Patents by Inventor Seon Wook Kim
Seon Wook Kim 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: 9824029Abstract: A memory device includes: a main block that includes a plurality of first pages that are accessible based on a multi-bit address; and a sub-block that includes a plurality of second pages that are accessible based on a portion of bits of the multi-bit address, and stores a replacement data for replacing entire or a portion of the data of an accessed first page among the plurality of the first pages in a second page that stores the same tags as the other bits of the multi-bit address among the accessed second pages.Type: GrantFiled: October 25, 2016Date of Patent: November 21, 2017Assignees: SK Hynix Inc., Korea University Research and Business FoundationInventors: Ho-Kyoon Lee, Il Park, Seon-Wook Kim
-
Publication number: 20170270054Abstract: A memory device includes: a main block that includes a plurality of first pages that are accessible based on a multi-bit address; and a sub-block that includes a plurality of second pages that are accessible based on a portion of bits of the multi-bit address, and stores a replacement data for replacing entire or a portion of the data of an accessed first page among the plurality of the first pages in a second page that stores the same tags as the other bits of the multi-bit address among the accessed second pages.Type: ApplicationFiled: October 25, 2016Publication date: September 21, 2017Inventors: Ho-Kyoon LEE, Il PARK, Seon-Wook KIM
-
Publication number: 20170185513Abstract: A memory system may include a first cache memory including a plurality of regions, which are accessed using a first address, and in each of which an indication of whether cached data is present and a second address are stored. A memory system may also include a second cache memory configured to be accessed using the second address stored in an accessed region of the first cache memory when, as a result of an access of the first cache memory, cached data is present. Still further, a memory system may include a main memory configured to be accessed using the first address when, as the result of the access of the first cache memory, cached data is not present.Type: ApplicationFiled: November 4, 2016Publication date: June 29, 2017Inventors: Ho-Kyoon LEE, Il PARK, Seon-Wook KIM
-
Patent number: 9136977Abstract: This invention relates to a data transmission method in a passive communication system being wirelessly powered up and being passively operable, without using its own power, for data transmission and reception, such as in a passive RFID (Radio Frequency IDentification) communication system, which is capable of effectively configuring a message transmitted by a passive device, thereby providing improved transmission efficiency.Type: GrantFiled: January 24, 2011Date of Patent: September 15, 2015Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATIONInventors: Seon Wook Kim, Jong-Ok Kim, Seok Joong Hwang
-
Patent number: 8902047Abstract: Provided are a radio frequency identification (RFID) system including an RFID reading apparatus and a passive RFID tag and a method of transferring and/or processing data using the same. An RFID reading apparatus includes a data input unit which receives data to be transferred to a passive RFID tag, a control unit which generates a transmission packet containing the data and a command directing data transfer, and a communication unit which converts the generated transmission packet into an RF signal and transfers the converted RF signal to the passive RFID tag.Type: GrantFiled: October 28, 2008Date of Patent: December 2, 2014Assignees: Samsung Electronics Co., Ltd., Korea University Industrial & Academic Collaboration FoundationInventors: Ja-nam Ku, Seon-wook Kim, Joon-goo Lee
-
Patent number: 8873532Abstract: An apparatus and a method for a random access scheme for multi-channel in a wireless communication system are provided. The method for performing the random access scheme for the multi-channel in the wireless communication system includes randomly generating a backoff counter value to transmit data; adjusting the backoff counter value by taking into account status of a plurality of idle subcarrier sets per backoff slot; when the backoff counter value becomes zero, selecting one or more subcarrier sets to carry the data from the idle subcarrier sets; and transmitting the data through the selected one or more subcarrier sets. The data collision probability between the terminals can be lowered, the channel utility can be enhanced, the transfer rate in the single-channel random access scheme can be raised, and the consumption of the radio resource can be reduced without using signals for the band request and allocation.Type: GrantFiled: January 29, 2009Date of Patent: October 28, 2014Assignees: Samsung Electronics Co., Ltd., Seoul National University Industry FoundationInventors: Ho-Joong Kwon, Han-Byul Seo, Seon-Wook Kim, Byeong-Gi Lee, Jong-Hyung Kwun, Ok-Seon Lee
-
Patent number: 8780747Abstract: A method of controlling uplink access in a wireless communication system is provided. The method includes: generating an access probability sequence consisting of an access probability determined with respect to a radio resource used for data transmission; transmitting data according to the access probability included in the access probability sequence; receiving a success/failure result on the data transmission; and regulating the access probability used in the data transmission according to the success/failure result. Accordingly, each user equipment performs a simple control process for attempting random uplink access according to an access probability sequence and for changing the access probability sequence according to success/failure of uplink data transmission, thereby decreasing a probability of collision between user equipments, thereby increasing data transmission efficiency in a system employing a plurality of user equipments.Type: GrantFiled: April 30, 2010Date of Patent: July 15, 2014Assignees: LG Electronics Inc., SNU R & DB FoundationInventors: Han Byul Seo, Seon Wook Kim, Min Soo Na, Sung Hyun Choi, Seo Shin Kwack
