Patents by Inventor Charles N. Lo

Charles N. Lo 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).

  • Patent number: 10027432
    Abstract: Techniques for sending and receiving broadcast information are described. In an aspect, broadcast metadata may be generated for broadcast information and may include location and time criteria used by terminals to filter the broadcast information. Each location and time criterion may include (i) a location criterion given by a target location and a presence or absence requirement and (ii) a time criterion given by a time period in which the location criterion applies. A terminal may receive the broadcast metadata prior to or with the broadcast information, obtain location and time criteria from the broadcast metadata, and filter the broadcast information based on the location and time criteria. The terminal may evaluate each location and time criterion by determining its location within a specified time period and determining whether its location is within or outside a specified target location, as indicated by the presence or absence requirement.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: July 17, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Stephen William Edge, Andreas Klaus Wachter, Prasanna Kannan, Charles N. Lo
  • Patent number: 10015437
    Abstract: A proxy unit is configured to obtain mapping information that maps an identifier for media data to a resource location based on a service for retrieving the media data, wherein the service defines at least one of a plurality of types of transports for transporting the media data, receive a request for the media data from an application service client, determine whether the service is available, and, when the service is available, cause the application service client to receive the media data from a unit that receives the media data using the service from the resource location, based on the mapping information. In this manner, the application service client may receive media data from the unit (e.g., a middleware unit), which then receives the media data using a service that defines transport according to, e.g., broadcast or multicast transport, or another fashion (e.g., unicast) if the defined transport is unavailable.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: July 3, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Kevin Roland Fall, Nagaraju Naik, Thomas Stockhammer, Fatih Ulupinar, Carlos Marcelo Dias Pazos, Charles N. Lo
  • Patent number: 9820259
    Abstract: Techniques are provided for smooth transition between broadcast/multicast transmission and unicast transmission. A method for managing unicast and multicast services switching in a multi-band/multi-frequency wireless communications system (WCS) capable of both unicast and multicast signaling includes determining whether an aggregate demand for a content provided via dedicated unicast transmissions exceeds a threshold. The method includes switching transmission of the content from the dedicated unicast transmissions on one frequency to a multicast transmission on a second or more frequencies in response to determining that the aggregate demand exceeds the threshold.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: November 14, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Jun Wang, George Cherian, Nagaraju Naik, Xiaoxia Zhang, Edward Robert Hall, Arungundram Chandrasekaran Mahendran, Gordon Kent Walker, Charles N. Lo, Carlos Marcelo Dias Pazos, Kuo-Chun Lee, Jack Shyh-Hurng Shauh, Gang Bao
  • Patent number: 9445138
    Abstract: Systems, methods, and receiver devices enable broadcasters with restricted content license areas (e.g., Designated Market Areas (“DMAs”) to distribute content via Over the Top (“OTT”) IP networks. Embodiments enable client reporting and authentication as well as broadcast content encryption. In an embodiment, information from the client may be reported back to the broadcasters, such as a view history/use report. In an embodiment, hand off between DMAs may be enabled. In an embodiment, local advertisement insertion in network content may be enabled. Embodiments may enable Multicast-Broadcast Single Frequency Network (“MBSFN”) operation across DMA boundaries.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 13, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Gordon Kent Walker, Charles N. Lo, Jun Wang, Daphna Zeilingold, Joseph P. Barone, Ed O. Tiongson
  • Publication number: 20160226611
    Abstract: Techniques for sending and receiving broadcast information are described. In an aspect, broadcast metadata may be generated for broadcast information and may include location and time criteria used by terminals to filter the broadcast information. Each location and time criterion may include (i) a location criterion given by a target location and a presence or absence requirement and (ii) a time criterion given by a time period in which the location criterion applies. A terminal may receive the broadcast metadata prior to or with the broadcast information, obtain location and time criteria from the broadcast metadata, and filter the broadcast information based on the location and time criteria. The terminal may evaluate each location and time criterion by determining its location within a specified time period and determining whether its location is within or outside a specified target location, as indicated by the presence or absence requirement.
