Patents by Inventor Bang-Won Lee

Bang-Won 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).

  • Publication number: 20070300091
    Abstract: Provided are a computer system having a security function, a computer security method, and an optical pointing device. The optical pointing device includes: an optical part irradiating light to a worktable surface and transmitting the light reflected; receiving the reflected light to continuously detect an image and detect a motion of the optical pointing device using variation of the image, and calculating a motion value to output motion data; a first transparent plate receiving the reflected light to discharge the light to the exterior; a second transparent plate transmitting the light discharged and reflected from the subject into the optical pointing device; a subject motion sensor receiving the light reflected from the subject to detect a motion of the subject, and outputting subject motion data; and a motion data storage part storing the motion data and the subject motion data.
    Type: Application
    Filed: May 3, 2007
    Publication date: December 27, 2007
    Applicant: ATLAB INC.
    Inventor: Bang-Won LEE
  • Publication number: 20070162633
    Abstract: A computer peripheral device containing contents and a method of outputting contents using the device are provided.
    Type: Application
    Filed: July 24, 2006
    Publication date: July 12, 2007
    Inventors: Chul-Yong Joung, Bang-Won LEE, Young-Ho Shin
  • Publication number: 20070132734
    Abstract: Provided is an optical navigation device and a method of operating the same.
    Type: Application
    Filed: September 13, 2006
    Publication date: June 14, 2007
    Inventors: Jong-Taek Kwak, Bang-Won Lee, Young-Ho Shin, Woo-Seok Lee
  • Publication number: 20070126699
    Abstract: An optical navigation device and a method of operating the same are provided. The optical navigation device includes: an image sensor for obtaining a sampling image; a filter selector for selecting an image filter performing a filtering operation according to an image pattern of the sampling image, and transmitting the sampling image to the selected image filter; an image filter having a plurality of image filters, and filtering the sampling image through the image filter selected from the plurality of image filters to generate an filtering image; and a movement value calculator for calculating a movement value in response to the filtering image. Therefore, it is possible to change the image filter used according to an image pattern or a movement direction of a subject to thereby calculate an accurate movement value corresponding to the image pattern and the movement direction.
    Type: Application
    Filed: September 6, 2006
    Publication date: June 7, 2007
    Inventors: Jong-Taek Kwak, Bang-Won Lee
  • Publication number: 20070115260
    Abstract: Provided are an optical pointing device and a method of computing a movement value thereof.
    Type: Application
    Filed: September 8, 2006
    Publication date: May 24, 2007
    Inventor: Bang-Won Lee
  • Publication number: 20070002022
    Abstract: An optical pointing device includes: an image obtaining part for continuously obtaining an image on a work surface as a sample image; a movement value calculator for comparing the sample image with the previously obtained image to calculate and output a movement value; a button selection signal generator for outputting a button selection signal corresponding to a specific reference pattern, when the sample image is the same as the specific reference pattern of a plurality of reference patterns; and a controller for providing the button selection signal and the movement value to a computing device when the button selection signal is transmitted from the button selection signal generator, and providing the movement value only to the computing device when the button selection signal is not transmitted from the button selection signal generator.
    Type: Application
    Filed: June 15, 2006
    Publication date: January 4, 2007
    Inventors: Chul-Yong Joung, Bang-Won Lee, Young-Ho Shin
  • Patent number: 7064311
    Abstract: Disclosed is an optical image detector and method for controlling illumination of the same. The optical image detector comprises a light source for controlling the illumination in response to an illumination control signal and irradiating light having the controlled illumination onto a subject, an image sensor for detecting a quantity of light reflected from the subject and generating and outputting image signals corresponding to the detected quantity of light, and an image processor for calculating a shutter-on time using the image signals, comparing the calculated shutter-on time with at least one of maximum and minimum shutter-on times, and generating and outputting the illumination control signal corresponding to values of the compared results.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: June 20, 2006
    Assignee: Atlab, Inc.
    Inventors: Duck-Young Jung, Bang-Won Lee
  • Publication number: 20060105716
    Abstract: Provided are a human interface device and a wireless communication method thereof. The wireless communication method of the human interface includes the steps of: setting up an occupancy channel of the host digital terminal and the wireless input unit by communicating data for setting up the occupancy channel through the emergency channel; transmitting, at the wireless input unit, operation data through the occupancy channel, and receiving, at the host digital terminal, the operation data; and when the operation data is not generated until a predetermined time lapses, enabling the wireless input unit and the host digital terminal to operate in an operation standby state, and confirming whether there is interference on the occupancy channel. Accordingly, efficiency of a frequency band is increased, and cost and size of the product can be reduced.
