Patents by Inventor Jin Cheol Cho
Jin Cheol Cho 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: 10553381Abstract: The present disclosure discloses an electrical switchgear configured to control an electro-magnet by using the electro-magnet, a critical temperature device, and an electro-magnet control unit without using a bimetal and a mechanical contact. The electro-magnet switches power applied through a power line in response to a flow of control current to a power device connected to a load side. In a critical temperature device, an output current value varies when a temperature of a heating wire, which is connected to the power line, exceeds a critical temperature by supply current flowing to the power device. An electro-magnet control unit, which is realizable with an SCR, allows a flow of control current of the electro-magnet to be generated or cut off in response to the output current value of the critical temperature device.Type: GrantFiled: January 20, 2016Date of Patent: February 4, 2020Assignee: Electronics and Telecommunications Research InstituteInventors: Hyun-Tak Kim, Sungwoo Jo, Sun-Kyu Jung, Jin-cheol Cho
-
Patent number: 10243093Abstract: Electromagnetic sensor of an oxygen-rich vanadium oxide and the system thereof are provided. The electromagnetic sensor of an oxygen-rich vanadium oxide according the embodiment of the present invention comprises; the first substance layer containing silicon doped with an n-type dopant; and the second substance layer arranged on the first substance layer, and containing a vanadium oxide represented by the molecular formula of VxOy. Dopant concentration of the first substance layer can be higher than 1.0×10?5 cm?3 and lower than 1.0×1019 cm?3, while the ratio of y to x in the molecular formula can be larger than 2 and smaller than 2.5.Type: GrantFiled: September 5, 2018Date of Patent: March 26, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun-Tak Kim, Jin Cheol Cho, Tetiana Slusar
-
Publication number: 20190074392Abstract: Electromagnetic sensor of an oxygen-rich vanadium oxide and the system thereof are provided. The electromagnetic sensor of an oxygen-rich vanadium oxide according the embodiment of the present invention comprises; the first substance layer containing silicon doped with an n-type dopant; and the second substance layer arranged on the first substance layer, and containing a vanadium oxide represented by the molecular formula of VxOy. Dopant concentration of the first substance layer can be higher than 1.0×1015 cm?3 and lower than 1.0×1019 cm?3, while the ratio of y to x in the molecular formula can be larger than 2 and smaller than 2.5.Type: ApplicationFiled: September 5, 2018Publication date: March 7, 2019Inventors: Hyun-Tak KIM, Jin Cheol CHO, Tetiana SLUSAR
-
Publication number: 20160233040Abstract: The present disclosure discloses an electrical switchgear configured to control an electro-magnet by using the electro-magnet, a critical temperature device, and an electro-magnet control unit without using a bimetal and a mechanical contact. The electro-magnet switches power applied through a power line in response to a flow of control current to a power device connected to a load side. In a critical temperature device, an output current value varies when a temperature of a heating wire, which is connected to the power line, exceeds a critical temperature by supply current flowing to the power device. An electro-magnet control unit, which is realizable with an SCR, allows a flow of control current of the electro-magnet to be generated or cut off in response to the output current value of the critical temperature device.Type: ApplicationFiled: January 20, 2016Publication date: August 11, 2016Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun-Tak KIM, Sungwoo JO, Sun-Kyu JUNG, Jin-cheol CHO
-
Patent number: 7951880Abstract: The methods and compositions disclosed herein describes a solution containing at least one block co-polymer that is a liquid at lower temperatures and transitions to a gel at higher temperatures. The compositions are useful, for example, as an alternative to saline or silicone-gel as fillers for prostheses.Type: GrantFiled: December 12, 2005Date of Patent: May 31, 2011Assignee: University of Iowa Research FoundationInventors: Tae-Hong Lim, Joon B. Park, Jin Whan Lee, Seok-Jo Yang, Jaehyun Kim, Jin Cheol Cho
-
Patent number: 7581018Abstract: Disclosed is a server system for performing communication over a wireless network. At least one client device transmits and receives data over the wireless network. A server device performs a state monitoring or controlling operation for the at least one client device. In the server device, an encoder compresses and encodes data to be transmitted that includes a double buffer storing the encoded data. A network renderer transmits the data encoded by the encoder to a corresponding client device over the wireless network. A buffer manager detects an overflow of the buffer storing the data encoded by the encoder and issues a control signal for pausing an encoding operation when the overflow is detected. Therefore, the server system can avoid data loss and system shutdown caused by transmission delay and can ensure stability of the server system performing communication with a wireless network.Type: GrantFiled: July 23, 2004Date of Patent: August 25, 2009Assignee: LG Electronics Inc.Inventors: Young Hoon Roh, Jung Ho Kim, Jin Cheol Cho, Jae Won Chang, Sang Hyuk Kang, Sang Mahn Kim, Pan Su Kim, Kwang Hui Hong
