Inventor · Woerden, NL

Albert Van Zelst

51Patents
7h-index
37Co-inventors
68Inventor score

Filing activity: May 27, 2005 → Mar 2, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US7372913B2 Pilot tones in a multi-transmit OFDM system usable to capture transmitter diversity benefits Electricity 18 Expired
US9648620B2 Tone allocation for multiple access wireless networks Electricity 11 Active
US9319174B2 Verifying support for requests for transmission parameters in a multi-user scenario Electricity 11 Active
US8867574B2 Format of VHT-SIG-B and service fields in IEEE 802.11AC Electricity 11 Active
US8743784B2 VHT-SIG-B field in null data packets (NDPs) Electricity 10 Active
US9172455B2 Start frame for distributed MIMO Electricity 8 Active
US8270517B2 Method and apparatus for orthogonal pilot tone mapping in multiple-in and multiple-out (MIMO) and spatial division multiple access (SDMA) systems Electricity 7 Active
US7599333B2 Wireless messaging preambles allowing for beamforming and legacy device coexistence Electricity 7 Active
US9860037B2 Method and apparatus for ordering sub-fields of VHT-SIG-A and VIT-SIG-B fields Electricity 7 Active
US7539260B2 Detecting the number of transmit antennas in wireless communication systems Electricity 7 Active
US9780919B2 High efficiency WLAN preamble structure Electricity 6 Active
US9276795B2 Data transmission coexistence within television white space channels Electricity 6 Active
US8462867B2 Near soft-output maximum-likelihood detection for multiple-input multiple-output systems Electricity 5 Active
US9083408B2 Implicit and explicit channel sounding for beamforming Electricity 5 Active
US8532202B2 Near soft-output maximum likelihood detection for multiple-input multiple-output systems using reduced list detection Electricity 5 Active
US9008677B2 Communication devices for multiple group communications Electricity 5 Active
US9876542B2 Beamforming feedback format Electricity 5 Active
US9936492B2 Methods and systems for multi user uplink compatibility with legacy devices Electricity 5 Active
US8743837B2 Modified preamble structure for IEEE 802.11A extensions to allow for coexistence and interoperability between 802.11A devices and higher data rate, MIMO or otherwise extended devices Electricity 4 Active
US7792208B2 Pilot tones in a multi-transmit OFDM system usable to capture transmitter diversity benefits Electricity 4 Active
US9439161B2 Physical layer design for uplink (UL) multiuser multiple-input, multiple-output (MU-MIMO) in wireless local area network (WLAN) systems Electricity 4 Active
US9577728B1 Multiple user MIMO rate prediction based on single user SNR feedback Electricity 4 Active
US9130631B2 Beamforming feedback format Electricity 4 Active
US8908600B2 Channel state information feedback frame format and feedback rules for very high throughput wireless systems Electricity 4 Active
US8867565B2 MIMO and SDMA signaling for wireless very high throughput systems Electricity 3 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.