1
Hui Li, Takanori Iwamatsu, Jianmin Zhou: Apparatus for and method of controlling a predistorter, and method of detecting power control state. Fujitsu, Arent Fox, October 15, 2013: US08558615 (1 worldwide citation)

This invention relates to an apparatus for and a method of controlling a predistorter, and a method of detecting power control state. The method of controlling a predistorter, which is for predistorting a signal input into a power amplifier, comprises storing predistortion coefficients used by the p ...


2
Hui Li, Zhan Shi, JianMin Zhou: Predistorter, predistortion method, and predistortion system. Fujitsu, Katten Muchin Rosenman, August 9, 2011: US07994856 (1 worldwide citation)

This invention relates to a predistorter, a predistortion method, and a predistortion system. The predistorter comprises a modulus value determining section, for determining a modulus value of an input signal; a base searching section, for searching a predetermined base lookup table in accordance wi ...


3
Hui Li, Takanori Iwamatsu, Jianmin Zhou: Optimizing apparatus and method for a pulse shaping filter and a transmitter. Fujitsu, Arent Fox, May 9, 2017: US09647858

Embodiments of the present invention provide an optimizing apparatus and method for a pulse shaping filter and a transmitter. The apparatus is configured to determine an initial peak-to-average power ratio threshold of the pulse shaping filter, and determine an initial filter coefficient of the puls ...


4
Pei Chen, Jianmin Zhou: Multipath time delay estimation apparatus and method and receiver. Fujitsu, Arent Fox, September 19, 2017: US09768895

Embodiments of the present disclosure provide a multipath time delay estimation apparatus and method and a receiver. Time delay is divided into at least two subzones according to cross-correlation values of the transmission signal and the received signal, and time delay estimation is performed on ea ...


5
Hui Li, Zhan Shi, Jianmin Zhou: Predistortion apparatus, system, and method. Fujitsu, Hanify & King P C, October 12, 2010: US07812669

The present invention discloses a predistortion apparatus, a predistortion system and a predistortion method. The predistorter comprises a modular value calculating section, for performing modular arithmetic on an information source input signal inputted from an information source; an orthogonal loo ...


6
Hui Li, Takanori Iwamatsu, Jianmin Zhou: Automatic gain control device and method, power adjusting device and radio transmitting system. Fujitsu, Arent Fox, November 17, 2015: US09190972

An automatic gain control device includes: a variable gain adjusting unit, for adjusting an input signal by a variable gain and outputting an adjustment result; an analog-digital converting unit, for performing analog-digital conversion on the adjustment result to obtain an analog-digital conversion ...


7
Xin Wang, Yuuta Nakaya, Syuusaku Suzuki, Michiharu Nakamura, JianMin Zhou, Hiroyuki Hayashi: Apparatus and method of frame synchronization in broad band wireless communication systems. Fujitsu, Katten Muchin Rosenman, October 18, 2011: US08040922

The present invention relates to an apparatus and method of frame synchronization in broad band wireless communication systems. In an apparatus of frame synchronization in a mobile station, a time variant phase rotation compensator eliminates time variant phase rotation carried in received signals b ...


8
Zhan Shi, Hui Li, Jianmin Zhou, Gang Sun: Baseband predistortion device and method. Fujitsu, Hanify & King P C, October 12, 2010: US07812670

The present invention discloses a baseband predistorter and baseband predistortion method. The baseband predistorter comprising: an address generator for calculating an address of a phase basic lookup table and an address of an amplitude basic lookup table; a parameter determining unit for determini ...


9
Jianmin Zhou, Pei Chen, Hui Li, Zhan Shi: Predistortion device, method for predistortion, and transmitter/receiver system that reuse an analog receiving circuit in a half duplexing system and a full duplexing system, and that reduce the requirement on the analog receiving circuit. Fujitsu, Katten Muchin Rosenman, March 3, 2015: US08971828

The embodiments of the present invention provide a predistortion device, method for predistortion and transmitter/receiver system. The predistortion device comprises a predistortion unit, and the predistortion device further comprises: a signal acquiring unit to process the output signals of a trans ...


10
Hui Li, Takanori Iwamatsu, Jianmin Zhou: Temperature compensation method and apparatus for received signal strength indicator. Fujitsu, Arent Fox, December 8, 2015: US09209913

Embodiments of the present invention provide a temperature compensation method and apparatus for a received signal strength indicator. The apparatus comprises a temperature sensor configured to measure a current temperature; and a digital compensation module configured to select a temperature compen ...



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