    Type: Application
    Filed: April 8, 2016
    Publication date: August 4, 2016
    Inventors: Stephen William Edge, Andreas Klaus Wachter, Prasanna Kannan, Charles N. Lo
  • Patent number: 9312970
    Abstract: Techniques for sending and receiving broadcast information are described. In an aspect, broadcast metadata may be generated for broadcast information and may include location and time criteria used by terminals to filter the broadcast information. Each location and time criterion may include (i) a location criterion given by a target location and a presence or absence requirement and (ii) a time criterion given by a time period in which the location criterion applies. A terminal may receive the broadcast metadata prior to or with the broadcast information, obtain location and time criteria from the broadcast metadata, and filter the broadcast information based on the location and time criteria. The terminal may evaluate each location and time criterion by determining its location within a specified time period and determining whether its location is within or outside a specified target location, as indicated by the presence or absence requirement.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: April 12, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Stephen William Edge, Andreas Klaus Wachter, Prasanna Kannan, Charles N Lo
  • Patent number: 9280778
    Abstract: Techniques for performing location logging and location and time based filtering are described. In one design of location logging, a terminal periodically determines its location, e.g., during its paging slots. The terminal determines whether there is a change in its location and stores its location if a change in location is detected. In one design of location and time based filtering, the terminal obtains a location and time criterion with a target area and a time period. The terminal determines its location during the time period, e.g., based on the location log. The terminal evaluates the location and time criterion based on the target area and its location during the time period, e.g., based on at least one sector ID for the target area and one or more sector IDs for its location. The terminal determines whether to download and/or present broadcast information based on the result of the evaluation.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: March 8, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Donald William Gillies, Charles N. Lo, Stephen W. Edge
  • Patent number: 9264481
    Abstract: Embodiments enable HTTP servers to pass incomplete and/or corrupted files in response to file requests from clients. In the various embodiments, HTTP servers may be enabled to generate status codes identifying that an incomplete version of a file is being returned in response to a file request. In an embodiment, an HTTP server may be enabled to determine the ability of a client to handle incomplete versions of files.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 16, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Gordon Kent Walker, Michael G. Luby, Nagaraju Naik, Jack S. Shauh, Kuo-Chun Lee, Yinian Mao, Thomas Stockhammer, Charles N. Lo, Kevin R. Fall
  • Patent number: 9241178
    Abstract: Systems, methods, and receiver devices enable broadcasters with restricted content license areas (e.g., Designated Market Areas (“DMAs”) to distribute content via Over the Top (“OTT”) IP networks. Embodiments enable client reporting and authentication as well as broadcast content encryption. In an embodiment, information from the client may be reported back to the broadcasters, such as a view history/use report. In an embodiment, hand off between DMAs may be enabled. In an embodiment, local advertisement insertion in network content may be enabled. Embodiments may enable Multicast-Broadcast Single Frequency Network (“MBSFN”) operation across DMA boundaries.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: January 19, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Gordon Kent Walker, Charles N. Lo, Jun Wang, Daphna Zeilingold, Joseph P. Barone, Ed O. Tiongson
  • Patent number: 9136958
    Abstract: A method, an apparatus, and a computer program product are provided in connection with facilitating hybrid unicast/broadcast service distribution. In one example, a communications device is equipped to provide a parity portion of titles in a channel of a service to a plurality of UEs at a first time, receive, from a UE at a second time, a request to access a title of the one or more titles, and provide an enablement item, to the requesting UE, which is a portion of the requested title that, when processed with the provided parity portion of the requested title, is sufficient to allow the requesting UE to decode and access to the requested title. In an aspect, the parity portion may be a parity portion of a fountain code encoded title, and the enablement item may be repair symbols of the fountain code encoded title.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 15, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Gordon Kent Walker, Charles N. Lo, Chaitali Gupta, Matthew Stuart Grob, Nagaraju Naik, Jun Wang, Michael G. Luby
  • Patent number: 9100675
