Patent application number | Description | Published |
20090028589 | IMAGE FORMING APPARATUS - An image forming apparatus capable of minimizing color mis-registration due to runout of gears is disclosed. The image forming apparatus includes a plurality of photosensitive bodies having transfer points to transfer images onto a transfer object, a driving source to drive at least two photosensitive bodies of the plurality of photosensitive bodies, and a driving gear train to transmit driving power from the driving source to the at least two photosensitive bodies. The driving gear train includes photosensitive body shaft gears respectively connected to the photosensitive bodies driven by the driving source, and connecting gears to transmit the driving power to the photosensitive body shaft gears. When any one of the photosensitive body shaft gears is set to a reference photosensitive body shaft gear, the number of teeth of the connecting gear, which is disposed at a j | 01-29-2009 |
20120134712 | PHOTOSENSITIVE BODY UNIT AND IMAGE FORMING APPARATUS INCLUDING THE SAME - Disclosed herein is a photosensitive body unit having an improved structure capable of disposing a developing unit at a correct position to supply developer to a photosensitive body, and an image forming apparatus including the photosensitive body unit. The image forming apparatus includes a main body, a photosensitive body housing mounted in the main body, a photosensitive body rotatably coupled to the photosensitive body housing, and a developing unit detachably mounted in the main body to supply developer to the photosensitive body. The photosensitive body housing includes a guide portion to determine a mounting position of the developing unit when the developing unit is mounted in the main body. | 05-31-2012 |
20160070199 | POWER TRANSMITTING APPARATUS AND IMAGE FORMING APPARATUS IMPLEMENTING THE SAME - A power transmitting apparatus includes a shaft, first and second passive members mounted on the shaft to be rotatable, and a driving member that is mounted on the shaft and rotates in connection with a driving source, and that according to a rotation direction, slides toward the first and second passive members along the shaft, so as to selectively establish a power connection with the first and second passive members. | 03-10-2016 |
Patent application number | Description | Published |
20120212237 | INTEGRATED SYSTEM INCLUDING SIGNAL ANALYSIS CIRCUIT - An integrated system is provided. The integrated system includes a control system and a signal analysis circuit configured to provide a test signal having a frequency to the control system, receive a feedback signal from the control system, and analyze the test signal and the feedback signal to generate a transfer function of the control system. | 08-23-2012 |
20120224464 | SERVO CONTROLLER AND SERVO SYSTEM INCLUDING THE SAME - A servo controller in a system includes a kick/brake control unit and a compensation unit. The kick/brake control unit determines an internal parameter based on an external control signal and an operation state of a plant. The compensation unit generates a driving control signal based on an error signal supplied from the plant and the internal parameter, and supplies the driving control signal to the plant. The plant performs a steady-state operation during a first operation mode and a target moving operation during a second operation mode based on the driving control signal. | 09-06-2012 |
20140089697 | SYSTEM-ON-CHIP WITH CAPABILITY FOR CONTROLLING POWER SUPPLY ACCORDING TO DATA TRANSACTION AND METHOD OF OPERATING THE SAME - A system-on-chip (SoC) which includes a plurality of intellectual properties (IP cores) which communicate data with a memory device operates by monitoring whether a data transaction occurs between at least one of the IP cores and the memory device, determining an operation state of the IP core according to the result of the monitoring, and supplying the IP core with power corresponding to the operation state of the IP core. | 03-27-2014 |
20140136861 | DATA REQUEST PATTERN GENERATING DEVICE AND ELECTRONIC DEVICE HAVING THE SAME - A data request pattern generating device may include a sequence detector configured to generate data request sequence information based on a plurality of data request signals. The data request signals may be output from a plurality of function blocks. The device may include a time detector configured to generate data request time information based on the data request signals. The device may include a pattern generator configured to generate a data request pattern based on the data request sequence information and the data request time information. | 05-15-2014 |
Patent application number | Description | Published |
