Samsung Electronics Co., Ltd.

Dong-yun Lee

Min-jo Choi

Dong-hun Yoo

Byung-Jo Lee

Seung-wook Lee

Tae-gwang Kim

Won-chan Kim

Il-Won Yang

Dae-yun Shim

Kee-wook Jung

Myoung-sun Joung

Oh-gyu Gweun

Wen-Chun Kim

An upright type vacuum cleaner is provided that includes a cleaner body formed with a mounting space; a vacuum motor mounted in the cleaner body to produce suction force; a brush assembly connected to the cleaner body; a dust collection device mounted in the mounting space and having a dust collection bin; and a lifting/lowering unit for lifting or lowering the dust collection bin in relation to the cleaner body, so that the dust collection bin is anchored in the mounting space or removed from the mounting space, wherein the cyclone cylinder has a locking handle and a handle connection part is formed on a corresponding part of the cleaner body so that the locking handle can be removably connected to the handle connection part.

Upright type vacuum cleaner

A path-conversion valve assembly for a vacuum cleaner comprises a valve member rotatably mounted in an air path formed in a cleaner of a vacuum cleaner which includes a socket for receiving a hose nozzle, and a resilient member mounted in the air path to resiliently press the rotating valve member in an opposite direction to the rotating direction of the valve member.

Path-conversion valve assembly for vacuum cleaner

The present disclosure relates to a dust collecting apparatus. The dust collecting apparatus includes a cyclone body forming a cyclone chamber; a plurality of inlets formed at the cyclone body, and causing air to enter through; and a discharging port formed at the cyclone body, and discharging the air from the cyclone chamber, wherein each inlet of the plurality of inlets is formed at a different height at a side of the cyclone body so that the air is divided to enter the cyclone chamber at a different height.

Dust collecting apparatus with a plurality of inlets

A multi-cyclone dust separating apparatus includes: a multi-cyclone unit including a first cyclone chamber body having a first cyclone chamber and at least one protection chamber formed around at least a portion of an outer circumference of the first cyclone chamber, and at least one secondary cyclone chamber body disposed in the protection chamber, each secondary cyclone chamber body having at least one secondary cyclone chamber; a cover unit connecting an upper end of the multi-cyclone unit and guiding air discharged from the first cyclone chamber to the at least one secondary cyclone chamber; a dirt collecting unit adapted to connect to a lower end of the multi-cyclone unit and configured to collect dirt separated from the air in the first and secondary cyclone chambers; and an air discharge duct configured to discharge air that has passed through the multi-cyclone unit.

Multi-cyclone dust separating apparatus

Disclosed is a soil collection receptacle attaching/detaching apparatus for a cyclone vacuum cleaner, which allows only a soil collection receptacle to be attached to or detached from a cyclone unit that includes a cyclone body as well as the soil collection receptacle, in which the cyclone unit is installed in an accommodation recess provided in a cleaner body, so that the soils in the soil collection receptacle can be conveniently dumped. Also disclosed is a cyclone vacuum cleaner provided with the soil collection receptacle attaching/detaching apparatus. The disclosed inventive apparatus comprises a soil collection receptacle having a sliding groove formed on the bottom surface that confronts the floor of the accommodation recess, a guide member located at the lower end of the soil collection receptacle, wherein the guide member is formed with a pair of guide projections at the opposite sides; and an operation lever adapted to move the guide member up and down, wherein the operation lever comprises a manipulation part and a pair of guide holes that cooperate with the guide projections, wherein the guide member moves up and down as the manipulation part is pulled and pushed, whereby the soil collection receptacle is attached to or detached from the cyclone unit. Because the soil collection receptacle is spaced from the cyclone body as the guide member is lifted, only the soil collection receptacle can be independently separated from the cleaner body.

Soil collection receptacle attaching/detaching apparatus for cyclone vacuum cleaner and vacuum cleaner having the same

Handle for upright vacuum cleaner

An attaching and detaching device for a contaminant collecting receptacle of a cyclone separator in a vacuum cleaner includes a sealing member having a through hole for providing fluid communication and air flow, a lever member surrounding the sealing member, and a guide member to guide upward and downward displacement of the lever member depending on the direction of displacement of the guide member.

Attaching and detaching device for contaminant collecting receptacle of cyclone separator

An integrated circuit having a locking circuit and method using the same are provided. The locking circuit includes a time-to-digital converter. The time-to-digital converter includes first and second delay chains, each for delaying one of two input signals at predetermined intervals. The time-to-digital converter also includes first and second phase comparators, each for comparing the delayed signal with the other signal and generating a digital signal. The locking circuit converts the phase difference between a feedback signal and an internal clock signal into a delay control signal group using the time-to-digital converter. The delay control signal group controls the delay time of a mirror delay circuit to rapidly minimize the phase difference between the feedback signal and the internal clock signal.

Time-to-digital converter and locking circuit and method using the same

Load driving circuits are adjusted to drive loads with fewer or more pull-down devices by sensing the load electrically coupled to the load driving circuit. In particular, capacitance of the load is compared to a threshold capacitance. If the capacitance of the load is less than the threshold capacitance, selected ones of the pull-down devices are disabled, thereby reducing the capacity of the load driving circuit. If the capacitance of the load is greater than the threshold capacitance, selected ones of the pull-down devices are enabled, thereby increasing the capacity of the load driving circuit. The pull-down devices include delay circuits that enable selected transistors after a delay.

Load driving circuits having adjustable output drive capability

An integrated circuit which generates a plurality of local clock signals with substantially no phase difference from an internal clock signal and a stable internal clock generating circuit that generates an internal clock having with reduced sensitivity to variations in a manufacturing process, temperature, supply voltage and noise are provided. The local clock signal generating circuit includes a plurality of phase blenders, each which receives the signals at two points on a clock signal line which transmits the internal clock signals, blends the received signals, and generates a local clock signal having a phase intermediate the phases of the signals at the two points. The internal clock signal generating circuit includes a feedback circuit and a delay lock loop (DLL) circuit. The feedback circuit generates a dummy local clock signal having the substantially the same phase as the local clock signal, delays the dummy local clock signal for the delay time of an internal circuit in which the local clock signal is used, and generates a feedback clock signal. The DLL circuit receives the feedback clock signal and an external clock signal input from the outside of the integrated circuit device, and generates the internal clock signal. Methods are also provided.

Internal clock generating circuits having delay compensation and methods for using the same

Clock generating circuits include a clock buffer, a delay mirror circuit (DMC), a clock frequency divider circuit and a clock generator circuit. The clock buffer is responsive to an external clock signal EXTCLK and generates a buffered clock signal ICLK in response to the external clock signal EXTCLK. The buffered clock signal ICLK is delayed relative to the external clock signal EXTCLK by a fixed buffer delay time 'dtb'. The delay mirror circuit (DMC) is responsive to the buffered clock signal ICLK and generates a delayed clock signal IDCLK. The delayed clock signal IDCLK is delayed relative to the buffered clock signal ICLK by a fixed delay-mirror time 'dtot'. The clock frequency divider circuit is responsive to the buffered clock signal ICLK and the delayed clock signal IDCLK. The clock frequency divider circuit includes first and second divider devices that generate first and second divided clock signals VDIV1 and VDIV2, respectively. The clock generator circuit is responsive to VDIV1 and VDIV2 and includes a control signal generator, an analog pump signal generator and a driver circuit. Based on this configuration of the above-described circuits, only 2 clock periods are required before the rising edge of the internal clock signal INTCLK is in-sync and in-phase with the external clock signal EXTCLK.

Growing community of inventors

Gwangju, South Korea

Dong-yun Lee