Patents by Inventor Sang Hoon Cha

Sang Hoon Cha 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).

  • Publication number: 20140013370
    Abstract: A broadcasting receiver and a method of determining an operation mode of broadcasting receiver are disclosed. A host device transmits the resource information including A-mode resource information. And a POD receives the resource information and determining an operation mode based on the received resource information and operation mode setting information. The broadcasting receiver can protect content data received from all the transfer protocols including the wired/wireless network and the IP protocol, using the conditional access provided from the conventional cable card. The broadcasting receiver determines whether the host supports the A-mode and determines a method for receiving broadcast data, such that the operation mode of the broadcasting receiver can be properly established according to the determined result.
    Type: Application
    Filed: August 6, 2013
    Publication date: January 9, 2014
    Applicant: LG Electronics Inc.
    Inventor: Sang Hoon Cha
  • Publication number: 20130318565
    Abstract: A broadcasting receiver and a method of determining an operation mode of broadcasting receiver are disclosed. A host device transmits the resource information including A-mode resource information. And a POD receives the resource information and determining an operation mode based on the received resource information and operation mode setting information. The broadcasting receiver can protect content data received from all the transfer protocols including the wired/wireless network and the IP protocol, using the conditional access provided from the conventional cable card. The broadcasting receiver determines whether the host supports the A-mode and determines a method for receiving broadcast data, such that the operation mode of the broadcasting receiver can be properly established according to the determined result.
    Type: Application
    Filed: August 6, 2013
    Publication date: November 28, 2013
    Applicant: LG Electronics Inc.
    Inventor: Sang Hoon Cha
  • Patent number: 8583909
    Abstract: A digital broadcast receiver and a booting method of the digital broadcast receiver are disclosed herein. A method of secure booting of a system in a digital broadcast receiver comprises aligning a plurality of interleaved portions to generate a digital signature, respectively, with an entire firmware image, generating a digital signature of each interleaved portion, selecting a specific interleaved portion, generating a first message digest to read a region of the selected interleaved portion in the entire firmware image and a second message digest from the digital signature of the selected interleaved portion and verifying the firmware image based on the first and second message digest and booting the system in the digital broadcast receiver.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: November 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Sang Hoon Cha, Bong Seok Kim, Chan Gyun Jeong, In Moon Kim
  • Patent number: 8526450
    Abstract: A host device interfacing with a point of deployment (POD) and a method of processing broadcast data are disclosed. Herein, an Internet Protocol (IP) physical interface unit receives an Ethernet frame including broadcast data; and a routing engine transforms the Ethernet frame to an IP packet when a destination address included in the Ethernet frame matches with an address of a pod and routs the transformed IP packet to an extended channel connected to the POD. Accordingly, it is possible to protect contents using a conditional access provided by the existing cable card and process broadcast data received on all types of transmission protocols including an IP protocol over a wired/wireless network using a channel provided for connection between the existing cable card and the host device.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: September 3, 2013
    Assignee: LG Electronics Inc.
    Inventor: Sang Hoon Cha
  • Patent number: 8528030
    Abstract: A broadcasting receiver and a method of determining an operation mode of broadcasting receiver are disclosed. A host device transmits the resource information including A-mode resource information. And a POD receives the resource information and determining an operation mode based on the received resource information and operation mode setting information. The broadcasting receiver can protect content data received from all the transfer protocols including the wired/wireless network and the IP protocol, using the conditional access provided from the conventional cable card. The broadcasting receiver determines whether the host supports the A-mode and determines a method for receiving broadcast data, such that the operation mode of the broadcasting receiver can be properly established according to the determined result.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: September 3, 2013
    Assignee: LG Electronics Inc.
    Inventor: Sang Hoon Cha
  • Patent number: 8503447
    Abstract: A broadcast receiver and a channel information processing method are disclosed. A network interface transmits and receives an Internet Protocol (IP) packet. A controller detects broadcast data included in the IP packet received by the network interface and parses the detected broadcast data to obtain virtual channel information and physical channel information. The channel information is transmitted based on service discovery & selection (SD&S). The virtual channel information is transmitted in a broadcast discovery record and the physical channel information is transmitted in a cable network information record.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: August 6, 2013
    Assignee: LG Electronics Inc.