20080297819 | SERVO CONTROL APPARATUS IN OPTICAL DISC DEVICE AND METHOD OF CONTROLLING SERVO - A servo control apparatus in an optical disc device and a method of controlling a servo are provided. When an image is printed on a surface of an optical disc, an irregular reflective surface results. A servo control apparatus that is adapted for such irregular surfaces includes: an optical pick-up unit configured to output an error detection signal, the error detection signal associated with a positional error of an objective lens, the positional error associated with light that is reflected from an optical disc; a signal compensation unit coupled to the optical pick-up unit, the signal compensation unit configured to amplify the error detection signal to produce an amplified error detection signal; a filter coupled to the signal compensation signal, the filter configured to remove a noise component from the amplified error detection signal to produce a filtered error detection signal; and a control unit coupled to the filter, the control unit configured to output a control signal to a positional actuator associated with the objective lens based on the filtered error detection signal. | 12-04-2008 |
20090067298 | REDUCED NOISE SERVO CONTROL - A servo control system and method is provided, comprising: a controller outputting a parameter control signal; a device having a parameter controlled based on the parameter control signal; a sensing circuit sensing the parameter of the device and generating a parameter error signal; a sinusoidal signal generator generating a sinusoidal signal; and a adder combining the parameter error signal and the sinusoidal signal, wherein the controller includes a servo equalizer that equalizes the added parameter error signal and the sinusoidal signal to output an equalized parameter control signal to adjust the parameter. | 03-12-2009 |
20140212186 | IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF - An image forming apparatus and method which reduces time taken for color registration and reflects misregistration of colors in real time to correct color misregistration of prints are provided. Image forming apparatus may include photoconductor elements corresponding to colors; first sensing unit arranged between first and second photoconductor elements among photoconductor elements, and sensing toner images transferred to intermediate transfer body; final sensing unit arranged after final photoconductor element among photoconductor elements, and sensing transferred toner images; and controller calculating fixed errors of remaining colors except for first color among colors, with respect to first color corresponding to first photoconductor element, based on output values of final sensing unit before printing, calculating variable error based on output value of first sensing unit during printing, and adjusting scanning time of at least one color of remaining colors in real time in consideration of fixed errors and variable error. | 07-31-2014 |
20140301758 | IMAGE FORMING APPARATUS AND CONTROL METHOD FOR THE SAME - An image forming apparatus, which achieves reduced color registration time and real-time calibration of color position shift, and a control method for the same, is provided. The image forming apparatus includes plural photoconductors corresponding to plural colors, an exposure unit to form an electrostatic latent image by emitting light to the photoconductors, a developing unit to form a toner image by feeding toner to the photoconductors, an intermediate transfer body to which the toner image, formed on each photoconductor, is transferred, a sensing unit to sense the toner image formed on the intermediate transfer body, and a controller which forms images in respective image forming sections of the intermediate transfer body and test-pattern sets for color registration in respective blanks between the neighboring image forming sections, the controller implementing color registration calibration using color registration calibration values acquired from four test pattern sets among the formed test pattern sets. | 10-09-2014 |
20140348531 | IMAGE FORMING APPARATUS - Disclosed herein is an image forming apparatus that has a developing unit, an intermediate transfer body, and a transfer roller and may prevent contamination of the transfer roller and a printing medium by the toner remaining in a test pattern forming area of the intermediate transfer body. The image forming apparatus includes a developing unit to allow an image to be formed by a developing agent, an intermediate transfer body provided with an image forming area and a test pattern forming area, the image being transferred from the developing unit to the image forming area and the test pattern forming area, and a transfer roller allowing the image to be transferred from the image forming area to a printing medium, wherein a maximum transfer length of the transfer roller is less than a maximum image forming length of the developing unit. | 11-27-2014 |
20150023702 | IMAGE FORMING APPARATUS AND METHOD FOR COLOR REGISTRATION CORRECTION - An image forming apparatus includes a registration unit which performs color registration correction by using a registration sensor, an image forming unit which forms a preset first mark whose range is greater than a range recognizable by the registration sensor on an image forming medium, and a storage which stores a specific area of an image forming medium recognizable by the registration sensor by using the formed preset first mark. The image forming apparatus further includes a controller which controls the image forming apparatus to form a preset second mark to perform color registration correction within a range recognizable by the registration sensor by using information regarding the specific area which was previously stored in the storage, and the controller controls the registration unit to perform color registration correction by using the formed preset second mark. | 01-22-2015 |
