Abstract:
The present invention relates to a tilt device for a vehicular steering column, which permits a lock slider cooperating with an operating lever to regulate pivoting of a movable gear by simplifying the engagement structure between the movable gear and a fixed gear to reduce the number of parts and enhance assembling ability, thereby reducing manufacturing cost. The tilt device of the invention also minimizes the operating force of the operating lever while elevating the coupling force between the operating lever and a lock slider so as to improve convenience of users.
Abstract:
There is provided a compact duty cycle correction circuit including minimal components for generating a signal with a 50% duty cycle. The duty cycle correction circuit includes a storage element and a correction circuit. The storage element generates an output signal in response to a clock signal and a feedback signal. The correction circuit includes a resistor and a capacitor and outputs the feedback signal in response to the output signal of the storage element.
Abstract:
A redundancy circuit embedded in the semiconductor memory device includes a sector selector and a bit line selector. The bit line selector repairs defective bit lines and the sector selector repairs defective global bit lines and selectively repairs defective bit lines. The sector selector includes a fixed address cell storage box for storing addresses of the defective bit lines and a flexible address cell storage box for storing addresses of the defective global bit lines. The circuit area is minimized since the coding unit corresponding to a sector address is not included in the bit line selector. The repair rate of defective bit lines is improved since the sector selector operates selectively as the bit line selector.
Abstract:
A charge pump circuit includes a plurality of serially connected pump stages. Each pump stage includes current paths connected between a gate terminal of a charge transfer transistor and a drain terminal thereof. One of the charge transfer paths allows charges to be transferred from the drain terminal to the gate terminal while the other path allows charges to be transferred from the gate terminal to the drain terminal. The charge pump circuit can generate a high target voltage using a very low power supply voltage (e.g., 2V or lower).
Abstract:
Semiconductor memory device row decoder structures have reduced layout area. A structure for erasing memory cells coupled to a single bitline includes a single bias driver for these cells, and a plurality of local voltage level converters coupled to the bias driver. At least one word line driver is coupled to each local level converter, to erase at least one of the memory cells. A global word line is also coupled to the word line driver. A method for erasing these memory cells includes biasing the local level converter, for powering in turn a component of the word line driver. In addition, an existing global word line driver powers another component of the word line driver, thus resulting in reduced design requirements for the local level converter.
Abstract:
A sense amplifier circuit for a flash memory device of the present invention includes first and second pre-charge circuits for pre-charging a data line (or bit line connected electrically to the data line). The first and second pre-charge circuits are each connected to the data line. The first pre-charge circuit provides a current changed by a fluctuation of the data line voltage to the data line, and the second pre-charge circuit provides a constant voltage regardless of the fluctuation of the data line voltage to the data line. The sense amplifier minimizes the time required to pre-charge the data line (or bit line) to a desired voltage.
Abstract:
A housing of a mobile device including a frame defining a perimeter of the mobile device, the frame including a first metal material and configured to operate as a first antenna for a first wireless communication, and a cover configured to cover one surface of the mobile device, the cover including a second metal material, and the cover and at least a portion of the frame configured to operate as a second antenna for a second wireless communication may be provided.
Abstract:
A near field communication (NFC) device includes a resonance unit and an NFC chip. The resonance unit emits an electromagnetic wave to communicate data with an external NFC card in a reader mode. The NFC chip estimates a distance between the resonance unit and the external NFC card based on an antenna voltage generated by the resonance unit while the resonance unit emits the electromagnetic wave, and adjusts a magnitude of the electromagnetic wave based on the estimated distance.
Abstract:
A memory system includes a memory and a memory controller operating to control the memory. The memory includes a random accessible memory including a memory cell array operable in a random access mode, a NAND flash memory, and a selection circuit making the memory controller operate either one of the random accessible memory or the NAND flash memory.
Abstract:
Example embodiments provide a method and apparatus of correcting error data due to charge loss within a non-volatile memory device including a plurality of memory cells. The method of correcting error data within the non-volatile memory devices may include detecting error data in a second data group by comparing a first data group read from memory cells in response to a first voltage with the second data group read from memory cells in response to a second voltage. The second voltage is higher than the first voltage. Error data in the first data group is detected by error-correcting code (ECC). Re-writing data in the memory cells is performed by correcting error data in the first data group and error data in the second data group. A central processing unit (CPU) may detect error in the second data group. The second data group may be read through a page buffer and compared with the first data group stored in a SRAM. The detected error may be updated to the page buffer. Error data in the first data group may be updated to the page buffer. The CPU corrects error in the final error data, and the page buffer rewrites the corrected data in the plurality of memory cells.