    Inventors: Joon Hui Lee, Sang Hoon Cha, Jae Hyung Song
  • Patent number: 8429278
    Abstract: A broadcasting receiver and method of interfacing resource information between a host device and a POD, sending host device resource information and obtaining host device resource information are disclosed. A POD sends a resource information requesting message. And a host device receives the resource information requesting message and responds with a resource information message including a resource identifier defined in a resource information table which includes information indicating whether the host device supports A-mode. Using a “conditional access” feature provided by a conventional cable security card, content received through any type of transport protocol (including an IP protocol) including a wired/wireless network can be protected and A-mode resource information can be systematically defined together with other-mode IP communication resource and the resource information of different modes can be integrated and transmitted to the host device.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: April 23, 2013
    Assignee: LG Electronics Inc.
    Inventors: Sang Hoon Cha, Bong Seok Kim
  • Patent number: 8302146
    Abstract: A broadcast receiving apparatus, application transmitting/receiving method and reception status information transmitting method are disclosed, by which information associated with a broadcast reception status can be transmitted to a broadcast transmitting terminal and by which a problem of a storage device can be transmitted to a broadcast transmitting terminal in advance in case of attempting to receive an application or the like that will be transmitted by the broadcast transmitting terminal. The present invention includes collecting information indicating a remaining size of the storage device and transmitting the collected information according to a network management protocol.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: October 30, 2012
    Assignee: LG Electronics Inc.
    Inventors: Sang Hoon Cha, Kyung Ho Kim
  • Patent number: 8285890
    Abstract: A host device, a point of deployment (POD), and a method for recognizing an operation mode are disclosed. The host device interfaces with a point of deployment (POD), and includes an interface unit and a controller. The interface unit includes CD1#, CD2#, VS1#, VS2#, VPP1, VPP2, and IPDET ports. The controller outputs a mode confirmation signal to the POD via the IPDET port, and identifies that the POD supports an Internet Protocol (IP) Card M-Mode when the mode confirmation signal has been applied to the VS1# and VS2# ports.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: October 9, 2012
    Assignee: LG Electronics Inc.
    Inventors: Sang Hoon Cha, Kwang Hun Kwon, Sung Ho Hwang
  • Patent number: 8285891
    Abstract: A host device, POD (point of deployment) and a method of identifying an operation mode are disclosed, by which data received via internet can be processed. The present invention includes an interface unit including CD#1, CD#2 , VS1#, VS2#, VPP1, VPP2 and IPDET ports and a controller controlling a mode confirmation signal to be outputted to the POD via the IPDET port, the controller recognizing that the POD supports an IP (internet protocol) card M-mode if the outputted mode confirmation signal is inputted to the VS1# port.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: October 9, 2012
    Assignee: LG Electronics Inc.
    Inventors: Sang Hoon Cha, Kwang Hun Kwon, Sung Ho Hwang
  • Patent number: 8266668
    Abstract: A host is configured to communicate with a video data recording device. The host includes a host controller configured to receive a video data recording device diagnostic information request originated external to the host. The host controller further configured to collect the video data recording device diagnostic information from the video data recording device in response to the external request.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: September 11, 2012
    Assignee: LG Electronics Inc.
    Inventor: Sang Hoon Cha
  • Patent number: 8250621
    Abstract: A broadcasting receiver and a method for upgrading firmware of a cable card are disclosed. When firmware upgrading of the cable card is completed and a reset request is transmitted from the cable card to a host, if an application which is being executed is affected by rebooting of the cable card, the host defers the reset, so that a user can normally use the existing application service through the cable broadcasting receiver.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: August 21, 2012
    Assignee: LG Electronics Inc.
    Inventor: Sang Hoon Cha
  • Patent number: 8160424
    Abstract: A host includes a controller configured to collect video data recording device diagnostic information from a video data recording device. The controller is further configured to control displaying of the video data recording device diagnostic information.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: April 17, 2012
    Assignee: LG Electronics Inc.
    Inventors: Sang Hoon Cha, Kwang Hun Kwon
  • Publication number: 20120066710
    Abstract: A broadcasting receiver and method of interfacing resource information between a host device and a POD, sending host device resource information and obtaining host device resource information are disclosed. A POD sends a resource information requesting message. And a host device receives the resource information requesting message and responds with a resource information message including a resource identifier defined in a resource information table which includes information indicating whether the host device supports A-mode. Using a “conditional access” feature provided by a conventional cable security card, content received through any type of transport protocol (including an IP protocol) including a wired/wireless network can be protected and A-mode resource information can be systematically defined together with other-mode IP communication resource and the resource information of different modes can be integrated and transmitted to the host device.