    Type: Application
    Filed: November 14, 2005
    Publication date: May 18, 2006
    Inventors: Jin-Woo Jung, Bang-Won Lee, Young-Ho Shin, Chul-Yong Joung, You-Young Cha
  • Publication number: 20060077176
    Abstract: Provided is a human input apparatus and method for calculating a movement value thereof. The human input apparatus includes a plurality of touch sensors for varying and outputting output signals by direct contact, a sensing unit for receiving the output signals in parallel from the plurality of touch sensors and generating input data in response to the output signals, and a movement value calculating means for extracting valid input data from the input data and operating on and outputting a movement value using operated-on data comparing the valid input data with reference data and the reference data. Accordingly, a mechanical device mounted on the human input apparatus in order to express movement can be replaced by an electronic device employing the touch sensors, so that it is possible not only to prevent malfunction caused by noise or abrasion of a mechanical switch, but also to reduce power consumption and production cost. Further, it is advantageous for downsizing.
    Type: Application
    Filed: October 6, 2005
    Publication date: April 13, 2006
    Inventors: Chul-Yong Joung, Jae-Surk Hong, Bang-Won Lee, Young-Ho Shin
  • Publication number: 20060071907
    Abstract: An optical pointing device is provided. The optical pointing device includes: a base plate; a circuit board disposed on one side of the base plate, and having a light source irradiating light and a sensor receiving a light reflected from a working surface; an optical structure disposed between the base plate and the circuit board and having a light path guiding the light irradiated from the light source to the sensor; and a light blocking mean disposed on the light path to block the light path when the base plate is separated from a predetermined position.
    Type: Application
    Filed: September 23, 2005
    Publication date: April 6, 2006
    Inventors: Chul-Yong Joung, Jong-Taek Kwak, Young-Ho Shin, Bang-Won Lee
  • Publication number: 20060055674
    Abstract: An optical pointing device and a control method thereof are provided. The optical pointing device includes: an illumination unit for illuminating light on a working surface, and generating light in a predetermined code in response to a code signal; a control unit for detecting an image on the working surface to calculate a movement value, outputting movement information in response to an input signal inputted from the outside and the calculated movement value, intermittently outputting a code generation signal, and turning off the illumination unit when the optical pointing device is separated from the working surface in response to a determination signal; and a determination unit for outputting the code signal in response to the code generation signal, detecting light in the predetermined code to thus determine whether or not the optical pointing device is separated from the working surface, and outputting the determination signal depending on the determination result.
    Type: Application
    Filed: September 12, 2005
    Publication date: March 16, 2006
    Inventors: Chul-Yong Joung, Duck-Young Jung, Young-Ho Shin, Bang-Won Lee
  • Publication number: 20060019670
    Abstract: A wireless communication system and a channel changing method thereof are provided. The wireless communication system which includes a plurality of channels, uses one of the plurality of channels as a specific channel, and uses another channel of the plurality of channels as a communication channel, includes: a base terminal for obtaining the one of the plurality of channels as an alternative channel, generating a channel change command including information on the alternative channel, and transmitting the command on a specific channel, when there is a data error received on the communication channel; and a wireless input device for resetting the alternative channel as a new communication channel and performing wireless communication on the communication channel which was reset, after obtaining the information on the alternative channel by receiving the channel change command from the specific channel.
    Type: Application
    Filed: July 13, 2005
    Publication date: January 26, 2006
    Inventors: Chul-Yong Joung, Yu-Young Cha, Young-Ho Shin, Bang-Won Lee
  • Publication number: 20050200599
    Abstract: An optical pointing device is disclosed. The optical pointing device includes: a case having an opening portion formed on a bottom thereof; a light source installed in the case; an illuminating member for reflecting light emitted from the light source to the exterior through one side of the opening portion of the case; a lens member installed in the case to collect the light which is reflected by the illuminating member and then is reflected from the exterior of the case to enter through the other side of the opening portion; an image sensor installed above the lens member to receive the collected light; and a masking member installed closely to the lens member and having a light collecting hole which exposes a significant surface of the lens member.
    Type: Application
    Filed: March 8, 2005
    Publication date: September 15, 2005
    Inventors: Bang-Won Lee, Young-Ho Shin
  • Publication number: 20050200600
    Abstract: An image sensor, an optical pointing device and a motion calculating method of the optical pointing device are disclosed. The optical pointing device includes an image sensor for obtaining and providing a surface image corresponding to a motion searching range; and an image processor for determining a direction and a length of an X axis and a Y axis of the motion searching range and a reference area to continuously obtain the surface image corresponding to the direction and length of the X axis and Y axis, obtaining a reference frame and a current frame using the continuously obtained surface image, setting a certain area of the reference frame corresponding to the direction and length of the X axis and Y axis of the reference area as the reference area, and calculating a correlation between the reference area and the sample frame, to thereby calculate motion. The image sensor can obtain the larger surface image in the X axis direction.
