Patents by Inventor Sang Mook Lee
Sang Mook Lee 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: 8675646Abstract: A method for encoding an information object in a communication system by storing the information object in a buffer; generating a sampling set including bits randomly selected from the buffer and bits regularly selected from the buffer; generating control channel data including a sampling set number of the sampling set and size information for the information object; and modulating the sampling set and the control channel data.Type: GrantFiled: December 10, 2010Date of Patent: March 18, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-Won Jung, Jun-Ho Koh, Sang-Mook Lee, Gi-Sang Lee, Sergey Zhidkov
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Publication number: 20130346070Abstract: Disclosed is an acoustic communication method that includes filtering an audio signal to attenuate a high frequency section of the audio signal; generating a residual signal which corresponds to a difference between the audio signal and the filtered signal; generating a psychoacoustic mask for the audio signal based on a predetermined psychoacoustic model; generating a psychoacoustic spectrum mask by combining the residual signal with the psychoacoustic mask; generating an acoustic communication signal by modulating digital data according to the acoustic signal spectrum mask; and combining the acoustic communication signal with the filtered signal.Type: ApplicationFiled: August 27, 2013Publication date: December 26, 2013Applicant: Samsung Electronics Co., Ltd.Inventors: Hee-Won Jung, Jun-Ho Koh, Sang-Mook Lee, Gi-Sang Lee, Sergey Zhidkov
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Patent number: 8521518Abstract: An acoustic communication method and device are provided that filter an audio signal to attenuate a high frequency section of the audio signal. A residual signal is generated that corresponds to a difference between the audio signal and the filtered signal. A psychoacoustic mask is generated for the audio signal based on a predetermined psychoacoustic model. A psychoacoustic spectrum mask is generated by combining the residual signal with the psychoacoustic mask, an acoustic communication signal is generating by modulating digital data according to the acoustic signal spectrum mask, the acoustic communication signal is combined with the filtered signal, and radiating, by a speaker, the combined acoustic communication signal and the filtered signal in a form of sound waves.Type: GrantFiled: December 10, 2010Date of Patent: August 27, 2013Assignee: Samsung Electronics Co., LtdInventors: Hee-Won Jung, Jun-Ho Koh, Sang-Mook Lee, Gi-Sang Lee, Sergey Zhidkov
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Patent number: 8351852Abstract: A method for transmitting, by a mobile device, a data object, is provided, and includes estimating expected transmission times required for transmitting an object between devices by an acoustic communication link and supported radio interfaces, based on a size of the object, transmitting the object through an acoustic communication channel when the link is estimated to provide a shortest expected transmission time, and determining rankings of the radio interfaces according to the expected transmission times when the acoustic communication link does not provide a shortest expected transmission time, transmitting rankings information and configuration information on the supported radio interfaces through the acoustic communication channel by a configuration container, and transmitting the object through a radio interface through which a response is received.Type: GrantFiled: December 10, 2010Date of Patent: January 8, 2013Assignee: Samsung Electronics Co., LtdInventors: Hee-Won Jung, Jun-Ho Koh, Sang-Mook Lee, Gi-Sang Lee, Sergey Zhidkov
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Publication number: 20120177371Abstract: The present invention discloses a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method. In a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method according to the present invention, only one WDM-PON system can provides services for a plurality of subscribers who is distributed in a wide range of area through multiple starring, by setting one or more band for transmitting up-stream signals as an up-stream basic band and one or more band for transmitting down-stream signals as a down-stream basic band, respectively, and by dividing each of the up-stream basic band and the down-stream basic band into a plurality of wavelength sub-bands and assigning the divided sub-bands to different areas using a wavelength division multiplexer/de-multiplexer which splits a band into two or more sub-bands.Type: ApplicationFiled: January 18, 2012Publication date: July 12, 2012Applicant: Korea Advaned Institute of Science and TechnologyInventors: Change-Hee Lee, Sang-Mook Lee, Sil-Gu Mun
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Patent number: 8120741Abstract: A liquid crystal display includes a display panel, a first data circuit board, a second data circuit board, and a clip. The first data circuit board has a portion of a plurality of conductors that are coupled to the display panel. The second data circuit board has a second plurality of conductors that are coupled to the display panel. A clip couples the first and the second circuit boards together. A method of assembling the liquid crystal display includes positioning a light source; coupling a clip to the first circuit board and the second circuit board that form a display panel; positioning the clip, the first circuit board, and the second circuit board below the light source; and coupling the clip to a ground plane.Type: GrantFiled: June 11, 2009Date of Patent: February 21, 2012Assignee: LG Display Co., Ltd.Inventor: Sang Mook Lee
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Publication number: 20110269879Abstract: The present invention relates to a high-strength inflammable blend resin composition including a polyphenylene sulfide resin and a polyethylene terephthalate resin. More specifically, the resin composition of the present invention includes: a basic blend resin containing 10 to 80 wt. % of a polyphenylene sulfide resin, and 20 to 90 wt. % of a polyethylene terephthalate resin; and 0.1 to 20 parts by weight of a modified polystyrene or a styrene-based elastomer with respect to 100 parts by weight of the basic blend resin.Type: ApplicationFiled: December 30, 2009Publication date: November 3, 2011Applicant: SK Chemicals Co., Ltd.Inventors: Sung-Gi Kim, Jae-Bong Lim, Jong-In Lee, Chang-Hyun Lee, Sung-Su Bae, Sang-Mook Lee