-
Patent number: 8750912Abstract: A method of allocating uplink resources in a wireless communication system is provided. The method comprises generating a first message which has a preamble and adaptively further includes resource request information based on a communication state with a base station and transmitting the first message to the base station.Type: GrantFiled: August 18, 2009Date of Patent: June 10, 2014Assignees: LG Electronics Inc., SNU R&DB FoundationInventors: Han Byul Seo, Seon Wook Kim, Seo Shin Kwack, Min Soo Na, Byoung Hoon Kim, Sung Hyun Choi
-
Patent number: 8598987Abstract: In a method of communicating in a radio frequency identification (RFID) system including a RFID reader and a plurality of RFID tags, a plurality of spread spectrum data are stored in the plurality of RFID tags. The plurality of spread spectrum data are transmitted from the plurality of RFID tags to the RFID reader. A plurality of original data respectively corresponding to the plurality of RFID tags are simultaneously extracted from the plurality of spread spectrum data at the RFID reader.Type: GrantFiled: February 12, 2010Date of Patent: December 3, 2013Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business FoundationInventors: Ji-Hun Koo, Young-Hoon Min, Seon-Wook Kim, Joon-Goo Lee, Young-Sun Han
-
Patent number: 8448150Abstract: The present invention is directed to a method and system for translating a high-level language (HLL) code such as C, C++, Fortran, Java or the like into a HDL code such as Verilog or VHDL which requires no modification in the original HLL source code, while supporting a cross call between software and hardware, and even recursive calls in hardware. The system includes: a HLL-to-HLL source translator which reads user programming directive from a translation-targeted high-level language code marked with the user directive, and separates the translation-targeted high-level language code into a hardware code part and a software code part; a main compiler which compiles the software code part; a HLL-to-HDL translator which includes the front-end and middle-end of the main compiler and a HDL backend; a main core which executes the compiled software code part; and a dedicated hardware which executes the HDL code.Type: GrantFiled: October 30, 2009Date of Patent: May 21, 2013Assignee: Korea University Industrial & Academic Collaboration FoundationInventors: Seon Wook Kim, Thi Huong Giang Nguyen
-
Publication number: 20130113611Abstract: This invention relates to a data transmission method in a passive communication system being wirelessly powered up and being passively operable, without using its own power, for data transmission and reception, such as in a passive RFID (Radio Frequency IDentification) communication system, which is capable of effectively configuring a message transmitted by a passive device, thereby providing improved transmission efficiency.Type: ApplicationFiled: January 24, 2011Publication date: May 9, 2013Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATIONInventors: Seon Wook Kim, Jong-Ok Kim, Seok Joong Hwang
-
Patent number: 8336036Abstract: The present invention is directed to a method and system for translating a high programming level language code such as C, C++, Fortran, Java or the like into a HDL code such as Verilog or VHDL. The system includes: a C-to-C source translator which reads user API from a translation-targeted high level language code marked with the user API, separates the translation-targeted high level language code into a hardware code part and a software code part, and stores the hardware code part and the software code part in separate files; a main compiler which compiles the stored software code part; a translator which translates the stored hardware code part into a HDL code including one or more block modules and one top module; a main core which executes the compiled software code part; and a dedicated hardware which executes the HDL code.Type: GrantFiled: February 25, 2009Date of Patent: December 18, 2012Assignee: Korea University Industrial & Academic Collaboration FoundationInventors: Seon Wook Kim, Thi Huong Giang Nguyen
-
Publication number: 20120051251Abstract: A method of controlling uplink access in a wireless communication system is provided. The method includes: generating an access probability sequence consisting of an access probability determined with respect to a radio resource used for data transmission; transmitting data according to the access probability included in the access probability sequence; receiving a success/failure result on the data transmission; and regulating the access probability used in the data transmission according to the success/failure result. Accordingly, each user equipment performs a simple control process for attempting random uplink access according to an access probability sequence and for changing the access probability sequence according to success/failure of uplink data transmission, thereby decreasing a probability of collision between user equipments, thereby increasing data transmission efficiency in a system employing a plurality of user equipments.Type: ApplicationFiled: April 30, 2010Publication date: March 1, 2012Inventors: Han Byul Seo, Seon Wook Kim, Min Soo Na, Sung Hyun Choi, Seo Shin Kwack
-
