61
Luca Blessent, Quaeed Motiwala: Method and apparatus for processing a punctured pilot channel. QUALCOMM Incorporated, Larry J Moskowitz, Thomas Rouse, December 30, 2008: US07471657 (2 worldwide citation)

The punctured pilot channel comprises information symbols of uncertain sign punctured into a sequence of pilot channel symbols of predetermined sign. The apparatus includes an information sign demodulation circuit for determining the sign of the information symbols in response to the pilot channel s ...


62
Parvathanathan Subrahmanya, Da shan Shiu, Avneesh Agrawal: Adaptive pilot filter for a wireless communication system. Qualcomm Incorporated, Kenneth K Vu, Larry J Moskowitz, September 1, 2009: US07583756 (2 worldwide citation)

Techniques to filter pilot symbols for a pilot in an “adaptive” manner to provide an improved estimate of the response of a communication channel. A received signal may experience different channel conditions at different times, and different multipaths may also experience different channel conditio ...


63
Marco Cassia, Aristotele Hadjichristos: Switchable-level voltage supplies for multimode communications. QUALCOMM Incorporated, Larry J Moskowitz, William M Hooks, April 3, 2012: US08150339 (2 worldwide citation)

Switchable voltage level supplies for circuitry in a multi-mode communications chipset are disclosed. In an embodiment, a first voltage level is supplied to TX circuitry operating in a first mode having a first set of linearity and/or noise requirements. A second voltage level lower than the first v ...


64
Gokhan Mergen, Parvathanathan Subrahmanya, Vijayaraj Alilaghatta Kantharaj, Nitin Kasturi: Method and apparatus for filtering noisy estimates to reduce estimation errors. Qualcomm Incorporated, Larry J Moskowitz, Ashish L Patel, July 26, 2011: US07986756 (2 worldwide citation)

Techniques for filtering noisy estimates to reduce estimation errors are described. A sequence of input values (e.g., for an initial channel impulse response estimate (CIRE)) is filtered with an infinite impulse response (IIR) filter having at least one coefficient to obtain a sequence of output val ...


65
Michael Laisne, Songlin Zuo, Hailong Cui, Xiangdong Pan, Triphuong Nguyen: verification, debugging and failure diagnosis, Methodologies and tool set for I. QUALCOMM Incorporated, Larry J Moskowitz, William M Hooks, April 17, 2012: US08159255 (2 worldwide citation)

Quiescent supply current (IDDQ) verification, prediction, and debugging of low power semiconductor devices are enhanced by IDDQ defect diagnosis. If all IDDQ patterns fail verification, per module analysis is performed to sort out potential module design issues or cell constraint issues. For issues ...


66
Christos Komninakis, Ming Chieh Kuo: Method and apparatus for generating or utilizing one or more cycle-swallowed clock signals. Qualcomm Incorporated, Larry J Moskowitz, Eric Ho, March 6, 2012: US08132041 (2 worldwide citation)

An electronic device is provided for generating or utilizing one or more cycle-swallowed clock signals derived based on one or more first clock signals. The device includes a module configured to receive a first clock signal having a first frequency. The module is configured to generate a second clo ...


67
Wei Zhuo, Roger Brockenbrough, Solti Peng: Offset correction for passive mixers. QUALCOMM Incorporated, Larry J Moskowitz, October 25, 2011: US08045944 (2 worldwide citation)

A downconversion mixer includes a configurable gate or bulk bias voltage to allow calibration and correction of device offsets. Calibration may be performed on the configurable bias voltages to minimize IM2 distortion in the mixer. The techniques have minimal impact on voltage headroom, impose no re ...


68
Alkinoos H Vayanos, Francesco Grilli: Method and apparatus for time-sharing channelization code in a CDMA communication system. Qualcomm Incorporated, Kenneth K Vu, Larry J Moskowitz, October 6, 2009: US07599336 (2 worldwide citation)

Techniques to time-share a common channelization code among multiple terminals for compressed mode transmissions. Each terminal is initially assigned a respective channelization code used to channelize data transmitted in non-compressed frames for the terminal. A common channelization code used to c ...


69
Tao Luo, Yongbin Wei, Byoung Hoon Kim: Channel impulse response (CIR)-based and secondary synchronization channel (SSC)-based (frequency tracking loop (FTL)/time tracking loop (TTL)/channel estimation. Qualcomm Incorporated, Larry J Moskowitz, July 23, 2013: US08494070 (2 worldwide citation)

Methods and systems are disclosed for channel estimation and frequency tracking in mobile communication systems. Particularly, various ways of using the time domain impulse channel response based on the staggered frequency domain pilot tones are presented that enable rapid frequency error estimation ...


70
Arjun Bharadwaj, Sharad Deepak Sambhwani, Rohit Kapoor, Aziz Gholmieh, Jilei Hou, Danlu Zhang, Ozcan Ozturk: Sending an uplink order to active set base stations. QUALCOMM Incorporated, Larry J Moskowitz, Darren M Simon, January 1, 2013: US08345617 (2 worldwide citation)

A method for sending an uplink order to active set base stations is disclosed. A new mode of operation for a wireless communication device is determined. A transmission is sent on an uplink control channel to active set base stations that indicates the new mode. The transmission from the wireless co ...