Abstract:
A phase change memory (PCM) in which the phase change storage element is crystallized by a gradually increasing/decreasing operating current. The PCM comprises a switching circuit, the phase change storage element, a bit select switch, a pulse generating module, and a counting module. The switching circuit comprises a plurality of switches, selectively providing branch paths to an output terminal of a current source. The bit select switch controls the conduction between the phase change storage element and the output terminal of the current source. The pulse generating module outputs a pulse signal oscillating between high and low voltage levels. When enabled, the counting module counts the oscillations of the pulse signal, and outputs the count result by a set of digital data. The set of digital data are coupled to the switching circuit to control the switches therein.
Abstract:
A technique for updating and maintaining a wireless communication database (40) includes several features. One feature is a search capability that facilitates, for example, an individual locating appropriate portions of the database to be updated in a desired manner. A platinum data image portion includes a relational database regarding various rules governing the contents of the wireless communication database. If a proposed change will violate any of these rules, an error message is provided. If a proposed change is acceptable, it will be implemented on an automated basis. A disclosed example includes the capability of scheduling proposed changes into the future, indicating a proposed change for one particular data field and instructing an automated update of all similar or related data fields in a particular manner.
Abstract:
A technique for updating and maintaining a wireless communication database (40) includes several features. One feature is a search capability that facilitates, for example, an individual locating appropriate portions of the database to be updated in a desired manner. A platinum data image portion includes a relational database regarding various rules governing the contents of the wireless communication database. If a proposed change will violate any of these rules, an error message is provided. If a proposed change is acceptable, it will be implemented on an automated basis. A disclosed example includes the capability of scheduling proposed changes into the future, indicating a proposed change for one particular data field and instructing an automated update of all similar or related data fields in a particular manner.
Abstract:
The present invention relates to a safety switch for an electric nailer including a trigger which can return to original state after being pressed. The safety switch comprises a stop portion and a safety member, the stop portion is formed in the electric nailer. The safety member includes a push plate and an abutting portion, and the safety member is fixed in the electric nailer and can return to its original position after being pressed, the push plate serves to cover the trigger, and the abutting portion abuts against the stop portion. Thus, the electric nailer will be in a safe mode automatically when not in use, and an accident of pressing the trigger by mistake can be prevented.
Abstract:
A learning toy includes a board assembly having a plurality of perforations, and at least one toy element provided with a stud member for insertion into one of the perforations so as to attach the toy element onto the board assembly. The board assembly includes a base and a face panel removably superposed on the base, the base being formed with a plurality of perforations extending through the thickness of the base, and the face panel being formed with a plurality of perforations respectively aligned with the perforations of the base. A plurality of toy elements may be provided, the heads of the toy elements being embodied in various forms and configurations so that a variety of games may be played on the board assembly.
Abstract:
A plane display with a foldable support. The plane display comprises a base and a back plane mounted on a plane display panel. The back plane pivots on the base by a sleeve. The connecting rod is disposed in the sleeve, and slides between a first position and a second position. An L-shaped member is fixed on the connecting rod. When the connecting rod is in the first position, the L-shaped member secures the back plane to the base at a first angle. When the connecting rod is in the second position, the L-shaped member releases the back plane from the base, and the back plane rotates with respect to the base to a second angle.
Abstract:
A transparent spherical toy includes upper and lower shell halves. The upper shell half has a bottom end face, a thickness reduced rim portion extending downwardly from the bottom end face, an outer recess formed outside of the inner space and extending upwardly from the bottom end face, and a male thread formed on the rim portion. The lower shell half has a top end face, an inner wall, a ring-shaped shoulder projecting into the inner space from the inner wall adjacent to the top end face so that the rim portion is seated against the shoulder, a female thread formed on the inner wall between the top end face and the shoulder and engaging the male thread, and a notch formed in the top end face above the female thread and aligned with the outer recess. The transparent spherical toy further includes a sealing ring disposed between the shoulder and the rim portion for providing sealing therebetween when the male and female threads engage each other tightly, and a dog mounted rotatably in the outer recess and extending therefrom into the notch for preventing the upper shell half from rotating relative to the lower shell half.
Abstract:
A circuit and a method for controlling the write timing of a non-volatile memory are provided. The method includes the following steps. First, a resistance state switching of at least one memory cell of the non-volatile memory executing a writing operation is monitored to output a control signal. The memory cell stores data states with different resistance states. A write timing is input to the memory cell through a timing control line. Next, the write timing is generated based on a clock signal and the control signal. The write timing is enabled at the beginning of a cycle of the clock signal, and is disabled when the memory cell finishes the resistance state switching.
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 metal-air fuel cell module includes a cap seat connected detachably to a casing and having a plug portion extending into an inner accommodating space in the casing for plugging an opening in the casing; a conductive gas-diffusion sheet disposed in the casing for covering sealingly air inlets in the casing, and permitting air to pass through; an electrolyte solution filled in the inner accommodating space; a metal sheet disposed in the inner accommodating space and connected detachably to the plug portion of the cap seat; a first electrode plate mounted on the casing, extending into the inner accommodating space and in electrical contact with the gas-diffusion sheet; and a second electrode plate mounted in the cap seat, extending into the inner accommodating space and in electrical contact with the metal sheet.