Patents by Inventor Tok Kim
Tok 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).
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Patent number: 9462868Abstract: A housing has upper and lower walls. The upper wall has fixed and movable sections. The housing has a fixed end wall and a movable end wall. The housing has side walls. The side walls couple the fixed end wall, the fixed section of the upper wall, and a portion of the lower wall. A first hinge couples the movable end wall with the lower wall remote from the fixed end wall. A second hinge couples the movable end wall and the movable section of the upper wall. A baffle is provided parallel with and spaced from the fixed end wall. The baffle forms first and second zones. The first end zone is provided between the baffle and fixed end wall. The second end zone is provided between the baffle and the side of the baffle remote from the fixed end wall.Type: GrantFiled: November 13, 2013Date of Patent: October 11, 2016Inventor: Yong Tok Kim
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Publication number: 20140068959Abstract: A housing has upper and lower walls. The upper wall has fixed and movable sections. The housing has a fixed end wail and a movable end wall. The housing has side walls. The side walls couple the fixed end wall, the fixed section of the upper wall, and a portion of the lower wall. A first hinge couples the movable end wall with the lower wall remote from the fixed end wall. A second hinge couples the movable end wall and the movable section of the upper wall. A baffle is provided parallel with and spaced from the fixed end wall. The baffle forms first and second zones. The first end zone is provided between the baffle and fixed end wall. The second end zone is provided between the baffle and the side of the baffle remote from the fixed end wall.Type: ApplicationFiled: November 13, 2013Publication date: March 13, 2014Inventor: YONG TOK KIM
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Publication number: 20120317829Abstract: A housing is provided in a generally rectilinear configuration. The housing has input and output openings. The housing has upper and lower and side walls. Primary and secondary chambers are formed between the walls. The primary chamber is positioned between the input and output openings. A plurality of supports are provided within the primary chamber for receiving and supporting portions of the hair of the user. The upper wall has first and second sections. The first section is imperforate and adapted to provide access to the primary chamber. The second section has a plurality of aligned circular apertures over the secondary chamber for removably receiving a blow dryer.Type: ApplicationFiled: January 12, 2012Publication date: December 20, 2012Inventor: YONG TOK KIM
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Patent number: 8031813Abstract: There are provided a VSB receiver and a carrier recovery apparatus thereof, in which a carrier is recovered using a VSB modulated signal. In the VSB receiver, a digital processing part selects a desired channel frequency through an antenna, converts the channel frequency into an intermediate frequency, and digitalizes the channel frequency by passing a predetermined band of the intermediate frequency. A carrier recovery part extracts pilot signals by using a first LPF having a first bandwidth and a second LPF having a second bandwidth, and recovers a baseband carrier wave signal from a passband signal by using one of the extracted pilot signals. A clock demodulation part removes the pilot signal from the baseband carrier wave signal and extracts a synchronizing signal. A noise removing part removes a linear noise and a residual phase jitter of the baseband signal by using the synchronizing signal. A decoding part decodes the baseband signal whose noise is removed.Type: GrantFiled: June 4, 2009Date of Patent: October 4, 2011Assignee: LG Electronics Inc.Inventors: Joon Tae Kim, Tok Kim
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Publication number: 20090245390Abstract: There are provided a VSB receiver and a carrier recovery apparatus thereof, in which a carrier is recovered using a VSB modulated signal. In the VSB receiver, a digital processing part selects a desired channel frequency through an antenna, converts the channel frequency into an intermediate frequency, and digitalizes the channel frequency by passing a predetermined band of the intermediate frequency. A carrier recovery part extracts pilot signals by using a first LPF having a first bandwidth and a second LPF having a second bandwidth, and recovers a baseband carrier wave signal from a passband signal by using one of the extracted pilot signals. A clock demodulation part removes the pilot signal from the baseband carrier wave signal and extracts a synchronizing signal. A noise removing part removes a linear noise and a residual phase jitter of the baseband signal by using the synchronizing signal. A decoding part decodes the baseband signal whose noise is removed.Type: ApplicationFiled: June 4, 2009Publication date: October 1, 2009Inventors: Joon Tae KIM, Tok Kim
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Patent number: 7558340Abstract: There are provided a VSB receiver and a carrier recovery apparatus thereof, in which a carrier is recovered using a VSB modulated signal. In the VSB receiver, a digital processing part selects a desired channel frequency through an antenna, converts the channel frequency into an intermediate frequency, and digitalizes the channel frequency by passing a predetermined band of the intermediate frequency. A carrier recovery part extracts pilot signals by using a first LPF having a first bandwidth and a second LPF having a second bandwidth, and recovers a baseband carrier wave signal from a passband signal by using one of the extracted pilot signals. A clock demodulation part removes the pilot signal from the baseband carrier wave signal and extracts a synchronizing signal. A noise removing part removes a linear noise and a residual phase jitter of the baseband signal by using the synchronizing signal. A decoding part decodes the baseband signal whose noise is removed.Type: GrantFiled: December 1, 2004Date of Patent: July 7, 2009Assignee: LG Electronics Inc.Inventors: Joon Tae Kim, Tok Kim