20150110536 | IMAGE FORMING APPARATUS AND METHOD FOR REDUCING IMAGE BANDING OF THE IMAGE FORMING APPARATUS - An image forming apparatus and a method of reducing image banding of the image forming apparatus is provided. The image forming apparatus includes: a photoconductor unit on which an electrostatic latent image is formed; and a conveying unit configured to convey printing medium at a first conveying velocity toward the photoconductor unit, and configured to convey the printing medium at a second conveying velocity that is lower than the first conveying velocity when the printing medium approaches the photoconductor unit. | 04-23-2015 |
20150125182 | POWER TRANSMITTING DEVICE AND IMAGE FORMING APPARATUS HAVING THE SAME - A power transmitting device having a structure to allow a photoconductor to stably form a visible image on a printing medium. The power transmitting device interconnects a rotator and a drive motor, the drive motor generating drive power to drive the rotator. The power transmitting device includes at least one gear to be rotated upon receiving power from the drive motor, a rotating shaft having one end penetrating the gear and a coupler to interconnect the other end of the rotating shaft and the rotator. An outer diameter of the coupler, an outer diameter of the rotator and an outer diameter of the gear satisfy the following relation: 0.7D105-07-2015 | |
20150125188 | IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING THE SAME - An image forming apparatus, a color registration test pattern of the image forming apparatus, and a method of forming the color registration test pattern are provided. A time required for color registration may be reduced by minimizing a region in which a color registration test pattern is formed on an intermediate transfer body. A control method of the image forming apparatus, which includes photosensitive media arranged side by side to correspond to colors in a rotation direction of the intermediate transfer body, includes forming first patterns of the colors arranged in a single row in a sub-scanning direction in a first region of the intermediate transfer body over a single-rotation period of the photosensitive media, and forming second patterns of the colors arranged in a single row in the sub-scanning direction in a second region of the intermediate transfer body over another single-rotation period of the photosensitive media. | 05-07-2015 |
Patent application number | Description | Published |
20120263059 | MOBILE TERMINAL, WIRELESS NETWORK SYSTEM HAVING THE MOBILE TERMINAL, AND SCANNING METHOD OF THE WIRELESS NETWORK SYSTEM - A mobile terminal includes an acceleration sensor, and a wireless network system includes the mobile terminal including a sensor for generating a signal corresponding to a movement of the mobile terminal; a status management module for detecting a moving status of the mobile terminal by using the signal from the sensor, and for sensing a strength of a signal provided from a base station to which the mobile terminal is connected; a scanning module for performing a scanning operation with respect to adjacent base stations according to a result of the detecting and a result of the sensing; and a memory for storing information collected via the scanning operation. | 10-18-2012 |
20150046968 | FUNCTION UPGRADE DEVICE, DISPLAY APPARATUS AND METHOD FOR CONTROLLING DISPLAY APPARATUS THEREOF - A function upgrade device, a display apparatus, and a method for controlling a display apparatus are provided. The function upgrade device may include a function unit configured to perform a function in conjunction with the display apparatus, a storage configured to store user information and an application related to the function unit, an interface configured to connect the function upgrade device to the display apparatus and enable the function upgrade device to communicate with the display apparatus, and a controller configured to, when the display apparatus is connected to the function upgrade device through the interface, control the function unit to operate in conjunction with the display apparatus based on the user information and the application stored in the storage. | 02-12-2015 |