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Patent number: 8049618Abstract: An indoor location system having a sensor and a method for checking an indoor location using the indoor location system are disclosed. The method includes: calculating a current location coordinate by using nodes; calculating a first movement distance by comparing the current location coordinate and a stored previous location coordinate; calculating a second movement distance through a sensor; and storing the current location coordinate instead of the previous location coordinate when the distance between the first movement distance and the second movement distance is smaller than a predetermined threshold value. Accordingly, an accurate location of an object can be recognized indoors and an error can be prevented from being caused when the location of the object is recognized.Type: GrantFiled: November 10, 2008Date of Patent: November 1, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Sung Kweon Park, Won Suk Yang, Yun Je Oh, Joon Oo Kim, Jeong Rok Park, Sang Mook Lee, Jin Serk Baik, Do Young Ha
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Publication number: 20110144979Abstract: Disclosed is an acoustic communication method that includes filtering an audio signal to attenuate a high frequency section of the audio signal; generating a residual signal which corresponds to a difference between the audio signal and the filtered signal; generating a psychoacoustic mask for the audio signal based on a predetermined psychoacoustic model; generating a psychoacoustic spectrum mask by combining the residual signal with the psychoacoustic mask; generating an acoustic communication signal by modulating digital data according to the acoustic signal spectrum mask; and combining the acoustic communication signal with the filtered signal.Type: ApplicationFiled: December 10, 2010Publication date: June 16, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Hee-Won Jung, Jun-Ho Koh, Sang-Mook Lee, Gi-Sang Lee, Sergey Zhidkov
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Publication number: 20110142073Abstract: A method for encoding an information object in a communication system by storing the information object in a buffer; generating a sampling set including bits randomly selected from the buffer and bits regularly selected from the buffer; generating control channel data including a sampling set number of the sampling set and size information for the information object; and modulating the sampling set and the control channel data.Type: ApplicationFiled: December 10, 2010Publication date: June 16, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Hee-Won JUNG, Jun-Ho Koh, Sang-Mook Lee, Gi-Sang Lee, Sergey Zhidkov
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Publication number: 20110143677Abstract: A method for transmitting, by a mobile device, a data object, is provided, and includes estimating expected transmission times required for transmitting an object between devices by an acoustic communication link and supported radio interfaces, based on a size of the object, transmitting the object through an acoustic communication channel when the link is estimated to provide a shortest expected transmission time, and determining rankings of the radio interfaces according to the expected transmission times when the acoustic communication link does not provide a shortest expected transmission time, transmitting rankings information and configuration information on the supported radio interfaces through the acoustic communication channel by a configuration container, and transmitting the object through a radio interface through which a response is received.Type: ApplicationFiled: December 10, 2010Publication date: June 16, 2011Inventors: Hee-Won Jung, Jun-Ho Koh, Sang-Mook Lee, Gi-Sang Lee, Sergey Zhidkov
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Publication number: 20100313241Abstract: An authentication system and method in a wireless LAN (WLAN) environment. A terminal transmits an access authentication request to an access point of a WLAN which the terminal desires to access, and transmits its own transmission power information to the access point when receiving a response to the access authentication request from the access point, and the access point measures received signal strength, calculates a path loss value through the use of the received transmission power and the measured received signal strength, and performs access authentication of the terminal according to the calculated path loss value, so that a new terminal can easily access the WLAN where security has been set up.Type: ApplicationFiled: June 3, 2010Publication date: December 9, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Sang-Mook Lee, Seong-Woon Kang, Jong-Hoon Lim, Kyu-Hyung Cho, Joon-Oo Kim
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Publication number: 20100290484Abstract: An encoder includes a precoder for encoding an input information object according to a preset encoding scheme and storing the encoded information object in a precoder buffer, a sample number/address generation unit for generating a sample number of each sample and an address, which corresponds to each bit of each sample and the address of the precoder buffer, a multiplexer for selecting a bit of the precoder buffer corresponding to the address generated by the sample number/address generation module, a sampling buffer for storing a bit of each sample output from the multiplexer, a control packet generation module for generating a control packet including information on the sample number generated by the sample number/address generation module, a packet assembling unit for assembling the sample stored in the sampling buffer with the control packet generated by the control data generation module, and a modulation module for modulating the packet output from the packet assembling unit into a sound signal accordiType: ApplicationFiled: May 18, 2010Publication date: November 18, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Hee-Won JUNG, Seung-Gun Park, Gi-Sang Lee, Jun-Ho Koh, Sang-Mook Lee, Sergey Zhidkov
