Patents by Inventor Ingo Kuhn
Ingo Kuhn 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: 7187743Abstract: A technique for performing a frequency error correction process is provided that may be used in receivers of wireless local area network systems. The technique comprises a three-phase process generating a frequency approximation value based on a frequency error estimate, starting a channel estimation process that uses the generated frequency approximation value, refining the generated frequency approximation value, and compensating a frequency error using the refined frequency approximation value. Further, a corresponding integrated circuit chip and an operation method are provided. Using the technique for performing a frequency error correction process may provide high reliability, high precision and improved operation speed.Type: GrantFiled: December 20, 2002Date of Patent: March 6, 2007Assignee: Advanced Micro Devices, Inc.Inventors: Eric Sachse, Jörg Borowski, Ingo Kühn
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Patent number: 7184496Abstract: A complementary code decoder technique is provided where the encoded input data is first parallelized. From the parallelized data, correlation values are generated by a correlator circuit that is capable of changing its correlation characteristics depending on at least one control signal. Different control signals are sequentially provided to the correlator circuit thereby driving the correlator circuit to sequentially generate multiple correlation values from the parallelized data, based on different correlation characteristics. From the multiple correlation values, the correlation value that represents the optimum correlation is identified. This technique significantly reduces the gate count of the decoder structure, thus saving chip area and manufacturing costs.Type: GrantFiled: June 19, 2003Date of Patent: February 27, 2007Assignee: Advanced Micro Devices, Inc.Inventors: Uwe Eckhardt, Eric Sachse, Ingo Kühn
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Patent number: 7167535Abstract: A WLAN (Wireless Local Area Network) receiver with a synchronization unit is provided, wherein the synchronization unit comprises a frequency error correction unit configured to perform a frequency error correction process, a phase error correction unit configured to perform a phase error correction process, a filter circuit capable of applying one of at least two different filter transfer functions, wherein a first one of said at least two different filter transfer functions is a frequency error correction filter transfer function for use in said frequency error correction process and a second one of said at least two different filter transfer functions is a phase error correction filter transfer function for use in said phase error correction process, and a controller unit connected to said filter circuit to select one of said at least two different filter transfer functions.Type: GrantFiled: December 20, 2002Date of Patent: January 23, 2007Assignee: Advanced Micro Devices, Inc.Inventors: Eric Sachse, Uwe Eckhardt, Ingo Kühn
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Publication number: 20040086062Abstract: A complementary code decoder technique is provided where the encoded input data is first parallelized. From the parallelized data, correlation values are generated by a correlator circuit that is capable of changing its correlation characteristics depending on at least one control signal. Different control signals are sequentially provided to the correlator circuit thereby driving the correlator circuit to sequentially generate multiple correlation values from the parallelized data, based on different correlation characteristics. From the multiple correlation values, the correlation value that represents the optimum correlation is identified. This technique significantly reduces the gate count of the decoder structure, thus saving chip area and manufacturing costs.Type: ApplicationFiled: June 19, 2003Publication date: May 6, 2004Applicant: Advanced Micro Devices, Inc.Inventors: Uwe Eckhardt, Eric Sachse, Ingo Kuhn
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Publication number: 20040086070Abstract: A WLAN (Wireless Local Area Network) receiver with a synchronization unit is provided, wherein the synchronization unit comprises a frequency error correction unit configured to perform a frequency error correction process, a phase error correction unit configured to perform a phase error correction process, a filter circuit capable of applying one of at least two different filter transfer functions, wherein a first one of said at least two different filter transfer functions is a frequency error correction filter transfer function for use in said frequency error correction process and a second one of said at least two different filter transfer functions is a phase error correction filter transfer function for use in said phase error correction process, and a controller unit connected to said filter circuit to select one of said at least two different filter transfer functions.Type: ApplicationFiled: December 20, 2002Publication date: May 6, 2004Inventors: Eric Sachse, Uwe Eckhardt, Ingo Kuhn
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Publication number: 20040062335Abstract: A technique for performing a frequency error correction process is provided that may be used in receivers of wireless local area network systems. The technique comprises a three-phase process generating a frequency approximation value based on a frequency error estimate, starting a channel estimation process that uses the generated frequency approximation value, refining the generated frequency approximation value, and compensating a frequency error using the refined frequency approximation value. Further, a corresponding integrated circuit chip and an operation method are provided. Using the technique for performing a frequency error correction process may provide high reliability, high precision and improved operation speed.Type: ApplicationFiled: December 20, 2002Publication date: April 1, 2004Inventors: Eric Sachse, Jorg Borowski, Ingo Kuhn
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Patent number: 6269093Abstract: Methods and apparatus are disclosed for suppressing transmitter burst mode disturbances in an audio band. The method and apparatus detects those signal frames wherein the input signal contains signal energy comprised substantially of only the disturbance signal; characterizes the disturbance signal in the detected signal frames to obtain a disturbance signal correction; and compensates the input signal, only for those signal frames where a transmission burst exists, using the obtained disturbance signal correction so as to remove the disturbance signal from those signal frames that contain voice, and also from certain signal frames that do not contain voice. Frequency hopping embodiments of disturbance removing circuitry are also disclosed.Type: GrantFiled: December 16, 1997Date of Patent: July 31, 2001Assignee: Nokia Mobile Phones LimitedInventors: Pertti Alapuranen, Ingo Kuhn, Janne Paksuniemi
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Patent number: 5862124Abstract: Interference in a cellular CDMA network due to mobile stations causing multiple use of one carrier frequency in neighboring cells is cancelled. A hard handover is implemented by defining the phase of a spread spectrum code in a signal transmitted from a base station to a mobile followed by measurement of signal strength in the mobile. Thereafter, the result is reported to the CDMA network, inferring whether the mobile interferes with the base station of the neighboring cells. If interference is present, the surrounding base stations are informed about the mobile station channel used, and this information is taken into account in the receivers of signals transmitted by other mobiles within the cell. The measurement results of the mobile are provided as initial values to the parameters required by the initialization of the interference cancellation routines performed in a neighboring base station.Type: GrantFiled: November 22, 1996Date of Patent: January 19, 1999Assignee: Nokia Telecommunications OYInventors: Ari Hottinen, Arto Kiema, Timo Laakso, Hannu Hakkinen, Aimo Tuoriniemi, Ilkka Keskitalo, Petri Jolma, Ingo Kuhn, Jari Savusalo, Ari Karkkainen, Anne Siira, Risto Uola
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Patent number: 5845208Abstract: A receiver, and a method for estimating received power in a cellular radio system having in each cell at least one base station communicating with mobile stations within its coverage area. The mobile stations measure strength of the signal received from a base station, and report the measurement results to that base station. To improve power adjustment, a model describing the dynamic behavior of the signal is created for the received power on each connection. The model is utilized for power adjustment, as well as for making handover decisions.Type: GrantFiled: April 8, 1996Date of Patent: December 1, 1998Assignee: Nokia Telecommunications OyInventors: Ari Hottinen, Ilkka Keskitalo, Arto Kiema, Petri Jolma, Ingo Kuhn, Jari Savusalo, Risto Uola, Anne Siira, Ari Karkkainen