-
Patent number: 7401282Abstract: Disclosed are a server system for performing communication over a wireless network and a communication method thereof. The server system comprises at least one client device and a server device for performing a state monitoring operation or a control operation for the client device over the wireless network. When a data packet is sent, the server device begins to send a following packet by variably applying a transmission rate according to a network transmission state when a leading packet has been completely transmitted. Because a transmission rate can be set appropriately to the network state, the number of unnecessary retransmissions can be reduced. Therefore, transmission delay can be avoided and stable and rapid wireless communication can be achieved.Type: GrantFiled: July 23, 2004Date of Patent: July 15, 2008Assignee: LG Electronics Inc.Inventors: Young Hoon Roh, Jung Ho Kim, Jin Cheol Cho, Jae Won Chang, Sang Hyuk Kang, Sang Mahn Kim, Pan Su Kim, Kwang Hui Hong
-
Patent number: 7262810Abstract: A television-watchable refrigerator system and a method for operating the same. A Web pad is detachably mounted on the outer surface of a refrigerator and a television (TV) module or TV antenna module is provided to receive a television signal and wirelessly transmit the received television signal to the Web pad, thereby removing a need for wiring to provide a wired connection of the refrigerator with a television antenna terminal. The TV module or TV antenna module is connected with a television set or television antenna terminal to receive a television signal therefrom and wirelessly transmit the received television signal to the Web pad. The Web pad is detachably mounted on the outer surface of the refrigerator to wirelessly receive the television signal from the TV module or TV antenna module and display it.Type: GrantFiled: October 3, 2003Date of Patent: August 28, 2007Assignee: LG Electronic Inc.Inventors: Young Hoon Roh, Jung Ho Kim, Jin Cheol Cho, Jae Won Chang, Sang Hyuk Kang, Sang Mahn Kim, Pan Su Kim
-
Patent number: 7178349Abstract: A system and method for switching a communication mode of a detachable pad refrigerator, wherein the attachment/detachment of a client pad to/from the refrigerator is sensed and the communication mode of the refrigerator with the client pad is switched to a wired/wireless communication mode according to the sensed result so that signals can be transmitted and received in the switched communication mode. The client pad is detachably attached to the outer surface of the refrigerator. A communication module is installed in the refrigerator to transmit and receive signals to/from the client pad by wire or wirelessly. A refrigerator control unit is adapted to control the communication module to automatically switch the communication mode of the refrigerator with the client pad to the wired/wireless communication mode according to the attachment/detachment of the client pad.Type: GrantFiled: February 3, 2004Date of Patent: February 20, 2007Assignee: LG Electronics Inc.Inventors: Young Hoon Roh, Jung Ho Kim, Jin Cheol Cho, Jae Won Chang, Sang Hyuk Kang, Sang Mahn Kim, Pan Su Kim, Kwang Hui Hong
-
Patent number: 7136940Abstract: An Internet refrigerator with a Web pad and a method for operating the same. The Web pad is detachably mounted on the Internet refrigerator, and transmits and receives data to/from the Internet refrigerator on the basis of a remote display protocol (RDP). The Web pad is a client Web pad detachably mounted on an outer surface of the Internet refrigerator. The client Web pad is adapted to receive a display signal transmitted from the Internet refrigerator and output the received display signal externally. A server control unit is provided to transmit the display signal to the client Web pad on the basis of the remote display protocol such that data processed in the Internet refrigerator is displayed through the client Web pad. Application programs and multimedia data are driven on the basis of the server control unit, resulting in a reduction in work-load on the client Web pad.Type: GrantFiled: November 6, 2003Date of Patent: November 14, 2006Assignee: LG Electronics Inc.Inventors: Young Hoon Roh, Jung Ho Kim, Jin Cheol Cho, Jae Won Chang, Sang Hyuk Kang, Sang Mahn Kim, Pan Su Kim
-
