Patents by Inventor Huyu Qu
Huyu Qu 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: 20150134470Abstract: A self-checkout shopping system improves the retail shopping experience, permitting the self-serve customer to perform checkout tasks that are typically performed at the retailer's checkout area as the customer is selecting items for purchase. The system includes a mobile computer device and an indicia reader. The customer uses the mobile computer device to scan items selected for purchase. The item numbers are then compiled onto a list of acquired merchandise. When the customer has finished shopping, the system transmits the list of acquired merchandise, and any additional information such as customer financial information, to a point-of-sale terminal to facilitate the customer's payment for the merchandise.Type: ApplicationFiled: November 8, 2013Publication date: May 14, 2015Inventors: Benjamin Hejl, Timothy Williams, Jianfeng Gao, HongJian Jin, Xiaodong Zhou, Qi Zhu, Zhiqiang Yuan, Huyu Qu, Mehul Patel, Ynjiun Paul Wang, Tao Xian
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Publication number: 20150122897Abstract: A radio frequency identifier (RFID) tag can comprise an RFID chip, an antenna provided by a patch cell stack; and a feed line electrically coupling the RFID chip to the antenna. An equivalent circuit for the patch cell stack can comprise at least one inductance group comprising at least two series inductances, and at least one shunt capacitance. The antenna can have a composite right- and left-handed (CRLH) structure.Type: ApplicationFiled: January 16, 2015Publication date: May 7, 2015Inventors: Ynjiun Paul WANG, Huyu QU
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Patent number: 9010641Abstract: A portable data terminal including a processor having an instruction set architecture and data storage means configured to store a plurality of operating systems and a virtual machine monitor application program configured to receive at least one instruction from each operating system, communicate with the processor according to the instruction set architecture, and switch operating system access to the processor upon receipt of an electrical signal representing an event.Type: GrantFiled: December 7, 2010Date of Patent: April 21, 2015Assignee: Hand Held Products, Inc.Inventors: Huyu Qu, Ynjiun Paul Wang
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Publication number: 20150041541Abstract: An antenna system may include a first metamaterial antenna having a first resonant frequency and a second metamaterial antenna having a second resonant frequency. The first resonant frequency may be different from the second resonant frequency. A first feed point may be connected to the first metamaterial antenna, and a second feed point may be connected to the second metamaterial antenna. A signal may be applied to the first and second feed points so that the first and second metamaterial antennas radiates electromagnetic energy while the signal is being applied and so that the antenna system is configured to send or receive signals over both the first and second resonant frequency bands.Type: ApplicationFiled: August 6, 2013Publication date: February 12, 2015Applicant: HAND HELD PRODUCTS, INC.Inventors: Huyu QU, Fouad NUSSEIBEH, Ynjiun Paul WANG
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Publication number: 20150041540Abstract: A system for reading transponders may include a printed circuit board and an electrotextile antenna. The printed circuit board may include an RFID reading circuit, and the electrotextile antenna may be electrically connected to the printed circuit board via a connection. The electrotextile antenna may be composed of a material made by blending or coating textiles with a metal, and the electrotextile antenna may be configured to transmit and receive signals between the RFID reading circuit and RFID tags.Type: ApplicationFiled: August 6, 2013Publication date: February 12, 2015Applicant: HAND HELD PRODUCTS, INC.Inventors: Huyu QU, Fouad NUSSEIBEH
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Patent number: 8944330Abstract: A radio frequency identifier (RFID) tag can comprise an RFID chip, an antenna, and a feed line electrically coupling the RFID chip to the antenna. An encoded information reading (EIR) terminal can comprise a microprocessor, a memory communicatively coupled to the microprocessor, a communication interface, and an EIR device provided by a bar code reading device, an RFID reading device, or a card reading device. The RFID reading device can further comprise an antenna and a feed line. The antenna for the RFID tag or for the RFID reading device can be provided by a patch cell, a patch cell array comprising two or more patch cells, or by a patch cell stack comprising two or more patch cells. An equivalent circuit for the patch can comprise at least two inductances and a shunt capacitance. An equivalent circuit for the patch cell array can comprise two or more inductance groups connected via a series capacitance and two or more shunt capacitances.Type: GrantFiled: September 6, 2013Date of Patent: February 3, 2015Assignee: Hand Held Products, Inc.Inventors: Ynjiun Paul Wang, Huyu Qu