    Abstract: Methods and systems enable receiver devices to receive electronic coupons from mobile TV broadcast service providers. Coupon templates may be broadcasted to mobile devices. Coupon templates may be used to communicate with coupon managers to receive digitally signed coupons. Coupon managers may use received data to create digitally signed coupons for delivery to receiver devices via a unicast networks. Digitally signed coupons may also be broadcasted to receiver devices. A receiver device may verify received electronic coupons using the digital signature to identify those coupons intended for them. The electronic coupons may be redeemed at a point of sale. Merchants may locally verify coupons using their digital signature. Coupon digital signatures may be generated using a chain of X.509 certificates leading to a root X.509 coupon-signing authority to enable recipients to confirm that coupons originated from a trustworthy entity.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: August 4, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Donald William Gillies, Charles N. Lo
  • Publication number: 20150215655
    Abstract: Systems, methods, and receiver devices enable broadcasters with restricted content license areas (e.g., Designated Market Areas (“DMAs”) to distribute content via Over the Top (“OTT”) IP networks. Embodiments enable client reporting and authentication as well as broadcast content encryption. In an embodiment, information from the client may be reported back to the broadcasters, such as a view history/use report. In an embodiment, hand off between DMAs may be enabled. In an embodiment, local advertisement insertion in network content may be enabled. Embodiments may enable Multicast-Broadcast Single Frequency Network (“MBSFN”) operation across DMA boundaries.
    Type: Application
    Filed: April 3, 2015
    Publication date: July 30, 2015
    Inventors: Gordon Kent WALKER, Charles N. LO, Jun WANG, Daphna ZEILINGOLD, Joseph P. BARONE, Ed O. TIONGSON
  • Patent number: 9055040
    Abstract: Disclosed is a method for securely presenting content in a mobile station. The mobile station may have a smart module, a security agent, and an air interface for communicating with a content provider and with a remote content rights manager. The smart module stores content presentation units and has a proxy content rights manager for when the mobile station is unable to receive secure content keys from the remote content rights manager using the air interface. In the method, content presentation units are transferred from the remote rights manager to the smart module for storage. Secure content keys are requested from the smart module for allowing presentation of content requested while the mobile station is unable to communicate with the remote rights manager. The secure content keys are transferred, based on a stored content presentation unit, from the proxy content rights manager to the security agent for allowing content presentation.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: June 9, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Jun Wang, Charles N. Lo, Lakshminath Reddy Dondeti, Philip Michael Hawkes
  • Patent number: 9026671
    Abstract: In one example, a device includes one or more processing units configured to send, via a network, a request to retrieve at least a portion of media content, wherein the media content conforms to dynamic adaptive streaming over HTTP (DASH), and wherein the request comprises a request that the at least portion be delivered according to a file delivery service, and, in response to the request, to receive streaming data for the at least portion of the media content in accordance with the file delivery service over the network. The device may prepopulate a browser cache with the received data, such that a browser can, in effect, stream data using the file delivery service. The device may initially retrieve data of the media content using unicast, until a switch point of the data received via the file delivery service is reached.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: May 5, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Donald W. Gillies, Charles N. Lo, Michael G. Luby, Thomas Stockhammer
  • Patent number: 9009764
    Abstract: Systems, methods, and receiver devices enable broadcasters with restricted content license areas (e.g., Designated Market Areas (“DMAs”) to distribute content via Over the Top (“OTT”) IP networks. Embodiments enable client reporting and authentication as well as broadcast content encryption. In an embodiment, information from the client may be reported back to the broadcasters, such as a view history/use report. In an embodiment, hand off between DMAs may be enabled. In an embodiment, local advertisement insertion in network content may be enabled. Embodiments may enable Multicast-Broadcast Single Frequency Network (“MBSFN”) operation across DMA boundaries.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: April 14, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Gordon Kent Walker, Charles N. Lo, Jun Wang, Daphna Zeilingold, Joseph P. Barone, Ed O. Tiongson
  • Patent number: 8849183
