting a combined signal having a known distortion imparted by the antenna system. The combined signal is in turn processed by a modem, which compensates for the known distortion in a manner which provides improved signal gain. The improved signal gain permits a reduction in transmit power and, accordingly, increased capacity of the base station. Where the antenna system is to be remotely located from related signal processing equipment, separate units for the RF receiver/transmitter and the other signal processing equipment are provided so that the RF receiver/transmitter may also be remotely located along with the antenna system.Type: GrantFiled: October 15, 2002Date of Patent: June 24, 2003Assignee: Interdigital Technology CorporationInventors: Gary R. Lomp, Leonid Kazakevich, Jeffrey S. Polan, David K. Mesecher
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Patent number: 6577876Abstract: A base station for controlling transmission power during the establishment of a communication channel utilizes the reception of a short code during initial power ramp-up. The short code is a sequence for detection by the base station which has a much shorter period than a conventional access code. The ramp-up starts from a power level that is lower than the required power level for detection by the base station. The power of the short code is quickly increased until the signal is detected by the base station. Once the base station detects the short code, it transmits an indication that the short code has been detected.Type: GrantFiled: March 1, 2002Date of Patent: June 10, 2003Assignee: InterDigital Technology CorporationInventors: Fatih M. Ozluturk, Gary R. Lomp
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Patent number: 6571105Abstract: A method employed by a base station for controlling transmission power during the establishment of a communication channel utilizes the reception of a short code during initial power ramp-up. The short code is a sequence for detection by the base station which has a much shorter period than a conventional access code. The ramp-up starts from a power level that is lower than the required power level for detection by the base station. The power of the short code is quickly increased until the signal is detected by the base station. Once the base station detects the short code, it transmits an indication that the short code has been detected.Type: GrantFiled: March 1, 2002Date of Patent: May 27, 2003Assignee: Interdigital Technology CorporationInventors: Fatih M. Ozluturk, Gary R. Lomp
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Publication number: 20030043776Abstract: A CDMA base station includes an antenna system having multiple antennas and delay units for receiving a transmitted signal and outputting a combined signal having a known distortion imparted by the antenna system. The combined signal is in turn processed by a modem, which compensates for the known distortion in a manner which provides improved signal gain. The improved signal gain permits a reduction in transmit power and, accordingly, increased capacity of the base station. Where the antenna system is to be remotely located from related signal processing equipment, separate units for the RF receiver/transmitter and the other signal processing equipment are provided so that the RF receiver/transmitter may also be remotely located along with the antenna system.Type: ApplicationFiled: October 15, 2002Publication date: March 6, 2003Applicant: InterDigital Technology CorporationInventors: Gary R. Lomp, Leonid Kazakevich, Jeffrey S. Polan, David K. Mesecher
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Patent number: 6519474Abstract: A subscriber unit for controlling transmission power during the establishment of a communication channel utilizes the transmission of a short code during initial power ramp-up. The short code is a sequence which has a much shorter period than a conventional access code. The ramp-up starts from an initial power level which is quickly increased, while repeatedly transmitting the short code until a detection signal is received by the base station. The use of short codes limits power overshoot and interference.Type: GrantFiled: March 1, 2002Date of Patent: February 11, 2003Assignee: InterDigital Technology CorporationInventors: Fatih M. Ozluturk, Gary R. Lomp
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Patent number: 6507745Abstract: An apparatus for controlling transmission power during the establishment of a channel in a CDMA communication system utilizes the transmission of a short code from a subscriber unit to a base station during initial power ramp-up. The short code is a sequence for detection by the base station which has a much shorter period than a conventional spreading code. The ramp-up starts from a power level that is lower than the required power level for detection by the base station. The subscriber unit quickly increases transmission power while repeatedly transmitting the short code until the signal is detected by the base station. Once the base station detects the short code, it sends an indication to the subscriber unit to cease increasing transmission power. The use of short codes limits power overshoot and interference to other subscriber units and permits the base station to quickly synchronize to the spreading code used by the subscriber unit.Type: GrantFiled: March 1, 2002Date of Patent: January 14, 2003Assignee: InterDigital Technology CorporationInventors: Fatih M. Ozluturk, Gary R. Lomp