Patent number: 6829904Abstract: An Internet refrigerator with a heat sink uses cold air from the Internet refrigerator itself, without a CPU cooling fan on a main board. The Internet refrigerator includes a main board with a chip set thereon and a temperature sensor that detects a temperature of the main board. A heat sink plate faces a surface of the main board and absorbs heat generated from the chip set. A pipeline having both ends connected to an interior of a cooled compartment of the refrigerator is arranged to contact a lower surface of the main board at a portion thereof. Additionally, a cooling fan can be arranged in the cooled compartment of the refrigerator for introducing cold air from the cooled compartment of the refrigerator into the pipeline.Type: GrantFiled: September 15, 2003Date of Patent: December 14, 2004Assignee: LG Electronics Inc.Inventors: Young Hoon Roh, Jung Ho Kim, Jin Cheol Cho, Jae Won Chang, Sang Hyuk Kang, Sang Mahn Kim, Pan Su Kim
-
Publication number: 20040154318Abstract: A system and method for switching a communication mode of a pad-detachable refrigerator, wherein the attachment/detachment of a client pad to/from the refrigerator is sensed and the communication mode of the refrigerator with the client pad is switched to a wired/wireless communication mode according to the sensed result so that signals can be transmitted and received in the switched communication mode. The client pad is detachably attached to the outer surface of the refrigerator. A communication module set is installed in the refrigerator to transmit and receive signals to/from the client pad by wire or wirelessly. A refrigerator control unit is adapted to control the communication module set to automatically switch the communication mode of the refrigerator with the client pad to the wired/wireless communication mode according to the attachment/detachment of the client pad.Type: ApplicationFiled: February 3, 2004Publication date: August 12, 2004Applicant: LG Electronics Inc.Inventors: Young Hoon Roh, Jung Ho Kim, Jin Cheol Cho, Jae Won Chang, Sang Hyuk Kang, Sang Mahn Kim, Pan Su Kim, Kwang Hui Hong
-
Publication number: 20040093379Abstract: An Internet refrigerator with a Web pad and a method for operating the same. The Web pad is detachably mounted on the Internet refrigerator, and transmits and receives data to/from the Internet refrigerator on the basis of a remote display protocol (RDP). The Web pad is a client Web pad detachably mounted on an outer surface of the Internet refrigerator. The client Web pad is adapted to receive a display signal transmitted from the Internet refrigerator and output the received display signal externally. A server control unit is provided to transmit the display signal to the client Web pad on the basis of the remote display protocol such that data processed in the Internet refrigerator is displayed through the client Web pad. Application programs and multimedia data are driven on the basis of the server control unit, resulting in a reduction in work-load on the client Web pad.Type: ApplicationFiled: November 6, 2003Publication date: May 13, 2004Applicant: LG Electronics Inc.Inventors: Young Hoon Roh, Jung Ho Kim, Jin Cheol Cho, Jae Won Chang, Sang Hyuk Kang, Sang Mahn Kim, Pan Su Kim
-
Publication number: 20040070696Abstract: A television-watchable refrigerator system and a method for operating the same. A Web pad is detachably mounted on the outer surface of a refrigerator and a television (TV) module or TV antenna module is provided to receive a television signal and wirelessly transmit the received television signal to the Web pad, thereby removing a need for wiring to provide a wired connection of the refrigerator with a television antenna terminal. The TV module or TV antenna module is connected with a television set or television antenna terminal to receive a television signal therefrom and wirelessly transmit the received television signal to the Web pad. The Web pad is detachably mounted on the outer surface of the refrigerator to wirelessly receive the television signal from the TV module or TV antenna module and display it.Type: ApplicationFiled: October 3, 2003Publication date: April 15, 2004Applicant: LG Electronics Inc.Inventors: Young Hoon Roh, Jung Ho Kim, Jin Cheol Cho, Jae Won Chang, Sang Hyuk Kang, Sang Mahn Kim, Pan Su Kim
-
Publication number: 20040073620Abstract: A method for operating a home network system which can allow a home server appliance to assign, to a client appliance newly connected to a home network, a unique ID (Identifier or Identity) different from IDs assigned to already connected client appliances, such that all home appliances connected to the home network can be appropriately controlled. As a unique ID is assigned to the client appliance newly connected to the home network so that the newly connected client appliance is automatically bound to the home network, it is assured that different IDs are assigned to the client appliances, made by different manufacturers, connected to the home network. Therefore, a plurality of client appliances can be appropriately discriminated and controlled and the reliability of a control operation can be improved in the home network system.Type: ApplicationFiled: October 7, 2003Publication date: April 15, 2004Applicant: LG Electronics Inc.Inventors: Young Hoon Roh, Jung Ho Kim, Jin Cheol Cho, Jae Won Chang, Sang Hyuk Kang, Sang Mahn Kim, Pan Su Kim
