1
Ravi Narasimhan, Piu Bill Wong, Shimon B Scherzer, Jiangfeng Wu: Space-time and space-frequency hopping for capacity enhancement of mobile data systems. Kathrein Werke KG, Fulbright & Jaworski, March 21, 2006: US07016649 (60 worldwide citation)

The present invention utilizes adaptive antenna arrays at a base station to increase the forward link capacity of mobile data systems. One or more simultaneous forward link beams are formed and are switched (or hopped) in a time division manner among subscribers. The beam hopping sequence is randomi ...


2
Jiangfeng Wu, Donald Edward Major: Multi-protocol radio frequency identification transponder tranceiver. Broadcom Corporation, Garlick Harrison & Markison, March 30, 2010: US07689195 (39 worldwide citation)

A transceiver for a RFID reader and a transceiver for a RFID transponder (tag) allow communication between the two devices. The RFID reader utilizes an analog front end and a digital backend. In the receiver portion of the transceiver, the front end of the RFID reader uses a pair of down-conversion ...


3
Jiangfeng Wu, Donald Edward Major: Multi-protocol radio frequency identification transceiver. Broadcom Corporation, Garlick Harrison & Markison, September 1, 2009: US07583179 (16 worldwide citation)

A transceiver for a RFID reader and a transceiver for a RFID transponder (tag) allow communication between the two devices. The RFID reader utilizes an analog front end and a digital backend. In the receiver portion of the transceiver, the front end of the RFID reader uses a pair of down-conversion ...


4
Shimon B Scherzer, Piu Bill Wong, Jiangfeng Wu, Alexander V Tesler: Wireless link quality using location based learning. Kathrein Werke KG, Fulbright & Jaworski L, February 24, 2004: US06697644 (15 worldwide citation)

The invention provides optimization of communication links by using a control loop with a relatively long time constant and adjusting particular communication links based upon feedback from a virtual communication unit associated with a communication link. A preferred embodiment of the invention opt ...


5
Jiangfeng Wu, Donald Edward Major: Multi-protocol radio frequency identification transceiver. Broadcom Corporation, Garlick Harrison & Markison, February 15, 2011: US07890080 (9 worldwide citation)

A transceiver for a RFID reader and a transceiver for a RFID transponder (tag) allow communication between the two devices. The RFID reader utilizes an analog front end and a digital backend. In the receiver portion of the transceiver, the front end of the RFID reader uses a pair of down-conversion ...


6
Jiangfeng Wu, Piu Bill Wong, Shimon B Scherzer: Directed maximum ratio combining and scheduling of high rate transmission for data networks. Kathrein Werke KG, Fulbright & Jaworski, August 1, 2006: US07085240 (5 worldwide citation)

Disclosed are systems and methods which proactively determine particular access terminals which are compatible for simultaneous communication at a high data rate and preferred embodiments provide scheduling of simultaneous communications such that data communication is optimized. Preferred embodimen ...


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Jiangfeng Wu, Donald Edward Major: Multi-protocol RF transceiver. Broadcom Corporation, Garlick Harrison & Markison, November 22, 2011: US08064873 (3 worldwide citation)

A transceiver for a RFID reader and a transceiver for a RFID transponder (tag) allow communication between the two devices. The RFID reader utilizes an analog front end and a digital backend. In the receiver portion of the transceiver, the front end of the RFID reader uses a pair of down-conversion ...


9
Tao Wang, Chun Ying Chen, Jiangfeng Wu: Pipelined analog-to-digital converter with dedicated clock cycle for quantization. Broadcom Corporation, Nathan O Greene, Brinks Gilson & Lione, May 20, 2014: US08730073 (3 worldwide citation)

A method for digitizing an analog signal through a pipelined analog-to-digital converter (ADC) may include pipelining a sample sub-stage, a quantization sub-stage and an amplification sub-stage to an ADC lane. Within a first of multiple pipelined stages, clock phases may be assigned to the ADC lane, ...


10
Wei Te Chou, Jiangfeng Wu, Wenbo Liu: Complementary switched capacitor amplifier for pipelined ADCs and other applications. Broadcom Corporation, Sterne Kessler Goldstein & Fox P L L C, April 1, 2014: US08686888 (3 worldwide citation)

The present disclosure is directed to a switched capacitor amplifier that includes a switched capacitor network and a complementary push-pull amplifier. The switched capacitor amplifier of the present disclosure can provide a larger fraction of the charge provided by a power supply and flowing throu ...