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Publication number: 20020187797Abstract: An apparatus for controlling transmission power during the establishment of a channel in a CDMA communication system utilizes the transmission of a short code from a subscriber unit to a base station during initial power ramp-up. The short code is a sequence for detection by the base station which has a much shorter period than a conventional spreading code. The ramp-up starts from a power level that is lower than the required power level for detection by the base station. The subscriber unit quickly increases transmission power while repeatedly transmitting the short code until the signal is detected by the base station. Once the base station detects the short code, it sends an indication to the subscriber unit to cease increasing transmission power. The use of short codes limits power overshoot and interference to other subscriber units and permits the base station to quickly synchronize to the spreading code used by the subscriber unit.Type: ApplicationFiled: August 2, 2002Publication date: December 12, 2002Applicant: InterDigital Technology CorporationInventors: Fatih M. Ozluturk, Gary R. Lomp
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Publication number: 20020187748Abstract: A method of controlling transmission power during the establishment of a channel in a CDMA communication system utilizes the transmission of a short code from a subscriber unit to a base station during initial power ramp-up. The short code is a sequence for detection by the base station which has a much shorter period than a conventional spreading code. The ramp-up starts from a power level that is lower than the required power level for detection by the base station. The subscriber unit quickly increases transmission power while repeatedly transmitting the short code until the signal is detected by the base station. Once the base station detects the short code, it sends an indication to the subscriber unit to cease increasing transmission power. The use of short codes limits power overshoot and interference to other subscriber units and permits the base station to quickly synchronize to the spreading code used by the subscriber unit.Type: ApplicationFiled: August 2, 2002Publication date: December 12, 2002Applicant: InterDigital Technology CorporationInventors: Fatih M. Ozluturk, Gary R. Lomp
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Publication number: 20020186669Abstract: A subscriber unit for controlling transmission power during the establishment of a communication channel utilizes the transmission of a short code during initial power ramp-up. The short code is a sequence which has a much shorter period than a conventional access code. The ramp-up starts from an initial power level which is quickly increased, while repeatedly transmitting the short code until a detection signal is received by the base station. The use of short codes limits power overshoot and interference.Type: ApplicationFiled: August 2, 2002Publication date: December 12, 2002Applicant: InterDigital Technology CorporationInventors: Fatih M. Ozluturk, Gary R. Lomp
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Patent number: 6493563Abstract: A system and method of controlling transmission power during the establishment of a channel in a CDMA communication system utilize the transmission of a short code from a subscriber unit to a base station during initial power ramp-up. The short code is a sequence for detection by the base station which has a much shorter period than a conventional spreading code. The ramp-up starts from a power level that is guaranteed to be lower than the required power level for detection by the base station. The subscriber unit quickly increases transmission power while repeatedly transmitting the short code until the signal is detected by the base station. Once the base station detects the short code, it sends an indication to the subscriber unit to cease increasing transmission power. The use of short codes limits power overshoot and interference to other subscriber stations and permits the base station to quickly synchronize to the spreading code used by the subscriber unit.Type: GrantFiled: November 22, 2000Date of Patent: December 10, 2002Assignee: InterDigital Technology CorporationInventors: Fatih M. Ozluturk, Gary R. Lomp
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Patent number: 6490462Abstract: A method of controlling transmission power during the establishment of a channel in a CDMA communication system utilizes the transmission of a short code from a subscriber unit to a base station during initial power ramp-up. The short code is a sequence for detection by the base station which has a much shorter period than a conventional spreading code. The ramp-up starts from a power level that is lower than the required power level for detection by the base station. The subscriber unit quickly increases transmission power while repeatedly transmitting the short code until the signal is detected by the base station. Once the base station detects the short code, it sends an indication to the subscriber unit to cease increasing transmission power. The use of short codes limits power overshoot and interference to other subscriber units and permits the base station to quickly synchronize to the spreading code used by the subscriber unit.Type: GrantFiled: March 1, 2002Date of Patent: December 3, 2002Assignee: InterDigital Technology CorporationInventors: Fatih M. Ozluturk, Gary R. Lomp
