Patents by Inventor Alan Hsu
Alan Hsu 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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Patent number: 9408209Abstract: Apparatus and method for wireless communication in a wireless communication network includes determining availability of a primary uplink frequency of a primary carrier and a secondary uplink frequency of a secondary carrier for uplink transmissions and determining a primary radio condition of the primary uplink frequency meets a superior condition threshold and a second radio condition of the secondary uplink frequency meets an inferior condition threshold. Aspects of the method and apparatus also include transmitting, based on determining the primary radio condition meets the superior condition threshold and the second radio condition meets the inferior condition threshold, all pending control packet data units and all pending retransmission packet data units on the primary uplink frequency. Additionally, the UE duplicates a transmission of all data from the secondary uplink frequency on the primary uplink frequency.Type: GrantFiled: August 1, 2013Date of Patent: August 2, 2016Assignee: QUALCOMM IncorporatedInventors: Sitaramanjaneyulu Kanamarlapudi, Liangchi Alan Hsu
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Patent number: 8929316Abstract: A process and system for controlling selection of which MS is to receive the next packet data transmission on a forward channel and selection of which plural MCS is to be used for the packet data transmissions on the forward channel. A process for controlling selection of MCS method to be used by a BTS to transmit data packets over a forward shared channel to a MS stores information at the BTS, the information containing MCS methods which may be selected to transmit data packets over the forward shared channel to the MS; receiving from the MS at the BTS a quality indication of transmission of data packets over the forward channel to the MS; and selecting a MCS method from a plurality of MCS methods which may be used to transmit data packets on the forward channel dependent upon the received quality indication.Type: GrantFiled: September 14, 2012Date of Patent: January 6, 2015Assignee: Vringo Infrastructure Inc.Inventors: Liangchi (Alan) Hsu, Mark W. Cheng, Giridhar Mandyam
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Patent number: 8774102Abstract: The invention is a process and system for controlling selection of which MS is to receive the next packet data transmission on a forward channel and selection of which plural MCS is to be used for the packet data transmissions on the forward channel. A process for controlling selection of MCS method to be used by a BTS (10) to transmit data packets over a forward shared channel to a MS (12) in accordance with the invention stores information at the BTS, the information containing MCS methods which may be selected to transmit data packets over the forward shared channel to the MS; receiving from the MS at the BTS a quality indication of transmission of data packets over the forward channel to the MS; and selecting a MCS method from a plurality of MCS methods which may be used to transmit data packets on the forward channel dependent upon the received quality indication.Type: GrantFiled: February 21, 2008Date of Patent: July 8, 2014Assignee: Vringo Infrastructure Inc.Inventors: Liangchi (Alan) Hsu, Mark W. Cheng, Giridhar Mandyam
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Patent number: 8749481Abstract: A method for improving video quality of a video stream. The method decodes the video stream and generates subblocks of video data from the video stream. The method then removes effects of subblock boundaries from previous deblocking. Each subblock is then smoothed to create pixel values and optionally, subblocks are merged if a predetermined quality is not achieved from the smoothing analysis. The pixels values are filled into each pixel position in the subblock. The subblocks are deblocked and then at least one subblock is outputted to a rendering device.Type: GrantFiled: April 28, 2008Date of Patent: June 10, 2014Assignee: Raritan Americas, Inc.Inventors: Alex Lee, Yee Liaw, Alan Hsu
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Publication number: 20140119295Abstract: Apparatus and method for wireless communication in a wireless communication network includes determining availability of a primary uplink frequency of a primary carrier and a secondary uplink frequency of a secondary carrier for uplink transmissions and determining a primary radio condition of the primary uplink frequency meets a superior condition threshold and a second radio condition of the secondary uplink frequency meets an inferior condition threshold. Aspects of the method and apparatus also include transmitting, based on determining the primary radio condition meets the superior condition threshold and the second radio condition meets the inferior condition threshold, all pending control packet data units and all pending retransmission packet data units on the primary uplink frequency. Additionally, the UE duplicates a transmission of all data from the secondary uplink frequency on the primary uplink frequency.Type: ApplicationFiled: August 1, 2013Publication date: May 1, 2014Applicant: QUALCOMM IncorporatedInventors: Sitaramanjaneyulu Kanamarlapudi, Liangchi Alan Hsu