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Patent number: 8919654Abstract: An apparatus may include a microprocessor and a wireless communication interface configured to perform at least one of receiving a first radio signal or transmitting a second radio signal. The microprocessor may be configured to execute at least one of a base-band encoder software program or a base-band decoder software program. The apparatus may be further configured to execute a wireless communication protocol selector software program that may be configured to optimize a value of a user-defined criterion in order to dynamically select at least one of a wireless communication network, a wireless communication protocol, and a parameter of a wireless communication protocol.Type: GrantFiled: March 6, 2014Date of Patent: December 30, 2014Assignee: Hand Held Products, Inc.Inventors: Ynjiun P. Wang, Huyu Qu, James T. Sauerwein
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Publication number: 20140361073Abstract: A data decoding system that includes a server-side proxy component and at least two back-end computers, where the server-side proxy component is configured, when it receives an encoding request from a client, to select a back-end computer to forward the encoding request to, based on either a pre-defined rule, load estimates for the at least two computers, estimated network throughputs across network paths to the two computers. In response to receiving this request, the back-end computer that is selected is configured to encode the request.Type: ApplicationFiled: August 25, 2014Publication date: December 11, 2014Inventors: Huyu Qu, Ynjiun P. Wang
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Publication number: 20140357195Abstract: A portable encoded information reading (EIR) terminal for incorporation in a data collection system can comprise a terminal module communicatively coupled to a wireless interface module via a wired interface. The terminal module can include a central processing unit (CPU), a memory, and an encoded information reading (EIR) device. The wireless interface module can include a microcontroller, a memory, and at least one wireless communication interface. The wireless interface module can establish one or more wireless links with one or more peer EIR terminals, to join a wireless network which is collectively formed by the peer EIR terminals. The wireless interface module can receive or transmit beacons containing at least an identifier of a path selection protocol which is used for unicast, multicast and broadcast frame transmission within the wireless network.Type: ApplicationFiled: August 15, 2014Publication date: December 4, 2014Inventors: Ynjiun P. Wang, Huyu Qu
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Patent number: 8820630Abstract: A data decoding system that includes a server-side proxy component and at least two back-end computers, where the server-side proxy component is configured, when it receives a decoding request from a client, to select a back-end computer to forward the decoding request to, based on either a pre-defined rule, load estimates for said at least two computers, estimated network throughputs across network paths to the two computers. In response to receiving this request, the back-end computer that is selected is configured to decode the request, which is an image of decodable indicia, by locating the decodable indicia within the image and decoding it into a decoded message. The decodable indicia was provided by a raw image byte stream, a compressed image byte stream, or a partial compressed image byte stream.Type: GrantFiled: July 15, 2013Date of Patent: September 2, 2014Assignee: Honeywell International, Inc.Inventors: Huyu Qu, Ynjiun P. Wang
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Patent number: 8807431Abstract: A portable encoded information reading (EIR) terminal for incorporation in a data collection system can comprise a terminal module communicatively coupled to a wireless interface module via a wired interface. The terminal module can include a central processing unit (CPU), a memory, and an encoded information reading (EIR) device. The wireless interface module can include a microcontroller, a memory, and at least one wireless communication interface. The wireless interface module can establish one or more wireless links with one or more peer EIR terminals, to join a wireless network which is collectively formed by the peer EIR terminals. The wireless interface module can receive or transmit beacons containing at least an identifier of a path selection protocol which is used for unicast, multicast and broadcast frame transmission within the wireless network.Type: GrantFiled: November 18, 2013Date of Patent: August 19, 2014Assignee: Hand Held Products, Inc.Inventors: Ynjiun P. Wang, Huyu Qu