20150091795 | DISPLAY APPARATUS AND METHOD OF CONTROLLING THE SAME - There is provided a display device which includes a display panel, a backlight that has a plurality of light sources and applies light to the display panel, a human body detector configured to detect a human body located around the display panel, a human body information acquisition unit configured to acquire information on the human body, and a control that controls an operation of a user recognition unit when the human body is detected in a standby mode, performs user recognition based on the acquired human body information, controls an operation of the display panel such that notification information of the user is displayed in a portion of the display panel, and turns some light sources out of the plurality of light sources on. According to the invention, for the user who views the display device, the local dimming is performed on the backlight which provides content information desired by the user utilizing only a portion of the display device. Therefore, it is possible to increase dynamic contrast and reduce power consumption more than in global dimming. Accordingly, the user may enter a personalized mode of a TV, and content information is provided to the user in the standby mode. | 04-02-2015 |
20150097918 | DISPLAY APPARATUS AND METHOD FOR PREVENTING DIVULGENCE OF IMAGE INFORMATION THEREOF - Disclosed are a display apparatus and a method for preventing divulgence of image data thereof which may prevent image information including image data photographed by a camera of the display apparatus from being divulged by hacking, etc. The display apparatus includes a camera which captures an image; a display which displays the image thereon based on image data captured by the camera; a communicator which communicates with an outside of the apparatus through an Internet; and a controller which transmits image information including the image data captured by the camera, in the form of a transmission packet including the image data and a detection mark or indicator capable of detecting or indicating that the image data is to be transmitted to the outside, when the image information is to be transmitted to the outside through the communicator. | 04-09-2015 |
20150245285 | METHOD FOR SETTING COMMUNICATION CHANNEL OF DEVICE, METHOD FOR SETTING COMMUNICATION CHANNEL BETWEEN A PLURALITY OF DEVICES, AND DEVICE - A method for setting a communication channel of a first device is provided. The method for setting the communication channel of the first device includes: communicating with an Access Point (AP) via a predetermined channel; and in response to a problem arising in communicating with the AP, alternating between an AP search mode to discover the AP and a standby mode to set the communication channel for communicating with a second device among a plurality of channels. | 08-27-2015 |
Patent application number | Description | Published |
20120159428 | METHOD OF DETERMINING MULTIMEDIA ARCHITECTURAL PATTERN, AND APPARATUS AND METHOD FOR TRANSFORMING SINGLE-CORE BASED ARCHITECTURE TO MULTI-CORE BASED ARCHITECTURE - A method and apparatus for authoring an architecture for transforming a single-core based embedded software application to a multi-core based embedded software application, and a method of determining an architectural pattern in a multimedia system. It is possible to perform an architecture authoring operation by using an architectural decision supporter, without prior knowledge and accumulated knowledge regarding a software architecture. Additionally, it is possible to prevent an error from occurring during authoring of an architecture, by using a concurrency-related software architectural pattern that is already evaluated. Thus, it is possible to improve overall quality of software, and to reduce a development time. | 06-21-2012 |
20140359553 | APPARATUS AND METHOD FOR RECOMMENDING SOFTWARE PROCESS IMPROVEMENT - An apparatus and method for recommending software process improvement are disclosed. The method includes generating improvement packages from correlated findings by analyzing correlations between findings identified from different processes, refining the improvement packages by performing an additional correlation analysis on the improvement packages, and providing an action plan for process improvement by building recommendations from the refined improvement packages. | 12-04-2014 |
20150371842 | SULFUR LAMP - A sulfur lamp having low microwave leakage includes a structure made of a plurality of electrically conductive strips. The lamp cage is formed from respective halves removably joined together and configured to be resonant at the microwave frequency generated by the magnetron, in a mode that induces wall currents parallel to the joints formed by joining the halves together. | 12-24-2015 |
20150380198 | MAGNETRON - A 4G magnetron is disclosed. The magnetron may include an anode, having a cylindrical member and anode vanes disposed within the cylindrical member which define resonant cavities therebetween, and a dispenser cathode, suitable for heating and located coaxially within said anode. The magnetron may operate in a temperature range of about 850-1050 C. The magnetron may include conductive cooling. The magnetron may comprise inventive anode and cathode structures. A method for preparing a plurality of magnetron tubes substantially simultaneously is further provided. | 12-31-2015 |
Patent application number | Description | Published |