    Type: Application
    Filed: November 18, 2011
    Publication date: March 15, 2012
    Inventors: Sang Hoon Cha, Bong Seok Kim
  • Publication number: 20120063457
    Abstract: A host device interfacing with a point of deployment (POD) and a method of processing broadcast data are disclosed. Herein, an Internet Protocol (IP) physical interface unit receives an Ethernet frame including broadcast data; and a routing engine transforms the Ethernet frame to an IP packet when a destination address included in the Ethernet frame matches with an address of a pod and routs the transformed IP packet to an extended channel connected to the POD. Accordingly, it is possible to protect contents using a conditional access provided by the existing cable card and process broadcast data received on all types of transmission protocols including an IP protocol over a wired/wireless network using a channel provided for connection between the existing cable card and the host device.
    Type: Application
    Filed: November 22, 2011
    Publication date: March 15, 2012
    Inventor: Sang Hoon CHA
  • Patent number: 8086742
    Abstract: A broadcasting receiver and method of interfacing resource information between a host device and a POD, sending host device resource information and obtaining host device resource information are disclosed. A POD sends a resource information requesting message. And a host device receives the resource information requesting message and responds with a resource information message including a resource identifier defined in a resource information table which includes information indicating whether the host device supports A-mode. Using a “conditional access” feature provided by a conventional cable security card, content received through any type of transport protocol (including an IP protocol) including a wired/wireless network can be protected and A-mode resource information can be systematically defined together with other-mode IP communication resource and the resource information of different modes can be integrated and transmitted to the host device.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: December 27, 2011
    Assignee: LG Electronics Inc.
    Inventors: Sang Hoon Cha, Bong Seok Kim
  • Patent number: 8085798
    Abstract: A host device interfacing with a point of deployment (POD) and a method of processing broadcast data are disclosed. Herein, an Internet Protocol (IP) physical interface unit receives an Ethernet frame including broadcast data; and a routing engine transforms the Ethernet frame to an IP packet when a destination address included in the Ethernet frame matches with an address of a pod and routs the transformed IP packet to an extended channel connected to the POD. Accordingly, it is possible to protect contents using a conditional access provided by the existing cable card and process broadcast data received on all types of transmission protocols including an IP protocol over a wired/wireless network using a channel provided for connection between the existing cable card and the host device.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: December 27, 2011
    Assignee: LG Electronics Inc.
    Inventor: Sang Hoon Cha
  • Publication number: 20110138164
    Abstract: A digital broadcast receiver and a booting method of the digital broadcast receiver are disclosed herein. A method of secure booting of a system in a digital broadcast receiver comprises aligning a plurality of interleaved portions to generate a digital signature, respectively, with an entire firmware image, generating a digital signature of each interleaved portion, selecting a specific interleaved portion, generating a first message digest to read a region of the selected interleaved portion in the entire firmware image and a second message digest from the digital signature of the selected interleaved portion and verifying the firmware image based on the first and second message digest and booting the system in the digital broadcast receiver.
    Type: Application
    Filed: December 6, 2010
    Publication date: June 9, 2011
    Applicant: LG ELECTRONICS INC.
    Inventors: Sang Hoon Cha, Bong Seok Kim, Chan Gyun Jeong, In Moon Kim
  • Patent number: 7944917
    Abstract: A host device interfacing with a point of deployment (POD) and a method of processing a broadcasting data are disclosed. An IP physical interface unit receives a frame including an internet protocol (IP) packet carrying broadcast data through a network modem. A Routing Engine transforms the frame to an IP packet and routs the IP packet based on a destination information included in the frame. And a Multiplexer generates an IP MPEG packet by appending a Packet Header carrying identification information to the IP packet, multiplexes the IP MPEG packet and forwards the multiplexed IP packet to the POD.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: May 17, 2011
    Assignee: LG Electronics Inc.
    Inventor: Sang Hoon Cha
  • Patent number: 7944916
    Abstract: A host device interfacing with a point of deployment (POD) and method of processing broadcasting data are disclosed. An IP physical interface unit receives a frame including an internet protocol (IP) packet carrying broadcast data through a network modem. A routing engine routs the frame based on a destination information included in the frame. An IP to TS Decapsulator extracts a MPEG-2 TS packet from the IP packet included in the routed frame. And a multiplexer augments the extracted MPEG-2 TS packet with Packet Header carrying an identification information, multiplexes the augmented MPEG-2 TS packet and forwards the multiplexed MPEG-2 TS to the POD.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: May 17, 2011
    Assignee: LG Electronics Inc.
    Inventors: Sang Hoon Cha, Bong Seok Kim