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Patent number: 8427421Abstract: The present invention discloses an option menu for use with a computer management system. In operation, the option menu circuit combines or organizes a plurality of video signals generated by various OSD ICs to provide an option menu that is capable of various modes of operation. The option menu circuit is capable of displaying the option menu alone or in place of a portion of the video received from the selected connected computer. The option menu produced by the option menu circuit provides, inter alia, a list of computers that may be accessed by the computer management system. By utilizing a keyboard and/or cursor control device, a user may select the desired computer from the option menu.Type: GrantFiled: December 12, 2003Date of Patent: April 23, 2013Assignee: Raritan Americas, Inc.Inventors: Alex Lee, Yee Liaw, Alan Hsu
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Publication number: 20130039310Abstract: A process and system for controlling selection of which MS is to receive the next packet data transmission on a forward channel and selection of which plural MCS is to be used for the packet data transmissions on the forward channel. A process for controlling selection of MCS method to be used by a BTS to transmit data packets over a forward shared channel to a MS stores information at the BTS, the information containing MCS methods which may be selected to transmit data packets over the forward shared channel to the MS; receiving from the MS at the BTS a quality indication of transmission of data packets over the forward channel to the MS; and selecting a MCS method from a plurality of MCS methods which may be used to transmit data packets on the forward channel dependent upon the received quality indication.Type: ApplicationFiled: September 14, 2012Publication date: February 14, 2013Applicant: Vringo Infrastructure, Inc.Inventors: Liangchi (Alan) Hsu, Mark W. Cheng, Giridhar Mandyam
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Patent number: 8107422Abstract: An apparatus and method for implementing uplink and downlink channel fine time alignments for 3GPP continuous packet data connection (CPC) channels comprising determining if a HS-SCCH radio frame boundary is detected before a UL DPCCH radio frame boundary; aligning a transition of a UE_DTX_DRX_Enabled control signal from FALSE to TRUE to the HS-SCCH radio frame boundary or the UL DPCCH radio frame boundary, tagging a first DRX subframe to be 0, and tagging a first DTX subframe to be 0 depending on the determination; and monitoring configuration signals to determine alignments. In one aspect, the order of the tagging depends on the determination.Type: GrantFiled: September 25, 2008Date of Patent: January 31, 2012Assignee: QUALCOMM IncorporatedInventor: Liangchi Alan Hsu
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Patent number: 8032139Abstract: An approach is provided for selecting, by a multi-mode device, one among multiple networks. A plurality of overlay parameters associated with a plurality of networks are acquired, wherein the networks are different from one another. Each of the networks is rated using the overlay parameters according to one or more selection criteria. One of the networks is selected based on the rating.Type: GrantFiled: November 16, 2007Date of Patent: October 4, 2011Assignee: Nokia CorporationInventors: Paul Oommen, Liangchi Alan Hsu
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Patent number: 7995470Abstract: Apparatus, and an associated method, for utilizing traffic classes in a CDMA2000, or other packet radio, communication system. Traffic class designations are identified and used pursuant to communication set-up procedures. Depending upon the class identified in the request, allocations of communication resources are made. A traffic class signal generator generates values that identify a requested traffic class, and a formatter formats the traffic class into a message, such as a QoS BLOB that is used to allocate communication resources.Type: GrantFiled: December 10, 2003Date of Patent: August 9, 2011Assignee: Nokia CorporationInventors: Mark W. Cheng, LiangChi (Alan) Hsu
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Patent number: 7982593Abstract: An alarm device of a vehicle battery for monitoring voltage ranges in charging and discharging processes of the vehicle battery uses a sampling circuit to monitor the charging and discharging voltages real time of a battery, and prompts alert through a light or a buzzer of an alert unit in accordance with the preset voltage stage in a charging and discharging process of the battery. Moreover, a connection port compatible to an external electric device for accessing and examining the defect of a malfunction battery as a reference for maintaining and updating a malfunctioned battery.Type: GrantFiled: October 1, 2008Date of Patent: July 19, 2011Assignee: Lifetech Energy Inc.Inventor: Alan Hsu
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Patent number: 7911954Abstract: Apparatus, and an associated method, for a frame-formatted radio communication system. Coordination is provided between MAC and RLP layers of a sending station through use of apparatus embodied at the MAC layer of the sending station. Also, apparatus is provided at a receiving station to reduce the generation of RLP layer NAK during segmented RLP frame retransmissions.Type: GrantFiled: May 22, 2006Date of Patent: March 22, 2011Assignee: Nokia CorporationInventors: Mark W. Cheng, Liangchi (Alan) Hsu
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Patent number: 7903610Abstract: A method for providing a reverse link handoff mechanism includes, with respect to communication between a mobile station and a first cell, initiating a start of a cell switch delay by transmitting a request that a new data channel be established with a second cell. The method further includes communicating with the first cell during the cell switch delay and upon an end of the cell switch delay, switching data transmission to the second cell. The cell switch delay is a time interval extending from a time that the request is transmitted until startig of reception of data packets via the new data channel by the second cell. The application of the cell switch delay is determined based on a location of the first cell and the second cell.Type: GrantFiled: April 2, 2002Date of Patent: March 8, 2011Assignee: Nokia CorporationInventors: Mark W Cheng, Liangchi (Alan) Hsu