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Patent number: 8779898Abstract: An encoded information reading (EIR) terminal can comprise a microprocessor electrically coupled to a system/data bus, a memory communicatively coupled to the microprocessor, an EIR device, a multi-band antenna, and a wireless communication interface. The EIR device can be provided by a bar code reading device, an RFID reading device, or a card reading device. The EIR device can be configured to output raw message data containing an encoded message and/or output decoded message data corresponding to an encoded message. The wireless communication interface can comprise a radio frequency (RF) front end electrically coupled to the multi-band antenna. The RF front end can comprise a micro-electromechanical (MEMS) filter array including one or more band-pass filter. Each band-pass filter of the MEMS filter array can be electrically coupled to a bias voltage source or an oscillating signal source.Type: GrantFiled: August 17, 2011Date of Patent: July 15, 2014Assignee: Hand Held Products, Inc.Inventors: William H. Havens, Huyu Qu
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Publication number: 20140187181Abstract: An apparatus may include a microprocessor and a wireless communication interface configured to perform at least one of receiving a first radio signal or transmitting a second radio signal. The microprocessor may be configured to execute at least one of a base-band encoder software program or a base-band decoder software program. The apparatus may be further configured to execute a wireless communication protocol selector software program that may be configured to optimize a value of a user-defined criterion in order to dynamically select at least one of a wireless communication network, a wireless communication protocol, and a parameter of a wireless communication protocol.Type: ApplicationFiled: March 6, 2014Publication date: July 3, 2014Applicant: HAND HELD PRODUCTS, INC.Inventors: Ynjiun P. WANG, Huyu QU, James T. SAUERWEIN
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Patent number: 8757495Abstract: An encoded information reading (EIR) terminal can comprise a microprocessor, a memory communicatively coupled to the microprocessor, an EIR device, a multi-band antenna, and a wireless communication interface. The EIR reading device can be provided by a bar code reading device, an RFID reading device, and/or a card reading device. The EIR device can be configured to output raw message data comprising an encoded message and/or output decoded message data corresponding to an encoded message. The wireless communication interface can be configured to support at least two wireless communication protocols. The multi-band antenna can be configured to simultaneously receive two or more radio signals in two or more frequency regulatory domains. The EIR terminal can be configured to dynamically select a wireless communication network and/or a wireless communication protocol by optimizing a value of a wireless communication protocol selection criterion which can be based on said two or more radio signals.Type: GrantFiled: September 3, 2010Date of Patent: June 24, 2014Assignee: Hand Held Products, Inc.Inventors: Huyu Qu, Ynjiun P. Wang, James T. Sauerwein, Jr.
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Publication number: 20140159869Abstract: Devices, methods, and software are disclosed for reading RFID tags located in defined spatial locations. In one illustrative embodiment, a system can comprise a processor, a memory, and an RFID reading device including at least one radio frequency (RF) antenna. The system can be configured to read a first plurality of RFID tags attached to items disposed within a first spatial zone and read a second plurality of RFID tags attached to items disposed within a second spatial zone. The system can be further configured to produce a list of identifiers of RFID tags which belong to the second plurality of RFID tags and do not belong to the first plurality of RFID tags. In some embodiments, the system can be further configured, responsive to successfully decoding decodable indicia attached to an item, to match the item to an RFID tag belonging to the list.Type: ApplicationFiled: January 17, 2013Publication date: June 12, 2014Inventors: Philip Zumsteg, Huyu Qu
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Publication number: 20140133379Abstract: A portable data terminal (PDT) adapted to participate in a wireless mesh network including a plurality of peer PDTs can comprise: a PDT module including an encoded information reading (EIR) device, and a mesh point (MP) module communicatively coupled to the PDT module. The MP module can include a microcontroller and at least one wireless communication interface and can be configured to perform IEEE 802.11-conformant wireless station services including authentication, de-authentication, privacy, and MAC service data unit delivery, and IEEE 802.11-conformant wireless distribution system services including association, disassociation, distribution, integration, and re-association. The MP module can be further configured, responsive to receiving a MAC frame addressed to a recipient inside the wireless mesh network, to deliver the MAC frame using the distribution service.Type: ApplicationFiled: January 20, 2014Publication date: May 15, 2014Applicant: Hand Held Products, Inc.Inventors: Ynjiun P. Wang, William H. Havens, Huyu Qu