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Patent number: 7480350Abstract: Provided is a carrier recovery apparatus in a vestigial sideband modulation (VSB) type digital television (DTV) receiver. The carrier recovery apparatus dynamically controls a sign determination level which is a reference for determining a sign of an I signal in a sign extractor. Therefore, the carrier recover apparatus can eliminate unnecessary sign extraction caused by zero-crossing which is generated when the receiver receives a pilot signal weaken by a channel ghost, and improves the frequency lock performance in the receiver. Specially, the carrier recover apparatus can effectively improve the frequency lock performance when comparatively large pattern jitter is existed in a low pass signal caused by a ghost signal produces a long delay time.Type: GrantFiled: December 22, 2004Date of Patent: January 20, 2009Inventors: Tok Kim, Sung Ryong Hong
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Patent number: 7463692Abstract: A device and method for a symbol recovery in a digital television are disclosed. The device includes a symbol clock recovery device includes a remained phase error remover operating a digital baseband real/imaginary number component signals, and removing remained phase error, a timing error detector nonlinearly operating the real/imaginary number component signals having the remained phase error removed, and detecting symbol clock phase error information therefrom, and an oscillating part generating a symbol clock frequency compensated to at least two times from the detected symbol clock phase error information and outputting the compensated frequency.Type: GrantFiled: August 27, 2004Date of Patent: December 9, 2008Assignee: LG Electronics Inc.Inventors: Jung Sig Jun, Tok Kim
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Patent number: 7072425Abstract: A digital TV receiver includes an A/D converter converting an analog signal into a digital signal, a carrier recovery converting the digital pass-band signal into a digital base-band signal, and a symbol clock recovery converting digital real/imaginary base-band component signals into OQAM type of real/imaginary component signals, detecting timing error information by performing high pass-band filtering on the OQAM real/imaginary signals, and squaring and adding the filtered value, and for generating and outputting at least two times the frequency of the symbol clock corrected from the detected timing error information.Type: GrantFiled: February 4, 2004Date of Patent: July 4, 2006Assignee: LG Electronics Inc.Inventors: Jung Sig Jun, Tok Kim
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Publication number: 20050141645Abstract: There are provided a VSB receiver and a carrier recovery apparatus thereof, in which a carrier is recovered using a VSB modulated signal. In the VSB receiver, a digital processing part selects a desired channel frequency through an antenna, converts the channel frequency into an intermediate frequency, and digitalizes the channel frequency by passing a predetermined band of the intermediate frequency. A carrier recovery part extracts pilot signals by using a first LPF having a first bandwidth and a second LPF having a second bandwidth, and recovers a baseband carrier wave signal from a passband signal by using one of the extracted pilot signals. A clock demodulation part removes the pilot signal from the baseband carrier wave signal and extracts a synchronizing signal. A noise removing part removes a linear noise and a residual phase jitter of the baseband signal by using the synchronizing signal. A decoding part decodes the baseband signal whose noise is removed.Type: ApplicationFiled: December 1, 2004Publication date: June 30, 2005Inventors: Joon Kim, Tok Kim
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Publication number: 20050135508Abstract: Provided is a carrier recovery apparatus in a vestigial sideband modulation (VSB) type digital television (DTV) receiver. The carrier recovery apparatus dynamically controls a sign determination level which is a reference for determining a sign of an I signal in a sign extractor. Therefore, the carrier recover apparatus can eliminate unnecessary sign extraction caused by zero-crossing which is generated when the receiver receives a pilot signal weaken by a channel ghost, and improves the frequency lock performance in the receiver. Specially, the carrier recover apparatus. can effectively improve the frequency lock performance when comparatively large pattern jitter is existed in a low pass signal caused by a ghost signal produces a long delay time.Type: ApplicationFiled: December 22, 2004Publication date: June 23, 2005Inventors: Tok Kim, Sung Hong
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Publication number: 20050069048Abstract: A device and method for a symbol recovery in a digital television are disclosed. The device includes a symbol clock recovery device includes a remained phase error remover operating a digital baseband real/imaginary number component signals, and removing remained phase error, a timing error detector nonlinearly operating the real/imaginary number component signals having the remained phase error removed, and detecting symbol clock phase error information therefrom, and an oscillating part generating a symbol clock frequency compensated to at least two times from the detected symbol clock phase error information and outputting the compensated frequency.Type: ApplicationFiled: August 27, 2004Publication date: March 31, 2005Inventors: Jung Sig Jun, Tok Kim
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Publication number: 20040161056Abstract: Disclosed is a symbol clock recovery of a digital TV receiver including an A/D converter converting an analog signal into a digital signal, a carrier recovery converting the digital pass-band signal into a digital base-band signal, and a symbol clock recovery converting digital real/imaginary base-band component signals into OQAM type of real/imaginary component signals, detecting timing error information by performing high pass-band filtering on the OQAM real/imaginary signals, and squaring and adding the filtered value, and for generating and outputting at least two times the frequency of the symbol clock corrected from the detected timing error information.Type: ApplicationFiled: February 4, 2004Publication date: August 19, 2004Applicant: LG Electronics Inc.Inventors: Jung Sig Jun, Tok Kim