Patents by Inventor Levent Aydin

Levent Aydin 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).

  • Publication number: 20130064153
    Abstract: Certain aspects of the present disclosure may help reduce power consumption by allowing a UE to remain in a low power state by not attempting to decode ACK/NACK transmissions after receiving a positive acknowledgement (ACK).
    Type: Application
    Filed: September 13, 2012
    Publication date: March 14, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Thomas Klingenbrunn, Brian Clarke Banister, Navid Ehsan, Levent Aydin
  • Publication number: 20120176922
    Abstract: Aspects of the present disclosure relate to wireless communications and techniques and apparatus for downlink flow control at the physical layer of a user equipment (UE). Aspects generally include monitoring one or more parameters related to the UE and intentionally reducing channel quality based on the one or more parameters to trigger downlink flow control. According to aspects, channel quality may be reduced by degrading receiver performance and/or intentionally adding noise to a signal.
    Type: Application
    Filed: January 5, 2012
    Publication date: July 12, 2012
    Applicant: QUALCOMM Incorporated
    Inventors: Navid Ehasan, Thomas Klingenbrunn, Brian Clarke Banister, Michael L. McCloud, Levent Aydin
  • Publication number: 20110150152
    Abstract: A method for Automatic Gain Control (AGC) in a receiver is performed by a circuit having an inner loop and an outer loop. The method includes performing an outer loop energy detection, mitigating interference using the outer loop energy detection, and performing a frequency domain energy measurement in the inner loop. The method also includes adjusting a digital gain component in the inner loop and an analog gain component in the outer loop in response to the frequency domain energy measurement.
    Type: Application
    Filed: December 17, 2010
    Publication date: June 23, 2011
    Applicant: QUALCOMM Incorporated
    Inventors: Raghu Narayan Challa, Brian Clarke Banister, Levent Aydin, Yuheng Huang
  • Patent number: 6735216
    Abstract: In a code division multiple access communication system, a method and apparatus provide for an efficient testing of operating behavior of a quality indicator bit. The method and the accompanying apparatus include configuring a receiver to expect to receive a communication channel at a full data rate, and transmitting a signal from a transmitter to the receiver. The signal is carrying the communication channel at a data rate other than said full data rate, and at a power level for receiving at the full data rate. Consequently, the receiver fails to receive the communication channel at the full data rate. A received signal to noise ratio of the received signal at the receiver is determined. A value of the quality indicator bit is determined based on the determined signal to noise ratio. The determined value of the quality indicator bit is communicated to the transmitter.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: May 11, 2004
    Assignee: Qualcomm, Inc.
    Inventors: Tao Chen, Vince Ryo Butsumyo, Levent Aydin
  • Patent number: 6678320
    Abstract: A finite impulse response filter including a first circuit for providing plural delayed signals in response to an input signal. A second circuit is included for multiplying respective ones of the delayed signals by a corresponding coefficient and providing a respective intermediate signal in response thereto. A third circuit selectively changes the sign of respective ones of a first set of the intermediate output signals to provide a set of component in-phase signals. A fourth circuit selectively changes the sign of respective ones of a second set of the intermediate output signals to provide a set of component quadrature signals. The component in-phase signals are combined to provide an in-phase output signal and the component quadrature signals are combined to provide a quadrature output signal. In the illustrative implementation, the coefficients are generated in accordance with an industry standard via a storage device such as a register bank.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: January 13, 2004
    Assignee: Qualcomm, Incorporated
    Inventor: Levent Aydin
  • Publication number: 20020064133
    Abstract: In a code division multiple access communication system, a method and apparatus provide for an efficient testing of operating behavior of a quality indicator bit. The method and the accompanying apparatus include configuring a receiver to expect to receive a communication channel at a full data rate, and transmitting a signal from a transmitter to the receiver. The signal is carrying the communication channel at a data rate other than said full data rate, and at a power level for receiving at the full data rate. Consequently, the receiver fails to receive the communication channel at the full data rate. A received signal to noise ratio of the received signal at the receiver is determined. A value of the quality indicator bit is determined based on the determined signal to noise ratio. The determined value of the quality indicator bit is communicated to the transmitter.
    Type: Application
    Filed: March 30, 2001
    Publication date: May 30, 2002
    Inventors: Tao Chen, Vince Ryo Butsumyo, Levent Aydin
  • Patent number: 6286994
    Abstract: A system, method and computer program product that uses an expected output power level to compensate for slowly changing unintentional power fluctuations in a signal transmission system such that the actual transmitted power matches a calculated desired transmit power. Digital expected power data is sampled and filtered to generate an expected output power level. Actual output data is sampled and filtered to generate an actual output power level. A comparator periodically compares the expected output power level to the actual output power level. Preferably, the comparator first removes a correction value from the actual output power level that was added to the transmit signal to correct for unintentional power fluctuations. The resultant ratio or difference is sent to a correction module which generates a correction value therefrom. The correction value is converted to a dB quantity and added to existing correction values.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: September 11, 2001
    Assignee: Qualcomm Incorporated
    Inventors: Robert W. Boesel, Levent Aydin, Lindsay A. Weaver, Jr.