Abstract:
A memory having a memory cell, a resistance estimator and a write current generator. The resistance estimator is coupled to the memory cell to estimate the resistance of the memory cell and outputs an estimated resistance level. According to the estimated resistance level, the write current generator generates a write current to flow through the memory cell and to change the resistance of the memory cell. The write current is in a pulse form, and the write current generator sets the pulse width, or magnitude, or both the pulse width and the magnitude of the write current according to the estimated resistance level.
Abstract:
An embodiment of a writing system for a phase change memory based on a present application is disclosed. The writing system comprises a first phase change memory (PCM) cell, a second PCM cell, a first writing circuit and a verifying circuit. The first writing circuit executes a writing procedure, receives and writes a first data to the first PCM cell. The verifying circuit executes a verifying procedure and the circuit further comprises a processing unit and a second writing circuit. The processing unit reads and compares the data stored in the second PCM cell with a second data. The second writing circuit writes the second data to the second PCM cell when the data stored in the second PCM cell and the second data are not matched.
Abstract:
A phase change memory with an operating current that can be gradually increased or gradually decreased. The phase change memory has a phase change storage element, a transistor, and a control circuit. The transistor is operable to adjust the operating current flowing through the phase change storage element. The transistor has a first terminal coupled to a voltage source, a second terminal coupled to the phase change storage element, and a control terminal receiving a control signal from the control circuit. The control circuit is specially designed to limit the transistor in a linear region.
Abstract:
A frame structure disposing thereon a specific one of plural display panels having at least a first thickness and a second thickness is provided. The frame structure includes a receptacle disposing thereon the specific display panel having a specific thickness equivalent to one of the first and second thicknesses, a set of first fastening elements, each of which includes a first protrusion, and a set of second fastening elements, each of which includes a second protrusions, wherein the sets of first fastening elements and second fastening elements are peripherally disposed around the receptacle, each of the first protrusions has a height corresponding to the first thickness and each of the second protrusions has a height corresponding to the second thickness, whereby the specific display panel is fastened by one of sets of the first and second protrusions having the respective height corresponding to the specific thickness.
Abstract:
A phase change memory wherein several phase change storage elements are coupled in series to share a single current source. The current provided by the current source is directed by a plurality of switches. To write/read the phase change storage elements, the invention provides techniques to control the current value generated by the current source and controls the states of the switches. The impedance summation of the phase change storage elements vary with the data stored therein.
Abstract:
A frame structure disposing thereon a specific one of plural display panels having at least a first thickness and a second thickness is provided. The frame structure includes a receptacle disposing thereon the specific display panel having a specific thickness equivalent to one of the first and second thicknesses, a set of first fastening elements, each of which includes a first protrusion, and a set of second fastening elements, each of which includes a second protrusions, wherein the sets of first fastening elements and second fastening elements are peripherally disposed around the receptacle, each of the first protrusions has a height corresponding to the first thickness and each of the second protrusions has a height corresponding to the second thickness, whereby the specific display panel is fastened by one of sets of the first and second protrusions having the respective height corresponding to the specific thickness.
Abstract:
A flat panel display with detachable anti-vibrate speaker includes a speaker body with a front bezel attached at least one speaker driver, a rear bezel and a middle frame. The middle frame with a bottom positioning hole is made of an elastic material and situated between the front bezel and the rear bezel, and an elastic rib is formed on an inner surface of the middle frame to separate and to be against the front bezel and the rear bezel. A stand includes a positioning structure and a top surface groove. The positioning structure is assembled inside the top surface groove and is blocked by a blocking member fixed on an upper surface of the top surface groove. An elastic member is situated in the bottom of the top surface groove and a positioning member with a round top is located between the blocking member and the elastic member and is pushed to fit the positioning hole by the elastic member.
Abstract:
A system for operating system recovery is proposed and includes a data storage device having a first partition, a second partition and a third partition including bootable files, and a BIOS (basic input/output system) having a recovery function. When the recovery entry is accessed, the BIOS is enabled to boot the computer system to the third partition. After the computer system is booted, an OS image file in the second partition is unpacked into an integral copy of the operating system. The integral copy of operating system and a patch file in the second partition are copied to the first partition. Then, the third partition is set hidden and inactive, and the first partition is set active, and the computer system is rebooted to the first partition. The patch file is executed to patch the operating system in the first partition after the computer system is rebooted to the first partition.
Abstract:
A modular assembly includes a plate component attached to a tubular component having opposed first and second holes by means of a coupling tube, a clamp plate, and first and second screws. The coupling tube is inserted into the tubular component, and has first and second open ends extending respectively through the first and second holes, a clamping flange, and an internal screw thread. The clamp plate is disposed over the tubular component, and has a slot and two clamp end portions cooperating with the clamping flange to clamp the tubular component therebetween. The plate component abuts against the clamp plate, and is formed with a through hole. The first screw engages the internal screw thread through the first open end. The second screw engages the internal screw thread by passing through the through hole in the plate component, the slot, and the second open end.
Abstract:
A solar-powered transmission device includes a casing, a cover, a drive unit, and a solar collecting panel. The casing is formed with a hole unit. The cover cooperates with the casing so as to confine a component receiving space, and has a transparent portion that permits entry of light into the component receiving space. The drive unit is mounted in the component receiving space, and includes a motor, a speed-reduction gear set coupled to and driven rotatably by the motor, and an output shaft unit coupled to and driven rotatably by the speed-reduction gear set. The output shaft unit extends through the hole unit in the casing. The solar collecting panel is disposed in the component receiving space and is coupled electrically to the motor.