20100178072 | IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING FUSER THEREOF - Disclosed is an image forming apparatus capable of controlling a fuser thereof to operate effectively even with a possible fluctuation in the AC voltage input. The image forming apparatus may include an input for receiving an AC voltage, a detector that outputs a DC voltage corresponding to a level of the AC voltage input, a fuser operable to produce heat according to the AC voltage input, a storage in which fusing temperature control information and a controller that controls the fuser using the fusing temperature control information corresponding to the DC voltage. | 07-15-2010 |
20110042890 | IMAGE FORMING APPARATUS - Disclosed is an image forming apparatus incorporating a discharging unit that discharges a printing medium outside the housing of the image forming apparatus, and which stacks the discharged printing medium. The discharging unit includes a discharging part arranged on the transportation path of the printing medium in the housing, a stacking lever rotatably supported on the housing and a driving unit that drives the stacking lever to rotate. The discharging part discharges a printing medium outside the housing, and stacks the discharged printing medium on a stacking unit provided outside the housing. The stacking lever guides the stacking of the printing medium in the stacking unit. A control unit may be provided to control the driving unit so as to vary the revolution position of the stacking lever based on the discharged position of the printing medium discharged by the discharging part. | 02-24-2011 |
20150063853 | IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF - An image forming apparatus and a control method thereof in which occurrence or removal of a paper rolling state in a fusing device is judged based on temperature of the fusing device. The apparatus includes a temperature sensor to sense temperature of the fusing device, a memory to store information about occurrence or removal of the paper rolling state, and a controller to judge occurrence or removal of the paper rolling state. The controller detects an initial temperature of the fusing device when the apparatus is turned off and then on in a state in which the information about occurrence of the paper rolling state is stored in the memory, heats the fusing device by applying power thereto for a predetermined time based on the initial temperature, and judges occurrence or removal of the paper rolling state based on temperature of the fusing device detected after power application. | 03-05-2015 |
Patent application number | Description | Published |
20150256974 | PROXIMITY ESTIMATION METHOD AND APPARATUS USING ROUND TRIP TIME IN A WIRELESS COMMUNICATION SYSTEM AND METHOD AND APPARATUS FOR PROVIDING LOCATION BASED SERVICE USING SAME - A proximity estimation method and apparatus are provided for measuring a distance between devices in a wireless communication system. The method includes transmitting, by a first device, a first signal to a second device; receiving, by the first device, a second signal from the second device, in response to the first signal; and measuring, by the first device, a distance between the first device and the second device, based on a phase difference between the first signal and the second signal. | 09-10-2015 |
20150334488 | METHOD AND APPARATUS FOR COMMUNICATING AUDIO DATA - A method and an apparatus are provided for transmitting audio data. The method includes setting a connection with a plurality of slave devices by using a short range wireless communication protocol, generating a data packet comprising the audio data, and repetitively transmitting the data packet to the plurality of slave devices through a multicast/broadcast channel a number of times. | 11-19-2015 |
20160065270 | METHOD AND APPARATUS FOR ACTIVATING SCAN FUNCTION - A method and electronic device for receiving information is provided. The method includes transmitting, by the electronic device, a scan time and an identification of the information to cause the identified information to be broadcast at the scan time; and scanning, by the electronic device, during the scan time to receive the information. The electronic device includes a transmitter configured to transmit a scan time and an identification of the information to cause the identified information to be broadcast at the scan time; and a scanner configured to scan during the scan time to receive the information. | 03-03-2016 |
20160080096 | TRANSCEIVER AND OPERATION METHOD THEREOF - A transceiver and a method operating the transceiver are provided. The transceiver includes a first communication module configured to receive a first signal based on a first communication scheme; a second communication module configured to receive a second signal based on a second communication scheme; a reception module having a low-power circuit configured to detect a signal in a frequency band which can be used by the first communication module and the second communication module; and a controller configured to establish channels for the first communication module or the second communication module based on a strength of the signal detected by the reception module. | 03-17-2016 |