    Type: Application
    Filed: March 11, 2005
    Publication date: September 15, 2005
    Inventor: Bang-Won Lee
  • Publication number: 20050161582
    Abstract: Disclosed is a method for controlling a light source and optical input device using the same. The light source controlling method includes setting a shutter ON time of an image sensor using a statistical value of an image obtained through the image sensor, and setting a light source ON time in accordance with the shutter ON time and turning on/off the light source and the shutter in response to the set light source ON time and the set shutter ON time. Thus, undesired consumption of electric power of the light source is prevented to increase energy efficiency by actively setting an ON/OFF period of the light source consuming the maximum electric current in the optical input device according to a shutter ON/OFF period. Further, availability of the light source and its electric current is enhanced by controlling the light source for the shutter OFF period and by allowing the light source to be used as a source for the data transmission.
    Type: Application
    Filed: January 25, 2005
    Publication date: July 28, 2005
    Inventors: Bang-Won Lee, Young-Ho Shin
  • Publication number: 20040129861
    Abstract: Disclosed is an optical image detector and method for controlling illumination of the same. The optical image detector comprises a light source for controlling the illumination in response to an illumination control signal and irradiating light having the controlled illumination onto a subject, an image sensor for detecting a quantity of light reflected from the subject and generating and outputting image signals corresponding to the detected quantity of light, and an image processor for calculating a shutter-on time using the image signals, comparing the calculated shutter-on time with at least one of maximum and minimum shutter-on times, and generating and outputting the illumination control signal corresponding to values of the compared results.
    Type: Application
    Filed: December 19, 2003
    Publication date: July 8, 2004
    Inventors: Duck-Young Jung, Bang-Won Lee
  • Publication number: 20040119695
    Abstract: Disclosed is an optical pointing system, a signal transmission method of the same, and a signal processing method of a computer used in the optical pointing system. The optical pointing system comprises an image sensor for outputting an analog signal corresponding to a surface image, a signal conversion section for converting the analog signal of the image sensor into a digital image signal, a movement value calculation circuit for calculating a movement value using the digital image signal of the signal conversion section and outputting the calculated movement value, and a computer interface for receiving the digital image signal and the movement value and transmitting the digital image signal and the movement value to a computer. Thereby, an image signal of a worktable surface on which the optical pointing system is placed can be processed at not only the optical pointing system but also the computer, so that it is possible to calculate the accurate movement value of the optical pointing system.
    Type: Application
    Filed: December 10, 2003
    Publication date: June 24, 2004
    Inventor: Bang Won Lee
  • Patent number: 6753851
    Abstract: An optical mouse of a dynamic range has an analog/digital (A/D) converter having an input range adjusted based on an input range control signal, the A/D converter receiving an input signal over the adjusted input range and converting the received signal into digital data, and an image data processor for determining on the basis of image data from the A/D converter whether a data concentrated distribution has occurred, detecting a level of the input range with the data concentrated distribution upon determining that the data concentrated distribution has occurred, outputting the input range control signal to the A/D converter according to the detected level and processing the image data from the A/D converter to detect motion data therefrom.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: June 22, 2004
    Assignees: Samsung Electro-Mechanics Co., Ltd., ATLab Inc.
    Inventors: Won-Tae Choi, Bang-Won Lee
  • Publication number: 20030193529
    Abstract: Disclosed are a navigation system and a navigation method, wherein the navigation method comprises the steps of sequentially providing image frames containing navigation information and generating electric signals corresponding to a position of an optical sensor, storing a first image frame into a reference frame memory as a reference frame, storing an input image frame subsequent to the first image frame into an input frame memory as a current input frame, setting a mask window having a predetermined size on the reference frame, obtaining correlation values over all the pixels on the current input frame by a full search comparison method, by moving the mask window on the current input frame pixel by pixel, calculating X-axis and Y-axis displacements of a pixel having the greatest correlation value of all the pixels, and updating the reference frame using the current input frame stored in the input frame memory.
    Type: Application
    Filed: April 11, 2003
    Publication date: October 16, 2003
    Inventors: Bang Won Lee, Jong Taek Kwak
  • Publication number: 20030048255
    Abstract: An optical mouse having a dynamic range, comprising an analog/digital (A/D) converter having an input range adjusted based on an input range control signal, the A/D converter receiving an input signal over the adjusted input range and converting the received signal into digital data, and an image data processor for determining on the basis of image data from the A/D converter whether a data concentrated distribution has occurred, detecting a level of the input range with the data concentrated distribution upon determining that the data concentrated distribution has occurred, outputting the input range control signal to the A/D converter according to the detected level and processing the image data from the A/D converter to detect motion data therefrom.
    Type: Application
    Filed: November 27, 2001
    Publication date: March 13, 2003
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Won-Tae Choi, Bang-Won Lee