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Publication number: 20100110837Abstract: An apparatus and method for wireless communication using an acoustic signal in a system including a first device including a loudspeaker and a second device including a microphone. The first device generates wireless communication information, converts the wireless communication information to an acoustic signal, and transmits the acoustic signal to the second device using the loudspeaker. The second device receives the acoustic signal using the microphone, extracts the wireless communication information from the acoustic signal, generates an acknowledgment signal according to the extracted wireless communication information, and transmits the acknowledgment signal to the first device on a wireless communication channel.Type: ApplicationFiled: October 22, 2009Publication date: May 6, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Hee-Won JUNG, Seung-Gun Park, Jun-Ho Ko, Sang-Mook Lee, Gi-Sang Lee, Sergey Zhidkov
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Publication number: 20100046945Abstract: The present invention discloses a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method. In a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method according to the present invention, only one WDM-PON system can provide services for a plurality of subscribers who is distributed in a wide range of area through multiple starring, by setting one or more band for transmitting up-stream signals as an up-stream basic band and one or more band for transmitting down-stream signals as a down stream basic band, respectively, and by dividing each of the up-stream basic band and the down stream basic band into a plurality of wavelength sub-bands and assigning the divided sub-bands to different areas using a wavelength division multiplexer/de-multiplexer which splits a band into two or more sub-bands.Type: ApplicationFiled: December 5, 2006Publication date: February 25, 2010Inventors: Chang-Hee Lee, Sang-Mook Lee, Sil-Gu Mun
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Patent number: 7611368Abstract: A backlight assembly includes: lamps; lamp holders each holding at least one of opposite ends of a corresponding one of the lamps, the lamp holders being electrically connected with external electrodes of the lamps; and a lower frame formed to partially cover the lamp holders such that the lower frame is formed in one unified body with the lamp holders.Type: GrantFiled: May 9, 2008Date of Patent: November 3, 2009Assignee: LG Display Co., Ltd.Inventors: Seok Hwan Oh, Sang Mook Lee
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Patent number: 7602467Abstract: A liquid crystal display includes a display panel, a first data circuit board, a second data circuit board, and a clip. The first data circuit board has a portion of a plurality of conductors that are coupled to the display panel. The second data circuit board has a second plurality of conductors that are coupled to the display panel. A clip couples the first and the second circuit boards together. A method of assembling the liquid crystal display includes positioning a light source; coupling a clip to the first circuit board and the second circuit board that form a display panel; positioning the clip, the first circuit board, and the second circuit board below the light source; and coupling the clip to a ground plane.Type: GrantFiled: June 25, 2004Date of Patent: October 13, 2009Assignee: LG. Display Co., Ltd.Inventor: Sang Mook Lee
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Publication number: 20090253333Abstract: A liquid crystal display includes a display panel, a first data circuit board, a second data circuit board, and a clip. The first data circuit board has a portion of a plurality of conductors that are coupled to the display panel. The second data circuit board has a second plurality of conductors that are coupled to the display panel. A clip couples the first and the second circuit boards together. A method of assembling the liquid crystal display includes positioning a light source; coupling a clip to the first circuit board and the second circuit board that form a display panel; positioning the clip, the first circuit board, and the second circuit board below the light source; and coupling the clip to a ground plane.Type: ApplicationFiled: June 11, 2009Publication date: October 8, 2009Inventor: Sang Mook Lee
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Patent number: 7596317Abstract: An optical network system includes a central office (CO) comprising an A-band BLS to be injected into a light source for downstream signals, an A-band BLS coupling device for coupling the A-band BLS, a first wavelength-division multiplexer/demultiplexer connected to the A-band BLS coupling device for multiplexing/demultiplexing, and a plurality of first optical transceivers connected to the first wavelength-division multiplexer/demultiplexer; a remote node (RN) comprising a B-band BLS coupling device and a second wavelength-division multiplexer/demultiplexer connected to the B-band BLS coupling device for multiplexing/demultiplexing, and being connected to the CO through an optical fiber; and a plurality of optical network terminations (ONTs) including a plurality of second optical transceivers connected to the second wavelength-division multiplexer/demultiplexer, wherein either the RN or one of the plurality of ONTs further includes a B-band BLS to be injected to a light source for upstream signals.Type: GrantFiled: May 10, 2007Date of Patent: September 29, 2009Assignee: Korea Advanced Institute of Science and TechnologyInventors: Chang-Hee Lee, Sang-Mook Lee, Min-Hwan Kim
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Publication number: 20090121867Abstract: An indoor location system having a sensor and a method for checking an indoor location using the indoor location system are disclosed. The method includes: calculating a current location coordinate by using nodes; calculating a first movement distance by comparing the current location coordinate and a stored previous location coordinate; calculating a second movement distance through a sensor; and storing the current location coordinate instead of the previous location coordinate when the distance between the first movement distance and the second movement distance is smaller than a predetermined threshold value. Accordingly, an accurate location of an object can be recognized indoors and an error can be prevented from being caused when the location of the object is recognized.Type: ApplicationFiled: November 10, 2008Publication date: May 14, 2009Inventors: Sung Kweon PARK, Won Suk Yang, Yun Je Oh, Joon Oo Kim, Jeong Rok Park, Sang Mook Lee, Jin Serk Baik, Do Young Ha