Publication number: 20110187508Abstract: The invention provides an RFID tag for storing large scale multimedia contents data readable only when it is authenticated, remote authentication for accessing the multimedia contents data stored in the RFID tag, and a wireless communication system and method for transmitting/receiving the multimedia contents on a radio frequency through the authentication.Type: ApplicationFiled: April 13, 2011Publication date: August 4, 2011Applicant: Korea University Industrial & Academic Collaboraton FoundationInventors: Seon Wook KIM, Young Sun Han
-
Publication number: 20110111784Abstract: A method of allocating uplink resources in a wireless communication system is provided. The method comprises generating a first message which has a preamble and adaptively further includes resource request information based on a communication state with a base station and transmitting the first message to the base station.Type: ApplicationFiled: August 18, 2009Publication date: May 12, 2011Inventors: Han Byul Seo., Seon Wook Kim, Seo Shin Kwack, Min Soo Na, Byoung Hoon Kim, Sung Hyun Choi
-
Publication number: 20100201492Abstract: In a method of communicating in a radio frequency identification (RFID) system including a RFID reader and a plurality of RFID tags, a plurality of spread spectrum data are stored in the plurality of RFID tags. The plurality of spread spectrum data are transmitted from the plurality of RFID tags to the RFID reader. A plurality of original data respectively corresponding to the plurality of RFID tags are simultaneously extracted from the plurality of spread spectrum data at the RFID reader.Type: ApplicationFiled: February 12, 2010Publication date: August 12, 2010Inventors: Ji-Hun Koo, Young-Hoon Min, Seon-Wook Kim, Joon-Goo Lee, Young-Sun Han
-
Patent number: 7741955Abstract: Method for rapidly detecting identifier (ID) of tags, by radio frequency identification (RFID) reader in communication system that includes RFID reader and at least two tags communicating with RFID reader, is provided. RFID reader generates a prefix when IDs contained in at least two messages received collide with each other, prefix including a first colliding bit, which is set to ‘0’ or ‘1’, from high-order bits and non-colliding high-order bits. RFID reader sends a first message containing information that requests transmission of an assigned ID in a preset transmission period when the bits of the generated prefix match bits corresponding to the prefix, in the assigned ID. Tags receive a first message that contains a prefix including at least one bit, and sends a second message containing an assigned ID during a preset transmission period when the bits of the prefix match bits corresponding to the prefix, in assigned ID.Type: GrantFiled: December 27, 2005Date of Patent: June 22, 2010Assignee: Samsung Electro-Mechanics Co., LtdInventors: Kyung-ho Park, Woo-shik Kang, Young-hwan Jung, Sun-shin An, Seon-wook Kim
-
Patent number: 7728714Abstract: When a reader of a Radio Frequency Identification (RF-ID) system sends out a command signal to the RF-ID tag and receives a response signal from the RF-ID tag, an End of Signal (EOS) of the received response signal is detected such that the next command signal can be transmitted within a time. Accordingly, response signal can be detected even under the environment of poor signal to noise ratio performance, and the EOS of the response signal from the RF-ID tag can be recognized with ease and speed.Type: GrantFiled: September 19, 2006Date of Patent: June 1, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Ji-hun Koo, Woo-shik Kang, Jin-young Yang, Seon-wook Kim, Seok-joong Hwang
-
Publication number: 20100131934Abstract: The present invention is directed to a method and system for translating a high-level language (HLL) code such as C, C++, Fortran, Java or the like into a HDL code such as Verilog or VHDL which requires no modification in the original HLL source code, while supporting a cross call between software and hardware, and even recursive calls in hardware. The system includes: a HLL-to-HLL source translator which reads user programming directive from a translation-targeted high-level language code marked with the user directive, and separates the translation-targeted high-level language code into a hardware code part and a software code part; a main compiler which compiles the software code part; a HLL-to-HDL translator which includes the front-end and middle-end of the main compiler and a HDL backend; a main core which executes the compiled software code part; and a dedicated hardware which executes the HDL code.Type: ApplicationFiled: October 30, 2009Publication date: May 27, 2010Applicant: Korea University Industrial & AcademicInventors: Seon Wook KIM, Thi Huong giang Nguyen
-
Publication number: 20100131933Abstract: The present invention is directed to a method and system for translating a high programming level language code such as C, C++, Fortran, Java or the like into a HDL code such as Verilog or VHDL. The system includes: a C-to-C source translator which reads user API from a translation-targeted high level language code marked with the user API, separates the translation-targeted high level language code into a hardware code part and a software code part, and stores the hardware code part and the software code part in separate files; a main compiler which compiles the stored software code part; a translator which translates the stored hardware code part into a HDL code including one or more block modules and one top module; a main core which executes the compiled software code part; and a dedicated hardware which executes the HDL code.Type: ApplicationFiled: February 25, 2009Publication date: May 27, 2010Applicant: Korea University Industrial & Academic Collaboration FoundationInventors: Seon Wook Kim, Thi Huong Giang Nguyen