-
Publication number: 20040060320Abstract: An Internet refrigerator with a heat sink uses cold air from the Internet refrigerator itself, without a CPU cooling fan on a main board. The Internet refrigerator includes a main board with a chip set thereon and a temperature sensor that detects a temperature of the main board. A heat sink plate faces a surface of the main board and absorbs heat generated from the chip set. A pipeline having both ends connected to an interior of a cooled compartment of the refrigerator is arranged to contact a lower surface of the main board at a portion thereof. Additionally, a cooling fan can be arranged in the cooled compartment of the refrigerator for introducing cold air from the cooled compartment of the refrigerator into the pipeline.Type: ApplicationFiled: September 15, 2003Publication date: April 1, 2004Applicant: LG Electronics Inc.Inventors: Young Hoon Roh, Jung Ho Kim, Jin Cheol Cho, Jae Won Chang, Sang Hyuk Kang, Sang Mahn Kim, Pan Su Kim
-
Patent number: 6430946Abstract: Structure for mounting a monitor on a refrigerator including the monitor mounted on a front face of the refrigerator for presenting a picture, and a controlling part mounted on a top of the refrigerator for providing a picture signal to the monitor for presenting a state of the refrigerator and internet information, wherein cables connecting the displaying part and the driving circuit are resistant to noise, thereby permitting no trespass into a food space at all and an easy mounting on the door.Type: GrantFiled: January 2, 2001Date of Patent: August 13, 2002Assignee: LG Electronics Inc.Inventors: Young Hoon Roh, Kwang Choon Kim, Jin Cheol Cho
-
Patent number: 6393848Abstract: An Internet refrigerator and a method of operating the Internet refrigerator are disclosed. The Internet refrigerator includes a modem for performing a data communication with remote communication devices through the Internet, a first control section for controlling constituent elements of the refrigerator, a touch panel for producing key signals in accordance with a user's touch, a second control section for controlling other constituent elements of the refrigerator including the first control section in response to the key signals provided from the touch panel and key signals from the remote communication devices, a display section for displaying necessary information under the control of the second control section, and an Internet connection device for connecting the refrigerator to the Internet. The Internet refrigerator operating method uses internal information of the Internet refrigerator and information from the external communication devices.Type: GrantFiled: January 16, 2001Date of Patent: May 28, 2002Assignee: LG Electronics Inc.Inventors: Young Hoon Roh, Kwang Choon Kim, Jin Cheol Cho
-
Publication number: 20010025497Abstract: Structure for mounting a monitor on a refrigerator including the monitor mounted on a front face of the refrigerator for presenting a picture, and a controlling part mounted on a top of the refrigerator for providing a picture signal to the monitor for presenting a state of the refrigerator and internet information, wherein cables connecting the displaying part and the driving circuit are resistant to noise, thereby permitting no trespass into a food space at all and an easy mounting on the door.Type: ApplicationFiled: January 2, 2001Publication date: October 4, 2001Inventors: Young Hoon Roh, Kwang Choon Kim, Jin Cheol Cho
-
Publication number: 20010010516Abstract: An Internet refrigerator and a method of operating the Internet refrigerator are disclosed. The Internet refrigerator includes a modem for performing a data communication with remote communication devices through the Internet, a first control section for controlling constituent elements of the refrigerator, a touch panel for producing key signals in accordance with a user's touch, a second control section for controlling other constituent elements of the refrigerator including the first control section in response to the key signals provided from the touch panel and key signals from the remote communication devices, a display section for displaying necessary information under the control of the second control section, and an Internet connection device for connecting the refrigerator to the Internet. The Internet refrigerator operating method uses internal information of the Internet refrigerator and information from the external communication devices.Type: ApplicationFiled: January 16, 2001Publication date: August 2, 2001Inventors: Young Hoon Roh, Kwang Choon Kim, Jin Cheol Cho