    Abstract: Techniques for sending and receiving broadcast information are described. In an aspect, broadcast metadata may be generated for broadcast information and may include location and time criteria used by terminals to filter the broadcast information. Each location and time criterion may include (i) a location criterion given by a target location and a presence or absence requirement and (ii) a time criterion given by a time period in which the location criterion applies. A terminal may receive the broadcast metadata prior to or with the broadcast information, obtain location and time criteria from the broadcast metadata, and filter the broadcast information based on the location and time criteria. The terminal may evaluate each location and time criterion by determining its location within a specified time period and determining whether its location is within or outside a specified target location, as indicated by the presence or absence requirement.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: September 30, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Stephen W. Edge, Andreas K. Wachter, Prasanna Kannan, Charles N. Lo
  • Publication number: 20140201323
    Abstract: A proxy unit is configured to obtain mapping information that maps an identifier for media data to a resource location based on a service for retrieving the media data, wherein the service defines at least one of a plurality of types of transports for transporting the media data, receive a request for the media data from an application service client, determine whether the service is available, and, when the service is available, cause the application service client to receive the media data from a unit that receives the media data using the service from the resource location, based on the mapping information. In this manner, the application service client may receive media data from the unit (e.g., a middleware unit), which then receives the media data using a service that defines transport according to, e.g., broadcast or multicast transport, or another fashion (e.g., unicast) if the defined transport is unavailable.
    Type: Application
    Filed: January 13, 2014
    Publication date: July 17, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Kevin Roland Fall, Nagaraju Naik, Thomas Stockhammer, Fatih Ulupinar, Carlos Marcelo Dias Pazos, Charles N. Lo
  • Patent number: 8689247
    Abstract: Methods and systems enable receiving on mobile devices credits, tokens or coupons from mobile TV broadcast service providers. Credits may be delivered via direct unicast messages such as SMS or e-mail, or via broadcast provisioning messages. Subscription response messages may be used to deliver credits to mobile devises which transmit a request for service. Broadcast service providers may push credits to mobile devices by transmitting a solicited pull message or a credit grant push message. Credits may be sent to mobile devices within a credit response message or a long term decryption key message. Credits may be used a purchase transaction, with the broadcast service provider controlling redemption of credits by sending an a long term decryption key message via a unicast network or a short term decryption key message via the broadcast network to cause mobile devices to decrement their stored credits.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: April 1, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Charles N. Lo, Donald William Gillies, Aram Perez, Lakshminath Reddy Dondeti
  • Patent number: 8635526
    Abstract: The disclosure is directed to an access terminal. The access terminal includes a display configured to enable a user to view a presentation having content, and a processing component configured to receive the presentation and select an advertisement to insert into the content of the presentation before the presentation is provided to the display for viewing by the user.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: January 21, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Jun Wang, Bruce Collins, Christopher John Bennett, Charles N. Lo, Gordon Kent Walker, Haipeng Jin, Lakshminath Reddy Dondeti, Randall Coleman Gellens
  • Patent number: 8621520
    Abstract: Methods and systems enable application content for use by an application running on a receiver device to be broadcast by a mobile multimedia broadcast network for energy-efficient reception and use by receiver devices. Information about application content that will be broadcast is broadcast in application metadata messages. Receiver devices may receive such application metadata messages in a broadcast receiver client which passes the information to the application. The application may inform the broadcast receiver client of particular application content or filtering attributes to use in selecting application content to be received. The broadcast receiver client receives the indicated application content at the designated broadcast time and passes the received content to the application for processing. In an embodiment the application is a Mobile Billboard Advertising (MobAd) application, the application metadata includes attributes about ad content and the broadcast application content includes ad content.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: December 31, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Charles N. Lo, Donald W. Gillies, Mark G. Staskauskas