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Patent number: 6466567Abstract: A CDMA base station includes an antenna system having multiple antennas and delay units for receiving a transmitted signal and outputting a combined signal having a known distortion imparted by the antenna system. The combined signal is in turn processed by a modem, which compensates for the known distortion in a manner which provides improved signal gain. The improved signal gain permits a reduction in transmit power and, accordingly, increased capacity of the base station. Where the antenna system is to be remotely located from related signal processing equipment, separate units for the RF receiver/transmitter and the other signal processing equipment are provided so that the RF receiver/transmitter may also be remotely located along with the antenna system.Type: GrantFiled: February 11, 2002Date of Patent: October 15, 2002Assignee: InterDigital Technology CorporationInventors: Gary R. Lomp, Leonid Kazakevich, Jeffrey S. Polan, David K. Mesecher
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Publication number: 20020141478Abstract: A multiple access, spread-spectrum communication system processes a plurality of information signals received by a radio carrier station over telecommunication lines for simultaneous transmission over a radio frequency channel as a code-division-multiplexed signal to a group of subscriber units. The radio carrier station receives a call request signal that corresponds to a telecommunication line information signal, and a user identification signal that identifies a user to receive the call. The radio carrier station includes a plurality of CDMA modems, one of which provides a global pilot code signal. The modems provide message code signals synchronized to the global pilot signal. Each modem combines an information signal with a message code signal to provide a code division multiplexed signal. The RCS includes a system channel controller is coupled to receive a remote call.Type: ApplicationFiled: December 21, 2000Publication date: October 3, 2002Inventors: Fatih M. Ozluturk, Gary R. Lomp, John Kowalski
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Patent number: 6456608Abstract: A pilot adaptive vector correlator for estimating channel-impulse response and for obtaining a reference value of received multipath signals in a spread-spectrum system. A code generator generates a plurality of replicas of a pilot-spreading-code signal, with each replica of the pilot-spreading-code signal having a different phase from other replicas in a plurality of replicas of pilot-spreading-code signals. Each correlator in a plurality of correlators uses a replica of the pilot-spreading-code signal with a different phase from the other correlators in the plurality of correlators. The plurality of correlators correlates the spread-spectrum signal with the plurality of replicas of the pilot-spreading-code signals.Type: GrantFiled: January 18, 2001Date of Patent: September 24, 2002Assignee: InterDigital Technology CorporationInventor: Gary R. Lomp
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Patent number: 6452918Abstract: A CDMA subscriber unit includes an antenna system having multiple antennas and delay units for receiving a transmitted signal and outputting a combined signal having a known distortion imparted by the antenna system. The combined signal is in turn processed by a modem, which compensates for the known distortion in a manner which provides improved signal gain. The improved signal gain permits a reduction in transmit power and, accordingly, increased capacity of the base station. Where the antenna system is to be remotely located from related signal processing equipment, separate units for the RF receiver/transmitter and the other signal processing equipment are provided so that the RF receiver/transmitter may also be remotely located along with the antenna system.Type: GrantFiled: February 11, 2002Date of Patent: September 17, 2002Assignee: InterDigital Technology CorporationInventors: Gary R. Lomp, Leonid Kazarkevich, Jeffrey S. Polan, David K. Mesecher
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Publication number: 20020122460Abstract: A system and method for adaptive power control of a spread spectrum transmitter of a mobile unit operating in a cellular-communications network having a plurality of mobile units in communication with a base station. In response to a received signal from the mobile unit, the received signal having a first spread-spectrum signal and an interfering signal, an automatic gain control (AGC) circuit within the base station generates an AGC-output signal which is despread by a base despreader and then processed as a received-power level. A power command signal is generated using a threshold test and the received-power level. The power command signal is transmitted to the mobile station as a second spread-spectrum signal. The mobile station despreader despreads the second spread-spectrum signal as a power adjust signal and, responsive to the power adjust signal, increases or decreases the power level of the first spread spectrum signal.Type: ApplicationFiled: February 7, 2002Publication date: September 5, 2002Applicant: InterDigital Technology CorporationInventor: Gary R. Lomp
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Publication number: 20020122512Abstract: In response to the base station receiving a received signal, the received signal having a first spread-spectrum signal and an interfering signal. An automatic gain control (AGC) circuit generates an AGC-output signal which is despread by a despreader and then processed as a received-power level. A power command signal is generated using a threshold test and the received-power level.Type: ApplicationFiled: February 7, 2002Publication date: September 5, 2002Applicant: InterDigital Technology CorporationInventor: Gary R. Lomp