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Patent number: 7848290Abstract: A method in a system including a mobile station, a group of active cells including a first serving cell and a second target cell and a controller of the active cells which switches forward link transmissions of data packets from the controller through the first serving cell to the mobile station to forward link transmission of data packets from the controller through a second cell to the mobile station.Type: GrantFiled: April 24, 2002Date of Patent: December 7, 2010Assignee: Nokia CorporationInventors: Mark W. Cheng, Liangchi (Alan) Hsu
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Publication number: 20100079271Abstract: An alarm device of a vehicle battery for monitoring voltage ranges in charging and discharging processes of the vehicle battery uses a sampling circuit to monitor the charging and discharging voltages real time of a battery, and prompts alert through a light or a buzzer of an alert unit in accordance with the preset voltage stage in a charging and discharging process of the battery. Moreover, a connection port compatible to an external electric device for accessing and examining the defect of a malfunction battery as a reference for maintaining and updating a malfunctioned battery.Type: ApplicationFiled: October 1, 2008Publication date: April 1, 2010Inventor: Alan Hsu
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Publication number: 20100074188Abstract: An apparatus and method for implementing uplink and downlink channel fine time alignments for 3GPP continuous packet data connection (CPC) channels comprising determining if a HS-SCCH radio frame boundary is detected before a UL DPCCH radio frame boundary; aligning a transition of a UE_DTX_DRX_Enabled control signal from FALSE to TRUE to the HS-SCCH radio frame boundary or the UL DPCCH radio frame boundary, tagging a first DRX subframe to be 0, and tagging a first DTX subframe to be 0 depending on the determination; and monitoring configuration signals to determine alignments. In one aspect, the order of the tagging depends on the determination.Type: ApplicationFiled: September 25, 2008Publication date: March 25, 2010Applicant: QUALCOMM IncorporatedInventor: Liangchi Alan Hsu
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Patent number: 7684366Abstract: Apparatus, and an associated method, for reporting QoS information associated with a reverse link communication service effectuated in a radio communication system, such as a CDMA2000 cellular communication system. The mobile station includes a service quality level selector that selects a selected service quality level, such as a communication rate, at which the communication service is to be effectuated. The mobile station further selectably includes a message generator that generates a service quality indication message. A detector detects the scheduling architecture of a network part of the communication system with which the mobile station communicates. And, information contained in the message generated by the message generator is dependent, in part, upon the scheduling architecture.Type: GrantFiled: January 4, 2008Date of Patent: March 23, 2010Assignee: Nokia CorporationInventors: Mark W. Cheng, LiangChi (Alan) Hsu
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Publication number: 20100022243Abstract: An approach is provided for selecting, by a multi-mode device, one among multiple networks. A plurality of overlay parameters associated with a plurality of networks are acquired, wherein the networks are different from one another. Each of the networks is rated using the overlay parameters according to one or more selection criteria. One of the networks is selected based on the rating.Type: ApplicationFiled: November 16, 2007Publication date: January 28, 2010Inventors: Paul Oommen, Liangchi Alan Hsu
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Patent number: 7561509Abstract: The invention is a process and system for controlling selection of which MS is to receive the next packet data transmission on a forward channel and selection of which plural MCS is to be used for the packet data transmissions on the forward channel. A process for controlling selection of MCS method to be used by a BTS (10) to transmit data packets over a forward shared channel to a MS (12) in accordance with the invention stores information at the BTS, the information containing MCS methods which may be selected to transmit data packets over the forward shared channel to the MS; receiving from the MS at the BTS a quality indication of transmission of data packets over the forward channel to the MS; and selecting a MCS method from a plurality of MCS methods which may be used to transmit data packets on the forward channel dependent upon the received quality indication.Type: GrantFiled: July 26, 2004Date of Patent: July 14, 2009Assignee: Nokia CorporationInventors: Liangchi (Alan) Hsu, Mark W. Cheng, Giridhar Mandyam
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Patent number: RE44447Abstract: A method in a system including a mobile station, a group of active cells including a first serving cell and a second target cell and a controller of the active cells which switches forward link transmissions of data packets from the controller through the first serving cell to the mobile station to forward link transmission of data packets from the controller through a second cell to the mobile station.Type: GrantFiled: April 24, 2002Date of Patent: August 20, 2013Assignee: Nokia CorporationInventors: Mark W. Cheng, Liangchi (Alan) Hsu