Samsung Electronics Co., Ltd.

S-printing Solution Co., Ltd.

Hyundai Motor Company

Hp Printing Korea Co., Ltd.

Sung-dae Kim

Young-min Yoon

Cheol-young Han

Ki-won Yoo

Jae-moon Kim

Sang-kwon Na

Jung-Jae Lee

Jong-tae Kim

Dong-Hoon Han

Hyun-Ki Cho

Tae-il Jung

Hak-kyum Kim

Pil-seung Oh

Hyun-Soo Kim

Chul-Woo Lee

Tae-hee Kim

Han-sung Lee

In-yong Song

Kyu-cheol Shin

Joong-gwang Shin

Hae-seog Jo

Young-jung Yun

Soo-yong Kim

Heon-Hee Lim

Kwoang-joe Seorl

Hyo-Sik Kim

Chang-su Han

Jin-kwon Chun

Hyun-seong Shin

Ji-young Byun

Dae-lim Shin

Young-joon Lee

Myoung-chan Kim

Seung-beom Yang

Bin-na Go

Gwoang-Joe Seorl

Ki-ho Park

Ki-Ho Yum

A video encoding apparatus comprises an encoder encoding input video; a decoder decoding video data, and a filter to compensate for a pixel value of the encoded video data. An adaptive loop filter (ALF) parameter predictor generates an ALF filter parameter using the decoded video data. The ALF filter parameter is applied to an ALF filter to compensate a current pixel by using a pixel adjacent to the current pixel and a filter coefficient with respect to the neighboring pixel; a sample adaptive offset (SAO) filter unit applied to the decoded video data compensates for a current pixel by using at least one of an edge offset and a band offset; an ALF filter unit applies the ALF filter parameter, the ALF filter to video data to which the SAO filter has been applied; and an entropy encoder performs entropy encoding on the ALF filter parameter.

Video encoding method using in-loop filter parameter prediction and apparatus therefor, and video decoding method and apparatus therefor

A video encoder and decoder are described. The encoder operates on luma data and chroma data. The luma data is split into two channels. The channel split can be based on frequency regions or based on even and odd lines. When the channel split is based on frequency regions, the encoder produces a channel with low frequency data and a channel with high frequency data. A third channel holds chroma data. The decoder recovers the split luma data and the third channel of chroma data. The decoder may then generate one or more pixels to be stored in a line buffer.

Image decoding method and device therefor, and image encoding method and device therefor

A sheet supplying apparatus includes an alignment member pivotable to an alignment location for blocking and aligning fore-ends of media contained on a loading table, and a transport-allowing location for allowing a medium picked up by a pickup member to be transported, a cam gear including a gear portion partially including a tooth-omitted portion, and a cam portion for switching the alignment member between the alignment location and the transport-allowing location at first and second rotating locations, a swing arm pivotable about a same axis as a rotation axis of a main gear, and first and second swing gears supported by the swing arm to interlock with the main gear, selectively interlocking with the gear portion according to a rotating direction of the main gear, and rotating the cam gear to the first and second rotating locations.

Sheet supplying apparatus, sheet processing apparatus employing the same, and image forming apparatus

A scanner apparatus includes a document feeding path in which a reading device configured to read an image from a document is provided, a first registration roller configured to feed the document along the document feeding path, and located at an upstream side of the reading device based on a feeding direction of the document, a second registration roller aligned with the first registration roller in a width direction of the document, and located spaced apart from the first registration roller in the width direction, a registration motor configured to drive the first registration roller, and a main motor configured to drive the second registration roller.

Scanner apparatus, image forming apparatus employing the same, and skew correction method

Provided are an light scanning device capable of adjusting the position of optics and an image forming apparatus including the light scanning device. The light scanning device includes first and second light sources configured to emit first and second light beams, respectively; optics including first and second lenses for transmitting the first and second light beams therethrough and a lens holder configured to support the second lens; and a housing configured to support the first and second light sources and the optics, wherein the first and second light sources and the first lens are supported to be fixed to the housing, and the second lens is supported to be able to move with respect to the first lens.

Light scanning device with lens holder and image forming apparatus

A structure for mounting a spare tire for antitheft may include a carrier support bracket on which a spare tire is mounted, a bracket mounted at a bottom surface of a vehicle and supporting the spare tire, and a carrier winding or unwinding a wire mounted at the carrier support bracket in order for the spare tire to be moved upwardly and downwardly, the carrier further including a carrier housing including a top surface formed with a through hole, and a bottom surface formed with a projecting hole, a shaft bolt rotatably mounted at the carrier housing and adapted to wind or unwind the wire by rotation thereof, and a socket to transmit a torque applied from an outside of the vehicle to the shaft bolt or to block the torque not to be transmitted to the shaft bolt.

Structure for mounting spare tire for antitheft

An electrophotographic image forming apparatus includes a driving device including a first gear and a second gear, a power transmitter configured to transfer a rotational force applied in one direction from the motor to the first and second gears; a cam configured to set the power transmitter to one of a release mode in which the motor is disconnected from the first and second gears, a first connection mode in which one of the first and second gears is connected to the motor, and a second connection mode in which the other of the first and second gears is connected to the motor; and a clutch configured to selectively transfer the rotational force applied in the one direction from the motor to the cam.

Driving device and image forming apparatus including the same

A development cartridge attachable to and detachable from a main body of an image forming apparatus includes a photosensitive unit including a photosensitive drum, a developing unit including a developing roller and rotatably coupled to the photosensitive unit with respect to a hinge axis, a driving gear configured to rotate in a first direction for a printing operation or a second direction opposite the first direction, a driving member positioned coaxially with the driving gear and configured to be rotated by the driving gear, a first one-way clutch configured to connect the driving member with the driving gear only when the driving gear rotates in the second direction, and a first moving member configured to be connected to the driving member so as to reciprocate between a first location where a development nip is formed and a second location where the development nip is released.

Development cartridge and electrophotographic image forming apparatus using the same

A power transmission apparatus includes a drive gear disposed on a shaft of a motor; a plurality of driven gears disposed to be engaged with the drive gear; and a plurality of driven members configured to receive power from each of the plurality of driven gears, wherein the plurality of driven gears is arranged so that, when the plurality of driven gears are engaged with the drive gear, a gear engagement phase of each of the plurality of driven gears is different.

Rotational drive apparatus for transmitting rotational force to a plurality of driven gears

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.

Power transmitting apparatus and image forming apparatus implementing the same

An image forming apparatus, includes: a main body frame; a process cartridge which comprises a driven gear unit which is driven to form a visible image on an image carrying body; and a bracket device which comprises a bracket main body which is coupled to the main body frame, a driving gear unit which is supported to the bracket main body, and which is to be engaged with the driven gear unit, and a guide which guides the process cartridge into a mounting position in the main body frame.

Image forming apparatus with cartridge support

An image forming apparatus is configured to reduce a velocity fluctuation of a rotating body by reducing the AC velocity component of the rotating body. The image forming apparatus may include an image bearing body with a surface on which a toner image is formed; a driving motor configured to drive the image bearing body according to an input signal; and a controller configured to control the driving motor to output a motor output velocity at a period equal to that of an AC velocity component of the image bearing body. A velocity control method for the rotating body includes sampling a continuous motor input signal at a period equal to that of an AC velocity component of a rotating velocity of the rotating body. The sampled signal is transmitted to a driving motor that drives the rotating body, which is driven based upon the discrete motor input signal.

Image forming apparatus and velocity control method of rotating body thereof

Image forming apparatus having a driving gear unit and a support guide

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Suwon-si, South Korea

Sung-dae Kim