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Patent number: 8708236Abstract: An encoded information reading (EIR) terminal can comprise a microprocessor, a memory, an (EIR) device, and a wireless communication interface. The EIR device can be provided by a bar code reading device, an RFID reading device, and/or a card reading device. The EIR device can be configured to perform outputting raw message data containing an encoded message and/or outputting decoded message data corresponding to an encoded message. The wireless communication interface can comprise a radio frequency front end configured to perform receiving a first radio signal and/or transmitting a second radio signal. The radio frequency front end can be electrically coupled to an analog-to-digital converter (ADC) which can be electrically coupled to the system bus and/or to a digital-to-analog converter (DAC) which can be electrically coupled to the system bus. The microprocessor can be configured to execute a base-band encoder software program and/or a base-band decoder software program.Type: GrantFiled: March 26, 2012Date of Patent: April 29, 2014Assignee: Hand Held Products, Inc.Inventors: Ynjiun P. Wang, Huyu Qu, James T. Sauerwein
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Publication number: 20140098792Abstract: A portable encoded information reading (EIR) terminal for incorporation in a data collection system having a host computer, a plurality of peer EIR terminals, and a plurality of interconnected networks including one or more wireless networks, can comprise a central processing unit (CPU), a memory, an encoded information reading (EIR) device configured to output raw message data containing an encoded message or decoded message data corresponding to an encoded message, and at least one wireless communication interface. The EIR terminal can provide IEEE 802.11-conformant wireless distribution system services, including association, disassociation, distribution, integration, and re-association, to the peer EIR terminals. The EIR terminal can be associated with a home network and have a home address belonging to the address range associated with the home network.Type: ApplicationFiled: December 16, 2013Publication date: April 10, 2014Inventors: Ynjiun P. Wang, Huyu Qu
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Publication number: 20140061307Abstract: A portable encoded information reading (EIR) terminal for incorporation in a data collection system can comprise a terminal module communicatively coupled to a wireless interface module via a wired interface. The terminal module can include a central processing unit (CPU), a memory, and an encoded information reading (EIR) device. The wireless interface module can include a microcontroller, a memory, and at least one wireless communication interface. The wireless interface module can establish one or more wireless links with one or more peer EIR terminals, to join a wireless network which is collectively formed by the peer EIR terminals. The wireless interface module can receive or transmit beacons containing at least an identifier of a path selection protocol which is used for unicast, multicast and broadcast frame transmission within the wireless network.Type: ApplicationFiled: November 18, 2013Publication date: March 6, 2014Inventors: Ynjiun P. Wang, Huyu Qu
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Patent number: 8638806Abstract: A portable data terminal (PDT) adapted to participate in a wireless mesh network including a plurality of peer PDTs can comprise: a PDT module including an encoded information reading (EIR) device, and a mesh point (MP) module communicatively coupled to the PDT module. The MP module can include a microcontroller and at least one wireless communication interface and can be configured to perform IEEE 802.11-conformant wireless station services including authentication, de-authentication, privacy, and MAC service data unit delivery, and IEEE 802.11-conformant wireless distribution system services including association, disassociation, distribution, integration, and re-association. The MP module can be further configured, responsive to receiving a MAC frame addressed to a recipient inside the wireless mesh network, to deliver the MAC frame using the distribution service.Type: GrantFiled: May 22, 2008Date of Patent: January 28, 2014Assignee: Hand Held Products, Inc.Inventors: Ynjiun P. Wang, William H. Havens, Huyu Qu