Patents by Inventor Hendrik Lodewyk Van Eeden
Hendrik Lodewyk Van Eeden 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).
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Publication number: 20160125208Abstract: A method of adding TTO functionality to an RTF RFID air protocol, such as ISO/IEC 18000-63 and EPC C1G2 protocol, Chinese GB/T 29768-2013. The starting wait state is changed after power-up of the RTF protocol to a TTO state where the tag automatically transmits an ID or an ID plus additional data at intervals to a reader while still waiting for possible RTF commands. A new command is added that enables the reader to obtain a handle from the tag directly from the TTO state to access the tag in an identical manner to the RTF access. The TTO functionality is as defined by the ISO/IEC 1800-64 protocol or IP-X protocol.Type: ApplicationFiled: March 21, 2014Publication date: May 5, 2016Inventors: HENDRIK LODEWYK VAN EEDEN, CALVIN ZHANG, TAYLOR TIAN, YOUBON QIU, HUNTER XU
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Patent number: 9317725Abstract: A method of adding TTO functionality to an RTF RFID air protocol, such as ISO/IEC 18000-63 and EPC C1G2 protocol, Chinese GB/T 29768-2013. The starting wait state is changed after power-up of the RTF protocol to a TTO state where the tag automatically transmits an ID or an ID plus additional data at intervals to a reader while still waiting for possible RTF commands. A new command is added that enables the reader to obtain a handle from the tag directly from the TTO state to access the tag in an identical manner to the RTF access. The TTO functionality is as defined by the ISO/IEC 1800-64 protocol or IP-X protocol.Type: GrantFiled: March 21, 2014Date of Patent: April 19, 2016Assignee: ICOMP TECHNOLOGY (DALIAN) CO., LTD.Inventors: Hendrik Lodewyk Van Eeden, Calvin Zhang, Taylor Tian, Youbon Qiu, Hunter Xu
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Publication number: 20130241701Abstract: A method for wirelessly transferring operational information to an RFID reader using a tag-reader air interface. An RFID tag emulator capable of formatting operational information for an RFID reader into a standard RFID tag transmission signal format and transmitting it as a standard RFID tag transmission signal that may be read by a standard RFID reader. An RFID reader that can read information formatted in a standard RFID tag transmission signal format and extract operational information and storing it for use in the operation of the RFID reader.Type: ApplicationFiled: September 13, 2011Publication date: September 19, 2013Applicant: TRIDENT RFID PTY LTDInventors: Philip John Almond, Hendrik Lodewyk Van Eeden, Roger Wilton Dunn
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Patent number: 8500033Abstract: A transponder for a radio frequency identification system, the transponder comprising a UHF antenna, an LF antenna, an HF antenna, a charge storing device and an electronic circuit comprising UHF, LF and HF antenna ports; a UHF RFID protocol engine; a DF RFID protocol engine; shared memory for the two protocol engines; a UHF receiver, rectifier and data extractor; an LF receiver, rectifier and data extractor; a UHF modulator; an HF modulator; a decision circuit for selecting either the UHF energy source or the LF energy source; and a digital controller capable of selecting either the UHF protocol engine or the DF protocol engine or both, depending on which energy source is present and the strength of that energy source.Type: GrantFiled: June 10, 2011Date of Patent: August 6, 2013Assignee: Trident RFID Pty Ltd.Inventors: Philip John Almond, Hendrik Lodewyk Van Eeden
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Publication number: 20130146669Abstract: A transponder for a radio frequency identification system, the transponder comprising a UHF antenna, an LF antenna, an HF antenna, a charge storing device and an electronic circuit comprising UHF, LF and HF antenna ports; a UHF RFID protocol engine; a DF RFID protocol engine; shared memory for the two protocol engines; a UHF receiver, rectifier and data extractor; an LF receiver, rectifier and data extractor; a UHF modulator; an HF modulator; a decision circuit for selecting either the UHF energy source or the LF energy source; and a digital controller capable of selecting either the UHF protocol engine or the DF protocol engine or both, depending on which energy source is present and the strength of that energy source.Type: ApplicationFiled: June 10, 2011Publication date: June 13, 2013Applicant: Trident RFID Pty Ltd.Inventors: Philip John Almond, Hendrik Lodewyk Van Eeden
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Patent number: 8154387Abstract: An electronic tag is configured to be responsive to a TTO or TTF protocol energizing signal from a reader, but to suspend transmission when receiving an RTF protocol communication signal from a reader. The tag typically includes a protocol detector 120 which is operable to detect receipt of an RTF protocol communication signal and to suspend transmission when the electronic tag receives an RTF protocol communication signal from a reader.Type: GrantFiled: September 15, 2007Date of Patent: April 10, 2012Assignees: EM Microelectronic-Marin SA, Ipico South Africa (Proprietary) LimitedInventors: Hendrik Lodewyk Van Eeden, Albertus Jacobus Pretorius, Josef Preishuber-Pfluegl, Andreas Schuhai, Thierry Roz, Christopher Turner
