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).

  • Patent number: 9462868
    Abstract: 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: Grant
    Filed: November 13, 2013
    Date of Patent: October 11, 2016
    Inventor: Yong Tok Kim
  • Publication number: 20140068959
    Abstract: 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: Application
    Filed: November 13, 2013
    Publication date: March 13, 2014
    Inventor: YONG TOK KIM
  • Publication number: 20120317829
    Abstract: 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: Application
    Filed: January 12, 2012
    Publication date: December 20, 2012
    Inventor: YONG TOK KIM
  • Patent number: 8031813
    Abstract: 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: Grant
    Filed: June 4, 2009
    Date of Patent: October 4, 2011
    Assignee: LG Electronics Inc.
    Inventors: Joon Tae Kim, Tok Kim
  • Publication number: 20090245390
    Abstract: 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: Application
    Filed: June 4, 2009
    Publication date: October 1, 2009
    Inventors: Joon Tae KIM, Tok Kim
  • Patent number: 7558340
    Abstract: 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: Grant
    Filed: December 1, 2004
    Date of Patent: July 7, 2009
    Assignee: LG Electronics Inc.
    Inventors: Joon Tae Kim, Tok Kim
  • Patent number: 7480350
    Abstract: 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: Grant
    Filed: December 22, 2004
    Date of Patent: January 20, 2009
    Inventors: Tok Kim, Sung Ryong Hong
  • Patent number: 7463692
    Abstract: 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: Grant
    Filed: August 27, 2004
    Date of Patent: December 9, 2008
    Assignee: LG Electronics Inc.
    Inventors: Jung Sig Jun, Tok Kim
  • Patent number: 7072425
    Abstract: 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: Grant
    Filed: February 4, 2004
    Date of Patent: July 4, 2006
    Assignee: LG Electronics Inc.
    Inventors: Jung Sig Jun, Tok Kim
  • Publication number: 20050141645
    Abstract: 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: Application
    Filed: December 1, 2004
    Publication date: June 30, 2005
    Inventors: Joon Kim, Tok Kim
  • Publication number: 20050135508
    Abstract: 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: Application
    Filed: December 22, 2004
    Publication date: June 23, 2005
    Inventors: Tok Kim, Sung Hong
  • Publication number: 20050069048
    Abstract: 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: Application
    Filed: August 27, 2004
    Publication date: March 31, 2005
    Inventors: Jung Sig Jun, Tok Kim
  • Publication number: 20040161056
    Abstract: 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: Application
    Filed: February 4, 2004
    Publication date: August 19, 2004
    Applicant: LG Electronics Inc.
    Inventors: Jung Sig Jun, Tok Kim