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Patent number: 8087586Abstract: Disclosed is a transponder of a radio frequency identification system. Connected to a controller is a memory storing r-pages of k-bits of data. A first page includes an ID code relating to an integrated chip forming part of the transponder. The controller is configured, after the transponder has been interrogated by a reader, automatically and on a transponder talk only basis, to transmit transponder ID data including a concatenation of pages. Each page is led by a respective m-bit header. The header includes: (a) a first part having a random number, (b) a second part having for the first page in the ID data, a total number of pages in the ID data and for any subsequent page, a page number of the page in the memory and; (c) a third part having a sequential number for the page in the ID data.Type: GrantFiled: September 20, 2007Date of Patent: January 3, 2012Assignee: IPICO South Africia (Pty) LimitedInventors: Albertus Jacobus Pretorius, Hendrik Lodewyk Van Eeden, William Hendrik Hofmeyr
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Publication number: 20100026467Abstract: An electronic tag is configured to be responsive to a TTO or TTF protocol energizing signal from a reader, but to suspend transmission when receiving an RTF protocol communication signal from a reader. The tag typically includes a protocol detector which is operable to detect receipt of an RTF protocol communication signal and to suspend transmission when the electronic tag receives an RTF protocol communication signal from a reader.Type: ApplicationFiled: September 15, 2007Publication date: February 4, 2010Inventors: Hendrik Lodewyk Van Eeden, Albertus Jacobus Pretorious, Josef Preishuber-Pfluegl, Andreas Schuhai, Thierry Roz, Christophe Turner
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Publication number: 20100019039Abstract: Disclosed is a transponder of a radio frequency identification system. Connected to a controller is a memory storing r-pages of k-bits of data. A first page includes an ID code relating to an integrated chip forming part of the transponder. The controller is configured, after the transponder has been interrogated by a reader, automatically and on a transponder talk only basis, to transmit transponder ID data including a concatenation of pages. Each page is led by a respective m-bit header. The header includes: (a) a first part having a random number, (b) a second part having for the first page in the ID data, a total number of pages in the ID data and for any subsequent page, a page number of the page in the memory and; (c) a third part having a sequential number for the page in the ID data.Type: ApplicationFiled: September 20, 2007Publication date: January 28, 2010Applicant: IPICO SOUTH AFRICA (PTY) LIMITEDInventors: Albertus Jacobus Pretorius, Hendrik Lodewyk Van Eeden, William Hendrik Hofmeyr
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Publication number: 20090045923Abstract: An electronic tag (10) is operable in both an RTF protocol mode and a TTF or TTO protocol mode. Typically, the tag is an RFID tag which includes an antenna (11) acting as a receiver for receiving a signal, and as a transmitter for transmitting a signal.Type: ApplicationFiled: February 7, 2007Publication date: February 19, 2009Applicant: IPICO INNOVATION INC.Inventor: Hendrik Lodewyk van Eeden
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Publication number: 20080218314Abstract: A passive transponder (10) includes a resonator circuit (16) to receive a powering signal thereby to provide electrical energy to the transponder (10) by inductive coupling. The resonator circuit (16) is switchable between a high Q factor mode in which an induced voltage in the resonator circuit (16) decays slowly, and a low Q factor mode in which an induced voltage in the resonator circuit (16) decays more quickly. The transponder (10) includes a power storing arrangement (24) to store at least a portion of the electrical energy obtained from the powering signal.Type: ApplicationFiled: September 20, 2006Publication date: September 11, 2008Applicant: IPICO INNOVATION INC.Inventor: Hendrik Lodewyk Van Eeden
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Patent number: 6154136Abstract: An RF electronic identification system 10 is disclosed and claimed. The system includes a reader 12 and a plurality of transponders 14.1 to 14.n. When energized by an interrogation signal from the reader, each transponder automatically responds by repeatedly retransmitting a signal burst including identification code data associated with the relevant transponder. Each transponder includes circuitry 34 for generating random inter-transmission intervals for separating any two consecutive signal bursts and a controller 42 for the generation circuitry, to cause an average value of the inter-transmission intervals over a period of time to vary, preferably to increase. This feature enhances the probability and speed of reading a transponder population of almost any size.Type: GrantFiled: February 25, 1999Date of Patent: November 28, 2000Inventor: Hendrik Lodewyk Van Eeden